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-rw-r--r--libavresample/audio_mix.c742
1 files changed, 0 insertions, 742 deletions
diff --git a/libavresample/audio_mix.c b/libavresample/audio_mix.c
deleted file mode 100644
index 7ae0aeb74d..0000000000
--- a/libavresample/audio_mix.c
+++ /dev/null
@@ -1,742 +0,0 @@
-/*
- * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdint.h>
-
-#include "libavutil/common.h"
-#include "libavutil/libm.h"
-#include "libavutil/samplefmt.h"
-#include "avresample.h"
-#include "internal.h"
-#include "audio_data.h"
-#include "audio_mix.h"
-
-static const char * const coeff_type_names[] = { "q8", "q15", "flt" };
-
-struct AudioMix {
- AVAudioResampleContext *avr;
- enum AVSampleFormat fmt;
- enum AVMixCoeffType coeff_type;
- uint64_t in_layout;
- uint64_t out_layout;
- int in_channels;
- int out_channels;
-
- int ptr_align;
- int samples_align;
- int has_optimized_func;
- const char *func_descr;
- const char *func_descr_generic;
- mix_func *mix;
- mix_func *mix_generic;
-
- int in_matrix_channels;
- int out_matrix_channels;
- int output_zero[AVRESAMPLE_MAX_CHANNELS];
- int input_skip[AVRESAMPLE_MAX_CHANNELS];
- int output_skip[AVRESAMPLE_MAX_CHANNELS];
- int16_t *matrix_q8[AVRESAMPLE_MAX_CHANNELS];
- int32_t *matrix_q15[AVRESAMPLE_MAX_CHANNELS];
- float *matrix_flt[AVRESAMPLE_MAX_CHANNELS];
- void **matrix;
-};
-
-void ff_audio_mix_set_func(AudioMix *am, enum AVSampleFormat fmt,
- enum AVMixCoeffType coeff_type, int in_channels,
- int out_channels, int ptr_align, int samples_align,
- const char *descr, void *mix_func)
-{
- if (fmt == am->fmt && coeff_type == am->coeff_type &&
- ( in_channels == am->in_matrix_channels || in_channels == 0) &&
- (out_channels == am->out_matrix_channels || out_channels == 0)) {
- char chan_str[16];
- am->mix = mix_func;
- am->func_descr = descr;
- am->ptr_align = ptr_align;
- am->samples_align = samples_align;
- if (ptr_align == 1 && samples_align == 1) {
- am->mix_generic = mix_func;
- am->func_descr_generic = descr;
- } else {
- am->has_optimized_func = 1;
- }
- if (in_channels) {
- if (out_channels)
- snprintf(chan_str, sizeof(chan_str), "[%d to %d] ",
- in_channels, out_channels);
- else
- snprintf(chan_str, sizeof(chan_str), "[%d to any] ",
- in_channels);
- } else if (out_channels) {
- snprintf(chan_str, sizeof(chan_str), "[any to %d] ",
- out_channels);
- } else {
- snprintf(chan_str, sizeof(chan_str), "[any to any] ");
- }
- av_log(am->avr, AV_LOG_DEBUG, "audio_mix: found function: [fmt=%s] "
- "[c=%s] %s(%s)\n", av_get_sample_fmt_name(fmt),
- coeff_type_names[coeff_type], chan_str, descr);
- }
-}
-
-#define MIX_FUNC_NAME(fmt, cfmt) mix_any_ ## fmt ##_## cfmt ##_c
-
-#define MIX_FUNC_GENERIC(fmt, cfmt, stype, ctype, sumtype, expr) \
-static void MIX_FUNC_NAME(fmt, cfmt)(stype **samples, ctype **matrix, \
- int len, int out_ch, int in_ch) \
-{ \
- int i, in, out; \
- stype temp[AVRESAMPLE_MAX_CHANNELS]; \
- for (i = 0; i < len; i++) { \
- for (out = 0; out < out_ch; out++) { \
- sumtype sum = 0; \
- for (in = 0; in < in_ch; in++) \
- sum += samples[in][i] * matrix[out][in]; \
- temp[out] = expr; \
- } \
- for (out = 0; out < out_ch; out++) \
- samples[out][i] = temp[out]; \
- } \
-}
-
-MIX_FUNC_GENERIC(FLTP, FLT, float, float, float, sum)
-MIX_FUNC_GENERIC(S16P, FLT, int16_t, float, float, av_clip_int16(lrintf(sum)))
-MIX_FUNC_GENERIC(S16P, Q15, int16_t, int32_t, int64_t, av_clip_int16(sum >> 15))
-MIX_FUNC_GENERIC(S16P, Q8, int16_t, int16_t, int32_t, av_clip_int16(sum >> 8))
-
-/* TODO: templatize the channel-specific C functions */
-
-static void mix_2_to_1_fltp_flt_c(float **samples, float **matrix, int len,
- int out_ch, int in_ch)
-{
- float *src0 = samples[0];
- float *src1 = samples[1];
- float *dst = src0;
- float m0 = matrix[0][0];
- float m1 = matrix[0][1];
-
- while (len > 4) {
- *dst++ = *src0++ * m0 + *src1++ * m1;
- *dst++ = *src0++ * m0 + *src1++ * m1;
- *dst++ = *src0++ * m0 + *src1++ * m1;
- *dst++ = *src0++ * m0 + *src1++ * m1;
- len -= 4;
- }
- while (len > 0) {
- *dst++ = *src0++ * m0 + *src1++ * m1;
- len--;
- }
-}
-
-static void mix_2_to_1_s16p_flt_c(int16_t **samples, float **matrix, int len,
- int out_ch, int in_ch)
-{
- int16_t *src0 = samples[0];
- int16_t *src1 = samples[1];
- int16_t *dst = src0;
- float m0 = matrix[0][0];
- float m1 = matrix[0][1];
-
- while (len > 4) {
- *dst++ = av_clip_int16(lrintf(*src0++ * m0 + *src1++ * m1));
- *dst++ = av_clip_int16(lrintf(*src0++ * m0 + *src1++ * m1));
- *dst++ = av_clip_int16(lrintf(*src0++ * m0 + *src1++ * m1));
- *dst++ = av_clip_int16(lrintf(*src0++ * m0 + *src1++ * m1));
- len -= 4;
- }
- while (len > 0) {
- *dst++ = av_clip_int16(lrintf(*src0++ * m0 + *src1++ * m1));
- len--;
- }
-}
-
-static void mix_2_to_1_s16p_q8_c(int16_t **samples, int16_t **matrix, int len,
- int out_ch, int in_ch)
-{
- int16_t *src0 = samples[0];
- int16_t *src1 = samples[1];
- int16_t *dst = src0;
- int16_t m0 = matrix[0][0];
- int16_t m1 = matrix[0][1];
-
- while (len > 4) {
- *dst++ = (*src0++ * m0 + *src1++ * m1) >> 8;
- *dst++ = (*src0++ * m0 + *src1++ * m1) >> 8;
- *dst++ = (*src0++ * m0 + *src1++ * m1) >> 8;
- *dst++ = (*src0++ * m0 + *src1++ * m1) >> 8;
- len -= 4;
- }
- while (len > 0) {
- *dst++ = (*src0++ * m0 + *src1++ * m1) >> 8;
- len--;
- }
-}
-
-static void mix_1_to_2_fltp_flt_c(float **samples, float **matrix, int len,
- int out_ch, int in_ch)
-{
- float v;
- float *dst0 = samples[0];
- float *dst1 = samples[1];
- float *src = dst0;
- float m0 = matrix[0][0];
- float m1 = matrix[1][0];
-
- while (len > 4) {
- v = *src++;
- *dst0++ = v * m0;
- *dst1++ = v * m1;
- v = *src++;
- *dst0++ = v * m0;
- *dst1++ = v * m1;
- v = *src++;
- *dst0++ = v * m0;
- *dst1++ = v * m1;
- v = *src++;
- *dst0++ = v * m0;
- *dst1++ = v * m1;
- len -= 4;
- }
- while (len > 0) {
- v = *src++;
- *dst0++ = v * m0;
- *dst1++ = v * m1;
- len--;
- }
-}
-
-static void mix_6_to_2_fltp_flt_c(float **samples, float **matrix, int len,
- int out_ch, int in_ch)
-{
- float v0, v1;
- float *src0 = samples[0];
- float *src1 = samples[1];
- float *src2 = samples[2];
- float *src3 = samples[3];
- float *src4 = samples[4];
- float *src5 = samples[5];
- float *dst0 = src0;
- float *dst1 = src1;
- float *m0 = matrix[0];
- float *m1 = matrix[1];
-
- while (len > 0) {
- v0 = *src0++;
- v1 = *src1++;
- *dst0++ = v0 * m0[0] +
- v1 * m0[1] +
- *src2 * m0[2] +
- *src3 * m0[3] +
- *src4 * m0[4] +
- *src5 * m0[5];
- *dst1++ = v0 * m1[0] +
- v1 * m1[1] +
- *src2++ * m1[2] +
- *src3++ * m1[3] +
- *src4++ * m1[4] +
- *src5++ * m1[5];
- len--;
- }
-}
-
-static void mix_2_to_6_fltp_flt_c(float **samples, float **matrix, int len,
- int out_ch, int in_ch)
-{
- float v0, v1;
- float *dst0 = samples[0];
- float *dst1 = samples[1];
- float *dst2 = samples[2];
- float *dst3 = samples[3];
- float *dst4 = samples[4];
- float *dst5 = samples[5];
- float *src0 = dst0;
- float *src1 = dst1;
-
- while (len > 0) {
- v0 = *src0++;
- v1 = *src1++;
- *dst0++ = v0 * matrix[0][0] + v1 * matrix[0][1];
- *dst1++ = v0 * matrix[1][0] + v1 * matrix[1][1];
- *dst2++ = v0 * matrix[2][0] + v1 * matrix[2][1];
- *dst3++ = v0 * matrix[3][0] + v1 * matrix[3][1];
- *dst4++ = v0 * matrix[4][0] + v1 * matrix[4][1];
- *dst5++ = v0 * matrix[5][0] + v1 * matrix[5][1];
- len--;
- }
-}
-
-static av_cold int mix_function_init(AudioMix *am)
-{
- am->func_descr = am->func_descr_generic = "n/a";
- am->mix = am->mix_generic = NULL;
-
- /* no need to set a mix function when we're skipping mixing */
- if (!am->in_matrix_channels || !am->out_matrix_channels)
- return 0;
-
- /* any-to-any C versions */
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
- 0, 0, 1, 1, "C", MIX_FUNC_NAME(FLTP, FLT));
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_S16P, AV_MIX_COEFF_TYPE_FLT,
- 0, 0, 1, 1, "C", MIX_FUNC_NAME(S16P, FLT));
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_S16P, AV_MIX_COEFF_TYPE_Q15,
- 0, 0, 1, 1, "C", MIX_FUNC_NAME(S16P, Q15));
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_S16P, AV_MIX_COEFF_TYPE_Q8,
- 0, 0, 1, 1, "C", MIX_FUNC_NAME(S16P, Q8));
-
- /* channel-specific C versions */
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
- 2, 1, 1, 1, "C", mix_2_to_1_fltp_flt_c);
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_S16P, AV_MIX_COEFF_TYPE_FLT,
- 2, 1, 1, 1, "C", mix_2_to_1_s16p_flt_c);
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_S16P, AV_MIX_COEFF_TYPE_Q8,
- 2, 1, 1, 1, "C", mix_2_to_1_s16p_q8_c);
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
- 1, 2, 1, 1, "C", mix_1_to_2_fltp_flt_c);
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
- 6, 2, 1, 1, "C", mix_6_to_2_fltp_flt_c);
-
- ff_audio_mix_set_func(am, AV_SAMPLE_FMT_FLTP, AV_MIX_COEFF_TYPE_FLT,
- 2, 6, 1, 1, "C", mix_2_to_6_fltp_flt_c);
-
- if (ARCH_X86)
- ff_audio_mix_init_x86(am);
-
- if (!am->mix) {
- av_log(am->avr, AV_LOG_ERROR, "audio_mix: NO FUNCTION FOUND: [fmt=%s] "
- "[c=%s] [%d to %d]\n", av_get_sample_fmt_name(am->fmt),
- coeff_type_names[am->coeff_type], am->in_channels,
- am->out_channels);
- return AVERROR_PATCHWELCOME;
- }
- return 0;
-}
-
-AudioMix *ff_audio_mix_alloc(AVAudioResampleContext *avr)
-{
- AudioMix *am;
- int ret;
-
- am = av_mallocz(sizeof(*am));
- if (!am)
- return NULL;
- am->avr = avr;
-
- if (avr->internal_sample_fmt != AV_SAMPLE_FMT_S16P &&
- avr->internal_sample_fmt != AV_SAMPLE_FMT_FLTP) {
- av_log(avr, AV_LOG_ERROR, "Unsupported internal format for "
- "mixing: %s\n",
- av_get_sample_fmt_name(avr->internal_sample_fmt));
- goto error;
- }
-
- am->fmt = avr->internal_sample_fmt;
- am->coeff_type = avr->mix_coeff_type;
- am->in_layout = avr->in_channel_layout;
- am->out_layout = avr->out_channel_layout;
- am->in_channels = avr->in_channels;
- am->out_channels = avr->out_channels;
-
- /* build matrix if the user did not already set one */
- if (avr->mix_matrix) {
- ret = ff_audio_mix_set_matrix(am, avr->mix_matrix, avr->in_channels);
- if (ret < 0)
- goto error;
- av_freep(&avr->mix_matrix);
- } else {
- double *matrix_dbl = av_mallocz(avr->out_channels * avr->in_channels *
- sizeof(*matrix_dbl));
- if (!matrix_dbl)
- goto error;
-
- ret = avresample_build_matrix(avr->in_channel_layout,
- avr->out_channel_layout,
- avr->center_mix_level,
- avr->surround_mix_level,
- avr->lfe_mix_level,
- avr->normalize_mix_level,
- matrix_dbl,
- avr->in_channels,
- avr->matrix_encoding);
- if (ret < 0) {
- av_free(matrix_dbl);
- goto error;
- }
-
- ret = ff_audio_mix_set_matrix(am, matrix_dbl, avr->in_channels);
- if (ret < 0) {
- av_log(avr, AV_LOG_ERROR, "error setting mix matrix\n");
- av_free(matrix_dbl);
- goto error;
- }
-
- av_free(matrix_dbl);
- }
-
- return am;
-
-error:
- av_free(am);
- return NULL;
-}
-
-void ff_audio_mix_free(AudioMix **am_p)
-{
- AudioMix *am;
-
- if (!*am_p)
- return;
- am = *am_p;
-
- if (am->matrix) {
- av_free(am->matrix[0]);
- am->matrix = NULL;
- }
- memset(am->matrix_q8, 0, sizeof(am->matrix_q8 ));
- memset(am->matrix_q15, 0, sizeof(am->matrix_q15));
- memset(am->matrix_flt, 0, sizeof(am->matrix_flt));
-
- av_freep(am_p);
-}
-
-int ff_audio_mix(AudioMix *am, AudioData *src)
-{
- int use_generic = 1;
- int len = src->nb_samples;
- int i, j;
-
- /* determine whether to use the optimized function based on pointer and
- samples alignment in both the input and output */
- if (am->has_optimized_func) {
- int aligned_len = FFALIGN(len, am->samples_align);
- if (!(src->ptr_align % am->ptr_align) &&
- src->samples_align >= aligned_len) {
- len = aligned_len;
- use_generic = 0;
- }
- }
- av_log(am->avr, AV_LOG_TRACE, "audio_mix: %d samples - %d to %d channels (%s)\n",
- src->nb_samples, am->in_channels, am->out_channels,
- use_generic ? am->func_descr_generic : am->func_descr);
-
- if (am->in_matrix_channels && am->out_matrix_channels) {
- uint8_t **data;
- uint8_t *data0[AVRESAMPLE_MAX_CHANNELS] = { NULL };
-
- if (am->out_matrix_channels < am->out_channels ||
- am->in_matrix_channels < am->in_channels) {
- for (i = 0, j = 0; i < FFMAX(am->in_channels, am->out_channels); i++) {
- if (am->input_skip[i] || am->output_skip[i] || am->output_zero[i])
- continue;
- data0[j++] = src->data[i];
- }
- data = data0;
- } else {
- data = src->data;
- }
-
- if (use_generic)
- am->mix_generic(data, am->matrix, len, am->out_matrix_channels,
- am->in_matrix_channels);
- else
- am->mix(data, am->matrix, len, am->out_matrix_channels,
- am->in_matrix_channels);
- }
-
- if (am->out_matrix_channels < am->out_channels) {
- for (i = 0; i < am->out_channels; i++)
- if (am->output_zero[i])
- av_samples_set_silence(&src->data[i], 0, len, 1, am->fmt);
- }
-
- ff_audio_data_set_channels(src, am->out_channels);
-
- return 0;
-}
-
-int ff_audio_mix_get_matrix(AudioMix *am, double *matrix, int stride)
-{
- int i, o, i0, o0;
-
- if ( am->in_channels <= 0 || am->in_channels > AVRESAMPLE_MAX_CHANNELS ||
- am->out_channels <= 0 || am->out_channels > AVRESAMPLE_MAX_CHANNELS) {
- av_log(am->avr, AV_LOG_ERROR, "Invalid channel counts\n");
- return AVERROR(EINVAL);
- }
-
-#define GET_MATRIX_CONVERT(suffix, scale) \
- if (!am->matrix_ ## suffix[0]) { \
- av_log(am->avr, AV_LOG_ERROR, "matrix is not set\n"); \
- return AVERROR(EINVAL); \
- } \
- for (o = 0, o0 = 0; o < am->out_channels; o++) { \
- for (i = 0, i0 = 0; i < am->in_channels; i++) { \
- if (am->input_skip[i] || am->output_zero[o]) \
- matrix[o * stride + i] = 0.0; \
- else \
- matrix[o * stride + i] = am->matrix_ ## suffix[o0][i0] * \
- (scale); \
- if (!am->input_skip[i]) \
- i0++; \
- } \
- if (!am->output_zero[o]) \
- o0++; \
- }
-
- switch (am->coeff_type) {
- case AV_MIX_COEFF_TYPE_Q8:
- GET_MATRIX_CONVERT(q8, 1.0 / 256.0);
- break;
- case AV_MIX_COEFF_TYPE_Q15:
- GET_MATRIX_CONVERT(q15, 1.0 / 32768.0);
- break;
- case AV_MIX_COEFF_TYPE_FLT:
- GET_MATRIX_CONVERT(flt, 1.0);
- break;
- default:
- av_log(am->avr, AV_LOG_ERROR, "Invalid mix coeff type\n");
- return AVERROR(EINVAL);
- }
-
- return 0;
-}
-
-static void reduce_matrix(AudioMix *am, const double *matrix, int stride)
-{
- int i, o;
-
- memset(am->output_zero, 0, sizeof(am->output_zero));
- memset(am->input_skip, 0, sizeof(am->input_skip));
- memset(am->output_skip, 0, sizeof(am->output_skip));
-
- /* exclude output channels if they can be zeroed instead of mixed */
- for (o = 0; o < am->out_channels; o++) {
- int zero = 1;
-
- /* check if the output is always silent */
- for (i = 0; i < am->in_channels; i++) {
- if (matrix[o * stride + i] != 0.0) {
- zero = 0;
- break;
- }
- }
- /* check if the corresponding input channel makes a contribution to
- any output channel */
- if (o < am->in_channels) {
- for (i = 0; i < am->out_channels; i++) {
- if (matrix[i * stride + o] != 0.0) {
- zero = 0;
- break;
- }
- }
- }
- if (zero) {
- am->output_zero[o] = 1;
- am->out_matrix_channels--;
- if (o < am->in_channels)
- am->in_matrix_channels--;
- }
- }
- if (am->out_matrix_channels == 0 || am->in_matrix_channels == 0) {
- am->out_matrix_channels = 0;
- am->in_matrix_channels = 0;
- return;
- }
-
- /* skip input channels that contribute fully only to the corresponding
- output channel */
- for (i = 0; i < FFMIN(am->in_channels, am->out_channels); i++) {
- int skip = 1;
-
- for (o = 0; o < am->out_channels; o++) {
- int i0;
- if ((o != i && matrix[o * stride + i] != 0.0) ||
- (o == i && matrix[o * stride + i] != 1.0)) {
- skip = 0;
- break;
- }
- /* if the input contributes fully to the output, also check that no
- other inputs contribute to this output */
- if (o == i) {
- for (i0 = 0; i0 < am->in_channels; i0++) {
- if (i0 != i && matrix[o * stride + i0] != 0.0) {
- skip = 0;
- break;
- }
- }
- }
- }
- if (skip) {
- am->input_skip[i] = 1;
- am->in_matrix_channels--;
- }
- }
- /* skip input channels that do not contribute to any output channel */
- for (; i < am->in_channels; i++) {
- int contrib = 0;
-
- for (o = 0; o < am->out_channels; o++) {
- if (matrix[o * stride + i] != 0.0) {
- contrib = 1;
- break;
- }
- }
- if (!contrib) {
- am->input_skip[i] = 1;
- am->in_matrix_channels--;
- }
- }
- if (am->in_matrix_channels == 0) {
- am->out_matrix_channels = 0;
- return;
- }
-
- /* skip output channels that only get full contribution from the
- corresponding input channel */
- for (o = 0; o < FFMIN(am->in_channels, am->out_channels); o++) {
- int skip = 1;
- int o0;
-
- for (i = 0; i < am->in_channels; i++) {
- if ((o != i && matrix[o * stride + i] != 0.0) ||
- (o == i && matrix[o * stride + i] != 1.0)) {
- skip = 0;
- break;
- }
- }
- /* check if the corresponding input channel makes a contribution to
- any other output channel */
- i = o;
- for (o0 = 0; o0 < am->out_channels; o0++) {
- if (o0 != i && matrix[o0 * stride + i] != 0.0) {
- skip = 0;
- break;
- }
- }
- if (skip) {
- am->output_skip[o] = 1;
- am->out_matrix_channels--;
- }
- }
- if (am->out_matrix_channels == 0) {
- am->in_matrix_channels = 0;
- return;
- }
-}
-
-int ff_audio_mix_set_matrix(AudioMix *am, const double *matrix, int stride)
-{
- int i, o, i0, o0, ret;
- char in_layout_name[128];
- char out_layout_name[128];
-
- if ( am->in_channels <= 0 || am->in_channels > AVRESAMPLE_MAX_CHANNELS ||
- am->out_channels <= 0 || am->out_channels > AVRESAMPLE_MAX_CHANNELS) {
- av_log(am->avr, AV_LOG_ERROR, "Invalid channel counts\n");
- return AVERROR(EINVAL);
- }
-
- if (am->matrix) {
- av_free(am->matrix[0]);
- am->matrix = NULL;
- }
-
- am->in_matrix_channels = am->in_channels;
- am->out_matrix_channels = am->out_channels;
-
- reduce_matrix(am, matrix, stride);
-
-#define CONVERT_MATRIX(type, expr) \
- am->matrix_## type[0] = av_mallocz(am->out_matrix_channels * \
- am->in_matrix_channels * \
- sizeof(*am->matrix_## type[0])); \
- if (!am->matrix_## type[0]) \
- return AVERROR(ENOMEM); \
- for (o = 0, o0 = 0; o < am->out_channels; o++) { \
- if (am->output_zero[o] || am->output_skip[o]) \
- continue; \
- if (o0 > 0) \
- am->matrix_## type[o0] = am->matrix_## type[o0 - 1] + \
- am->in_matrix_channels; \
- for (i = 0, i0 = 0; i < am->in_channels; i++) { \
- double v; \
- if (am->input_skip[i] || am->output_zero[i]) \
- continue; \
- v = matrix[o * stride + i]; \
- am->matrix_## type[o0][i0] = expr; \
- i0++; \
- } \
- o0++; \
- } \
- am->matrix = (void **)am->matrix_## type;
-
- if (am->in_matrix_channels && am->out_matrix_channels) {
- switch (am->coeff_type) {
- case AV_MIX_COEFF_TYPE_Q8:
- CONVERT_MATRIX(q8, av_clip_int16(lrint(256.0 * v)))
- break;
- case AV_MIX_COEFF_TYPE_Q15:
- CONVERT_MATRIX(q15, av_clipl_int32(llrint(32768.0 * v)))
- break;
- case AV_MIX_COEFF_TYPE_FLT:
- CONVERT_MATRIX(flt, v)
- break;
- default:
- av_log(am->avr, AV_LOG_ERROR, "Invalid mix coeff type\n");
- return AVERROR(EINVAL);
- }
- }
-
- ret = mix_function_init(am);
- if (ret < 0)
- return ret;
-
- av_get_channel_layout_string(in_layout_name, sizeof(in_layout_name),
- am->in_channels, am->in_layout);
- av_get_channel_layout_string(out_layout_name, sizeof(out_layout_name),
- am->out_channels, am->out_layout);
- av_log(am->avr, AV_LOG_DEBUG, "audio_mix: %s to %s\n",
- in_layout_name, out_layout_name);
- av_log(am->avr, AV_LOG_DEBUG, "matrix size: %d x %d\n",
- am->in_matrix_channels, am->out_matrix_channels);
- for (o = 0; o < am->out_channels; o++) {
- for (i = 0; i < am->in_channels; i++) {
- if (am->output_zero[o])
- av_log(am->avr, AV_LOG_DEBUG, " (ZERO)");
- else if (am->input_skip[i] || am->output_zero[i] || am->output_skip[o])
- av_log(am->avr, AV_LOG_DEBUG, " (SKIP)");
- else
- av_log(am->avr, AV_LOG_DEBUG, " %0.3f ",
- matrix[o * am->in_channels + i]);
- }
- av_log(am->avr, AV_LOG_DEBUG, "\n");
- }
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 05:19:15 +0000