Changeset 727 for pjproject/trunk/pjmedia/include/pjmedia/wave.h

Timestamp:

Sep 18, 2006 11:33:44 PM (18 years ago)

Author:

bennylp

Message:

Support for reading non-canonical WAV file in WAV file player port.

File:

• pjproject/trunk/pjmedia/include/pjmedia/wave.h (modified) (1 diff)

pjproject/trunk/pjmedia/include/pjmedia/wave.h

@@ -97 +97 @@
 typedef struct pjmedia_wave_hdr pjmedia_wave_hdr;
 
+/**
+ * This structure describes generic RIFF subchunk header.
+ */
+typedef struct pjmedia_wave_subchunk
+{
+    pj_uint32_t     id;                 /**< Subchunk ASCII tag.            */
+    pj_uint32_t     len;                /**< Length following this field    */
+} pjmedia_wave_subchunk;
+
+
+/**
+ * Normalize subchunk header from little endian (the representation of
+ * RIFF file) into host's endian.
+ */
+#if defined(PJ_IS_BIG_ENDIAN) && PJ_IS_BIG_ENDIAN!=0
+#   define PJMEDIA_WAVE_NORMALIZE_SUBCHUNK(ch)  \
+            do { \
+                (ch)->id = pj_swap32((ch)->id); \
+                (ch)->len = pj_swap32((ch)->len); \
+            } while (0)
+#else
+#   define PJMEDIA_WAVE_NORMALIZE_SUBCHUNK(ch)
+#endif
+
 
 /**