CN110602065A - Live broadcast stream pushing method and device - Google Patents
Live broadcast stream pushing method and device Download PDFInfo
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- CN110602065A CN110602065A CN201910807376.6A CN201910807376A CN110602065A CN 110602065 A CN110602065 A CN 110602065A CN 201910807376 A CN201910807376 A CN 201910807376A CN 110602065 A CN110602065 A CN 110602065A
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- media stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a live streaming method and a live streaming device, which are applied to a media streaming server, and the method comprises the following steps: acquiring a media stream acquired by media stream acquisition equipment in real time, wherein the media stream is in an MPEG4 compression format; converting the media stream in the MPEG4 compressed format into a media stream in a compressed format capable of being transmitted by the RTMP protocol; packaging the converted media stream into RTMP packets; and sending the RTMP packet to the media stream playing device. On the basis of not changing the original standard protocol of the media stream acquisition equipment, the media stream server converts the media stream in the MPEG4 compression format output by the media stream acquisition equipment into the media stream in the compression format which can be transmitted by the RTMP protocol, and then encapsulates the converted media stream into the RTMP packet to be issued, so that the media stream acquisition equipment which only supports the MPEG4 compression format can multiplex various advantages of the RTMP protocol for live broadcasting.
Description
Technical Field
The invention relates to the field of live broadcasting, in particular to a live broadcasting stream pushing method and device.
Background
The RTMP (Real Time Messaging Protocol) is a streaming media transport Protocol, and is widely used in the current live broadcast due to its low delay, almost open source, and multi-terminal support.
At present, many media stream collecting devices such as monitoring devices only support the encoding method of MPEG4(Moving Pictures Experts Group), and there are also a lot of manufacturers that only support the encoding method of MPEG4 due to various reasons such as the limitation of the encoding capability of the devices, and use RTP/RTCP or proprietary protocols to live the media streams on such devices.
However, the existing RTMP protocol does not support the transmission of the media stream in the MPEG4 compression format, and thus, a media stream capture device supporting only the MPEG4 compression format cannot multiplex the various advantages of the RTMP protocol for live broadcasting.
Disclosure of Invention
In view of the above technical problems, embodiments of the present invention provide a live streaming method and apparatus.
A first aspect of an embodiment of the present invention provides a live streaming method, which is applied to a media stream server, where the media stream server is used to switch a media stream acquisition device and a media stream playing device, and the method includes:
acquiring a media stream acquired by the media stream acquisition equipment in real time, wherein the media stream is in an MPEG4 compression format;
converting the MPEG4 compressed format media stream into a compressed format media stream capable of being transmitted by RTMP protocol;
packaging the converted media stream into RTMP packets;
and sending the RTMP packet to the media stream playing equipment.
Optionally, the compression format of the converted media stream is an H264 compression format.
Optionally, the converting the media stream in the MPEG4 compressed format into a media stream in a compressed format capable of being transmitted by an RTMP protocol includes:
and converting the media stream in the MPEG4 compressed format into the media stream in the compressed format capable of being transmitted by the RTMP protocol by adopting an FFMpeg program.
Optionally, the media stream acquired by the media stream server is an RTP packet encapsulated by an RTP protocol.
Optionally, after acquiring the media stream encapsulated by the RTP protocol acquired by the media stream acquiring device in real time, before converting the media stream in the MPEG4 compressed format into the media stream in the compressed format that can be transmitted by the RTMP protocol, the method further includes:
decoding the RTP packet;
the decoded media stream is reassembled to obtain the media stream in the MPEG4 compressed format.
A second aspect of the embodiments of the present invention provides a live streaming apparatus, which is applied to a media stream server, where the media stream server is used to switch a media stream acquisition device and a media stream playing device, and the apparatus includes:
the acquisition module is used for acquiring the media stream acquired by the media stream acquisition equipment in real time, wherein the media stream is in an MPEG4 compression format;
a format conversion module, configured to convert the media stream in the MPEG4 compressed format into a media stream in a compressed format that can be transmitted through an RTMP protocol;
the encapsulation module is used for encapsulating the converted media stream into an RTMP packet;
and the sending module is used for sending the RTMP packet to the media stream playing equipment.
Optionally, the compression format of the converted media stream is an H264 compression format.
Optionally, the format conversion module is specifically configured to:
and converting the media stream in the MPEG4 compressed format into the media stream in the compressed format capable of being transmitted by the RTMP protocol by adopting an FFMpeg program.
Optionally, the media stream acquired by the acquiring module is an RTP packet encapsulated by an RTP protocol.
Optionally, the apparatus further comprises:
a decoding module, configured to decode the RTP packet acquired by the acquisition module;
and the reassembly module is used for reassembling the media stream obtained by decoding to obtain a media stream in an MPEG4 compressed format, and transmitting the media stream in the MPEG4 compressed format to the format conversion module.
In the technical scheme provided by the embodiment of the invention, on the basis of not changing the original standard protocol of the media stream acquisition equipment, the media stream in the MPEG4 compression format output by the media stream acquisition equipment is converted into the media stream in the compression format which can be transmitted by the RTMP protocol through the media stream server, and then the converted media stream is encapsulated into the RTMP packet and is issued, so that the media stream acquisition equipment which only supports the MPEG4 compression format can multiplex various advantages of the RTMP protocol for live broadcasting, therefore, compared with the prior art, the embodiment of the invention can watch the media stream of the media stream acquisition equipment which only supports the MPEG4 coding mode on the media stream playing equipment which supports the RTMP protocol for live broadcasting.
Drawings
Fig. 1 is a schematic diagram of an embodiment of networking of live push streams in an embodiment of the present invention;
fig. 2 is a schematic diagram of an embodiment of a live streaming method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another embodiment of a live streaming method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of a live streaming method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an embodiment of a live streaming apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an embodiment of a live streaming apparatus in an embodiment of the present invention.
Reference numerals: 100: a media streaming server; 200: a media stream acquisition device; 300: a media stream playing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in the following examples and embodiments, features may be combined with each other without conflict.
Referring to fig. 1, the networking of the live streaming method and apparatus provided in this embodiment includes a media stream server 100, a media stream collecting device 200, and a media stream playing device 300, where the media stream server 100 is configured to switch the media stream collecting device 200 and the media stream playing device 300. The media stream capturing device 200 is used to capture a media stream, which may include audio and/or video. During live broadcasting, after acquiring a media stream, the media stream acquisition device 200 compresses the media stream, and then sends the compressed media stream to the media stream server 100, and the media stream server 100 pushes the media stream to the media stream playing device 300.
The media stream collecting device 200 may be a monitoring device, such as a Camera like an IPC (Internet Protocol Camera), or may be other shooting device, such as a mobile phone.
The media stream playing apparatus 300 may be a terminal with a video playing function, such as a mobile phone, a pad, a desktop, or the like.
Referring to fig. 2, an embodiment of a live streaming method according to an embodiment of the present invention is shown; the live broadcast stream pushing method provided by the embodiment of the invention is applied to the media stream server 100, and can comprise the following steps:
s201: acquiring a media stream acquired by the media stream acquisition equipment 200 in real time, wherein the media stream is in an MPEG4 compression format;
in some embodiments, the media stream acquired by the media stream server 100 is an RTP packet encapsulated by an RTP Protocol (Real-time Transport Protocol), that is, the media stream output by the media stream acquisition device 200 is an RTP packet encapsulated by the RTP Protocol; it is understood that in other embodiments, the media stream output by the media stream capture device 200 may also be other protocols such as RTCP (Real-time Transport Control Protocol) or proprietary protocols.
S202: converting the media stream in the MPEG4 compressed format into a media stream in a compressed format capable of being transmitted by the RTMP protocol;
among other things, the RTMP protocol can support media stream transmission in a plurality of compression formats, such as H264 (i.e., h.264) compression format. In this embodiment, the compressed format of the converted media stream is an H264 compressed format, so as to support more media stream playing devices 300 to play.
Optionally, when the media stream in the MPEG4 compressed format is converted into the media stream in the compressed format that can be transmitted by the RTMP protocol, an FFMpeg (Fast Forward MPEG, audio and video open source library) program is used to convert the media stream in the MPEG4 compressed format into the media stream in the compressed format that can be transmitted by the RTMP protocol, that is, the existing FFMpeg program is used to convert the media stream in the MPEG4 compressed format into the media stream in the compressed format that can be transmitted by the RTMP protocol, which is convenient and Fast. It will be appreciated that custom programs may also be employed to convert the MPEG4 compressed format media stream into a compressed format media stream capable of being transported via the RTMP protocol.
In the embodiment of the present invention, the FFMpeg program is directly loaded on the media streaming server 100; it is understood that, in other embodiments, the FFMpeg program may also be loaded on other devices, the media stream server 100 is in communication with the device loaded with the FFMpeg program, the media stream obtained by the media stream server 100 in step S201 is sent to the device loaded with the FFMpeg program, the device loaded with the FFMpeg program transcodes the received media stream, that is, in the device loaded with the FFMpeg program, the media stream in the MPEG4 compression format is converted into a media stream in a compression format capable of being transmitted by the RTMP protocol, and then the device loaded with the FFMpeg program sends the media stream in the compression format capable of being transmitted by the RTMP protocol to the media stream server 100.
Optionally, the media stream acquired by the media stream server 100 is an RTP packet encapsulated by an RTP Protocol (Real-time Transport Protocol), please refer to fig. 3, where after acquiring the media stream encapsulated by the RTP Protocol acquired by the media stream acquisition device 200 in Real time, before converting the media stream in the MPEG4 compressed format into a media stream in a compressed format that can be transmitted by the RTMP Protocol, the live streaming method may further include the following steps:
s301: decoding the RTP packet;
optionally, the RTP packet acquired by the media streaming server 100 is an encrypted RTP packet, and decoding the RTP packet may include: the RTP packet acquired by the media streaming server 100 is decrypted. Of course, decoding the RTP packet may also include other operations, which are not illustrated in the embodiment of the present invention.
S302: the decoded media stream is reassembled to obtain the media stream in the MPEG4 compressed format.
In this embodiment, the media stream obtained by decoding is reassembled so that the media stream is restored, that is, the media stream in the MPEG4 compressed format obtained in step S302 is the same as the media stream collected by the media stream collection device 200 in real time.
S203: packaging the converted media stream into RTMP packets;
that is, the RTMP protocol is used to encapsulate the media stream (e.g., the media stream in the H264 compression format) obtained in step S202 after the compression format conversion, so as to obtain an RTMP packet. The media stream is encapsulated by using the RTMP protocol, which is a conventional technique, and this is not described in the embodiments of the present invention.
S204: and sending the RTMP packet to the media stream playing device 300.
In some embodiments, the media streaming server 100 directly transmits the RTMP packet obtained in step S203 to the media streaming playing device 300 currently in communication connection with the media streaming server 100.
In some embodiments, before the media streaming server 100 sends the RTMP packet obtained in step S203 to the media streaming playing apparatus 300, the method further includes: receiving a live broadcast request sent by the media stream playing device 300, where the live broadcast request carries the device identifier of the media stream collecting device 200 corresponding to the media stream to be live broadcast and the device identifier of the media stream playing device 300. The device identification may include an ID (identity information) or other device information.
In an embodiment, referring to fig. 3, the live streaming method includes the following steps:
(1) receiving an RTP packet sent by the media stream collecting device 200, where a media stream in the RTP packet is in an MPEG4 compression format;
(2) decoding the RTP packet;
(3) reassembling the media stream obtained by decoding to obtain a media stream in an MPEG4 compression format;
(4) transcoding the media stream in the MPEG4 compressed format obtained in the step (3) by using an FFMpeg program to obtain a media stream in an H264 compressed format;
(5) packaging the media stream in the H264 compression format into an RTMP packet by utilizing an RTMP protocol;
(6) and issuing the RTMP packet, and repeating the steps (1) to (6).
The above describes the live streaming method in the embodiment of the present invention, and in correspondence to the live streaming method in the above embodiment, an embodiment of the present invention further provides a live streaming device, and the live streaming device in the embodiment of the present invention is described below with reference to fig. 4, where the live streaming device includes:
an obtaining module, configured to obtain a media stream collected by the media stream collection device 200 in real time, where the media stream is in an MPEG4 compressed format;
the format conversion module is used for converting the media stream in the MPEG4 compressed format into the media stream in the compressed format which can be transmitted by the RTMP protocol;
the encapsulation module is used for encapsulating the converted media stream into an RTMP packet;
a sending module, configured to send the RTMP packet to the media stream playing device 300.
Optionally, the compression format of the converted media stream is an H264 compression format.
Optionally, the format conversion module is specifically configured to:
the FFMpeg program is used to convert a media stream in MPEG4 compressed format into a media stream in compressed format that can be transported via the RTMP protocol.
Optionally, the media stream acquired by the acquiring module is an RTP packet encapsulated by an RTP protocol.
Optionally, the apparatus further comprises:
a decoding module, configured to decode the RTP packet acquired by the acquisition module;
and the reassembly module is used for reassembling the media stream obtained by decoding to obtain the media stream in the MPEG4 compressed format, and transmitting the media stream in the MPEG4 compressed format to the format conversion module.
The implementation process of the functions and actions of each module in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement it without inventive effort.
According to the live broadcast stream pushing method and device, on the basis that the original standard protocol of the media stream acquisition equipment 200 is not changed, the media stream server 100 converts the media stream in the MPEG4 compression format output by the media stream acquisition equipment 200 into the media stream in the compression format capable of being transmitted by the RTMP protocol, and then encapsulates the converted media stream into the RTMP packet to be issued, so that the media stream acquisition equipment 200 only supporting the MPEG4 compression format can multiplex various advantages of the RTMP protocol for live broadcast, and therefore compared with the prior art, the embodiment of the invention can watch the media stream of the media stream acquisition equipment 200 only supporting the MPEG4 coding mode on the media stream playing equipment 300 only supporting the RTMP protocol for live broadcast.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A live broadcast stream pushing method is applied to a media stream server, the media stream server is used for switching media stream acquisition equipment and media stream playing equipment, and the method is characterized by comprising the following steps:
acquiring a media stream acquired by the media stream acquisition equipment in real time, wherein the media stream is in an MPEG4 compression format;
converting the MPEG4 compressed format media stream into a compressed format media stream capable of being transmitted by RTMP protocol;
packaging the converted media stream into RTMP packets;
and sending the RTMP packet to the media stream playing equipment.
2. The method of claim 1, wherein the compressed format of the converted media stream is an H264 compressed format.
3. The method according to claim 1 or 2, wherein said converting said MPEG4 compressed format media stream into a compressed format media stream capable of being transported by the RTMP protocol comprises:
and converting the media stream in the MPEG4 compressed format into the media stream in the compressed format capable of being transmitted by the RTMP protocol by adopting an FFMpeg program.
4. The method according to claim 1, wherein the media stream acquired by the media stream server is an RTP packet encapsulated by an RTP protocol.
5. The method according to claim 4, wherein after the acquiring the RTP protocol encapsulated media stream collected by the media stream collecting device in real time, before converting the MPEG4 compressed format media stream into a compressed format media stream capable of being transmitted by RTMP protocol, further comprises:
decoding the RTP packet;
the decoded media stream is reassembled to obtain the media stream in the MPEG4 compressed format.
6. A live broadcast stream pushing device is applied to a media stream server, the media stream server is used for switching media stream acquisition equipment and media stream playing equipment, and the live broadcast stream pushing device is characterized by comprising:
the acquisition module is used for acquiring the media stream acquired by the media stream acquisition equipment in real time, wherein the media stream is in an MPEG4 compression format;
a format conversion module, configured to convert the media stream in the MPEG4 compressed format into a media stream in a compressed format that can be transmitted through an RTMP protocol;
the encapsulation module is used for encapsulating the converted media stream into an RTMP packet;
and the sending module is used for sending the RTMP packet to the media stream playing equipment.
7. The apparatus of claim 6, wherein the compressed format of the converted media stream is an H264 compressed format.
8. The apparatus according to claim 6 or 7, wherein the format conversion module is specifically configured to:
and converting the media stream in the MPEG4 compressed format into the media stream in the compressed format capable of being transmitted by the RTMP protocol by adopting an FFMpeg program.
9. The apparatus according to claim 6, wherein the media stream acquired by the acquiring module is an RTP packet encapsulated by an RTP protocol.
10. The apparatus of claim 9, further comprising:
a decoding module, configured to decode the RTP packet acquired by the acquisition module;
and the reassembly module is used for reassembling the media stream obtained by decoding to obtain a media stream in an MPEG4 compressed format, and transmitting the media stream in the MPEG4 compressed format to the format conversion module.
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| CN201910807376.6A CN110602065A (en) | 2019-08-29 | 2019-08-29 | Live broadcast stream pushing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910807376.6A CN110602065A (en) | 2019-08-29 | 2019-08-29 | Live broadcast stream pushing method and device |
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Application publication date: 20191220 |