I have a similar problem. Player is Quicktime 7.1.5
Frame Rate 25
computer is new Intel-based Mac Mini
Video playback is choppy and has green and purple artifacts. I tried playing it back with another program called VLC and it played fine. All other videos I have with the extension .avi play fine in Quicktime. Do I need to get a plug-in for Quicktime to play .mp4 files?
Intel Mac Mini Mac OS X (10.4.9)
Can you give a little more info on the video in question?
Fomat: .mov? My format is MP4; is that the same as .mov?
Codec: h.264? I could not locate this.
Size xy: 720 pixels by 480 pixels... size is 640 x 480
The video was made on a Sanyo Camcorder, Xacti VPCC 6
More info on you computer.
The computer it does not run on, the G-4, is 1.42 gh2 with 1GB DDR S DRAM
thanks for your thoughts
The relevant portions show:
Format: Apple MPEG4 Decompressor, 640x480 Millions
AAC, Stereo (LR), 48.000kHz
Playing FPS 22.96
Data Size 668.43 MB (just happened to be a big file, small ones have same problem
Data Rate: 3080.16 kbits/sec
Normal Size 640 x 480
One other comment. I had been trying with great difficulty to edit my videos with Imovie and my recollection is that is when I started having problems with the videos generally. I never attempted editing on my G-5 and never had any problems playing the raw video.
Not H.264 Video but the file has a very high data rate.
The one shows 29:97 as a frame rate yet you barely get 23 frames per second during playback.
Because your computer can't decode the file fast enough is the reason you're not getting the proper frame rate during playback.
Without a proper frame rate the video will appear choppy.
I have an ibook G3 14 inch 700mhz processor, 640 RAM. I can't get movies to play in quick time, but they play on the dvd player fine. In quick time, the video is very choppy and then stops while the audio goes for a little while longer until it eventually starts to get choppy. How would I be able to rip movies so that thay they are on my harddrive and play through the dvd player so that I can save some battery life?
ok makes sense, thanks. One last matter that still puzzles me. I was able to run these videos 8 or 10 months ago without problem. About 3 or 4 months ago, they stopped running smoothly, so I ignored it and used by
G-5, 1.8 gighz which worked fine. I tried again today on the G-4 after closing all the other applications and still have choppy video. Any idea what changed?