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swr/auto_matrix: add clean layout function 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-09-08 21:10:19 +02:00
parent ebc854e4e9
commit c8ffab06f4
1 changed files with 9 additions and 1 deletions
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10
libswresample/rematrix.c
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@ -102,6 +102,11 @@ static int even(int64_t layout){
return 0;
}
static int clean_layout(SwrContext *s, int64_t layout){
return layout;
}
static int sane_layout(int64_t layout){
if(!(layout & AV_CH_LAYOUT_SURROUND)) // at least 1 front speaker
return 0;
@ -123,16 +128,19 @@ static int auto_matrix(SwrContext *s)
{
int i, j, out_i;
double matrix[64][64]={{0}};
int64_t unaccounted, in_ch_layout = s->in_ch_layout, out_ch_layout = s->out_ch_layout;
int64_t unaccounted, in_ch_layout, out_ch_layout;
double maxcoef=0;
char buf[128];
const int matrix_encoding = s->matrix_encoding;
in_ch_layout = clean_layout(s, s->in_ch_layout);
if(!sane_layout(in_ch_layout)){
av_get_channel_layout_string(buf, sizeof(buf), -1, s->in_ch_layout);
av_log(s, AV_LOG_ERROR, "Input channel layout '%s' is not supported\n", buf);
return AVERROR(EINVAL);
}
out_ch_layout = clean_layout(s, s->out_ch_layout);
if(!sane_layout(out_ch_layout)){
av_get_channel_layout_string(buf, sizeof(buf), -1, s->out_ch_layout);
av_log(s, AV_LOG_ERROR, "Output channel layout '%s' is not supported\n", buf);