beginner problem: different output colorspace in my filter

[hanfrunz]

Hello,

maybe a stupid beginners question...
i'd like to change the output colorspace in my Convert3D-filter from yuy2 to rgb32 (because i convert only y-information to a red/cyan 3D Picture).

I tried something like this, but i always get a access violation...

if (vi.IsYUY2()) { // if YUY2 then create monochrome anaglyph output in RGB32
vi.pixel_type = VideoInfo::CS_BGR32;
dst = env->NewVideoFrame(vi);
unsigned char* dstp = dst->GetWritePtr();
dst_pitch = dst->GetPitch();
dst_width = dst->GetRowSize();
dst_height = dst->GetHeight();
...

@simon: maybe you could add a output-colorspace-change to yout simple sample, or maybe to a new simplesample2 :)

thanks for your help
hanfrunz

[hanfrunz]

ahhh i just tried to put the "vi.pixel_type = VideoInfo::CS_BGR32;" outside the GetFrame-Methode and then it works! :)

Is it possible to have it in the GetFrame-Methode?

hanfrunz

[sh0dan]

No - the colorspace is fixed after the constructor has been run - after that it may not be changed again! That would allow for filters to return frames in different colorpaces and sizes, which is a big no-no.

[hanfrunz]

i see, thanks sh0dan.

That would allow for filters to return frames in different colorpaces and sizes, which is a big no-no.

but it would look very interesting if your mediaplayer window changes size while playing... :D

hanfrunz