Single Black Frame

Hi,
For some reason, when I begin the capture process, the producer/consumer loop structure below gives me the first image as being black(empty) with all subsequent frames working fine. I'm not exactly sure why it is doing this. Any input would be greatly appreciated. The frame before the one below collects information about exposure/gain of the camera and how many frames are to be captured, so shouldn't really influence the capturing process.
Konstantine
Solved!
Go to Solution.

Hi Konstantine,
The reason that you are getting this is an issue with dataflow, you are placing a element in the queue before the buffer image copy is complete. Try combine all the error wires in the top loop to enforce dataflow.
Joe Daily
National Instruments
Applications Engineer
may the G be with you ....

Similar Messages

Single black frame in enhanced podcast rendered in GarageBand.

When a podcast created in Garageband is exported or shared with itunes, the resultant .mov and .m4a are jpeg w/aac and will have occasional black frame at a chapter marker.
The chapters are created by droping images into the podcast track. These tiff images created from grab captures of screen shots. The audio is an mp3.
Anybody have any suggestions or ideas of cause?
OS and iLife are uptodate.

Hi there, thanks for your advices. Unfortunately, none of them worked out.
The problem must be at some point where the screenpast part gets rendered out of Premiere. I recorded the screencast in Camtasia, rendered it out as an MP4 with H.264, imported the clip to Premiere, editetd everything together with other footage, and when exporting it out of Premiere (no matter what format), it all got messed up.
So I did the screencast again, the settings where the same and "suddenly" (well, after hours of swearing and rendering) the black frame was gone after the Premiere render. Still don't know what the actual problem was. Just hope it doesn't happen again because it's such a waste of time with all the rendering.

FCP7 export problems - black frames and text irregularities

I'm on FCP 7.0.3 and have recently started editing stuff from my new Panasonic HDC-HS900.
I started a small project just to get to grips with the new workflow and realised that I had made the mistake of trying to import .mts files. However, I found a plugin from Panasonic's website which allows this but editing with the imported files is a nightmare because FCP starts running so slowly that it is impossible to make any kind of precise edits - the scrubber bar jumps all over the place and moving it forward one frame with the arrow keys takes about three seconds.
So, I realised my mistake and having discovered that using ClipWrap circumvents all these problems, I devised a new workflow and resolved to stick to it.
The only problem is that I showed the test edit to my girlfriend and her parents and despite it being full of bad stuff (I mean very rough edits caused by the slowness and audio problems that I couldn't be bothered sorting out also because the process was so frustratingly slow), they all liked it. So, whilst I would like to consign this experimental disaster to the bin, I need to at least iron out some of the problems so that I can give my girlfriend a copy which does not look quite so awful.
So, after labouring through this excruciatingly slow process, I try to export the finished thing only to find that the opening ten seconds, where I have used a slow motion sequence (which, ironically, is not an .mts file - it's a 10s .mov file I exported from FCP in order to convert it from 50p to 25p slow motion without losing frames) and a bit of text which dissolves in and out, there are a few single black frames and the text disappears momentarily several times.
Everything else is fine (apart from the awful edits!).
Having now left FCP to render the whole sequence, I managed to inspect it frame by fram much quicker and on the timeline it looks exactly as it should - the edit itself couldn't be much simpler; two layers - one text, one .mov file. dissolve the text in for one second, two seconds later dissolve in the .mov then a virtual reverse process. What could possibly go wrong?
Anyway, I have deleted all the render files and I am currently waiting for the sequence to re-render - estimated time: two hours.
All I want to do is wrap this junk up so that I can start a proper project.

I'll have to respond in an unordered fashion, just to try to make sense in my reply.
I was using ProRes 422 HQ because I found three options in ClipWrap and had to make a quick decision based on two minutes research and having found by trying it that 422 HQ files were only about 25% bigger than 422 files, I figured I had nothing to lose - especially as the workflow I WILL BE employing does not require permanent storage of the files and I now have 1TB external space for media archive storage and over 600GB internal space for ongoing projects. I might as well use the highest quality.
The reason I suspected the rendering files is that they were being used by FCP in the export of the project - evident in the fact that it takes almost three hours to save an unrendered sequence vs about six minutes to export a rendered sequence. Therefore, being unaware of the inherant problem you mention, I think it was reasonable to guess that a forced re-rendering might have sorted it out.
Yes, with 20/20 hindsight, it might have been quicker but, again being unaware of the issue you mention - which I shall have to look into - it seemed like a small problem which ought to have a had a simple answer. But now I know better.
I have, incidentally, discovered that all the dissolves I inserted have very similar problems.
And, to answer your first point last, I have already gone down that path - I'm just waiting for the results.
Could you perhaps point me at some article where I can read about the inherant problems of H.264, please?

Black frame around icons when highlighted - double commands under the apple

when anything highlighted with a mouse click a black frame appears - also there are double commands under the apple menu - example
shut down
shut down
restart
restart
I did every trick I could think of - safe, single user, open firmware reset-all, account cache, disc utility, - only one account is effected, other accounts are ok - Monday was first time, I was 1 hour away form rebuilding account when the problem went away, on its own - this morning its back on a different machine, again just one account - G5 running 10.4.8 - any ideas?

Turn off
SystemPreferences>UniversalAccess>Seeing>VoiceOver
While you're at it, go to the Keyboard&Mouse preferences>KeyboardShortcuts and uncheck the VoiceOver shortcut (Cmd-F5)

Black frames on playback and render with .MOV exported from Avid

Hi there,
some of our customers experience troubles while importing quicktime .mov files from last Avid Media Composer versions (latest 6.0.x, 6.5.x and 7.0.x versions).
Using any Avid codecs for export, when clips are played in AE, black frames appear on video, these are also present on renders and exported files.
Playing the same clips in other softwares and media players, the video is clear.
As we discussed with Avid support, Avid made changes in his software and codecs and it sounds like AE doesn't correctly interpret it.
Have you already heard of (or experienced) such troubles?
Best regards,
Sebastien GEFFROY,
CTM Solutions.

I'm having the same problem, but can't get a clean render out using a different codec.
I was trying to render all my After Effects compositions out as Quicktime with DNxHD 120 selected. This would give me random full frames of solid red. Every single render.
So, I tried selecting Quicktime NONE and most of the renders would just abort with the bleating lamb noise.
So, I tried AVI uncompressed. Every single composition rendered out, but every single rendered clip had exactly the same glitch - A solid black line that spans the bottom of the frame and increases in size every frame until it fills the screen. Then the picture returns and a couple of seconds later a full frame black flash. Same pattern and same duration - every clip.
So, if DNxHD codec has a problem and Quicktime has a problem and AVI has a problem I'd say it's safe to say that it's probably not a recording codec issue. How can three different codecs present a problem?
I've checked my source files. It doesn't matter what drive I place them one, either an internal solid state drive, or USB3 spinning disk in a caddy or network path to a NAS raid, or system drive, they give the same problems.
It doesn't matter what the source files are either - Tiff sequences from 3DS Max, JPG timelapse sequences from Nikon camera, video camera files, Quicktimes, AVIs, you name it - Broken renders.
So, I'd say that having tested my input files and tried many render codecs that the problem lies in between - Either the Computer or After Effects itself.
Now, up until Creative Cloud I was using my trusty old CS2. That worked fine.
If you read the internet it's full of people having rendering problems when using CS6 and CC.
Now, in my understanding, the main difference between me using CS2 and CC is the Adobe software - GPU renderer.
I am using the exact same workflow on the exact same equipment:-
HP Z1 Xeon E31280 @ 3.50GHz
Windows 7 64 bit professional
8GB DDR3 RAM.
Nividia Quadro 3000M.
I'm close to giving up. I'm going for a full system re-install, the gound up this bank holiday onto a brand new empty system drive.
I'll follow it with trying out various Nvidia drivers.
Can anyone point me to a definitive answer? I have trawled many different forums, with people all having the same issues and no one has an answer.

Media Encoder CC 14 renders with black frame at the end

Hello,
my Media Encoder running on Mac Yosemite makes a black frame at the end of h264 clips...
How can i fix this?
Thanks

I just figured out - it might be a quicktime viewer problem...

I am using the old imovie HD on my old Mac laptop... it works fine, but when I export a video to YouTube there is a black frame around it.. how do i get rid of that? thanks!

I am using the old imovie HD on my old Mac laptop... it works fine, but when I export a video to YouTube there is a black frame around it.. how do i get rid of that? thanks!

Hi MyAppleID99,
You may want to check to make sure the clip hasn't been moved back and forth between wide screen and standard aspect ratios; sometimes a combination of letterboxing and pillarboxing can lead to a black frame "windowbox" when playing the final video. You may find the following article helpful:
Apple Support: What are Letterboxing, Pillarboxing and Windowboxing?
http://support.apple.com/kb/ht2320
Regards,
- Brenden

Data merging: how to get multiple records in single text frame?

Hi
I'm experimenting with data merging in InDesign CS3. The biggest stumbling block I've come across is trying to get my records to flow as continuous text in a single text frame (which would, ideally, autoflow onto new pages in the document). The records vary considerably in length, and so I can't just create a standard text frame to repeat on the page.
Perhaps data merging isn't the best way of doing this and I should be learning to script instead. I feel like I'm just one step away, though.
Any suggestions would be appreciated.

OK, new scenario now:
Is it possible to set a text box to auto-resize to fit the content that comes in during the data merge?
I have placed one of my data fields in a text box with a stroke and fill, and placed this as an anchored object in the main text box with the other fields. The problem is that the length of text in this field varies considerably, and I'd like the text to fit snugly within its box. Ideally this text box would not appear at all if the field is blank for a particular record.
I hope I've explained all of that clearly enough. Any ideas?

What is the best format to choose when converting mts files to fit well with iMovie? I am using iCoolsoft for conversions and can pick from almost any kind of formats to convert to. I don't want to get the black frames... what do you advice me to pick?

I have lots of MTS files stored on an external hard drive that I want to use in my iMovie films. Now, as you know, iMovie doesn't like them. I have bought iCoolsoft for converting my video files into any format I want but now I've got another problem: what format is the best for iMove? Some of the formats I've tried are giving me a black frame around the video clips and some are bigger and other smaller but anyway I don't want them at all! Can anyone recommend what format to convert to to keep the original clip's size and no frames and still be liked by iMovie to be able to import them?
Much thankful for any kind of support and reply on this one.
Eva

The format iMovie uses when you edit video after it's imported is Apple Intermediate Codec, it will have the file ending .mov but internally it's set so the Mac can edit individual frames easier and play them back easier at full speed. If you have the option of saving to QuickTime .mov see if there is a pulldown list of all the different "codecs", that's the style or flavor of compression applied to the video frames. If Apple Intermediate Codec (AIC) appears on that pull-down list choose that as your codec when you save to .mov.

Black frames after export in Premiere CC 2014

Hi,
I am getting black frames in my exported video from Premiere CC 2014 and Media Encoder CC 2014. This is my first project in the CC 2014 suite, but in CC I never had this problem. When exporting directly from Premiere or queued from Media Encoder, black frames appear at random through out my video. I am using presets H264 HD 720 29.97 and Vimeo 720 29.97. My sequence is ProRes 422 1080 29.97. I am downscaling the final product for online.
I am making no changes to the process at all. Both formats of h264 give me black frames. Has anyone else had this issue? Any help would be appreciated. Thanks.

I have also now exported to QuickTime ProRes 720 29.97 and H264 1080 20.97 and still get black frames in the final export. I am using Premiere v8.1 and Media Encoder 8.1.0.122.

Black frames at end of render

I'm creating 10 second video loops for playback on a website. But when I export the video, it seems to be adding a black frame at the end of the render, so it skips when it loops.
I've created several of these videos just fine awhile back with the same file, and same preferences. The problem didn't start until I updated to CC 2014.
Anyone have any ideas? Am I just missing something in my render dialogue box?

Hi Cody,
cody_paulson wrote:
Thanks for the response, Kevin, I've tried this and it's not the problem. No matter where I mark the in or out—or even if I don't mark them at all—it still adds the black frame.
Now this is where things get interesting. The more I play with my export settings, I'm finding this only happens when I export with as H264. If I export as Quicktime, but with an H264 codec, it's fine.
I just did a test and there is no black frame on my export. Can you try again with a new project and different media?
Thanks,
Kevin

Media encoder inserts black frame at beginning, when converting my MOV file to H264 for YouTube 720pHD

I'm using Adobe Media Encoder to convert my MOV file to H264, and selecting "YouTube 720pHD" (for Instagram) as I was instructed by someone at Adobe over the phone. But it inserts a black frame at the beginning or end. When I open the converted file on my desktop, the black frame is the first frame. After I upload to Instagram, the black frame is at the end. How can I get rid of the black frame?! Please help!

Welcome to the furum, Forrest.
Hmmm. I don't recall hearing of that problem. There may not be many users who can offer a solution.
This workaround should work, however: Open the exported movie in QuickTime Player and remove the first frame. (I think it's only the first frame that is black, not the first second. Remove all the black, whatever it is.) Save the movie. That may cause QT Player to save it into a new movie. Use the modified movie for your Web site. QuickTime Pro is required — $30 from Apple.
Note that you've posted in the iMovie 6 forum, not the iMovie HD forum for iMovie 5. There are fewer current iMovie 5 users here. Most were iM5 users, however, so someone might remember this problem.
Karl

Black frame in embedded quicktime movies in Keynote when exporting to quicktime movie

I've included some quicktime movies made in Photoshop in my Keynote presentation. When viewing the Keynote presentation from within keynote, the movie play perfectly. However when I export the presentation to a Quicktime move, the first or last frame of the embedded movie is black creating a flicker effect on play.
The quicktime movies have been embedded as loopable animations using the animation build in function 'Start movie' (after transition with 0 delay).
Is there a setting that will prevent the black frame on export or is this a bug?

Trim out the frames in a video editing application, Quicktime, iMovie

IMovie - adding a picture (without black frame below) in the very bottom of a video

Hello iMoviers,
I'd like to add a picture on top of a movie. As far as I understand this can be done by using iMovie's picture-in-picture feature. The picture, however, is centered in a black frame.
1) How can I position the picture on the ver bottom of the video, so that there's no black frame below or let's say the picture is not centered anymore?
2) How can I get rid of the black frames and instead have the video placed below shining through? I saw some green screen approaches, but it seemed to be very tedious workaround.
Thanks so much for any helpful comments,
mikkolaus

depends on the version of iM you're using:
in older versions, the pic-in-pic was limited: it allowed only to insert content with the same aspect-ratio as the project itself = 16.9 .... if the pic was square, iM added 'borders' to make it fit.
Work-around:
make your pics 16:9 by adding transparency, read this in the UseR Tipp section of this board:
How to create a pointer or a custom title
or, update to latest iMovie10 ....
here, a diff. aspect ratio of pic has no 'borders' -effect; .....

Soft shadows around photos on a particular website appear as heavy black frames in Firefox 5.0 although they look like proper shadows in Firefox 4.0 and in other browsers. How can I get the shadows to display correctly??

The shadow effect on two sides of the photos on this site looked fine in Firefox 4.0. When I upgraded to 5.0, the heavy black "frames" appeared in place of the shadows. No change had been made to the website between the time I looked at it in 4.0 and 5.0 (I know because I know the builder of the site). Indeed, it was only about an hour between my two viewings. So I figure the odd appearance has to have something to do with 5.0. But what? Is this fixable? Or do I need to wait for 5.1?

That is either a bug in Firefox 5 or the script has a problem with Firefox 5.<br />
It works in all other Firefox versions like Firefox 3 and 4 and 6 (Aurora) and 7 (Nightly).

Single Black Frame

Similar Messages

Maybe you are looking for