diff options
Diffstat (limited to 'libswresample/rematrix_template.c')
-rw-r--r-- | libswresample/rematrix_template.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libswresample/rematrix_template.c b/libswresample/rematrix_template.c index 0b5123c1cb..690ea7c6c7 100644 --- a/libswresample/rematrix_template.c +++ b/libswresample/rematrix_template.c @@ -35,3 +35,22 @@ static void RENAME(copy)(SAMPLE *out, const SAMPLE *in, COEFF *coeffp, int index out[i] = R(coeff*in[i]); } +static void RENAME(mix6to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, int len){ + int i; + + for(i=0; i<len; i++) { + INTER t = in[2][i]*coeffp[0*6+2] + in[3][i]*coeffp[0*6+3]; + out[0][i] = R(t + in[0][i]*coeffp[0*6+0] + in[4][i]*coeffp[0*6+4]); + out[1][i] = R(t + in[1][i]*coeffp[1*6+1] + in[5][i]*coeffp[1*6+5]); + } +} + +static mix_any_func_type *RENAME(get_mix_any_func)(SwrContext *s){ + if( s->out_ch_layout == AV_CH_LAYOUT_STEREO && (s->in_ch_layout == AV_CH_LAYOUT_5POINT1 || s->in_ch_layout == AV_CH_LAYOUT_5POINT1_BACK) + && s->matrix[0][2] == s->matrix[1][2] && s->matrix[0][3] == s->matrix[1][3] + && !s->matrix[0][1] && !s->matrix[0][5] && !s->matrix[1][0] && !s->matrix[1][4] + ) + return RENAME(mix6to2); + + return NULL; +} |