avfoundation
Cap frame rate or bit rate in AVAssetExportSession?
I\'m using AVAssetExportSession to export some stuff at 640x480, and the files are kind of monstrous -- predictably monstrous, but still monstrous, given that we need to upload them from the phone ove[详细]
2023-03-11 10:53 分类：问答Playing many different videos on iphone using AVPlayer
I\'m working on a custom video player for iOS using AVFoundation. The idea is to be able to switch to a different video with a gesture (tap, swipe, whatever). Right now the player is working flawlessl[详细]
2023-03-11 07:54 分类：问答iPhone App - Show AVFoundation video on landscape mode
I am using the AVCam example App from Apple. This example uses AVFoundation in order to show video on a view.[详细]
2023-03-11 04:09 分类：问答Caching with AVPlayer and AVAssetExportSession
I would like to cache progressive-download videos using AVPlayer. How can I save an AVPlayer\'s item to disk? I\'m trying to use AVAssetExportSession on the player\'s currentItem (which is fully loade[详细]
2023-03-11 01:50 分类：问答iPhone change background if allowsAirPlay is true
What I am trying to achieve is an if statement which finds out if AirPlay is enabled or not. I know that the property is allowsAirPlay and that it comes from MPVolumeView. But I am stuck from here on[详细]
2023-03-10 17:22 分类：问答Play multiple Audio Files with AVPlayer
I\'m trying to play multiple sounds at the same time. The approach initially I\'ve taken was to create several players , but it seems wrong one.[详细]
2023-03-10 00:54 分类：问答How to get Bytes from CMSampleBufferRef , To Send Over Network
Am Captuing video usin开发者_如何学运维g AVFoundation frame work .With the help of Apple Documentation http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articl[详细]
2023-03-09 18:23 分类：问答I can't get AVAssetWriterInputPixelBufferAdaptor to export a small video
This code below will compile and run, but the AVAssetWriterInputPixelBufferAdaptor is returning NO when I try to appendBuffer:[详细]
2023-03-08 12:16 分类：问答How to convert to 16 bit pixel format for use in OpenGL ES 2.0 when reading frames from a video (AV Foundation)
I\'m using OpenGL to do some image processing on each frame of a 1280x720 quicktime video. The frames are then read back and a new video is created from these. The problem is the large amount of data[详细]
2023-03-08 10:19 分类：问答AVPlayer Reverse Playback
How would one go about getti开发者_JAVA技巧ng an AVPlayer object to play its video content in reverse? The AVPlayerItem class has a property called \"reversePlaybackEndTime,\" which makes me think tha[详细]
2023-03-08 04:18 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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