On date Monday 2009-04-06 10:45:29 -0700, debanjana kayal encoded:
> Hi ,
>
> I would like to know if FFmpeg can extract the ID3 tags.If yes could
> anyone pl. tell me where do i found the information (which structure
> and which function). I would also like to know whether FFmpeg can
> be provide me the information on the cover images embeded in the
> files. Best Regards Raja
Starting from:
2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
FFmpeg supports generic metadata tags.
Sample application:
-----8<-----------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <libavformat/avformat.h>
static void dump_tags(const AVFormatContext *s)
{
AVMetadataTag *tag = NULL;
while ((tag=av_metadata_get(s->metadata, "", tag,
AV_METADATA_IGNORE_SUFFIX)))
printf("%s: %s\n", tag->key, tag->value);
}
int main (int argc, char **argv)
{
char *infilename;
AVFormatContext *format_ctx;
if (argc <= 1) {
printf ("No file in input. Please specify an input filename\n");
exit(1);
}
infilename= argv[1];
av_register_all();
if (av_open_input_file(&format_ctx, infilename, NULL, 0, NULL) < 0) {
printf ("Cannot open file %s\n", infilename);
exit(1);
}
if (av_find_stream_info(format_ctx) < 0) {
printf ("Cannot find stream information\n");
exit(1);
}
dump_format(format_ctx, 0, infilename, 0);
dump_tags(format_ctx);
return 0;
}
-----8<-----------------------------------------------------
As for the cover image, this has been discussed but not implemented,
check the ffmpeg-devel ML and patches are welcome.
Regards.
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