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Code Issues Releases Activity

avfilter/af_asoftclip: add slice threading support

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This commit is contained in:
Paul B Mahol 2020-02-09 10:47:43 +01:00
parent 9b9f441ab3
commit d842998183
1 changed files with 39 additions and 9 deletions
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48
libavfilter/af_asoftclip.c
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@ -42,7 +42,7 @@ typedef struct ASoftClipContext {
double param;
void (*filter)(struct ASoftClipContext *s, void **dst, const void **src,
int nb_samples, int channels);
int nb_samples, int channels, int start, int end);
} ASoftClipContext;
#define OFFSET(x) offsetof(ASoftClipContext, x)
@ -97,11 +97,12 @@ static int query_formats(AVFilterContext *ctx)
static void filter_flt(ASoftClipContext *s,
void **dptr, const void **sptr,
int nb_samples, int channels)
int nb_samples, int channels,
int start, int end)
{
float param = s->param;
for (int c = 0; c < channels; c++) {
for (int c = start; c < end; c++) {
const float *src = sptr[c];
float *dst = dptr[c];
@ -153,11 +154,12 @@ static void filter_flt(ASoftClipContext *s,
static void filter_dbl(ASoftClipContext *s,
void **dptr, const void **sptr,
int nb_samples, int channels)
int nb_samples, int channels,
int start, int end)
{
double param = s->param;
for (int c = 0; c < channels; c++) {
for (int c = start; c < end; c++) {
const double *src = sptr[c];
double *dst = dptr[c];
@ -222,12 +224,35 @@ static int config_input(AVFilterLink *inlink)
return 0;
}
typedef struct ThreadData {
AVFrame *in, *out;
int nb_samples;
int channels;
} ThreadData;
static int filter_channels(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
ASoftClipContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *out = td->out;
AVFrame *in = td->in;
const int channels = td->channels;
const int nb_samples = td->nb_samples;
const int start = (channels * jobnr) / nb_jobs;
const int end = (channels * (jobnr+1)) / nb_jobs;
s->filter(s, (void **)out->extended_data, (const void **)in->extended_data,
nb_samples, channels, start, end);
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
ASoftClipContext *s = ctx->priv;
int nb_samples, channels;
ThreadData td;
AVFrame *out;
if (av_frame_is_writable(in)) {
@ -249,8 +274,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
channels = 1;
}
s->filter(s, (void **)out->extended_data, (const void **)in->extended_data,
nb_samples, channels);
td.in = in;
td.out = out;
td.nb_samples = nb_samples;
td.channels = channels;
ctx->internal->execute(ctx, filter_channels, &td, NULL, FFMIN(channels,
ff_filter_get_nb_threads(ctx)));
if (out != in)
av_frame_free(&in);
@ -284,5 +313,6 @@ AVFilter ff_af_asoftclip = {
.priv_class = &asoftclip_class,
.inputs = inputs,
.outputs = outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
AVFILTER_FLAG_SLICE_THREADS,
};