---
This is pretty AC3-centric, but using abosulte scale factors rather than dB
levels (or worse, indexes/codes) should make it compatible with other codecs
should they implement a similar kind of downmix metadata.
Justin suggested making even more codec-agnostic by using flags to indicate
the precense or absence of certain fields, but I'm unsure as to how this could
be implemented. Any ides or examples?
doc/APIchanges | 4 ++++
libavutil/Makefile | 2 ++
libavutil/frame.h | 5 +++++
libavutil/version.h | 2 +-
4 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 6b9efd0..9428b94 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,10 @@ libavutil: 2013-12-xx
API changes, most recent first:
+2014-02-xx - xxxxxxx - lavu 53.3.0 - frame.h
+ Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
+ downmix_info.h API, which identify downmix-related metadata.
+
2014-02-xx - xxxxxxx - lavf 55.11.0 - avformat.h
Add AVFormatContext.max_interleave_delta for controlling amount of buffering
when interleaving.
diff --git a/libavutil/Makefile b/libavutil/Makefile
index e0e32b4..f663f18 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -16,6 +16,7 @@ HEADERS = adler32.h
\
common.h \
cpu.h \
crc.h \
+ downmix_info.h \
error.h \
eval.h \
fifo.h \
@@ -67,6 +68,7 @@ OBJS = adler32.o
\
cpu.o \
crc.o \
des.o \
+ downmix_info.o \
error.o \
eval.o \
fifo.o \
diff --git a/libavutil/frame.h b/libavutil/frame.h
index 5b04291..2076642 100644
--- a/libavutil/frame.h
+++ b/libavutil/frame.h
@@ -64,6 +64,11 @@ enum AVFrameSideDataType {
* The data is the AVMatrixEncoding enum defined in
libavutil/channel_layout.h.
*/
AV_FRAME_DATA_MATRIXENCODING,
+ /**
+ * Metadata relevant to a downmix procedure.
+ * The data is the AVDownmixInfo struct defined in
libavutil/downmix_info.h.
+ */
+ AV_FRAME_DATA_DOWNMIX_INFO,
};
typedef struct AVFrameSideData {
diff --git a/libavutil/version.h b/libavutil/version.h
index e95d77c..5196a67 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -54,7 +54,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 53
-#define LIBAVUTIL_VERSION_MINOR 2
+#define LIBAVUTIL_VERSION_MINOR 3
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
--
1.8.3.4 (Apple Git-47)
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