Hi,
> The player I have shows same artefacts with AmigaRHQ sample.
AmigaRHQ doesn't decode here:
D:\>ffmpegm -i AmigaRHQ -b:v 2000k out.avi
ffmpeg version 3.0.git Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.6.2 (GCC)
configuration: --disable-pthreads --disable-ffprobe --enable-gpl
libavutil 55. 18.100 / 55. 18.100
libavcodec 57. 24.105 / 57. 24.105
libavformat 57. 26.100 / 57. 26.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 34.100 / 6. 34.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[iff @ 0212ce20] Warning: not compiled with thread support, using thread emulati
on
Input #0, iff, from 'AmigaRHQ':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: iff_ilbm (ANIM / 0x4D494E41), rgb0, 320x128, 20 fps, 60
tbr, 60 tbn, 60 tbc
[iff @ 0212dac0] Warning: not compiled with thread support, using thread emulati
on
[mpeg4 @ 024f0a20] Warning: not compiled with thread support, using thread emula
tion
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf57.26.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x128, q=2-31, 200
0 kb/s, 60 fps, 60 tbn, 60 tbc
Metadata:
encoder : Lavc57.24.105 mpeg4
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (iff_ilbm (iff) -> mpeg4 (native))
Press [q] to stop, [?] for help
Error while decoding stream #0:0: Invalid data found when processing input
Last message repeated 343 times
frame= 0 fps=0.0 q=0.0 Lsize= 6kB time=00:00:00.00 bitrate=N/A speed=
0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ove
rhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters i
f used)
Conversion failed!
> What artifacts you see with BabySnakes?
Here is the output from VirtualDub and FFmpeg (with your patch):
http://www.datafilehost.com/d/6e60fb86
There are some visible black artefacts on the snakes.
Regards
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