[FFmpeg-cvslog] caf muxer: write metadata

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Thu Oct 25 23:33:34 2012 +0000| [7fe6f6e2b10fe278fecea850fda1d8e321330c15] | committer: Paul B Mahol

caf muxer: write metadata

Signed-off-by: Paul B Mahol <onemda at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7fe6f6e2b10fe278fecea850fda1d8e321330c15
---

 Changelog             |    1 +
 libavformat/cafenc.c  |   17 +++++++++++++++++
 libavformat/version.h |    2 +-
 tests/ref/lavf/caf    |    4 ++--
 4 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/Changelog b/Changelog
index c7d2fdb..6f0c2b6 100644
--- a/Changelog
+++ b/Changelog
@@ -17,6 +17,7 @@ version <next>:
 - support for building DLLs using MSVC
 - LVF demuxer
 - ffescape tool
+- metadata (info chunk) support in CAF muxer
 
 
 version 1.0:
diff --git a/libavformat/cafenc.c b/libavformat/cafenc.c
index dc222cd..cc39a83 100644
--- a/libavformat/cafenc.c
+++ b/libavformat/cafenc.c
@@ -25,6 +25,7 @@
 #include "isom.h"
 #include "avio_internal.h"
 #include "libavutil/intfloat.h"
+#include "libavutil/dict.h"
 
 typedef struct {
     int64_t data;
@@ -102,7 +103,9 @@ static int caf_write_header(AVFormatContext *s)
     AVIOContext *pb = s->pb;
     AVCodecContext *enc = s->streams[0]->codec;
     CAFContext *caf = s->priv_data;
+    AVDictionaryEntry *t = NULL;
     unsigned int codec_tag = ff_codec_get_tag(ff_codec_caf_tags, enc->codec_id);
+    int64_t chunk_size = 0;
 
     switch (enc->codec_id) {
     case AV_CODEC_ID_AAC:
@@ -180,6 +183,20 @@ static int caf_write_header(AVFormatContext *s)
         avio_write(pb, enc->extradata, enc->extradata_size);
     }
 
+    if (av_dict_count(s->metadata)) {
+        ffio_wfourcc(pb, "info"); //< Information chunk
+        while ((t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX))) {
+            chunk_size += strlen(t->key) + strlen(t->value) + 2;
+        }
+        avio_wb64(pb, chunk_size + 4);
+        avio_wb32(pb, av_dict_count(s->metadata));
+        t = NULL;
+        while ((t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX))) {
+            avio_put_str(pb, t->key);
+            avio_put_str(pb, t->value);
+        }
+    }
+
     ffio_wfourcc(pb, "data"); //< Audio Data chunk
     caf->data = avio_tell(pb);
     avio_wb64(pb, -1);        //< mChunkSize
diff --git a/libavformat/version.h b/libavformat/version.h
index fe31a7d..bab294c 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 54
-#define LIBAVFORMAT_VERSION_MINOR 34
+#define LIBAVFORMAT_VERSION_MINOR 35
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
diff --git a/tests/ref/lavf/caf b/tests/ref/lavf/caf
index 972b27c..f2ae9c3 100644
--- a/tests/ref/lavf/caf
+++ b/tests/ref/lavf/caf
@@ -1,3 +1,3 @@
-71e1abdfc59613fe05fca2939f02e02d *./tests/data/lavf/lavf.caf
-90204 ./tests/data/lavf/lavf.caf
+6c97bfc8e455d5fb8b3b45806857a953 *./tests/data/lavf/lavf.caf
+90235 ./tests/data/lavf/lavf.caf
 ./tests/data/lavf/lavf.caf CRC=0xf1ae5536