[FFmpeg-trac] #8631(undetermined:closed): Audio gapless playback metadata for MP4/AAC
FFmpeg
trac at avcodec.org
Thu May 21 03:05:49 EEST 2020
#8631: Audio gapless playback metadata for MP4/AAC
-------------------------------------+-------------------------------------
Reporter: | Owner:
johnkaplantech |
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
| needs_more_info
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by johnkaplantech):
I did more investigation and found that for re-encoding a flac file into
MP4/AAC, ffmpeg is producing a moov/edts/elst header with information
populated that follows the MP4 spec.
We were using a command-line switch that suppressed the above boxes, which
was
-f adts
..once we stopped using that the elst box appeared in the output. There is
a wrinkle in that output that's preventing some players from interpreting
it correctly, but that's for another thread.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8631#comment:2>
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