[FFmpeg-user] Concatenation of mpg files

[Dzung Nguyen]

Hi,

I tried to cat in ubuntu shell mpg files, but the output file lost timing
information (can't be played, can't seek)

This is mpg video information:

 ffmpeg -i 0.mpg
ffmpeg version git-2013-08-06-a68b6ec Copyright (c) 2000-2013 the FFmpeg
developers
  built on Aug 21 2013 11:58:24 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  libavutil      52. 41.100 / 52. 41.100
  libavcodec     55. 22.100 / 55. 22.100
  libavformat    55. 13.102 / 55. 13.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
Input #0, mpeg, from '0.mpg':
  Duration: 00:02:10.00, start: 0.533367, bitrate: 2899 kb/s
    Stream #0:0[0x1e0]: Video: mpeg1video, yuv420p, 1280x720 [SAR 1:1 DAR
16:9], 104857 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc

So it's mpeg1 encoded, everything is correct. The way I make this video is
using command:

ffmpeg -loop 1 -r 1 -i image.png -q:v 0 -r 29.97 -t 10 0.mpg

What should I change here in the converting from image to video, so that
the mpg files are cattable?