/* 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 channels;
int ret = -PA_ERR_INVALID;
pa_assert(f);
goto out;
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))
+ if (pa_format_info_get_channels(f, &ss->channels) < 0)
goto out;
- ss->channels = (uint8_t) channels;
-
if (map) {
pa_channel_map_init(map);
return 0;
}
+int pa_format_info_get_channels(pa_format_info *f, uint8_t *channels) {
+ int r;
+ int channels_local;
+
+ pa_assert(f);
+ pa_assert(channels);
+
+ r = pa_format_info_get_prop_int(f, PA_PROP_FORMAT_CHANNELS, &channels_local);
+ if (r < 0)
+ return r;
+
+ if (!pa_channels_valid(channels_local)) {
+ pa_log_debug("Invalid channel count: %i", channels_local);
+ return -PA_ERR_INVALID;
+ }
+
+ *channels = channels_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;
* -PA_ERR_NOENTITY. */
int pa_format_info_get_rate(pa_format_info *f, uint32_t *rate);
+/* Gets the channel count stored in the format info. Returns a negative error
+ * code on failure. If the channels property is not set at all, returns
+ * -PA_ERR_NOENTITY. */
+int pa_format_info_get_channels(pa_format_info *f, uint8_t *channels);
+
/* 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