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avfilter/vf_framerate: always request input if no output is provided in request_frame

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Fixes ticket #6285.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2017-04-05 01:41:15 +02:00
parent f1d80bc630
commit 51948b9d9e
1 changed files with 26 additions and 16 deletions
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42
libavfilter/vf_framerate.c
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@ -440,7 +440,7 @@ copy_done:
s->pending_end_frame = 0;
s->last_dest_frame_pts = s->work->pts;
return ff_filter_frame(ctx->outputs[0], s->work);
return 1;
}
static void set_srce_frame_dest_pts(AVFilterContext *ctx)
@ -586,6 +586,7 @@ static int config_input(AVFilterLink *inlink)
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
{
int ret;
AVFilterContext *ctx = inlink->dst;
FrameRateContext *s = ctx->priv;
@ -606,7 +607,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
set_srce_frame_dest_pts(ctx);
}
return process_work_frame(ctx, 1);
ret = process_work_frame(ctx, 1);
if (ret < 0)
return ret;
return ret ? ff_filter_frame(ctx->outputs[0], s->work) : 0;
}
static int config_output(AVFilterLink *outlink)
@ -658,23 +662,13 @@ static int request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
FrameRateContext *s = ctx->priv;
int val, i;
int ret, i;
ff_dlog(ctx, "request_frame()\n");
// if there is no "next" frame AND we are not in flush then get one from our input filter
if (!s->srce[s->frst] && !s->flush) {
ff_dlog(ctx, "request_frame() call source's request_frame()\n");
val = ff_request_frame(outlink->src->inputs[0]);
if (val < 0 && (val != AVERROR_EOF)) {
ff_dlog(ctx, "request_frame() source's request_frame() returned error:%d\n", val);
return val;
} else if (val == AVERROR_EOF) {
s->flush = 1;
}
ff_dlog(ctx, "request_frame() source's request_frame() returned:%d\n", val);
return 0;
}
if (!s->srce[s->frst] && !s->flush)
goto request;
ff_dlog(ctx, "request_frame() REPEAT or FLUSH\n");
@ -695,7 +689,23 @@ static int request_frame(AVFilterLink *outlink)
}
set_work_frame_pts(ctx);
return process_work_frame(ctx, 0);
ret = process_work_frame(ctx, 0);
if (ret < 0)
return ret;
if (ret)
return ff_filter_frame(ctx->outputs[0], s->work);
request:
ff_dlog(ctx, "request_frame() call source's request_frame()\n");
ret = ff_request_frame(ctx->inputs[0]);
if (ret < 0 && (ret != AVERROR_EOF)) {
ff_dlog(ctx, "request_frame() source's request_frame() returned error:%d\n", ret);
return ret;
} else if (ret == AVERROR_EOF) {
s->flush = 1;
}
ff_dlog(ctx, "request_frame() source's request_frame() returned:%d\n", ret);
return 0;
}
static const AVFilterPad framerate_inputs[] = {