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core-format: Add pa_format_info_get_sample_format()

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This commit is contained in:
Tanu Kaskinen 2013-11-25 16:15:54 +02:00
parent d2c9b46aca
commit eae16f41a4
3 changed files with 33 additions and 7 deletions
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9
src/pulse/format.c
View file

@ -218,7 +218,7 @@ pa_format_info* pa_format_info_from_sample_spec(pa_sample_spec *ss, pa_channel_m
/* For PCM streams */
int pa_format_info_to_sample_spec(pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map) {
char *sf = NULL, *m = NULL;
char *m = NULL;
int rate, channels;
int ret = -PA_ERR_INVALID;
@ -228,16 +228,13 @@ int pa_format_info_to_sample_spec(pa_format_info *f, pa_sample_spec *ss, pa_chan
if (!pa_format_info_is_pcm(f))
return pa_format_info_to_sample_spec_fake(f, ss, map);
if (pa_format_info_get_prop_string(f, PA_PROP_FORMAT_SAMPLE_FORMAT, &sf))
if (pa_format_info_get_sample_format(f, &ss->format) < 0)
goto out;
if (pa_format_info_get_prop_int(f, PA_PROP_FORMAT_RATE, &rate))
goto out;
if (pa_format_info_get_prop_int(f, PA_PROP_FORMAT_CHANNELS, &channels))
goto out;
if ((ss->format = pa_parse_sample_format(sf)) == PA_SAMPLE_INVALID)
goto out;
ss->rate = (uint32_t) rate;
ss->channels = (uint8_t) channels;
@ -252,8 +249,6 @@ int pa_format_info_to_sample_spec(pa_format_info *f, pa_sample_spec *ss, pa_chan
ret = 0;
out:
if (sf)
pa_xfree(sf);
if (m)
pa_xfree(m);

26
src/pulsecore/core-format.c
View file

@ -24,9 +24,35 @@
#include "core-format.h"
#include <pulse/def.h>
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
int pa_format_info_get_sample_format(pa_format_info *f, pa_sample_format_t *sf) {
int r;
char *sf_str;
pa_sample_format_t sf_local;
pa_assert(f);
pa_assert(sf);
r = pa_format_info_get_prop_string(f, PA_PROP_FORMAT_SAMPLE_FORMAT, &sf_str);
if (r < 0)
return r;
sf_local = pa_parse_sample_format(sf_str);
pa_xfree(sf_str);
if (!pa_sample_format_valid(sf_local)) {
pa_log_debug("Invalid sample format.");
return -PA_ERR_INVALID;
}
*sf = sf_local;
return 0;
}
int pa_format_info_to_sample_spec_fake(pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map) {
int rate;

5
src/pulsecore/core-format.h
View file

@ -22,6 +22,11 @@
#include <pulse/format.h>
/* Gets the sample format stored in the format info. Returns a negative error
* code on failure. If the sample format property is not set at all, returns
* -PA_ERR_NOENTITY. */
int pa_format_info_get_sample_format(pa_format_info *f, pa_sample_format_t *sf);
/* For compressed formats. Converts the format info into a sample spec and a
* channel map that an ALSA device can use as its configuration parameters when
* playing back the compressed data. That is, the returned sample spec doesn't