#7240: Preserve Vorbis Comment vendor string when copying streams -------------------------------------+------------------------------------- Reporter: hdante | Type: Status: new | enhancement Component: | Priority: minor undetermined | Version: Keywords: | unspecified Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Summary of the bug: Hello, by default ffmpeg does not preserve the vendor string in formats that use vorbis comment. Is is possible to do so ? Could it be implemented ? How to reproduce: {{{ $ ffmpeg -i Best_of_the_Beast.flac -c copy ffmpeg.flac $ ffmpeg -i Best_of_the_Beast.opus -c copy ffmpeg.opus $ mediainfo Best_of_the_Beast.flac | grep library Writing library : libFLAC 1.3.2 (UTC 2017-01-01) $ mediainfo Best_of_the_Beast.opus | grep library Writing library : libopus 1.2.1 $ mediainfo ffmpeg.flac | grep library Writing library : Lavf58.12.100 $ mediainfo ffmpeg.opus | grep library Writing library : Lavf58.12.100 ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 8.1.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable- stripping --enable-avresample --enable-fontconfig --enable-gmp --enable- gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable- libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvenc --enable-omx --enable-shared --enable-version3 libavutil 56. 14.100 / 56. 14.100 libavcodec 58. 18.100 / 58. 18.100 libavformat 58. 12.100 / 58. 12.100 libavdevice 58. 3.100 / 58. 3.100 libavfilter 7. 16.100 / 7. 16.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 1.100 / 5. 1.100 libswresample 3. 1.100 / 3. 1.100 libpostproc 55. 1.100 / 55. 1.100 }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/7240> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker