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/* 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/utils/defs.h>
#include <spa/utils/string.h>
#include <spa/param/audio/raw.h>
#include "crossover.h"
#include "delay.h"
#define VOLUME_MIN 0.0f
#define VOLUME_NORM 1.0f
#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)
#define BUFFER_SIZE 4096
#define MAX_TAPS 255
struct channelmix {
uint32_t src_chan;
uint32_t dst_chan;
uint64_t src_mask;
uint64_t dst_mask;
uint32_t cpu_flags;
#define CHANNELMIX_OPTION_MIX_LFE (1<<0) /**< mix LFE */
#define CHANNELMIX_OPTION_NORMALIZE (1<<1) /**< normalize volumes */
#define CHANNELMIX_OPTION_UPMIX (1<<2) /**< do simple upmixing */
uint32_t options;
#define CHANNELMIX_UPMIX_NONE 0 /**< disable upmixing */
#define CHANNELMIX_UPMIX_SIMPLE 1 /**< simple upmixing */
#define CHANNELMIX_UPMIX_PSD 2 /**< Passive Surround Decoding upmixing */
uint32_t upmix;
struct spa_log *log;
const char *func_name;
#define CHANNELMIX_FLAG_ZERO (1<<0) /**< all zero components */
#define CHANNELMIX_FLAG_IDENTITY (1<<1) /**< identity matrix */
#define CHANNELMIX_FLAG_EQUAL (1<<2) /**< all values are equal */
#define CHANNELMIX_FLAG_COPY (1<<3) /**< 1 on diagonal, can be nxm */
uint32_t flags;
float matrix_orig[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];
float matrix[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];
float freq; /* sample frequency */
float lfe_cutoff; /* in Hz, 0 is disabled */
float fc_cutoff; /* in Hz, 0 is disabled */
float rear_delay; /* in ms, 0 is disabled */
float widen; /* stereo widen. 0 is disabled */
uint32_t hilbert_taps; /* to phase shift, 0 disabled */
struct lr4 lr4[SPA_AUDIO_MAX_CHANNELS];
float buffer[2][BUFFER_SIZE];
uint32_t pos[2];
uint32_t delay;
float taps[MAX_TAPS];
uint32_t n_taps;
void (*process) (struct channelmix *mix, void * SPA_RESTRICT dst[],
const void * SPA_RESTRICT src[], uint32_t n_samples);
void (*set_volume) (struct channelmix *mix, float volume, bool mute,
uint32_t n_channel_volumes, float *channel_volumes);
void (*free) (struct channelmix *mix);
void *data;
};
int channelmix_init(struct channelmix *mix);
static const struct channelmix_upmix_info {
const char *label;
const char *description;
uint32_t upmix;
} channelmix_upmix_info[] = {
[CHANNELMIX_UPMIX_NONE] = { "none", "Disabled", CHANNELMIX_UPMIX_NONE },
[CHANNELMIX_UPMIX_SIMPLE] = { "simple", "Simple upmixing", CHANNELMIX_UPMIX_SIMPLE },
[CHANNELMIX_UPMIX_PSD] = { "psd", "Passive Surround Decoding", CHANNELMIX_UPMIX_PSD }
};
static inline uint32_t channelmix_upmix_from_label(const char *label)
{
SPA_FOR_EACH_ELEMENT_VAR(channelmix_upmix_info, i) {
if (spa_streq(i->label, label))
return i->upmix;
}
return CHANNELMIX_UPMIX_NONE;
}
#define channelmix_process(mix,...) (mix)->process(mix, __VA_ARGS__)
#define channelmix_set_volume(mix,...) (mix)->set_volume(mix, __VA_ARGS__)
#define channelmix_free(mix) (mix)->free(mix)
#define DEFINE_FUNCTION(name,arch) \
void channelmix_##name##_##arch(struct channelmix *mix, \
void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[], \
uint32_t n_samples);
#define CHANNELMIX_OPS_MAX_ALIGN 16
DEFINE_FUNCTION(copy, c);
DEFINE_FUNCTION(f32_n_m, c);
DEFINE_FUNCTION(f32_1_2, c);
DEFINE_FUNCTION(f32_2_1, c);
DEFINE_FUNCTION(f32_4_1, c);
DEFINE_FUNCTION(f32_2_4, c);
DEFINE_FUNCTION(f32_2_3p1, c);
DEFINE_FUNCTION(f32_2_5p1, c);
DEFINE_FUNCTION(f32_2_7p1, c);
DEFINE_FUNCTION(f32_3p1_2, c);
DEFINE_FUNCTION(f32_5p1_2, c);
DEFINE_FUNCTION(f32_5p1_3p1, c);
DEFINE_FUNCTION(f32_5p1_4, c);
DEFINE_FUNCTION(f32_7p1_2, c);
DEFINE_FUNCTION(f32_7p1_3p1, c);
DEFINE_FUNCTION(f32_7p1_4, c);
#if defined (HAVE_SSE)
DEFINE_FUNCTION(copy, sse);
DEFINE_FUNCTION(f32_n_m, sse);
DEFINE_FUNCTION(f32_2_3p1, sse);
DEFINE_FUNCTION(f32_2_5p1, sse);
DEFINE_FUNCTION(f32_2_7p1, sse);
DEFINE_FUNCTION(f32_3p1_2, sse);
DEFINE_FUNCTION(f32_5p1_2, sse);
DEFINE_FUNCTION(f32_5p1_3p1, sse);
DEFINE_FUNCTION(f32_5p1_4, sse);
DEFINE_FUNCTION(f32_7p1_4, sse);
#endif
#undef DEFINE_FUNCTION
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