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40 lines
1.5 KiB
40 lines
1.5 KiB
// |
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// XHMessageVideoConverPhotoFactory.m |
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// MessageDisplayExample |
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// |
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// Created by HUAJIE-1 on 14-5-9. |
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// Copyright (c) 2014年 曾宪华 开发团队(http://iyilunba.com ) 本人QQ:543413507 本人QQ群（142557668）. All rights reserved. |
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// |
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#import "XHMessageVideoConverPhotoFactory.h" |
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#import <AVFoundation/AVAsset.h> |
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#import <AVFoundation/AVAssetImageGenerator.h> |
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#import "XHMacro.h" |
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@implementation XHMessageVideoConverPhotoFactory |
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+ (UIImage *)videoConverPhotoWithVideoPath:(NSString *)videoPath { |
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if (!videoPath) |
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return nil; |
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AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:[NSURL fileURLWithPath:videoPath] options:nil]; |
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NSParameterAssert(asset); |
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AVAssetImageGenerator *assetImageGenerator = [[AVAssetImageGenerator alloc] initWithAsset:asset]; |
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assetImageGenerator.appliesPreferredTrackTransform = YES; |
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assetImageGenerator.apertureMode = AVAssetImageGeneratorApertureModeEncodedPixels; |
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CGImageRef thumbnailImageRef = NULL; |
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CFTimeInterval thumbnailImageTime = 0; |
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NSError *thumbnailImageGenerationError = nil; |
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thumbnailImageRef = [assetImageGenerator copyCGImageAtTime:CMTimeMake(thumbnailImageTime, 60) actualTime:NULL error:&thumbnailImageGenerationError]; |
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if (!thumbnailImageRef) |
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DLog(@"thumbnailImageGenerationError %@", thumbnailImageGenerationError); |
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UIImage *thumbnailImage = thumbnailImageRef ? [[UIImage alloc] initWithCGImage:thumbnailImageRef] : nil; |
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CGImageRelease(thumbnailImageRef); |
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return thumbnailImage; |
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} |
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@end
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