New submission from johnny <johnny666...@sonnenkinder.org>:
when decoding the h264 sample file i'm attaching here, ffmpeg produces errors
(see below). the visual quality is also not ok; when running ffmplay on this
file, you can see artefacts in the moving bar. the same file is decoded just
fine by a commercial codec (coreavc).
$ ./ffmpeg -i tandberg.h264 -vcodec rawvideo tandberg.avi
FFmpeg version SVN-r23885, Copyright (c) 2000-2010 the FFmpeg developers
built on Jun 29 2010 14:38:57 with gcc 4.3.2
configuration:
libavutil 50.19. 0 / 50.19. 0
libavcodec 52.78. 0 / 52.78. 0
libavformat 52.71. 0 / 52.71. 0
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.20. 1 / 1.20. 1
libswscale 0.11. 0 / 0.11. 0
[h264 @ 0x90b3710] number of reference frames exceeds max (probably corrupt
input), discarding one
Last message repeated 77 times
[h264 @ 0x90b3710] mmco: unref short failure
[h264 @ 0x90b2510] max_analyze_duration reached
[h264 @ 0x90b2510] Estimating duration from bitrate, this may be inaccurate
Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1)
-> 25.00 (50/2)
Input #0, h264, from '/tmp/tandberg.h264':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264, yuvj420p, 544x576 [PAR 64:33 DAR 544:297], 50 fps,
25 tbr, 1200k tbn, 50 tbc
Output #0, avi, to '/tmp/tandberg.avi':
Metadata:
ISFT : Lavf52.71.0
Stream #0.0: Video: rawvideo, yuvj420p, 544x576 [PAR 64:33 DAR 544:297],
q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
[h264 @ 0x90b3710] number of reference frames exceeds max (probably corrupt
input), discarding one
Last message repeated 77 times
[h264 @ 0x90b3710] mmco: unref short failure
Last message repeated 2 times 35349kB time=3.08 bitrate=94019.7kbits/s dup=0
drop=75
[h264 @ 0x90b3710] missing picture in access unit
frame= 111 fps= 54 q=0.0 Lsize= 50957kB time=4.44 bitrate=94018.4kbits/s
dup=0 drop=110
video:50949kB audio:0kB global headers:0kB muxing overhead 0.016139%
File 'tandberg.h264' not attached - you can download it from
https://roundup.ffmpeg.org/file961.
----------
files: tandberg.h264
messages: 10990
priority: normal
status: new
substatus: new
title: cannot decode h.264 stream
type: bug
________________________________________________
FFmpeg issue tracker <iss...@roundup.ffmpeg.org>
<https://roundup.ffmpeg.org/issue2050>
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