*/
#define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX 0x00000001
+/**
+ * Tell ff_put_wav_header() to write an empty channel mask.
+ */
+#define FF_PUT_WAV_HEADER_SKIP_CHANNELMASK 0x00000002
+
/**
* Write WAVEFORMAT header structure.
*
#define FF_MEDIASUBTYPE_BASE_GUID \
0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
+#define FF_AMBISONIC_BASE_GUID \
+ 0x21, 0x07, 0xD3, 0x11, 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00
static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
{