Added format related getters for PCM

Added functions:
 - pcm_get_channels
 - pcm_get_rate
 - pcm_get_format

These were added since they're required for iterating samples and frames.

1 files changed, 31 insertions, 0 deletions

diff --git a/src/pcm.c b/src/pcm.c
index 540fd72..41f072c 100644
--- a/src/pcm.c
+++ b/src/pcm.c
@@ -204,6 +204,37 @@ unsigned int pcm_get_buffer_size(const struct pcm *pcm)
     return pcm->buffer_size;
 }
 
+/** Gets the channel count of the PCM.
+ * @param pcm A PCM handle.
+ * @return The channel count of the PCM.
+ * @ingroup libtinyalsa-pcm
+ */
+unsigned int pcm_get_channels(const struct pcm *pcm)
+{
+	return pcm->config.channels;
+}
+
+/** Gets the rate of the PCM.
+ * The rate is given in frames per second.
+ * @param pcm A PCM handle.
+ * @return The rate of the PCM.
+ * @ingroup libtinyalsa-pcm
+ */
+unsigned int pcm_get_rate(const struct pcm *pcm)
+{
+	return pcm->config.rate;
+}
+
+/** Gets the format of the PCM.
+ * @param pcm A PCM handle.
+ * @return The format of the PCM.
+ * @ingroup libtinyalsa-pcm
+ */
+enum pcm_format pcm_get_format(const struct pcm *pcm)
+{
+	return pcm->config.format;
+}
+
 /** Gets the file descriptor of the PCM.
  * Useful for extending functionality of the PCM when needed.
  * @param pcm A PCM handle.