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, 6 insertions, 0 deletions

diff --git a/include/tinyalsa/pcm.h b/include/tinyalsa/pcm.h
index a6c95ce..41d3fb4 100644
--- a/include/tinyalsa/pcm.h
+++ b/include/tinyalsa/pcm.h
@@ -240,6 +240,12 @@ int pcm_close(struct pcm *pcm);
 	
 int pcm_is_ready(const struct pcm *pcm);
 
+unsigned int pcm_get_channels(const struct pcm *pcm);
+
+unsigned int pcm_get_rate(const struct pcm *pcm);
+
+enum pcm_format pcm_get_format(const struct pcm *pcm);
+
 int pcm_get_file_descriptor(const struct pcm *pcm);
 
 const char *pcm_get_error(const struct pcm *pcm);