Ticket #709 (reopened enhancement)
Dolby pro logic IIx and IIz downmixing
| Reported by: | dE_logics | Owned by: | |
|---|---|---|---|
| Priority: | wish | Component: | swresample |
| Version: | git-master | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
ffmpeg, currently when down mixing multi channel audio, does it in a very simple way.
As an enhancement, it should support Dolby pro logic IIz encoding to encode 5.1 or 7.1 to stereo (pro logic II, pro logic IIx respectively) or 9.1 audio to 5.1 or 7.1 (pro logic IIz).
Change History
comment:1 Changed 18 months ago by cehoyos
- Status changed from new to open
- Component changed from FFmpeg to swresample
- Reproduced by developer set
comment:2 Changed 4 months ago by richardpl
- Status changed from open to closed
- Resolution set to fixed
I belive this have been implemented in libswresample as:
{{{-matrix_encoding <int> ....A. set matrixed stereo encoding (from 0 to 2)
none ....A. select none
dolby ....A. select Dolby
dplii ....A. select Dolby Pro Logic II}}}
Please reopen if you think it is not.
comment:3 Changed 4 months ago by cehoyos
Pro logic IIz is definitely not supported, but afaict 9.1 is generally not supported by FFmpeg and I don't think we have any samples.
