TEST(cubeb, resampler_drain)
{
cubeb_stream_params output_params;
int target_rate;
output_params.rate = 44100;
output_params.channels = 1;
output_params.format = CUBEB_SAMPLE_FLOAT32NE;
target_rate = 48000;
cubeb_resampler * resampler =
cubeb_resampler_create((cubeb_stream*)nullptr, nullptr, &output_params, target_rate,
test_drain_data_cb, nullptr,
CUBEB_RESAMPLER_QUALITY_VOIP);
const long out_frames = 128;
float out_buffer[out_frames];
long got;
do {
got = cubeb_resampler_fill(resampler, nullptr, nullptr,
out_buffer, out_frames);
} while (got == out_frames);
/* If the above is not an infinite loop, the drain was a success, just mark
* this test as such. */
ASSERT_TRUE(true);
cubeb_resampler_destroy(resampler);
}
TEST(cubeb, resampler_output_only_noop)
{
cubeb_stream_params output_params;
int target_rate;
output_params.rate = 44100;
output_params.channels = 1;
output_params.format = CUBEB_SAMPLE_FLOAT32NE;
target_rate = output_params.rate;
cubeb_resampler * resampler =
cubeb_resampler_create((cubeb_stream*)nullptr, nullptr, &output_params, target_rate,
test_output_only_noop_data_cb, nullptr,
CUBEB_RESAMPLER_QUALITY_VOIP);
const long out_frames = 128;
float out_buffer[out_frames];
long got;
got = cubeb_resampler_fill(resampler, nullptr, nullptr,
out_buffer, out_frames);
ASSERT_EQ(got, out_frames);
cubeb_resampler_destroy(resampler);
}
static void
cbjack_stream_destroy(cubeb_stream * stream)
{
pthread_mutex_lock(&stream->mutex);
stream->ports_ready = false;
if (stream->devs == DUPLEX || stream->devs == OUT_ONLY) {
for (unsigned int c = 0; c < stream->out_params.channels; c++) {
if (stream->output_ports[c]) {
api_jack_port_unregister (stream->context->jack_client, stream->output_ports[c]);
stream->output_ports[c] = NULL;
}
}
}
if (stream->devs == DUPLEX || stream->devs == IN_ONLY) {
for (unsigned int c = 0; c < stream->in_params.channels; c++) {
if (stream->input_ports[c]) {
api_jack_port_unregister (stream->context->jack_client, stream->input_ports[c]);
stream->input_ports[c] = NULL;
}
}
}
if (stream->resampler) {
cubeb_resampler_destroy(stream->resampler);
stream->resampler = NULL;
}
stream->in_use = false;
pthread_mutex_unlock(&stream->mutex);
}
static void
opensl_stream_destroy(cubeb_stream * stm)
{
if (stm->playerObj)
(*stm->playerObj)->Destroy(stm->playerObj);
int i;
for (i = 0; i < NBUFS; i++) {
free(stm->queuebuf[i]);
}
cubeb_resampler_destroy(stm->resampler);
free(stm);
}
static void
opensl_stream_destroy(cubeb_stream * stm)
{
if (stm->playerObj) {
(*stm->bufq)->Clear(stm->bufq);
(*stm->playerObj)->Destroy(stm->playerObj);
}
int i;
for (i = 0; i < NBUFS; i++) {
free(stm->queuebuf[i]);
}
pthread_mutex_destroy(&stm->mutex);
cubeb_resampler_destroy(stm->resampler);
free(stm);
}
void test_resampler_duplex(uint32_t input_channels, uint32_t output_channels,
uint32_t input_rate, uint32_t output_rate,
uint32_t target_rate, float chunk_duration)
{
cubeb_stream_params input_params;
cubeb_stream_params output_params;
osc_state state;
input_params.format = output_params.format = cubeb_format<T>();
state.input_channels = input_params.channels = input_channels;
state.output_channels = output_params.channels = output_channels;
input_params.rate = input_rate;
state.output_rate = output_params.rate = output_rate;
state.target_rate = target_rate;
long got;
cubeb_resampler * resampler =
cubeb_resampler_create((cubeb_stream*)nullptr, &input_params, &output_params, target_rate,
data_cb_resampler, (void*)&state, CUBEB_RESAMPLER_QUALITY_VOIP);
long latency = cubeb_resampler_latency(resampler);
const uint32_t duration_s = 2;
int32_t duration_frames = duration_s * target_rate;
uint32_t input_array_frame_count = ceil(chunk_duration * input_rate / 1000) + ceilf(static_cast<float>(input_rate) / target_rate) * 2;
uint32_t output_array_frame_count = chunk_duration * output_rate / 1000;
auto_array<float> input_buffer(input_channels * input_array_frame_count);
auto_array<float> output_buffer(output_channels * output_array_frame_count);
auto_array<float> expected_resampled_input(input_channels * duration_frames);
auto_array<float> expected_resampled_output(output_channels * output_rate * duration_s);
state.max_output_phase_index = duration_s * target_rate;
expected_resampled_input.push_silence(input_channels * duration_frames);
expected_resampled_output.push_silence(output_channels * output_rate * duration_s);
/* expected output is a 440Hz sine wave at 16kHz */
fill_with_sine(expected_resampled_input.data() + latency,
target_rate, input_channels, duration_frames - latency, 0);
/* expected output is a 440Hz sine wave at 32kHz */
fill_with_sine(expected_resampled_output.data() + latency,
output_rate, output_channels, output_rate * duration_s - latency, 0);
while (state.output_phase_index != state.max_output_phase_index) {
uint32_t leftover_samples = input_buffer.length() * input_channels;
input_buffer.reserve(input_array_frame_count);
state.input_phase_index = fill_with_sine(input_buffer.data() + leftover_samples,
input_rate,
input_channels,
input_array_frame_count - leftover_samples,
state.input_phase_index);
long input_consumed = input_array_frame_count;
input_buffer.set_length(input_array_frame_count);
got = cubeb_resampler_fill(resampler,
input_buffer.data(), &input_consumed,
output_buffer.data(), output_array_frame_count);
/* handle leftover input */
if (input_array_frame_count != static_cast<uint32_t>(input_consumed)) {
input_buffer.pop(nullptr, input_consumed * input_channels);
} else {
input_buffer.clear();
}
state.output.push(output_buffer.data(), got * state.output_channels);
}
dump("input_expected.raw", expected_resampled_input.data(), expected_resampled_input.length());
dump("output_expected.raw", expected_resampled_output.data(), expected_resampled_output.length());
dump("input.raw", state.input.data(), state.input.length());
dump("output.raw", state.output.data(), state.output.length());
ASSERT_TRUE(array_fuzzy_equal(state.input, expected_resampled_input, epsilon<T>(input_rate/target_rate)));
ASSERT_TRUE(array_fuzzy_equal(state.output, expected_resampled_output, epsilon<T>(output_rate/target_rate)));
cubeb_resampler_destroy(resampler);
}