#define TOP_BACK_LEFT 15
#define TOP_BACK_CENTER 16
#define TOP_BACK_RIGHT 17
+#define NUM_NAMED_CHANNELS 18
int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride)
{
av_cold static int auto_matrix(SwrContext *s)
{
int i, j, out_i;
- double matrix[64][64]={{0}};
+ double matrix[NUM_NAMED_CHANNELS][NUM_NAMED_CHANNELS]={{0}};
int64_t unaccounted, in_ch_layout, out_ch_layout;
double maxcoef=0;
char buf[128];
}
memset(s->matrix, 0, sizeof(s->matrix));
- for(i=0; i<64; i++){
+ for(i=0; i<FF_ARRAY_ELEMS(matrix); i++){
if(in_ch_layout & out_ch_layout & (1ULL<<i))
matrix[i][i]= 1.0;
}
for(out_i=i=0; i<64; i++){
double sum=0;
int in_i=0;
+ if((out_ch_layout & (1ULL<<i)) == 0)
+ continue;
for(j=0; j<64; j++){
- s->matrix[out_i][in_i]= matrix[i][j];
- if(matrix[i][j]){
- sum += fabs(matrix[i][j]);
- }
- if(in_ch_layout & (1ULL<<j))
- in_i++;
+ if((in_ch_layout & (1ULL<<j)) == 0)
+ continue;
+ if (i < FF_ARRAY_ELEMS(matrix) && j < FF_ARRAY_ELEMS(matrix[0]))
+ s->matrix[out_i][in_i]= matrix[i][j];
+ else
+ s->matrix[out_i][in_i]= i == j && (in_ch_layout & out_ch_layout & (1ULL<<i));
+ sum += fabs(s->matrix[out_i][in_i]);
+ in_i++;
}
maxcoef= FFMAX(maxcoef, sum);
- if(out_ch_layout & (1ULL<<i))
- out_i++;
+ out_i++;
}
if(s->rematrix_volume < 0)
maxcoef = -s->rematrix_volume;