av_cold int swri_rematrix_init(SwrContext *s){
int i, j;
int nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout);
int nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout);
s->mix_any_f = NULL;
if (!s->rematrix_custom) {
int r = auto_matrix(s);
if (r)
return r;
}
if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(int));
s->native_one = av_mallocz(sizeof(int));
for (i = 0; i < nb_out; i++)
for (j = 0; j < nb_in; j++)
((int*)s->native_matrix)[i * nb_in + j] = lrintf(s->matrix[i][j] * 32768);
*((int*)s->native_one) = 32768;
s->mix_1_1_f = (mix_1_1_func_type*)copy_s16;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_s16;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s16(s);
}else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(float));
s->native_one = av_mallocz(sizeof(float));
for (i = 0; i < nb_out; i++)
for (j = 0; j < nb_in; j++)
((float*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
*((float*)s->native_one) = 1.0;
s->mix_1_1_f = (mix_1_1_func_type*)copy_float;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_float;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_float(s);
}else if(s->midbuf.fmt == AV_SAMPLE_FMT_DBLP){
s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(double));
s->native_one = av_mallocz(sizeof(double));
for (i = 0; i < nb_out; i++)
for (j = 0; j < nb_in; j++)
((double*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
*((double*)s->native_one) = 1.0;
s->mix_1_1_f = (mix_1_1_func_type*)copy_double;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_double;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_double(s);
}else
av_assert0(0);
//FIXME quantize for integeres
for (i = 0; i < SWR_CH_MAX; i++) {
int ch_in=0;
for (j = 0; j < SWR_CH_MAX; j++) {
s->matrix32[i][j]= lrintf(s->matrix[i][j] * 32768);
if(s->matrix[i][j])
s->matrix_ch[i][++ch_in]= j;
}
s->matrix_ch[i][0]= ch_in;
}
if(HAVE_YASM && HAVE_MMX) swri_rematrix_init_x86(s);
return 0;
}
av_cold int swri_rematrix_init(SwrContext *s){
int i, j;
int nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout);
int nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout);
s->mix_any_f = NULL;
if (!s->rematrix_custom) {
int r = auto_matrix(s);
if (r)
return r;
}
if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
int maxsum = 0;
s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int));
s->native_one = av_mallocz(sizeof(int));
if (!s->native_matrix || !s->native_one)
return AVERROR(ENOMEM);
for (i = 0; i < nb_out; i++) {
double rem = 0;
int sum = 0;
for (j = 0; j < nb_in; j++) {
double target = s->matrix[i][j] * 32768 + rem;
((int*)s->native_matrix)[i * nb_in + j] = lrintf(target);
rem += target - ((int*)s->native_matrix)[i * nb_in + j];
sum += FFABS(((int*)s->native_matrix)[i * nb_in + j]);
}
maxsum = FFMAX(maxsum, sum);
}
*((int*)s->native_one) = 32768;
if (maxsum <= 32768) {
s->mix_1_1_f = (mix_1_1_func_type*)copy_s16;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_s16;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s16(s);
} else {
s->mix_1_1_f = (mix_1_1_func_type*)copy_clip_s16;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_clip_s16;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_clip_s16(s);
}
}else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
s->native_matrix = av_calloc(nb_in * nb_out, sizeof(float));
s->native_one = av_mallocz(sizeof(float));
if (!s->native_matrix || !s->native_one)
return AVERROR(ENOMEM);
for (i = 0; i < nb_out; i++)
for (j = 0; j < nb_in; j++)
((float*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
*((float*)s->native_one) = 1.0;
s->mix_1_1_f = (mix_1_1_func_type*)copy_float;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_float;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_float(s);
}else if(s->midbuf.fmt == AV_SAMPLE_FMT_DBLP){
s->native_matrix = av_calloc(nb_in * nb_out, sizeof(double));
s->native_one = av_mallocz(sizeof(double));
if (!s->native_matrix || !s->native_one)
return AVERROR(ENOMEM);
for (i = 0; i < nb_out; i++)
for (j = 0; j < nb_in; j++)
((double*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
*((double*)s->native_one) = 1.0;
s->mix_1_1_f = (mix_1_1_func_type*)copy_double;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_double;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_double(s);
}else if(s->midbuf.fmt == AV_SAMPLE_FMT_S32P){
s->native_one = av_mallocz(sizeof(int));
if (!s->native_one)
return AVERROR(ENOMEM);
s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int));
if (!s->native_matrix) {
av_freep(&s->native_one);
return AVERROR(ENOMEM);
}
for (i = 0; i < nb_out; i++) {
double rem = 0;
for (j = 0; j < nb_in; j++) {
double target = s->matrix[i][j] * 32768 + rem;
((int*)s->native_matrix)[i * nb_in + j] = lrintf(target);
rem += target - ((int*)s->native_matrix)[i * nb_in + j];
}
}
*((int*)s->native_one) = 32768;
s->mix_1_1_f = (mix_1_1_func_type*)copy_s32;
s->mix_2_1_f = (mix_2_1_func_type*)sum2_s32;
s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s32(s);
}else
av_assert0(0);
//FIXME quantize for integeres
for (i = 0; i < SWR_CH_MAX; i++) {
int ch_in=0;
for (j = 0; j < SWR_CH_MAX; j++) {
s->matrix32[i][j]= lrintf(s->matrix[i][j] * 32768);
if(s->matrix[i][j])
s->matrix_ch[i][++ch_in]= j;
}
s->matrix_ch[i][0]= ch_in;
}
if(HAVE_X86ASM && HAVE_MMX)
return swri_rematrix_init_x86(s);
return 0;
}