[FFmpeg-cvslog] avfilter/af_asubboost: add timeline and slice threading support
Paul B Mahol
git at videolan.org
Tue Nov 24 11:20:07 EET 2020
ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Tue Nov 24 10:00:34 2020 +0100| [ee8ecc2730dadc8cdcd7be6e470d03a554f03b76] | committer: Paul B Mahol
avfilter/af_asubboost: add timeline and slice threading support
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ee8ecc2730dadc8cdcd7be6e470d03a554f03b76
---
libavfilter/af_asubboost.c | 72 +++++++++++++++++++++++++++++++---------------
1 file changed, 49 insertions(+), 23 deletions(-)
diff --git a/libavfilter/af_asubboost.c b/libavfilter/af_asubboost.c
index feb1a8c068..7345d3b404 100644
--- a/libavfilter/af_asubboost.c
+++ b/libavfilter/af_asubboost.c
@@ -37,7 +37,7 @@ typedef struct ASubBoostContext {
double a0, a1, a2;
double b0, b1, b2;
- int write_pos;
+ int *write_pos;
int buffer_samples;
AVFrame *w;
@@ -105,44 +105,42 @@ static int config_input(AVFilterLink *inlink)
s->buffer = ff_get_audio_buffer(inlink, inlink->sample_rate / 10);
s->w = ff_get_audio_buffer(inlink, 2);
- if (!s->buffer || !s->w)
+ s->write_pos = av_calloc(inlink->channels, sizeof(*s->write_pos));
+ if (!s->buffer || !s->w || !s->write_pos)
return AVERROR(ENOMEM);
return get_coeffs(ctx);
}
-static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+typedef struct ThreadData {
+ AVFrame *in, *out;
+} ThreadData;
+
+static int filter_channels(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
- AVFilterContext *ctx = inlink->dst;
- AVFilterLink *outlink = ctx->outputs[0];
ASubBoostContext *s = ctx->priv;
- const double wet = s->wet_gain, dry = s->dry_gain, feedback = s->feedback, decay = s->decay;
+ ThreadData *td = arg;
+ AVFrame *out = td->out;
+ AVFrame *in = td->in;
+ const double wet = ctx->is_disabled ? 0. : s->wet_gain;
+ const double dry = ctx->is_disabled ? 1. : s->dry_gain;
+ const double feedback = s->feedback, decay = s->decay;
const double b0 = s->b0;
const double b1 = s->b1;
const double b2 = s->b2;
const double a1 = -s->a1;
const double a2 = -s->a2;
- int write_pos;
- AVFrame *out;
+ const int start = (in->channels * jobnr) / nb_jobs;
+ const int end = (in->channels * (jobnr+1)) / nb_jobs;
+ const int buffer_samples = s->buffer_samples;
- if (av_frame_is_writable(in)) {
- out = in;
- } else {
- out = ff_get_audio_buffer(outlink, in->nb_samples);
- if (!out) {
- av_frame_free(&in);
- return AVERROR(ENOMEM);
- }
- av_frame_copy_props(out, in);
- }
-
- for (int ch = 0; ch < in->channels; ch++) {
+ for (int ch = start; ch < end; ch++) {
const double *src = (const double *)in->extended_data[ch];
double *dst = (double *)out->extended_data[ch];
double *buffer = (double *)s->buffer->extended_data[ch];
double *w = (double *)s->w->extended_data[ch];
+ int write_pos = s->write_pos[ch];
- write_pos = s->write_pos;
for (int n = 0; n < in->nb_samples; n++) {
double out_sample;
@@ -153,12 +151,37 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
buffer[write_pos] = buffer[write_pos] * decay + out_sample * feedback;
dst[n] = src[n] * dry + buffer[write_pos] * wet;
- if (++write_pos >= s->buffer_samples)
+ if (++write_pos >= buffer_samples)
write_pos = 0;
}
+
+ s->write_pos[ch] = write_pos;
+ }
+
+ return 0;
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ AVFilterLink *outlink = ctx->outputs[0];
+ ThreadData td;
+ AVFrame *out;
+
+ if (av_frame_is_writable(in)) {
+ out = in;
+ } else {
+ out = ff_get_audio_buffer(outlink, in->nb_samples);
+ if (!out) {
+ av_frame_free(&in);
+ return AVERROR(ENOMEM);
+ }
+ av_frame_copy_props(out, in);
}
- s->write_pos = write_pos;
+ td.in = in; td.out = out;
+ ctx->internal->execute(ctx, filter_channels, &td, NULL, FFMIN(inlink->channels,
+ ff_filter_get_nb_threads(ctx)));
if (out != in)
av_frame_free(&in);
@@ -171,6 +194,7 @@ static av_cold void uninit(AVFilterContext *ctx)
av_frame_free(&s->buffer);
av_frame_free(&s->w);
+ av_freep(&s->write_pos);
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
@@ -229,4 +253,6 @@ AVFilter ff_af_asubboost = {
.inputs = inputs,
.outputs = outputs,
.process_command = process_command,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
+ AVFILTER_FLAG_SLICE_THREADS,
};
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