问题
When you use iTunes to sync your videos with the iPhone the videos are always saved with no more than 640 pixels wide, if I am not wrong.
What about the iPad? What is the size of videos iTunes syncs with iPad? 1024x768? and what if the video has a dimension below 1024x768? Will it scale up? or will it keep the video at low res and scale when you play?
The question is because I am using the MPMoviePlayerController and I need to know what resolutions to expect, so I can adjust the interface.
thanks.
回答1:
From the MPMoviePlayerController docs:
Supported Formats
This class supports any movie or audio files that already play correctly on an iPod or iPhone. This includes both streamed content and fixed-length files. For movie files, this typically means files with the extensions .mov, .mp4,.mpv, and .3gp and using one of the following compression standards:
1. H.264 Baseline Profile Level 3.0 video, up to 640 x 480 at 30 fps. (The Baseline profile does not support B frames.)
2. MPEG-4 Part 2 video (Simple Profile)
If you use this class to play audio files, it displays a white screen with a QuickTime logo while the audio plays. For audio files, this class supports AAC-LC audio at up to 48 kHz, and MP3 (MPEG-1 Audio Layer 3) up to 48 kHz, stereo audio.
And yes, you can scale up to fit your view or go full screen, same as on iPhone.
来源：https://stackoverflow.com/questions/2719214/what-are-the-video-formats-supported-by-mpmovieplayercontroller-on-the-ipad