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avfilter/af_biquads: add slice threading

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Helps with multi-channels audio. Otherwise use threads=1.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2018-05-01 15:40:53 +02:00
parent 2308a3c7e3
commit d176497cec
1 changed files with 37 additions and 15 deletions
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52
libavfilter/af_biquads.c
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@ -416,19 +416,50 @@ static int config_output(AVFilterLink *outlink)
return config_filter(outlink, 1);
}
typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
static int filter_channel(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
AVFilterLink *inlink = ctx->inputs[0];
ThreadData *td = arg;
AVFrame *buf = td->in;
AVFrame *out_buf = td->out;
BiquadsContext *s = ctx->priv;
const int start = (buf->channels * jobnr) / nb_jobs;
const int end = (buf->channels * (jobnr+1)) / nb_jobs;
int ch;
for (ch = start; ch < end; ch++) {
if (!((av_channel_layout_extract_channel(inlink->channel_layout, ch) & s->channels))) {
if (buf != out_buf)
memcpy(out_buf->extended_data[ch], buf->extended_data[ch],
buf->nb_samples * s->block_align);
continue;
}
s->filter(s, buf->extended_data[ch], out_buf->extended_data[ch], buf->nb_samples,
&s->cache[ch].i1, &s->cache[ch].i2, &s->cache[ch].o1, &s->cache[ch].o2,
s->b0, s->b1, s->b2, s->a1, s->a2, &s->cache[ch].clippings);
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
{
AVFilterContext *ctx = inlink->dst;
BiquadsContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out_buf;
int nb_samples = buf->nb_samples;
ThreadData td;
int ch;
if (av_frame_is_writable(buf)) {
out_buf = buf;
} else {
out_buf = ff_get_audio_buffer(outlink, nb_samples);
out_buf = ff_get_audio_buffer(outlink, buf->nb_samples);
if (!out_buf) {
av_frame_free(&buf);
return AVERROR(ENOMEM);
@ -436,19 +467,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
av_frame_copy_props(out_buf, buf);
}
for (ch = 0; ch < buf->channels; ch++) {
if (!((av_channel_layout_extract_channel(inlink->channel_layout, ch) & s->channels))) {
if (buf != out_buf)
memcpy(out_buf->extended_data[ch], buf->extended_data[ch], nb_samples * s->block_align);
continue;
}
s->filter(s, buf->extended_data[ch],
out_buf->extended_data[ch], nb_samples,
&s->cache[ch].i1, &s->cache[ch].i2,
&s->cache[ch].o1, &s->cache[ch].o2,
s->b0, s->b1, s->b2, s->a1, s->a2,
&s->cache[ch].clippings);
}
td.in = buf;
td.out = out_buf;
ctx->internal->execute(ctx, filter_channel, &td, NULL, FFMIN(outlink->channels, ff_filter_get_nb_threads(ctx)));
for (ch = 0; ch < outlink->channels; ch++) {
if (s->cache[ch].clippings > 0)
@ -631,6 +652,7 @@ AVFilter ff_af_##name_ = { \
.outputs = outputs, \
.priv_class = &name_##_class, \
.process_command = process_command, \
.flags = AVFILTER_FLAG_SLICE_THREADS, \
}
#if CONFIG_EQUALIZER_FILTER