RE:
https://trac.ffmpeg.org/wiki/Create%20a%20video%20slideshow%20from%20images
To see why some animated GIF are not working in the export of LibreOffice
Impress, I compare thanks to ffprobe.
I noticed that working animated GIF has:
r_frame_rate=20/1
avg_frame_rate=20/1
While non working animated GIF has:
r_frame_rate=100/7
avg_frame_rate=57/4
I try to use ffmpeg to converted the non working gif to the same parameters
as the working one my CLI is
F:\Art>ffmpeg -y -i "feather.gif" -r 20 -s 260x173 "feather conv.gif"
(Console output below)
Now, if I ffprobe the new gif I see:
r_frame_rate=20/1
avg_frame_rate=175/12
How can I now change the avg_frame_rate to 20/1?
I tried to use the framerate option, but didn't work.
F:\Art>ffmpeg -framerate 20/1 -i "feather.gif" -r 20 -s 260x173 "feather
conv.gif"
ffmpeg version N-73993-g8a17335 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fo
ntconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libbs2b --ena
ble-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-l
ibtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --
enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxavs --enable-libxvid --enable-l
zma --enable-decklink --enable-zlib
libavutil 54. 29.100 / 54. 29.100
libavcodec 56. 52.100 / 56. 52.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 28.100 / 5. 28.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Option framerate not found.
F:\Art>
Thanks
ffmpeg version N-73993-g8a17335 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fo
ntconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libbs2b --ena
ble-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-l
ibtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --
enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxavs --enable-libxvid --enable-l
zma --enable-decklink --enable-zlib
libavutil 54. 29.100 / 54. 29.100
libavcodec 56. 52.100 / 56. 52.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 28.100 / 5. 28.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Input #0, gif, from 'hj tease feather.gif':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: gif, bgra, 400x225, 14.25 fps, 14.29 tbr, 100 tbn,
100 tbc
Output #0, gif, to 'hj tease feather conv.gif':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: gif, bgr8, 260x173, q=2-31, 200 kb/s, 20 fps, 100
tbn, 20 tbc
Metadata:
encoder : Lavc56.52.100 gif
Stream mapping:
Stream #0:0 -> #0:0 (gif (native) -> gif (native))
Press [q] to stop, [?] for help
frame= 42 fps=0.0 q=-0.0 Lsize= 934kB time=00:00:02.90
bitrate=2639.2kbits/s
video:933kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.118986%
F:\Art\>
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