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authorTobias Rapp <t.rapp@noa-archive.com>2018-02-14 17:01:08 +0100
committerTobias Rapp <t.rapp@noa-archive.com>2018-02-19 09:06:29 +0100
commitfea559c3d5575bce51acdb17cf83a1a8fd237feb (patch)
treed7d10d0c43cde6c643650f15cb72164626f3078c
parent09419de21620f1ef3af91e2c591a08c36b8c7ba3 (diff)
downloadffmpeg-fea559c3d5575bce51acdb17cf83a1a8fd237feb.tar.gz
swresample/rematrix: fix update of channel matrix if input or output layout is undefined
Prefer direct in/out channel count values over channel layout, when available. Fixes a pan filter bug (ticket #6790). Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com> (cherry picked from commit 6325bd3717348615adafb52e4da2fd01a3007d0a)
-rw-r--r--libswresample/rematrix.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/libswresample/rematrix.c b/libswresample/rematrix.c
index 03b9b20900..584ce69efd 100644
--- a/libswresample/rematrix.c
+++ b/libswresample/rematrix.c
@@ -69,8 +69,10 @@ int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride)
return AVERROR(EINVAL);
memset(s->matrix, 0, sizeof(s->matrix));
memset(s->matrix_flt, 0, sizeof(s->matrix_flt));
- nb_in = av_get_channel_layout_nb_channels(s->user_in_ch_layout);
- nb_out = av_get_channel_layout_nb_channels(s->user_out_ch_layout);
+ nb_in = (s->user_in_ch_count > 0) ? s->user_in_ch_count :
+ av_get_channel_layout_nb_channels(s->user_in_ch_layout);
+ nb_out = (s->user_out_ch_count > 0) ? s->user_out_ch_count :
+ av_get_channel_layout_nb_channels(s->user_out_ch_layout);
for (out = 0; out < nb_out; out++) {
for (in = 0; in < nb_in; in++)
s->matrix_flt[out][in] = s->matrix[out][in] = matrix[in];