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different kind of recording beep: more faint, but not disturbing prerecording, can beep while we already record (no latency due to beep)

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5511 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn 2004-12-24 08:42:45 +00:00
parent 35c69283d4
commit dfa95c334b
3 changed files with 13 additions and 13 deletions
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12
apps/recorder/recording.c
View file

@ -322,25 +322,25 @@ bool recording_screen(void)
/* Only act if the mpeg is stopped */ /* Only act if the mpeg is stopped */
if(!(mpeg_status() & MPEG_STATUS_RECORD)) if(!(mpeg_status() & MPEG_STATUS_RECORD))
{ {
if (global_settings.talk_menu)
{ /* no voice possible here, but a beep */
mpeg_beep(0,HZ/4); /* longer beep on start */
}
have_recorded = true; have_recorded = true;
talk_buffer_steal(); /* we use the mp3 buffer */ talk_buffer_steal(); /* we use the mp3 buffer */
mpeg_record(rec_create_filename(path_buffer)); mpeg_record(rec_create_filename(path_buffer));
update_countdown = 1; /* Update immediately */ update_countdown = 1; /* Update immediately */
last_seconds = 0; last_seconds = 0;
if (global_settings.talk_menu)
{ /* no voice possible here, but a beep */
mpeg_beep(HZ/2); /* longer beep on start */
}
} }
else else
{ {
if(mpeg_status() & MPEG_STATUS_PAUSE) if(mpeg_status() & MPEG_STATUS_PAUSE)
{ {
mpeg_resume_recording();
if (global_settings.talk_menu) if (global_settings.talk_menu)
{ /* no voice possible here, but a beep */ { /* no voice possible here, but a beep */
mpeg_beep(0,HZ/8); /* short beep on resume */ mpeg_beep(HZ/4); /* short beep on resume */
} }
mpeg_resume_recording();
} }
else else
{ {

2
firmware/export/mpeg.h
View file

@ -99,7 +99,7 @@ unsigned int mpeg_error(void);
void mpeg_error_clear(void); void mpeg_error_clear(void);
int mpeg_get_file_pos(void); int mpeg_get_file_pos(void);
unsigned long mpeg_get_last_header(void); unsigned long mpeg_get_last_header(void);
void mpeg_beep(int freq, int duration); void mpeg_beep(int duration);
/* in order to keep the recording here, I have to expose this */ /* in order to keep the recording here, I have to expose this */
void rec_tick(void); void rec_tick(void);

12
firmware/mpeg.c
View file

@ -2377,17 +2377,17 @@ void mpeg_set_recording_gain(int left, int right, bool use_mic)
} }
/* try to make some kind of beep, also in recording mode */ /* try to make some kind of beep, also in recording mode */
void mpeg_beep(int freq, int duration) void mpeg_beep(int duration)
{ {
(void)freq; /* not used yet */
long starttick = current_tick; long starttick = current_tick;
do do
{ { /* toggle bit 0 of codec register 0, toggling the DAC off & on.
mas_codec_writereg(0, 0); /* some little-understood sequence, */ * While this is still audible even without an external signal,
mas_codec_writereg(0, 1); /* there may be better ways */ * it doesn't affect the (pre-)recording. */
mas_codec_writereg(0, shadow_codec_reg0 ^ 1);
mas_codec_writereg(0, shadow_codec_reg0);
} }
while (current_tick - starttick < duration); while (current_tick - starttick < duration);
mas_codec_writereg(0, shadow_codec_reg0); /* restore it */
} }
void mpeg_new_file(const char *filename) void mpeg_new_file(const char *filename)