[FFmpeg-trac] #7941(undetermined:reopened): Transparency broken when encoding animated webp
FFmpeg
trac at avcodec.org
Tue Jun 18 15:10:42 EEST 2019
#7941: Transparency broken when encoding animated webp
-------------------------------------+-------------------------------------
Reporter: nireldidi | Owner: nireldidi
Type: defect | Status: reopened
Priority: important | Component:
| undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by nireldidi):
* priority: normal => important
* status: closed => reopened
* resolution: needs_more_info =>
Comment:
ffmpeg -i test.gif animation.webp
ffmpeg version N-93933-geae251ead9 Copyright (c) 2000-2019 the FFmpeg
developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-libshine --enable-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 --enable-
libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
libavutil 56. 28.100 / 56. 28.100
libavcodec 58. 52.102 / 58. 52.102
libavformat 58. 27.103 / 58. 27.103
libavdevice 58. 7.100 / 58. 7.100
libavfilter 7. 54.101 / 7. 54.101
libswscale 5. 4.101 / 5. 4.101
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, gif, from 'test.gif':
Duration: 00:00:02.00, start: 0.000000, bitrate: 70 kb/s
Stream #0:0: Video: gif, bgra, 150x150, 18.42 fps, 20 tbr, 100 tbn,
100 tbc
Stream mapping:
Stream #0:0 -> #0:0 (gif (native) -> webp (libwebp))
Press [q] to stop, [?] for help
Output #0, webp, to 'animation.webp':
Metadata:
encoder : Lavf58.27.103
Stream #0:0: Video: webp (libwebp), bgra, 150x150, q=2-31, 200 kb/s,
20 fps, 1k tbn, 20 tbc
Metadata:
encoder : Lavc58.52.102 libwebp
[libwebp @ 000001aacbb6a9c0] Using libwebp for RGB-to-YUV conversion. You
may want to consider passing in YUV instead for lossy encoding.
frame= 37 fps=0.0 q=-0.0 Lsize= 41kB time=00:00:01.80 bitrate=
187.6kbits/s speed=14.4x
video:41kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7941#comment:5>
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