[FFmpeg-trac] #7172(avcodec:new): vc1 luma and chroma scaling is not supported
FFmpeg
trac at avcodec.org
Sat Apr 28 22:28:18 EEST 2018
#7172: vc1 luma and chroma scaling is not supported
---------------------------------------+---------------------------------
Reporter: cehoyos | Owner:
Type: enhancement | Status: new
Priority: wish | Component: avcodec
Version: git-master | Keywords: vc1
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
---------------------------------------+---------------------------------
Some vc1 conformance samples use an unsupported vc1 feature, works fine
with {{{-hwaccel vdpau}}} here.
{{{
$ ffmpeg -i SA00048.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 @ 0x2757400] Failed to open codec in avformat_find_stream_info
[NULL @ 0x2758bc0] ignoring invalid SAR: 0/0
[NULL @ 0x2758bc0] Luma scaling is not supported, expect wrong picture
[NULL @ 0x2758bc0] Chroma scaling is not supported, expect wrong picture
[NULL @ 0x2758bc0] Luma scaling is not supported, expect wrong picture
[NULL @ 0x2758bc0] Chroma scaling is not supported, expect wrong picture
[vc1 @ 0x2758bc0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x2758bc0] Chroma scaling is not supported, expect wrong picture
[vc1 @ 0x2758bc0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x2758bc0] Chroma scaling is not supported, expect wrong picture
Input #0, vc1, from 'SA00048.vc1':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: vc1 (Advanced), yuv420p(progressive), 220x180 [SAR
1:1 DAR 11:9], 25 tbr, 1200k tbn, 25 tbc
[vc1 @ 0x276a5c0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Chroma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Chroma scaling is not supported, expect wrong picture
Stream mapping:
Stream #0:0 -> #0:0 (vc1 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
[vc1 @ 0x276a5c0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Chroma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Luma scaling is not supported, expect wrong picture
[vc1 @ 0x276a5c0] Chroma scaling is not supported, expect wrong picture
#software: Lavf58.13.100
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 220x180
#sar 0: 1/1
Output #0, framecrc, to 'pipe:':
Metadata:
encoder : Lavf58.13.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 220x180
[SAR 1:1 DAR 11:9], q=2-31, 11880 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.19.100 rawvideo
0, 0, 0, 1, 59400, 0xfeaa569e
0, 1, 1, 1, 59400, 0xfeaa569e
0, 2, 2, 1, 59400, 0xfeaa569e
0, 4, 4, 1, 59400, 0xf9ef56ff
0, 5, 5, 1, 59400, 0x63736e9e
0, 6, 6, 1, 59400, 0x6421b732
0, 7, 7, 1, 59400, 0x689b2818
0, 8, 8, 1, 59400, 0x689b2818
0, 9, 9, 1, 59400, 0xf4878669
0, 10, 10, 1, 59400, 0xf4878669
0, 11, 11, 1, 59400, 0x9c0d0831
0, 12, 12, 1, 59400, 0x9c0d0831
0, 13, 13, 1, 59400, 0x9c0d0831
0, 14, 14, 1, 59400, 0x9c0d0831
0, 15, 15, 1, 59400, 0x9c0d0831
0, 16, 16, 1, 59400, 0x9c0d0831
0, 17, 17, 1, 59400, 0x9c0d0831
0, 18, 18, 1, 59400, 0x9c0d0831
0, 19, 19, 1, 59400, 0x3c54126e
0, 20, 20, 1, 59400, 0x3c54126e
0, 21, 21, 1, 59400, 0xde08a24d
0, 22, 22, 1, 59400, 0x009432cc
0, 23, 23, 1, 59400, 0x5cdcd186
0, 24, 24, 1, 59400, 0xa15c4169
0, 25, 25, 1, 59400, 0x6920e38a
0, 26, 26, 1, 59400, 0x6920e38a
0, 27, 27, 1, 59400, 0xeb538cb8
0, 28, 28, 1, 59400, 0xc0387395
0, 29, 29, 1, 59400, 0xc0387395
0, 30, 30, 1, 59400, 0xc0387395
frame= 30 fps=0.0 q=-0.0 Lsize= 2kB time=00:00:01.24 bitrate=
12.0kbits/s speed= 81x
video:1740kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
Reference decoder output:
{{{
$ ffmpeg -s 220x180 -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 @ 0x2302480] Estimating duration from bitrate, this may be
inaccurate
Input #0, rawvideo, from 'testout.yuv':
Duration: 00:00:01.20, start: 0.000000, bitrate: 11880 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 220x180,
11880 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: 220x180
#sar 0: 0/1
Output #0, framecrc, to 'pipe:':
Metadata:
encoder : Lavf58.13.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 220x180,
q=2-31, 11880 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.19.100 rawvideo
0, 0, 0, 1, 59400, 0xd33656d7
0, 1, 1, 1, 59400, 0xd33656d7
0, 2, 2, 1, 59400, 0xd33656d7
0, 3, 3, 1, 59400, 0xf14552fa
0, 4, 4, 1, 59400, 0xded06f9b
0, 5, 5, 1, 59400, 0xbc5cc1a0
0, 6, 6, 1, 59400, 0x064d407c
0, 7, 7, 1, 59400, 0x064d407c
0, 8, 8, 1, 59400, 0x68e8aae0
0, 9, 9, 1, 59400, 0x68e8aae0
0, 10, 10, 1, 59400, 0x84361b30
0, 11, 11, 1, 59400, 0x84361b30
0, 12, 12, 1, 59400, 0x84361b30
0, 13, 13, 1, 59400, 0x84361b30
0, 14, 14, 1, 59400, 0x84361b30
0, 15, 15, 1, 59400, 0x84361b30
0, 16, 16, 1, 59400, 0x84361b30
0, 17, 17, 1, 59400, 0x84361b30
0, 18, 18, 1, 59400, 0x720a2803
0, 19, 19, 1, 59400, 0x720a2803
0, 20, 20, 1, 59400, 0xb3caaa3a
0, 21, 21, 1, 59400, 0x29ae2cdb
0, 22, 22, 1, 59400, 0x62e8bec5
0, 23, 23, 1, 59400, 0x633f1c42
0, 24, 24, 1, 59400, 0x4e1ab1b8
0, 25, 25, 1, 59400, 0x4e1ab1b8
0, 26, 26, 1, 59400, 0xf50d4e55
0, 27, 27, 1, 59400, 0x0eaf323b
0, 28, 28, 1, 59400, 0x0eaf323b
0, 29, 29, 1, 59400, 0x0eaf323b
frame= 30 fps=0.0 q=-0.0 Lsize= 2kB time=00:00:01.20 bitrate=
12.4kbits/s speed= 322x
video:1740kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7172>
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