[FFmpeg-user] usage of fifo_size option while receiving udp stream hangs ffmpeg itself

[ajay parashar]

ajay parashar <ajay_382000-at-yahoo.co.in <at> ffmpeg.org> writes:

> “ffmpeg –i udp://226.0.0.1:1234 -map 0:v:1 -map 0:a:0 
> -acodec copy -f mp4 2909_3v.ts” 
> 
> My concern is that the output file 2909_3v.ts is 
> neither playable by vlc nor by ffplay.

Carl Eugen Hoyos <cehoyos at ag.or.at> writes:
>>Remove "-f mp4".
      My video is MPEG4 encoded in transport stream and it is live video. I 
want to capture mpeg4 encoded data so i am using mp4 format , is ther 
any    othet format that can be use to receiving AVC codec data and will 
resolve this issue


>>As said here from time to time, I suspect FFmpeg is not 
>>the best tool to dump transport streams: I suggest you 
>>pipe the udp stream to a file and use FFmpeg later 
>>to convert the file to whatever format you need if you 
>>don't want to keep the transport stream.

As it is live video is it possible that first it dump  to file then simultaneously stream video data to end user ?





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