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| dumah |
| Posted: Aug 21 2011, 02:42 AM |
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Newbie
Group: Members
Posts: 3
Member No.: 29463
Joined: 28-December 10
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Old problems still exist, first few frames is green as in mkv and flv plugin 
Is there any chance to fix this in ffdshow settings or in virtualdub? |
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| fccHandler |
| Posted: Aug 21 2011, 07:10 AM |
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Administrator n00b
Group: Moderators
Posts: 3961
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I believe it is a problem with ffdshow-tryouts. I still do not know what causes it, or whether it is possible to fix it.
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May the FOURCC be with you... |
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| fccHandler |
| Posted: Aug 21 2011, 08:46 PM |
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Administrator n00b
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I took another look at this problem in depth today; unfortunately I'm even more discouraged now.
The green frames are a symptom of an empty YCbCr buffer (all bytes are zero). In some cases this is because ffdshow didn't write into the buffer, but that's not always true. Also I would say it is definitely related to the presence of b-frames in the video stream. I suspect ffdshow is implementing an internal delay and not returning any actual picture data.
I thought I might try to detect a zero-filled buffer and change it to solid black (Y = 0, Cb/Cr = 0x80) to work around the problem, but it doesn't really help. Often the buffer is not all zeroes, there are some ones and twos sprinkled around randomly. So that idea is out.
What I can do is erase the buffer (to black) before invoking ffdshow. This seems to fix the problem with the svq3 codec, but it usually doesn't make a difference with AVC.
I actually have one .mp4 in which the first sixty frames all display as green! No video appears until frame 61, the frame which follows the second key frame. 
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May the FOURCC be with you... |
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| Placio74 |
| Posted: Aug 21 2011, 09:29 PM |
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VideoAudio
Group: Members
Posts: 1216
Member No.: 21485
Joined: 24-May 07
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On the other hand...
... I do not have 'green frames' when decoding AVC by x264vfw (which uses ffh264).
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VideoAudio.pl - Serwis o technologii wideo & audio |
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| pureocean |
| Posted: Sep 10 2011, 03:15 AM |
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Advanced Member
Group: Members
Posts: 53
Member No.: 27197
Joined: 13-March 10
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@fccHandler: Finally modern a MOV/MP4 plugin. Once again, great service! You saved us all outdated MPInputDriver. Thank you very much.
Little request: FourCC string is lowercased: http://i.imgur.com/qanp2.gif
Besides could you change as 'H264' instead of 'AVC1' FourCC. Or with "Ask for extended options after this dialog." Like in Matroska input filter. |
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| fccHandler |
| Posted: Sep 10 2011, 04:36 PM |
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Administrator n00b
Group: Moderators
Posts: 3961
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This is the second time I've been asked, so I guess I will add an extended option to override the FOURCC. Although in retrospect I don't like the way it was done in the Matroska plugin...
I would want this to be sticky (i.e., saved in the registry) so I will probably store it as a table which maps a detected FOURCC to your chosen FOURCC.
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May the FOURCC be with you... |
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| MrLinh |
 Posted: Sep 11 2011, 04:39 AM |
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Newbie
Group: Members
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Member No.: 33036
Joined: 11-September 11
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Some advice please.
I'm simply trying to convert my very large .MOV files, filmed via my camera into smaller .avi or mp4 type files.
I've downloaded your quicktime plugin (V1.3) into my plugins32 folder. I've also downloaded and installed ffdshow - Beta 7.
Now VDub shows Mov file types but when open the .MOV file it's just black with no sound.
I tried to continue and convert it but the new .avi file was also all black with no sound.
What am I doing wrong ? |
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| fccHandler |
| Posted: Sep 11 2011, 03:52 PM |
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Administrator n00b
Group: Moderators
Posts: 3961
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Probably the video and/or audio is an unknown format. Check the File Information dialog for anything strange. If you can upload a small sample MOV from your camera, I would like to examine it.
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May the FOURCC be with you... |
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| MrLinh |
| Posted: Sep 12 2011, 04:17 AM |
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Newbie
Group: Members
Posts: 3
Member No.: 33036
Joined: 11-September 11
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Strangely enough if I check the file information it does not display, nothing happens at all.
Other files display the info without problems.
I'll happily make a small .MOV file for you to check out, but where can I upload it to ?
Shall I mail it to you ? I'll keep the file size under 10Mb |
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| fccHandler |
| Posted: Sep 13 2011, 01:22 AM |
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Administrator n00b
Group: Moderators
Posts: 3961
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I don't think my email will accept anything that big. See if you can upload it to a file-sharing site. For example, there is a list of such sites at the Doom9 forum:
http://forum.doom9.org/showthread.php?t=96362
As far as I know, it is pretty much impossible that my plugin would not show a File Information dialog, which makes me wonder if there is some other plugin present which is claiming this particular MOV file. You might try temporarily moving all other plugins out of the Plugins32 folder, leaving just my QuickTime.vdplugin, then see what you get.
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May the FOURCC be with you... |
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| MrLinh |
 Posted: Sep 13 2011, 03:59 PM |
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Newbie
Group: Members
Posts: 3
Member No.: 33036
Joined: 11-September 11
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Spot on. I renamed the plugin32 folder, made a new one and only copied your plugin and hey presto job done.
Thanks a million. |
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| fccHandler |
| Posted: Sep 17 2011, 10:07 PM |
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Administrator n00b
Group: Moderators
Posts: 3961
Member No.: 280
Joined: 13-September 02
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Version 1.4 is up. I've added an Extended Options dialog which allows you to override the video FOURCC:
http://fcchandler.home.comcast.net/Plugins/QuickTime
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May the FOURCC be with you... |
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| pureocean |
| Posted: Sep 18 2011, 05:30 AM |
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Advanced Member
Group: Members
Posts: 53
Member No.: 27197
Joined: 13-March 10
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@fccHandler: Thank you very, very much! |
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| Placio74 |
| Posted: Sep 28 2011, 11:24 AM |
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VideoAudio
Group: Members
Posts: 1216
Member No.: 21485
Joined: 24-May 07
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Thanks.
Only one thing... also ability to use VirtualDub internal decoders (mostly for MJPEG and DV) would be useful.
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VideoAudio.pl - Serwis o technologii wideo & audio |
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| evropej |
| Posted: Sep 28 2011, 02:07 PM |
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Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
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Cant open AVHC H264 MOV files =[. I was hoping to get a different mov plugin since the current one is not compatible with deshaker, seeking issues. |
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