当我开始
ffmpeg -y -i rtsp：//mycameraip/video.mp4 -an编解码器复制file.mp4
ffmpeg同时停止。发生了什么事？
返回：
Input #0, rtsp, from 'rtsp://<ip>/video.mp4':
Metadata:
title : QStream
comment : QStreaming Media
Duration: N/A, start: -0.066667, bitrate: N/A
Stream #0:0: Video: mpeg4 (Simple Profile), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 15 tbr, 90k tbn, 15 tbc
Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
Output #0, mp4, to 'file.mp4':
Metadata:
title : QStream
comment : QStreaming Media
encoder : Lavf57.83.100
Stream #0:0: Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 15 tbr, 90k tbn, 90k tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 750 fps=4.2 q=-1.0 Lsize= 345kB time=00:02:59.47 bitrate= 15.8kbits/s speed= 1x
video:336kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.839756%