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2014/10/15 ¤U¤È 10:04:29

iphone Programming Glossary: avmutablecomposition

How can I add overlay text on a video, then re-encode it?

http://stackoverflow.com/questions/10190333/how-can-i-add-overlay-text-on-a-video-then-re-encode-it

videoName ofType ext AVURLAsset videoAsset AVURLAsset alloc initWithURL NSURL fileURLWithPath filePath options nil AVMutableComposition mixComposition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack mixComposition addMutableTrackWithMediaType.. videoAsset AVURLAsset alloc initWithURL NSURL fileURLWithPath filePath options nil AVMutableComposition mixComposition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack mixComposition addMutableTrackWithMediaType AVMediaTypeVideo.. NSURL fileURLWithPath filePath options nil AVMutableComposition mixComposition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack mixComposition addMutableTrackWithMediaType AVMediaTypeVideo preferredTrackID kCMPersistentTrackID_Invalid..

How can I overlap audio files and combine for iPhone in Xcode?

http://stackoverflow.com/questions/12628554/how-can-i-overlap-audio-files-and-combine-for-iphone-in-xcode

share improve this question Here's what I did in my app. void setUpAndAddAudioAtPath NSURL assetURL toComposition AVMutableComposition composition AVURLAsset songAsset AVURLAsset URLAssetWithURL assetURL options nil AVMutableCompositionTrack track composition.. toComposition AVMutableComposition composition AVURLAsset songAsset AVURLAsset URLAssetWithURL assetURL options nil AVMutableCompositionTrack track composition addMutableTrackWithMediaType AVMediaTypeAudio preferredTrackID kCMPersistentTrackID_Invalid AVAssetTrack.. ok track insertTimeRange tRange ofTrack sourceAudioTrack atTime CMTimeMake 0 44100 error error IBAction saveRecording AVMutableComposition composition AVMutableComposition composition audioMixParams NSMutableArray alloc initWithObjects nil IMPLEMENT FOLLOWING..

How to add audio to video file on iphone SDK

http://stackoverflow.com/questions/3440266/how-to-add-audio-to-video-file-on-iphone-sdk

SDK I have a video file and an audio file. Is it possible to merge it to one video with with sound file. I think AVMutableComposition should help me but I still dont understand how. any advices iphone audio video encoding share improve this question .. alloc initWithURL audioUrl options nil AVURLAsset videoAsset AVURLAsset alloc initWithURL videoUrl options nil AVMutableComposition mixComposition AVMutableComposition composition AVMutableCompositionTrack compositionCommentaryTrack mixComposition addMutableTrackWithMediaType.. nil AVURLAsset videoAsset AVURLAsset alloc initWithURL videoUrl options nil AVMutableComposition mixComposition AVMutableComposition composition AVMutableCompositionTrack compositionCommentaryTrack mixComposition addMutableTrackWithMediaType AVMediaTypeAudio..

AVFoundation + AssetWriter: Generate Movie With Images and Audio

http://stackoverflow.com/questions/5640657/avfoundation-assetwriter-generate-movie-with-images-and-audio

for them and the adaptor and input settings etc If this approach might cause a problem guide me about how to use a AVMutableComposition to use the image array for video export iphone avfoundation avassetwriter avmutablecomposition share improve this question.. Here is the code void addAudioToFileAtPath NSString filePath toPath NSString outFilePath NSError error nil AVMutableComposition composition AVMutableComposition composition AVURLAsset videoAsset AVURLAsset URLAssetWithURL NSURL fileURLWithPath filePath.. addAudioToFileAtPath NSString filePath toPath NSString outFilePath NSError error nil AVMutableComposition composition AVMutableComposition composition AVURLAsset videoAsset AVURLAsset URLAssetWithURL NSURL fileURLWithPath filePath options nil AVAssetTrack videoAssetTrack..

Make movie file with picture Array and song file, using AVAsset

http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset

After that you must put together movie file and audio file. To do this follow my code void CompileFilesToMakeMovie AVMutableComposition mixComposition AVMutableComposition composition NSString audio_inputFileName @ deformed.caf NSString audio_inputFilePath.. movie file and audio file. To do this follow my code void CompileFilesToMakeMovie AVMutableComposition mixComposition AVMutableComposition composition NSString audio_inputFileName @ deformed.caf NSString audio_inputFilePath Utilities documentsPath audio_inputFileName.. initWithURL video_inputFileUrl options nil CMTimeRange video_timeRange CMTimeRangeMake kCMTimeZero videoAsset.duration AVMutableCompositionTrack a_compositionVideoTrack mixComposition addMutableTrackWithMediaType AVMediaTypeVideo preferredTrackID kCMPersistentTrackID_Invalid..

How to combine video clips with different orientation using AVFoundation

http://stackoverflow.com/questions/6575128/how-to-combine-video-clips-with-different-orientation-using-avfoundation

I am trying to combine several video clips into one using AVFoundation. I can create a single video using AVMutableComposition using the code below AVMutableComposition composition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack.. video clips into one using AVFoundation. I can create a single video using AVMutableComposition using the code below AVMutableComposition composition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack composition addMutableTrackWithMediaType.. I can create a single video using AVMutableComposition using the code below AVMutableComposition composition AVMutableComposition composition AVMutableCompositionTrack compositionVideoTrack composition addMutableTrackWithMediaType AVMediaTypeVideo preferredTrackID..

Setting AVMutableComposition's frameDuration

http://stackoverflow.com/questions/9725193/setting-avmutablecompositions-frameduration

AVMutableComposition's frameDuration I'm playing with the AVEditDemo project from Apple's WWDC 2010 sample pack and I'm trying to change the.. WWDC 2010 sample pack and I'm trying to change the frame rate of the exported video. The video is exported using an AVMutableComposition on which the frameDuration is set like that videoComposition.frameDuration CMTimeMake 1 30 30 fps For some reason changing..