I've had Quicktime Player 7 Pro for awhile now. Before I had no problems exporting movies I created in After Effects from Quicktime as an MP4 and playing them back. But now, when I open a movie I created in After Effects and export it out of Quicktime as an MP4, it has great audio, but only shows a white screen. What has happened?
Please help?
Quicktime-OTHER, Mac OS X (10.6.8)
A white player window means the video codec you chose isn't supported by QuickTime Player.
I have not changed anything on my computer. It has always worked using these same settings. It just one day began rendering a white screen. Did something change when I updated my software on my computer? Is there a new codec I need to get from Quicktime?
It's frustrating because it has worked for 2 years and now this option doesn't work. This is the only reason I updated to Pro. Any thoughts?
Open the file using QuickTime Player and then open the Movie Inspector window to find what codecs are used.
I think I figured it out. What I was doing was opening a MP4 I created in After Effects and rendering it out of Quicktime to a MP4 to make the file smaller. For some reason this doesn't work anymore.
But, if I render a mov in After Effects and then open that in QT and render it out to a MP4, it works fine. You know why this is?
Where do I find the codec being used in the Inspector window?
Format:
White Screen video rendered from MP4 to MP4 in QT:
H.264, 872 x 486, Millions
AAC, 2 channels, 44100 Hz
Working Video rendered from mov to MP4 in QT:
H.264, 872 x 486, Millions
AAC, 2 channels, 44100 Hz
Same. Weird.
It seems that only a limited number of screen resolutions is supported by QT pro. If you use another screen resolution, the video track is dropped (look at thre resulting file size) and the output is a white screen. To my experience, anyway...
Why when I export an MP4, I get a white screen?
