Topic: no video playback of a mkv file (Read 43858 times)

guest · « **on:** February 14, 2006, 03:14:57 PM »

I don't see a thing when playing one of my mkv file but i can hear the audio.
Info: video stream MPEG4-AVC
Also installed x264 codecs the result is the same. What do i miss?

guest · « **Reply #1 on:** February 14, 2006, 03:19:20 PM »

i mean "lack"

Keeper of Demons · « **Reply #2 on:** February 14, 2006, 04:02:10 PM »

You're missing CCCP.

And x264 is the avc encoder. It cannnot be used to decode.

Anonymous · « **Reply #3 on:** February 14, 2006, 04:11:35 PM »

I already installed cccp, also ddfshow. Tried with VLC, Zoomplayer and Mplayer.
Sound is in vorbis ogg format i believe.

emptyeighty · « **Reply #4 on:** February 14, 2006, 05:02:48 PM »

Your system may have more than a healthy dose of codecs installed. Please:
1. get the CCCP Insurgent from >click here<,
2. start it, go to Tools -> test render and select the problematic file,
3. then go to Tools -> System Information,
4. then go to Tools -> CRC Check and select the same problematic file,
5. finally, use File -> Save log, save the file and attach it to a post in this forum.

guest · « **Reply #5 on:** February 14, 2006, 05:40:05 PM »

Test Render of: E:\episode 1.mkv
Filter 0: Default DirectSound Device
Filename: C:\WINDOWS\System32\quartz.dll
Date: 2003-05-30 | 09:00:02
Filter 1: Video Renderer
Filename: C:\WINDOWS\System32\quartz.dll
Date: 2003-05-30 | 09:00:02
Filter 2: ffdshow Audio Decoder
Filename: C:\Program Files\Combined Community Codec Pack\Filters\ffdshow.ax
Date: 2005-11-29 | 21:51:02
Filter 3: DirectVobSub (auto-loading version)
Filename: C:\WINDOWS\System32\VSFilter.dll
Date: 2004-03-08 | 00:07:06
Filter 4: ffdshow MPEG-4 Video Decoder
Filename: C:\Program Files\Combined Community Codec Pack\Filters\ffdshow.ax
Date: 2005-11-29 | 21:51:02
Filter 5: Matroska Splitter
Filename: C:\WINDOWS\System32\MatroskaSplitter.ax
Date: 2004-09-06 | 18:30:52
Filter 6: E:\episode 1.mkv
Filename: C:\WINDOWS\System32\quartz.dll
Date: 2003-05-30 | 09:00:02

System Information
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 1 (2600.xpsp1.020828-1920)
Processor: AMD Duron(tm) Processor, ~600MHz
DirectX Version: DirectX 9.0c (4.09.0000.0904)

Video Information
Video Card: NVIDIA NVIDIA GeForce DDR (Microsoft Corporation)
Video Memory: 32.0 MB
Chip Type: GeForce DDR
Driver Filename: nv4_disp.dll
Driver Version: 6.13.0010.2958 | 8/29/2002 03:41:10
Disp Settings: Iiyama MF-8617E/T VisionMaster | 1024 x 768 (32 bit) (85Hz)

Audio Information
Audio Device: VIA Audio (WAVE)
Driver Name: ac97via.sys
Driver Version: 5.10.0000.3622 | 8/28/2002 23:00:56
Default Sound Playback: true
Default Voice Playback: true

emptyeighty · « **Reply #6 on:** February 15, 2006, 02:50:35 AM »

You have old versions of the Matroska Splitter and VSFilter lying around. They need to be removed.
Fire up CCCPi, select MatroskaSplitter.ax and VSFilter.dll in the right column and hit unregister. Make sure you unregister the ones in C:\WINDOWS\system32, this is important!

guest · « **Reply #7 on:** February 15, 2006, 07:52:35 AM »

I can see the video now, though it stutter. Can this be fixed ? Thanks for the help

Keeper of Demons · « **Reply #8 on:** February 15, 2006, 08:21:19 AM »

a Duron 600 MHz is not likely to be able to decode h264 video streams without serious stuttering.

If you want, you can try these two options, but chances for success are low:

1) download CoreAVC from the file attachement. Unzip the file and copy CoreAVC.ax somewhere on your computer. Use the Insurgent -> press the Register button -> brose to where you put CoreAVC.ax. Now go to start -> all programs -> cccp -> ffdshow video decoder configuration -> Codecs -> set h264 to disabled -> Apply -> Ok. Try to play the file in MPC. If playback still stutters, you can try method no 2.

2) get mplayer from here. Unzip it somewhere. Go to the folder where you have unzipped it, look for mplayer.exe. Drop your file over mplayer.exe. Playback should start. This player is controlled through keyboard shortcuts. In the folder where you have unzipped mplayer you can find the manual to mplayer where those shortcuts are presented.

If both methods failed, then you won't be able to play h264 video on your computer. See maybe there's a xvid version of the same file done by the same group or another group. Xvid encoded video should play, as long as they are of "normal" resolutions like 640x480.

The best solution would be to upgrade your computer. A Intel Pentium 4 processor with 2.4 GHZ CPU will playback such files very well and should be at an affordable price. Don't look at cheap AthlonXPs, Celerons or Durons. They're money wasted. Of course, if money are not an isue you can go way way up the ladder of CPUs. Just dont go below or you'll soon regret the investment made.

(Removed attached CoreAVC. --Lord)

TheFluff · « **Reply #9 on:** February 15, 2006, 10:07:43 AM »

Keeper of Demons: http://www.cccp-project.net/wiki/index.php?title=CoreAVC
I wrote that a while ago just so I didn't have to describe the process each time.

guest · « **Reply #10 on:** February 15, 2006, 10:16:04 AM »

The CoreAVC file did help the stuttering. But only if i open it with zoomplayer. Using MPC crashed my system.
Also tested it on a mkv file with h264, and to my surprise the stuttering has stopped but the sound is faster than the video playback.

Another thing is why the subtiteling of the mkv files after unregistering MatroskaSplitter.ax and VSFilter.dll dissapeared? I checked the settings of zoomplayer and subtiteling is enabled.

Thanks a lot guys, great support here.

Keeper of Demons · « **Reply #11 on:** February 15, 2006, 02:14:05 PM »

Uninstall CCCP. Update your video and audio drivers. Install CCCP again. Agree to reset settings when it asks you (it will ask twice). Then go to start -> all programs -> cccp -> ffdshow video decoder configuration -> Codecs -> set h264 to disabled -> Apply -> Ok (to have CoreAVC enabled for avc and not ffdshow).

guest · « **Reply #12 on:** February 15, 2006, 05:22:57 PM »

I haven't uninstall yet, but i found out that VSFilter.dll is required for displaying subtiteling. http://www.inmatrix.com/zplayer/formats/vsfilter.shtml

After installing this the subs returned, sound is still faster than video for the h264 encoded mkv file (a bit more worse than before). CPU usage 95%-100% not even full screen, reaction of the play/pause controls is slowed down as well.

Conclusion: 600 mhz system can still handle h264 encode but need to sacrifce subs.
Solution: optimization of this encoder by the libavcodec developers or a brand new system.

Nicholi · « **Reply #13 on:** February 16, 2006, 07:34:18 AM »

I have no idea how much CPU usage this saves, but it might be enough on such a low-end system to make a difference. In VSFilter options you can turn on 'Pre-buffer subpictures', which might allow you to play them too. Not that it matters for you but this will also completely stop Karaoke from playing in SSA/ASS tracks.

I had a similar issue once with normal ASP (XviD/DivX) and VobSubs. It was on a friend's mini-itx but the darned thing was 1 GHz I think. Stupid mini-itx boards to blame though. Anyways my solution in the end was to actually use ffdshow's subtitle rendering because VSFilter seemed to just require way too much power for just the VobSubs, and remember this isn't even H.264 video either. You could possible do that for now, till you upgrade

. FFDShow can only do SRT and VobSubs at this time, however there is lots of SSA/ASS work being put in. Just turn it on in the FFDShow Video Config.

guest · « **Reply #14 on:** February 16, 2006, 09:43:23 AM »

Thanks for the suggestion Nicholi, i already had it turned on and posted the cpu usage in my previous reply. Decoding h.264 requires unfortunately too much cpu power. My Duron has been serving me for almost 6 yrs

anyway i'm delaying the upgrade for a while. I can try clocking but i probably won't get that much power.

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