[FFmpeg-trac] #2813(avcodec:open): KMVC decoding artefacts http://multimedia.cx/samples/V-codecs/KMVC/baseball1.avi
FFmpeg
trac at avcodec.org
Sun Jul 28 03:48:07 CEST 2013
#2813: KMVC decoding artefacts
http://multimedia.cx/samples/V-codecs/KMVC/baseball1.avi
-------------------------------------+-------------------------------------
Reporter: wohe | Owner:
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: KMVC | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* status: new => open
* reproduced: 0 => 1
* component: undetermined => avcodec
* priority: normal => important
* version: 2.0 => git-master
* keywords: KMVC => KMVC regression
Comment:
For future tickets: Please always provide a failing ffmpeg command line
together with the complete, uncut console output.
Regression since 70b5583.
{{{
$ ffmpeg -i baseball1.avi -qscale 2 out.avi
ffmpeg version N-54992-g63c0113 Copyright (c) 2000-2013 the FFmpeg
developers
built on Jul 28 2013 03:47:03 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 81.103 / 3. 81.103
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from 'baseball1.avi':
Duration: 00:00:15.76, start: 0.000000, bitrate: 2494 kb/s
Stream #0:0: Video: kmvc (KMVC / 0x43564D4B), pal8, 320x200, 25 tbr,
25 tbn, 25 tbc
Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 22050 Hz, mono,
u8, 176 kb/s
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf55.12.102
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x200,
q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 22050 Hz, mono, fltp,
96 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (kmvc -> mpeg4)
Stream #0:1 -> #0:1 (pcm_u8 -> ac3)
Press [q] to stop, [?] for help
[kmvc @ 0x1aed360] Invalid MV
Last message repeated 318 times
frame= 394 fps=0.0 q=2.0 Lsize= 2390kB time=00:00:15.81
bitrate=1238.4kbits/s
video:2181kB audio:185kB subtitle:0 global headers:0kB muxing overhead
1.031435%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2813#comment:1>
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