path: root/common/tags.h
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* demux: support for some kinds of timed metadatawm42018-04-181-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes ICY title changes show up at approximately the correct time, even if the demuxer buffer is huge. (It'll still be wrong if the stream byte cache contains a meaningful amount of data.) It should have the same effect for mid-stream metadata changes in e.g. OGG (untested). This is still somewhat fishy, but in parts due to ICY being fishy, and FFmpeg's metadata change API being somewhat fishy. For example, what happens if you seek? With FFmpeg AVFMT_EVENT_FLAG_METADATA_UPDATED and AVSTREAM_EVENT_FLAG_METADATA_UPDATED we hope that FFmpeg will correctly restore the correct metadata when the first packet is returned. If you seke with ICY, we're out of luck, and some audio will be associated with the wrong tag until we get a new title through ICY metadata update at an essentially random point (it's mostly inherent to ICY). Then the tags will switch back and forth, and this behavior will stick with the data stored in the demuxer cache. Fortunately, this can happen only if the HTTP stream is actually seekable, which it usually is not for ICY things. Seeking doesn't even make sense with ICY, since you can't know the exact metadata location. Basically ICY metsdata sucks. Some complexity is due to a microoptimization: I didn't want additional atomic accesses for each packet if no timed metadata is used. (It probably doesn't matter at all.)
* tags: add mp_tags_removeKevin Mitchell2017-12-261-0/+2
| | | | | This removes all tags matching the provided key. This will be used for removing metadata tags during encoding.
* player: filter tags, add --display-tags optionwm42014-12-291-0/+1
| | | | | | | | This attempts to increase user-friendliness by excluding useless tags. It should be especially helpful with mp4 files, because the FFmpeg mp4 demuxer adds tons of completely useless information to the metadata. Fixes #1403.
* Move compat/ and bstr/ directory contents somewhere elsewm42014-08-291-1/+1
| | | | | | | | | bstr.c doesn't really deserve its own directory, and compat had just a few files, most of which may as well be in osdep. There isn't really any justification for these extra directories, so get rid of them. The compat/libav.h was empty - just delete it. We changed our approach to API compatibility, and will likely not need it anymore.
* tags: add copy functionwm42014-07-161-0/+1
* demux, stream: change metadata notificationwm42014-07-051-0/+1
| | | | | | | | | | | | (Again.) This time, we simply make it event-based, as it should be. This is done for both demuxer metadata and stream metadata. For some ogg-over-icy streams, 2 updates are reported on stream start. This is because libavformat reports an update right on start, while including the same info in the "static" metadata. I don't know if that's a bug or a feature.
* mp_tags: move generic mp_tags stuff into its own .c/.h files in common/Kevin Mitchell2014-04-131-0/+21
rename add_metadata to the more genera/descriptive mp_tags_copy_items_from_av_dictionary Signed-off-by: wm4 <wm4@nowhere>