From 6325bd3717348615adafb52e4da2fd01a3007d0a Mon Sep 17 00:00:00 2001 From: Tobias Rapp Date: Wed, 14 Feb 2018 17:01:08 +0100 Subject: [PATCH] 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 --- libswresample/rematrix.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libswresample/rematrix.c b/libswresample/rematrix.c index 9fcfff1318..8227730056 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];