CN101835029A - Control method, system and client for playing streaming media - Google Patents
Control method, system and client for playing streaming media Download PDFInfo
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Abstract
The invention provides a control method, a system and a client for playing streaming media. The method comprises the following steps: a streaming media server establishes connection with the client; the client reports a network state to the streaming media server, and the streaming media server selects the streaming medium of a preset code stream based on the network state of the client; and the streaming media server sends the streaming medium to the client for playing. The control method, the system and the client for playing streaming media improve the fluency of streaming media playing.
Description
[technical field]
The present invention relates to communication technical field, relate in particular to a kind of flow medium play control method, system and client.
[background technology]
The mobile flow medium technology is the product of network audio-video technology and mobile communication technology combination, it has merged the technology that produces after a lot of network technologies, relates to a plurality of fields such as collection, compression, storage, wireless communication and portable terminal of stream medium data.In the net cast program request of using the mobile flow medium technology, because wireless network environment more complicated, the signal of portable terminal also can often change because residing position is different, cause the congested unusual phenomenon of data communication to happen occasionally, and because huge, the terminal packet loss height of amount of user data, transmission delay is big, the network jitter rate is high problem, often the fluency of streaming media playing is not high.
[summary of the invention]
Based on this, be necessary to provide a kind of flow medium play control method that can improve the streaming media playing fluency.
A kind of flow medium play control method may further comprise the steps: streaming media server and client connect; Described client reports described streaming media server with network condition, and described streaming media server is selected the Streaming Media of default code stream according to the network condition of client; Described streaming media server sends to client with described Streaming Media and plays.
Preferably, also comprise before the step that described streaming media server and client connect: encoder is registered at streaming media server according to default a plurality of code streams same flow-medium performance, and described streaming media server writes down the relevant information of the Streaming Media of described default code stream.
Preferably, described method also comprises: when described network condition changes, described client not timing reports described streaming media server with network condition, described streaming media server sends to client with the Streaming Media behind the adjustment code stream and plays according to the code stream size of network condition adjustment Streaming Media.
Preferably, described method also comprises: described client is fed back buffer information to streaming media server, and described streaming media server sends the speed of Streaming Media to client according to the buffer information adjustment.
Further preferably; described Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
In addition, also be necessary to provide a kind of streaming media playing control system that can improve the streaming media playing fluency.
A kind of streaming media playing control system comprises: client, connect with streaming media server, and network condition is reported streaming media server, the Streaming Media that the receiving stream media server sends is also play; Streaming media server is connected with client network, selects the Streaming Media of default code stream according to the network condition of client, the Streaming Media of selecting is sent to client play.
Preferably, described system also comprises: the encoder that same flow-medium performance is registered at described streaming media server according to default a plurality of code streams; Described streaming media server also is used to write down the relevant information of the Streaming Media of described default code stream.
Preferably, described client is further used for when network condition changes, and not timing reports described streaming media server with network condition; Described streaming media server sends to client with the Streaming Media behind the adjustment code stream and plays according to the code stream size of network condition adjustment Streaming Media.
Preferably, described client also is used for to described streaming media server feedback buffer information; Described streaming media server sends the speed of Streaming Media to client according to the buffer information adjustment.
Further preferably; described Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
In addition, also be necessary to provide a kind of client that can improve the streaming media playing fluency.
A kind of client that is used for streaming media playing, described client and streaming media server connect, and network condition is reported streaming media server, receive described streaming media server and select to preset the Streaming Media of code stream and play according to network condition.
Preferably, described client is when network condition changes, and not timing reports described streaming media server with network condition, and the receiving stream media server is adjusted the Streaming Media behind the code stream according to network condition and play.
Preferably, described client also is used for to streaming media server feedback buffer information.
Further preferably; Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
Above-mentioned flow medium play control method, system and client, the network condition that reports according to client by streaming media server is selected the Streaming Media of default code stream, this Streaming Media sends to client and plays, thereby can select to be fit to the code stream size of client terminal playing according to the network condition of client, can be implemented under the different network conditions, client can both normal online smoothness carry out streaming media playing, improved the fluency of streaming media playing.When network condition changes, can also adjust the code stream size according to the network condition self adaptation, make code stream can dynamically adapt to current network condition, given full play to the present network bandwidth, further improved the fluency of streaming media playing.
[description of drawings]
Fig. 1 is the flow chart of flow medium play control method among the embodiment;
Fig. 2 is the structural representation of streaming media playing control system among the embodiment.
[embodiment]
Fig. 1 shows the method flow of mobile flow medium Play Control among the embodiment, and this method flow detailed process is as follows:
Step S10, streaming media server and client connect.
Step S20, client reports streaming media server with network condition, and streaming media server is selected the Streaming Media of default code stream according to the network condition of client.Network condition comprises current measurable network throughput, current number of dropped packets, packet loss and some other information.In a preferred embodiment, client is just network condition to be reported streaming media server when network condition changes, thus client be not timing network condition is reported streaming media server.For example, the incipient stage, detected the primary network situation every 5 seconds, continuous 5 detection network condition smoothnesses just think that present network is more stable, then can temporarily abandon detecting, when having the client of floating more greatly, network condition thinks that then present network condition changes, and then reports streaming media server with network condition.Like this, can make client under the situation of network stabilization, give the audio, video data transmission all bandwidth and use, reduce network burden.
Step S30, streaming media server sends to client with the Streaming Media of selecting and plays.In one embodiment, client is also to streaming media server feedback buffer information, and buffer information comprises buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and plays time-delay etc.Wherein, the buffer size that client provides for code check is adaptive is to be sent to streaming media server by client when client is connected beginning with streaming media server, and in a session, buffer size is constant; The target buffer protection time is to be sent to streaming media server by client when connecting beginning; The vacant cushion space of buffering area then sends streaming media server to by the client not timing in conversation procedure; Playing time delay also is to send streaming media server to by the client not timing in conversation procedure.Streaming media server is adjusted the speed that sends Streaming Media to client according to these buffer informations, and overflow and the generation of hungry situation in the client buffer district that avoids causing.
In another embodiment, before above-mentioned steps, encoder is registered at streaming media server according to default a plurality of code streams same flow-medium performance, the relevant information of the Streaming Media of streaming media server record prediction code stream, these relevant informations comprise code stream size, stream number and the image size etc. of Streaming Media.
Above-mentioned Streaming Media comprises live broadcast stream media and puts two kinds of broadcasting flow-mediums that live broadcast stream media has real-time, is that the content that records is in advance play and put broadcasting flow-medium, does not have real-time.In one embodiment, for live broadcast stream media, encoder-side is registered to streaming media server according to a plurality of code streams (or code check) same live TV stream program, for example, encoder provides live TV stream program of 40kb/s, 100kb/s, three kinds of code checks of 250kb/s, and register at streaming media server, streaming media server has then write down the information such as code rate information, stream number and image size of this live TV stream program.When client connects, streaming media server selects the live TV stream of suitable code check to send to the client according to situations such as the type of client, the network bandwidths, for example, current network conditions is when the 45kb/s left and right sides, and it is that the live TV stream of 40kb/s code check sends to client that streaming media server is then selected code check.In playing process, the client not timing reports streaming media server with network condition, and streaming media server then switches the live TV stream of different code streams (or code check) to client in real time according to network condition.
In another embodiment, for a broadcasting flow-medium, encoder-side provides multiple different code check (or code stream) form to each request program, for example, encoder provides the program request file of 40kb/s, 100kb/s, 250kb/s three kinds of code checks, and register at streaming media server, streaming media server has write down the information such as code rate information, stream number and image size of request program.When client had program request to connect, streaming media server was opened the program request file of these several different code checks simultaneously, and the network condition that reports according to client is selected the request program of suitable code check automatically.For example, current network condition is about 45kb/s, and then streaming media server selects the program request file of 40kb/s code check to give client.In playing process, the client not timing reports streaming media server with network condition, when network condition changed, streaming media server was then adjusted the code stream (or code check) of request program according to the network condition that reports, and the program request that will adjust behind the code stream (or code check) is spread to client.For example, different network conditions is divided into a plurality of grades (as 5 grades), and the code stream that the network condition of different brackets is corresponding different is when streaming media server receives network condition, obtain the residing grade of this network condition, select the program request of corresponding code stream to spread to client.
Fig. 2 shows a streaming media playing control system structure among the embodiment, and this system comprises client 10, streaming media server 20 and encoder 30, wherein:
Client 10 is set up network with streaming media server 20 and is connected, and network condition is reported streaming media server 20, and the Streaming Media that sends of receiving stream media server 20 and playing; Streaming media server 20 is connected with client 10 networks, selects the Streaming Media of default code stream according to the network condition of client 10, will select Streaming Media to send to client 10 and play.Network condition comprises current measurable network throughput, current number of dropped packets, packet loss and some other information.
In one embodiment, also to streaming media server 20 feedback buffer informations, buffer information comprises buffer size, target buffer protection time, the vacant cushion space of buffering area that client 10 provides for code check is adaptive and plays time-delay etc. client 10.Streaming media server 20 can be adjusted the speed that sends Streaming Media to 01 according to these buffer informations, and client 10 buffering areas of avoiding causing overflow and hungry situation takes place.
Encoder 30 is used for same flow-medium performance is registered at streaming media server 20 according to default a plurality of code streams, and streaming media server 20 also is used to write down the relevant information of the Streaming Media of presetting code stream.These relevant informations comprise code stream (or code check) size, stream number and the image size etc. of Streaming Media.
Above-mentioned Streaming Media comprises live broadcast stream media and puts two kinds of broadcasting flow-mediums.In one embodiment, for live broadcast stream media, 30 pairs of same live TV stream programs of encoder are registered to streaming media server 20 according to a plurality of code streams (or code check), for example, encoder 30 provides live TV stream program of 40kb/s, 100kb/s, three kinds of code checks of 250kb/s, and register at streaming media server 20,20 of streaming media servers have write down the information such as code rate information, stream number and image size of this live TV stream program.When client 10 connects, streaming media server 20 selects the live TV stream of suitable code check to send to client 10 according to situations such as the type of client 10, the network bandwidths, for example, current network conditions is when the 45kb/s left and right sides, and 20 selections of streaming media server code check is that the live TV stream of 40kb/s code check sends to client 10.In playing process, client 10 not timings report streaming media server 20 with network condition, and 20 of streaming media servers switch the live TV stream of different code checks in real time to client 10 according to network condition.
In another embodiment, for a broadcasting flow-medium, encoder 30 provides multiple different code check form to each request program, for example, encoder 30 provides the program request file of 40kb/s, 100kb/s, 250kb/s three kinds of code checks, and register at streaming media server 20, streaming media server 20 has write down the information such as code rate information, stream number and image size of request program.When client 10 had program request to connect, streaming media server 20 was opened the program request file of these several different code checks simultaneously, and the network condition that reports according to client 10 is selected the request program of suitable code check automatically.For example, current network condition is about 45kb/s, and then streaming media server 20 selects the program request file of 40kb/s code check to give client 10.In playing process, client 10 not timings report streaming media server 20 with network condition, when network condition changes, network condition that 20 bases of streaming media server report is adjusted the code stream (or code check) of request program, and the program request that will adjust behind the code stream (or code check) is spread to client 10.
Above-mentioned flow medium play control method, system and client, the network condition that reports according to client by streaming media server is selected the Streaming Media of default code stream, this Streaming Media sends to client and plays, thereby can select to be fit to the code stream size of client terminal playing according to the network condition of client, can be implemented under the different network conditions, client can both normal online smoothness carry out streaming media playing, improved the fluency of streaming media playing.When network condition changes, can also adjust the code stream size according to the network condition self adaptation, make code stream can dynamically adapt to current network condition, given full play to the present network bandwidth, further improved the fluency of streaming media playing.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (14)
1. flow medium play control method may further comprise the steps:
Streaming media server and client connect;
Described client reports described streaming media server with network condition, and described streaming media server is selected the Streaming Media of default code stream according to the network condition of client;
Described streaming media server sends to client with described Streaming Media and plays.
2. flow medium play control method according to claim 1 is characterized in that, also comprises before the step that described streaming media server and client connect:
Encoder is registered at streaming media server according to default a plurality of code streams same flow-medium performance, and described streaming media server writes down the relevant information of the Streaming Media of described default code stream.
3. flow medium play control method according to claim 1, it is characterized in that, described method also comprises: when described network condition changes, described client not timing reports described streaming media server with network condition, described streaming media server sends to client with the Streaming Media behind the adjustment code stream and plays according to the code stream size of network condition adjustment Streaming Media.
4. flow medium play control method according to claim 1, it is characterized in that, described method also comprises: described client is fed back buffer information to streaming media server, and described streaming media server sends the speed of Streaming Media to client according to the buffer information adjustment.
5. flow medium play control method according to claim 4; it is characterized in that; described Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
6. a streaming media playing control system is characterized in that, comprising:
Client connects with streaming media server, and network condition is reported streaming media server, and the Streaming Media that the receiving stream media server sends is also play;
Streaming media server is connected with client network, selects the Streaming Media of default code stream according to the network condition of client, the Streaming Media of selecting is sent to client play.
7. streaming media playing control system according to claim 6 is characterized in that, described system also comprises: the encoder that same flow-medium performance is registered at described streaming media server according to default a plurality of code streams; Described streaming media server also is used to write down the relevant information of the Streaming Media of described default code stream.
8. streaming media playing control system according to claim 6 is characterized in that described client is further used for when network condition changes, and not timing reports described streaming media server with network condition; Described streaming media server sends to client with the Streaming Media behind the adjustment code stream and plays according to the code stream size of network condition adjustment Streaming Media.
9. streaming media playing control system according to claim 6 is characterized in that, described client also is used for to described streaming media server feedback buffer information; Described streaming media server sends the speed of Streaming Media to client according to the buffer information adjustment.
10. streaming media playing control system according to claim 9; it is characterized in that; described Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
11. client that is used for streaming media playing, it is characterized in that, described client and streaming media server connect, and network condition is reported streaming media server, receive described streaming media server and select to preset the Streaming Media of code stream and play according to network condition.
12. the client that is used for streaming media playing according to claim 11, it is characterized in that, described client is when network condition changes, not timing reports described streaming media server with network condition, and the receiving stream media server is adjusted the Streaming Media behind the code stream according to network condition and play.
13. the client that is used for streaming media playing according to claim 11 is characterized in that, described client also is used for to streaming media server feedback buffer information.
14. the client that is used for streaming media playing according to claim 13; it is characterized in that; Streaming Media comprises live broadcast stream media and puts broadcasting flow-medium; packets of information total amount and packet loss that described network condition comprises network throughput, loses in receiving course, described buffer information comprise buffer size, target buffer protection time, the vacant cushion space of buffering area that client provides for code check is adaptive and play time-delay.
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