使用单个ffmpeg实例将多个RTSP流转码为HLS-不起作用 [英] Using a single ffmpeg instance to transcode multiple RTSP streams to HLS - not working

问题描述

我正在尝试使用ffmpeg的单个实例将多个RTSP流转换为HLS.我正在使用的命令是这样的:(我将其分解为多行，因此更易于阅读)

I am trying to use a single instance of ffmpeg to convert multiple RTSP streams to HLS. The command I am using is this: (I've broken it up into multiple lines so its easier to read)

我面临的问题是当我查看生成的ts文件时，ffmpeg正在将相同的视频流(url1)写入目录m1和m2.我究竟做错了什么? url1和url2均有效.如果我将命令分解为两个不同的ffmpeg进程，则可以正常工作.

The problem I am facing is that ffmpeg is writing the same video stream (url1) to both directories m1 and m2 when I look at the generated ts files. What am I doing wrong? Both url1 and url2 are valid. If I break up the command to two different ffmpeg processes it works just fine.

谢谢.

 /usr/local/bin/ffmpeg -i rtsp://url1 -fflags flush_packets 
 -max_delay 2 -flags -global_header -hls_time 2 -hls_list_size 3 
 -hls_segment_filename m1/video%03d.ts -hls_flags delete_segments 
 -vcodec copy -y m1/video1.m3u8 
 -i rtsp://url2 -fflags flush_packets 
 -max_delay 2 -flags -global_header -hls_time 2 -hls_list_size 3 
 -hls_segment_filename m2/video%03d.ts -hls_flags delete_segments 
 -vcodec copy -y m2/video2.m3u8

推荐答案

ffmpeg需要以下格式的语法

ffmpeg requires a syntax of the form

ffmpeg -i input1 -i input2 ... -i inputn output1 output2 ... outputn

设置了-map选项以指示输入到输出的路由.

with -map options set to indicate routing of inputs to outputs.

所以

 -i rtsp://url1 -i rtsp://url2
 -map 0 -fflags flush_packets -max_delay 2 -flags -global_header 
 -hls_time 2 -hls_list_size 3 -hls_segment_filename m1/video%03d.ts 
 -hls_flags delete_segments -vcodec copy -y m1/video1.m3u8
 -map 1 -fflags flush_packets -max_delay 2 -flags -global_header 
 -hls_time 2 -hls_list_size 3 -hls_segment_filename m2/video%03d.ts 
 -hls_flags delete_segments -vcodec copy -y m2/video1.m3u8 

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