[FFmpeg-trac] #8872(undetermined:new): implement Cue-Points Chunk for WAV files (RIFF)
FFmpeg
trac at avcodec.org
Fri Aug 28 15:08:38 EEST 2020
#8872: implement Cue-Points Chunk for WAV files (RIFF)
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Reporter: cracki | Type:
| enhancement
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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it appears to me that ffmpeg is unaware of 'cue ' chunks in wav files, for
reading and writing. ffmpeg supports cues or chapter markers for other
container formats.
this involves
- a 'cue ' chunk that contains a table of timestamps (the 'fmt ' chunk may
be useful to convert sample indices to times)
- a 'list' 'adtl' chunk that contains 'labl' chunks
- 'labl' chunks that each contain an index and a string label, which
describes the given cue point
the RIFF/WAV file specification details the structures of these chunks. I
suspect that this doesn't just apply to wav files but also avi files.
I'll attach a sample file that contains a few cue points.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8872>
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