pcm: support S24_LE format

S24_LE is 24 bit audio in a 32 bit sample size. Also
make the pcm_format_to_bits() function part of the API
since it will be required for tinycap.

1 files changed, 2 insertions, 1 deletions

diff --git a/pcm.c b/pcm.c
index fd0242a..ca3eb3e 100644
--- a/pcm.c
+++ b/pcm.c
@@ -212,10 +212,11 @@ static unsigned int pcm_format_to_alsa(enum pcm_format format)
     };
 }
 
-static unsigned int pcm_format_to_bits(enum pcm_format format)
+unsigned int pcm_format_to_bits(enum pcm_format format)
 {
     switch (format) {
     case PCM_FORMAT_S32_LE:
+    case PCM_FORMAT_S24_LE:
         return 32;
     default:
     case PCM_FORMAT_S16_LE: