Vapoursynth

[Myrsloik]

I'll add b64a then. The reason I don't add all formats is that b64a (until now) didn't have an easy way to test it.

[dipje]

Now comes to noobish question.

What is 'b64a'. 16-bit-per-pixel RGB with A? Planer or packed?

What output format should my Vapoursynth be if it would have to go to b64a? Regular vs.RGB48 or do I somehow need to fake an alpha channel?

(Or do you don't know yet till you worked on it :P)

[shekh]

Yes, 16-bit-per-pixel RGB with A, packed.

I could also support b48r (no alpha) if it gives any benefit. Currently both UQRG and UQRA accept b64a so I did not bother with b48r.
I check whether alpha is valid by the codec id, not by bitmap format, so if you expect alpha from Vapoursynth I need to do something else.

[dipje]

Well I couldn't care about alpha, but some other people I guess do.

But just 'support whatever is needed to get UQRG working' is enough for me to be honest .

[kolak]

Originally Posted by Myrsloik

I'll add b64a then. The reason I don't add all formats is that b64a (until now) didn't have an easy way to test it.

b64a is quite universal, so good to have it.

[Myrsloik]

Originally Posted by kolak

b64a is quite universal, so good to have it.

I'm having trouble finding something to test b64a in. Is there any free program I can use? (madvr doesn't count since it+mpc-hc doesn't play nice with debuggers)

[kolak]

Originally Posted by dipje

Utvideo codec has now RGB 10-bit and RGB-with-alpha 10-bit versions, with quicktime support and working (import/export) in Adobe After Effects for Windows at least.

Virtualdub FilterMod has added b64a support and tested the codecs and they seem to work.
But there is no way yet to go from Vapoursynth (with RGB30 / RGB48) into Virtualdub FilterMod since Vapoursynth doesn't support those colorspaces in the VfW module. May I request this? There is a legit use now for it .

(Vpy RGB30 into Utvideo 'UQRG' seems to be close to 50% of the same RGB30 as a DPX sequence in disksize so it helps a lot with disk i/o in After Effects)


An alternative would be an updated ffmpeg with the 10-bit utvideo versions in _encoding_ mode, but since there doesn't seem to be support for the (now a fear years old) YUV422-10bit mode (UQR2) I have little hope for that happening.

Both UQY2 and UQRG has been added to ffmpeg in recent days.

[kolak]

Originally Posted by Myrsloik

I'm having trouble finding something to test b64a in. Is there any free program I can use? (madvr doesn't count since it+mpc-hc doesn't play nice with debuggers)

Hmmm...modded Vdub which has been mentioned here?
ffplay?

[Myrsloik]

Originally Posted by kolak

Hmmm...modded Vdub which has been mentioned here?

Nope, it says it doesn't know b64a. That makes me sad. Maybe there's some obscure codec that also provides b64a "decoding".

[kolak]

What about graphstudio + MadVR or ffplay?

[shekh]

Originally Posted by Myrsloik

Nope, it says it doesn't know b64a. That makes me sad. Maybe there's some obscure codec that also provides b64a "decoding".

Can I help with this?
Maybe vpy is handled by some other code path in vdub.
I tested UQRG with "avi (compat)" open option and it works.

For reference, this is how BitmapInfoHeader is filled:

biWidth = w
biHeight = h
biPlanes = 1
biCompression = VDMAKEFOURCC('b', '6', '4', 'a')
biBitCount = 64
biSizeImage = w*8 * h

Or I can try your intermediate version and see what happens.

[Myrsloik]

R33 test 1

RGB24 will now be automatically packed to BGRA so VFW likes it more.
RGB48 will be packed to b64a.
YUV444P14 will be packed to Y416.

The b64a I haven't managed to test so report your success with that.

Not much else changed, really.

[shekh]

I made some fixes and in general it "works" (will make fixed update soon).
However it looks like VS output has different component order and byte order (UQRG matches this description http://www.bitjazz.com/en/products/s...rmats.php#b64a)

[Myrsloik]

Originally Posted by shekh

I made some fixes and in general it "works" (will make fixed update soon).
However it looks like VS output has different component order and byte order (UQRG matches this description http://www.bitjazz.com/en/products/s...rmats.php#b64a)

I double checked it and I'm fairly certain I match it. The evils of endianness and so on. Even the simple description says that the order of the components is ARGB which the big endian example confirms.

[shekh]

I confirm that your output is correct. My mistake.
Uploaded new version, now everything works fine.

[dipje]

I installed Vapoursynth r33 test 1 (x64, python 35) together with virtualDub64_pack_37197 (that was the latest one you were talking about, right shekh?)

If I open a .vpy file with RGB48 I get VirtualDub FilterMod showing it as b64a and it displays fine, and I can scrub around and it seems to work.

Setting the VDubFilterMod to 'direct stream copy' in video mode I can save a raw b64a AVI file no problem.

But whatever I try to save a Utvideo 10bit version VDub seems to crash.
Is it working with UQRA / UQRG? I know Myrsloik said it's basically untested but if I see the video OK in VDubFilterMod I'm guessing Vapoursynth has done it's job.

Shekh, you said you tested your b64a with Utvideo right? Did it break doing the latest changes?

[kolak]

Same here. Looks like UTVideo problem or something in between.

[dipje]

Originally Posted by kolak

Both UQY2 and UQRG has been added to ffmpeg in recent days.

Decoding only from the looks of it

[shekh]

Originally Posted by dipje

I installed Vapoursynth r33 test 1 (x64, python 35) together with virtualDub64_pack_37197 (that was the latest one you were talking about, right shekh?)

If I open a .vpy file with RGB48 I get VirtualDub FilterMod showing it as b64a and it displays fine, and I can scrub around and it seems to work.

Setting the VDubFilterMod to 'direct stream copy' in video mode I can save a raw b64a AVI file no problem.

But whatever I try to save a Utvideo 10bit version VDub seems to crash.
Is it working with UQRA / UQRG? I know Myrsloik said it's basically untested but if I see the video OK in VDubFilterMod I'm guessing Vapoursynth has done it's job.

Shekh, you said you tested your b64a with Utvideo right? Did it break doing the latest changes?

It works for me. Tested UQRA, UQRG, x86, amd64 - all work.
Can you narrow down the test which will crash and share source & script so I try it? Also crash report from vdub may be useful.

update:
Looks like it crashed when preferences->video compression threads is set to 0.
Fixed now, build 37201

[Selur]

http://www.vapoursynth.com/doc/functions/levels.html doesn't mention the 'gamma' option of levels.