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add pa_ prefix to all identifiers.

Browse source 
fix downsampling/resampling
add support for U8 samples


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@49 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-07-03 23:35:12 +00:00
parent a8a5ab1c79
commit e61c2dddb7
91 changed files with 1795 additions and 1643 deletions
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24
src/resampler.c
View file

@ -6,7 +6,7 @@
#include "resampler.h"
#include "sconv.h"
struct resampler {
struct pa_resampler {
struct pa_sample_spec i_ss, o_ss;
float* i_buf, *o_buf;
unsigned i_alloc, o_alloc;
@ -14,13 +14,13 @@ struct resampler {
int channels;
convert_to_float32_func_t to_float32_func;
convert_from_float32_func_t from_float32_func;
pa_convert_to_float32_func_t to_float32_func;
pa_convert_from_float32_func_t from_float32_func;
SRC_STATE *src_state;
};
struct resampler* resampler_new(const struct pa_sample_spec *a, const struct pa_sample_spec *b) {
struct resampler *r;
struct pa_resampler* pa_resampler_new(const struct pa_sample_spec *a, const struct pa_sample_spec *b) {
struct pa_resampler *r;
int err;
assert(a && b && pa_sample_spec_valid(a) && pa_sample_spec_valid(b));
@ -30,7 +30,7 @@ struct resampler* resampler_new(const struct pa_sample_spec *a, const struct pa_
if (a->format == PA_SAMPLE_ALAW || a->format == PA_SAMPLE_ULAW || b->format == PA_SAMPLE_ALAW || b->format == PA_SAMPLE_ULAW)
goto fail;
r = malloc(sizeof(struct resampler));
r = malloc(sizeof(struct pa_resampler));
assert(r);
r->channels = a->channels;
@ -53,8 +53,8 @@ struct resampler* resampler_new(const struct pa_sample_spec *a, const struct pa_
r->i_sz = pa_sample_size(a);
r->o_sz = pa_sample_size(b);
r->to_float32_func = get_convert_to_float32_function(a->format);
r->from_float32_func = get_convert_from_float32_function(b->format);
r->to_float32_func = pa_get_convert_to_float32_function(a->format);
r->from_float32_func = pa_get_convert_from_float32_function(b->format);
assert(r->to_float32_func && r->from_float32_func);
@ -67,7 +67,7 @@ fail:
return NULL;
}
void resampler_free(struct resampler *r) {
void pa_resampler_free(struct pa_resampler *r) {
assert(r);
if (r->src_state)
src_delete(r->src_state);
@ -76,14 +76,14 @@ void resampler_free(struct resampler *r) {
free(r);
}
size_t resampler_request(struct resampler *r, size_t out_length) {
size_t pa_resampler_request(struct pa_resampler *r, size_t out_length) {
assert(r && (out_length % r->o_sz) == 0);
return (((out_length / r->o_sz)*r->i_ss.rate)/r->o_ss.rate) * r->i_sz;
}
void resampler_run(struct resampler *r, const struct memchunk *in, struct memchunk *out) {
void pa_resampler_run(struct pa_resampler *r, const struct pa_memchunk *in, struct pa_memchunk *out) {
unsigned i_nchannels, o_nchannels, ins, ons, eff_ins, eff_ons;
float *cbuf;
assert(r && in && out && in->length && in->memblock && (in->length % r->i_sz) == 0);
@ -109,7 +109,7 @@ void resampler_run(struct resampler *r, const struct memchunk *in, struct memchu
eff_ons = ons;
}
out->memblock = memblock_new(out->length = (ons*r->o_sz));
out->memblock = pa_memblock_new(out->length = (ons*r->o_sz));
out->index = 0;
assert(out->memblock);