WO2015010233A1

WO2015010233A1 - Method, apparatus and network media system for playing multiple media contents

Info

Publication number: WO2015010233A1
Application number: PCT/CN2013/079776
Authority: WO
Inventors: 匡运生; 单振威; 朱萸
Original assignee: 华为终端有限公司
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2015-01-29
Also published as: CN105393533B; CN105393533A

Abstract

Embodiments of the present invention provide a method, an apparatus and a network media system for playing multiple media contents. The method comprises: respectively acquiring a playing bit rate of an adaptive bit stream media content played by each media player in N media players, wherein N>2; and if playing bit rates of M1 adaptive bit stream media contents are less than respective corresponding first bit rate thresholds, and M1<N, adjusting bit rates of adaptive bit stream media contents played by K media players, wherein M1≤K≤N. In the embodiments of the present invention, when playing bit rates of adaptive bit stream media contents played by a part of media players are less than respective corresponding bit rate thresholds, the playing bit rates of adaptive bit stream media contents played by multiple media players can be adjusted, so as to implement fair play, and improve user experience.

Description

Method, device and network media system for playing multiple ^^ body contents

Embodiments of the present invention relate to the field of communications, and in particular, to a method, an apparatus, and a network media system for playing multiple media content. Background technique

Adaptive code stream transmission technology is a streaming media transmission technology. The MPEG (Moving Pictures Experts Group) standards organization has introduced the adaptive code stream transmission technology standard - DASH (Dynamic Adaptive Streaming over HTTP). Adaptive code stream transmission technology can be collectively referred to as DASH technology.

DASH technology can convert and expand a streaming media file, expand a fixed resolution and bitrate streaming media file into a family of streaming media files with different resolutions and bitrates, but play the same content, and then focus on the files. The media data of each streaming media file is fragmented in time (generally one piece of data corresponds to the media file playing for a few seconds). The metadata information and the fragmentation information of the streaming media files of different code rates in a streaming media file set constitute an MPD (Media Presentation Description) file corresponding to the media file set. The player monitors the network bandwidth during the media playback. When the network bandwidth is sufficient, the player requests the streaming media file with the highest bit rate from the server to play, and once the network bandwidth is insufficient, the streaming file is smoothly played. When the player requests a low-rate streaming media file from the server according to the MPD file, the player can play the streaming video file at the cost of reducing the resolution of the media image, thereby improving the user experience.

Due to the mechanism of the DASH technology, when playing multiple DASH media content, the code rate of the streaming media files allocated for different DASH media contents may be greatly different, and the problem of unfair play may occur. For example: There are two media players DMR1 and DMR2 in a family. The clear rate thresholds of DMR1 and DMR2 when playing movies are 1.6Mbps and 1.2Mbps respectively, namely DMR1. When playing a movie with a code rate of 1.6 Mbps or higher, the image resolution and picture quality are superior. When the DMR2 plays a movie with a code rate of 1.2 Mbps or higher, the image resolution and picture quality are superior; among them, DMR1 Playing movie A, playing movie K in DMR2, movie A and movie K are both DASH media content; the total available bandwidth of the home network is 2.8 Mbps; wherein, the slice rate of movie A includes 200 kbps, 400 kbps, 800 kbps, 1.2 Mbps, 1.6Mbps and 2.2Mbps, the fragmentation rate of movie K includes 200kbps, 500kbps, 800kbps, 1.2Mbps, 1.5Mbps and 1.8Mbps; Movie A first plays on DMR1, at this time DMR1 plays the code of movie A due to sufficient network bandwidth. The rate is 2.2 Mbps, and then the movie K is played on the DMR2. At this time, due to the limitation of the network bandwidth, the code rate of the movie K played by the DMR2 is 500 kbps; thus, the code rate of the fragments obtained by the two DASH media contents is greatly different. The corresponding image resolution and picture quality will also be very different, resulting in unfair playback and affecting the user experience. Summary of the invention

Embodiments of the present invention provide a method, an apparatus, and a network media system for playing multiple media content, so as to achieve fair play and improve user experience. .

The first aspect, a method for playing a plurality of adaptive code stream media content, comprising: respectively acquiring a play rate of the adaptive code stream media content played by each media player in the N media players, N > 2;

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, adjusting the playback of the adaptive code stream media content played by the K media players a code rate, M1 KN; wherein, the first code rate threshold corresponding to the adaptive stream media content played by each media player is based on device capability information of each media player and played by each media player The description information of the adaptive code stream media content is obtained.

In a first possible implementation manner of the first aspect, if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and M1 < N, Adjusting the play rate of the adaptive stream media content played by the K media players, including: If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, according to the total content for playing the N adaptive code stream media content The bandwidth and the description information of each of the adaptive code stream media content, and the corresponding code rate of the adaptive code stream media content played by the K media players is allocated;

Transmitting a code rate adjustment command to the media server according to a play rate allocated for the adaptive code stream media content played by the K media players, so that the media server sends a code rate to the K media players The adaptive stream media content of the assigned transmission rate.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the total bandwidth and each adaptive code stream media used for playing the N adaptive code stream media content Content description information, when the corresponding code rate is allocated for the adaptive code stream media content played by the K media players, the play rate is allocated according to the following rules:

And a sum of transmission code rates of the adaptive code stream media content played by the allocated N media players is less than or equal to a total bandwidth used for playing the N adaptive code stream media content;

And if the sum of the first code rate threshold values of the adaptive code stream media content played by the N media players is less than or equal to the total bandwidth for playing the adaptive code stream media content, The play rate of the adaptive code stream media content played by the N media players is greater than or equal to the corresponding first code rate threshold; respectively; if the N media players play the first of the adaptive code stream media content The sum of the code rate thresholds is greater than the total bandwidth used for playing the N pieces of adaptive code stream media, and the played code rate of the adaptive code stream media content played by the allocated N media players Respectively greater than or equal to the corresponding second rate threshold;

The second rate threshold corresponding to the adaptive stream media content played by each media player is obtained according to device capability information of each media player and description information of each adaptive stream media content; The first code rate threshold corresponding to the adaptive stream media content played by the media players is greater than the second code rate threshold.

With reference to the first aspect, in a third possible implementation manner of the first aspect, if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, And Ml < N, the play rate of the adaptive stream media content played by the K media players is adjusted, including:

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, requesting the media server to improve the M1 adaptive code stream media content The service quality level of the data packet is such that the data message corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first rate threshold is preferentially sent to the corresponding media player. And causing the play rate of the K adaptive code stream media content to be adjusted; wherein, N=2, K=2.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the requesting media server is configured to increase the M1 play rate to be lower than a corresponding first rate threshold After the value of the adaptive code stream media content corresponding to the service quality level of the data message, the method further includes:

And if the playback code rate of each of the adaptive code stream media content is greater than or equal to a corresponding first code rate threshold, requesting the media server to restore the corresponding code stream media content corresponding to the improved quality of service level. The quality of service level of the data message; or

If the sum of the first code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the total bandwidth for playing the N pieces of adaptive code stream media content, the service quality level is not improved When the play rate of the adaptive code stream media content is adjusted to be equal to the corresponding first code rate threshold, requesting the media server to resume the service of the data message corresponding to the adaptive code stream media content of the improved quality of service level quality level.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes:

If the play rate of the N pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, determining whether the play rate of each of the adaptive code stream media contents is lower than the corresponding a second rate threshold; a second rate threshold corresponding to the adaptive stream media content played by each media player is based on device capability information and each adaptation of each media player The description information of the code stream media content is obtained; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold;

If the play rate of the M2 adaptive code stream media content is lower than the corresponding second code rate threshold, and M2 < N, requesting the media server to increase the M2 play rate is lower than the corresponding a quality of service level of the data packet corresponding to the adaptive code stream media content of the second code rate threshold, so that the playback code rate is lower than the corresponding code stream media content corresponding to the second code rate threshold The data message is preferentially sent to the corresponding media player, and the play rate of the N adaptive code stream media content is adjusted; wherein N=2.

With reference to the fifth possible implementation manner of the foregoing aspect, in a sixth possible implementation manner of the first aspect, the requesting media server is configured to increase the M2 play rate to be lower than a corresponding second rate threshold After the value of the adaptive code stream media content corresponding to the service quality level of the data message, the method further includes:

And if the playback code rate of each of the adaptive code stream media content is greater than or equal to a corresponding second code rate threshold, requesting the media server to restore the corresponding code stream media content corresponding to the improved quality of service level. The quality of service level of the data message; or

If the sum of the second code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the total bandwidth for playing the N pieces of adaptive code stream media content, the service quality level is not improved When the play rate of the adaptive code stream media content is adjusted to be equal to the corresponding second code rate threshold, requesting the media server to recover the service of the data message corresponding to the adaptive code stream media content of the improved quality of service level quality level.

In a second aspect, a media controller includes:

An information obtaining unit, configured to respectively acquire a play rate of the adaptive code stream media content played by each media player in the N media players, N>2;

And an adjusting unit, configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and M1 < N, adjust an adaptive code played by the K media players Play rate of streaming media content, M1 KN; where, each media player plays the adaptive The first rate threshold corresponding to the content of the streaming media is obtained according to the device capability information of each media player and the description information of the adaptive stream media content played by each media player.

In a first possible implementation manner of the second aspect, the adjusting unit includes: a rate allocation module and an adjustment trigger module, and/or a first request module;

The code rate allocation module is configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and M1 < N, according to the N for playing Assigning a corresponding play rate to the adaptive code stream media content played by the K media players;

The adjustment triggering module is configured to send a code rate adjustment command to the media server according to a play rate that is allocated by the code rate allocation module for the adaptive code stream media content played by the K media players, so that the Transmitting, by the media server, the adaptive code stream media content whose rate is the assigned transmission code rate to the K media players;

The first requesting module is configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and M1 < N, request the media server to increase the M1 a service quality level of the data packet corresponding to the content of the adaptive code stream media, such that the M 1 play rate is lower than the data packet corresponding to the corresponding code stream media content of the corresponding first rate threshold It is preferentially sent to the corresponding media player, and the play rate of the K adaptive code stream media content is adjusted; wherein, N=2, K=2.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the code rate allocation module is configured to perform total bandwidth and each adaptation according to the content of the adaptive code stream media The description information of the code stream media content, when the corresponding code rate is allocated for the adaptive code stream media content played by the media players, the play rate is allocated according to the following rules:

And a sum of transmission code rates of the adaptive code stream media content played by the allocated media players is less than or equal to a total bandwidth of the media content for playing the ones of the adaptive code streams;

If the sum of the first rate thresholds of the adaptive stream media content played by the one of the media players is less than or equal to the total bandwidth of the content for playing the adaptive stream media, then the allocated The play rate of the adaptive code stream media content played by the N media players is greater than or equal to the corresponding first code rate threshold; if the N media players play the adaptive code stream media content The sum of the first code rate threshold values is greater than the total bandwidth used for playing the N adaptive code stream media contents, and the allocated content of the adaptive code stream media content played by the N media players is played. The code rate is greater than or equal to the corresponding second rate threshold;

With reference to the second aspect, in a third possible implementation manner of the second aspect, the media controller further includes: a determining module and a second requesting module;

The determining module is configured to determine, if the play rate of the N pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, determine the play of each of the adaptive code stream media content Whether the code rate is lower than the corresponding second code rate threshold; the second code rate threshold corresponding to the adaptive code stream media content played by each media player is based on the device capability information of each media player. And the description information of each adaptive code stream media content; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold; a requesting module, configured to: if the determining module determines that a play rate of the M2 pieces of the adaptive code stream media content is lower than a corresponding second code rate threshold, and M2 < N, requesting the media server to improve Determining a service quality level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second code rate threshold, so that the play rate is lower than the corresponding second code rate gate Adaptive code The data message corresponding to the streaming media content is preferentially sent to the corresponding media player, and the play rate of the N adaptive code stream media content is adjusted; wherein, N=2.

In conjunction with the first possible implementation of the second aspect, or the third possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the media controller further includes: Level recovery unit; the level recovery unit is used to:

After the first requesting module requests the media server to improve the quality of service level of the data packet corresponding to the adaptive code stream media content of the M1 playback rate that is lower than the corresponding first rate threshold, if each And the playing code rate of the adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, and then requesting the media server to recover the data packet corresponding to the adaptive code stream media content of the improved quality of service level. Quality of service level; or

After the first requesting module requests the media server to improve the quality of service level of the data packet corresponding to the adaptive code stream media content of the M1 play rate that is lower than the corresponding first rate threshold, if the N is The sum of the first code rate thresholds corresponding to the adaptive code stream media content is greater than the total bandwidth used for playing the N adaptive code stream media content, and is not improved by the improved quality of service level When the play rate of the code stream media content is adjusted to be equal to the corresponding first code rate threshold, requesting the media server to restore the service quality level of the data message corresponding to the adaptive code stream media content of the improved service quality level; Or

After the second requesting module requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second rate threshold, if each And the playback code rate of the adaptive code stream media content is greater than or equal to the corresponding second code rate threshold value, and then requesting the media server to recover the data message corresponding to the adaptive code stream media content of the improved service quality level. Quality of service level; or

After the second requesting module requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second rate threshold, if the N quality is The sum of the second code rate thresholds corresponding to the adaptive code stream media content is greater than the total bandwidth used for playing the N adaptive code stream media content, and is not improved by the improved quality of service level When the play rate of the code stream media content is adjusted to be equal to the corresponding second code rate threshold, the media server is requested to restore the service quality level of the data message corresponding to the adaptive code stream media content of the improved service quality level.

In a third aspect, a network media system includes: a media server, a media controller, and a Media players, N >2;

The media player is configured to acquire adaptive code stream media content from the media server, and play the acquired adaptive code stream media content;

The media server is configured to store adaptive code stream media content, and provide the media player with description information of the adaptive code stream media content and the adaptive code stream media content;

The media controller is configured to separately acquire a play rate of the adaptive stream media content played by each media player in the N media players; if the play rate of the M1 adaptive code stream media content is low Adjusting the play rate of the adaptive code stream media content played by the K media players, M1 KN, respectively, corresponding to the first code rate threshold value, and M1 < N;

The media player is further configured to obtain, according to the device capability information of the media player and the description information of the adaptive code stream media content played by the media player, the first corresponding to the adaptive code stream media content played by the media player. Rate threshold.

In a first possible implementation manner of the third aspect, the media controller is specifically configured to: when adjusting a play rate of the adaptive code stream media content played by the K media players:

And the media controller plays the adaptive stream media for the K media players according to a total bandwidth for playing the N adaptive code stream media content and description information of each adaptive code stream media content. The play rate corresponding to the content distribution;

Transmitting a code rate adjustment command to the media server according to a play rate allocated for the adaptive code stream media content played by the K media players, so that the media server sends a code to the K media players The rate is the adaptive stream media content of the assigned transmission rate.

In conjunction with the first possible implementation of the third aspect, in a second possible implementation of the third aspect,

And the media controller plays the adaptive stream media for the K media players according to a total bandwidth for playing the N adaptive code stream media content and description information of each adaptive code stream media content. When the content is assigned a corresponding play rate, the play rate is allocated according to the following rules: The sum of the transmission code rates of the adaptive code stream media content played by the allocated N media players Less than or equal to the total bandwidth for playing the N adaptive code stream media content; if the sum of the first code rate threshold values of the adaptive code stream media content played by the N media players is less than or Equal to the total bandwidth used for playing the content of the adaptive code stream media, the play rate of the adaptive code stream media content played by the allocated N media players is greater than or equal to the corresponding first code rate gate respectively. a limit value; if the sum of the first rate thresholds of the adaptive stream media content played by the N media players is greater than the total bandwidth used to play the N adaptive stream media content, The play rate of the adaptive code stream media content played by the allocated N media players is greater than or equal to the corresponding second code rate threshold;

The media player is further configured to obtain, according to the device capability information of the media player and the description information of each adaptive code stream media content, a second code rate threshold corresponding to the adaptive code stream media content played by the media player. The first rate threshold corresponding to the adaptive stream media content played by each media player is greater than the second rate threshold.

In conjunction with the third aspect, in a third possible implementation manner of the third aspect, the media controller, when adjusting a play rate of the adaptive code stream media content played by the k media players, is specifically configured to:

If the media controller requests the media server to improve the quality of service of the data packet corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first code rate threshold, Level, such that the data message corresponding to the M1 playback code rate whose content is lower than the corresponding first code rate threshold is preferentially sent to the corresponding media player, and the K is made The playback code rate of the adaptive code stream media content is adjusted; wherein, N=2, K=2;

If the M1 is Ν, the media controller determines whether the play rate of each of the adaptive code stream media content is lower than a corresponding second code rate threshold; if the two adaptive code streams are The play rate of the content is lower than the corresponding second rate threshold, and Μ2 < Ν, requesting the media server to increase the 播放2 play rate lower than the corresponding second rate threshold Adapting a service quality level of the data packet corresponding to the content of the code stream media, so that the data packet corresponding to the adaptive code stream media content whose play rate is lower than the corresponding second code rate threshold is sent preferentially Go to the corresponding media player, and adjust the play rate of the N adaptive code stream media content; wherein, N=2;

In conjunction with the third possible implementation of the third aspect, in a fourth possible implementation of the third aspect,

After the media controller requests the media server to improve the quality of service level of the data packet corresponding to the adaptive code stream media content of the M1 play rate that is lower than the corresponding first code rate threshold, the media controller further uses In:

And if the play rate of each of the adaptive code stream media content is greater than or equal to a corresponding first code rate threshold, the media controller requests the media server to recover an adaptive code of the improved quality of service level. a quality of service level of the data message corresponding to the streaming media content; or, if the sum of the first code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the N adaptive code for playing The total bandwidth of the streaming media content is requested to restore the improved quality of service when the playback code rate of the adaptive stream media content that is not improved by the quality of service level is adjusted to be equal to the corresponding first rate threshold. The quality of service level of the data message corresponding to the level of adaptive code stream media content;

After the media controller requests the media server to improve the quality of service level of the data packet corresponding to the adaptive code stream media content whose M2 play rate is lower than the corresponding second rate threshold, In:

And if the playback code rate of each of the adaptive code stream media content is greater than or equal to a corresponding second code rate threshold, requesting the media server to restore the corresponding code stream media content corresponding to the improved quality of service level. a quality of service level of the data message; or, if the sum of the second code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the N for playing Requesting the media server recovery to be improved when the total bandwidth of the content of the streaming media content is adjusted to be equal to the corresponding second rate threshold when the playback code rate of the adaptive stream media content that is not improved by the quality of service level is adjusted The quality of service level of the data message corresponding to the adaptive code stream media content of the quality of service level.

In a fourth aspect, a media controller includes:

One or more processors;

Memory

One or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising:

Obtaining, respectively, an instruction of a play rate of the adaptive stream media content played by each media player in the N media players, N > 2;

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, adjusting the playback of the adaptive code stream media content played by the K media players The code rate command, M1 KN; wherein, the first code rate threshold corresponding to the adaptive stream media content played by each media player is based on device capability information of each media player and each media player The description information of the adaptive code stream media content is played.

In a first possible implementation manner of the fourth aspect, if the play rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and M1 < N, The instruction for adjusting the play rate of the adaptive code stream media content played by the K media players includes: if the play rate of the M1 pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold And M1 < N, the adaptive code played for the K media players according to the total bandwidth for playing the N adaptive code stream media content and the description information of each adaptive code stream media content An instruction to allocate a corresponding playback rate to the streaming media content;

Transmitting a code rate adjustment command to the media server according to a play rate allocated for the adaptive code stream media content played by the K media players, so that the media server sends a code rate to the K media players The instruction of the adaptive code stream media content of the assigned transmission rate. With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the total bandwidth and each adaptive code stream media used for playing the N adaptive code stream media content Content description information, when the corresponding code rate is allocated for the adaptive code stream media content played by the K media players, the play rate is allocated according to the following rules:

With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the playback code rate of the M1 pieces of the adaptive code stream media content is lower than a corresponding first code rate threshold, and Ml < N, the instruction to adjust the play rate of the adaptive stream media content played by the K media players, including:

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, requesting the media server to improve the M1 adaptive code stream media content The service quality level of the data packet is such that the data message corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first rate threshold is preferentially sent to the corresponding media player. And causing the playback rate of the K adaptive code stream media content to be adjusted Entire instruction; where N=2, K=2.

In conjunction with the third possible implementation of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the one or more programs further include:

After the requesting media server increases the quality of service level of the data message corresponding to the adaptive code stream media content of the M1 play rate lower than the corresponding first code rate threshold, if each of the adaptive code streams If the play rate of the media content is greater than or equal to the corresponding first rate threshold, the media server is requested to restore the quality of the service quality level of the data packet corresponding to the adaptive stream media content of the improved quality of service level. ; or

After the requesting media server increases the quality of service level of the data message corresponding to the adaptive code stream media content of the M1 play rate lower than the corresponding first code rate threshold, if the N pieces of the adaptive code stream And the sum of the first code rate threshold values corresponding to the media content is greater than the total bandwidth used for playing the N adaptive code stream media content, and the content of the adaptive code stream media content is not improved by the quality of service level When the code rate is adjusted to be equal to the corresponding first rate threshold, the media server is requested to resume the instruction of the quality of service level of the data message corresponding to the adaptive code stream media content of the improved quality of service level.

In conjunction with the fourth aspect, in a fifth possible implementation of the fourth aspect, the one or more programs further includes:

If the play rate of the N pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, determining whether the play rate of each of the adaptive code stream media contents is lower than the corresponding The second rate threshold command; the second rate threshold corresponding to the adaptive stream media content played by each media player is based on device capability information and each adaptation of each media player The description information of the code stream media content is obtained; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold;

If the play rate of the M2 adaptive code stream media content is lower than the corresponding second code rate threshold, and M2 < N, requesting the media server to increase the M2 play rate is lower than the corresponding The service quality of the data packet corresponding to the adaptive code stream media content of the second code rate threshold Level, so that the data message corresponding to the adaptive code stream media content whose play rate is lower than the corresponding second code rate threshold is preferentially sent to the corresponding media player, and the N self is made An instruction adapted to adjust the play rate of the code stream media content; wherein, N=2.

In conjunction with the fifth possible implementation of the fourth aspect, in a sixth possible implementation of the fourth aspect, the one or more programs further includes:

After the requesting media server increases the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second code rate threshold, if each of the adaptive code streams If the play rate of the media content is greater than or equal to the corresponding second rate threshold, the media server is requested to resume the service quality level of the data message corresponding to the adaptive code stream media content of the improved service quality level. ; or

After the requesting media server increases the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second rate threshold, if the N pieces of the adaptive code stream And the sum of the second code rate thresholds corresponding to the media content is greater than the total bandwidth used for playing the N adaptive code stream media content, and the content of the adaptive code stream media content is not improved by the quality of service level When the code rate is adjusted to be equal to the corresponding second rate threshold, the media server is requested to resume the instruction of the quality of service level of the data message corresponding to the adaptive code stream media content of the improved quality of service level.

In the embodiment of the present invention, the media controller may obtain a play rate of the adaptive stream media content played by each media player, and when the playback rate of the adaptive stream media content played by a part of the media player is lower than the corresponding When the code rate threshold is used, the media controller can adjust the play rate of the adaptive code stream media content played by the plurality of media players, thereby achieving fair play and improving the user experience. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only Some embodiments of the invention may be obtained by those of ordinary skill in the art in view of the drawings without additional inventive labor.

FIG. 1 is a flow chart of a method for playing a plurality of adaptive code stream media contents according to an embodiment of the present invention; FIG.

2 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention;

FIG. 3 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention; FIG.

4 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention;

FIG. 5 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a media controller according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of another media controller according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of a network media system according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

When the embodiments of the present invention refer to "first", "second," or the like, unless the meaning of the order is actually expressed according to the context, it should be understood as merely distinguishing.

FIG. 1 is a flowchart of a method for playing multiple adaptive code stream media content according to an embodiment of the present invention. As shown in FIG. 1, the method includes: Step 101: The media controller separately obtains a play rate of the adaptive code stream media content played by each media player in the N media players, where N>2.

This embodiment can be applied to a network media system, which can include a media server, a media controller, and a plurality of media players.

The media server is configured to store media files, such as adaptive code streaming media content, and provide the media player with description information of the adaptive stream media content and the adaptive stream media content. A commonly used media server can be a network device capable of generating and storing media files such as photos, videos, and the like, such as a mobile phone, a personal computer, a digital camera, or a tablet. When the media content played by the media player is DASH media content, the media server has the function of storing the fragment data of the media file set corresponding to the DASH media content and the corresponding MPD file.

The media player is capable of decoding an image file and displaying or playing an image, such as obtaining adaptive stream media content from a media server, and playing the acquired adaptive stream media content. The media player in the embodiment of the present invention may be, for example, a television, a personal computer, a mobile phone, a tablet computer or the like. The media player can monitor the network bandwidth, the CPU processing capability of the media player, and the like in real time, and request media media suitable for playing according to the monitored result and the obtained MPD file.

The media controller is capable of invoking control commands on the media server and media player to control the transmission and presentation of media content. The media controller can also obtain status information of the media player and status information of the media content played by the media player. It should be noted that the media controller may be a physical device different from the media server and the media player, or may be combined with the media server or the media player to form a physical device.

The adaptive media content played by each media player has a certain code rate. The media controller can obtain the bit rate of the adaptive media content played by each media player.

Step 102: If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, the media controller adjusts the adaptive code stream played by the K media players. The playback rate of the media content, M 1 KN. The first rate threshold corresponding to the adaptive stream media content played by each media player may be based on device capability information of each media player and adaptive code stream media played by each media player. The description of the content is obtained. The first rate threshold may be obtained by the media player based on device capability information and description information.

The device capability information of the media player may include the screen size of the media player, the resolution size, the supported audio and video codec format, and the like. The description information of the adaptive code stream media content may include a plurality of code rate information corresponding to the media content. The media server stores a plurality of files of different code rates of the same media content, and includes information of the bitrates in the description information of the media content. When the same media content is played in different media players, the required code rate may be different in order to achieve the same effect due to the different device capabilities of each media player; for example: when the same movie is played on the mobile phone A relatively low bit rate can achieve a better playback effect, and when playing on a TV, a relatively high bit rate is required to achieve a better playback effect. That is to say, when the same media content is played in different media players, the required code rate may be different in order to achieve the same effect.

The first code rate corresponding to the adaptive stream media content played by each media player may be obtained according to the device capability information of each media player and the description information of the adaptive stream media content played by each media player. Threshold. For example, the player A1 plays the adaptive code stream media content a1, and according to the device capability information of the player A1 and the description information of the adaptive code stream media content a1, the first time when the player A1 plays the adaptive code stream media content a1 is obtained. Rate threshold. The first rate threshold of the same media player playing different adaptive stream media content may be different; for example: the adaptive code stream media content a1 and a2 have different code rate information, and the code of the media content a1 The rate is 2.2Mbps, 1.6Mbps, 1.2Mbps, 800Kbps, 400Kbps, 200Kbps, and the media content a2 has a bit rate of l.lMbps, 800Kbps, 500Kbps, 200Kbps; if you want to achieve better results on the player Al, you need media content. The code rate is greater than or equal to 1.2 Mbps. Then, when the player A1 plays the media content a1, the first code rate threshold is 1.2 Mbps, but for the media content a2, the maximum code rate is only 1.1 Mbps, so when the player Al play media When the content is a2, the first code rate threshold is 1.1 Mbps. The first rate threshold of different media players playing the same adaptive stream media content may also be different; for example: because the screen size and resolution of the mobile phone and the TV are different, the same adaptive stream media When the content is played on the mobile phone and the TV respectively, the first code rate threshold is different.

When the media controller obtains that the adaptive code stream media content played by the part of the media player is lower than the corresponding first code rate threshold, the media controller adjusts the adaptive stream media content played by some or all of the media players. Play rate.

The manner in which the media controller adjusts the play rate of the adaptive stream media content played by the media player may include: (1) the media controller according to the total bandwidth and each adaptation for playing the N adaptive code stream media content Decoding information of the content of the code stream, assigning a corresponding play rate to the adaptive stream media content played by each media player, and sending a code rate adjustment command to the media server, so that the media server sends to each media player The code rate is the adaptive code stream media content of the assigned transmission code rate; or, (2) the media controller can adjust the quality of service level of the played adaptive code stream media content, when an adaptive code stream media content After the quality of service level is adjusted, the code rate of the adaptive code stream media content can be increased according to the characteristics of the adaptive code stream itself.

In the embodiment of the present invention, the media controller may obtain a play rate of the adaptive stream media content played by each media player, and when the playback rate of the adaptive stream media content played by a part of the media player is lower than the corresponding When the code rate threshold is used, the media controller can adjust the play rate of the adaptive code stream media content played by the plurality of media players, thereby achieving fair play and improving the user experience. FIG. 2 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention. On the basis of the embodiment shown in FIG. 1, as shown in FIG. 2, the method includes:

Step 201: The media controller separately obtains a play rate of the adaptive code stream media content played by each media player in the N media players, where N>2. The number of media players in the playing state in the network media system is N, that is, the network media system includes N media players that are playing adaptive code rate media content.

After the media controller obtains the play rate of the adaptive stream media content played by each media player, if the play rate of the M1 adaptive stream media content is lower than the corresponding first code rate threshold , and M1 < N, the media controller can adjust the play rate of the adaptive code stream media content played by the K media players, Ml KN; the following describes the adjustment process.

Step 202: If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, the media controller is configured to play the N adaptive code stream media content. The total bandwidth and the description information of each adaptive code stream media content are assigned corresponding play rate rates for the adaptive code stream media content played by the K media players.

The first rate threshold corresponding to the adaptive stream media content played by each media player is based on the device capability information of each media player and the adaptive stream media content played by each media player. The description of the information was obtained. When the play rate of a certain media player playing an adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, the media player plays the play effect of the adaptive code stream media content. Preferably. For example: the adaptive code stream media content a corresponds to a file with code rates of f0, fl, f2, β, respectively, wherein the code rate values of f0, fl, f2, and f3 are sequentially increased; when the player A1 plays the adaptive code stream When the media content is al, in order to achieve a better effect, the code rate of the adaptive code stream media a is at least fl, that is, when the player Al plays the adaptive code stream media content a1, the first code rate threshold is f. 1; When the player A2 plays the adaptive code stream media content al, in order to achieve a better effect, the code rate of the adaptive code stream media content a is at least f2, that is, when the player A2 plays the adaptive code stream media content. The first code rate threshold is f2; because the device capabilities of the player A1 and the player A2 are different, the two first code rate thresholds are different.

It should be noted that the first rate threshold may be obtained by the media controller in real time, or may be pre-stored in the record table and obtained by the media controller.

The playback code rate of the adaptive stream media content played by the partial media player is lower than Corresponding to the first rate threshold, the media controller may play the content for each media player according to the total bandwidth used for playing the adaptive stream media content and the description information of each adaptive stream media content. The code rate corresponding to the code stream media content is allocated, so that the adaptive code stream media content played by each media player can achieve a better playback effect.

In a specific implementation manner, the media controller plays the adaptive code stream for each media player according to the total bandwidth for playing the N adaptive code stream media content and the description information of each adaptive code stream media content. When the media content is assigned a corresponding play rate, the play rate is allocated according to the following rules 1 and 2:

The first transmission rate of the adaptive code stream media content played by the allocated N media players is less than or equal to the total bandwidth of the N adaptive media stream media content.

In a network media system, the total bandwidth for playing the adaptive code stream media content is fixed, so the sum of the transmission code rates of the adaptive code stream media content played by each media player after allocation cannot be greater than the above total bandwidth. .

The second step is that if the sum of the first rate thresholds of the adaptive stream media content played by the N media players is less than or equal to the total bandwidth of the content used for playing the adaptive stream media, the allocated N The play rate of the adaptive code stream media content played by the media players is greater than or equal to the corresponding first code rate threshold; if the first code rate gate of the adaptive code stream media content played by the N media players The sum of the limit values is greater than the total bandwidth for playing the N adaptive code stream media content, and the play code rates of the adaptive code stream media content played by the allocated N media players are respectively greater than or equal to corresponding The second rate threshold.

The second rate threshold corresponding to the adaptive stream media content played by each media player is obtained according to device capability information of each media player and description information of each adaptive stream media content. The first code rate threshold corresponding to the adaptive stream media content played by each media player is greater than the second code rate threshold.

It should be noted that the first code rate threshold refers to: a code rate required for the adaptive code stream media content played by the media player in order to achieve a better playback effect; the second code rate threshold value refers to Yes: When the first rate threshold cannot be met, the code required for the adaptive stream media content played by the media player is to achieve a viewable playback effect (less than the first rate threshold). Further, under the premise of satisfying the rules 1 and 2, when there are multiple allocation schemes, in order to achieve better results, the sum of the transmission rate of the adaptive stream media content played by the N media players may be selected. The largest distribution scheme.

Step 203: The media controller sends a code rate adjustment command to the media server according to a play rate that is allocated for the adaptive code stream media content played by each media player, so that the media server sends the media server to each media player. The transmit code rate is the adaptive stream media content of the assigned transport rate.

Step 204: After receiving the code rate adjustment command sent by the media controller, the media server sends, to each media player, an adaptive code stream media content whose code rate is a transmission code rate allocated by the media controller.

In the embodiment of the present invention, the media controller may obtain a play rate of the adaptive stream media content played by each media player, and when the playback rate of the adaptive stream media content played by a part of the media player is lower than the corresponding The media controller can adjust the play rate of the adaptive code stream media content played by the plurality of media players. Specifically, the media controller can describe the information according to the total bandwidth and the adaptive code stream media content. A suitable playback bit rate is allocated for the adaptive stream media content played by each media player, thereby achieving fair play and improving the user experience. Another adjustment mode will be specifically described below by way of the embodiment described in FIG.

FIG. 3 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention. On the basis of the embodiment shown in FIG. 1, as shown in FIG. 3, the method includes:

Step 301: The media controller separately obtains a play rate of the adaptive code stream media content played by each media player in the N media players, where N>2; if the M1 pieces of the adaptive code stream media If the play rate of the content is lower than the corresponding first rate threshold, and M1 < N, step 302 is performed; if the play rate of the M1 pieces of the adaptive stream media content is lower than the corresponding first The code rate threshold, and M1 = N, then step 306 is performed.

The number of media players in the playback state of the network media system is N, that is, the network media system includes N media players that are playing adaptive code rate media content.

After the media controller obtains the play rate of the adaptive code stream media content played by each media player, if the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, JL MKN, the media controller can adjust the play rate of the adaptive code stream media content played by the K media players, KN; the following describes the adjustment process.

Step 302: The media controller requests the media server to improve the quality of service level of the data packet corresponding to the adaptive code stream media content of the M1 play rate that is lower than the corresponding first rate threshold, so that the M1 is The data packets corresponding to the adaptive code stream media content whose play rate is lower than the corresponding first code rate threshold are preferentially sent to the corresponding media player, and the K adaptive code stream media content is caused. The play rate is adjusted.

When the media server sends the data message corresponding to the adaptive code stream media content to the plurality of media players, the media server may send the data message to the media player through the gateway; when the gateway forwards the data message to the multiple media players Priority is given to forwarding data packets with a high Quality of Service (QoS) level. Therefore, after the media controller requests the media server to increase the QoS level of the data packet corresponding to the adaptive stream media content played by a media player (for example, the media player A), the gateway preferentially forwards the data packet. The data packets sent to other media players may cause a certain degree of blocking, causing other media players to think that the network bandwidth is insufficient. According to the DASH technology policy, other media players automatically request a lower rate data report from the media server. The saved network bandwidth can be used by the media player A to apply for a higher rate data packet, so that the playback rate of the multiple adaptive stream media content can be adjusted.

In a specific embodiment, N = 2 in this embodiment.

It should be noted that, the data packet corresponding to the M1 adaptive code stream media content is improved. The QoS level is equivalent to reducing the QoS level of data packets corresponding to other adaptive code stream media content. Therefore, in a specific implementation, in step 302, the QoS level of the data packet corresponding to the content of the other adaptive code stream media may be reduced, so as to improve the data packet corresponding to the M1 adaptive code stream media content. QoS level.

After step 302, step 303 may also be included.

Step 303: The media controller acquires a play rate of each of the adaptive code stream media content. If the play rate of each of the adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, step 304 is performed. If the sum of the first rate thresholds corresponding to the N adaptive stream media content is greater than the total bandwidth for playing the N adaptive stream media content, step 305 is performed.

Step 304: The media controller requests the media server to restore the quality of service level of the data packet corresponding to the content stream media content of the improved service quality level, and ends, or repeats step 301.

After the media controller adjusts the QoS level of the data packet, if the play rate of each adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, the adjustment may be stopped; when the adjusted QoS level After being restored, the QoS levels of all data packets are the same. At this time, the gateway forwards the data packets according to the received sequence, so that the playback bit rate of each adaptive code stream media content will not be adjusted.

Step 305: The media controller requests the media server to resume the improved quality of service level when the playback code rate of the adaptive code stream media content that is not improved by the service quality level is adjusted to be equal to the corresponding first code rate threshold. The quality of service level of the data message corresponding to the adaptive code stream media content.

If the sum of the first rate thresholds corresponding to the N adaptive stream media content is greater than the total bandwidth for playing the N adaptive stream media content, the playback of each adaptive stream media content cannot be adjusted. The code rate is greater than or equal to the corresponding first rate threshold. In this case, when the play rate of the adaptive code stream media content with good original playback effect is adjusted to the corresponding first code rate threshold, the adjustment is stopped. Among them, the adaptive stream media content that is not improved in QoS level is the original The adaptive code stream media content with good playback effect, that is, the adaptive code stream media content whose pre-adjustment play rate is greater than or equal to the corresponding first code rate threshold.

After step 305, it may end, or step 301 may be repeated.

Step 306: The media controller determines whether the play rate of each of the adaptive code stream media content is lower than a corresponding second code rate threshold; if the play rate of the M2 adaptive code stream media content is lower than the corresponding The second code rate threshold, and M2 < N, then step 307 is performed. Among them, Ml and M2 may be the same or different. In a specific embodiment, N = 2 in this embodiment.

Step 307: The media controller requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second code rate threshold, so that the play The data message corresponding to the adaptive code stream media content whose code rate is lower than the corresponding second code rate threshold value is preferentially sent to the corresponding media player, and the K adaptive code stream media content is played. The code rate is adjusted.

Step 308: The media controller acquires a play rate of each of the adaptive code stream media content. If the play rate of each of the adaptive code stream media content is greater than or equal to a corresponding second code rate threshold, executing Step 309: If the sum of the second code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the total bandwidth of the N pieces of adaptive code stream media content, step 310 is performed.

Step 309: The media controller requests the media server to restore the quality of service level of the data packet corresponding to the adaptive code stream media content of the improved quality of service level, and ends, or repeats step 306.

Step 310: The media controller requests the media server to resume the improved quality of service level when the play rate of the adaptive code stream media content that is not improved by the service quality level is adjusted to be equal to the corresponding second code rate threshold. The quality of service level of the data message corresponding to the adaptive code stream media content.

It should be noted that the adjustment process of step 307-step 310 is similar to the adjustment process of step 302-step 305, except that the code rate threshold value as the criterion for judgment is different. In the embodiment of the present invention, the media controller may obtain a play rate of the adaptive code stream media content played by each media player, and when the playback code rate of the adaptive code stream media content played by some or all of the media players is lower than When the corresponding code rate threshold is used, the media controller may adjust the play rate of the adaptive code stream media content played by the plurality of media players. Specifically, the media controller may partially adjust the data of the adaptive code stream media content. The QoS level of the message is used to adjust the play rate of the adaptive code stream media content, thereby achieving fair play and improving the user experience. The embodiments of the present invention are exemplified below with reference to FIG. 4 and FIG. 5.

FIG. 4 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention. This embodiment uses N=2 as an example for description. As shown in FIG. 4, the method includes:

Step 401: The digital media player DMR1 (Digital Media Renderer) acquires the media data of the adaptive stream media content Media#1 from the digital media server (DMS) and plays it on the DMR1.

DMS, digital media controller DMC, two digital media players DMR1 and DMR2 belong to the same subnet in the network system. These devices can be interconnected, and all data packets sent and received by the above devices need to pass through the gateway. Forwarding, that is, the DMS and the DMR transmit data packets through the gateway.

The DMR1 initiates a media transmission session request to the DMS, and receives a Media Presentation Description (MPD) file corresponding to the adaptive code stream media content Media#1 that the DMS sends to the DMR1, and the MPD file is described. Media data. After receiving the MPD file of the media content Media#1, the DMR1 evaluates the current network bandwidth status according to the traditional adaptive code stream processing method, and selects a media file corresponding to the code rate suitable for the current network condition transmission in the MPD file. And requesting the DMS to correspond to the fragment data of the media file corresponding to the code rate, and the DMS sends the requested fragmentation data to the DMR1 and plays it on the DMR1. The fragment data is equivalent to the data packet in the foregoing embodiment; the MPD file is equivalent to the media content description information in the foregoing embodiment. Step 402: The DMR2 acquires the media data of the adaptive code stream media content Media#2 from the DMS, and plays the data on the DMR2.

Step 402 is similar to the process of step 401 and does not limit the order of steps 401 and 402.

Step 403: The Digital Media Controller (DMC) sends a request to the DMS to obtain the MPD file of the media content Media#1 and the MPD file of the Media#2 from the DMS.

Step 404: The DMR1 and the DMR2 calculate the code rate threshold values of the media content played by the respective media players according to the device capability information of the respective players and the description information of the played media contents Media#1 and Media#2, and the The rate threshold is reported to the DMC.

This embodiment also does not limit the sequence of steps 403 and 404.

The device capability information may include screen resolution information of the player. If the code rate of the adaptive code stream media content is equal to or higher than the corresponding code rate threshold, the adaptive code stream media content is suitable for playing on the corresponding player, and a better visual experience can be obtained. effect. For example: There are two digital media players DMR1 and DMR2 in the network system, which play the adaptive stream media content movie A and movie K respectively. Among them, DMR1 is a smart phone with a screen resolution of 800 x 600, DMR2 is a high-definition TV, and its screen resolution is 1920 X 1080; the description of movie A is the stream segmentation provided by movie A. The code rate is 2.2Mbps, 1.6Mbps, 1.2Mbps, 800Kbps, 400Kbps, 200Kbps. The description of movie K is that the code rate provided by movie K is 1.8Mbps, 1.5Mbps, 1.1Mbps, 800Kbps, 500Kbps. 200Kbps. According to the screen resolution of two media players of DMR1 and DMR2, and the media content description information of two adaptive stream media contents movie A and movie K, it can be calculated that the code rate threshold of DMR1 when playing movie A is 800Kbps. The DMR2 has a code rate threshold of 1.5 Mbps when playing movie K, and reports these thresholds to the DMC. Specifically, the code rate threshold value may be obtained according to a correspondence between different code rates in the description information and a resolution of the media content screen. The code rate threshold value in this embodiment is equivalent to the first code rate threshold value in the above embodiment. Step 405: The DMC obtains a play rate of the media content played in the DMR1 and the DMR2, and determines whether the play rate of the media content played in the DMR1 and the DMR2 is less than a corresponding code rate threshold, if played in a certain player. If the play rate of the media content is less than the corresponding code rate threshold, step 406 is performed.

Step 406: The DMC calculates, according to the total bandwidth for playing, the description information of the media content, and the code rate threshold, the specific operation steps for calculating the optimal allocation code of the adaptive code stream media content played by the two media players. The DMC extracts the code rate threshold of the movie A in the DMR1 from the MPD file of the media content movie A according to the code rate thresholds when the media contents movie A and movie K are respectively played by the two media players DMR1 and DMR2. At a nearby code rate, the code rate near the code rate threshold of the movie K played in DMR2 is extracted from the MPD file of the media content movie K, and arranged and combined to constitute all possible solutions. Then filter according to the principles listed below to calculate the optimal rate allocation scheme. The specific screening principles are as follows:

(1) The sum of the code rates of the adaptive stream media content played by the two media players after the adjustment is not greater than the total bandwidth for playing;

(2) After the condition (1) is satisfied, the code rate of the adaptive code stream content played by the two media players after the adjustment is greater than or equal to the code rate threshold of the corresponding player;

(3) A set of allocation schemes having the highest sum of the code rates of the adaptive stream media content played by the two media players after the conditions (1) and (after the adjustment) are satisfied.

For example, in this embodiment, the selected movie A has a code rate of 1.2 Mbps and 800 Kbps, and the selected movie K has a code rate of 1.8 Mbps and 1.5 Mbps. After arranging and combining and satisfying conditions (1) and (2), there are three distribution schemes as follows:

< 1 >mo vie A: 1.2Mbps; movie K: 1.5Mbps;

<2>movie A: 800Kbps; movie K: 1.8Mbps;

<3>movie A: 800Kbps; movie K: 1.5Mbps; Then, according to the condition (3), the best distribution scheme is obtained as movie A: 1.2 Mbps and movie K: 1.5 Mbps.

Step 407: According to the optimal allocation scheme calculated by the DMC, the DMC sends a request to the DMS, so that the DMS distributes the stream fragmentation of the adaptive stream media content to the DMR1 and the DMR2 according to the code rate in the optimal allocation scheme.

In the embodiment of the present invention, each media player can report the screen resolution information of the player, the description information of the played adaptive code stream media content, and the code rate threshold value of the player to the DMC, and the DMC calculates the most based on the above information. An excellent rate allocation scheme is provided, and a request is sent to the DMS according to the scheme, and the DMS is requested to send the media code stream of the code rate indicated by the optimal code rate allocation scheme to each media player, thereby achieving fair play and improving the user experience. FIG. 5 is a flowchart of another method for playing multiple adaptive code stream media content according to an embodiment of the present invention. In this embodiment, N=2 is taken as an example. As shown in FIG. 5, the method includes:

Step 501: The DMR1 acquires the media data of the adaptive stream media content Media#1 from the DMS, and plays the data on the DMR1.

Step 502: The DMR2 acquires the media data of the adaptive stream media content Media#2 from the DMS, and plays the data on the DMR2.

Step 501 and step 502 are the same as steps 401 and 402 in the embodiment shown in FIG. Step 503: The DMC acquires device capability information of the DMR1.

The DMC calls the AVT::GetDeviceCapabilities() command to DMR1 to inform DMR1 of the device capability information of its device. The DMR1 sends a response message according to the request command of the MDMC. The response message includes device capability information of the DMR1, which may include the screen size of the device, the resolution size, and the supported audio and video codec format.

Step 504: The DMC acquires device capability information of the DMR2.

Step 504 is similar to step 503. This embodiment does not limit the sequence of steps 503 and 504. Step 505: The DMC acquires state information of the media content played by the DMR1 and the DMR2, respectively. The DMC calls the AVT::GetTransportInfo() command to DMR1 and DMR2 to notify DMR1 and DMR2 to return status information of the media content played on their device. The DMR1 and the DMR2 send a response message according to the request command of the DMC. The response message includes the current play status information of the media Media#1 and Media#2 played by the DMR1 and the DMR2, and may include the name of the played media, the media format, and the transmission code. Rate and other information.

It should be noted that step 505 may be before step 503 or after step 503.

Step 506: The DMR1 and the DMR2 calculate the first code rate of the content of the adaptive code stream media by the respective media player according to the device capability information of the respective player, the description information of the played adaptive code stream media content, and the playing state information. The threshold value (the ideal playback rate) and the second rate threshold (tolerate the playback rate), and the first rate threshold and the second rate threshold are 4 艮 to DMC.

In this embodiment, there are two digital media players DMR1 and DMR2 in the home network, and the adaptive stream media contents movie A and movie K are respectively played. Among them, DMRl is a smart phone with a screen resolution of 800 X 600, DMR2 is a high-definition TV with a screen resolution of 1920 X 1080; the description of movie A is the stream segmentation provided by movie A. The code rate is 2.2Mbps, 1.6Mbps, 1.2Mbps, 800Kbps, 400Kbps, 200Kbps. The description information of movie K is that the code rate of the stream stream provided by movie K is 1.8Mbps, 1.5Mbps, 1.1Mbps, 800Kbps, 500Kbps, 200Kbps. According to the screen resolution of two media players of DMR1 and DMR2, and the media content description information of two adaptive stream media contents movie A and movie K, the first code of DMR1 and DMR2 when playing movie A and movie K is calculated. The thresholds are respectively 800 Kbps and 1.5 Mbps, and the second rate thresholds are 200 Kbps and 500 Kbps, respectively, and the first rate threshold and the second rate threshold are reported to the DMC.

Step 507: The DMC judges according to the obtained first code rate threshold value, the second code rate threshold value, and the state information of the played media of the adaptive code stream media content played by different media players. Whether to adjust the code rate is required; if adjustment is needed, step 508 is performed.

For the specific judgment process, refer to FIG. 6. As shown in FIG. 6, first, the DMC acquires a first code rate threshold value and a second code rate threshold value corresponding to the content of the played adaptive code stream media, and periodically acquires each The playing status information of the media content, including the playing rate information of the media content. After the DMC obtains the above information, the playback status information of the media is compared with the code rate threshold, and the code rate of the adaptive code stream played on each media player is adjusted according to the situation:

(1) The code rate of the media stream played by the player is higher than the corresponding first rate threshold;

(2) The code rate of the media stream played by the partial player is lower than the corresponding first code rate threshold;

(3) The code rate of the media stream played by the player is lower than the corresponding first rate threshold.

For case (1), the code rate of the adaptive stream media content played by all players is higher than the corresponding first rate threshold, indicating that the media content played by all players can give the user the desired vision. Experience, so this situation does not need to adjust the code stream, you can play as usual. For case (2), the code rate of the adaptive stream media content played by some players is lower than the corresponding first code rate threshold, indicating that the media content played by the player does not allow the user to obtain a better vision. Experience, so adjustments need to be made to increase the bitrate of the media stream below its first rate threshold above its corresponding first rate threshold. However, during the adjustment process, the code rate of those playing media streams higher than the corresponding first rate threshold may be lowered, which may be lower than the corresponding first rate threshold. Therefore, if the code rate of all the playing media streams after the adjustment cannot be satisfied is higher than the corresponding first rate threshold, the media codes that are higher than the first rate threshold should be guaranteed. After the stream is adjusted, the code rate is not lower than the corresponding first rate threshold. For the case (3), the adaptive stream media content played by all players does not allow the user to obtain a more ideal visual experience. In this case, the DMC checks whether the media stream of the player plays a higher bit rate than the media stream. Corresponding second rate threshold, if yes, playing as usual; if not, increasing the bit rate of the media stream lower than the corresponding second rate threshold to ensure that all played media streams are The code rate is higher than the corresponding second rate threshold.

In this embodiment, the adaptive stream media content currently played by the media player DMR1 The code rate of Movie A is 2.2 Mbps, and the code rate of the adaptive code stream media content of the media player DMR2 is 500 Kbps, and the first rate threshold and the second code rate threshold of DMR1 and DMR2, respectively. Comparing the values, it can be concluded that this situation belongs to the situation (2). It is necessary to increase the code rate of the media player K played by DMR2, which is higher than the first rate threshold of DMR2 by 1.5 Mbps, but the premise is that after adjustment The code rate of the media Movie A played on the DMR1 cannot be lowered below the first code rate threshold of 800 Kbps of DMR1.

The following is the specific adjustment process.

Step 508: The DMC requests the DMS to increase the quality of service (QoS) level of the data packet sent to the DMR2, and after receiving the command, the DMS increases the differential service code point in the IP header of the fragmented stream message sent to the DMR2 ( The value of the DSCP field increases the QoS level of the data message sent to DMR2.

The Differentiated Services Code Point (DSCP) field is a field in the IP header that identifies the Quality of Service (QoS) priority of the message. The larger the value of the DSCP field, the higher the QoS priority level, and the gateway will preferentially process packets with a high QoS class. In this way, when the QoS level of the data packet of the DASH media fragment sent by the DMS to the DMR2 is higher than the QoS level of the data packet sent to the DMR1, the gateway preferentially forwards the media fragment sent to the DMR2 during processing. The media stream sent to DMR1 will cause a certain degree of blocking, which causes DMR1 to think that the network bandwidth is insufficient. According to the DASH technology policy, DMR1 automatically requests the lower-rate media fragment from the DMS, so that the saved bandwidth can be used for DMR2. To apply for higher-rate media segments, which narrows the gap between the two chip rates.

Step 509: The DMC monitors the status information of the played media in real time. When it is determined that the DASH media content in the network system is played fairly, the DMC sends a request to the DMS to restore the QoS level of the original data message sent to the DMR2, so that the DMS sends the DMS. The QoS level recovery for the data of DMR1 and DMR2 is the same.

In the embodiment of the present invention, the media controller may obtain a play rate of the adaptive stream media content played by each media player, and when there are some or all media players playing the adaptive code stream media When the play rate of the volume content is lower than the corresponding code rate threshold, the media controller may adjust the play rate of the adaptive stream media content played by the plurality of media players; specifically, the media controller may partially adjust The QoS level of the data message of the adaptive code stream media content is adjusted to adjust the play rate of the adaptive code stream media content, thereby achieving fair play and improving the user experience. FIG. 6 is a schematic diagram of a media controller according to an embodiment of the present invention. As shown in FIG. 6, the media controller 600 includes: an information acquiring unit 61 and an adjusting unit 63.

The information obtaining unit 61 is configured to respectively acquire a play rate of the adaptive code stream media content played by each media player in the N media players, where N>2.

The adjusting unit 63 is configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, adjust the adaptive play of the K media players The play rate of the code stream media content, M1 KN; wherein, the first code rate threshold corresponding to the adaptive code stream media content played by each media player is based on the device capability information of each media player and each The description information of the adaptive code stream media content played by the media player is obtained.

Further, in another embodiment, the adjusting unit 63 may include: a code rate allocation module 631 and an adjustment triggering module 633; or, the adjusting unit 63 may include: a first requesting module 635; or, the adjusting unit 63 may include: The rate allocation module 631 and the adjustment trigger module 633, and the first request module 635.

The rate allocation module 631 is configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, according to the N used for playing The total bandwidth of the adaptive code stream media content and the description information of each of the adaptive code stream media content are allocated corresponding play rate rates for the adaptive code stream media content played by the K media players.

The adjustment triggering module 633 is configured to send a code rate adjustment command to the media server according to the play rate of the adaptive code stream media content played by the code rate allocation module 631 for the K media players, so that the The media server sends the code rate to the K media players. The adaptive code stream media content of the assigned transmission rate.

The first requesting module 635 is configured to: if the play rate of the M1 pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, request the media server to increase the M1 The QoS level of the data packet corresponding to the code stream media content is such that the M1 message data rate corresponding to the adaptive code stream media content of the corresponding first code rate threshold is Priority is sent to the corresponding media player, and the play rate of the K adaptive code stream media content is adjusted; wherein, N=2, K=2.

Further, the code rate allocation module 631 is configured to play the adaptive code for the media player according to the total bandwidth of the two pieces of adaptive code stream media content and the description information of each of the adaptive code stream media contents. When the streaming content is assigned to the corresponding playback rate, the playback rate is assigned according to the following rules:

And if the sum of the first rate thresholds of the adaptive stream media content played by the one of the media players is less than or equal to the total bandwidth of the content for playing the adaptive stream media, The play rate of the adaptive stream media content played by the media player is greater than or equal to the corresponding first rate threshold; if the content of the adaptive stream media played by the media player is the first The sum of the code rate thresholds is greater than the total bandwidth used for playing the content of the adaptive code stream media, and the played bit rate of the adaptive code stream media content played by the allocated media players Respectively greater than or equal to the corresponding second rate threshold;

Further, the media controller 600 may further include: a determining module 65 and a second requesting module

67. The determining module 65 is configured to determine, if the play rate of the N pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, determine a play code of each of the adaptive code stream media content Whether the rate is lower than the corresponding second rate threshold; the second rate threshold corresponding to the adaptive stream media content played by each media player is based on the device capability information of each media player and The description information of each adaptive code stream media content is obtained; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold; the second request module 67. If the determining module 65 determines that the play rate of the M2 pieces of the adaptive code stream media content is lower than the corresponding second code rate threshold, and M2 < N, requesting the media server to increase the M2 And playing a service quality level corresponding to the data packet corresponding to the adaptive code stream media content of the corresponding second rate threshold, so that the play rate is lower than the corresponding second rate threshold. The number corresponding to the adaptive stream media content Packets are preferentially transmitted to the corresponding media player, and so that the N adaptive codebook bit rate of streaming media content play is adjusted; where, N = 2.

Further, the media controller may further include: a level recovery unit 69.

Level recovery unit 69 is used to:

After the first requesting module 635 requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M1 play rate lower than the corresponding first rate threshold, if each And the playing code rate of the adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, and then requesting the media server to recover the data packet corresponding to the adaptive code stream media content of the improved quality of service level. Quality of service level; or

After the first requesting module 635 requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the corresponding first rate threshold value, The sum of the first code rate thresholds corresponding to the adaptive code stream media content is greater than the total bandwidth used for playing the N adaptive code stream media content, and is not improved by the improved quality of service level When the play rate of the code stream media content is adjusted to be equal to the corresponding first code rate threshold, requesting the media server to restore the improved code quality level in the adaptive code stream media The quality of service level of the corresponding data message; or

After the second requesting module 67 requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second code rate threshold, If the play rate of the adaptive code stream media content is greater than or equal to the corresponding second code rate threshold, requesting the media server to recover the data message corresponding to the adaptive code stream media content of the improved quality of service level. Quality of service level; or

After the second requesting module 67 requests the media server to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second rate threshold, if the N quality is The sum of the second rate thresholds corresponding to the adaptive code stream media content is greater than the total bandwidth used to play the N adaptive code stream media content, and the adaptive code is not improved in the quality of service level. When the play rate of the streaming media content is adjusted to be equal to the corresponding second rate threshold, the media server is requested to restore the quality of service level of the data packet corresponding to the adaptive stream media content of the improved quality of service level. FIG. 7 is a schematic diagram of another media controller according to an embodiment of the present invention. As shown in FIG. 7, the media controller 700 includes:

One or more processors 71;

Memory 72;

One or more programs, wherein the one or more programs are stored in the memory 72 and configured to be executed by the one or more processors 71, the one or more programs comprising: acquiring N An instruction to play the code rate of the adaptive stream media content played by each media player in the media player, N > 2;

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, adjusting the playback of the adaptive code stream media content played by the K media players The code rate command, M1 KN; wherein, the first code rate threshold corresponding to the adaptive code stream media content played by each media player is based on device capability information of each media player And the description information of the adaptive stream media content played by each media player is obtained.

Further, if the play rate of the M1 pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold value, and M1 < N, the adaptive code played by the K media players is adjusted. Instructions for playing bit rate of streaming media content, including:

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, according to the total content for playing the N adaptive code stream media content a description of the bandwidth and the content of each of the adaptive code stream media, and an instruction for assigning a corresponding play rate to the adaptive stream media content played by the K media players;

Transmitting a code rate adjustment command to the media server according to a play rate allocated for the adaptive code stream media content played by the K media players, so that the media server sends a code rate to the K media players The instruction of the adaptive code stream media content of the assigned transmission rate.

Further, the adaptive code stream media played by the K media players according to the total bandwidth for playing the N adaptive code stream media contents and the description information of each adaptive code stream media content When content rate corresponding to the play rate, the play rate is allocated according to the following rules: the sum of the transmission code rates of the adaptive code stream media content played by the allocated N media players is less than or equal to the N for playing The total bandwidth of the adaptive code stream media content;

The second rate threshold corresponding to the adaptive stream media content played by each media player is obtained according to device capability information of each media player and description information of each adaptive stream media content; The first code corresponding to the adaptive stream media content played by the media player The rate threshold is greater than the second rate threshold.

If the play rate of the M1 adaptive code stream media content is lower than the corresponding first code rate threshold, and M1 < N, requesting the media server to improve the M1 adaptive code stream media content The service quality level of the data packet is such that the data message corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first rate threshold is preferentially sent to the corresponding media player. And causing the instruction code rate of the K adaptive code stream media contents to be adjusted; wherein, N=2, K=2.

Further, the one or more programs further include:

If the play rate of the N pieces of the adaptive code stream media content is lower than the corresponding first code rate threshold, determining whether the play rate of each of the adaptive code stream media contents is lower than the respective Corresponding second code rate threshold instruction; the second code rate threshold corresponding to the adaptive code stream media content played by each media player is based on device capability information of each media player and each self Obtaining the description information of the content of the code stream media; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold;

If the play rate of the M2 adaptive code stream media content is lower than the corresponding second code rate threshold, and M2 < N, requesting the media server to increase the M2 play rate is lower than the corresponding a quality of service level of the data packet corresponding to the adaptive code stream media content of the second code rate threshold, so that the playback code rate is lower than the corresponding code stream media content corresponding to the second code rate threshold The data message is preferentially sent to the corresponding media player, and the instruction that the play rate of the N adaptive code stream media content is adjusted; wherein N=2.

Further, the one or more programs further include:

The media controller provided in the embodiment shown in FIG. 6 or FIG. 7 is used to implement the method in the foregoing method embodiments. For the specific working principle and workflow, refer to the foregoing method embodiments.

In the embodiment shown in FIG. 6 or FIG. 7, the media controller can acquire each media player to play. The playback code rate of the adaptive code stream media content, when the playback code rate of the adaptive code stream media content played by a part of the media player is lower than the corresponding code rate threshold, the media controller can adjust the multiple media play The playback code rate of the adaptive code stream media content played by the device; specifically, the media controller may allocate the adaptive code stream media content for each media player according to the total bandwidth and the description information of the adaptive code stream media content. For a suitable playback rate, the media controller can adjust the playback rate of the adaptive stream media content by partially adjusting the QoS level of the data packet of the adaptive stream media content, thereby achieving fair play and improving the user. Experience. FIG. 8 is a schematic diagram of a network media system according to an embodiment of the present invention. As shown in FIG. 8, the network media system includes: a media server 81, a media controller 83, and N media players 85, N>2.

The media player 85 is configured to obtain the adaptive code stream media content from the media server 81, and play the acquired adaptive code stream media content.

The media server 81 is configured to store the adaptive code stream media content, and provide the media player 85 with description information of the adaptive code stream media content and the adaptive code stream media content.

The media controller 83 is configured to separately acquire a play rate of the adaptive stream media content played by each media player of the N media players 85; if the playback rate of the M1 media stream media content is low At respective first code rate thresholds, and M1 < N, the play rate of the adaptive code stream media content played by the K media players is adjusted, M1 KN.

The media player 85 is further configured to obtain, according to the device capability information of the media player 85 and the description information of the adaptive code stream media content played by the media player, the corresponding content of the adaptive code stream media content played by the media player 85. A code rate threshold.

Further, when the media controller 83 adjusts the play rate of the adaptive stream media content played by the K media players, the media controller 83 is specifically configured to:

The media controller 83 plays the K media players 85 according to the total bandwidth for playing the N adaptive code stream media contents and the description information of each adaptive code stream media content. The adaptive code stream media content is allocated corresponding to the play rate;

Transmitting a rate adjustment command to the media server 81 according to a play rate allocated for the adaptive stream media content played by the K media players 85 to cause the media server 81 to play the K media. The processor 85 transmits the adaptive stream media content of the assigned transmission rate.

Further, the media controller 83 adaptively plays the K media players 85 according to the total bandwidth for playing the N adaptive code stream media contents and the description information of each of the adaptive code stream media contents. When the code stream media content is assigned a corresponding play rate, the play rate is assigned according to the following rules:

If the media controller requests the media server to increase the M1 data packets corresponding to the adaptive code stream media content whose play rate is lower than the corresponding first rate threshold. a quality of service level, such that the data message corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first rate threshold is preferentially sent to the corresponding media player, and The play rate of the K adaptive code stream media content is adjusted; wherein, N=2, K=2;

If the M1 is Ν, the media controller determines whether the play rate of each of the adaptive code stream media content is lower than a corresponding second code rate threshold; if the two adaptive code streams are The play rate of the content is lower than the corresponding second rate threshold, and Μ2 < Ν, requesting the media server to increase the 播放2 play rate lower than the corresponding second rate threshold Adapting the service quality level of the data packet corresponding to the code stream media content, so that the data packet corresponding to the adaptive code stream media content whose play rate is lower than the corresponding second code rate threshold is preferentially sent to the corresponding In the media player, and the playback rate of the content of the adaptive code stream media is adjusted; wherein, Ν=2;

Further, the media controller 83 requests the media server 81 to improve the quality of service of the data packet corresponding to the adaptive code stream media content whose M1 play rate is lower than the corresponding first rate threshold. After the level, it is also used to:

And if the play rate of each of the adaptive code stream media content is greater than or equal to a corresponding first code rate threshold, the media controller requests the media server to recover an adaptive code of the improved quality of service level. a quality of service level of the data message corresponding to the streaming media content; or, if the sum of the first code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the N adaptive code for playing The total bandwidth of the streaming media content is requested to restore the improved quality of service when the playback code rate of the adaptive stream media content that is not improved by the quality of service level is adjusted to be equal to the corresponding first rate threshold. The quality of service level of the data message corresponding to the level of adaptive code stream media content; After the media controller 83 requests the media server 81 to improve the quality of service level of the data message corresponding to the adaptive code stream media content of the M2 play rate lower than the corresponding second code rate threshold, Also used for:

And if the playback code rate of each of the adaptive code stream media content is greater than or equal to a corresponding second code rate threshold, requesting the media server to restore the corresponding code stream media content corresponding to the improved quality of service level. a quality of service level of the data message; or, if the sum of the second code rate thresholds corresponding to the N pieces of the adaptive code stream media content is greater than the total amount of the media content for playing the N adaptive code streams The bandwidth is requested to request the media server to recover the adaptive code of the improved quality of service level when the play rate of the adaptive stream media content that is not improved by the quality of service level is adjusted to be equal to the corresponding second rate threshold. The quality of service level of the data message corresponding to the streaming media content.

The media controller, the media server, and the media player provided by the embodiments of the present invention are used to implement the methods in the foregoing method embodiments. For specific working principles and workflows, refer to the foregoing method embodiments.

In this embodiment, the media controller may obtain a play rate of the adaptive code stream media content played by each media player, and when a part of the media player plays the adaptive code stream media content, the play rate is lower than the corresponding The media controller can adjust the play rate of the adaptive code stream media content played by the plurality of media players. Specifically, the media controller can describe the information according to the total bandwidth and the adaptive code stream media content. And assigning an appropriate play rate to the adaptive stream media content played by each media player, or the media controller may adjust the adaptive code by partially adjusting the QoS level of the data message of the adaptive code stream media content. The playback rate of the streaming media content enables fair play and improves the user experience.

Through the description of the above embodiments, it will be apparent to those skilled in the art that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable medium including computer storage Storage medium and communication medium, wherein the communication medium includes any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. In addition, any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the fixing of the associated media. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

In conclusion, the above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

1. A method for playing multiple adaptive code streaming media contents, characterized by: obtaining the playback code rate of the adaptive code streaming media content played by each of N media players, N > 2;

If the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M1 < N, then adjust the playback of the adaptive code streaming media content played by K media players Code rate, M1 K N; Among them, the first code rate threshold value corresponding to the adaptive code streaming media content played by each media player is based on the device capability information of each media player and the data played by each media player. The description information of the adaptive code streaming media content is obtained.

2. The method according to claim 1, characterized in that if the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M 1 < N , then adjust the playback code rate of the adaptive code streaming media content played by K media players, including: If the playback code rate of the Ml adaptive code streaming media content is lower than the corresponding first code rate threshold , and M1 < N, then according to the total bandwidth used to play the N adaptive code stream media content and the description information of each adaptive code stream media content, is the adaptive code played by the K media players The playback bit rate corresponding to the distribution of streaming media content;

Send a code rate adjustment command to the media server according to the playback code rate assigned to the adaptive code streaming media content played by the K media players, so that the media server sends the code rate to the K media players. The allocated transmission bit rate for adaptive code streaming of media content.

3. The method according to claim 2, characterized in that, based on the total bandwidth used to play the N adaptive code streaming media contents and the description information of each adaptive code streaming media content, When allocating corresponding playback bitrates to the adaptive streaming media content played by K media players, the playback bitrates are allocated according to the following rules:

The sum of the transmission bit rates of the allocated adaptive code streaming media content played by the N media players is less than or equal to the total bandwidth used to play the N adaptive code streaming media content; If the sum of the first code rate threshold values of the adaptive code streaming media content played by the N media players is less than or equal to the total bandwidth used to play the adaptive code streaming media content, then the allocated The playback code rates of the adaptive code streaming media content played by the N media players are respectively greater than or equal to the corresponding first code rate threshold; if the first code rate of the adaptive code streaming media content played by the N media players If the sum of the code rate thresholds is greater than the total bandwidth used to play the N adaptive code stream media content, then the allocated playback code rate of the adaptive code stream media content played by the N media players are respectively greater than or equal to the corresponding second code rate threshold;

The second code rate threshold value corresponding to the adaptive code stream media content played by each media player is obtained based on the device capability information of each media player and the description information of each adaptive code stream media content; each The first code rate threshold value corresponding to the adaptive code streaming media content played by the media player is greater than the second code rate threshold value.

4. The method according to claim 1, characterized in that if the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M 1 < N , then adjust the playback code rate of the adaptive code streaming media content played by K media players, including: If the playback code rate of the Ml adaptive code streaming media content is lower than the corresponding first code rate threshold , and M1 < N, then the media server is requested to improve the service quality level of the data packets corresponding to the M1 adaptive code stream media contents, so that the M1 playback code rates are lower than the corresponding first code rate threshold The data packet corresponding to the adaptive code stream media content of the value is sent to the corresponding media player first, and the playback code rate of the K adaptive code stream media content is adjusted; where, N=2, K =2.

5. The method according to claim 4, wherein the request media server increases the datagrams corresponding to the M1 adaptive code stream media contents whose playback code rates are lower than the corresponding first code rate threshold. After determining the service quality level of the document, the method further includes:

If the playback code rate of each adaptive code stream media content is greater than or equal to the corresponding first code rate threshold, the media server is requested to restore the code corresponding to the adaptive code stream media content with an improved service quality level. Quality of service level of data packets; or If the sum of the first code rate threshold values corresponding to the N adaptive code streaming media contents is greater than the total bandwidth used to play the N adaptive code streaming media contents, then the service quality level is not improved. When the playback code rate of the adaptive code streaming media content is adjusted to be equal to the corresponding first code rate threshold value, request the media server to restore the service of the data packet corresponding to the adaptive code streaming media content with an improved service quality level. quality level.

6. The method according to claim 1, further comprising:

If the playback code rates of the N adaptive code streaming media contents are all lower than their corresponding first code rate thresholds, then determine whether the playback code rate of each of the adaptive code streaming media contents is lower than their respective corresponding first code rate thresholds. The second code rate threshold value; the second code rate threshold value corresponding to the adaptive code stream media content played by each media player is based on the device capability information of each media player and each adaptive code stream The description information of the media content is obtained; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold;

If the playback code rate of the M2 adaptive code streaming media contents is lower than the corresponding second code rate threshold, and M2 < N, then the media server is requested to increase the playback code rate of the M2 pieces below the corresponding second code rate threshold. The service quality level of the data packet corresponding to the adaptive code streaming media content with the second code rate threshold value, so that the playback code rate is lower than the corresponding data packet quality level corresponding to the adaptive code streaming media content with the corresponding second code rate threshold value. The data packet is sent to the corresponding media player with priority, and the playback code rate of the N adaptive code stream media content is adjusted; where, N=2.

7. The method according to claim 6, wherein the request media server increases the datagrams corresponding to the M2 adaptive code stream media contents whose playback code rates are lower than the corresponding second code rate threshold. After determining the service quality level of the document, the method further includes:

If the playback code rate of each adaptive code stream media content is greater than or equal to the corresponding second code rate threshold, the media server is requested to restore the code corresponding to the adaptive code stream media content with an improved service quality level. Quality of service level of data packets; or

If the sum of the second code rate threshold values corresponding to the N adaptive code streaming media contents is greater than the total bandwidth used to play the N adaptive code streaming media contents, then the service quality is not improved. When the playback code rate of the adaptive code streaming media content of the level is adjusted to be equal to the corresponding second code rate threshold value, the media server is requested to restore the data packet corresponding to the adaptive code streaming media content with an improved service quality level. Service quality level.

8. A media controller, characterized by including:

The information acquisition unit is used to obtain the playback code rate of the adaptive code streaming media content played by each of the N media players, N > 2;

Adjustment unit, used to adjust the adaptive codes played by K media players if the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M1 < N The playback code rate of streaming media content, M1 K N; where, the first code rate threshold value corresponding to the adaptive code streaming media content played by each media player is based on the device capability information of each media player and each The description information of the adaptive code streaming media content played by the media player is obtained.

9. The media controller according to claim 8, wherein the adjustment unit includes: a code rate allocation module and an adjustment trigger module, and/or a first request module;

The code rate allocation module is used to play the N according to The total bandwidth of the adaptive code streaming media content and the description information of each adaptive code streaming media content, and assign a corresponding playback code rate to the adaptive code streaming media content played by the K media players;

The adjustment trigger module is configured to send a code rate adjustment command to the media server according to the playback code rate allocated by the code rate allocation module to the adaptive code streaming media content played by the K media players, so that the The media server sends adaptive code streaming media content with a code rate of an allocated transmission code rate to the K media players;

The first request module is used to request the media server to increase the playback code rate of the M1 adaptive code streaming media content if it is lower than the corresponding first code rate threshold value, and M1 < N.

The service quality level of the data packets corresponding to the Ml adaptive code stream media content, so that the

Data packets corresponding to M 1 adaptive code stream media contents whose playback code rates are lower than the corresponding first code rate threshold are sent to the corresponding media players with priority, and the K adaptive code streams are The playback bit rate of the media content is adjusted; where, N=2, K=2.

10. The media controller according to claim 9, wherein the code rate allocation module determines the total bandwidth for playing the N adaptive code stream media contents and the description of each adaptive code stream media content. Information, when allocating the corresponding playback code rate for the adaptive code streaming media content played by the K media players, the playback code rate is allocated according to the following rules:

The sum of the transmission bit rates of the allocated adaptive code streaming media content played by the N media players is less than or equal to the total bandwidth used to play the N adaptive code streaming media content;

If the sum of the first code rate threshold values of the adaptive code streaming media content played by the N media players is less than or equal to the total bandwidth used to play the adaptive code streaming media content, then the allocated The playback code rates of the adaptive code streaming media content played by the N media players are respectively greater than or equal to the corresponding first code rate threshold; if the first code rate of the adaptive code streaming media content played by the N media players is If the sum of the code rate thresholds is greater than the total bandwidth used to play the N adaptive code streaming media content, then the allocated playback code rate of the adaptive code streaming media content played by the N media players are respectively greater than or equal to the corresponding second code rate threshold;

11. The media controller according to claim 8, further comprising: a judgment module and a second request module;

The determination module is configured to determine the playback rate of each adaptive code streaming media content if the playback code rate of the three adaptive code streaming media contents is lower than the corresponding first code rate threshold. Whether the code rate is lower than the corresponding second code rate threshold; the second code rate threshold corresponding to the adaptive code streaming media content played by each media player is based on the device capability information of each media player and the description information of each adaptive code stream media content; the first code rate threshold corresponding to the adaptive code stream media content played by each media player is greater than the second code rate threshold; The second request module is used to request media if the judgment module determines that the playback code rates of M2 adaptive code streaming media contents are lower than their corresponding second code rate thresholds, and M2 < N. The server improves the service quality level of the data packets corresponding to the M2 adaptive code streaming media contents whose playback code rates are lower than the corresponding second code rate threshold, so that the playback code rate is lower than the corresponding second code rate threshold. The data packets corresponding to the adaptive code stream media content with the code rate threshold value are sent to the corresponding media player with priority, and the playback code rate of the N adaptive code stream media content is adjusted; wherein, N =2.

12. The media controller according to claim 9 or 11, further comprising: a level recovery unit; the level recovery unit is used for:

After the first request module requests the media server to improve the service quality level of the data packets corresponding to the M1 adaptive code stream media content whose playback code rate is lower than the corresponding first code rate threshold, if each If the playback code rate of the adaptive code streaming media content is greater than or equal to the corresponding first code rate threshold, the media server is requested to restore the data message corresponding to the adaptive code streaming media content with an improved service quality level. service quality level; or

After the first request module requests the media server to improve the service quality level of the data packets corresponding to the M1 adaptive code stream media content whose playback code rate is lower than the corresponding first code rate threshold, if N If the sum of the first code rate threshold values corresponding to the adaptive code stream media content is greater than the total bandwidth used to play the N adaptive code stream media content, then the adaptive code stream without improving the service quality level When the playback code rate of the code stream media content is adjusted to be equal to the corresponding first code rate threshold value, request the media server to restore the service quality level of the data packet corresponding to the adaptive code stream media content whose service quality level is improved; or

After the second request module requests the media server to increase the service quality level of the data packets corresponding to the M2 adaptive code stream media content whose playback code rate is lower than the corresponding second code rate threshold, if each If the playback code rate of the adaptive code streaming media content is greater than or equal to the corresponding second code rate threshold, the media server is requested to restore the data message corresponding to the adaptive code streaming media content with an improved service quality level. service quality level; or After the second request module requests the media server to improve the service quality level of the data packets corresponding to the M2 adaptive code stream media content whose playback code rate is lower than the corresponding second code rate threshold, if N If the sum of the second code rate threshold values corresponding to the adaptive code stream media content is greater than the total bandwidth used to play the N adaptive code stream media content, then the adaptive code stream without improving the service quality level When the playback code rate of the stream media content is adjusted to be equal to the corresponding second code rate threshold, the media server is requested to restore the service quality level of the data packet corresponding to the adaptive code stream media content whose service quality level has been improved.

13. A network media system, characterized by including: a media server, a media controller and N media players, N > 2;

The media player is used to obtain adaptive code streaming media content from the media server, and play the obtained adaptive code streaming media content;

The media server is configured to store adaptive code streaming media content and provide adaptive code streaming media content and description information of the adaptive code streaming media content to the media player;

The media controller is used to respectively obtain the playback code rate of the adaptive code streaming media content played by each of the N media players; if the playback code rate of the M1 adaptive code streaming media content is low Based on the corresponding first bit rate threshold value, and M1 < N, then adjust the playback bit rate of the adaptive code streaming media content played by K media players, Ml K N;

The media player is also used to obtain the first code corresponding to the adaptive code stream media content played by the media player based on the device capability information of the media player and the description information of the adaptive code stream media content played by the media player. Code rate threshold.

14. The network media system according to claim 13, characterized in that when the media controller adjusts the playback code rate of the adaptive streaming media content played by K media players, it is specifically used to:

The media controller determines the adaptive code stream media played by the K media players based on the total bandwidth used to play the N adaptive code stream media contents and the description information of each adaptive code stream media content. Playback code rate corresponding to content distribution; According to the playback code rate allocated for the adaptive code streaming media content played by the K media players, a code rate adjustment command is sent to the media server, so that the media server sends a code rate to the K media players. The rate is the adaptive code streaming media content at the assigned transmission bit rate.

15. The network media system according to claim 14, characterized in that:

The media controller determines the adaptive code stream media played by the K media players based on the total bandwidth used to play the N adaptive code stream media content and the description information of each adaptive code stream media content. When the corresponding playback code rate is allocated to the content, the playback code rate is allocated according to the following rules: The sum of the transmission code rates of the adaptive code streaming media content played by the N media players after the allocation is less than or equal to the one used to play the N The total bandwidth of adaptive code streaming media content;

The media player is also configured to obtain the second code rate threshold corresponding to the adaptive code stream media content played by the media player based on the device capability information of the media player and the description information of each adaptive code stream media content. value; the first bit rate threshold value corresponding to the adaptive code streaming media content played by each media player is greater than the second bit rate threshold value.

16. The network media system according to claim 13, characterized in that when the media controller adjusts the playback code rate of the adaptive streaming media content played by K media players, it is specifically used to:

If M1 < N, then the media controller requests the media server to improve the service quality of the data packets corresponding to the M1 adaptive code stream media content whose playback code rate is lower than the corresponding first code rate threshold. level, so that the M1 playback code rates are lower than the corresponding first code rate threshold The data packets corresponding to the adaptive code streaming media content are sent to the corresponding media player first, and the playback code rate of the K adaptive code streaming media content is adjusted; where, N=2, K=2 ;

If M1 = N, then the media controller determines whether the playback code rate of each adaptive code streaming media content is lower than the respective corresponding second code rate threshold; if M2 of the adaptive code streaming media If the playback code rate of the content is lower than the corresponding second code rate threshold, and M2 < N, then the media server is requested to increase the M2 automatic playback code rate that is lower than the corresponding second code rate threshold. Adapt the service quality level of the data packets corresponding to the code stream media content, so that the data packets corresponding to the adaptive code stream media content whose playback code rate is lower than the corresponding second code rate threshold are preferentially sent to the corresponding In the media player, and the playback code rate of the N adaptive code stream media content is adjusted; wherein, N=2;

17. The network media system according to claim 16, characterized in that:

After requesting the media server to improve the service quality level of the data packets corresponding to the M1 adaptive code stream media content whose playback code rates are lower than the corresponding first code rate threshold, the media controller also uses At:

If the playback code rate of each adaptive code streaming media content is greater than or equal to the corresponding first code rate threshold, the media controller requests the media server to restore the adaptive code with an improved service quality level. The service quality level of the data packet corresponding to the streaming media content; or, if the sum of the first code rate thresholds corresponding to the N adaptive code streaming media content is greater than the first code rate threshold used for playing the N adaptive code The total bandwidth of the streaming media content, then when the playback code rate of the adaptive code streaming media content whose service quality level has not been improved is adjusted to equal the corresponding first code rate threshold, the media server is requested to resume the improved service quality The service quality level of the data packet corresponding to the level of adaptive code streaming media content; After requesting the media server to improve the service quality level of the data packets corresponding to the M2 adaptive code stream media content whose playback code rates are lower than the corresponding second code rate threshold, the media controller also uses At:

If the playback code rate of each adaptive code stream media content is greater than or equal to the corresponding second code rate threshold, the media server is requested to restore the code corresponding to the adaptive code stream media content with an improved service quality level. The service quality level of the data packet; or, if the sum of the second code rate thresholds corresponding to the N adaptive code streaming media contents is greater than the total code rate used to play the N adaptive code streaming media contents. bandwidth, then when the playback code rate of the adaptive code streaming media content that has not improved the service quality level is adjusted to equal the corresponding second code rate threshold value, request the media server to restore the adaptive code that has improved the service quality level. The service quality level of the data packet corresponding to the streaming media content.

18. A media controller, characterized by including:

one or more processors;

memory;

One or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs include:

Obtain the instructions for the playback bit rate of the adaptive streaming media content played by each of the N media players, N > 2;

If the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M1 < N, then adjust the playback of the adaptive code streaming media content played by K media players Code rate instruction, M1 K N; where, the first code rate threshold value corresponding to the adaptive code streaming media content played by each media player is based on the device capability information of each media player and the The description information of the played adaptive code streaming media content is obtained.

19. The media controller according to claim 18, wherein if the playback code rates of the M1 adaptive code streaming media contents are lower than their corresponding first code rate thresholds, and M1 < N, then adjust the playback code rate of the adaptive code streaming media content played by K media players. Instructions, including:

If the playback code rates of the M1 adaptive code stream media contents are lower than their corresponding first code rate thresholds, and M1 < N, then according to the total code used to play the N adaptive code stream media contents Bandwidth and description information of each adaptive code streaming media content, and instructions for assigning corresponding playback code rates to the adaptive code streaming media content played by the K media players;

Send a code rate adjustment command to the media server according to the playback code rate assigned to the adaptive code streaming media content played by the K media players, so that the media server sends the code rate to the K media players. Instructions for adaptive code streaming of media content at the allocated transmission bit rate.

20. The media controller according to claim 19, characterized in that, based on the total bandwidth used to play the N adaptive code streaming media contents and the description information of each adaptive code streaming media content, is When the adaptive code streaming media content played by the K media players is assigned a corresponding playback code rate, the playback code rate is allocated according to the following rules:

If the sum of the first code rate threshold values of the adaptive code streaming media content played by the N media players is less than or equal to the total bandwidth used to play the adaptive code streaming media content, then the allocated The playback code rates of the adaptive code streaming media content played by the N media players are respectively greater than or equal to the corresponding first code rate threshold; if the first code rate of the adaptive code streaming media content played by the N media players If the sum of the code rate thresholds is greater than the total bandwidth used to play the N adaptive code stream media content, then the allocated playback code rate of the adaptive code stream media content played by the N media players respectively greater than or equal to the corresponding second code rate threshold;

21. The media controller according to claim 18, characterized in that, the M1 The playback code rate of the adaptive code streaming media content is lower than the corresponding first code rate threshold, and

Ml < N, then the instructions for adjusting the playback bit rate of adaptive streaming media content played by K media players include:

If the playback code rates of the M1 adaptive code stream media contents are lower than their corresponding first code rate thresholds, and M1 < N, then the media server is requested to increase the playback code rate corresponding to the M1 adaptive code stream media contents. The service quality level of the data packets is such that the data packets corresponding to the M1 adaptive code stream media contents whose playback code rates are lower than the corresponding first code rate threshold are sent to the corresponding media player with priority , and an instruction to adjust the playback code rate of the K adaptive code streaming media contents; where, N=2, K=2.

22. The media controller according to claim 21, wherein the one or more programs further include:

After requesting the media server to improve the service quality level of the data packets corresponding to the media content of the M1 adaptive code streams whose playback code rates are lower than the corresponding first code rate threshold, if each of the adaptive code streams If the playback code rate of the media content is greater than or equal to the corresponding first code rate threshold, the media server is requested to restore the quality of the service quality level of the data packet corresponding to the adaptive code stream media content whose service quality level is improved. ; or

After requesting the media server to improve the service quality level of the data packets corresponding to the media content of the M1 adaptive code streams whose playback code rates are lower than the corresponding first code rate threshold, if the N adaptive code streams If the sum of the first code rate threshold values corresponding to the media content is greater than the total bandwidth used to play the N adaptive code stream media contents, then the playback of the adaptive code stream media content without improving the service quality level When the code rate is adjusted to be equal to the corresponding first code rate threshold, the media server is requested to restore the service quality level of the data packet corresponding to the adaptive code stream media content whose service quality level is improved.

23. The media controller according to claim 18, characterized in that the one or more programs further include:

If the playback code rate of the N adaptive code streaming media contents is lower than the corresponding first code rate threshold, then determine whether the playback code rate of each adaptive code streaming media content is lower than the corresponding second code rate threshold; the adaptive code streaming media content played by each media player The corresponding second code rate threshold is obtained based on the device capability information of each media player and the description information of each adaptive code stream media content; the adaptive code stream media content played by each media player is The corresponding first code rate threshold is greater than the second code rate threshold;

If the playback code rate of the M2 adaptive code streaming media contents is lower than the corresponding second code rate threshold, and M2 < N, then the media server is requested to increase the playback code rate of the M2 pieces below the corresponding second code rate threshold. The service quality level of the data packet corresponding to the adaptive code streaming media content with the second code rate threshold value, so that the playback code rate is lower than the corresponding data packet quality level corresponding to the adaptive code streaming media content with the corresponding second code rate threshold value. The data packet is sent to the corresponding media player with priority, and the instruction for adjusting the playback code rate of the N adaptive code streaming media content is provided; wherein, N=2.

24. The media controller according to claim 23, wherein the one or more programs further include:

After requesting the media server to improve the service quality level of the data packets corresponding to the media content of the M2 adaptive code streams whose playback code rates are lower than the corresponding second code rate threshold, if each of the adaptive code streams If the playback code rate of the media content is greater than or equal to the corresponding second code rate threshold, then the media server is requested to restore the service quality level of the data packet corresponding to the adaptive code stream media content with an improved service quality level. ; or

After requesting the media server to improve the service quality level of the data packets corresponding to the M2 adaptive code streams whose playback code rates are lower than the corresponding second code rate threshold, if N adaptive code streams If the sum of the second code rate threshold values corresponding to the media content is greater than the total bandwidth used to play the N adaptive code stream media contents, then the playback of the adaptive code stream media content without improving the service quality level When the code rate is adjusted to be equal to the corresponding second code rate threshold, the media server is requested to restore the service quality level of the data packet corresponding to the adaptive code stream media content whose service quality level is improved.