[FFmpeg-devel] [PATCH] avfilter: add dumpwave filter.

Tobias Rapp t.rapp at noa-archive.com
Wed Jan 10 11:17:44 EET 2018


On 10.01.2018 09:34, Дмитрий Гуменюк wrote:
> There is no existing dumping format for RMS. How to make it generic?

Some of my applications use the following pattern to dump audio envelope 
data during transcoding:

ffmpeg -i input-file -f [...] output-file \
   -f wav -write_peak only peak-file

The data format of "peak-file" follows EBU Tech 3285 Supplement 3 (BWF 
Peak Envelope Chunk).

Regards,
Tobias



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