Am 02.06.20 um 13:18 schrieb Moritz Barsnick: > On Mon, Jun 01, 2020 at 23:06:41 +0200, Nomis101 wrote: >> Am 01.06.20 um 21:27 schrieb Carl Eugen Hoyos: >>> Am Mo., 1. Juni 2020 um 20:19 Uhr schrieb Nomis101 <nomis...@web.de>: >>>> (-acodec copy), will the DTS:X / Atmos related information be fully/partly >>>> stripped away or will it be preserved? > > Did you try? ;-)
Yes I did. I posted the result in the mentioned HandBrake bug on github. I compared the MediaInfo output of the original and the file after -c copy. There are differences, but I am not sure if this differences are relevant or not. For example: - For Atmos in TrueHD, the original has a Format of "AC-3 MLP FBA 16-ch", after the copy it is just "MLP FBA 16-ch". - For Atmos in TrueHD, the original has a Format/Info of "Audio Coding 3 + Meridian Lossless Packing FBA with 16-channel presentation", after copy it is just "Meridian Lossless Packing FBA with 16-channel presentation". - For Atmos in TrueHD, the original has a muxing modus "Stream extension", after copy, it does not show any muxing modus anymore. - For Atmos in TrueHD, the original has a Compression mode of "Lossy", after the copy, it is "Lossless". - For Atmos in E-AC3, also after copy, there is no "Muxing modus" anymore. - For DTS:X, the original has an Codec-ID "A_DTS", after the copy it is "mp4a-A9". - For DTS:X, the original has a Bit depth of 24 bit, after copy it does not show any Bit depth anymore. > >>> Note that there is nothing relevant hidden in a E-AC3 stream, >>> this is just marketing speech. >> >> Good to now. I was just confused by this comment: >> https://github.com/FFmpeg/FFmpeg/blob/adea33f46513821c111c602a0692b78315688c1b/libavcodec/mlpdec.c#L367 >> I thought, maybe the Atmos stuff is in a substream, that is stripped away. >> So, thanks for that information. > > That's the decoder you're looking at, which isn't used if you use the > copy codec. Thanks! > > Cheers, > Moritz > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".