Shulou(Shulou.com)06/01 Report--

How to use Nginx-rtmp to achieve a live media real-time streaming effect? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

Flow chart

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1. Client A cannot perform P2P penetration and requests the business server to forward it.

two。 According to client An and request type, the business server returns the corresponding forwarding server address and corresponding room number RoomID/Token and other information

3. The above request types can be to request self-built RTMP streaming service, purchase from cloud vendor RTMP streaming service or custom protocol media forwarding service.

4. Client A gets the media server address and RoomID/Token returned by the business server

5. Send the corresponding media server address and RoomID/Token to client B at the other end through the signaling server or MQTT server.

6. Client An and client B enter the same room Room at the same time. Client A pushes and client B pulls streams.

7. Other media information, such as codec format, clarity, playback, pause, photo, etc., are controlled by the above signaling or MQTT server.

1. Compile Nginx

RTMP streaming media server, there are many ready-made open source solutions, such as SRS,Red5,wowoza,FMS, I use the rtmp plug-in of Nginx to achieve real-time streaming.

Download nginx-rtmp-module https://github.com/arut/nginx-rtmp-module

Recompile nginx

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-prefix=/opt/nginx-- with-stream-- with-http_ssl_module-- with-stream_ssl_module-- with-debug-- add-module=../nginx-rtmp-module

two。 Configure Nginx.conf

The basic nginx configuration will not be introduced here. What you need to know can refer to my other blogs, which are introduced. Only the definition of the rtmp segment is introduced here.

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Rtmp {

Server {

Listen 8081

Access_log logs/rtmp_access.log

On_connect http://127.0.0.1:8080/v1/rtmp/on_connect;

Application rtmp {

Live on

Notify_method get

On_play http://127.0.0.1:8080/v1/rtmp/on_play;

On_publish http://127.0.0.1:8080/v1/rtmp/on_publish;

On_done http://127.0.0.1:8080/v1/rtmp/on_done;

On_play_done http://127.0.0.1:8080/v1/rtmp/on_play_done;

On_publish_done http://127.0.0.1:8080/v1/rtmp/on_publish_done;

On_record_done http://127.0.0.1:8080/v1/rtmp/on_record_done;

On_update http://127.0.0.1:8080/v1/rtmp/on_update;

Notify_update_timeout 10s

}

Application vod {

Play / opt/openresty/video

}

}

}

3. HTTP asynchronous notification callback

The Nginx-rtmp-module plug-in implements event notifications for some commands of the RTMP protocol. Here I quickly build a HTTP service to receive callbacks from RTMP through a simple SpringBoot project.

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Package com.wunaozai.rtmp.notify.controller

Import javax.servlet.http.HttpServletRequest

Import org.springframework.web.bind.annotation.GetMapping

Import org.springframework.web.bind.annotation.RequestMapping

Import org.springframework.web.bind.annotation.RestController

@ RestController

@ RequestMapping (value= "/ v1/rtmp/")

Public class RTMPNotifyController {

@ GetMapping (value= "/ on_connect")

Public String onConnect (HttpServletRequest request) {

Debug (request, "on_connect")

Return "on_connect"

}

@ GetMapping (value= "/ on_play")

Public String onPlay (HttpServletRequest request) {

Debug (request, "on_play")

Return "on_play"

}

@ GetMapping (value= "/ on_publish")

Public String onPublish (HttpServletRequest request) {

Debug (request, "on_publish")

Return "on_publish"

}

@ GetMapping (value= "/ on_done")

Public String onDone (HttpServletRequest request) {

Debug (request, "on_done")

Return "on_done"

}

@ GetMapping (value= "/ on_play_done")

Public String onPlayDone (HttpServletRequest request) {

Debug (request, "on_play_done")

Return "on_play_done"

}

@ GetMapping (value= "/ on_publish_done")

Public String onPublishDone (HttpServletRequest request) {

Debug (request, "on_publish_done")

Return "on_publish_done"

}

@ GetMapping (value= "/ on_record_done")

Public String onRecordDone (HttpServletRequest request) {

Debug (request, "on_record_done")

Return "on_record_done"

}

@ GetMapping (value= "/ on_update")

Public String onUpdate (HttpServletRequest request) {

Debug (request, "on_update")

Return "on_update"

}

Private String debug (HttpServletRequest request, String action) {

String str = action + ":" + request.getRequestURI () + "" + request.getQueryString ()

System.out.println (str)

Return str

}

}

4. Running effect

(1) start nginx and SpringBoot

(2) the following is the SpringBoot print message (you can briefly analyze these logs)

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On_connect: / v1/rtmp/on_connect app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178269841&call=connect

On_publish: / v1/rtmp/on_publish app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=541&call=publish&name=room&type=live

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=541&call=update_publish&time=10 × tamp=3999&name=room

On_done: / v1/rtmp/on_done app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=541&call=done&name=room

On_publish_done: / v1/rtmp/on_publish_done app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=541&call=publish_done&name=room

On_connect: / v1/rtmp/on_connect app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178305623&call=connect

On_publish: / v1/rtmp/on_publish app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=publish&name=room&type=live

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=10 × tamp=7296&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=20 × tamp=17248&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=30 × tamp=27328&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=40 × tamp=37280&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=50 × tamp=47296&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=60 × tamp=57312&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=70 × tamp=67264&name=room

On_connect: / v1/rtmp/on_connect app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178380351&call=connect

On_play: / v1/rtmp/on_play app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=557&call=play&name=room&start=4294966296&duration=0&reset=0&pass=12345

On_play_done: / v1/rtmp/on_play_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=557&call=play_done&name=room&pass=12345

On_done: / v1/rtmp/on_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=557&call=done&name=room&pass=12345

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=80 × tamp=77344&name=room

On_connect: / v1/rtmp/on_connect app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178388202&call=connect

On_play: / v1/rtmp/on_play app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=563&call=play&name=room&start=4294966296&duration=0&reset=0&pass=12345

On_done: / v1/rtmp/on_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=563&call=done&name=room&pass=12345

On_play_done: / v1/rtmp/on_play_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=563&call=play_done&name=room&pass=12345

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=90 × tamp=87360&name=room

On_connect: / v1/rtmp/on_connect app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178396146&call=connect

On_play: / v1/rtmp/on_play app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=569&call=play&name=room&start=4294966296&duration=0&reset=0&pass=12345

On_done: / v1/rtmp/on_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=569&call=done&name=room&pass=12345

On_play_done: / v1/rtmp/on_play_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=569&call=play_done&name=room&pass=12345

On_connect: / v1/rtmp/on_connect app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&epoch=178403666&call=connect

On_play: / v1/rtmp/on_play app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=574&call=play&name=room&start=4294966296&duration=0&reset=0&pass=12345

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=100 × tamp=97311&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=574&call=update_play&time=10 × tamp=105504&name=room&pass=12345

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=110 × tamp=107199&name=room

On_done: / v1/rtmp/on_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=574&call=done&name=room&pass=12345

On_play_done: / v1/rtmp/on_play_done app=rtmp&flashver=&swfurl=&tcurl=rtmp://rtmp.wunaozai.com:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=574&call=play_done&name=room&pass=12345

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=120 × tamp=117344&name=room

On_update: / v1/rtmp/on_update app=rtmp&flashver=FMLE/3.0%20 (compatible%3B%20FMSc/1.0) & swfurl=&tcurl=rtmp://120.24.210.62:8081/rtmp&pageurl=&addr=113.74.127.195&clientid=547&call=update_publish&time=130 × tamp=122815&name=room

(3) the client pushes the stream. I use this http://www.iavcast.com/html/ruanjian/iavcast.html for the push software here.

(4) on mobile, I use Tencent Video Cloud in WeChat Mini Programs to test RTMP in this Mini Program.

(5) nginx-rtmp log

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1 113.74.127.195 [05/Aug/2018:16:18:08 + 0800] PUBLISH "rtmp"room"-2646572 687 "" FMLE/3.0 (compatible; FMSc/1.0) "(1m 46s)

2 113.74.127.195 [05/Aug/2018:16:19:49 + 0800] PLAY "rtmp"room"pass=12345"-413542 "(4s)

3 113.74.127.195 [05/Aug/2018:16:19:57 + 0800] PLAY "rtmp"room"pass=12345"-413542 "(4s)

4 113.74.127.195 [05/Aug/2018:16:20:05 + 0800] PLAY "rtmp"room"pass=12345"-413542 "(4s)

5 113.74.127.195 [05/Aug/2018:16:20:13 + 0800] PLAY "rtmp"room"pass=12345"-413542 "(4s)

6 113.74.127.195 [05/Aug/2018:16:30:39 + 0800] PLAY "rtmp"room"pass=12345"-413871 "(4s)

7 113.74.127.195 [05/Aug/2018:16:30:54 + 0800] PLAY "rtmp"room"pass=12345"-413 647163 "(12s)

8 113.74.127.195 [05/Aug/2018:16:31:08 + 0800] PUBLISH "rtmp"room"-4961955 409 "" FMLE/3.0 (compatible; FMSc/1.0) "(1m 30s)

9 113.74.127.195 [05/Aug/2018:23:06:47 + 0800] PUBLISH "rtmp"room"-425763 529 "" FMLE/3.0 (compatible; FMSc/1.0) "(13s)

10 113.74.127.195 [05/Aug/2018:23:08:29 + 0800] PLAY "rtmp"room"pass=12345"-413871 "(4s)

11 113.74.127.195 [05/Aug/2018:23:08:37 + 0800] PLAY "rtmp"room"pass=12345"-413871 "(4s)

12 113.74.127.195 [05/Aug/2018:23:08:45 + 0800] PLAY "rtmp"room"pass=12345"-413871 "(4s)

13 113.74.127.195 [05/Aug/2018:23:09:05 + 0800] PLAY "rtmp"room"pass=12345"-413 926026 "(17s)

14 113.74.127.195 [05/Aug/2018:23:09:30 + 0800] PUBLISH "rtmp"room"-7061016 409 "" FMLE/3.0 (compatible; FMSc/1.0) "(2m 20s)

5. RTMP authentication method

Generally speaking, in order to prevent it from being used by others and security considerations, it is necessary to authenticate the RTMP. If authentication is special, you can modify the source code of nginx-rtmp-module, and then modify it. In fact, you can add an auth function, which can query the database and so on, and then decide whether the return of 0 is successful or-1 indicates failure.

In addition to the way mentioned above, it can also be done in a simple way, which is the HTTP callback mentioned above. If the HTTP status code returned by the HTTP callback is 2xx, it is successful. If the status code of 5xx is returned, it means failure. In that case, the server is disconnected from the RTMP.

It was in rtmp://rtmp.wunaozai.com/rtmp_live/room?username=username&password=password.

As for the implementation, it is not available yet, just judge the parameters for each request in the SpringBoot project. If you have the opportunity to write in detail later, associate with the Redis database to achieve the room number function. But I may not be able to write, because it's actually not difficult. Even if the whole process runs smoothly, there is still a lot of code to write, so it's not good to post too much code in the blog. The most important thing of a blog is to provide ideas. The actual implementation should be implemented in the project.

6. Other

Here are some configuration instructions and examples

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Application creates a RTMP application, which is a little different from http's location

Timeout 60s

Stocket timeout can be combined with keepalive and ping values to prevent the server from being in the state of listening and connecting clients for a long time, and to quickly turn off socket.

Ping 3m

Ping_timeout 30s

The protocol used by RTMP ping to check the active connection. Send a special packet remote connection and expect a reply within the time specified by ping_timeout. If no reply is received, the connection is disconnected.

Max_streams 32

Set the maximum number of RTMP streams and the maximum limit for single-class data. The default is 32.

Ack_window 5000000

Set the size of the RTMP window

Chunk_size 4096

The larger the block size setting value, the smaller the CPU load.

Max_queue

Maximum number of queues, which is generally available by default

Max_message 1M

Enter the maximum size of the data message. All input data messages are saved in memory, waiting for the streaming media to be forwarded. In theory, the incoming message can be very large and have a great impact on the stability of the server, so it is generally OK by default.

Out_queue

Out_cork

Buflen 5s

Sets the default buffer length. Usually the client sends a pre-playback RTMP set_buflen command and resets the setting

access control

Access

Allow/deny

Allow publishing / playback from specified address or all addresses

Allow public 127.0.0.1

Deny publish all

Allow play 192.168.0.0/24

Deny play all

Exec command

Exce

Exec_options on

Start some exec instruction options to interfere with the entire RTMP stream through some exec events

You can be careful with some external codec functions.

Exec ffmpeg- I rtmp://localhost?src/$name-vcodec libx264-vprofile baseline-g 10-s 300x200-acodec libfaac-ar 44100-ac 1-f flv rtmp://localhost/hls/$name 2 > > / var/log/ffmpeg-$name.log

Exce_statc

Similar to exce, it is a static command and does not support passing context parameters

Exec_kill_signal term

Exec_kill_signal user1

Exec_kill_signal 3

Exec_pull

Exec_push

Exec_publish

Specifies that external commands with parameters are to be executed at the release event.

Exec_play

Specify and execute external commands in the open event

Exec_play_done

Specifies that you want to execute an external command when the open completion event is opened

Exec_publish_done

Exec_record_done

Examples

Exec_play bash-c "echo $addr $pageurl > > / tmp/clients"

Exec_publish base-c "echo $addr $flashver > > / tmp/publishers"

Transcriptional

Exec_record_done ffmpeg-y-I $path-acodec libmp31ame-ar 44100-ac 1-vcodec libx264 $dirname/$basename.mp4

Live mode

Live on

Switch the live broadcast mode, that is, one-to-many broadcasting

Meta on/copy/off

Fantasy sends metadata to the client default on

Interleave on/off

Switch crossover mode. In this mode, audio and video are transmitted in the same RTMPchunk stream. Default is off

Wait_key on | off

Make the video stream start at a Keyframe. The default is off.

Wait_video on | off

Disable audio before a video frame is sent. Default off

Combined with wait_key/wait_video so that the client can receive video keyframes with all other data. However, this increases the connection delay. However, the delay can be reduced by adjusting the key frame interval in the codec.

Publish_notify on

Send NetStream.Publish.Start and NetStream.Publish.Stop to the user. Default off

Drop_idle_publisher 10s

Terminates a publishing connection that is idle (no audio or video) for a specified period of time. The default is off. Note that this only works for connections in release mode (after sending the publish command)

Sync 10ms

Synchronize audio and video streams. If the user does not have enough bandwidth to receive the publishing rate, the server will discard some frames. This will cause synchronization problems. When the timestamp difference exceeds the value specified by sync, an absolute frame will be sent to solve the problem. The default is 300ms.

Play_restart off

Enables nginx-rtmp to send NetStream.Play.Start and NetStrem.Play.Stop to each user when publishing starts or stops. If closed, each user can only receive the notification at the beginning and end of the playback. Default is on

Record mode

Record off | all | audio | video | keyframes | manual

Switch recording mode and stream can be recorded to flv file

Off does not record

All recording audio and video

Audio

Video

Keyframes only records key video frames

Manual does not start recording automatically, but uses the control interface to start and stop.

Record_path / tmp/rec

Specify the directory where the recorded flv files are stored

Record_suffix -% d-%b-%y-%T.flv

Recording suffix strftime format

Record_unique on | off

Whether to add a timestamp to the recorded file to prevent the file from being overwritten. Default off

Record_append on | off

Toggles file attachment mode. When on, the new data is appended to the old file during recording. Default off

Record_lock on | off

Lock the file and call the system's fcntl

Record_max_size 128K

Set the maximum value of the recorded file

Record_max_frames 2

Set the maximum number of video frames per recorded file

Record_interval 1s/15m

Restart recording after the time specified in this instruction. The default off setting of 0 means that there is no delay in recording. If record_unique is off, all records will be written to the same file. Otherwise, different files will be distinguished by timestamps.

Record_notify on | off

Fantasy sends NetStream.Record.Start and NetStream.Record.Stop status information onStatus to the publisher when a recording start or stop file is defined.

Application

Application rtmp {

Live on

Record all

Record_path / var/rec

Recorder audio {

Record audio

Record_suffix .audio.flv

}

Recorder chunked {

Record all

Record_interval 15s

Record_path / var/rec/chunked

}

}

Create a recording block. You can create multiple records in a single application.

VOD Media

Play dir | http://loc

Play the flv or mp4 file with the specified directory or HTTP address. Note that HTTP playback does not start until the entire file has been downloaded. Multiple video addresses can be played on the same play (for load). The MP4 format can only be played when both codec and RTMP support it. The common one is H264/AAC.

Application vod {

Play / var/flvs

}

Application vod_http {

Play http://localhost/vod;

}

Play_temp_path / www

Sets the path where the remote VOD file is copied after the play_temp_path is fully downloaded. Disable this feature if the value is null.

Play_local_path dir

Set the remote storage VOD file path before playback, default / tmp

Play_local_path / tmp/videos

Paly / tmp/videos http://localhost/videos

Means to play the video. Play the local cache first. If not, download the video from localhost/videos to the local / tmp/videos and then play it.

Relay mode

Pull url [key=value]

Create a pull relay. Mainly pull streaming media from remote servers. And reissue it.

Url syntax [rtmp://] host [: port] [/ app [/ playpath]] if the application cannot be found, the local application name will be used, and if the playpath cannot be found, the current stream name will be used for that long.

The parameters are as follows (using Key=Value mode)

App explicitly application name

The name of the bending stream that Name bundles to relay. If empty, all local streams in application will be used

TcUrl

PageUrl

SwfUrl

FlashVer

PlayPath

Live

Start

Stop

Static

Pull rtmp://cdn.example.com/main/ch?id=1234 name=channel

Push url [key=value]

Similar to pull, except that push pushes the publication stream to a remote server.

Push_reconnect 1s

After disconnecting, the waiting time for money to reconnect in push is 3 seconds by default.

Session_relay on

Toggles session relay mode. Relay is destroyed when closed in this case.

Notify mode

This function is mainly to provide HTTP callback. When sending some connection operation, an HTTP request is sent asynchronously. Command processing is suspended until it returns the result code. When HTTP returns the 2xx success status code, the RTMP session continues. The 3xx status code redirects the RTMP to another application that was retrieved back from the HTTP, otherwise the connection is lost. Other status codes, disconnect. It is currently used for simple authentication.

On_connect url

Set the HTTP connection callback. When the customer distributes the connection command.

Example:

On_connect http://localhost/my_auth;

Location / on_connect {

If ($arg_flashver! = "my_secret_flashver") {

Rewrite ^. * $fallback?permanent

}

}

On_play url

Set HTTP playback callback. When the distribution customer distributes the playback command.

Http {

Location / redirect {

Rewrite ^. * $newname?permanent

}

}

Rtmp {

Application myqpp {

Live on

On_play http://localhost/redirect;

}

}

On_publish

On_doone

On_play_done

On_publish_done

On_record_done

On_update

Notify_update_timeout

Set on_update callback time

Notify_update_strict on | off

Notify_relay_redirect on

Notify_method get

Sets the HTTP method notification, which defaults to the POST content type of application/x-www-form-urlencodeed. Sometimes you may need the GET method to handle the call in the http {} section of the nginx. In this case, you can use the arg_* variable to access the parameters.

For example, if method is get

Location / on_play {

If ($arg_pageUrl ~ * localhost) {

Return 200

}

Return 500

}

HLS mode

Hls on | off

Enable application to switch HLS protocol for live broadcasting

Hls_path / tmp/hls

Set up HLS playlists and segmented directories. This directory must exist before nginx starts.

Hls_fragment 15s

Set the length of HLS segments, which defaults to 5 seconds, which has a great impact on the LVB delay.

Hls_playlist_length 20m

Sets the length of the HLS playlist. The default is 30 seconds. This has something to do with live caching.

Hls_sync time

Sets the HLS timestamp synchronization threshold. Default 2ms. This feature prevents noise from switching from low-resolution RTMP (1KHz) to high-resolution MPEG-TS (90KHz).

Hls_continuous on | off

Toggles HLS continuous mode, which defaults to off.

Hls_nested on | off

Toggles HLS nesting mode. Default off.

Hls_cleanup on | off

Toggles HLS cleanup. Default on

AccessLog log

Access_log off | path [format_name]

Log_format new_format'$remote_addr'

Access_log logs/rtmp_access.log new_format

Log_format specifies the log format

Creates the specified log format. The log format looks a lot like the nginx HTTP log format. Several variables supported in the log format are:

* connection-number of connections.

* remote_addr-client address.

* app-application name.

* name-the last stream name.

* args-the last stream playback / publishing parameter.

* flashver-client flash version.

* swfurl-client swfurl.

* tcurl-client tcUrl.

* pageurl-client page url.

* command-playback / release commands sent by the client: NONE, PLAY, PUBLISH, PLAY+PUBLISH.

* bytes_sent-the number of bytes sent to the client.

* bytes_received-number of bytes received from the client.

* time_local-the local time when the client connection ends.

* session_time-the number of seconds of continuous connection.

* session_readable_time-duration in readable format.

The default log format is called combined. Here is the definition of this format:

$remote_addr [$time_local] $command "$app"$name"$args"-

$bytes_received $bytes_sent "$pageurl"$flashver" ($session_readable_time)

Limits restriction

Max_connections number

Set the maximum number of connections to the rtmp engine. Default is off.

Application hls {

Live on

Hls on

Hls_path / tmp/hls

Hls_fragment 15s

}

This is the answer to the question on how to use Nginx-rtmp to achieve the real-time streaming effect of live media. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more relevant knowledge.

Original link: https://www.cnblogs.com/wunaozai/p/9427730.html

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