ffdshow tryouts project: Discussion & Development

[Leak]

Originally Posted by foxyshadis

The wmv decoders do list wmv, as long as you have them installed correctly. I think it requires at least WMP9, I can't say for sure though, since I have 11 now.

Right, but Kado wanted the same for WMA in the audio decoder - only libavcodec can be chosen for WMA 7-9...

[Kado]

Originally Posted by foxyshadis

Will have to test the DSP issue, although some DSP plugins just plain aren't coded very nicely, and practically none support greater than 16-bit stereo.

In my case, Enhancer only suports audio up to stereo and 16bits max, so if you put the mixer (i'm using quadro settings) in front of the winamp dsp (in ffdshow) there won't be any sound processing from Enhancer, the same happens if the original file is 24bits or greater since ffdshow only converts the sample format in the end of all processing. Anyway the problem comes from the dsp stacker plugin, and since I only use it when shoutcasting (very rare) I remove the dll extension from the file and everything goes great.

Regarding WMA, I want exactly what Leak said, and I have WMP11 installed aswell.

Also since I have an Audigy 2 ZS is it worth to force 24bit output?

Kado

[iron2000]

The wmv decoder doesn't show for me.
Now on WMP10 with WM11 runtime.
WMP11 seems even more bloated and occupy more disk space so I choose 10 instead.

Are the Real and QT decoders suppose to show too?
Mine is only libavcodec.

[clsid]

Originally Posted by iron2000

Are the Real and QT decoders suppose to show too?
Mine is only libavcodec.

Only libavcodec is available for those. Also note that RealMedia is only partially supported, so it is pretty much useless.

[Inventive Software]

What the hell happened to ffdshow while I was away from Doom9 eh?

[oddball]

ffdshow has problems with high bitrate DTS (1536kbps). AC3Filter plays them back flawlessly but ffdshow output stutters. I use SPDIF out in both ffdshow and AC3Filter.

[David1105]

Which ineterface in source of ffdshow, which grants access to change settings for "Audio settings" (Specifically, check/uncheck "Volume", "Normalize" and "Max. amplification", etc.), in the Audio Decoder Properties page?

IaudioFilterVolume seems like not exposed to outside. Is IffProcAudio the right one?

Thanks!

[Kado]

Originally Posted by David1105

Which ineterface in ffdshow which grants access to change settings for "Audio settings" (Specifically, check/uncheck "Volume", "Normalize" and "Max. amplification", etc.), in the Audio Decoder Properties page?

Do you mean this?

Kado

[Peuj]

Hi,

Just to know, have the Didee's YlevelsG, YlevelsS, YlevelsC been fixed finally?

http://forum.doom9.org/showthread.ph...088#post902088

Thanks

[Revgen]

I have problems capturing video using Dscaler 4.1.15 ( www.dscaler.org ) and FFDShow tryouts version 1058 March 22nd.

This happens on all previous versions of FFDshow too. Whenvever I try to cap using the VFW interface with ffdshow, my caps look good for half-a-sec then they turn into garbage.

Here's a clip for you guys to look at.

http://www.mediafire.com/?cog4grzzqzz

It's a huffyuv cap. It plays in VLC player. I can't open it in Vdub though.

Is it possible that Dscaler and FFDshow are using shared resources and possibly causing a conflict?

[David1105]

Originally Posted by Kado

Do you mean this?

Kado

No, I mean to change those settings programmatically, rather than manually.

[_xxl]

ffdshow has problems with high bitrate DTS (1536kbps). AC3Filter plays them back flawlessly but ffdshow output stutters. I use SPDIF out in both ffdshow and AC3Filter.

Can you do a regression test to see if this is a ffdshow/tryout bug?

[multiblitz]

Originally Posted by Rectal Prolapse

DeepMeepBeep said:



I can confirm this - everything gets reported as 29.97 by FFDShow when it is attached to a VC1 decoder in the chain. Verified by Reclock and VMR9.

Can someone look into this bug ? PLEEEEEEEEAAAAAASE

[Leak]

Originally Posted by Rectal Prolapse

I can confirm this - everything gets reported as 29.97 by FFDShow when it is attached to a VC1 decoder in the chain. Verified by Reclock and VMR9.

Well, if it works anything like DVD does then that's correct.

23.976FPS material on DVDs actually states that it's 29.970FPS in the video info header, but then the decoder only returns 23.976 frames per second (with timestamps that alternate between 33 and 50ms duration) and sets flags on the video to mark it as interlaced - that's what's called soft pulldown.

It's then up to the Video Renderer to make sense of everything and recognize that mess as 23.976FPS (or just treat it as 29.970FPS interlaced, like your good old analog TV set would); of course it could be that ffdshow doesn't pass all flags along correctly, but the video stream probably is marked as 29.970FPS in the video info header.

[haruhiko_yamagata]

Originally Posted by Peuj

Hi,

Just to know, have the Didee's YlevelsG, YlevelsS, YlevelsC been fixed finally?

http://forum.doom9.org/showthread.ph...088#post902088

Thanks

Yes, it has been fixed.

[Randi]

i can confirm the high bitrate (1.5mbit) DTS bug, also that it used to work in older versions, I don't have time to test which version, though

[DeepBeepMeep]

Originally Posted by Leak

it could be that ffdshow doesn't pass all flags along correctly, but the video stream probably is marked as 29.970FPS in the video info header.

Yep that's my theory (see my previous post). However the issue isn't only about fps reported incorrectly, the video is really accelerated as if it had really 29.970 fps and consequently audio and video gets out of sync

[fastplayer]

Originally Posted by Randi

i can confirm the high bitrate (1.5mbit) DTS bug, also that it used to work in older versions, I don't have time to test which version, though

Does it happen too when downmixed to stereo?

[_xxl]

also that it used to work in older versions, I don't have time to test which version, though

I don't have time to fix your bug.

[Peuj]

Originally Posted by haruhiko_yamagata

Yes, it has been fixed.

Thanks