[FFmpeg-trac] #2753(avcodec:new): MPNG artefacts
FFmpeg
trac at avcodec.org
Thu Jul 4 22:20:09 CEST 2013
#2753: MPNG artefacts
--------------------------------------+---------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Keywords: png
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
--------------------------------------+---------------------------------
The sample from ticket #2618 - http://samples.ffmpeg.org/PNG-seq/mpng.avi
- shows artefacts.
{{{
$ ffmpeg -i mpng.avi out.avi
ffmpeg version N-54438-gf0bcb13 Copyright (c) 2000-2013 the FFmpeg
developers
built on Jul 4 2013 17:17:06 with gcc 4.7 (SUSE Linux)
configuration:
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.100 / 55. 18.100
libavformat 55. 11.100 / 55. 11.100
libavdevice 55. 2.100 / 55. 2.100
libavfilter 3. 78.100 / 3. 78.100
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from 'mpng.avi':
Duration: 00:00:04.00, start: 0.000000, bitrate: 8987 kb/s
Stream #0:0: Video: png (MPNG / 0x474E504D), rgba, 160x120 [SAR
2834:2834 DAR 4:3], 40 tbr, 40 tbn, 40 tbc
[mpeg4 @ 0x2f5ebe0] too many threads/slices (9), reducing to 8
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf55.11.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 160x120 [SAR
1:1 DAR 4:3], q=2-31, 200 kb/s, 40 tbn, 40 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> mpeg4)
Press [q] to stop, [?] for help
Input stream #0:0 frame changed from size:160x120 fmt:rgba to size:160x120
fmt:rgb24
Input stream #0:0 frame changed from size:160x120 fmt:rgb24 to
size:160x120 fmt:pal8
Input stream #0:0 frame changed from size:160x120 fmt:pal8 to size:160x120
fmt:gray
frame= 160 fps=0.0 q=6.6 Lsize= 206kB time=00:00:04.00 bitrate=
420.9kbits/s
video:196kB audio:0kB subtitle:0 global headers:0kB muxing overhead
4.825182%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2753>
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