如何使用ffmpeg将live rtmp流转码为live hls流？ [英] How can we transcode live rtmp stream to live hls stream using ffmpeg?

问题描述

我正在尝试将实时rtmp流转换为hls流实时。

阅读后我有一些想法

< E2％80％93-部分-IV /> http://sonnati.wordpress.com/2011/08/30/ffmpeg-%E2%80%93-the-swiss-army-knife-of-internet-streaming - ％E2％80％93-part-iv /

我可以将live rtmp流转换为hls，但不能在运行时转换。当我运行命令并测试任何hsl文件（.m3u8和.ts），我无法看到，但是当我中断命令并检查我需要hls文件。

我在google上搜索解决方案，但无法得到正确的答案。

任何身体都能帮助我吗？

感谢提前...

解决方案

这是一个简短的HLS流媒体与任何输入文件或流的指南：

我正在关注user1390208的方法，所以我只使用FFMPEG来产生我的服务器接收的rtmp流，以提供HLS 。而不是虚幻/ Wowza / Adob​​e，我使用免费的服务器nginx与rtmp模块，这是很容易设置。这是我简单的说：任何输入文件或流 - > ffmpeg - > rtmp - > nginx服务器 - > HLS - >客户端或更详细：

输入视频文件或流（http，rtmp，whatever） - > ffmpeg转码转换到x.264 + aac，输出到rtmp - > nginx将使用rtmp并为用户（客户端）提供HLS。
所以在客户端，您可以使用VLC或任何连接到由nginx提供的.m3u8文件。

• 我遵循了nginx的此设置指南。


• 这是我的nginx配置文件。



• 这是我如何使用ffmpeg将我的输入文件转码为rtmp：

    ffmpeg -re -i mydirectory / myfile.mkv -c：v libx264 -b：v 5M -pix_fmt yuv420p -c：a：0 libfdk_aac -b：a：0 480k -f flv rtmp：// localhost：12345 / hls / mystream; 
    

  （.mkv是1080p的5.1声音，根据你的输入，你应该使用较低的比特率！ ）

您从哪里获取rtmp流？

• 一个文件？那么你可以使用我的方法。



• 任何具有流Y的服务器X？那么你必须将ffmpeg命令更改为：

    ffmpeg -re -i rtmp：// theServerX / yourStreamY -c：v libx264 -b：v 5M -pix_fmt yuv420p -c：a：0 libfdk_aac -b：a：0 480k -f flv rtmp：// localhost：12345 / hls / mystream; 
    

  或者如果您的rtmp流已经是h.264 / aac编码，可以尝试使用复制选项在ffmpeg中直接将内容流式传输到nginx。

在我的nginx配置文件中看到：

• 我的rtmp服务器有一个名为hls的应用程序。这是描述nginx监听ffmpeg的rtmp流的地方，这就是为什么ffmpeg流到 rtmp：// localhost：12345 / hls / mystream;


• 我的http服务器具有位置/ hls 。这意味着在VLC中，我可以连接到 http：// myServer：80 / hls / mystream.m3u8 来访问HLS流。

一切清楚吗？快乐流！

I am trying to convert a live rtmp stream to hls stream on real time.

I got some idea after reading

http://sonnati.wordpress.com/2011/08/30/ffmpeg-%E2%80%93-the-swiss-army-knife-of-internet-streaming-%E2%80%93-part-iv/

i am able to convert the live rtmp stream to hls but not at run time. when i run the command and test for any hsl files (.m3u8 and .ts) i am not able to see but when i interrupt the command and check there i get the hls files as required.

I searched on google for solution but not able to get proper answer.

Can any body help me?

Thanks in Advance...

解决方案

This is a short guide for HLS streaming with any input file or stream:

I am following user1390208's approach, so I use FFMPEG only to produce the rtmp stream which my server then receives to provide HLS. Instead of Unreal/Wowza/Adobe, I use the free server nginx with the rtmp module, which is quite easy to setup. This is how I do it in short: Any input file or stream -> ffmpeg -> rtmp -> nginx server -> HLS -> Client or more detailed:

input video file or stream (http, rtmp, whatever) --> ffmpeg transcodes live to x.264 + aac, outputs to rtmp --> nginx takes the rtmp and serves a HLS to the user (client). So on the client side you can use VLC or whatever and connect to the .m3u8 file which is provided by nginx.

• I followed this setup guide for nginx.
• This is my nginx config file.

• This is how I use ffmpeg to transcode my input file to rtmp:

  ffmpeg -re -i mydirectory/myfile.mkv -c:v libx264 -b:v 5M -pix_fmt yuv420p -c:a:0 libfdk_aac -b:a:0 480k -f flv rtmp://localhost:12345/hls/mystream;
  

  (the .mkv is 1080p with 5.1 sound, depending on your input, you should use lower bitrates!)

Where do you get the rtmp stream from?

• A file? Then you can use exactly my approach.

• Any server X with a stream Y? Then you have to change the ffmpeg command to:

  ffmpeg -re -i rtmp://theServerX/yourStreamY -c:v libx264 -b:v 5M -pix_fmt yuv420p -c:a:0 libfdk_aac -b:a:0 480k -f flv rtmp://localhost:12345/hls/mystream;
  

  or if your rtmp stream is already h.264/aac encoded, you could try to use the copy option in ffmpeg to stream the content directly to nginx.

As you see in my nginx config file:

• My rtmp server has an "application" called "hls". That's the part that describes where nginx listens to ffmpeg's rtmp stream and that's why ffmpeg streams to rtmp://localhost:12345/hls/mystream;
• My http server has the location /hls. This means in VLC I can connect to http://myServer:80/hls/mystream.m3u8 to access the HLS stream.

Is everything clear? Happy streaming!

这篇关于如何使用ffmpeg将live rtmp流转码为live hls流？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！