@@ -138,6 +138,8 @@ static int sane_layout(AVChannelLayout *ch_layout) {
return 0;
if(!even(av_channel_layout_subset(ch_layout, (AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER))))
return 0;
+ if(!even(av_channel_layout_subset(ch_layout, (AV_CH_TOP_FRONT_LEFT | AV_CH_TOP_FRONT_RIGHT))))
+ return 0;
if(ch_layout->nb_channels >= SWR_CH_MAX)
return 0;
@@ -369,6 +371,28 @@ av_cold int swr_build_matrix2(const AVChannelLayout *in_layout, const AVChannelL
}else
av_assert0(0);
}
+
+ if (unaccounted & AV_CH_TOP_FRONT_LEFT) {
+ if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_TOP_FRONT_CENTER) >= 0) {
+ matrix[TOP_FRONT_CENTER][TOP_FRONT_LEFT ] += M_SQRT1_2;
+ matrix[TOP_FRONT_CENTER][TOP_FRONT_RIGHT] += M_SQRT1_2;
+ if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_TOP_FRONT_CENTER) >= 0)
+ matrix[TOP_FRONT_CENTER][TOP_FRONT_CENTER] = center_mix_level * sqrt(2);
+ } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) {
+ if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) {
+ matrix[FRONT_LEFT ][TOP_FRONT_LEFT ] += M_SQRT1_2;
+ matrix[FRONT_RIGHT][TOP_FRONT_RIGHT] += M_SQRT1_2;
+ } else {
+ matrix[FRONT_LEFT ][TOP_FRONT_LEFT ] += 1.0;
+ matrix[FRONT_RIGHT][TOP_FRONT_RIGHT] += 1.0;
+ }
+ } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) {
+ matrix[FRONT_CENTER][TOP_FRONT_LEFT ] += M_SQRT1_2;
+ matrix[FRONT_CENTER][TOP_FRONT_RIGHT] += M_SQRT1_2;
+ } else
+ av_assert0(0);
+ }
+
/* mix LFE into front left/right or center */
if (unaccounted & AV_CH_LOW_FREQUENCY) {
if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) {
Signed-off-by: James Almer <jamrial@gmail.com> --- libswresample/rematrix.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)