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ALSA input stream: add missing clean up

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This commit is contained in:
Andrew Kelley 2015-07-23 21:07:40 -07:00
parent 34039b4858
commit efa7b7cbc0
2 changed files with 20 additions and 4 deletions
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12
example/microphone.c
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@ -142,6 +142,11 @@ static void write_callback(struct SoundIoOutStream *outstream, int requested_fra
soundio_ring_buffer_advance_read_ptr(ring_buffer, total_read_count * outstream->bytes_per_frame);
}
static void underflow_callback(struct SoundIoOutStream *outstream) {
static int count = 0;
fprintf(stderr, "underflow %d\n", count++);
}
static int usage(char *exe) {
fprintf(stderr, "Usage: %s [--dummy] [--alsa] [--pulseaudio] [--in-device name] [--out-device name]\n", exe);
return 1;
@ -280,14 +285,15 @@ int main(int argc, char **argv) {
outstream->format = *fmt;
outstream->sample_rate = sample_rate;
outstream->layout = *layout;
outstream->buffer_duration = 0.2;
outstream->period_duration = 0.1;
outstream->buffer_duration = 0.1;
outstream->period_duration = out_device->period_duration_min;
outstream->write_callback = write_callback;
outstream->underflow_callback = underflow_callback;
if ((err = soundio_outstream_open(outstream)))
panic("unable to open output stream: %s", soundio_strerror(err));
int capacity = 0.4 * instream->sample_rate * instream->bytes_per_frame;
int capacity = outstream->buffer_duration * 2 * instream->sample_rate * instream->bytes_per_frame;
ring_buffer = soundio_ring_buffer_create(soundio, capacity);
if (!ring_buffer)
panic("unable to create ring buffer: out of memory");

12
src/alsa.cpp
View file

@ -1414,8 +1414,18 @@ static void instream_destroy_alsa(SoundIoPrivate *si, SoundIoInStreamPrivate *is
if (!isa)
return;
if (isa->thread) {
isa->thread_exit_flag.clear();
// TODO wake up poll
soundio_os_thread_destroy(isa->thread);
}
if (isa->handle)
snd_pcm_close(isa->handle);
deallocate(isa->poll_fds, isa->poll_fd_count);
deallocate(isa->chmap, isa->chmap_size);
// TODO
deallocate(isa->sample_buffer, isa->sample_buffer_size);
destroy(isa);
is->backend_data = nullptr;