[FFmpeg-trac] #5039(avcodec:open): Incorrect TrueHD decoding
FFmpeg
trac at avcodec.org
Fri Sep 3 14:10:58 EEST 2021
#5039: Incorrect TrueHD decoding
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Reporter: Carl Eugen | Owner: (none)
Hoyos |
Type: defect | Status: open
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: thd | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
Okay, so encoder of 24 bit files is bitperfect (yes, actual 24 bit with
all bits are sometimes set, also I used -c:a pcm_s24le to convert back to
wav and then back to truehd all on 30 bit activation commit) can only do
up to 5.1 (not mono and stereo, as it says, '''it cannot do mono too''',
BTW). Yet, apparently my LG C9 does not recognize such 5.1 files as being
TrueHD... (And no, -sample_fmt s16 does not help either.) So 5.1 is not
'''conformant'''. I also suppose that indeed this issue is just a bug in
the decoder, maybe in 8.1 part of it.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5039#comment:7>
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