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lavfi/transpose: support slice threading 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-08-14 19:01:06 +00:00
parent ef6718a5f7
commit e74a5acb40
1 changed files with 47 additions and 25 deletions
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72
libavfilter/vf_transpose.c
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@ -133,31 +133,19 @@ static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
ff_default_get_video_buffer(inlink, w, h);
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
typedef struct ThreadData {
AVFrame *in, *out;
} ThreadData;
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr,
int nb_jobs)
{
TransContext *trans = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFrame *out;
TransContext *trans = ctx->priv;
ThreadData *td = arg;
AVFrame *out = td->out;
AVFrame *in = td->in;
int plane;
if (trans->passthrough)
return ff_filter_frame(outlink, in);
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
out->pts = in->pts;
if (in->sample_aspect_ratio.num == 0) {
out->sample_aspect_ratio = in->sample_aspect_ratio;
} else {
out->sample_aspect_ratio.num = in->sample_aspect_ratio.den;
out->sample_aspect_ratio.den = in->sample_aspect_ratio.num;
}
for (plane = 0; out->data[plane]; plane++) {
int hsub = plane == 1 || plane == 2 ? trans->hsub : 0;
int vsub = plane == 1 || plane == 2 ? trans->vsub : 0;
@ -165,12 +153,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
int inh = in->height >> vsub;
int outw = FF_CEIL_RSHIFT(out->width, hsub);
int outh = FF_CEIL_RSHIFT(out->height, vsub);
int start = (outh * jobnr ) / nb_jobs;
int end = (outh * (jobnr+1)) / nb_jobs;
uint8_t *dst, *src;
int dstlinesize, srclinesize;
int x, y;
dst = out->data[plane];
dstlinesize = out->linesize[plane];
dst = out->data[plane] + start * dstlinesize;
src = in->data[plane];
srclinesize = in->linesize[plane];
@ -180,11 +170,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
if (trans->dir&2) {
dst += out->linesize[plane] * (outh-1);
dst = out->data[plane] + dstlinesize * (outh-start-1);
dstlinesize *= -1;
}
for (y = 0; y < outh; y++) {
for (y = start; y < end; y++) {
switch (pixstep) {
case 1:
for (x = 0; x < outw; x++)
@ -219,6 +209,37 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
TransContext *trans = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
ThreadData td;
AVFrame *out;
if (trans->passthrough)
return ff_filter_frame(outlink, in);
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
out->pts = in->pts;
if (in->sample_aspect_ratio.num == 0) {
out->sample_aspect_ratio = in->sample_aspect_ratio;
} else {
out->sample_aspect_ratio.num = in->sample_aspect_ratio.den;
out->sample_aspect_ratio.den = in->sample_aspect_ratio.num;
}
td.in = in, td.out = out;
ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
@ -274,4 +295,5 @@ AVFilter avfilter_vf_transpose = {
.inputs = avfilter_vf_transpose_inputs,
.outputs = avfilter_vf_transpose_outputs,
.flags = AVFILTER_FLAG_SLICE_THREADS,
};