[FFmpeg-user] Delay between the first packet and last packed in the muxing queue

Matej Mailing mailing at tam.si
Fri Dec 5 08:20:15 CET 2014


Hi,

when muxing the screen capture with the live mp3 stream, it sometimes
happens that live mp3 stream becomes unavailable for a short moment
(due to routing issues etc.) and when this happens, the error
"http://mp3.rtvslo.si/val202: Unknown error" pops up. After this error
is shown it takes about 10 seconds to start popping up messages:
[mpegts @ 0000000002b93500] Delay between the first packet and last
packet in the muxing queue is 10100000 > 10000000: forcing output
    Last message repeated 4 times
frame=102640 fps= 10 q=2.0 size= 1307240kB time=02:51:03.80 bitrate=1043.4kbits/
[mpegts @ 0000000002b93500] Delay between the first packet and last
packet in the muxing queue is 10100000 > 10000000: forcing output
    Last message repeated 4 times
frame=102645 fps= 10 q=2.0 size= 1307371kB time=02:51:04.30 bitrate=1043.4kbits/
[mpegts @ 0000000002b93500] Delay between the first packet and last
packet in the muxing queue is 10100000 > 10000000: forcing output
    Last message repeated 4 times

This is the command we are using:
ffmpeg -loglevel debug -rtbufsize 2000M -threads 4 -vsync 0 -f dshow
-i video="UScreenCapture" -re -ss 1 -rtbufsize 900M -vsync 0 -i
"http://mp3.rtvslo.si/val202" -acodec copy -vcodec mpeg2video -s
720x576 -qscale:v 2 -r 10 -f mpegts -b:v 700k -minrate:v 700k -map 0:0
-map 1:0 z:\testinfo\file.ts


The sound is gone then while the video remains and those errors
continue endlessly.
I would like that mp3 stream resumes after some network issues disable
its' availability for a short time - there is no synchronization
between video and audio required (they are two independent sources).

Thanks,
Matej


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