#Remux mkv to mp4 ffmpeg software#

1-3 would be preferred, but this could work too. I can then format that in the script and pass it on to FFmpeg. Even another program that would cleanly deliver me the index numbers of any audio tracks that were TrueHD would work.Some way to include TrueHD tracks in an MP4 container, using FFmpeg.Parameters in the FFmpeg command to include all BUT TrueHD in the output (or include only codecs specified manually- mp3,aac,ac3,etc).Parameters in the FFmpeg command to exclude all TrueHD audio tracks from being sent to the output.I am looking for/hoping to do one of the following, any of which would solve my problem: The purpose of the script is to batch convert mkv files to mp4 files using FFmpeg, so that would defeat the purpose of the whole endeavor. What I don't want to have to do is manually sift through each mkv to determine the index of each TrueHD track and then manually specify to the command. That's fine, I don't really care about the TrueHD tracks.

#Remux mkv to mp4 ffmpeg software#

From what I can gather, as of Dec '21, there is no software support in FFmpeg to put a TrueHD track into an MP4 container. When trying to do so, I consistently get an (possibly two?) error message/s:Ĭould not find tag for codec truehd in stream #2, codec not currently supported in containerĬould not write header for output file #0 (incorrect codec parameters ?): Invalid argumentĭoing some research, I found some talk of using '-strict -2' as a parameter of the command, but that makes no difference. Theoretically, this should be a fairly simple command. Only audio, video, and subtitles are supported for Matroska.I am trying to come up with an FFmpeg command (for use in a script) that will take an mkv generated from MakeMKV and remux all the video and audio tracks to an mp4 (without the subtitles) without doing any re-encoding.

Multiple -c, -codec, -acodec, -vcodec, -scodec or -dcodec options specified for stream 3, only the last option '-c:s srt' will be used. So why would using '-map 0' cause it to fail when I used the exact same command to remux the original MKV into an MP4? And why does omitting '-map 0' cause it to work, but then it doesn't copy both audio streams?įfmpeg version git-43a08d9 Copyright (c) 2000-2020 the FFmpeg developersĬonfiguration: -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-libsrt -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-libvmaf -enable-libvorbis -enable-libvo-amrwbenc -enable-libmysofa -enable-libspeex -enable-libxvid -enable-libaom -enable-libgsm -disable-w32threads -enable-libmfx -enable-ffnvcodec -enable-cuda-llvm -enable-cuvid -enable-d3d11va -enable-nvenc -enable-nvdec -enable-dxva2 -enable-avisynth -enable-libopenmpt -enable-amf When I try to use either of the two commands below using '-map 0' just like I did when I remuxed the original MKV into an MP4, the commands fail and both result in the following output.įfmpeg.exe -i input.mp4 -map 0 -c copy -c:s srt output.mkvįfmpeg.exe -i input.mp4 -map 0 -c:v copy -c:a copy -c:s srt output.mkv These two commands work, however, the output MKV only contains ONE of the TWO audio streams.įfmpeg.exe -i input.mp4 -c copy -c:s srt output.mkvįfmpeg.exe -i input.mp4 -c:v copy -c:a copy -c:s srt output.mkv However, if I omit '-map 0' from the command, it works but only ONE of the audio streams get copied to the output MKV file.

The resulting output MP4 contains all the streams from the original MKV.īut if I try to remux the output MP4 into an MKV using the same command, but with a different codec for the subtitles and different file extension, I get an error. I was able to remux the MKV into an MP4 using this command.įfmpeg.exe -i input.mp4 -c copy -c:s mov_text output.mkv I have an MKV file that contains 5 streams.