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skin_token.c, playback.c, add get_temp_mp3entry()

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add function get_temp_mp3entry() to return a valid mp3entry from scratch_mem
UNBUFFERED_ID3
or if playback hasn't been started used statically allocated mp3entry
NEXTTRACK_ID3

Change-Id: I3909fb585e0f5ad590f917ce827e991440f1fe75
This commit is contained in:
William Wilgus 2024-12-25 12:17:37 -05:00 • committed by William Wilgus
parent d323d968d8
commit b07d7d6af0
3 changed files with 51 additions and 19 deletions
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24
apps/playback.c
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@ -428,6 +428,30 @@ static inline struct mp3entry * id3_get(enum audio_id3_types id3_num)
}
}
struct mp3entry* get_temp_mp3entry(struct mp3entry *free)
{
/* free should be NULL on first call pass back the returned mp3entry to unlock */
enum audio_id3_types id3_num = UNBUFFERED_ID3;
/* playback hasn't started return NEXTTRACK_ID3 (statically allocated) */
if (!audio_scratch_memory)
id3_num = NEXTTRACK_ID3;
if (free)
{
/* scratch_mem_init() has to aquire the lock
* to change id3_num via audio_scratch_memory.. */
if (free == id3_get(id3_num))
id3_mutex_unlock();
return NULL;
}
id3_mutex_lock();
struct mp3entry *temp_id3 = id3_get(id3_num);
wipe_mp3entry(temp_id3);
return temp_id3;
}
/* Copy an mp3entry into one of the mp3 entries */
static void id3_write(enum audio_id3_types id3_num,
const struct mp3entry *id3_src)