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The following commit(s) were added to refs/heads/master by this push:
new d1faab734d avcodec/dcadec: map Lw/Rw to FLC/FRC
d1faab734d is described below
commit d1faab734d8981f110637157459ed927496aca06
Author: James Almer <[email protected]>
AuthorDate: Sat May 30 23:45:10 2026 -0300
Commit: James Almer <[email protected]>
CommitDate: Sun Jun 7 10:24:42 2026 -0300
avcodec/dcadec: map Lw/Rw to FLC/FRC
Some 7.1 DTS files seem to signal Lw/Rw channels that the decoder has been
mapping to SL/SR, despite the macro for the mask being called 7_1_WIDE.
This resulted in said samples reporting the same native layout as actual 7.1
samples with Lsr/Rsr/Lss/Rss (mapped to BL/BR/SL/SR).
If we were to be strict, Lw/Rw would map to WR/WL, but that would result in
an
unusual native layout. Instead, lets map them to FLC/FRC, which will result
in
the more common 7.1(wide) native layout.
Signed-off-by: James Almer <[email protected]>
---
libavcodec/dcadec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c
index f47a694746..7fbd2c6e3f 100644
--- a/libavcodec/dcadec.c
+++ b/libavcodec/dcadec.c
@@ -41,7 +41,7 @@ int ff_dca_set_channel_layout(AVCodecContext *avctx, int
*ch_remap, int dca_mask
static const uint8_t dca2wav_wide[28] = {
2, 0, 1, 4, 5, 3, 8, 4, 5, 9, 10, 6, 7, 12,
- 13, 14, 3, 9, 10, 11, 12, 14, 16, 15, 17, 8, 4, 5,
+ 13, 14, 3, 6, 7, 11, 12, 14, 16, 15, 17, 8, 4, 5,
};
DCAContext *s = avctx->priv_data;
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