The mediainfo tool reports Dolby Digital Plus with JOC for the MKV and Dolby Digital Plus without JOC for MP4.įfmpeg -i original.mkv -c:v copy -c:a eac3 -tag:v hvc1 output.mp4 From what I understand MP4\M4V supports Atmos This contains the Atmos information for object based sound. The issue is retaining the Dolby Digital Plus including JOC. I have achieved the ability to remux 4K HDR with Dolby Digital Plus in a. It's important not to convert, but to remux. I'm remuxing a number of video files from MKV to MP4\M4V so they play on the Apple platform (including the TV App). The only tool that retains the audio track is VLC Player, but it took the VLC player 9 minutes to convert the 3:43 video to mp4.Does anyone know how to remux and keep enhanced AC-3 with joint object control (JOC) with FFmpeg. I have tried several different MKV to MP4 converters that are recommended on the Videohelp website, and each of them generates an mp4 file with no sound. file name YouTube_internal_audio_2_new.opus" +65529ms -progressnumbers
Viewing the MkvToMp4 log window, the first test had no comments about the audio track, and I see the following text referring to the audio in the 2nd test.
And as my title suggests, there is no audio. The audio details show Output AAC 2.0, quality 0.75.Īfter processing the file, the icon on the audio track is replaced by the red circle with the white "X". On the second attempt I return the check mark to the audio stream. I noticed in the youtube instruction video he unchecked the audio stream. I follow the exact same steps as shown in the youtube video ( ).
I can play the files in VLC player to confirm the audio is present. I downloaded some simple 2 channel stereo video files in MKV format.
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