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

[ajay parashar]

Hi,


“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.
**************************************************
logs of ffplay as below:

 ffplay -i 2909_3v.ts 
ffplay version 2.4.1 Copyright (c) 2003-2014 the FFmpeg developers
  built on Sep 29 2014 13:53:35 with gcc 4.8.3 (GCC) 20140624 (Red Hat 4.8.3-1)
  configuration: --enable-gpl --enable-libx264 --enable-shared --disable-static --disable-stripping
  libavutil      54.  7.100 / 54.  7.100
  libavcodec     56.  1.100 / 56.  1.100
  libavformat    56.  4.101 / 56.  4.101
  libavdevice    56.  0.100 / 56.  0.100
  libavfilter     5.  1.100 /  5.  1.100
  libswscale      3.  0.100 /  3.  0.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  0.100 / 53.  0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7faf740008c0] moov atom not found0/0   
2909_3v.ts: Invalid data found when processing input

[root at localhost media_files]#







 
Regards
Ajay
 Parashar
On Monday, 29 September 2014 1:16 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
 


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

> so i use fifo_size option and exectuted below command 
> but while
 processing  ffmpeg hanges itself. Out of
> total 1892 frames it process 1880 frames and then hangs.

I believe this has nothing to do with fifo_size, 
it should also happen without it:
 udp input 
does not expect eof but waits for more input.

>   configuration: --enable-debug --enable-gpl 
> --enable-libx264 --enable-shared --disable-static
> --disable-optimizations --disable-mmx --disable-stripping

I am curious:
Why do you use --disable-optimizations --disable-mmx 
which produce a very slow binary?
Note that --enable-debug is the default.

Carl Eugen

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