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mono channels with inversion - release

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This commit is contained in:
Philippe G
2021-03-17 20:04:53 -07:00
parent a989fe06c2
commit f79c7d4ace
5 changed files with 28 additions and 33 deletions
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5
components/squeezelite/output.c
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@@ -254,10 +254,7 @@ frames_t _output_frames(frames_t avail) {
out_frames = !silence ? min(size, cont_frames) : size; out_frames = !silence ? min(size, cont_frames) : size;
if (output.channels & 0x01) gainR |= MONO_FLAG; wrote = output.write_cb(out_frames, silence, gainL, gainR, output.channels, cross_gain_in, cross_gain_out, &cross_ptr);
if (output.channels & 0x02) gainL |= MONO_FLAG;
wrote = output.write_cb(out_frames, silence, gainL, gainR, cross_gain_in, cross_gain_out, &cross_ptr);
if (wrote <= 0) { if (wrote <= 0) {
frames -= size; frames -= size;

8
components/squeezelite/output_bt.c
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@@ -40,7 +40,7 @@ static uint8_t *btout;
static frames_t oframes; static frames_t oframes;
static bool stats; static bool stats;
static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, u8_t flags,
s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr); s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr);
#define DECLARE_ALL_MIN_MAX \ #define DECLARE_ALL_MIN_MAX \
@@ -79,7 +79,7 @@ void output_close_bt(void) {
equalizer_close(); equalizer_close();
} }
static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, u8_t flags,
s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr) { s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr) {
assert(btout != NULL); assert(btout != NULL);
@@ -90,7 +90,7 @@ static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t g
_apply_cross(outputbuf, out_frames, cross_gain_in, cross_gain_out, cross_ptr); _apply_cross(outputbuf, out_frames, cross_gain_in, cross_gain_out, cross_ptr);
} }
_apply_gain(outputbuf, out_frames, gainL, gainR); _apply_gain(outputbuf, out_frames, gainL, gainR, flags);
#if BYTES_PER_FRAME == 4 #if BYTES_PER_FRAME == 4
memcpy(btout + oframes * BYTES_PER_FRAME, outputbuf->readp, out_frames * BYTES_PER_FRAME); memcpy(btout + oframes * BYTES_PER_FRAME, outputbuf->readp, out_frames * BYTES_PER_FRAME);
@@ -112,7 +112,7 @@ static int _write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t g
memcpy(btout + oframes * BYTES_PER_FRAME, buf, out_frames * BYTES_PER_FRAME); memcpy(btout + oframes * BYTES_PER_FRAME, buf, out_frames * BYTES_PER_FRAME);
} }
output_visu_export(btout + oframes * BYTES_PER_FRAME, out_frames, output.current_sample_rate, silence, ((gainL & ~MONO_FLAG) + (gainR & ~MONO_FLAG)) / 2); output_visu_export(btout + oframes * BYTES_PER_FRAME, out_frames, output.current_sample_rate, silence, (gainL + gainR) / 2);
oframes += out_frames; oframes += out_frames;

8
components/squeezelite/output_i2s.c
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@@ -101,7 +101,7 @@ static struct {
DECLARE_ALL_MIN_MAX; DECLARE_ALL_MIN_MAX;
static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, u8_t flags,
s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr); s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr);
static void *output_thread_i2s(void *arg); static void *output_thread_i2s(void *arg);
static void output_thread_i2s_stats(void *arg); static void output_thread_i2s_stats(void *arg);
@@ -398,20 +398,20 @@ bool output_volume_i2s(unsigned left, unsigned right) {
/**************************************************************************************** /****************************************************************************************
* Write frames to the output buffer * Write frames to the output buffer
*/ */
static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, u8_t flags,
s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr) { s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr) {
if (!silence) { if (!silence) {
if (output.fade == FADE_ACTIVE && output.fade_dir == FADE_CROSS && *cross_ptr) { if (output.fade == FADE_ACTIVE && output.fade_dir == FADE_CROSS && *cross_ptr) {
_apply_cross(outputbuf, out_frames, cross_gain_in, cross_gain_out, cross_ptr); _apply_cross(outputbuf, out_frames, cross_gain_in, cross_gain_out, cross_ptr);
} }
_apply_gain(outputbuf, out_frames, gainL, gainR); _apply_gain(outputbuf, out_frames, gainL, gainR, flags);
memcpy(obuf + oframes * BYTES_PER_FRAME, outputbuf->readp, out_frames * BYTES_PER_FRAME); memcpy(obuf + oframes * BYTES_PER_FRAME, outputbuf->readp, out_frames * BYTES_PER_FRAME);
} else { } else {
memcpy(obuf + oframes * BYTES_PER_FRAME, silencebuf, out_frames * BYTES_PER_FRAME); memcpy(obuf + oframes * BYTES_PER_FRAME, silencebuf, out_frames * BYTES_PER_FRAME);
} }
output_visu_export(obuf + oframes * BYTES_PER_FRAME, out_frames, output.current_sample_rate, silence, ((gainL & ~MONO_FLAG) + (gainR & ~MONO_FLAG)) / 2); output_visu_export(obuf + oframes * BYTES_PER_FRAME, out_frames, output.current_sample_rate, silence, (gainL + gainR) / 2);
oframes += out_frames; oframes += out_frames;
return out_frames; return out_frames;

23
components/squeezelite/output_pack.c
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@@ -43,29 +43,26 @@ s32_t to_gain(float f) {
return (s32_t)(f * 65536.0F); return (s32_t)(f * 65536.0F);
} }
void _scale_and_pack_frames(void *outputptr, s32_t *inputptr, frames_t cnt, s32_t gainL, s32_t gainR, output_format format) { void _scale_and_pack_frames(void *outputptr, s32_t *inputptr, frames_t cnt, s32_t gainL, s32_t gainR, u8_t flags, output_format format) {
// in-place copy input samples if mono/combined is used (never happens with DSD active) // in-place copy input samples if mono/combined is used (never happens with DSD active)
if ((gainR & MONO_FLAG) && (gainL & MONO_FLAG)) { if ((flags & MONO_LEFT) && (flags & MONO_RIGHT)) {
s32_t *ptr = inputptr; s32_t *ptr = inputptr;
frames_t count = cnt; frames_t count = cnt;
gainL &= ~MONO_FLAG; gainR &= ~MONO_FLAG;
while (count--) { while (count--) {
// use 64 bits integer for purists but should really not care // use 64 bits integer for purists but should really not care
*ptr = *(ptr + 1) = ((s64_t) *ptr + (s64_t) *(ptr + 1)) / 2; *ptr = *(ptr + 1) = ((s64_t) *ptr + (s64_t) *(ptr + 1)) / 2;
ptr += 2; ptr += 2;
} }
} else if (gainL & MONO_FLAG) { } else if (flags & MONO_RIGHT) {
s32_t *ptr = inputptr + 1; s32_t *ptr = inputptr + 1;
frames_t count = cnt; frames_t count = cnt;
gainL &= ~MONO_FLAG;
while (count--) { while (count--) {
*(ptr - 1) = *ptr; *(ptr - 1) = *ptr;
ptr += 2; ptr += 2;
} }
} else if (gainR & MONO_FLAG) { } else if (flags & MONO_LEFT) {
s32_t *ptr = inputptr; s32_t *ptr = inputptr;
frames_t count = cnt; frames_t count = cnt;
gainR &= ~MONO_FLAG;
while (count--) { while (count--) {
*(ptr + 1) = *ptr; *(ptr + 1) = *ptr;
ptr += 2; ptr += 2;
@@ -383,24 +380,24 @@ void _apply_cross(struct buffer *outputbuf, frames_t out_frames, s32_t cross_gai
#if !WIN #if !WIN
inline inline
#endif #endif
void _apply_gain(struct buffer *outputbuf, frames_t count, s32_t gainL, s32_t gainR) { void _apply_gain(struct buffer *outputbuf, frames_t count, s32_t gainL, s32_t gainR, u8_t flags) {
if (gainL == FIXED_ONE && gainR == FIXED_ONE) { if (gainL == FIXED_ONE && gainR == FIXED_ONE && !(flags & (MONO_LEFT | MONO_RIGHT))) {
return; return;
} if ((gainR & MONO_FLAG) && (gainL & MONO_FLAG)) { } else if ((flags & MONO_LEFT) && (flags & MONO_RIGHT)) {
ISAMPLE_T *ptrL = (ISAMPLE_T *)(void *)outputbuf->readp; ISAMPLE_T *ptrL = (ISAMPLE_T *)(void *)outputbuf->readp;
ISAMPLE_T *ptrR = (ISAMPLE_T *)(void *)outputbuf->readp + 1; ISAMPLE_T *ptrR = (ISAMPLE_T *)(void *)outputbuf->readp + 1;
gainL &= ~MONO_FLAG; gainR &= ~MONO_FLAG;
while (count--) { while (count--) {
*ptrL = *ptrR = (gain(gainL, *ptrL) + gain(gainR, *ptrR)) / 2; *ptrL = *ptrR = (gain(gainL, *ptrL) + gain(gainR, *ptrR)) / 2;
ptrL += 2; ptrR += 2; ptrL += 2; ptrR += 2;
} }
} else if (gainL & MONO_FLAG) {
} else if (flags & MONO_RIGHT) {
ISAMPLE_T *ptr = (ISAMPLE_T *)(void *)outputbuf->readp + 1; ISAMPLE_T *ptr = (ISAMPLE_T *)(void *)outputbuf->readp + 1;
while (count--) { while (count--) {
*(ptr - 1) = *ptr = gain(gainR, *ptr); *(ptr - 1) = *ptr = gain(gainR, *ptr);
ptr += 2; ptr += 2;
} }
} else if (gainR & MONO_FLAG) { } else if (flags & MONO_LEFT) {
ISAMPLE_T *ptr = (ISAMPLE_T *)(void *)outputbuf->readp; ISAMPLE_T *ptr = (ISAMPLE_T *)(void *)outputbuf->readp;
while (count--) { while (count--) {
*(ptr + 1) = *ptr = gain(gainL, *ptr); *(ptr + 1) = *ptr = gain(gainL, *ptr);

9
components/squeezelite/squeezelite.h
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@@ -472,7 +472,6 @@ void _wake_create(event_event*);
#define MAX_SILENCE_FRAMES 2048 #define MAX_SILENCE_FRAMES 2048
#define FIXED_ONE 0x10000 #define FIXED_ONE 0x10000
#define MONO_FLAG 0x20000
#ifndef BYTES_PER_FRAME #ifndef BYTES_PER_FRAME
#define BYTES_PER_FRAME 8 #define BYTES_PER_FRAME 8
@@ -655,6 +654,8 @@ typedef enum { FADE_INACTIVE = 0, FADE_DUE, FADE_ACTIVE } fade_state;
typedef enum { FADE_UP = 1, FADE_DOWN, FADE_CROSS } fade_dir; typedef enum { FADE_UP = 1, FADE_DOWN, FADE_CROSS } fade_dir;
typedef enum { FADE_NONE = 0, FADE_CROSSFADE, FADE_IN, FADE_OUT, FADE_INOUT } fade_mode; typedef enum { FADE_NONE = 0, FADE_CROSSFADE, FADE_IN, FADE_OUT, FADE_INOUT } fade_mode;
#define MONO_RIGHT 0x02
#define MONO_LEFT 0x01
#define MAX_SUPPORTED_SAMPLERATES 18 #define MAX_SUPPORTED_SAMPLERATES 18
#define TEST_RATES = { 768000, 705600, 384000, 352800, 192000, 176400, 96000, 88200, 48000, 44100, 32000, 24000, 22500, 16000, 12000, 11025, 8000, 0 } #define TEST_RATES = { 768000, 705600, 384000, 352800, 192000, 176400, 96000, 88200, 48000, 44100, 32000, 24000, 22500, 16000, 12000, 11025, 8000, 0 }
@@ -675,7 +676,7 @@ struct outputstate {
unsigned latency; unsigned latency;
int pa_hostapi_option; int pa_hostapi_option;
#endif #endif
int (* write_cb)(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr); int (* write_cb)(frames_t out_frames, bool silence, s32_t gainL, s32_t gainR, u8_t flags, s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr);
unsigned start_frames; unsigned start_frames;
unsigned frames_played; unsigned frames_played;
unsigned frames_played_dmp;// frames played at the point delay is measured unsigned frames_played_dmp;// frames played at the point delay is measured
@@ -758,9 +759,9 @@ void output_close_stdout(void);
#endif #endif
// output_pack.c // output_pack.c
void _scale_and_pack_frames(void *outputptr, s32_t *inputptr, frames_t cnt, s32_t gainL, s32_t gainR, output_format format); void _scale_and_pack_frames(void *outputptr, s32_t *inputptr, frames_t cnt, s32_t gainL, s32_t gainR, u8_t flags, output_format format);
void _apply_cross(struct buffer *outputbuf, frames_t out_frames, s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr); void _apply_cross(struct buffer *outputbuf, frames_t out_frames, s32_t cross_gain_in, s32_t cross_gain_out, ISAMPLE_T **cross_ptr);
void _apply_gain(struct buffer *outputbuf, frames_t count, s32_t gainL, s32_t gainR); void _apply_gain(struct buffer *outputbuf, frames_t count, s32_t gainL, s32_t gainR, u8_t flags);
s32_t gain(s32_t gain, s32_t sample); s32_t gain(s32_t gain, s32_t sample);
s32_t to_gain(float f); s32_t to_gain(float f);