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write all available metadata tags into extended_content_header

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Originally committed as revision 16984 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2009-02-04 01:40:52 +00:00
parent 300f24f317
commit 488227c5d7
1 changed files with 20 additions and 1 deletions
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21
libavformat/asf-enc.c
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@ -19,6 +19,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "metadata.h"
#include "riff.h"
#include "asf.h"
@ -274,6 +275,7 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
AVMetadataTag *title, *author, *copyright, *comment;
int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
int has_title;
int metadata_count;
AVCodecContext *enc;
int64_t header_offset, cur_pos, hpos;
int bit_rate;
@ -286,6 +288,7 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
duration = asf->duration + PREROLL_TIME * 10000;
has_title = title || author || copyright || comment;
metadata_count = s->metadata ? s->metadata->count : 0;
bit_rate = 0;
for(n=0;n<s->nb_streams;n++) {
@ -302,7 +305,7 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
put_guid(pb, &asf_header);
put_le64(pb, -1); /* header length, will be patched after */
put_le32(pb, 3 + has_title + s->nb_streams); /* number of chunks in header */
put_le32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
put_byte(pb, 1); /* ??? */
put_byte(pb, 2); /* ??? */
@ -344,6 +347,22 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
if (comment ) put_str16_nolen(pb, comment->value );
end_header(pb, hpos);
}
if (metadata_count) {
AVMetadataTag *tag = NULL;
hpos = put_header(pb, &extended_content_header);
put_le16(pb, metadata_count);
while ((tag = av_metadata_get(s->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX))) {
put_le16(pb, 2*(strlen(tag->key) + 3) + 1);
put_le16(pb, 'W');
put_le16(pb, 'M');
put_le16(pb, '/');
put_str16_nolen(pb, tag->key);
put_le16(pb, 0);
put_le16(pb, 2*strlen(tag->value) + 1);
put_str16_nolen(pb, tag->value);
}
end_header(pb, hpos);
}
/* stream headers */
for(n=0;n<s->nb_streams;n++) {