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41 lines
1.6 KiB
41 lines
1.6 KiB
2 years ago
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//
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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 嗨，我是曾宪华(@xhzengAIB)，曾加入YY Inc.担任高级移动开发工程师，拍立秀App联合创始人，热衷于简洁、而富有理性的事物 QQ:543413507 主页:http://zengxianhua.com 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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