[FFmpeg-trac] #490(avformat:open): mpeg stream autodetected as psxstr (was: Invalid pixel format '-1' for mdec video)

[FFmpeg]

#490: mpeg stream autodetected as psxstr
------------------------------------+------------------------------------
             Reporter:  Alex__      |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  important   |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  regression  |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+------------------------------------
Changes (by cehoyos):

 * status:  new => open
 * reproduced:  0 => 1
 * component:  undetermined => avformat
 * priority:  normal => important
 * version:  unspecified => git-master
 * keywords:   => regression


Comment:

 (Workaround is to use ffmpeg -f mpeg -i sample-issue-490.mpg)

 Works fine with 0.5

 {{{
 $ ffmpeg -v 9 -loglevel 99 -i sample-issue-490.mpg
 ffmpeg version N-32709-gf5899f0, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Sep 19 2011 18:13:19 with icc 9999
   configuration: --cc=/opt/intel/composer_xe_2011_sp1.6.233/bin/ia32/icc
   libavutil    51. 16. 0 / 51. 16. 0
   libavcodec   53. 16. 0 / 53. 16. 0
   libavformat  53. 12. 0 / 53. 12. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 43. 2 /  2. 43. 2
   libswscale    2.  1. 0 /  2.  1. 0
 [psxstr @ 0x9016aa0] Format psxstr probed with size=4096 and score=50
 [psxstr @ 0x9016aa0] Invalid parameters 68 4 63627
 [psxstr @ 0x9016aa0] missmatching sector_count
     Last message repeated 3 times
 st:1 removing common factor 8 from timebase
 st:2 removing common factor 8 from timebase
 [psxstr @ 0x9016aa0] missmatching sector_count
     Last message repeated 131 times
 [psxstr @ 0x9016aa0] Could not find codec parameters (Video: mdec,
 57345x9, 0/1)
 [psxstr @ 0x9016aa0] Estimating duration from bitrate, this may be
 inaccurate

 Seems stream 0 codec frame rate differs from container frame rate: inf
 (1/0) -> 15.00 (15/1)
 Input #0, psxstr, from 'sample-issue-490.mpg':
   Duration: N/A, bitrate: N/A
     Stream #0:0, 0, 1/15: Video: mdec, 57345x9, 0/1, 15 tbr, 15 tbn
     Stream #0:1, 18, 16/4725: Audio: adpcm_xa, 37800 Hz, 1 channels, s16
     Stream #0:2, 18, 16/4725: Audio: adpcm_xa, 37800 Hz, 1 channels, s16
 At least one output file must be specified
 }}}

 With psxstr autodetection disabled:
 {{{
 $ ffmpeg -v 9 -loglevel 99 -i sample-issue-490.mpg
 ffmpeg version N-32709-gf5899f0, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Sep 19 2011 18:13:19 with icc 9999
   configuration: --cc=/opt/intel/composer_xe_2011_sp1.6.233/bin/ia32/icc
   libavutil    51. 16. 0 / 51. 16. 0
   libavcodec   53. 16. 0 / 53. 16. 0
   libavformat  53. 12. 0 / 53. 12. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 43. 2 /  2. 43. 2
   libswscale    2.  1. 0 /  2.  1. 0
 [mpeg @ 0x9016aa0] Format mpeg probed with size=8192 and score=52
 [mpeg @ 0x9016aa0] probing stream 0 pp:2500
 [mpeg @ 0x9016aa0] Probe with size=2288, packets=1 detected mpegvideo with
 score=25
 [mpeg @ 0x9016aa0] probing stream 0 pp:2499
 [mpeg @ 0x9016aa0] Probe with size=4576, packets=2 detected mpegvideo with
 score=25
 [mpeg @ 0x9016aa0] probing stream 0 pp:2498
 [mpeg @ 0x9016aa0] probing stream 0 pp:2497
 [mpeg @ 0x9016aa0] Probe with size=9152, packets=4 detected mpegvideo with
 score=51
 [mpeg @ 0x9016aa0] probed stream 0
 [mpeg2video @ 0x901cde0] Unsupported bit depth: 0
 Input #0, mpeg, from 'sample-issue-490.mpg':
   Duration: 00:00:02.11, start: 0.221622, bitrate: 1546 kb/s
     Stream #0:0[0x1e0], 53, 1/90000: Video: mpeg2video (Main), yuv420p,
 480x576 [SAR 8:5 DAR 4:3], 1/50, 2350 kb/s, 25 fps, 25 tbr, 90k tbn, 50
 tbc
     Stream #0:1[0x1c1], 66, 1/90000: Audio: mp2, 44100 Hz, stereo, s16,
 192 kb/s
     Stream #0:2[0x1c0], 66, 1/90000: Audio: mp2, 44100 Hz, stereo, s16,
 192 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/490#comment:1>
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