[FFmpeg-trac] #4322(avcodec:new): skip_alpha breaks ffv1 decoding
FFmpeg
trac at avcodec.org
Mon Feb 23 02:29:00 CET 2015
#4322: skip_alpha breaks ffv1 decoding
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Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Keywords: ffv1 alpha
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
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{{{
$ ffmpeg -f lavfi -i testsrc -pix_fmt yuva420p -vcodec ffv1 -t 1 out.avi
}}}
{{{
$ ffmpeg -skip_alpha 1 -i out.avi -f null -
ffmpeg version N-69945-g2280552 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 18.100 / 54. 18.100
libavcodec 56. 22.100 / 56. 22.100
libavformat 56. 22.100 / 56. 22.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.100 / 5. 11.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, avi, from 'out.avi':
Metadata:
encoder : Lavf56.22.100
Duration: 00:00:01.00, start: 0.000000, bitrate: 871 kb/s
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv420p, 320x240, 855
kb/s, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 25 tbn, 25 tbc
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf56.22.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240
[SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc56.22.100 rawvideo
Stream mapping:
Stream #0:0 -> #0:0 (ffv1 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
[null @ 0x3584100] Encoder did not produce proper pts, making some up.
[ffv1 @ 0x3575560] Invalid change of global parameters
[ffv1 @ 0x3576360] Cannot decode non-keyframe without valid keyframe
[ffv1 @ 0x357bfc0] Cannot decode non-keyframe without valid keyframe
[ffv1 @ 0x357e8e0] Cannot decode non-keyframe without valid keyframe
[ffv1 @ 0x3564100] Cannot decode non-keyframe without valid keyframe
[ffv1 @ 0x3566f20] Cannot decode non-keyframe without valid keyframe
[ffv1 @ 0x3589cc0] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x3570040] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x3572960] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x3575560] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x3576360] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x357bfc0] Cannot decode non-keyframe without valid keyframe
Error while decoding stream #0:0: Invalid data found when processing input
[ffv1 @ 0x357e8e0] Invalid change of global parameters
frame= 12 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.48 bitrate=N/A
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/4322>
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