decoder_api: submit the song tag to the music pipe

When a new song starts playing, send its tag (song->tag) to the music
pipe.  This allows output plugins to render tags for all songs, not
only those with embedded tags understood by the decoder plugin.
This commit is contained in:
Max Kellermann 2009-04-13 19:25:53 +02:00
parent 99a88988d5
commit 200be26371
3 changed files with 23 additions and 5 deletions

View File

@ -189,12 +189,18 @@ update_stream_tag(struct decoder *decoder, struct input_stream *is)
{
struct tag *tag;
if (is == NULL)
return false;
tag = is != NULL
? input_stream_tag(is)
: NULL;
if (tag == NULL) {
tag = decoder->song_tag;
if (tag == NULL)
return false;
tag = input_stream_tag(is);
if (tag == NULL)
return false;
/* no stream tag present - submit the song tag
instead */
decoder->song_tag = NULL;
}
if (decoder->stream_tag != NULL)
tag_free(decoder->stream_tag);

View File

@ -30,6 +30,13 @@ struct decoder {
bool seeking;
/**
* The tag from the song object. This is only used for local
* files, because we expect the stream server to send us a new
* tag each time we play it.
*/
struct tag *song_tag;
/** the last tag received from the stream */
struct tag *stream_tag;

View File

@ -95,6 +95,8 @@ static void decoder_run_song(const struct song *song, const char *uri)
}
decoder.seeking = false;
decoder.song_tag = song->tag != NULL && song_is_file(song)
? tag_dup(song->tag) : NULL;
decoder.stream_tag = NULL;
decoder.decoder_tag = NULL;
decoder.chunk = NULL;
@ -201,6 +203,9 @@ static void decoder_run_song(const struct song *song, const char *uri)
if (close_instream)
input_stream_close(&input_stream);
if (decoder.song_tag != NULL)
tag_free(decoder.song_tag);
if (decoder.stream_tag != NULL)
tag_free(decoder.stream_tag);