Re: [FFmpeg-user] wrong colors in animated GIF
Hi Javier, I suspect it is something about the palette generated. I have been using palettegen and paletteuse filters lately, and they have worked out fine for me. This command is working as you might expect: ffmpeg -y -i sidereal.gif -filter_complex "split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" sidereal2.gif (2.8M) In fact, limiting the number of colors to 128, makes the file smaller: ffmpeg -i sidereal.gif -filter_complex "split[s0][s1];[s0]palettegen=max_colors=24[p];[s1][p]paletteuse" sidereal2.1.gif (2.2M) thank you very much for this example. It works as expected. I have already added it to my book: http://www.astro-electronic.de/FFmpeg_Book.pdf Michael ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] wrong colors in animated GIF
Am Do., 26. Sept. 2019 um 15:25 Uhr schrieb Michael Koch : > > Am 26.09.2019 um 15:06 schrieb Carl Eugen Hoyos: > > Am Do., 26. Sept. 2019 um 15:00 Uhr schrieb Michael Koch > > : > > > >> 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 > > Did you also try the following "most simple FFmpeg commamd line"? > > ffmpeg -i sidereal.gif -qscale 2 out.avi > > ok, that works fine. I just wanted to point out that you tested with a highly unusual command line that produced a several-hundred-MB file when it worked in the past. > >> Why are the colors wrong in the output? > > I suspect you didn't read about gif encoding with FFmpeg. > > (This is a known regression but unlikely to get fixed, output > > files were absurdly big.) > > No, I didn't read about gif encoding. I did use other examples with gif > output before and there were no problems. There definitely were problems, you probably missed them. (The colours were off unless you used so few that you couldn't see the difference.) Javier has posted a command line, this is the original blog post: http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html Googling for "ffmpeg gif" shows many pages. Note that your sample file gets significantly smaller without any quality loss. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] wrong colors in animated GIF
Hi Michael, - Mensaje original - > De: "Michael Koch" > Para: "FFmpeg user questions" > Enviados: Jueves, 26 de Septiembre 2019 14:50:50 > Asunto: [FFmpeg-user] wrong colors in animated GIF > > 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 suspect it is something about the palette generated. I have been using palettegen and paletteuse filters lately, and they have worked out fine for me. This command is working as you might expect: ffmpeg -y -i sidereal.gif -filter_complex "split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" sidereal2.gif (2.8M) In fact, limiting the number of colors to 128, makes the file smaller: ffmpeg -i sidereal.gif -filter_complex "split[s0][s1];[s0]palettegen=max_colors=24[p];[s1][p]paletteuse" sidereal2.1.gif (2.2M) Hope it helps! Cheers -- Javier Infante Porro ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] wrong colors in animated GIF
Am 26.09.2019 um 15:06 schrieb Carl Eugen Hoyos: Am Do., 26. Sept. 2019 um 15:00 Uhr schrieb Michael Koch : 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 Did you also try the following "most simple FFmpeg commamd line"? ffmpeg -i sidereal.gif -qscale 2 out.avi ok, that works fine. Why are the colors wrong in the output? I suspect you didn't read about gif encoding with FFmpeg. (This is a known regression but unlikely to get fixed, output files were absurdly big.) No, I didn't read about gif encoding. I did use other examples with gif output before and there were no problems. Thanks, Michael ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] wrong colors in animated GIF
Am Do., 26. Sept. 2019 um 15:00 Uhr schrieb Michael Koch : > 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 Did you also try the following "most simple FFmpeg commamd line"? ffmpeg -i sidereal.gif -qscale 2 out.avi > Why are the colors wrong in the output? I suspect you didn't read about gif encoding with FFmpeg. (This is a known regression but unlikely to get fixed, output files were absurdly big.) Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] wrong colors in animated GIF
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: 0.00, 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% ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
