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-rw-r--r--src/pcm_convert.c148
1 files changed, 106 insertions, 42 deletions
diff --git a/src/pcm_convert.c b/src/pcm_convert.c
index ebb4adff5..8d529dd5f 100644
--- a/src/pcm_convert.c
+++ b/src/pcm_convert.c
@@ -17,9 +17,11 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "config.h"
#include "pcm_convert.h"
#include "pcm_channels.h"
#include "pcm_format.h"
+#include "pcm_byteswap.h"
#include "audio_format.h"
#include <assert.h>
@@ -39,6 +41,7 @@ void pcm_convert_init(struct pcm_convert_state *state)
pcm_buffer_init(&state->format_buffer);
pcm_buffer_init(&state->channels_buffer);
+ pcm_buffer_init(&state->byteswap_buffer);
}
void pcm_convert_deinit(struct pcm_convert_state *state)
@@ -47,41 +50,60 @@ void pcm_convert_deinit(struct pcm_convert_state *state)
pcm_buffer_deinit(&state->format_buffer);
pcm_buffer_deinit(&state->channels_buffer);
+ pcm_buffer_deinit(&state->byteswap_buffer);
}
static const int16_t *
pcm_convert_16(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src_buffer, size_t src_size,
- const struct audio_format *dest_format,
- size_t *dest_size_r)
+ const struct audio_format *dest_format, size_t *dest_size_r,
+ GError **error_r)
{
const int16_t *buf;
size_t len;
- assert(dest_format->bits == 16);
+ assert(dest_format->format == SAMPLE_FORMAT_S16);
buf = pcm_convert_to_16(&state->format_buffer, &state->dither,
- src_format->bits, src_buffer, src_size,
+ src_format->format, src_buffer, src_size,
&len);
- if (!buf)
- g_error("pcm_convert_to_16() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %s to 16 bit is not implemented",
+ sample_format_to_string(src_format->format));
+ return NULL;
+ }
if (src_format->channels != dest_format->channels) {
buf = pcm_convert_channels_16(&state->channels_buffer,
dest_format->channels,
src_format->channels,
buf, len, &len);
- if (!buf)
- g_error("pcm_convert_channels_16() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %u to %u channels "
+ "is not implemented",
+ src_format->channels,
+ dest_format->channels);
+ return NULL;
+ }
}
- if (src_format->sample_rate != dest_format->sample_rate)
+ if (src_format->sample_rate != dest_format->sample_rate) {
buf = pcm_resample_16(&state->resample,
dest_format->channels,
src_format->sample_rate, buf, len,
- dest_format->sample_rate,
- &len);
+ dest_format->sample_rate, &len,
+ error_r);
+ if (buf == NULL)
+ return NULL;
+ }
+
+ if (dest_format->reverse_endian) {
+ buf = pcm_byteswap_16(&state->byteswap_buffer, buf, len);
+ assert(buf != NULL);
+ }
*dest_size_r = len;
return buf;
@@ -91,34 +113,52 @@ static const int32_t *
pcm_convert_24(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src_buffer, size_t src_size,
- const struct audio_format *dest_format,
- size_t *dest_size_r)
+ const struct audio_format *dest_format, size_t *dest_size_r,
+ GError **error_r)
{
const int32_t *buf;
size_t len;
- assert(dest_format->bits == 24);
+ assert(dest_format->format == SAMPLE_FORMAT_S24_P32);
- buf = pcm_convert_to_24(&state->format_buffer, src_format->bits,
+ buf = pcm_convert_to_24(&state->format_buffer, src_format->format,
src_buffer, src_size, &len);
- if (!buf)
- g_error("pcm_convert_to_24() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %s to 24 bit is not implemented",
+ sample_format_to_string(src_format->format));
+ return NULL;
+ }
if (src_format->channels != dest_format->channels) {
buf = pcm_convert_channels_24(&state->channels_buffer,
dest_format->channels,
src_format->channels,
buf, len, &len);
- if (!buf)
- g_error("pcm_convert_channels_24() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %u to %u channels "
+ "is not implemented",
+ src_format->channels,
+ dest_format->channels);
+ return NULL;
+ }
}
- if (src_format->sample_rate != dest_format->sample_rate)
+ if (src_format->sample_rate != dest_format->sample_rate) {
buf = pcm_resample_24(&state->resample,
dest_format->channels,
src_format->sample_rate, buf, len,
- dest_format->sample_rate,
- &len);
+ dest_format->sample_rate, &len,
+ error_r);
+ if (buf == NULL)
+ return NULL;
+ }
+
+ if (dest_format->reverse_endian) {
+ buf = pcm_byteswap_32(&state->byteswap_buffer, buf, len);
+ assert(buf != NULL);
+ }
*dest_size_r = len;
return buf;
@@ -128,34 +168,52 @@ static const int32_t *
pcm_convert_32(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src_buffer, size_t src_size,
- const struct audio_format *dest_format,
- size_t *dest_size_r)
+ const struct audio_format *dest_format, size_t *dest_size_r,
+ GError **error_r)
{
const int32_t *buf;
size_t len;
- assert(dest_format->bits == 32);
+ assert(dest_format->format == SAMPLE_FORMAT_S32);
- buf = pcm_convert_to_32(&state->format_buffer, src_format->bits,
+ buf = pcm_convert_to_32(&state->format_buffer, src_format->format,
src_buffer, src_size, &len);
- if (!buf)
- g_error("pcm_convert_to_32() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %s to 24 bit is not implemented",
+ sample_format_to_string(src_format->format));
+ return NULL;
+ }
if (src_format->channels != dest_format->channels) {
buf = pcm_convert_channels_32(&state->channels_buffer,
dest_format->channels,
src_format->channels,
buf, len, &len);
- if (!buf)
- g_error("pcm_convert_channels_32() failed");
+ if (buf == NULL) {
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "Conversion from %u to %u channels "
+ "is not implemented",
+ src_format->channels,
+ dest_format->channels);
+ return NULL;
+ }
}
- if (src_format->sample_rate != dest_format->sample_rate)
+ if (src_format->sample_rate != dest_format->sample_rate) {
buf = pcm_resample_32(&state->resample,
dest_format->channels,
src_format->sample_rate, buf, len,
- dest_format->sample_rate,
- &len);
+ dest_format->sample_rate, &len,
+ error_r);
+ if (buf == NULL)
+ return buf;
+ }
+
+ if (dest_format->reverse_endian) {
+ buf = pcm_byteswap_32(&state->byteswap_buffer, buf, len);
+ assert(buf != NULL);
+ }
*dest_size_r = len;
return buf;
@@ -166,26 +224,32 @@ pcm_convert(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src, size_t src_size,
const struct audio_format *dest_format,
- size_t *dest_size_r)
+ size_t *dest_size_r,
+ GError **error_r)
{
- switch (dest_format->bits) {
- case 16:
+ switch (dest_format->format) {
+ case SAMPLE_FORMAT_S16:
return pcm_convert_16(state,
src_format, src, src_size,
- dest_format, dest_size_r);
+ dest_format, dest_size_r,
+ error_r);
- case 24:
+ case SAMPLE_FORMAT_S24_P32:
return pcm_convert_24(state,
src_format, src, src_size,
- dest_format, dest_size_r);
+ dest_format, dest_size_r,
+ error_r);
- case 32:
+ case SAMPLE_FORMAT_S32:
return pcm_convert_32(state,
src_format, src, src_size,
- dest_format, dest_size_r);
+ dest_format, dest_size_r,
+ error_r);
default:
- g_error("cannot convert to %u bit\n", dest_format->bits);
+ g_set_error(error_r, pcm_convert_quark(), 0,
+ "PCM conversion to %s is not implemented",
+ sample_format_to_string(dest_format->format));
return NULL;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 02:04:40 +0000