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authorMax Kellermann <max@duempel.org>2009-02-21 18:14:20 +0100
committerMax Kellermann <max@duempel.org>2009-02-21 18:14:20 +0100
commitf0554d9a75abab093fe5169bdab6b6b75ae4f97a (patch)
tree041e132660e2c6ea0865306d19d7a45314e0a7a8 /src/pcm_channels.h
parentcae7c160a3084acf9e68845b16bae34772d18e4e (diff)
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pcm: added API documentation
Diffstat (limited to 'src/pcm_channels.h')
-rw-r--r--src/pcm_channels.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/pcm_channels.h b/src/pcm_channels.h
index b4699ed8f..25c13d839 100644
--- a/src/pcm_channels.h
+++ b/src/pcm_channels.h
@@ -24,12 +24,35 @@
struct pcm_buffer;
+/**
+ * Changes the number of channels in 16 bit PCM data.
+ *
+ * @param buffer the destination pcm_buffer object
+ * @param dest_channels the number of channels requested
+ * @param src_channels the number of channels in the source buffer
+ * @param src the source PCM buffer
+ * @param src_size the number of bytes in #src
+ * @param dest_size_r returns the number of bytes of the destination buffer
+ * @return the destination buffer
+ */
const int16_t *
pcm_convert_channels_16(struct pcm_buffer *buffer,
int8_t dest_channels,
int8_t src_channels, const int16_t *src,
size_t src_size, size_t *dest_size_r);
+/**
+ * Changes the number of channels in 24 bit PCM data (aligned at 32
+ * bit boundaries).
+ *
+ * @param buffer the destination pcm_buffer object
+ * @param dest_channels the number of channels requested
+ * @param src_channels the number of channels in the source buffer
+ * @param src the source PCM buffer
+ * @param src_size the number of bytes in #src
+ * @param dest_size_r returns the number of bytes of the destination buffer
+ * @return the destination buffer
+ */
const int32_t *
pcm_convert_channels_24(struct pcm_buffer *buffer,
int8_t dest_channels,