[FFmpeg-trac] #11578(ffmpeg:open): Waveform discontinuity in decoded E-AC-3
FFmpeg
trac at avcodec.org
Tue May 27 18:34:40 EEST 2025
#11578: Waveform discontinuity in decoded E-AC-3
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Reporter: j7n | Owner: mkver
Type: defect | Status: open
Priority: normal | Component: ffmpeg
Version: unspecified | Resolution:
Keywords: eac3 | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
>What is wrong in CC 2017?
It decodes the start incorrectly.
>They have an overlap of 2 frames (3072 samples).
2 frames in EAC3 is 256*2 =512 samples. You mean 12 frames.
>In "edts"/"elst" track 05 has a recorded delay of 2688 samples, which are
discarded by ffmpeg from the start.
>To achieve gaplessness, 384 more samples should be deleted, which doesn't
happen.
It does happen: #9471
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Ticket URL: <https://trac.ffmpeg.org/ticket/11578#comment:8>
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