From c412d6251e9cd3abe735b7622af4003502e54f72 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 10 Nov 2009 17:11:34 +0100 Subject: 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. --- src/pcm_format.c | 45 +++++++++++++++++++++++++++------------------ 1 file changed, 27 insertions(+), 18 deletions(-) (limited to 'src/pcm_format.c') 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; } -- cgit v1.2.3