Hi,
I'm using this animated GIF as input http://gosper.org/sidereal.gif
and process it with the most simple FFmpeg command line:
ffmpeg -i sidereal.gif -y out.gif
Why are the colors wrong in the output?
I did already try to add -vf format=pix_fmts=rgb24 but the output is
the same.
Michael
C:\Users\mKoch\Desktop>c:\ffmpeg\ffmpeg -i sidereal.gif -y out.gif
ffmpeg version N-94982-gea673a0edb Copyright (c) 2000-2019 the FFmpeg
developers
built with gcc 9.2.1 (GCC) 20190918
configuration: --enable-gpl --enable-version3 --enable-sdl2
--enable-fontconfi
g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d
--enable-libb
luray --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-libshine --e
nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame
--enable
-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 -
-enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
--enable-gmp --enab
le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc
--enable-libmysofa --en
able-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-ffnvcode
c --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
--enable-dxva2 -
-enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 35.100 / 56. 35.100
libavcodec 58. 58.101 / 58. 58.101
libavformat 58. 32.104 / 58. 32.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.102 / 7. 58.102
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, gif, from 'sidereal.gif':
Metadata:
comment : Created by Wolfram Mathematica 9.0 : www.wolfram.com
Duration: 00:00:24.10, start: 0.000000, bitrate: 2782 kb/s
Stream #0:0: Video: gif, bgra, 1000x1000, 10 fps, 10 tbr, 100 tbn,
100 tbc
Stream mapping:
Stream #0:0 -> #0:0 (gif (native) -> gif (native))
Press [q] to stop, [?] for help
Output #0, gif, to 'out.gif':
Metadata:
comment : Created by Wolfram Mathematica 9.0 : www.wolfram.com
encoder : Lavf58.32.104
Stream #0:0: Video: gif, bgr8, 1000x1000, q=2-31, 200 kb/s, 10 fps,
100 tbn,
10 tbc
Metadata:
encoder : Lavc58.58.101 gif
frame= 19 fps=0.0 q=-0.0 size= 210kB time=00:00:01.81 bitrate=
950.2kbits/
frame= 38 fps= 36 q=-0.0 size= 256kB time=00:00:03.71 bitrate=
565.3kbits/
frame= 56 fps= 36 q=-0.0 size= 512kB time=00:00:05.51 bitrate=
761.2kbits/
frame= 74 fps= 36 q=-0.0 size= 768kB time=00:00:07.31 bitrate=
860.7kbits/
frame= 93 fps= 36 q=-0.0 size= 1024kB time=00:00:09.21 bitrate=
910.8kbits/
frame= 112 fps= 36 q=-0.0 size= 1024kB time=00:00:11.11 bitrate=
755.1kbits/
frame= 131 fps= 36 q=-0.0 size= 1280kB time=00:00:13.01 bitrate=
806.0kbits/
frame= 150 fps= 36 q=-0.0 size= 1536kB time=00:00:14.91 bitrate=
843.9kbits/
frame= 169 fps= 36 q=-0.0 size= 1792kB time=00:00:16.81 bitrate=
873.3kbits/
frame= 187 fps= 36 q=-0.0 size= 2048kB time=00:00:18.61 bitrate=
901.5kbits/
frame= 206 fps= 36 q=-0.0 size= 2304kB time=00:00:20.51 bitrate=
920.3kbits/
frame= 225 fps= 36 q=-0.0 size= 2304kB time=00:00:22.41 bitrate=
842.2kbits/
frame= 241 fps= 36 q=-0.0 Lsize= 2688kB time=00:00:24.01 bitrate=
917.0kbits
/s speed=3.57x
video:2688kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing
overhead: 0.000727%
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