New submission from Michael N. Pritula <prit...@yandex-team.ru>:

I have file (attached) with mpeg1video and MPEG-1 Layer 2 audio. It plays well
by VLC 1.1.4.
It decoded well by FFmpeg svn revision 18021, but using r23285, r25413 and
latest r25603 FFmpeg misinterprets input as psxstr with adpcm_xa audio stream,
after transcoding there is only noise.
$ ffmpeg -i mpeg1_mp2_regres
FFmpeg version SVN-r25603, Copyright (c) 2000-2010 the FFmpeg developers
  built on Oct 29 2010 19:47:30 with gcc 4.1.2 20061115 (prerelease) (Debian
4.1.1-21)
  configuration: --cc='ccache gcc'
--prefix=/home/pritula/wNewFfmpeg/package-root --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3
--disable-yasm --enable-libfaac --enable-libvorbis --enable-libtheora
--enable-libxvid --enable-libx264 --enable-libschroedinger
--disable-encoder=libschroedinger --enable-libgsm --enable-libnut --enable-gpl
--enable-nonfree --enable-postproc --enable-pthreads --enable-avfilter
--enable-shared --extra-cflags='-I/home/pritula/wNewFfmpeg/package-root/include
-g' --extra-ldflags=-L/home/pritula/wNewFfmpeg/package-root/lib
  libavutil     50.32. 3 / 50.32. 3
  libavcore      0. 9. 1 /  0. 9. 1
  libavcodec    52.93. 0 / 52.93. 0
  libavformat   52.84. 0 / 52.84. 0
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.53. 0 /  1.53. 0
  libswscale     0.12. 0 /  0.12. 0
  libpostproc   51. 2. 0 / 51. 2. 0
[psxstr @ 0x8069560] Invalid parameters 33 1 -1157562368
[psxstr @ 0x8069560] Invalid parameters 33 2305 -1157562368
[psxstr @ 0x8069560] Invalid parameters 33 4609 -1107230720
[psxstr @ 0x8069560] Invalid parameters 33 7169 -1107230720 
... a lot of similar messages ...
[psxstr @ 0x8069560] Invalid parameters 289 12103 -536805376
[psxstr @ 0x8069560] Invalid parameters 289 14407 -536805376
[psxstr @ 0x8069560] Estimating duration from bitrate, this may be inaccurate
Input #0, psxstr, from 'mpeg1_mp2_regres':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Audio: adpcm_xa, 18900 Hz, 2 channels, s16
At least one output file must be specified
File 'mpeg1_mp2_regres' not attached - you can download it from 
https://roundup.ffmpeg.org/file1147.

----------
files: mpeg1_mp2_regres
messages: 12416
priority: normal
status: new
substatus: new
title: mpeg1video/mp2 decoding regression
type: bug

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<https://roundup.ffmpeg.org/issue2334>
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