[FFmpeg-trac] #1901(avcodec:open): cavs artefacts in B frames
FFmpeg
trac at avcodec.org
Thu Jun 26 17:16:27 CEST 2014
#1901: cavs artefacts in B frames
------------------------------------+-----------------------------------
Reporter: ligw_hf | Owner:
Type: defect | Status: open
Priority: minor | Component: avcodec
Version: git-master | Resolution:
Keywords: cavs | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 1 |
------------------------------------+-----------------------------------
Changes (by cehoyos):
* priority: normal => minor
* component: undetermined => avcodec
Comment:
The ugly artefacts were fixed by Yao Wang in e18b48c6
Many warnings are still shown when decoding the sample.
{{{
$ ffmpeg -i stream.avs -t 2 out.avi
ffmpeg version N-64227-ge18b48c Copyright (c) 2000-2014 the FFmpeg
developers
built on Jun 26 2014 17:11:49 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 90.101 / 52. 90.101
libavcodec 55. 68.100 / 55. 68.100
libavformat 55. 44.100 / 55. 44.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 9.100 / 4. 9.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
[cavs @ 0x2525740] weighted prediction not yet supported
[cavs @ 0x2525740] no frame decoded
Input #0, cavsvideo, from 'stream.avs':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: cavs, yuv420p, 720x576, 25 fps, 25 tbr, 1200k tbn,
25 tbc
[avi @ 0x2527720] Using AVStream.codec.time_base as a timebase hint to the
muxer is deprecated. Set AVStream.time_base instead.
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf55.44.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x576,
q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc55.68.100 mpeg4
Stream mapping:
Stream #0:0 -> #0:0 (cavs (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
[cavs @ 0x2526aa0] weighted prediction not yet supported
[cavs @ 0x2526aa0] no frame decoded
Last message repeated 12 times
[cavs @ 0x2526aa0] weighted prediction not yet supported
[cavs @ 0x2526aa0] no frame decoded
Last message repeated 12 times
[cavs @ 0x2526aa0] weighted prediction not yet supported
[cavs @ 0x2526aa0] no frame decoded
Last message repeated 12 times
[cavs @ 0x2526aa0] weighted prediction not yet supported
[cavs @ 0x2526aa0] no frame decoded
Last message repeated 11 times
frame= 49 fps=0.0 q=24.8 Lsize= 190kB time=00:00:02.00 bitrate=
779.2kbits/s
video:183kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 3.678040%
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/1901#comment:6>
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