Opened 13 years ago
Last modified 12 years ago
#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 (6)
comment:1 by , 13 years ago
| Component: | FFmpeg → swresample |
|---|---|
| Reproduced by developer: | set |
| Status: | new → open |
comment:2 by , 12 years ago
| Resolution: | → fixed |
|---|---|
| Status: | open → closed |
Version 0, edited 12 years ago by (next)
comment:3 by , 12 years ago
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.
comment:5 by , 12 years ago
| Resolution: | fixed |
|---|---|
| Status: | closed → reopened |
| Summary: | Dolby pro logic IIz encoding. → Dolby pro logic IIx and IIz downmixin |
comment:6 by , 12 years ago
| Summary: | Dolby pro logic IIx and IIz downmixin → Dolby pro logic IIx and IIz downmixing |
|---|
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I belive this have been implemented in libswresample as:
{{{-matrix_encoding <int> ....A. set matrixed stereo encoding (from 0 to 2)
Please reopen if you think it is not.