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vf_vapoursynth: return dummy frames if frames are requested during init 

An attempt at fixing #1168.

I see black frames flashing, so it's certainly not perfect.
This commit is contained in:
wm4 2014-10-11 18:17:20 +02:00
parent 46b16cf206
commit 227e470ee2
1 changed files with 12 additions and 1 deletions
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13
video/filter/vf_vapoursynth.c
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@ -401,7 +401,18 @@ static const VSFrameRef *VS_CC infiltGetFrame(int frameno, int activationReason,
break;
}
if (p->initializing) {
p->vsapi->setFilterError("Frame requested during init", frameCtx);
MP_WARN(vf, "Frame requested during init! This is unsupported.\n"
"Returning black dummy frame with 0 duration.\n");
ret = alloc_vs_frame(p, &vf->fmt_in);
if (!ret) {
p->vsapi->setFilterError("Could not allocate VS frame", frameCtx);
break;
}
struct mp_image vsframe = map_vs_frame(p, ret, true);
mp_image_clear(&vsframe, 0, 0, vf->fmt_in.w, vf->fmt_in.h);
struct mp_image dummy = {0};
mp_image_set_params(&dummy, &vf->fmt_in);
set_vs_frame_props(p, ret, &dummy, 0, 1);
break;
}
if (frameno < p->in_frameno) {