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espressif: i2sout: enlarge buffers

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This commit is contained in:
Jeff Epler 2023-02-03 13:54:51 -06:00
parent 3a82730eb7
commit 75ed28665c
1 changed files with 3 additions and 3 deletions
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6
ports/espressif/common-hal/audiobusio/__init__.c
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@ -84,7 +84,7 @@ static void i2s_fill_buffer(i2s_t *self) {
if (self->instance < 0 || self->instance >= I2S_NUM_MAX) {
return;
}
#define STACK_BUFFER_SIZE (512)
#define STACK_BUFFER_SIZE (4096)
int16_t signed_samples[STACK_BUFFER_SIZE / sizeof(int16_t)];
if (!self->playing || self->paused || !self->sample || self->stopping) {
@ -188,8 +188,8 @@ void port_i2s_allocate_init(i2s_t *self, bool left_justified) {
.bits_per_sample = 16,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.communication_format = left_justified ? I2S_COMM_FORMAT_STAND_I2S : I2S_COMM_FORMAT_STAND_I2S,
.dma_buf_count = 2,
.dma_buf_len = 128, // in _frames_, so 128 is 512 bytes per dma buf
.dma_buf_count = 3,
.dma_buf_len = 1024, // in _frames_, so 1024 is 4096 bytes per dma buf
.use_apll = false,
};
CHECK_ESP_RESULT(i2s_driver_install(self->instance, &i2s_config, I2S_QUEUE_SIZE, &i2s_queues[self->instance]));