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Crossfade: carved out crossfade related code with lots of HAVE_CORSSFADE conditionals, eliminated fade buffer on low memory targets

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23597 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jeffrey Goode 2009-11-10 03:46:08 +00:00
parent 78f8667d57
commit 9e0953432a
9 changed files with 97 additions and 42 deletions
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5
apps/codec_thread.c
View file

@ -475,7 +475,10 @@ static void codec_thread(void)
while (1) {
status = 0;
if (!pcmbuf_is_crossfade_active()) {
#ifdef HAVE_CROSSFADE
if (!pcmbuf_is_crossfade_active())
#endif
{
cancel_cpu_boost();
}

10
apps/menus/playback_menu.c
View file

@ -40,7 +40,7 @@
#endif
#if CONFIG_CODEC == SWCODEC
#if (CONFIG_CODEC == SWCODEC) && defined(HAVE_CROSSFADE)
static int setcrossfadeonexit_callback(int action,const struct menu_item_ex *this_item)
{
(void)this_item;
@ -90,19 +90,19 @@ MENUITEM_SETTING(fade_on_stop, &global_settings.fade_on_stop, NULL);
MENUITEM_SETTING(party_mode, &global_settings.party_mode, NULL);
#if CONFIG_CODEC == SWCODEC
#ifdef HAVE_CROSSFADE
/* crossfade submenu */
MENUITEM_SETTING(crossfade, &global_settings.crossfade, setcrossfadeonexit_callback);
MENUITEM_SETTING(crossfade_fade_in_delay,
&global_settings.crossfade_fade_in_delay, setcrossfadeonexit_callback);
&global_settings.crossfade_fade_in_delay, NULL);
MENUITEM_SETTING(crossfade_fade_in_duration,
&global_settings.crossfade_fade_in_duration, setcrossfadeonexit_callback);
&global_settings.crossfade_fade_in_duration, NULL);
MENUITEM_SETTING(crossfade_fade_out_delay,
&global_settings.crossfade_fade_out_delay, setcrossfadeonexit_callback);
MENUITEM_SETTING(crossfade_fade_out_duration,
&global_settings.crossfade_fade_out_duration, setcrossfadeonexit_callback);
MENUITEM_SETTING(crossfade_fade_out_mixmode,
&global_settings.crossfade_fade_out_mixmode,NULL);
#ifdef HAVE_CROSSFADE
MAKE_MENU(crossfade_settings_menu,ID2P(LANG_CROSSFADE),0, Icon_NOICON,
&crossfade, &crossfade_fade_in_delay, &crossfade_fade_in_duration,
&crossfade_fade_out_delay, &crossfade_fade_out_duration,
@ -187,7 +187,7 @@ MAKE_MENU(playback_settings,ID2P(LANG_PLAYBACK),0,
#endif
&fade_on_stop, &party_mode,
#if CONFIG_CODEC == SWCODEC && defined(HAVE_CROSSFADE)
#if (CONFIG_CODEC == SWCODEC) && defined(HAVE_CROSSFADE)
&crossfade_settings_menu,
#endif

2
apps/menus/settings_menu.c
View file

@ -367,7 +367,7 @@ static int talk_callback(int action,const struct menu_item_ex *this_item)
oldval = global_settings.talk_file_clip;
break;
case ACTION_EXIT_MENUITEM:
#if CONFIG_CODEC == SWCODEC
#if (CONFIG_CODEC == SWCODEC) && defined(HAVE_CROSSFADE)
audio_set_crossfade(global_settings.crossfade);
#endif
if (this_item == &talk_dir_clip_item)

102
apps/pcmbuf.c
View file

@ -79,12 +79,15 @@ static char *pcmbuffer IDATA_ATTR;
static size_t pcmbuffer_pos IDATA_ATTR;
/* Amount pcmbuffer_pos will be increased.*/
static size_t pcmbuffer_fillpos IDATA_ATTR;
static char *fadebuf IDATA_ATTR;
static char *voicebuf IDATA_ATTR;
/* Gapless playback */
static bool end_of_track IDATA_ATTR;
bool track_transition IDATA_ATTR;
#ifdef HAVE_CROSSFADE
/* Crossfade buffer */
static char *fadebuf IDATA_ATTR;
/* Crossfade related state */
static bool crossfade_enabled;
static bool crossfade_enable_request;
@ -94,7 +97,6 @@ static bool crossfade_track_change_started IDATA_ATTR;
/* Track the current location for processing crossfade */
static struct chunkdesc *crossfade_chunk IDATA_ATTR;
#ifdef HAVE_CROSSFADE
static size_t crossfade_sample IDATA_ATTR;
/* Counters for fading in new data */
@ -111,6 +113,8 @@ static size_t last_chunksize IDATA_ATTR;
static size_t pcmbuf_unplayed_bytes IDATA_ATTR;
static size_t pcmbuf_watermark IDATA_ATTR;
/* Voice */
static char *voicebuf IDATA_ATTR;
static struct chunkdesc *mix_chunk IDATA_ATTR;
static size_t pcmbuf_mix_sample IDATA_ATTR;
@ -133,9 +137,8 @@ extern unsigned int codec_thread_id;
#ifdef HAVE_CROSSFADE
static void crossfade_start(void);
static void flush_crossfade(char *buf, size_t length);
#endif
static void pcmbuf_finish_crossfade_enable(void);
static bool pcmbuf_is_crossfade_enabled(void);
#endif
/**************************************/
@ -315,11 +318,13 @@ static bool prepare_insert(size_t length)
}
}
#ifdef HAVE_CROSSFADE
/* Disable crossfade if < .5s of audio */
if (LOW_DATA(2))
{
crossfade_active = false;
}
#endif
}
else /* pcm_is_playing */
{
@ -346,13 +351,13 @@ void *pcmbuf_request_buffer(int *count)
#ifdef HAVE_CROSSFADE
if (crossfade_track_change_started)
crossfade_start();
#endif
if (crossfade_active) {
*count = MIN(*count, PCMBUF_MIX_CHUNK/4);
return fadebuf;
}
else
#endif
{
if(prepare_insert(*count << 2))
{
@ -417,9 +422,11 @@ static size_t get_next_required_pcmbuf_size(void)
{
size_t seconds = 1;
#ifdef HAVE_CROSSFADE
if (crossfade_enable_request)
seconds += global_settings.crossfade_fade_out_delay
+ global_settings.crossfade_fade_out_duration;
seconds += global_settings.crossfade_fade_out_delay +
global_settings.crossfade_fade_out_duration;
#endif
#if MEMORYSIZE > 2
/* Buffer has to be at least 2s long. */
@ -438,8 +445,12 @@ size_t pcmbuf_init(unsigned char *bufend)
write_chunk = (struct chunkdesc *)pcmbuf_bufend -
NUM_CHUNK_DESCS(pcmbuf_size);
voicebuf = (char *)write_chunk - PCMBUF_MIX_CHUNK;
#ifdef HAVE_CROSSFADE
fadebuf = voicebuf - PCMBUF_MIX_CHUNK;
pcmbuffer = fadebuf - pcmbuf_size;
#else
pcmbuffer = voicebuf - pcmbuf_size;
#endif
init_pcmbuffers();
@ -447,7 +458,11 @@ size_t pcmbuf_init(unsigned char *bufend)
end_of_track = false;
track_transition = false;
#ifdef HAVE_CROSSFADE
pcmbuf_finish_crossfade_enable();
#else
pcmbuf_watermark = PCMBUF_WATERMARK;
#endif
pcmbuf_play_stop();
@ -463,6 +478,7 @@ size_t pcmbuf_init(unsigned char *bufend)
* last one in the track. */
static void start_gapless_track_change(void)
{
logf(" gapless track change");
/* we're starting a track transition */
track_transition = true;
@ -470,13 +486,28 @@ static void start_gapless_track_change(void)
end_of_track = true;
}
static void start_crossfade_track_change(bool auto_skip)
#ifdef HAVE_CROSSFADE
static bool pcmbuf_is_crossfade_enabled(void)
{
if (global_settings.crossfade == CROSSFADE_ENABLE_SHUFFLE)
return global_settings.playlist_shuffle;
return crossfade_enabled;
}
#endif
static void start_processed_track_change(bool auto_skip)
{
logf(" processed track change");
/* Notify the wps that the track change starts now */
audio_post_track_change(false);
/* Can't do two crossfades at once and, no fade if pcm is off now */
if (pcmbuf_is_crossfade_active() || !pcm_is_playing())
if (
#ifdef HAVE_CROSSFADE
pcmbuf_is_crossfade_active() ||
#endif
!pcm_is_playing())
{
pcmbuf_play_stop();
return;
@ -485,7 +516,11 @@ static void start_crossfade_track_change(bool auto_skip)
trigger_cpu_boost();
/* Not enough data, or crossfade disabled, flush the old data instead */
if (LOW_DATA(2) || !pcmbuf_is_crossfade_enabled() || low_latency_mode)
if (LOW_DATA(2) ||
#ifdef HAVE_CROSSFADE
!pcmbuf_is_crossfade_enabled() ||
#endif
low_latency_mode)
{
/* commit everything to this point and keep going, but... */
commit_chunk();
@ -494,19 +529,22 @@ static void start_crossfade_track_change(bool auto_skip)
return;
}
#ifdef HAVE_CROSSFADE
/* Don't enable mix mode when skipping tracks manually. */
crossfade_mixmode = auto_skip && global_settings.crossfade_fade_out_mixmode;
crossfade_track_change_started = true;
#endif
}
void pcmbuf_start_track_change(bool auto_skip)
{
bool crossfade = false;
bool process = false;
/* Manual track change (always crossfade or flush audio). */
if (!auto_skip)
crossfade = true;
process = true;
#ifdef HAVE_CROSSFADE
/* Automatic track change w/crossfade, if not in "Track Skip Only" mode. */
else if (pcmbuf_is_crossfade_enabled() && !pcmbuf_is_crossfade_active()
&& global_settings.crossfade != CROSSFADE_ENABLE_TRACKSKIP)
@ -514,17 +552,18 @@ void pcmbuf_start_track_change(bool auto_skip)
if (global_settings.crossfade == CROSSFADE_ENABLE_SHUFFLE_AND_TRACKSKIP)
{
if (global_settings.playlist_shuffle)
crossfade = true;
process = true;
}
else
crossfade = true;
process = true;
}
#endif
if (crossfade)
/* crossfade to next track */
start_crossfade_track_change(auto_skip);
if (process)
/* process track change (manual skip or crossfade) */
start_processed_track_change(auto_skip);
else
/* normal gapless playback. */
/* normal gapless playback */
start_gapless_track_change();
}
@ -573,9 +612,12 @@ static void pcmbuf_pcm_callback(unsigned char** start, size_t* size)
/* If we've read over the mix chunk while it's still mixing there */
if (pcmbuf_current == mix_chunk)
mix_chunk = NULL;
#ifdef HAVE_CROSSFADE
/* If we've read over the crossfade chunk while it's still fading */
if (pcmbuf_current == crossfade_chunk)
crossfade_chunk = read_chunk;
#endif
}
{
@ -636,8 +678,10 @@ void pcmbuf_play_stop(void)
}
pcmbuffer_pos = 0;
pcmbuffer_fillpos = 0;
#ifdef HAVE_CROSSFADE
crossfade_track_change_started = false;
crossfade_active = false;
#endif
flush_pcmbuf = false;
DISPLAY_DESC("play_stop");
@ -664,10 +708,6 @@ static inline int32_t clip_sample_16(int32_t sample)
return sample;
}
/**
* Low memory targets don't have crossfade, so don't compile crossfade
* specific code in order to save some memory. */
#ifdef HAVE_CROSSFADE
/**
* Completely process the crossfade fade out effect with current pcm buffer.
@ -906,7 +946,6 @@ static void flush_crossfade(char *buf, size_t length)
}
}
}
#endif /* HAVE_CROSSFADE */
static void pcmbuf_finish_crossfade_enable(void)
{
@ -920,14 +959,6 @@ static void pcmbuf_finish_crossfade_enable(void)
PCMBUF_WATERMARK;
}
static bool pcmbuf_is_crossfade_enabled(void)
{
if (global_settings.crossfade == CROSSFADE_ENABLE_SHUFFLE)
return global_settings.playlist_shuffle;
return crossfade_enabled;
}
bool pcmbuf_is_crossfade_active(void)
{
return crossfade_active || crossfade_track_change_started;
@ -951,6 +982,7 @@ bool pcmbuf_is_same_size(void)
return same_size;
}
#endif /* HAVE_CROSSFADE */
/* Voice */
@ -1100,7 +1132,11 @@ unsigned char * pcmbuf_get_meminfo(size_t *length)
bool pcmbuf_is_lowdata(void)
{
if (!pcm_is_playing() || pcm_is_paused() || pcmbuf_is_crossfade_active())
if (!pcm_is_playing() || pcm_is_paused()
#ifdef HAVE_CROSSFADE
|| pcmbuf_is_crossfade_active()
#endif
)
return false;
#if MEMORYSIZE > 2

2
apps/pcmbuf.h
View file

@ -35,9 +35,11 @@ void pcmbuf_pause(bool pause);
void pcmbuf_start_track_change(bool manual_skip);
/* Crossfade */
#ifdef HAVE_CROSSFADE
bool pcmbuf_is_crossfade_active(void);
void pcmbuf_request_crossfade_enable(bool on_off);
bool pcmbuf_is_same_size(void);
#endif
/* Voice */
void *pcmbuf_request_voice_buffer(int *count);

10
apps/playback.c
View file

@ -814,6 +814,7 @@ void audio_set_buffer_margin(int setting)
}
#endif
#ifdef HAVE_CROSSFADE
/* Take necessary steps to enable or disable the crossfade setting */
void audio_set_crossfade(int enable)
{
@ -847,6 +848,7 @@ void audio_set_crossfade(int enable)
if (was_playing)
audio_play(offset);
}
#endif
/* --- Routines called from multiple threads --- */
@ -1919,7 +1921,11 @@ static void audio_thread(void)
case Q_AUDIO_PAUSE:
LOGFQUEUE("audio < Q_AUDIO_PAUSE");
if (!(bool) ev.data && skipped_during_pause && !pcmbuf_is_crossfade_active())
if (!(bool) ev.data && skipped_during_pause
#ifdef HAVE_CROSSFADE
&& !pcmbuf_is_crossfade_active()
#endif
)
pcmbuf_play_stop(); /* Flush old track on resume after skip */
skipped_during_pause = false;
if (!playing)
@ -2059,8 +2065,10 @@ void audio_init(void)
voice_thread_init();
#endif
#ifdef HAVE_CROSSFADE
/* Set crossfade setting for next buffer init which should be about... */
pcmbuf_request_crossfade_enable(global_settings.crossfade);
#endif
/* initialize the buffering system */

4
apps/playback.h
View file

@ -58,9 +58,11 @@ bool audio_is_thread_ready(void);
int audio_track_count(void);
long audio_filebufused(void);
void audio_pre_ff_rewind(void);
void audio_set_crossfade(int type);
void audio_skip(int direction);
void audio_hard_stop(void); /* Stops audio from serving playback */
#ifdef HAVE_CROSSFADE
void audio_set_crossfade(int enable);
#endif
enum
{

2
apps/settings.c
View file

@ -964,7 +964,9 @@ void settings_apply(bool read_disk)
set_codepage(global_settings.default_codepage);
#if CONFIG_CODEC == SWCODEC
#ifdef HAVE_CROSSFADE
audio_set_crossfade(global_settings.crossfade);
#endif
dsp_set_replaygain();
dsp_set_crossfeed(global_settings.crossfeed);
dsp_set_crossfeed_direct_gain(global_settings.crossfeed_direct_gain);

2
apps/settings.h
View file

@ -339,6 +339,7 @@ struct user_settings
#endif
#if CONFIG_CODEC == SWCODEC
#ifdef HAVE_CROSSFADE
/* Crossfade */
int crossfade; /* Enable crossfade (0=off, 1=shuffle, 2=trackskip,
3=shuff&trackskip, 4=always) */
@ -347,6 +348,7 @@ struct user_settings
int crossfade_fade_in_duration; /* Fade in duration (0-15s) */
int crossfade_fade_out_duration; /* Fade out duration (0-15s) */
int crossfade_fade_out_mixmode; /* Fade out mode (0=crossfade,1=mix) */
#endif
/* Replaygain */
bool replaygain_noclip; /* scale to prevent clips */