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authorMax Kellermann <max@duempel.org>2009-11-10 17:11:34 +0100
committerMax Kellermann <max@duempel.org>2009-12-02 22:29:50 +0100
commitc412d6251e9cd3abe735b7622af4003502e54f72 (patch)
tree7344c13f62e4cc788c830c05d21bb7b5b47f5866 /src/pcm_format.c
parent68c2cfbb4067b2292e1ff1d4e7716ff370903f84 (diff)
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audio_format: changed "bits" to "enum sample_format"
This patch prepares support for floating point samples (and probably other formats). It changes the meaning of the "bits" attribute from a bit count to a symbolic value.
Diffstat (limited to '')
-rw-r--r--src/pcm_format.c45
1 files changed, 27 insertions, 18 deletions
diff --git a/src/pcm_format.c b/src/pcm_format.c
index 8da253db9..b0dad2ba3 100644
--- a/src/pcm_format.c
+++ b/src/pcm_format.c
@@ -50,14 +50,17 @@ pcm_convert_32_to_16(struct pcm_dither *dither,
const int16_t *
pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
- uint8_t bits, const void *src,
+ enum sample_format src_format, const void *src,
size_t src_size, size_t *dest_size_r)
{
unsigned num_samples;
int16_t *dest;
- switch (bits) {
- case 8:
+ 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);
@@ -67,11 +70,11 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
num_samples);
return dest;
- case 16:
+ case SAMPLE_FORMAT_S16:
*dest_size_r = src_size;
return src;
- case 24:
+ 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);
@@ -81,7 +84,7 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
num_samples);
return dest;
- case 32:
+ case SAMPLE_FORMAT_S32:
num_samples = src_size / 4;
*dest_size_r = num_samples * sizeof(*dest);
dest = pcm_buffer_get(buffer, *dest_size_r);
@@ -127,14 +130,17 @@ pcm_convert_32_to_24(int32_t *out, const int16_t *in,
const int32_t *
pcm_convert_to_24(struct pcm_buffer *buffer,
- uint8_t bits, const void *src,
+ enum sample_format src_format, const void *src,
size_t src_size, size_t *dest_size_r)
{
unsigned num_samples;
int32_t *dest;
- switch (bits) {
- case 8:
+ 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);
@@ -143,7 +149,7 @@ pcm_convert_to_24(struct pcm_buffer *buffer,
num_samples);
return dest;
- case 16:
+ case SAMPLE_FORMAT_S16:
num_samples = src_size / 2;
*dest_size_r = num_samples * sizeof(*dest);
dest = pcm_buffer_get(buffer, *dest_size_r);
@@ -152,11 +158,11 @@ pcm_convert_to_24(struct pcm_buffer *buffer,
num_samples);
return dest;
- case 24:
+ case SAMPLE_FORMAT_S24_P32:
*dest_size_r = src_size;
return src;
- case 32:
+ case SAMPLE_FORMAT_S32:
num_samples = src_size / 4;
*dest_size_r = num_samples * sizeof(*dest);
dest = pcm_buffer_get(buffer, *dest_size_r);
@@ -201,14 +207,17 @@ pcm_convert_24_to_32(int32_t *out, const int32_t *in,
const int32_t *
pcm_convert_to_32(struct pcm_buffer *buffer,
- uint8_t bits, const void *src,
+ enum sample_format src_format, const void *src,
size_t src_size, size_t *dest_size_r)
{
unsigned num_samples;
int32_t *dest;
- switch (bits) {
- case 8:
+ 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);
@@ -217,7 +226,7 @@ pcm_convert_to_32(struct pcm_buffer *buffer,
num_samples);
return dest;
- case 16:
+ case SAMPLE_FORMAT_S16:
num_samples = src_size / 2;
*dest_size_r = num_samples * sizeof(*dest);
dest = pcm_buffer_get(buffer, *dest_size_r);
@@ -226,7 +235,7 @@ pcm_convert_to_32(struct pcm_buffer *buffer,
num_samples);
return dest;
- case 24:
+ 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);
@@ -235,7 +244,7 @@ pcm_convert_to_32(struct pcm_buffer *buffer,
num_samples);
return dest;
- case 32:
+ case SAMPLE_FORMAT_S32:
*dest_size_r = src_size;
return src;
}