如何从RTSP生成HTTP流

Question

我有LRP相机，它在rtsp://172.16.4.6中产生RTSP流。我使用VLC来查看此流。然后我需要在http://中使用ALPR Daemon来传递流，以识别摄像头捕获的车牌。根据中的文档，应该只有http://。因此，使用VLC，我试图将其转换/转码为适当的格式。问题是什么，我不熟悉这个领域，没有时间学习基础知识。

我在有port 80和http://127.0.0.1地址的ubuntu上安装了apache2。然后，我尝试使用documentation https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/中的一些方法，然后尝试$vlc -I http rtsp://172.16.4.6:554/HighResolutionVideo :sout='#transcode{vcodec=MJPG,vb=800,fps=5}:std{access=http{mime=multipart/x-mixed-repace},mux=mpjpeg,dst=127.0.0.1:80/go.mjpg,delay=0}'

但是我有这个错误日志：

 [00007f5fb0001268] core access out error: socket bind error: Permission denied
 [00007f5fb0001268] core access out error: cannot create socket(s) for HTTP host
 [00007f5fb0001268] access_output_http access out error: cannot start HTTP server
 [00007f5fb0003388] stream_out_standard stream out error: no suitable sout access module for `http{mine=multipart/x-mixed-repace}/mpjpeg://172.0.0.1:80/go.mjpg'
 [00007f5fb0000b18] core stream output error: stream chain failed for `transcode{vcodec=MJPG,vb=800,fps=5}:std{access=http{mine=multipart/x-mixed-repace},mux=mpjpeg,dst=172.0.0.1:80/go.mjpg,delay=0}'
 [00007f5fb42929f8] core input error: cannot start stream output instance, aborting
 [00007f5fb0003388] access_output_http access out: Consider passing --http-host=IP on the command line instead.
 [00007f5fb0003388] core access out error: socket bind error: Permission denied
 [00007f5fb0003388] core access out error: cannot create socket(s) for HTTP host
 [00007f5fb0003388] access_output_http access out error: cannot start HTTP server
 [00007f5fb0001268] stream_out_standard stream out error: no suitable sout access module for `http{mine=multipart/x-mixed-repace}/mpjpeg://172.0.0.1:80/go.mjpg'
 [00007f5fb0000b18] core stream output error: stream chain failed for `transcode{vcodec=MJPG,vb=800,fps=5}:std{access=http{mine=multipart/x-mixed-repace},mux=mpjpeg,dst=172.0.0.1:80/go.mjpg,delay=0}'
 [00007f5fb42929f8] core input error: cannot start stream output instance, aborting

Answer 1

我认为你在repace中有一个拼写错误，试试这个：

--sout #transcode{vcodec=MJPG,venc=ffmpeg{strict=1}}:standard{access=http{mime=multipart/x-mixed-replace;boundary=--7b3cc56e5f51db803f790dad720ed50a},mux=mpjpeg,dst=:80/go.mjpg}