Changeset d30292e in mainline

Timestamp:

2012-07-15T00:41:24Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

afa7c17

Parents:

2d9197e

Message:

Add another audio format helper function.

File:

• uspace/lib/c/include/pcm_sample_format.h (modified) (2 diffs)

uspace/lib/c/include/pcm_sample_format.h

@@ -37 +37 @@
 #define PCM_SAMPLE_FORMAT_H_
 
+#include <bool.h>
+
 typedef enum {
         PCM_SAMPLE_UINT8,
@@ -57 +59 @@
         PCM_SAMPLE_SINT32_BE,
         PCM_SAMPLE_FLOAT32,
+        PCM_SAMPLE_FORMAT_LAST = PCM_SAMPLE_FLOAT32,
 } pcm_sample_format_t;
+
+static inline bool pcm_sample_format_is_signed(pcm_sample_format_t format)
+{
+        switch(format) {
+        case PCM_SAMPLE_SINT8:
+        case PCM_SAMPLE_SINT16_LE:
+        case PCM_SAMPLE_SINT16_BE:
+        case PCM_SAMPLE_SINT24_LE:
+        case PCM_SAMPLE_SINT24_BE:
+        case PCM_SAMPLE_SINT24_32_LE:
+        case PCM_SAMPLE_SINT24_32_BE:
+        case PCM_SAMPLE_SINT32_LE:
+        case PCM_SAMPLE_SINT32_BE:
+                return true;
+        case PCM_SAMPLE_UINT8:
+        case PCM_SAMPLE_UINT16_LE:
+        case PCM_SAMPLE_UINT16_BE:
+        case PCM_SAMPLE_UINT24_LE:
+        case PCM_SAMPLE_UINT24_BE:
+        case PCM_SAMPLE_UINT24_32_LE:
+        case PCM_SAMPLE_UINT24_32_BE:
+        case PCM_SAMPLE_UINT32_LE:
+        case PCM_SAMPLE_UINT32_BE:
+        case PCM_SAMPLE_FLOAT32:
+        default:
+                return false;
+        }
+}
 
 static inline size_t pcm_sample_format_size(pcm_sample_format_t format)