pipewire/spa/plugins/audioconvert/channelmix-ops.c
Wim Taymans d260cb19be audioconvert: compile c version separately
Also compile the c versions in a separate module with their own
flags.
2019-03-28 21:07:53 +01:00

125 lines
4.6 KiB
C

/* Spa
*
* Copyright © 2018 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdio.h>
#include <spa/support/cpu.h>
#include <spa/utils/defs.h>
#define VOLUME_MIN 0.0f
#define VOLUME_NORM 1.0f
#include "channelmix-ops.h"
#define _M(ch) (1UL << SPA_AUDIO_CHANNEL_ ## ch)
#define MASK_MONO _M(FC)|_M(MONO)|_M(UNKNOWN)
#define MASK_STEREO _M(FL)|_M(FR)|_M(UNKNOWN)
#define MASK_QUAD _M(FL)|_M(FR)|_M(RL)|_M(RR)|_M(UNKNOWN)
#define MASK_3_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)
#define MASK_5_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
#define MASK_7_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
typedef void (*channelmix_func_t) (void *data, int n_dst, void * SPA_RESTRICT dst[n_dst],
int n_src, const void * SPA_RESTRICT src[n_src],
const void * SPA_RESTRICT matrix, float v, int n_samples);
#define ANY ((uint32_t)-1)
#define EQ ((uint32_t)-2)
static const struct channelmix_info {
uint32_t src_chan;
uint64_t src_mask;
uint32_t dst_chan;
uint64_t dst_mask;
channelmix_func_t func;
#define FEATURE_SSE SPA_CPU_FLAG_SSE
uint32_t features;
} channelmix_table[] =
{
#if defined (HAVE_SSE)
{ 2, MASK_MONO, 2, MASK_MONO, channelmix_copy_sse, FEATURE_SSE },
{ 2, MASK_STEREO, 2, MASK_STEREO, channelmix_copy_sse, FEATURE_SSE },
{ EQ, 0, EQ, 0, channelmix_copy_sse, FEATURE_SSE },
#endif
{ 2, MASK_MONO, 2, MASK_MONO, channelmix_copy_c, 0 },
{ 2, MASK_STEREO, 2, MASK_STEREO, channelmix_copy_c, 0 },
{ EQ, 0, EQ, 0, channelmix_copy_c, 0 },
{ 1, MASK_MONO, 2, MASK_STEREO, channelmix_f32_1_2_c, 0 },
{ 2, MASK_STEREO, 1, MASK_MONO, channelmix_f32_2_1_c, 0 },
{ 4, MASK_QUAD, 1, MASK_MONO, channelmix_f32_4_1_c, 0 },
{ 4, MASK_3_1, 1, MASK_MONO, channelmix_f32_3p1_1_c, 0 },
#if defined (HAVE_SSE)
{ 2, MASK_STEREO, 4, MASK_QUAD, channelmix_f32_2_4_sse, FEATURE_SSE },
#endif
{ 2, MASK_STEREO, 4, MASK_QUAD, channelmix_f32_2_4_c, 0 },
{ 2, MASK_STEREO, 4, MASK_3_1, channelmix_f32_2_3p1_c, 0 },
{ 2, MASK_STEREO, 6, MASK_5_1, channelmix_f32_2_5p1_c, 0 },
#if defined (HAVE_SSE)
{ 6, MASK_5_1, 2, MASK_STEREO, channelmix_f32_5p1_2_sse, FEATURE_SSE },
#endif
{ 6, MASK_5_1, 2, MASK_STEREO, channelmix_f32_5p1_2_c, 0 },
#if defined (HAVE_SSE)
{ 6, MASK_5_1, 4, MASK_QUAD, channelmix_f32_5p1_4_sse, FEATURE_SSE },
#endif
{ 6, MASK_5_1, 4, MASK_QUAD, channelmix_f32_5p1_4_c, 0 },
#if defined (HAVE_SSE)
{ 6, MASK_5_1, 4, MASK_3_1, channelmix_f32_5p1_3p1_sse, FEATURE_SSE },
#endif
{ 6, MASK_5_1, 4, MASK_3_1, channelmix_f32_5p1_3p1_c, 0 },
{ 8, MASK_7_1, 2, MASK_STEREO, channelmix_f32_7p1_2_c, 0 },
{ 8, MASK_7_1, 4, MASK_QUAD, channelmix_f32_7p1_4_c, 0 },
{ 8, MASK_7_1, 4, MASK_3_1, channelmix_f32_7p1_3p1_c, 0 },
{ ANY, 0, ANY, 0, channelmix_f32_n_m_c, 0 },
};
#define MATCH_CHAN(a,b) ((a) == ANY || (a) == (b))
#define MATCH_FEATURES(a,b) ((a) == 0 || ((a) & (b)) != 0)
#define MATCH_MASK(a,b) ((a) == 0 || ((a) & (b)) == (b))
static const struct channelmix_info *find_channelmix_info(uint32_t src_chan, uint64_t src_mask,
uint32_t dst_chan, uint64_t dst_mask, uint32_t features)
{
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(channelmix_table); i++) {
if (!MATCH_FEATURES(channelmix_table[i].features, features))
continue;
if (src_chan == dst_chan && src_mask == dst_mask)
return &channelmix_table[i];
if (MATCH_CHAN(channelmix_table[i].src_chan, src_chan) &&
MATCH_CHAN(channelmix_table[i].dst_chan, dst_chan) &&
MATCH_MASK(channelmix_table[i].src_mask, src_mask) &&
MATCH_MASK(channelmix_table[i].dst_mask, dst_mask))
return &channelmix_table[i];
}
return NULL;
}