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examples: adapt samplerate in audio-dsp-src

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Follow the graph rate to generate the sine wav instead of using a
hardcoded value.

See #5135
This commit is contained in:
Wim Taymans 2026-02-24 15:12:43 +01:00
parent 5a285602e2
commit 6961bfeaa1
1 changed files with 3 additions and 2 deletions
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5
src/examples/audio-dsp-src.c
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@ -18,7 +18,6 @@
#define M_PI_M2f (float)(M_PI+M_PI) #define M_PI_M2f (float)(M_PI+M_PI)
#define DEFAULT_RATE 44100
#define DEFAULT_FREQ 440 #define DEFAULT_FREQ 440
#define DEFAULT_VOLUME 0.7f #define DEFAULT_VOLUME 0.7f
@ -61,7 +60,9 @@ static void on_process(void *userdata, struct spa_io_position *position)
return; return;
for (i = 0; i < n_samples; i++) { for (i = 0; i < n_samples; i++) {
out_port->accumulator += M_PI_M2f * DEFAULT_FREQ / DEFAULT_RATE; out_port->accumulator += M_PI_M2f * DEFAULT_FREQ *
position->clock.rate.num / position->clock.rate.denom;
if (out_port->accumulator >= M_PI_M2f) if (out_port->accumulator >= M_PI_M2f)
out_port->accumulator -= M_PI_M2f; out_port->accumulator -= M_PI_M2f;