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esp32s2: i2s: must reset buffer, otherwise wave samples don't start

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.. and other housekeeping when starting to play a sample
This commit is contained in:
Jeff Epler 2021-01-07 16:29:08 -06:00
parent 352226402c
commit d3afda61d8
1 changed files with 5 additions and 1 deletions
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6
ports/esp32s2/i2s_common.c
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@ -186,6 +186,7 @@ void port_i2s_play(i2s_t *self, mp_obj_t sample, bool loop) {
}
self->sample = sample;
self->loop = loop;
self->bytes_per_sample = audiosample_bits_per_sample(sample) / 8;
self->channel_count = audiosample_channel_count(sample);
bool single_buffer;
@ -195,12 +196,15 @@ void port_i2s_play(i2s_t *self, mp_obj_t sample, bool loop) {
audiosample_get_buffer_structure(sample, false, &single_buffer, &samples_signed,
&max_buffer_length, &spacing);
self->samples_signed = samples_signed;
self->loop = loop;
self->playing = true;
self->paused = false;
self->stopping = false;
self->sample_data = self->sample_end = NULL;
// We always output stereo so output twice as many bits.
// uint16_t bits_per_sample_output = bits_per_sample * 2;
audiosample_reset_buffer(self->sample, false, 0);
ESP_CALL_RAISE(i2s_set_sample_rates(self->instance, audiosample_sample_rate(sample)));
i2s_fill_buffer(self);
}