Opened 6 years ago
Closed 6 years ago
#7173 closed defect (duplicate)
Incorrect last frames for vc1 conformance sample
| Reported by: | Carl Eugen Hoyos | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avcodec |
| Version: | git-master | Keywords: | vc1 |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
The last frames of the conformance sample SA10100.vc1 are not bit-exact when decoded with the software decoder, works fine with -hwaccel vdpau here.
$ ffmpeg -i SA10100.vc1 -f framecrc -
ffmpeg version N-90869-g2d7ba3a Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.4.0 (GCC)
configuration: --enable-gpl
libavutil 56. 17.100 / 56. 17.100
libavcodec 58. 19.100 / 58. 19.100
libavformat 58. 13.100 / 58. 13.100
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 20.100 / 7. 20.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
[vc1 @ 0x2413400] Failed to open codec in avformat_find_stream_info
[NULL @ 0x2414bc0] ignoring invalid SAR: 0/0
Input #0, vc1, from 'SA10100.vc1':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: vc1 (Advanced), yuv420p(top first), 720x480 [SAR 1:1 DAR 3:2], 25 tbr, 1200k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (vc1 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
#software: Lavf58.13.100
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 720x480
#sar 0: 1/1
Output #0, framecrc, to 'pipe:':
Metadata:
encoder : Lavf58.13.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480 [SAR 1:1 DAR 3:2], q=2-31, 103680 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.19.100 rawvideo
0, 0, 0, 1, 518400, 0x5c9e220b
0, 2, 2, 1, 518400, 0x56b2482b
0, 3, 3, 1, 518400, 0xfcce8f91
0, 4, 4, 1, 518400, 0x5240aa52
0, 5, 5, 1, 518400, 0x5336b65e
0, 6, 6, 1, 518400, 0x6c54cc5c
0, 7, 7, 1, 518400, 0x6c54cc5c
0, 8, 8, 1, 518400, 0x2d014749
0, 9, 9, 1, 518400, 0x2d014749
0, 10, 10, 1, 518400, 0x19ac7442
0, 11, 11, 1, 518400, 0x19ac7442
0, 12, 12, 1, 518400, 0x19ac7442
0, 13, 13, 1, 518400, 0x19ac7442
0, 14, 14, 1, 518400, 0x19ac7442
0, 15, 15, 1, 518400, 0x19ac7442
0, 16, 16, 1, 518400, 0x19ac7442
0, 17, 17, 1, 518400, 0x19ac7442
0, 18, 18, 1, 518400, 0x89dac48f
0, 19, 19, 1, 518400, 0x89dac48f
0, 20, 20, 1, 518400, 0x8c1bd7f8
0, 21, 21, 1, 518400, 0x669358d6
0, 22, 22, 1, 518400, 0x5896c6e9
0, 23, 23, 1, 518400, 0xc56ae392
0, 24, 24, 1, 518400, 0x74b6da86
0, 25, 25, 1, 518400, 0x74b6da86
0, 26, 26, 1, 518400, 0xe0c813b5
0, 27, 27, 1, 518400, 0x62cf58d0
0, 28, 28, 1, 518400, 0x62cf58d0
0, 29, 29, 1, 518400, 0x62cf58d0
0, 30, 30, 1, 518400, 0x62cf58d0
frame= 30 fps=0.0 q=-0.0 Lsize= 2kB time=00:00:01.24 bitrate= 12.0kbits/s speed=27.1x
video:15188kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
The output of the reference decoder is different for the last frames:
$ ffmpeg -s 720x480 -i testout.yuv -f framecrc -
ffmpeg version N-90869-g2d7ba3a Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.4.0 (GCC)
configuration: --enable-gpl
libavutil 56. 17.100 / 56. 17.100
libavcodec 58. 19.100 / 58. 19.100
libavformat 58. 13.100 / 58. 13.100
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 20.100 / 7. 20.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
[rawvideo @ 0x3fe9480] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'testout.yuv':
Duration: 00:00:01.20, start: 0.000000, bitrate: 103680 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480, 103680 kb/s, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
Press [q] to stop, [?] for help
#software: Lavf58.13.100
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 720x480
#sar 0: 0/1
Output #0, framecrc, to 'pipe:':
Metadata:
encoder : Lavf58.13.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480, q=2-31, 103680 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.19.100 rawvideo
0, 0, 0, 1, 518400, 0x5c9e220b
0, 1, 1, 1, 518400, 0x56b2482b
0, 2, 2, 1, 518400, 0xfcce8f91
0, 3, 3, 1, 518400, 0x5240aa52
0, 4, 4, 1, 518400, 0x5336b65e
0, 5, 5, 1, 518400, 0x6c54cc5c
0, 6, 6, 1, 518400, 0x6c54cc5c
0, 7, 7, 1, 518400, 0x2d014749
0, 8, 8, 1, 518400, 0x2d014749
0, 9, 9, 1, 518400, 0x19ac7442
0, 10, 10, 1, 518400, 0x19ac7442
0, 11, 11, 1, 518400, 0x19ac7442
0, 12, 12, 1, 518400, 0x19ac7442
0, 13, 13, 1, 518400, 0x19ac7442
0, 14, 14, 1, 518400, 0x19ac7442
0, 15, 15, 1, 518400, 0x19ac7442
0, 16, 16, 1, 518400, 0x19ac7442
0, 17, 17, 1, 518400, 0x89dac48f
0, 18, 18, 1, 518400, 0x89dac48f
0, 19, 19, 1, 518400, 0x8c1bd7f8
0, 20, 20, 1, 518400, 0x669358d6
0, 21, 21, 1, 518400, 0x5896c6e9
0, 22, 22, 1, 518400, 0xc56ae392
0, 23, 23, 1, 518400, 0x74b6da86
0, 24, 24, 1, 518400, 0x74b6da86
0, 25, 25, 1, 518400, 0x572c15d4
0, 26, 26, 1, 518400, 0xac855ca4
0, 27, 27, 1, 518400, 0xac855ca4
0, 28, 28, 1, 518400, 0xac855ca4
0, 29, 29, 1, 518400, 0xac855ca4
frame= 30 fps=0.0 q=-0.0 Lsize= 2kB time=00:00:01.20 bitrate= 12.4kbits/s speed= 122x
video:15188kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Attachments (1)
Change History (2)
by , 6 years ago
| Attachment: | SA10100.vc1 added |
|---|
comment:1 by , 6 years ago
| Resolution: | → duplicate |
|---|---|
| Status: | new → closed |
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Same issue as ticket #7171.