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Check that PCM is playing/recording *after* getting the current position from the hardware layer.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19435 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2008-12-14 11:42:47 +00:00
parent a89837ac61
commit 26bf32c8aa
2 changed files with 13 additions and 12 deletions
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5
apps/pcmbuf.c
View file

@ -978,8 +978,9 @@ void pcmbuf_beep(unsigned int frequency, size_t duration, int amplitude)
/* Get the currently playing chunk at the current position. */
bufstart = (int16_t *)pcm_play_dma_get_peak_buffer(&i);
if (!bufstart)
return; /* If above isn't implemented, no beepeth */
/* If above isn't implemented or pcm is stopped, no beepeth. */
if (!bufstart || !pcm_is_playing())
return;
/* Give 5ms clearance. */
bufstart += NATIVE_FREQUENCY * 4 / 200;

20
firmware/pcm.c
View file

@ -65,7 +65,7 @@
* pcm_rec_dma_stop
* pcm_rec_dma_get_peak_buffer
* Data Read/Written within TSP -
* pcm_rec_peak_addr (RW)
* pcm_rec_peak_addr (R)
* pcm_callback_more_ready (R)
* pcm_recording (R)
*
@ -138,6 +138,8 @@ void pcm_calculate_peaks(int *left, int *right)
static unsigned long frame_period = 0;
long tick = current_tick;
int count;
const void *addr;
/* Throttled peak ahead based on calling period */
long period = tick - last_peak_tick;
@ -152,18 +154,18 @@ void pcm_calculate_peaks(int *left, int *right)
last_peak_tick = tick;
addr = pcm_play_dma_get_peak_buffer(&count);
if (pcm_playing && !pcm_paused)
{
const void *addr;
int count, framecount;
addr = pcm_play_dma_get_peak_buffer(&count);
int framecount;
framecount = frame_period*pcm_curr_sampr / HZ;
count = MIN(framecount, count);
if (count > 0)
pcm_peak_peeker(addr, count, peaks);
/* else keep previous peak values */
}
else
{
@ -372,14 +374,11 @@ volatile bool pcm_recording SHAREDBSS_ATTR = false;
void pcm_calculate_rec_peaks(int *left, int *right)
{
static int peaks[2];
int count;
const void *addr = pcm_rec_dma_get_peak_buffer(&count);
if (pcm_recording)
{
const void *addr;
int count;
addr = pcm_rec_dma_get_peak_buffer(&count);
if (count > 0)
{
pcm_peak_peeker(addr, count, peaks);
@ -387,6 +386,7 @@ void pcm_calculate_rec_peaks(int *left, int *right)
if (addr == pcm_rec_peak_addr)
pcm_rec_peak_addr = (int32_t *)addr + count;
}
/* else keep previous peak values */
}
else
{