Frame properties disappeared (possible regression)

[pinterf]

As per this forum post by FranceBB
https://forum.doom9.org/showthread.php?p=2027669#post2027669
the frame properties has been killed and are not getting passed over.

I think this commit, which replaced make_writeable with a manual frame copy, did it.
716df2f

avs_make_writable(p->env, &src); makes a complete content copy if needed, and preserves frame properties of source.
Unlike dst = avs_new_video_frame_a(p->env, &p->vi, AVS_FRAME_ALIGN);
Which kills them.
However avs_new_video_frame_p_a has a source frame property parameter, but since I don't know why avs_make_writable was replaced, I recommend it only if we really have to use avs_new_video_frame_xx construct.

@seiya-git:
Why did you make manual copy, since make_writeable is doing exactly the same. I remember making a comment on it.

[seiya-git]

For some reason, avs_make_writable triggered bug: #49 (comment)
PR #53 should fix it

[seiya-git]

@FranceBB you can test this build: assrender_bin_win.zip

[seiya-git]

@realfinder, can u also test this build with your tests?

assrender_bin_win.zip

[realfinder]

can u also test this build with your tests?

seems ok with the old tests I have, also the frame properties copied now

[seiya-git]

@realfinder thanks, then better use avs_copy_video_frame + avs_make_writable
PR updated

[seiya-git]

@pinterf can u look PR #53 and #54 please ?

[pinterf]

Thanks, yes, will check it tomorrow. And I have to re-check the makewritable problem since things must work with it (I did not check it more deeply yet, neither your recent fixes, I'm not near my PC)