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avfilter/vf_separatefields: switch to activate 

Fixes timestamp of last output frame.
This commit is contained in:
Paul B Mahol 2019-05-16 12:31:57 +02:00
parent 7990df05f7
commit 6276b4db97
1 changed files with 38 additions and 8 deletions
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46
libavfilter/vf_separatefields.c
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@ -20,6 +20,7 @@
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"
typedef struct SeparateFieldsContext {
@ -101,23 +102,53 @@ clone:
return ff_filter_frame(outlink, inpicref);
}
static int request_frame(AVFilterLink *outlink)
static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
{
AVFilterContext *ctx = outlink->src;
SeparateFieldsContext *s = ctx->priv;
int ret;
int ret = 0;
ret = ff_request_frame(ctx->inputs[0]);
if (ret == AVERROR_EOF && s->second) {
s->second->pts *= 2;
if (s->second) {
*out_pts = s->second->pts += pts;
extract_field(s->second, s->nb_planes, s->second->top_field_first);
ret = ff_filter_frame(outlink, s->second);
s->second = 0;
s->second = NULL;
}
return ret;
}
static int activate(AVFilterContext *ctx)
{
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *in;
int64_t pts;
int ret, status;
FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
ret = ff_inlink_consume_frame(inlink, &in);
if (ret < 0)
return ret;
if (ret > 0)
return filter_frame(inlink, in);
if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
if (status == AVERROR_EOF) {
int64_t out_pts = pts;
ret = flush_frame(outlink, pts, &out_pts);
ff_outlink_set_status(outlink, status, out_pts);
return ret;
}
}
FF_FILTER_FORWARD_WANTED(outlink, inlink);
return FFERROR_NOT_READY;
}
static av_cold void uninit(AVFilterContext *ctx)
{
SeparateFieldsContext *s = ctx->priv;
@ -129,7 +160,6 @@ static const AVFilterPad separatefields_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
},
{ NULL }
};
@ -139,7 +169,6 @@ static const AVFilterPad separatefields_outputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_props_output,
.request_frame = request_frame,
},
{ NULL }
};
@ -148,6 +177,7 @@ AVFilter ff_vf_separatefields = {
.name = "separatefields",
.description = NULL_IF_CONFIG_SMALL("Split input video frames into fields."),
.priv_size = sizeof(SeparateFieldsContext),
.activate = activate,
.uninit = uninit,
.inputs = separatefields_inputs,
.outputs = separatefields_outputs,