New submission from ami_stuff <[email protected]>:

This bug is similar to issue1063 , but this time with MPEG1VIDEO.

When I play this file with FFplay, playback is not smooth (slowdowns and
speedups of video's fps).

This file plays correctly with VLC.

SVN-r16945 is free of this bug
SVN-r18539 is with bug

so bug was introduced between 16945-18539

File uploaded to "ffplay_not_smooth_playback" directory.

--------

C:\>ffmpeg -i ffplay_not_smooth_playback.mpg
FFmpeg version SVN-r18709, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-memalign-hack --prefix=/mingw --cross-prefix=i686-ming
w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e
nable-avisynth --enable-gpl --enable-zlib --enable-bzlib --enable-libgsm --enabl
e-libfaac --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheo
ra --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid -
-enable-libschroedinger --enable-libx264
  libavutil     50. 3. 0 / 50. 3. 0
  libavcodec    52.27. 0 / 52.27. 0
  libavformat   52.32. 0 / 52.32. 0
  libavdevice   52. 2. 0 / 52. 2. 0
  libswscale     0. 7. 1 /  0. 7. 1
  built on Apr 28 2009 04:04:42, gcc: 4.2.4
Input #0, mpeg, from 'ffplay_not_smooth_playback.mpg':
  Duration: 00:04:00.87, start: 0.346711, bitrate: 1395 kb/s
    Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x288 [PAR 178:163 DAR 195
8:1467], 1150 kb/s, 25 tbr, 90k tbn, 25 tbc
    Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16, 224 kb/s
At least one output file must be specified

----------
messages: 5506
priority: normal
status: new
substatus: new
title: FFplay - MPEG1VIDEO not smooth playback
type: bug

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<https://roundup.ffmpeg.org/roundup/ffmpeg/issue1088>
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