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cache: cache DVD volume ID

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Since this might be queried every frame or so, it's important not to
stall the cache by doing a synchronous stream_control().
This commit is contained in:
wm4 2014-02-23 18:14:19 +01:00
parent 42e70868ab
commit f30149e80e
1 changed files with 13 additions and 0 deletions
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13
stream/cache.c
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@ -113,6 +113,7 @@ struct priv {
int stream_cache_idle;
int stream_cache_fill;
char **stream_metadata;
char *dvd_volume_id;
};
// Store additional per-byte metadata. Since per-byte would be way too
@ -301,6 +302,7 @@ static void update_cached_controls(struct priv *s)
unsigned int ui;
double d;
char **m;
char *t;
s->stream_time_length = 0;
if (stream_control(s->stream, STREAM_CTRL_GET_TIME_LENGTH, &d) == STREAM_OK)
s->stream_time_length = d;
@ -317,6 +319,11 @@ static void update_cached_controls(struct priv *s)
talloc_free(s->stream_metadata);
s->stream_metadata = talloc_steal(s, m);
}
if (stream_control(s->stream, STREAM_CTRL_GET_DVD_VOLUME_ID, &t) == STREAM_OK)
{
talloc_free(s->dvd_volume_id);
s->dvd_volume_id = talloc_steal(s, t);
}
stream_update_size(s->stream);
s->stream_size = s->stream->end_pos;
}
@ -382,6 +389,12 @@ static int cache_get_cached_control(stream_t *cache, int cmd, void *arg)
}
return STREAM_UNSUPPORTED;
}
case STREAM_CTRL_GET_DVD_VOLUME_ID: {
if (!s->dvd_volume_id)
return STREAM_UNSUPPORTED;
*(char **)arg = talloc_strdup(NULL, s->dvd_volume_id);
return STREAM_OK;
}
case STREAM_CTRL_RESUME_CACHE:
s->idle = s->eof = false;
pthread_cond_signal(&s->wakeup);