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audioconvert: improve resampler

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Also emit port info the the merger monitor ports.
Proxy params and buffers to the right monitor ports.
fmtconvert does not always have dsp ports
Increase resampler output buffer sizes so that we can up and downsample.
Fix little off by one in native resampler.
Fix passthrough in speex resampler.
This commit is contained in:
Wim Taymans 2019-04-23 17:34:27 +02:00
parent b7cc9ea102
commit 2912d2506f
7 changed files with 93 additions and 38 deletions
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9
spa/plugins/audioconvert/resample-native.h
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@ -96,10 +96,12 @@ static void impl_native_update_rate(struct resample *r, double rate)
struct native_data *data = r->data;
uint32_t in_rate, out_rate, phase, gcd;
in_rate = r->i_rate * rate;
in_rate = r->i_rate / rate;
out_rate = r->o_rate;
phase = data->phase;
spa_log_trace_fp(r->log, "native %p: new rate:%f", r, rate);
gcd = calc_gcd(in_rate, out_rate);
gcd = calc_gcd(gcd, phase);
@ -151,7 +153,7 @@ static void impl_native_process(struct resample *r,
/* we need at least n_taps to completely process the
* history before we can work on the new input. When
* we have less, refill the history. */
refill = SPA_MIN(*in_len, n_taps);
refill = SPA_MIN(*in_len, n_taps-1);
for (c = 0; c < r->channels; c++)
memcpy(&history[c][hist], s[c], refill * sizeof(float));
@ -294,6 +296,9 @@ static int impl_native_init(struct resample *r)
build_filter(d->filter, d->filter_stride, n_taps, n_phases, scale);
spa_log_debug(r->log, "native %p: in:%d out:%d n_taps:%d n_phases:%d",
r, in_rate, out_rate, n_taps, n_phases);
impl_native_reset(r);
impl_native_update_rate(r, 1.0);