ffdshow tryouts project: Discussion & Development

[Sebastiii]

I suppose no color means white, so yes, it's normal, that's the purpose of the option :p. If you check the "Colors & alpha" setting, any colors (caused by tags, styles, whatever) will be ignored and the ones set in the "Size, colors & alpha" section will be used instead. If you haven't changed them, the default one for the body is white.

Another build, this one includes:

- Fixes to the override SSA/ASS position option.
- Increase the maximum allowed length of the subtitle lines.
- Add italic and underline options to the GUI, for both OSD and subtitles. They're also applied to SSA/ASS subs if he option "Font style" is set.

http://www.mediafire.com/?eolh8hll74g8ej6

Thank you again for explanation :)
So it's perfect :)
Seb.

[Keiyakusha]

Another build, this one includes:

- Fixes to the override SSA/ASS position option.
- Increase the maximum allowed length of the subtitle lines.
- Add italic and underline options to the GUI, for both OSD and subtitles. They're also applied to SSA/ASS subs if he option "Font style" is set.

http://www.mediafire.com/?eolh8hll74g8ej6
Nice! However this text (http://imgur.com/IdlCr.png) which meant to be vertical... Maybe it is possible to move it somewhere away until it will be supported? :Р

leeperry
But you probably also want to compare with vsfilter because some other players (VLC I guess, don't remember...) also producing sharper subs but only vsfilter is a standard de facto.
EDIT: oops, now after STaRGaZeR's post I see that we probably talking about different things...


By the way, just now I noticed that VP8 decoder was added. This is a port from ffmpeg, isn't it? So can we expect AAC decoder?

[STaRGaZeR]

Hah, indeed! it's even blurrier if I check this option. I guess this is as sharp as it can get? fonts were much more edgy in KMP, I'll try to post a screenshot using HR.

My screenshot above had it disabled, and it still looks quite blurry to my eyes :o

That "blur" is because you're probably using YV12 as output or another chroma subsampled format. ffdshow creates an halo around the edges, dunno why. You can see it in your SS, yellow halo all over the place. Use RGB and you'll see it disappear, in fact subs look a lot better when RGB is used.

Nice! However this text (http://imgur.com/IdlCr.png) which meant to be vertical... Maybe it is possible to move it somewhere away until it will be supported? :Р

Short answer, no. Patches are welcome though :D

BTW, do you know if there's something like an "official" ASS specification?

[leeperry]

That "blur" is because you're probably using YV12 as output or another chroma subsampled format. ffdshow creates an halo around the edges, dunno why. You can see it in your SS, yellow halo all over the place. Use RGB and you'll see it disappear, in fact subs look a lot better when RGB is used.
good point, I do output YV12 to madVR.

anyway, here's a roundup of what I'm seeing(KMP using HR in RGB32HQ, and ffdshow using mVR in YV12).
that's KMP w/ GDI fonts and no AA whatsoever: http://thumbnails28.imagebam.com/8954/0b866889537940.jpg (http://www.imagebam.com/image/0b866889537940)http://thumbnails33.imagebam.com/8954/28990089537941.jpg (http://www.imagebam.com/image/28990089537941)http://thumbnails26.imagebam.com/8954/5e5c3989537938.jpg (http://www.imagebam.com/image/5e5c3989537938)

that's my favorite config tbh...my eyes don't search for inexistent edges, it prolly looks like **** on LCD.

KMP w/ GDI fonts + 2X AA: http://thumbnails15.imagebam.com/8954/6fdc3089537946.jpg (http://www.imagebam.com/image/6fdc3089537946)http://thumbnails32.imagebam.com/8954/ece6a189537944.jpg (http://www.imagebam.com/image/ece6a189537944)
KMP w/ GDI fonts + 3X AA: http://thumbnails9.imagebam.com/8954/e81b1c89537949.jpg (http://www.imagebam.com/image/e81b1c89537949)http://thumbnails27.imagebam.com/8954/ebba0689537948.jpg (http://www.imagebam.com/image/ebba0689537948)
KMP w/ rasterized fonts(can't add shadow for some reason, and I captured the wrong sub): http://thumbnails32.imagebam.com/8954/8a52d189537953.jpg (http://www.imagebam.com/image/8a52d189537953)http://thumbnails21.imagebam.com/8954/bcc0ec89537951.jpg (http://www.imagebam.com/image/bcc0ec89537951)

and now, the closest I seem to able to get to in your latest ffdshow beta: http://thumbnails32.imagebam.com/8954/effd9489537955.jpg (http://www.imagebam.com/image/effd9489537955)

first thing, the damn thing's not yellow anymore?!?! I'm colorblind on yellow/light green but figures don't lie...I ask for http://thumbnails30.imagebam.com/8954/3d928789537958.jpg (http://www.imagebam.com/image/3d928789537958) and I get http://thumbnails33.imagebam.com/8954/67b5f489537960.jpg (http://www.imagebam.com/image/67b5f489537960)

and there's some obvious AA being processed if you zoom up the picture...plus that nasty halo you're mentioning. good thing I hardly ever need subs :p

[hoborg]

Hi.

There is CTRL+ALT+O to show/hide OSD for FFDShow video decoder, but how can i show/hide OSD for Audio decoder from keyboard?
Keys&Remote is missing in FFDshow Audio decoder. Can it be added?

Thanks for all your work on FFDShow!

HOBORG

[Shinobu Maehara]

Since the old forum isn't being watched any more, I decided copy this two-message thread, since in all likelihood it just gathered dust there:
This setting appeared more than a year ago, and after a lot of testing, I absolutely recommend to uncheck it for smoother video playback. It really makes a difference, especially when CPU is not powerful enough to decode a video in real time. When disabled, the decoder instead of dropping frames, decodes as fast as possible, leading to audio desynchronization, but allowing to watch the video instead of what would be a kind of slideshow.
You can find this setting here:
ffdshow video decoder configuration > Decoder options > Drop frame on delayUnfortunately that makes dialogue impossible to follow as the lag slowly but surely accumulates. What I've found to sometimes help is setting it to some ridiculously high value, like 1 or 2 seconds.
But the basic problem is probably that it isn't implemented right. For example, when I set it to some really low value, it starts dropping frames like crazy, while the CPU load remains relatively low. So I have a hunch that the decoder instead of going straight to the next frame, waits for the next frame.
Now, as long as you're pumping out frames fast enough, waiting for the next frame makes sense. But if you're dropping frames that means you're running behind.
Of course, my diagnosis could be wrong, but if it isn't waiting, then we wouldn't expect this setting to affect the fps as much as it does. Maybe there is still another explanation, but I haven't thought of one. Perhaps it would be useful as a diagnostic to add two metrics to the OSD overlay, namely a dropped frames percentage and a time spent waiting percentage.

[dann23]

@STaRGaZeR
do you have a place where you upload nightly builds for ffdshow?

[doc_dvxm]

Hii there...

I am encoding HD movies. One week a go I was migrated to my new encoding machine. Specs are: Win 7 x64 Ultimate, i7 930 OC'ed to 3.6 Ghz, 6 Gb RAM, ATI HD5850 - Lastest Catalyst - MPC-HC x86, EVR Sync.

On my previous machine (Quad Core Q9850, 4 Gb RAM on Win 7 32 Bit Ult) I was so happy with K Lite Codec ver 6.0.0.

After migrating, I have too much codec problems. When with video everythng is fine, there is nothing heared from audio files integrated and/or not to mkv's. When I hear audio, video isn't presented. As a player, I am using MPC-HC. I've tried too many codecs, reinstalling the system 3 times.



When I select the ffdshow audio decoders as a prefered audio decoders, my system going to freez 3 sec after clicking to any audio files.

If I select from Codec package settings as a audio decoder AC3 filter, not ffdshow audio decoders, my system going to freeze again...

When I select AC3 filter from MPC-HC, it freezes again.

I've tried to install separated packages like ffdshow_rev3476_20100615_clsid_x64, ffdshow_rev3507_20100707_clsid_x64 + Later Matroska Splitter + MPC-HomeCinema.1.3.1249.0.(x64) and to run MeGUI x64 + Avisynth 64 bit. But result was only big crash - Video was full with blocking areas + no audio hearing. Also system going to freeze after clicking separated or integrated to mkv audio files.

I've tried also external player (like BSPlayer 2.5 Pro) + K Lite Codec 32/64 bit. But results were similair.

At the end, I decide that the most stable codec on my system is K Lite Mega Codec 5.9 Full (32 bit). I am running MeGUI + Avisynth 32 bit for now.
***On video configuration, I am setting ffmpeg-mt or libavcodec for H264, libavcodec for XviD, libmpeg2 for MPEG-2 and libavcodec for VC1 as video decoder.
***On audio configuration DTS - libdts, ac3 - liba52, mp3 - libmad.
***On MPC-HC Settings: ffdshow (dxva) for H264, ffdshow for VC-1, ffdshow for XviD & MPEG-2.
I've installed the .Net Framework 4.0 and Visual C++ 2010 64 bit.
When I click to any dts or ac3 audio file, my system going to blue screen (BSOD's) or freeze and don't responding to nothing except pushing 5 sec on On/Off button.

But there is no audio!

@stargazer, which codec package do you use? And which directx version do you use - 9 or 11?

What Can I do? All suggestions are wellcome.

[Konrad Klar]

@doc_dvxm

No codec (and in general no user mode program) can cause BSOD.
BSOD is symptom of error in kernel. So part of kernel (e.g. driver) is guilty, or its bottom layer (i.e. hardware; maybe incorrectly overclocked CPU) is guilty.
Applications (and any user mode component - that includes codecs) can only trigger BSOD by using erratic driver or hardware, but applications are never root cause of BSOD.

[doc_dvxm]

@doc_dvxm

No codec (and in general no user mode program) can cause BSOD.
BSOD is symptom of error in kernel. So part of kernel (e.g. driver) is guilty, or its bottom layer (i.e. hardware; maybe incorrectly overclocked CPU) is guilty.
Applications (and any user mode component - that includes codecs) can only trigger BSOD by using erratic driver or hardware, but applications are never root cause of BSOD.


Ok then... But why BSOD's appears when I am clicking on any AC3 or DTS files? Maybe you are right, but my machine working with 100% CPU load during encoding process ~ 28-30 hours per movie... Why BSOD's don't appears at this time? I'm going crazy... :devil:

I'll look for the updates of my graphic & mainboard drivers. After updating I'll look again...

[Konrad Klar]

@doc_dvxm

If you can preclude hardware as source of problem, then only other possibility is fault in kernel component. And it is only sure thing in this.
You did not specified your audio hardware.
.NET Framework does not contain kernel components.

[netwolf]

@doc_dvxm: sound card driver also sounds like a usual suspect in this case.

[doc_dvxm]

My mainboard is GIGABYTE GA-X58A-UD3R. On board Audio card is Realtek High Definition Audio, I guess. You are right I think. I'll update all drivers... I've installed previous drivers from the Manifacturers CD. If you say that my problem isn't user installed software, then I'll update my drivers to the latest versions....

Really appreciated. I'll post results soon.

Thanx Guys for your attention..

[Mixer73]

My mainboard is GIGABYTE GA-X58A-UD3R. On board Audio card is Realtek High Definition Audio, I guess. You are right I think. I'll update all drivers... I've installed previous drivers from the Manifacturers CD. If you say that my problem isn't user installed software, then I'll update my drivers to the latest versions....

I don't trust manfucturer CD as they are pretty old. is the BSOD number 124?

[oddball]

EDIT: Ignore. Was an issue with MPC HC.

[doc_dvxm]

I don't trust manfucturer CD as they are pretty old. is the BSOD number 124?

After updating of the mainboard drivers to the latest ones, I set my codecs according to the guides given HERE (http://forum.doom9.org/showthread.php?p=1349575#post1349575) and HERE (http://dbone1026.blogspot.com/2009/10/setting-up-codecs-for-7mc.html?success)

Now installed codecs & softwares are:
1. ffdshow_rev3488_20100628
2. MPC-Standalone Filters.1.3.1249.0.(x86)
3. MatroskaSplitter20052010
4. mpc-homecinema.1.3.2099.0.x86
5. Win7DSFilterTweaker_3.2
6. Graphstudio.

Now everythings looks fine. m2ts video files with VC-1 & AVC video tracks + TrueHD or DTS HD-MA audio streams playing fine.
MKV HD movies with DTS Audio tracks play fine...

Thanx to all of you guys for your hard work and for your attention. Now I can go to sleep :)

[Atak_Snajpera]

@clsid
Possible bug in AVC decoder (libavcodec and ffmpeg-mt)
http://img20.imageshack.us/img20/7715/1080isourcetssnapshot00.th.png (http://img20.imageshack.us/i/1080isourcetssnapshot00.png/)

sample: http://www.mediafire.com/?jlz64ah2vwkw19s

FFDshow r3507 (libavcodec/ffmpeg-mt) + Haali media splitter + MPC-HC (all filters disabled) = corrupted frame
FFDshow r3507 (DVXA acceleration enabled) + Haali media splitter + MPC-HC (all filters disabled) = no corruption!

[hwti]

I have a freeze with a corrupted H264 TS file :
ffdshow tryouts r3507 ffmpeg-mt NOK (with Haali Media Splitter, playing using MPC-HC, or Avisynth DirectShowSource)
ffdshow tryouts r3507 libavcodec OK (recovers after errors)
MPC-HC 1.3.2099 internal decoder OK (recovers after errors)

sample : http://www.mediafire.com/?6901m6x602d3276

[SamuriHL]

I think I may have seen this reported before but I'm not positive. After I've converted a ts (h.264/ac3) file to mkv using various methods, the resulting file has a green bar at the top when played using ffdshow dxva. Anyone know anything about this or have seen this issue at all? It plays the ts file fine. I've tried 3 different splitters with the same results. And I've created the MKV different ways. The MKV plays fine in VLC, as well.

MKV:


General
Complete name : C:\Users\Samuri\Videos\TrueBlood(6).720p.mkv
Format : Matroska
File size : 1.36 GiB
Duration : 57mn 53s
Overall bit rate : 3 364 Kbps
Encoded date : UTC 2010-07-27 01:46:14
Writing application : gdsmux
Writing library : Haali DirectShow Matroska Muxer 1.10.175.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Container profile=Unknown@4.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 57mn 53s
Bit rate : 2 913 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.105
Stream size : 1.18 GiB (87%)
Title : PID 4113
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 57mn 53s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Video delay : 33ms
Stream size : 159 MiB (11%)
Title : PID 4352
Language : English


TS:


General
ID : 1
Complete name : C:\Users\Samuri\Videos\TrueBlood(6).720p.ts
Format : MPEG-TS
File size : 1.56 GiB
Duration : 57mn 54s
Overall bit rate : 3 852 Kbps

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Duration : 57mn 53s
Bit rate mode : Constant
Bit rate : 3 300 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.119
Stream size : 1.32 GiB (85%)
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Duration : 57mn 53s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Video delay : 33ms
Stream size : 159 MiB (10%)
Language : English


Thanks!!

[oddball]

Can anyone tell me how to get better IVTC? I use ffdshow for upscaling DVD MPEG2. However I sometimes get interlaced mixed with progressive sources but if I tick deinterlace I get so many artifacts it's not nice to watch. Even using Yadif which is meant to be the best. Animation is especially worse where fine lines looks like that are drawn with a graphite pencil (Missing bits of information between the lines). I would try DScaler5 with IVTC mod but I don't think there is a way to use it with ffdshow processing/resizing etc?

Basically for anything that is 29.97 with interlace, 3:2 pulldown or 23.976 with interlace ffdshow is not cutting it for me. Oh I also tried just using IVTC Avisynth in ffdshow but even on my OC'd E6600 it was too slow.

BTW could DScaler5 with IVTC mod not be integrated into ffdshow as one of the codec options? Or does their license not allow such a thing?

[roozhou]

@oddball
ffdshow does not have a plugin system. The only way to write a filter for ffdshow is to create a DScaler filter plug-in. Sadly it only supports YUY2 and allows neither adding/removing frames nor lookahead.

@ffdshow devs
Why not add an ivtc filter to ffdshow's filter system? A software adaptive IVTC filter is easier to implement compared to a deinterlacer. Look at ivtc and pullup filter in MPlayer. They work on most of telecined content and run very fast.

[oddball]

@oddball
ffdshow does not have a plugin system. The only way to write a filter for ffdshow is to create a DScaler filter plug-in. Sadly it only supports YUY2 and allows neither adding/removing frames nor lookahead.

@ffdshow devs
Why not add an ivtc filter to ffdshow's filter system? A software adaptive IVTC filter is easier to implement compared to a deinterlacer. Look at ivtc and pullup filter in MPlayer. They work on most of telecined content and run very fast.

Thanks. I am glad to read someone else agrees with me on this. :)

Devs any chance of putting it on your todo list?

[Mixer73]

Here's an interesting one, I just use FFDShow for decoding and processing my xvid files, now I recently upgraded to an I7-965 so I thought I could crank up my processing and make it even better.

Yesterday I had a build around 2800 odd and I found I was able to run my filters with no problems at all,

Running XviD codec, Blur/NR Soften 10, Denoise 3D luma 4, chroma 3, time 6, I was comfortably able to use Post Processing - SPP Deblocking/Soft threshold without any dropped frames, and I was encoding in another window so it was doing it pretty easy.

Fast forward today and I thought I'd upgrade to 3476 and it seems to drop about 1/4 of the frames with the same config, tried libavcodec as well as xvid codec, but I have to drop back to Fast SPP Deblocking...

Any suggestions? Is it right that the performance of this has gone away this much? I kinda find it hard to believe...

[doc_dvxm]

Any suggestions? Is it right that the performance of this has gone away this much? I kinda find it hard to believe...

Maybe, with these encoding speeds, something's going wrong... Who know?

I have same problems with fffdshow 3507, 3576 + various 34.. revisions.

@Mixer73,
Please try older versions of FFDShow. Yesterday after too many tryouts, I've switched to K Lite 5.9 Full - there is ffdshow rev 3156, I guess - now everything is fine...

Btw, is it possible that the source of this problem is Haali Splitter instead of ffdshow's ffmpeg-mt & libavcodecs?

[Mixer73]

Btw, is it possible that the source of this problem is Haali Splitter instead of ffdshow's ffmpeg-mt & libavcodecs?

My problem is with simple AVI files so no Haali splitter here.

System seems to want to drop about 10 frames every 100 or so all in one block, and isn't using any more than about 10% of my CPU. Something funny going on.

[stumped]

i was just wondering if anyone has gotten the highdef audio files working on the new hm55 intel IGP and new intel hd audio codec with hdmi? I'm looking at upgrading my laptop to this and would like ot know this owkrs before the upgrade. Thanks!

[Keiyakusha]

"report this exe anonymously" seems not to be working if you don't have IE installed.
Anyway please add potplayer to the whitelist.

[nevcairiel]

i was just wondering if anyone has gotten the highdef audio files working on the new hm55 intel IGP and new intel hd audio codec with hdmi? I'm looking at upgrading my laptop to this and would like ot know this owkrs before the upgrade. Thanks!

Assuming you mean bitstreaming..
It at least works on the desktop H55 boards with an i3 or i5 CPU, so i would hope it also works on Laptops. It might cause problems if your laptop has a hybrid GPU (like, coupled with an nvidia or ATI for better performance)

[fastplayer]

"report this exe anonymously" seems not to be working if you don't have IE installed.
Anyway please add potplayer to the whitelist.
When I implemented that feature, it was a safe bet that IE was installed in 10 out of 10 cases. Things have changed with Win7, obviously...
Unfortunately, there's no object model - at least one that I know of - that allows me to start the system's default web browser via VBScript and configure it to my liking.

[tetsuo55]

Ati Catalyst 10.7 lists support for VLC DXVA in the changelog.

Technically ATI improved the performance of the dxva2 memory->memory copy operation. This change should be very visable in ffdshow and open up posibilities for more post-processing.

[rpm7200]

libavcodec can't decode dts from dts ma. why not?

[Sebastiii]

Ati Catalyst 10.7 lists support for VLC DXVA in the changelog.

Technically ATI improved the performance of the dxva2 memory->memory copy operation. This change should be very visable in ffdshow and open up posibilities for more post-processing.

Great news :)
Seb.

[oddball]

I have a problem with auto profile loading. I can get them to load for DVD upscaling using the dimensions 720 x 480 and 720 x 576 on some files but a couple of divx .avi files it ignores them. These have a different resolution of 656x256 and 672x400 respectively. I have lots of other files with different resolutions that are still classed as standard definition.

How do I get ffdshow to auto load profiles for these odd resolutions that do not match the usual 720x criteria? Or is this some bug with divx in .avi and it should be working?

[hwti]

Ati Catalyst 10.7 lists support for VLC DXVA in the changelog.

Technically ATI improved the performance of the dxva2 memory->memory copy operation. This change should be very visable in ffdshow and open up posibilities for more post-processing.

It seems some changes were needed in VLC too :
http://git.videolan.org/?p=vlc.git;a=commit;h=10e9ceafd19c1a77ab23e775563233b2b26ca20a

I assume it's not done in ffdshow.

Is there a way to enable postprocessing ? I see only "surface overlay" as preprocessing, which is quite limited.

I suppose the DXVA decoder will only connect to a DXVA compliant renderer. Can we get the decoded video, for example to use in Avisynth ? I think we would need a second output pin.

[nevcairiel]

You can't do full post-processing with a DXVA decoder. Technical limitations. Once its in the GPU, you can't get it out again :d

[stumped]

Assuming you mean bitstreaming..
It at least works on the desktop H55 boards with an i3 or i5 CPU, so i would hope it also works on Laptops. It might cause problems if your laptop has a hybrid GPU (like, coupled with an nvidia or ATI for better performance)

thank you for the answer. Helps me make sure that when i get a laptop i get the right combo for what i'm trying to do.

[oddball]

Any help on getting profiles to load based on resolution = >720P?

[Keiyakusha]

oddball
As for me, it doesn't very clear what is your problem... set 720 height in left box and in right leave 2048

[oddball]

oddball
As for me, it doesn't very clear what is your problem... set 720 height in left box and in right leave 2048

Tried that. The profile does not auto load for the 672x400 video.

[Keiyakusha]

Tried that. The profile does not auto load for the 672x400 video.

Of course. It shouldn't. What you requested is for 1280x720 and higher. Then set 1px in left box and 720 in right. EDIT: also you probably can set width to 1 left and 1280 right and switch mode to "and"

[hoborg]

Hi.
Is there a plan to add DVB Subtitles support (decoding) in to FFDshow?

[soulkeeper]

any suggestions on what settings to use in ffdshow in order to get the below black and whiter than white information passed to my projector and then calibrate accordingly with a calibration disc to video levels?
I've tried many many combinations of settings in ffdshow(levels,input/output variations in rgb conversion tab with no luck..)...
Whenever i used ffdshow,either as a decoder or for post processing, i never managed to do it...Also,i realized that when ffdshow is active ,CCC settings(br./contrast) and rendering settings output in mpc-hc don't have any effect on the video playing...

I'm using ati 5670 with 10.7,mpc-hc rev.2099 with evr custom,ati pixel output format :full rgb,enable dynamic contrast in CCC disabled and HQ YV12->rgb conversion selected and rgb 32 selected output in ffdshow..
Thanks!

[kurkosdr]

Hi there, here is another question:

I just noticed ffmpeg has a -sameq switch, which according to their documentation (http://ffmpeg.org/ffmpeg-doc.html#SEC6), provides same video quality as source (their words not mine).

How is this possible on lossy formats like mpeg 2 and mpeg 4 asp? Does this mean I can get lossless conversion to mpeg 4 asp just by using the -sameq switch on ffmpeg?

If lossless is not the case, then what exactly "-sameq" means?

PS: I am asking here because you guys have the tryouts project, so you may know ffmpeg.

[Mr VacBob]

It copies qps from the source to the destination. I don't remember how well it works.

[dann23]

what happend to ff_acm.acm? is it usable with virtualdub?

[hoborg]

Hi.
Just noticed that HD MPEG-2 decoding is preaty slow comparing to Gabest/PDVD MPEG-2 decoders.

For example this 1080i MPEG-2sample (http://hobring.esero.net/saf/samples/mpeg-2+ac3.zip) is unplayable here on Intel Atom CPU using FFDShow (all postprocessing is turned off). Nearly 3/4 frames are droped.
If i play this sample using Gabest/PDVD10 decoder, it will play perfectly, no droped frames.

Using "MPC - Mpeg Source (Gabest)" as a splitter.

EDIT:
I am comparing software decoding only, DXVA is in PDVD is turned off.

This only happend if "set interlace flag in output media type" is on in FFDShow. Source is interlaced and i want to GPU do deinterlacing So maybe this is GPU problem? I have only crapy "Intel(R) 82945G" GPU here...

Here is graph: (droped frames)
http://hobring.esero.net/saf/samples/1080_ffdshow.png

[Mercury_22]

Weird, I always got a crash with some specific files with AC3 audio and only with the ICL11 ffdshow builds; generic builds are fine for me. With the debug ffdshow builds I get no crash. I still haven't found the cause.

Same here but with the x64 version in WMC (x64) which made me to stop using FFD
It will be nice if someone can fix this (AC3Filter x64 it's working fine)

[littleD]

Hi.
Just noticed that HD MPEG-2 decoding is preaty slow comparing to Gabest/PDVD MPEG-2 decoders.

For example this 1080i MPEG-2sample (http://hobring.esero.net/saf/samples/mpeg-2+ac3.zip) is unplayable here on Intel Atom CPU using FFDShow (all postprocessing is turned off). Nearly 1/2 frames are droped.
If i play this sample using Gabest/PDVD10 decoder, it will play perfectly, no droped frames...

Using "MPC - Mpeg Source (Gabest)" as a splitter.

Do you compare here dxva with cpu decoding? Because ffdshow might be pretty fast.

[hoborg]

Do you compare here dxva with cpu decoding? Because ffdshow might be pretty fast.

No, only software decoding of course (DXVA in PDVD is off).

[nevcairiel]

Are you using libmpeg2 or libavcodec in ffdshow?
Whichever you are using, try the other one. :)