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audioconvert2: rearrange some code

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Move some code around so that we don't have to prepare the output
buffers when there is no input to process.
This commit is contained in:
Wim Taymans 2022-05-19 15:08:03 +02:00
parent d5e333eea7
commit 50c37cc801
1 changed files with 47 additions and 52 deletions
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99
spa/plugins/audioconvert/audioconvert2.c
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@ -1997,30 +1997,6 @@ static int impl_node_process(void *object)
bool in_avail = false, flush_in = false, flush_out = false, draining = false;
struct spa_io_buffers *io;
/* calculate quantum scale */
if (SPA_LIKELY(this->io_position)) {
double r = this->rate_scale;
quant_samples = this->io_position->clock.duration;
if (this->direction == SPA_DIRECTION_INPUT) {
if (this->io_position->clock.rate.denom != this->resample.o_rate)
r = (double) this->io_position->clock.rate.denom / this->resample.o_rate;
else
r = 1.0;
} else {
if (this->io_position->clock.rate.denom != this->resample.i_rate)
r = (double) this->resample.i_rate / this->io_position->clock.rate.denom;
else
r = 1.0;
}
if (this->rate_scale != r) {
spa_log_info(this->log, "scale %f->%f", this->rate_scale, r);
this->rate_scale = r;
}
}
else
quant_samples = this->quantum_limit;
dir = &this->dir[SPA_DIRECTION_INPUT];
in_passthrough = dir->conv.is_passthrough;
@ -2084,16 +2060,61 @@ static int impl_node_process(void *object)
}
}
/* calculate quantum scale */
if (SPA_LIKELY(this->io_position)) {
double r = this->rate_scale;
quant_samples = this->io_position->clock.duration;
if (this->direction == SPA_DIRECTION_INPUT) {
if (this->io_position->clock.rate.denom != this->resample.o_rate)
r = (double) this->io_position->clock.rate.denom / this->resample.o_rate;
else
r = 1.0;
} else {
if (this->io_position->clock.rate.denom != this->resample.i_rate)
r = (double) this->resample.i_rate / this->io_position->clock.rate.denom;
else
r = 1.0;
}
if (this->rate_scale != r) {
spa_log_info(this->log, "scale %f->%f", this->rate_scale, r);
this->rate_scale = r;
}
}
else
quant_samples = this->quantum_limit;
if (draining)
n_samples = SPA_MIN(max_in, this->quantum_limit);
else
n_samples = max_in - this->in_offset;
resample_passthrough = resample_is_passthrough(this);
if (this->direction == SPA_DIRECTION_INPUT) {
uint32_t out = resample_update_rate_match(this, resample_passthrough, quant_samples, 0);
if (!in_avail || this->drained) {
spa_log_debug(this->log, "%p: no input drained:%d", this, this->drained);
/* no input, ask for more */
res |= this->drained ? SPA_STATUS_DRAINED : SPA_STATUS_NEED_DATA;
return res;
}
/* in split mode we need to output exactly the size of the
* duration so we don't try to flush early */
n_samples = SPA_MIN(n_samples, out);
max_out = quant_samples;
flush_out = false;
} else {
/* in merge mode we consume one duration of samples and
* always output the resulting data */
n_samples = SPA_MIN(n_samples, quant_samples);
max_out = this->quantum_limit;
in_avail = flush_out = true;
}
dir = &this->dir[SPA_DIRECTION_OUTPUT];
out_passthrough = dir->conv.is_passthrough;
max_out = UINT32_MAX;
/* collect output ports and monitor ports data */
for (i = 0; i < dir->n_ports; i++) {
port = GET_OUT_PORT(this, i);
@ -2167,32 +2188,6 @@ static int impl_node_process(void *object)
}
}
resample_passthrough = resample_is_passthrough(this);
/* calculate in/out sizes */
if (this->direction == SPA_DIRECTION_INPUT) {
/* in split mode we need to output exactly the size of the
* duration so we don't try to flush early */
n_samples = SPA_MIN(n_samples,
resample_update_rate_match(this, resample_passthrough, quant_samples, 0));
max_out = SPA_MIN(max_out, quant_samples);
flush_out = false;
} else {
/* in merge mode we consume one duration of samples and
* always output the resulting data */
max_out = SPA_MIN(max_out, this->quantum_limit);
n_samples = SPA_MIN(n_samples, quant_samples);
in_avail = flush_out = true;
}
if (!in_avail || this->drained) {
spa_log_debug(this->log, "%p: no input drained:%d", this, this->drained);
/* no input, ask for more */
resample_update_rate_match(this, resample_passthrough, quant_samples, 0);
res |= this->drained ? SPA_STATUS_DRAINED : SPA_STATUS_NEED_DATA;
return res;
}
mix_passthrough = SPA_FLAG_IS_SET(this->mix.flags, CHANNELMIX_FLAG_IDENTITY);
end_passthrough = mix_passthrough && resample_passthrough && out_passthrough;