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core-format: Add pa_format_info_get_rate()

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This also fixes an issue in pa_format_info_to_sample_spec(): it did
no validation for the rate value. Now the validation is taken care of
in pa_format_info_get_rate().
This commit is contained in:
Tanu Kaskinen 2013-11-25 14:34:58 +02:00
parent eae16f41a4
commit 85a3f560d1
3 changed files with 28 additions and 3 deletions
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5
src/pulse/format.c
View file

@ -219,7 +219,7 @@ 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 *m = NULL;
int rate, channels;
int channels;
int ret = -PA_ERR_INVALID;
pa_assert(f);
@ -230,12 +230,11 @@ int pa_format_info_to_sample_spec(pa_format_info *f, pa_sample_spec *ss, pa_chan
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))
if (pa_format_info_get_rate(f, &ss->rate) < 0)
goto out;
if (pa_format_info_get_prop_int(f, PA_PROP_FORMAT_CHANNELS, &channels))
goto out;
ss->rate = (uint32_t) rate;
ss->channels = (uint8_t) channels;
if (map) {

21
src/pulsecore/core-format.c
View file

@ -53,6 +53,27 @@ int pa_format_info_get_sample_format(pa_format_info *f, pa_sample_format_t *sf)
return 0;
}
int pa_format_info_get_rate(pa_format_info *f, uint32_t *rate) {
int r;
int rate_local;
pa_assert(f);
pa_assert(rate);
r = pa_format_info_get_prop_int(f, PA_PROP_FORMAT_RATE, &rate_local);
if (r < 0)
return r;
if (!pa_sample_rate_valid(rate_local)) {
pa_log_debug("Invalid sample rate: %i", rate_local);
return -PA_ERR_INVALID;
}
*rate = rate_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

@ -27,6 +27,11 @@
* -PA_ERR_NOENTITY. */
int pa_format_info_get_sample_format(pa_format_info *f, pa_sample_format_t *sf);
/* Gets the sample rate stored in the format info. Returns a negative error
* code on failure. If the sample rate property is not set at all, returns
* -PA_ERR_NOENTITY. */
int pa_format_info_get_rate(pa_format_info *f, uint32_t *rate);
/* 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