There are several reasons to replace dca psychoacoustic to common model:
 - dca psychoacoustic has some quality problems especially at high
frequency bands
 - unclear implementation
 - aac implementation allows to use tonality measurement for future
improvements
 - a bit faster

AAC psychoacoustic uses float sample format, so first patch changes dcaenc
input format to AV_SAMPLE_FMT_FLTP.
Second patch replaces psychoacoustic model.

-- 
Daniil Cherednik

Attachment: 0001-avcodec-dcaenc-Use-planar-float-frame-format.patch
Description: Binary data

Attachment: 0002-avcodec-dcaenc-Use-aac-psychoacoustic-model-for-DCA-.patch
Description: Binary data

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel

Reply via email to