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Add support for 24bit samples encoded in the LSB of 32 bit words

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This commit is contained in:
Lennart Poettering 2009-01-16 18:39:36 +01:00
parent 6dc76d1158
commit 4a13763797
13 changed files with 339 additions and 19 deletions
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8
src/modules/alsa/alsa-util.c
View file

@ -234,6 +234,8 @@ static int set_format(snd_pcm_t *pcm_handle, snd_pcm_hw_params_t *hwparams, pa_s
[PA_SAMPLE_S32BE] = SND_PCM_FORMAT_S32_BE,
[PA_SAMPLE_S24LE] = SND_PCM_FORMAT_S24_3LE,
[PA_SAMPLE_S24BE] = SND_PCM_FORMAT_S24_3BE,
[PA_SAMPLE_S24_32LE] = SND_PCM_FORMAT_S24_LE,
[PA_SAMPLE_S24_32BE] = SND_PCM_FORMAT_S24_BE,
};
static const pa_sample_format_t try_order[] = {
@ -241,6 +243,8 @@ static int set_format(snd_pcm_t *pcm_handle, snd_pcm_hw_params_t *hwparams, pa_s
PA_SAMPLE_FLOAT32RE,
PA_SAMPLE_S32NE,
PA_SAMPLE_S32RE,
PA_SAMPLE_S24_32NE,
PA_SAMPLE_S24_32RE,
PA_SAMPLE_S24NE,
PA_SAMPLE_S24RE,
PA_SAMPLE_S16NE,
@ -267,6 +271,10 @@ static int set_format(snd_pcm_t *pcm_handle, snd_pcm_hw_params_t *hwparams, pa_s
*f = PA_SAMPLE_S24LE;
else if (*f == PA_SAMPLE_S24LE)
*f = PA_SAMPLE_S24BE;
else if (*f == PA_SAMPLE_S24_32BE)
*f = PA_SAMPLE_S24_32LE;
else if (*f == PA_SAMPLE_S24_32LE)
*f = PA_SAMPLE_S24_32BE;
else if (*f == PA_SAMPLE_S16BE)
*f = PA_SAMPLE_S16LE;
else if (*f == PA_SAMPLE_S16LE)

2
src/modules/oss/oss-util.c
View file

@ -166,6 +166,8 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss) {
[PA_SAMPLE_S32BE] = AFMT_QUERY, /* not supported */
[PA_SAMPLE_S24LE] = AFMT_QUERY, /* not supported */
[PA_SAMPLE_S24BE] = AFMT_QUERY, /* not supported */
[PA_SAMPLE_S24_32LE] = AFMT_QUERY, /* not supported */
[PA_SAMPLE_S24_32BE] = AFMT_QUERY, /* not supported */
};
pa_assert(fd >= 0);

16
src/pulse/sample.c
View file

@ -49,7 +49,9 @@ size_t pa_sample_size(const pa_sample_spec *spec) {
[PA_SAMPLE_S32LE] = 4,
[PA_SAMPLE_S32BE] = 4,
[PA_SAMPLE_S24LE] = 3,
[PA_SAMPLE_S24BE] = 3
[PA_SAMPLE_S24BE] = 3,
[PA_SAMPLE_S24_32LE] = 4,
[PA_SAMPLE_S24_32BE] = 4
};
pa_assert(spec);
@ -129,6 +131,8 @@ const char *pa_sample_format_to_string(pa_sample_format_t f) {
[PA_SAMPLE_S32BE] = "s32be",
[PA_SAMPLE_S24LE] = "s24le",
[PA_SAMPLE_S24BE] = "s24be",
[PA_SAMPLE_S24_32LE] = "s24-32le",
[PA_SAMPLE_S24_32BE] = "s24-32be",
};
if (f < 0 || f >= PA_SAMPLE_MAX)
@ -198,7 +202,7 @@ pa_sample_format_t pa_parse_sample_format(const char *format) {
return PA_SAMPLE_S32BE;
else if (strcasecmp(format, "s32ne") == 0 || strcasecmp(format, "s32") == 0 || strcasecmp(format, "32") == 0)
return PA_SAMPLE_S32NE;
else if (strcasecmp(format, "s24re") == 0)
else if (strcasecmp(format, "s32re") == 0)
return PA_SAMPLE_S24RE;
else if (strcasecmp(format, "s24le") == 0)
return PA_SAMPLE_S24LE;
@ -208,6 +212,14 @@ pa_sample_format_t pa_parse_sample_format(const char *format) {
return PA_SAMPLE_S24NE;
else if (strcasecmp(format, "s24re") == 0)
return PA_SAMPLE_S24RE;
else if (strcasecmp(format, "s24-32le") == 0)
return PA_SAMPLE_S24LE;
else if (strcasecmp(format, "s24-32be") == 0)
return PA_SAMPLE_S24BE;
else if (strcasecmp(format, "s24-32ne") == 0 || strcasecmp(format, "s24-32") == 0)
return PA_SAMPLE_S24NE;
else if (strcasecmp(format, "s24-32re") == 0)
return PA_SAMPLE_S24RE;
return -1;
}

46
src/pulse/sample.h
View file

@ -51,8 +51,10 @@
* \li PA_SAMPLE_ULAW - 8 bit mu-Law.
* \li PA_SAMPLE_S32LE - Signed 32 bit integer PCM, little endian.
* \li PA_SAMPLE_S32BE - Signed 32 bit integer PCM, big endian.
* \li PA_SAMPLE_242LE - Signed 24 bit integer PCM packed, little endian.
* \li PA_SAMPLE_242BE - Signed 24 bit integer PCM packed, big endian.
* \li PA_SAMPLE_S24LE - Signed 24 bit integer PCM packed, little endian.
* \li PA_SAMPLE_S24BE - Signed 24 bit integer PCM packed, big endian.
* \li PA_SAMPLE_S24_32LE - Signed 24 bit integer PCM in LSB of 32 bit words, little endian.
* \li PA_SAMPLE_S24_32BE - Signed 24 bit integer PCM in LSB of 32 bit words, big endian.
*
* The floating point sample formats have the range from -1.0 to 1.0.
*
@ -61,14 +63,14 @@
*
* \section rate_sec Sample Rates
*
* PulseAudio supports any sample rate between 1 Hz and 4 GHz. There is no
* PulseAudio supports any sample rate between 1 Hz and 192000 Hz. There is no
* point trying to exceed the sample rate of the output device though as the
* signal will only get downsampled, consuming CPU on the machine running the
* server.
*
* \section chan_sec Channels
*
* PulseAudio supports up to 16 individiual channels. The order of the
* PulseAudio supports up to 32 individiual channels. The order of the
* channels is up to the application, but they must be continous. To map
* channels to speakers, see \ref channelmap.
*
@ -138,10 +140,10 @@ typedef enum pa_sample_format {
/**< Signed 16 Bit PCM, big endian */
PA_SAMPLE_FLOAT32LE,
/**< 32 Bit IEEE floating point, little endian, range -1 to 1 */
/**< 32 Bit IEEE floating point, little endian (PC), range -1.0 to 1.0 */
PA_SAMPLE_FLOAT32BE,
/**< 32 Bit IEEE floating point, big endian, range -1 to 1 */
/**< 32 Bit IEEE floating point, big endian, range -1.0 to 1.0 */
PA_SAMPLE_S32LE,
/**< Signed 32 Bit PCM, little endian (PC) */
@ -150,10 +152,16 @@ typedef enum pa_sample_format {
/**< Signed 32 Bit PCM, big endian */
PA_SAMPLE_S24LE,
/**< Signed 24 Bit PCM packed, little endian (PC) */
/**< Signed 24 Bit PCM packed, little endian (PC). \since 0.9.15 */
PA_SAMPLE_S24BE,
/**< Signed 24 Bit PCM packed, big endian */
/**< Signed 24 Bit PCM packed, big endian. \since 0.9.15 */
PA_SAMPLE_S24_32LE,
/**< Signed 24 Bit PCM in LSB of 32 Bit words, little endian (PC). \since 0.9.15 */
PA_SAMPLE_S24_32BE,
/**< Signed 24 Bit PCM in LSB of 32 Bit words, big endian. \since 0.9.15 */
PA_SAMPLE_MAX,
/**< Upper limit of valid sample types */
@ -169,16 +177,21 @@ typedef enum pa_sample_format {
#define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32BE
/** Signed 32 Bit PCM, native endian */
#define PA_SAMPLE_S32NE PA_SAMPLE_S32BE
/** Signed 24 Bit PCM packed, native endian */
/** Signed 24 Bit PCM packed, native endian. \since 0.9.15 */
#define PA_SAMPLE_S24NE PA_SAMPLE_S24BE
/** Signed 24 Bit PCM in LSB of 32 Bit words, native endian. \since 0.9.15 */
#define PA_SAMPLE_S24_32NE PA_SAMPLE_S24_32BE
/** Signed 16 Bit PCM reverse endian */
#define PA_SAMPLE_S16RE PA_SAMPLE_S16LE
/** 32 Bit IEEE floating point, reverse endian */
#define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32LE
/** Signed 32 Bit PCM, reverse endian */
#define PA_SAMPLE_S32RE PA_SAMPLE_S32LE
/** Signed 24 Bit PCM, packed reverse endian */
#define PA_SAMPLE_S24RE PA_SAMPLE_242LE
/** Signed 24 Bit PCM, packed reverse endian. \since 0.9.15 */
#define PA_SAMPLE_S24RE PA_SAMPLE_S24LE
/** Signed 24 Bit PCM, in LSB of 32 Bit words, reverse endian. \since 0.9.15 */
#define PA_SAMPLE_S24_32RE PA_SAMPLE_S24_32LE
#else
/** Signed 16 Bit PCM, native endian */
#define PA_SAMPLE_S16NE PA_SAMPLE_S16LE
@ -186,16 +199,21 @@ typedef enum pa_sample_format {
#define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32LE
/** Signed 32 Bit PCM, native endian */
#define PA_SAMPLE_S32NE PA_SAMPLE_S32LE
/** Signed 24 Bit PCM packed, native endian */
/** Signed 24 Bit PCM packed, native endian. \since 0.9.15 */
#define PA_SAMPLE_S24NE PA_SAMPLE_S24LE
/** Signed 24 Bit PCM in LSB of 32 Bit words, native endian. \since 0.9.15 */
#define PA_SAMPLE_S24_32NE PA_SAMPLE_S24_32LE
/** Signed 16 Bit PCM, reverse endian */
#define PA_SAMPLE_S16RE PA_SAMPLE_S16BE
/** 32 Bit IEEE floating point, reverse endian */
#define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32BE
/** Signed 32 Bit PCM, reverse endian */
#define PA_SAMPLE_S32RE PA_SAMPLE_S32BE
/** Signed 24 Bit PCM packed, reverse endian */
/** Signed 24 Bit PCM, packed reverse endian. \since 0.9.15 */
#define PA_SAMPLE_S24RE PA_SAMPLE_S24BE
/** Signed 24 Bit PCM, in LSB of 32 Bit words, reverse endian. \since 0.9.15 */
#define PA_SAMPLE_S24_32RE PA_SAMPLE_S24_32BE
#endif
/** A Shortcut for PA_SAMPLE_FLOAT32NE */
@ -214,6 +232,8 @@ typedef enum pa_sample_format {
#define PA_SAMPLE_S32BE PA_SAMPLE_S32BE
#define PA_SAMPLE_S24LE PA_SAMPLE_S24LE
#define PA_SAMPLE_S24BE PA_SAMPLE_S24BE
#define PA_SAMPLE_S24_32LE PA_SAMPLE_S24_32LE
#define PA_SAMPLE_S24_32BE PA_SAMPLE_S24_32BE
/** \endcond */
/** A sample format and attribute specification */

1
src/pulse/stream.c
View file

@ -88,6 +88,7 @@ pa_stream *pa_stream_new_with_proplist(
PA_CHECK_VALIDITY_RETURN_NULL(c, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 12 || (ss->format != PA_SAMPLE_S32LE && ss->format != PA_SAMPLE_S32BE), PA_ERR_NOTSUPPORTED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 15 || (ss->format != PA_SAMPLE_S24LE && ss->format != PA_SAMPLE_S24BE), PA_ERR_NOTSUPPORTED);
PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 15 || (ss->format != PA_SAMPLE_S24_32LE && ss->format != PA_SAMPLE_S24_32BE), PA_ERR_NOTSUPPORTED);
PA_CHECK_VALIDITY_RETURN_NULL(c, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID);
PA_CHECK_VALIDITY_RETURN_NULL(c, name || (p && pa_proplist_contains(p, PA_PROP_MEDIA_NAME)), PA_ERR_INVALID);

4
src/pulsecore/protocol-native.c
View file

@ -2642,9 +2642,9 @@ static void fixup_sample_spec(pa_native_connection *c, pa_sample_spec *fixed, co
}
if (c->version < 15) {
if (fixed->format == PA_SAMPLE_S24LE)
if (fixed->format == PA_SAMPLE_S24LE || fixed->format == PA_SAMPLE_S24_32LE)
fixed->format = PA_SAMPLE_FLOAT32LE;
if (fixed->format == PA_SAMPLE_S24BE)
if (fixed->format == PA_SAMPLE_S24BE || fixed->format == PA_SAMPLE_S24_32BE)
fixed->format = PA_SAMPLE_FLOAT32BE;
}
}

4
src/pulsecore/resampler.c
View file

@ -258,9 +258,11 @@ pa_resampler* pa_resampler_new(
if (a->format == PA_SAMPLE_S32NE || a->format == PA_SAMPLE_S32RE ||
a->format == PA_SAMPLE_FLOAT32NE || a->format == PA_SAMPLE_FLOAT32RE ||
a->format == PA_SAMPLE_S24NE || a->format == PA_SAMPLE_S24RE ||
a->format == PA_SAMPLE_S24_32NE || a->format == PA_SAMPLE_S24_32RE ||
b->format == PA_SAMPLE_S32NE || b->format == PA_SAMPLE_S32RE ||
b->format == PA_SAMPLE_FLOAT32NE || b->format == PA_SAMPLE_FLOAT32RE ||
b->format == PA_SAMPLE_S24NE || b->format == PA_SAMPLE_S24RE)
b->format == PA_SAMPLE_S24NE || b->format == PA_SAMPLE_S24RE ||
b->format == PA_SAMPLE_S24_32NE || b->format == PA_SAMPLE_S24_32RE)
r->work_format = PA_SAMPLE_FLOAT32NE;
else
r->work_format = PA_SAMPLE_S16NE;

120
src/pulsecore/sample-util.c
View file

@ -85,6 +85,8 @@ static uint8_t silence_byte(pa_sample_format_t format) {
case PA_SAMPLE_FLOAT32BE:
case PA_SAMPLE_S24LE:
case PA_SAMPLE_S24BE:
case PA_SAMPLE_S24_32LE:
case PA_SAMPLE_S24_32BE:
return 0;
case PA_SAMPLE_ALAW:
return 0xd5;
@ -414,6 +416,78 @@ size_t pa_mix(
break;
}
case PA_SAMPLE_S24_32NE: {
unsigned channel = 0;
calc_linear_integer_stream_volumes(streams, nstreams, volume, spec);
while (data < end) {
int64_t sum = 0;
unsigned i;
for (i = 0; i < nstreams; i++) {
pa_mix_info *m = streams + i;
int32_t cv = m->linear[channel].i;
int64_t v;
if (PA_UNLIKELY(cv <= 0))
continue;
v = (int32_t) (*((uint32_t*)m->ptr) << 8);
v = (v * cv) / 0x10000;
sum += v;
m->ptr = (uint8_t*) m->ptr + sizeof(int32_t);
}
sum = PA_CLAMP_UNLIKELY(sum, -0x80000000LL, 0x7FFFFFFFLL);
*((uint32_t*) data) = ((uint32_t) (int32_t) sum) >> 8;
data = (uint8_t*) data + sizeof(uint32_t);
if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
break;
}
case PA_SAMPLE_S24_32RE: {
unsigned channel = 0;
calc_linear_integer_stream_volumes(streams, nstreams, volume, spec);
while (data < end) {
int64_t sum = 0;
unsigned i;
for (i = 0; i < nstreams; i++) {
pa_mix_info *m = streams + i;
int32_t cv = m->linear[channel].i;
int64_t v;
if (PA_UNLIKELY(cv <= 0))
continue;
v = (int32_t) (PA_UINT32_SWAP(*((uint32_t*) m->ptr)) << 8);
v = (v * cv) / 0x10000;
sum += v;
m->ptr = (uint8_t*) m->ptr + 3;
}
sum = PA_CLAMP_UNLIKELY(sum, -0x80000000LL, 0x7FFFFFFFLL);
*((uint32_t*) data) = PA_INT32_SWAP(((uint32_t) (int32_t) sum) >> 8);
data = (uint8_t*) data + sizeof(uint32_t);
if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
break;
}
case PA_SAMPLE_U8: {
unsigned channel = 0;
@ -765,6 +839,52 @@ void pa_volume_memchunk(
break;
}
case PA_SAMPLE_S24_32NE: {
uint32_t *d, *e;
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
calc_linear_integer_volume(linear, volume);
e = (uint32_t*) ptr + c->length/sizeof(uint32_t);
for (channel = 0, d = ptr; d < e; d++) {
int64_t t;
t = (int64_t) ((int32_t) (*d << 8));
t = (t * linear[channel]) / 0x10000;
t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
*d = ((uint32_t) ((int32_t) t)) >> 8;
if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
break;
}
case PA_SAMPLE_S24_32RE: {
uint32_t *d, *e;
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
calc_linear_integer_volume(linear, volume);
e = (uint32_t*) ptr + c->length/sizeof(uint32_t);
for (channel = 0, d = ptr; d < e; d++) {
int64_t t;
t = (int64_t) ((int32_t) (PA_UINT32_SWAP(*d) << 8));
t = (t * linear[channel]) / 0x10000;
t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
*d = PA_UINT32_SWAP(((uint32_t) ((int32_t) t)) >> 8);
if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
break;
}
case PA_SAMPLE_U8: {
uint8_t *d, *e;
unsigned channel;

14
src/pulsecore/sconv-s16be.c
View file

@ -27,9 +27,13 @@
#define INT16_FROM PA_INT16_FROM_BE
#define INT16_TO PA_INT16_TO_BE
#define UINT16_FROM PA_UINT16_FROM_BE
#define UINT16_TO PA_UINT16_TO_BE
#define INT32_FROM PA_INT32_FROM_BE
#define INT32_TO PA_INT32_TO_BE
#define UINT32_FROM PA_UINT32_FROM_BE
#define UINT32_TO PA_UINT32_TO_BE
#define READ24 PA_READ24BE
#define WRITE24 PA_WRITE24BE
@ -49,6 +53,11 @@
#define pa_sconv_s24le_to_float32re pa_sconv_s24be_to_float32re
#define pa_sconv_s24le_from_float32re pa_sconv_s24be_from_float32re
#define pa_sconv_s24_32le_to_float32ne pa_sconv_s24_32be_to_float32ne
#define pa_sconv_s24_32le_from_float32ne pa_sconv_s24_32be_from_float32ne
#define pa_sconv_s24_32le_to_float32re pa_sconv_s24_32be_to_float32re
#define pa_sconv_s24_32le_from_float32re pa_sconv_s24_32be_from_float32re
#define pa_sconv_s32le_to_s16ne pa_sconv_s32be_to_s16ne
#define pa_sconv_s32le_from_s16ne pa_sconv_s32be_from_s16ne
#define pa_sconv_s32le_to_s16re pa_sconv_s32be_to_s16re
@ -59,6 +68,11 @@
#define pa_sconv_s24le_to_s16re pa_sconv_s24be_to_s16re
#define pa_sconv_s24le_from_s16re pa_sconv_s24be_from_s16re
#define pa_sconv_s24_32le_to_s16ne pa_sconv_s24_32be_to_s16ne
#define pa_sconv_s24_32le_from_s16ne pa_sconv_s24_32be_from_s16ne
#define pa_sconv_s24_32le_to_s16re pa_sconv_s24_32be_to_s16re
#define pa_sconv_s24_32le_from_s16re pa_sconv_s24_32be_from_s16re
#ifdef WORDS_BIGENDIAN
#define SWAP_WORDS 0
#else

10
src/pulsecore/sconv-s16be.h
View file

@ -39,6 +39,11 @@ void pa_sconv_s24be_from_float32ne(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s24be_to_float32re(unsigned n, const uint8_t *a, float *b);
void pa_sconv_s24be_from_float32re(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s24_32be_to_float32ne(unsigned n, const uint8_t *a, float *b);
void pa_sconv_s24_32be_from_float32ne(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s24_32be_to_float32re(unsigned n, const uint8_t *a, float *b);
void pa_sconv_s24_32be_from_float32re(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s32be_to_s16ne(unsigned n, const int32_t *a, int16_t *b);
void pa_sconv_s32be_from_s16ne(unsigned n, const int16_t *a, int32_t *b);
void pa_sconv_s32be_to_s16re(unsigned n, const int32_t *a, int16_t *b);
@ -49,6 +54,11 @@ void pa_sconv_s24be_from_s16ne(unsigned n, const int16_t *a, uint8_t *b);
void pa_sconv_s24be_to_s16re(unsigned n, const uint8_t *a, int16_t *b);
void pa_sconv_s24be_from_s16re(unsigned n, const int16_t *a, uint8_t *b);
void pa_sconv_s24_32be_to_s16ne(unsigned n, const uint8_t *a, int16_t *b);
void pa_sconv_s24_32be_from_s16ne(unsigned n, const int16_t *a, uint8_t *b);
void pa_sconv_s24_32be_to_s16re(unsigned n, const uint8_t *a, int16_t *b);
void pa_sconv_s24_32be_from_s16re(unsigned n, const int16_t *a, uint8_t *b);
#ifdef WORDS_BIGENDIAN
#define pa_sconv_float32be_to_s16ne pa_sconv_s16be_from_float32ne
#define pa_sconv_float32be_from_s16ne pa_sconv_s16be_to_float32ne

115
src/pulsecore/sconv-s16le.c
View file

@ -41,23 +41,34 @@
#ifndef INT16_FROM
#define INT16_FROM PA_INT16_FROM_LE
#endif
#ifndef UINT16_FROM
#define UINT16_FROM PA_UINT16_FROM_LE
#endif
#ifndef INT16_TO
#define INT16_TO PA_INT16_TO_LE
#endif
#ifndef UINT16_TO
#define UINT16_TO PA_UINT16_TO_LE
#endif
#ifndef INT32_FROM
#define INT32_FROM PA_INT32_FROM_LE
#endif
#ifndef UINT32_FROM
#define UINT32_FROM PA_UINT32_FROM_LE
#endif
#ifndef INT32_TO
#define INT32_TO PA_INT32_TO_LE
#endif
#ifndef UINT32_TO
#define UINT32_TO PA_UINT32_TO_LE
#endif
#ifndef READ24
#define READ24 PA_READ24LE
#endif
#ifndef WRITE24
#define WRITE24 PA_WRITE24LE
#endif
@ -353,3 +364,105 @@ void pa_sconv_s24le_from_float32re(unsigned n, const float *a, uint8_t *b) {
b+=3;
}
}
void pa_sconv_s24_32le_to_s16ne(unsigned n, const uint32_t *a, int16_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
*b = (int16_t) ((int32_t) (UINT32_FROM(*a) << 8) >> 16);
a++;
b++;
}
}
void pa_sconv_s24_32le_to_s16re(unsigned n, const uint32_t *a, int16_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
int16_t s = (int16_t) ((int32_t) (UINT32_FROM(*a) << 8) >> 16);
*b = PA_INT16_SWAP(s);
a++;
b++;
}
}
void pa_sconv_s24_32le_from_s16ne(unsigned n, const int16_t *a, uint32_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
*b = UINT32_TO(((uint32_t) ((int32_t) *a << 16)) >> 8);
a++;
b++;
}
}
void pa_sconv_s24_32le_from_s16re(unsigned n, const int16_t *a, uint32_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
uint32_t s = ((uint32_t) ((int32_t) PA_INT16_SWAP(*a) << 16)) >> 8;
*b = UINT32_TO(s);
a++;
b++;
}
}
void pa_sconv_s24_32le_to_float32ne(unsigned n, const uint32_t *a, float *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
int32_t s = (int16_t) ((int32_t) (UINT32_FROM(*a) << 8));
*b = ((float) s) / 0x7FFFFFFF;
a ++;
b ++;
}
}
void pa_sconv_s24_32le_to_float32re(unsigned n, const uint32_t *a, float *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
int32_t s = (int16_t) ((int32_t) (UINT32_FROM(*a) << 8));
float k = ((float) s) / 0x7FFFFFFF;
*b = PA_FLOAT32_SWAP(k);
a ++;
b ++;
}
}
void pa_sconv_s24_32le_from_float32ne(unsigned n, const float *a, uint32_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
int32_t s;
float v = *a;
v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
*b = UINT32_TO(((uint32_t) s) >> 8);
a++;
b++;
}
}
void pa_sconv_s24_32le_from_float32re(unsigned n, const float *a, uint32_t *b) {
pa_assert(a);
pa_assert(b);
for (; n > 0; n--) {
int32_t s;
float v = *a;
v = PA_FLOAT32_SWAP(v);
v = PA_CLAMP_UNLIKELY(v, -1.0f, 1.0f);
s = (int32_t) lrint((double) v * (double) 0x7FFFFFFF);
*b = UINT32_TO(((uint32_t) s) >> 8);
a++;
b++;
}
}

10
src/pulsecore/sconv-s16le.h
View file

@ -39,6 +39,11 @@ void pa_sconv_s24le_from_float32ne(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s24le_to_float32re(unsigned n, const uint8_t *a, float *b);
void pa_sconv_s24le_from_float32re(unsigned n, const float *a, uint8_t *b);
void pa_sconv_s24_32le_to_float32ne(unsigned n, const uint32_t *a, float *b);
void pa_sconv_s24_32le_from_float32ne(unsigned n, const float *a, uint32_t *b);
void pa_sconv_s24_32le_to_float32re(unsigned n, const uint32_t *a, float *b);
void pa_sconv_s24_32le_from_float32re(unsigned n, const float *a, uint32_t *b);
void pa_sconv_s32le_to_s16ne(unsigned n, const int32_t *a, int16_t *b);
void pa_sconv_s32le_from_s16ne(unsigned n, const int16_t *a, int32_t *b);
void pa_sconv_s32le_to_s16re(unsigned n, const int32_t *a, int16_t *b);
@ -49,6 +54,11 @@ void pa_sconv_s24le_from_s16ne(unsigned n, const int16_t *a, uint8_t *b);
void pa_sconv_s24le_to_s16re(unsigned n, const uint8_t *a, int16_t *b);
void pa_sconv_s24le_from_s16re(unsigned n, const int16_t *a, uint8_t *b);
void pa_sconv_s24_32le_to_s16ne(unsigned n, const uint32_t *a, int16_t *b);
void pa_sconv_s24_32le_from_s16ne(unsigned n, const int16_t *a, uint32_t *b);
void pa_sconv_s24_32le_to_s16re(unsigned n, const uint32_t *a, int16_t *b);
void pa_sconv_s24_32le_from_s16re(unsigned n, const int16_t *a, uint32_t *b);
#ifndef WORDS_BIGENDIAN
#define pa_sconv_float32be_to_s16ne pa_sconv_s16le_from_float32re
#define pa_sconv_float32be_from_s16ne pa_sconv_s16le_to_float32re

8
src/pulsecore/sconv.c
View file

@ -200,6 +200,8 @@ pa_convert_func_t pa_get_convert_to_float32ne_function(pa_sample_format_t f) {
[PA_SAMPLE_S32BE] = (pa_convert_func_t) pa_sconv_s32be_to_float32ne,
[PA_SAMPLE_S24LE] = (pa_convert_func_t) pa_sconv_s24le_to_float32ne,
[PA_SAMPLE_S24BE] = (pa_convert_func_t) pa_sconv_s24be_to_float32ne,
[PA_SAMPLE_S24_32LE] = (pa_convert_func_t) pa_sconv_s24_32le_to_float32ne,
[PA_SAMPLE_S24_32BE] = (pa_convert_func_t) pa_sconv_s24_32be_to_float32ne,
[PA_SAMPLE_FLOAT32NE] = (pa_convert_func_t) float32ne_to_float32ne,
[PA_SAMPLE_FLOAT32RE] = (pa_convert_func_t) float32re_to_float32ne,
};
@ -220,6 +222,8 @@ pa_convert_func_t pa_get_convert_from_float32ne_function(pa_sample_format_t f) {
[PA_SAMPLE_S32BE] = (pa_convert_func_t) pa_sconv_s32be_from_float32ne,
[PA_SAMPLE_S24LE] = (pa_convert_func_t) pa_sconv_s24le_from_float32ne,
[PA_SAMPLE_S24BE] = (pa_convert_func_t) pa_sconv_s24be_from_float32ne,
[PA_SAMPLE_S24_32LE] = (pa_convert_func_t) pa_sconv_s24_32le_from_float32ne,
[PA_SAMPLE_S24_32BE] = (pa_convert_func_t) pa_sconv_s24_32be_from_float32ne,
[PA_SAMPLE_FLOAT32NE] = (pa_convert_func_t) float32ne_to_float32ne,
[PA_SAMPLE_FLOAT32RE] = (pa_convert_func_t) float32re_to_float32ne,
[PA_SAMPLE_ALAW] = (pa_convert_func_t) alaw_from_float32ne,
@ -244,6 +248,8 @@ pa_convert_func_t pa_get_convert_to_s16ne_function(pa_sample_format_t f) {
[PA_SAMPLE_S32LE] = (pa_convert_func_t) pa_sconv_s32le_to_s16ne,
[PA_SAMPLE_S24BE] = (pa_convert_func_t) pa_sconv_s24be_to_s16ne,
[PA_SAMPLE_S24LE] = (pa_convert_func_t) pa_sconv_s24le_to_s16ne,
[PA_SAMPLE_S24_32BE] = (pa_convert_func_t) pa_sconv_s24_32be_to_s16ne,
[PA_SAMPLE_S24_32LE] = (pa_convert_func_t) pa_sconv_s24_32le_to_s16ne,
[PA_SAMPLE_ALAW] = (pa_convert_func_t) alaw_to_s16ne,
[PA_SAMPLE_ULAW] = (pa_convert_func_t) ulaw_to_s16ne
};
@ -266,6 +272,8 @@ pa_convert_func_t pa_get_convert_from_s16ne_function(pa_sample_format_t f) {
[PA_SAMPLE_S32LE] = (pa_convert_func_t) pa_sconv_s32le_from_s16ne,
[PA_SAMPLE_S24BE] = (pa_convert_func_t) pa_sconv_s24be_from_s16ne,
[PA_SAMPLE_S24LE] = (pa_convert_func_t) pa_sconv_s24le_from_s16ne,
[PA_SAMPLE_S24_32BE] = (pa_convert_func_t) pa_sconv_s24_32be_from_s16ne,
[PA_SAMPLE_S24_32LE] = (pa_convert_func_t) pa_sconv_s24_32le_from_s16ne,
[PA_SAMPLE_ALAW] = (pa_convert_func_t) alaw_from_s16ne,
[PA_SAMPLE_ULAW] = (pa_convert_func_t) ulaw_from_s16ne,
};