On Thu, 30 Jul 2020, lance.lmw...@gmail.com wrote:
From: Limin Wang <lance.lmw...@gmail.com>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
libavutil/Makefile | 2 ++
libavutil/mpegts_audio_desc_metadata.c | 33 ++++++++++++++++++++
libavutil/mpegts_audio_desc_metadata.h | 57 ++++++++++++++++++++++++++++++++++
3 files changed, 92 insertions(+)
create mode 100644 libavutil/mpegts_audio_desc_metadata.c
create mode 100644 libavutil/mpegts_audio_desc_metadata.h
diff --git a/libavutil/Makefile b/libavutil/Makefile
index 9b08372..4b4aa68 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -57,6 +57,7 @@ HEADERS = adler32.h
\
md5.h \
mem.h \
motion_vector.h \
+ mpegts_audio_desc_metadata.h \
murmur3.h \
opt.h \
parseutils.h \
@@ -140,6 +141,7 @@ OBJS = adler32.o
\
mastering_display_metadata.o \
md5.o \
mem.o \
+ mpegts_audio_desc_metadata.o \
murmur3.o \
opt.o \
parseutils.o \
diff --git a/libavutil/mpegts_audio_desc_metadata.c
b/libavutil/mpegts_audio_desc_metadata.c
new file mode 100644
index 0000000..14d9100
--- /dev/null
+++ b/libavutil/mpegts_audio_desc_metadata.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2020 Limin Wang <lance.lmw...@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "mpegts_audio_desc_metadata.h"
+#include "mem.h"
+
+AVDescriptor6A *av_desc6a_alloc(size_t *size)
The naming is not OK, as others have already pointed out, because 6A
is not a good name.
AVMPEGTSAC3Descriptor or something similar would be better.
Same goes for the side data type, e.g. AV_PKT_DATA_MPEGTS_AC3_DESC
+{
+ AVDescriptor6A *desc6a = (AVDescriptor6A*)av_mallocz(sizeof(*desc6a));
+
+ if (!desc6a)
+ return NULL;
+ if (size)
+ *size = sizeof(*desc6a);
+ return desc6a;
+
+}
The same kind of alloc function is used for other kinds of side data.
Maybe it would make sense to figure out some #define magic or something to
not duplicate this kind of code, but somehow keep type safety?
E.g. a generic uint8_t *av_alloc_side_data_type(type, *size) and then
using #defines:
#define av_alloc_mpegts_ac3_descriptor(size) \
(AVMPEGTSAC3Descriptor
*)av_alloc_side_data_type(AV_PKT_DATA_MPEGTS_AC3_DESC, size)
Just an idea...
Regards,
Marton
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