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-rw-r--r--src/pcm_format.c261
1 files changed, 166 insertions, 95 deletions
diff --git a/src/pcm_format.c b/src/pcm_format.c
index fd8db99ad..d22dfb896 100644
--- a/src/pcm_format.c
+++ b/src/pcm_format.c
@@ -46,12 +46,69 @@ pcm_convert_32_to_16(struct pcm_dither *dither,
pcm_dither_32_to_16(dither, out, in, in_end);
}
+static int16_t *
+pcm_allocate_8_to_16(struct pcm_buffer *buffer,
+ const int8_t *src, size_t src_size, size_t *dest_size_r)
+{
+ int16_t *dest;
+ *dest_size_r = src_size / sizeof(*src) * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_8_to_16(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
static int32_t *
-pcm_convert_24_to_24p32(struct pcm_buffer *buffer, const uint8_t *src,
- unsigned num_samples)
+pcm_allocate_24_to_24p32(struct pcm_buffer *buffer, const uint8_t *src,
+ size_t src_size, size_t *dest_size_r)
+{
+ int32_t *dest;
+ *dest_size_r = src_size / 3 * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_unpack_24(dest, src, pcm_end_pointer(src, src_size), false);
+ return dest;
+}
+
+static int16_t *
+pcm_allocate_24_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
+ const uint8_t *src, size_t src_size, size_t *dest_size_r)
{
- int32_t *dest = pcm_buffer_get(buffer, num_samples * 4);
- pcm_unpack_24(dest, src, src + num_samples * 3, false);
+ /* convert to S24_P32 first */
+ size_t tmp_size;
+ int32_t *tmp = pcm_allocate_24_to_24p32(buffer, src, src_size,
+ &tmp_size);
+
+ /* convert to 16 bit in-place */
+ int16_t *dest = (int16_t *)tmp;
+ *dest_size_r = tmp_size / sizeof(*tmp) * sizeof(*dest);
+ pcm_convert_24_to_16(dither, dest, tmp, pcm_end_pointer(tmp, tmp_size));
+ return dest;
+}
+
+static int16_t *
+pcm_allocate_24p32_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
+ const int32_t *src, size_t src_size,
+ size_t *dest_size_r)
+{
+ int16_t *dest;
+ *dest_size_r = src_size / 2;
+ assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest));
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_24_to_16(dither, dest, src,
+ pcm_end_pointer(src, src_size));
+ return dest;
+}
+
+static int16_t *
+pcm_allocate_32_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
+ const int32_t *src, size_t src_size,
+ size_t *dest_size_r)
+{
+ int16_t *dest;
+ *dest_size_r = src_size / 2;
+ assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest));
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_32_to_16(dither, dest, src,
+ pcm_end_pointer(src, src_size));
return dest;
}
@@ -62,61 +119,29 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
{
assert(src_size % sample_format_size(src_format) == 0);
- const void *src_end = pcm_end_pointer(src, src_size);
- unsigned num_samples;
- int16_t *dest;
- int32_t *dest32;
-
switch (src_format) {
case SAMPLE_FORMAT_UNDEFINED:
break;
case SAMPLE_FORMAT_S8:
- num_samples = src_size;
- *dest_size_r = src_size * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_8_to_16(dest,
- (const int8_t *)src,
- src_end);
- return dest;
+ return pcm_allocate_8_to_16(buffer,
+ src, src_size, dest_size_r);
case SAMPLE_FORMAT_S16:
*dest_size_r = src_size;
return src;
case SAMPLE_FORMAT_S24:
- /* convert to S24_P32 first */
- num_samples = src_size / 3;
-
- dest32 = pcm_convert_24_to_24p32(buffer, src, num_samples);
- dest = (int16_t *)dest32;
-
- /* convert to 16 bit in-place */
- *dest_size_r = num_samples * sizeof(*dest);
- pcm_convert_24_to_16(dither, dest, dest32,
- dest32 + num_samples);
- return dest;
+ return pcm_allocate_24_to_16(buffer, dither,
+ src, src_size, dest_size_r);
case SAMPLE_FORMAT_S24_P32:
- num_samples = src_size / 4;
- *dest_size_r = num_samples * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_24_to_16(dither, dest,
- (const int32_t *)src,
- (const int32_t *)src_end);
- return dest;
+ return pcm_allocate_24p32_to_16(buffer, dither, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S32:
- num_samples = src_size / 4;
- *dest_size_r = num_samples * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_32_to_16(dither, dest,
- (const int32_t *)src,
- (const int32_t *)src_end);
- return dest;
+ return pcm_allocate_32_to_16(buffer, dither, src, src_size,
+ dest_size_r);
}
return NULL;
@@ -145,6 +170,39 @@ pcm_convert_32_to_24(int32_t *restrict out,
*out++ = *in++ >> 8;
}
+static int32_t *
+pcm_allocate_8_to_24(struct pcm_buffer *buffer,
+ const int8_t *src, size_t src_size, size_t *dest_size_r)
+{
+ int32_t *dest;
+ *dest_size_r = src_size / sizeof(*src) * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_8_to_24(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
+static int32_t *
+pcm_allocate_16_to_24(struct pcm_buffer *buffer,
+ const int16_t *src, size_t src_size, size_t *dest_size_r)
+{
+ int32_t *dest;
+ *dest_size_r = src_size * 2;
+ assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest));
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_16_to_24(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
+static int32_t *
+pcm_allocate_32_to_24(struct pcm_buffer *buffer,
+ const int32_t *src, size_t src_size, size_t *dest_size_r)
+{
+ *dest_size_r = src_size;
+ int32_t *dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_32_to_24(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
const int32_t *
pcm_convert_to_24(struct pcm_buffer *buffer,
enum sample_format src_format, const void *src,
@@ -152,44 +210,29 @@ pcm_convert_to_24(struct pcm_buffer *buffer,
{
assert(src_size % sample_format_size(src_format) == 0);
- const void *src_end = pcm_end_pointer(src, src_size);
- unsigned num_samples;
- int32_t *dest;
-
switch (src_format) {
case SAMPLE_FORMAT_UNDEFINED:
break;
case SAMPLE_FORMAT_S8:
- *dest_size_r = src_size * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_8_to_24(dest, src, src_end);
- return dest;
+ return pcm_allocate_8_to_24(buffer,
+ src, src_size, dest_size_r);
case SAMPLE_FORMAT_S16:
- *dest_size_r = src_size / 2 * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_16_to_24(dest, src, src_end);
- return dest;
+ return pcm_allocate_16_to_24(buffer,
+ src, src_size, dest_size_r);
case SAMPLE_FORMAT_S24:
- num_samples = src_size / 3;
- *dest_size_r = num_samples * sizeof(*dest);
-
- return pcm_convert_24_to_24p32(buffer, src, num_samples);
+ return pcm_allocate_24_to_24p32(buffer, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S24_P32:
*dest_size_r = src_size;
return src;
case SAMPLE_FORMAT_S32:
- *dest_size_r = src_size / 4 * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_32_to_24(dest, src, src_end);
- return dest;
+ return pcm_allocate_32_to_24(buffer, src, src_size,
+ dest_size_r);
}
return NULL;
@@ -218,6 +261,54 @@ pcm_convert_24_to_32(int32_t *restrict out,
*out++ = *in++ << 8;
}
+static int32_t *
+pcm_allocate_8_to_32(struct pcm_buffer *buffer,
+ const int8_t *src, size_t src_size, size_t *dest_size_r)
+{
+ int32_t *dest;
+ *dest_size_r = src_size / sizeof(*src) * sizeof(*dest);
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_8_to_32(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
+static int32_t *
+pcm_allocate_16_to_32(struct pcm_buffer *buffer,
+ const int16_t *src, size_t src_size, size_t *dest_size_r)
+{
+ int32_t *dest;
+ *dest_size_r = src_size * 2;
+ assert(*dest_size_r == src_size / sizeof(*src) * sizeof(*dest));
+ dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_16_to_32(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
+static int32_t *
+pcm_allocate_24_to_32(struct pcm_buffer *buffer,
+ const uint8_t *src,
+ size_t src_size, size_t *dest_size_r)
+{
+ /* convert to S24_P32 first */
+ int32_t *dest = pcm_allocate_24_to_24p32(buffer, src, src_size,
+ dest_size_r);
+
+ /* convert to 32 bit in-place */
+ pcm_convert_24_to_32(dest, dest, pcm_end_pointer(dest, *dest_size_r));
+ return dest;
+}
+
+static int32_t *
+pcm_allocate_24p32_to_32(struct pcm_buffer *buffer,
+ const int32_t *src, size_t src_size,
+ size_t *dest_size_r)
+{
+ *dest_size_r = src_size;
+ int32_t *dest = pcm_buffer_get(buffer, *dest_size_r);
+ pcm_convert_24_to_32(dest, src, pcm_end_pointer(src, src_size));
+ return dest;
+}
+
const int32_t *
pcm_convert_to_32(struct pcm_buffer *buffer,
enum sample_format src_format, const void *src,
@@ -225,45 +316,25 @@ pcm_convert_to_32(struct pcm_buffer *buffer,
{
assert(src_size % sample_format_size(src_format) == 0);
- const void *src_end = pcm_end_pointer(src, src_size);
- unsigned num_samples;
- int32_t *dest;
-
switch (src_format) {
case SAMPLE_FORMAT_UNDEFINED:
break;
case SAMPLE_FORMAT_S8:
- *dest_size_r = src_size * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_8_to_32(dest, src, src_end);
- return dest;
+ return pcm_allocate_8_to_32(buffer, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S16:
- *dest_size_r = src_size / 2 * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_16_to_32(dest, src, src_end);
- return dest;
+ return pcm_allocate_16_to_32(buffer, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S24:
- /* convert to S24_P32 first */
- num_samples = src_size / 3;
-
- dest = pcm_convert_24_to_24p32(buffer, src, num_samples);
-
- /* convert to 32 bit in-place */
- *dest_size_r = num_samples * sizeof(*dest);
- pcm_convert_24_to_32(dest, dest, dest + num_samples);
- return dest;
+ return pcm_allocate_24_to_32(buffer, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S24_P32:
- *dest_size_r = src_size / 4 * sizeof(*dest);
- dest = pcm_buffer_get(buffer, *dest_size_r);
-
- pcm_convert_24_to_32(dest, src, src_end);
- return dest;
+ return pcm_allocate_24p32_to_32(buffer, src, src_size,
+ dest_size_r);
case SAMPLE_FORMAT_S32:
*dest_size_r = src_size;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 09:33:36 +0000