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首先来看一下我们将视频数据塞给请求的代码
- (void)finishLoadingWithLoadingRequest:(IdiotResourceTask *)task {// printf(哈哈执行到这里执行到到这里\n);printf(哈哈哈数量数量%ld\n, self.taskList.count);//填充信息task.loadingRe…代码现状
首先来看一下我们将视频数据塞给请求的代码
- (void)finishLoadingWithLoadingRequest:(IdiotResourceTask *)task {// printf(哈哈执行到这里执行到到这里\n);printf(哈哈哈数量数量%ld\n, self.taskList.count);//填充信息task.loadingRequest.contentInformationRequest.contentType video/mp4;task.loadingRequest.contentInformationRequest.byteRangeAccessSupported YES;task.loadingRequest.contentInformationRequest.contentLength task.resource.fileLength;if (task.resource.fileLength 0) {NSLog(requestTask.fileLength 0);}printf(哈哈哈1111执行执行执行%lld点 %lld 一 %lld %p %p\n, task.loadingRequest.dataRequest.requestedOffset,task.loadingRequest.dataRequest.currentOffset, task.resource.requestOffset, task.loadingRequest, task);//读文件填充数据long long cacheLength task.resource.cacheLength;long long requestedOffset task.loadingRequest.dataRequest.requestedOffset;if (task.loadingRequest.dataRequest.currentOffset ! 0) {requestedOffset task.loadingRequest.dataRequest.currentOffset;}if (requestedOffset task.resource.requestOffset) {/*这里是说明视频请求对象的offset小于当前任务的resouce 的offset注意task.resouce,是一开始播放创建的resouce或者拖拽之后创建的resouce即一段连续不中断的资源对应一个resouce,如果当前当前视频请求的offset小于task.resouce.offset,说明该resouce 和当前request没有重合部分要返回注意这里不能加上 请求的.dataRequest.requestedLength 然后和task.resouce.requestoffset比较因为填充数据要从请求的开头就是offset开始填充*/printf(哈哈哈返回111111 \n);return;}long long paddingOffset requestedOffset - task.resource.requestOffset;long long canReadLength cacheLength - paddingOffset;if (canReadLength 0) {printf(哈哈哈返回222222 %lld\n, canReadLength);return;}long long respondLength MIN(canReadLength, task.loadingRequest.dataRequest.requestedLength);NSFileHandle * handle [IdiotFileManager fileHandleForReadingAtPath:task.resource.cachePath];[handle seekToFileOffset:paddingOffset];[task.loadingRequest.dataRequest respondWithData:[handle readDataOfLength:[[NSNumber numberWithLongLong:respondLength] unsignedIntegerValue]]];
// printf(哈哈哈匹配到匹配到的长度%lld %lld %lld %lld %lld\n,respondLength,task.loadingRequest.dataRequest.requestedLength, task.loadingRequest.dataRequest.requestedOffset, task.loadingRequest.dataRequest.currentOffset, task.resource.requestOffset);[handle closeFile];//如果完全响应了所需要的数据则完成long long nowendOffset requestedOffset canReadLength;long long reqEndOffset task.loadingRequest.dataRequest.requestedOffset task.loadingRequest.dataRequest.requestedLength;printf(哈哈哈哈差别差别%lld\n,reqEndOffset - nowendOffset);if (nowendOffset reqEndOffset) {[task.loadingRequest finishLoading];printf(哈哈哈主动删除%lld %lld %p\n,nowendOffset, reqEndOffset, task);[self removeLoadingRequest:task.loadingRequest];return;}}
遇到的问题
拖拽之后的操作 - (void)seekToTime:(NSTimeInterval)time completionHandler:(void (^ __nullable)(BOOL finished))completionHandler {if (self.totalTime 0) {CMTime seekTime CMTimeMake(time, 1);WEAKSELF[_player seekToTime:seekTime toleranceBefore:kCMTimeZero toleranceAfter:CMTimeMake(1, 1) completionHandler:^(BOOL finished) {// 视频跳转回调[weakSelf play];} else {self.seekTime time;}
}
操作之后的结果发现视频不能播放了 查看执行的流程如下 后来经过多次调试发现是我们seek的时候没有暂停造成原来的请求还在就会获取一个offset很小的请求从而移除拖动之后的请求造成无法播放
解决方法
修改之后的代码 就是seek之前 pause
- (void)seekToTime:(NSTimeInterval)time completionHandler:(void (^ __nullable)(BOOL finished))completionHandler {self.resourceLoader.seek YES;if (self.totalTime 0) {[self.player pause];CMTime seekTime CMTimeMake(time, 1);WEAKSELF[_player seekToTime:seekTime toleranceBefore:CMTimeMake(1,1) toleranceAfter:CMTimeMake(1,1) completionHandler:^(BOOL finished) {[weakSelf play];}];} else {self.seekTime time;}
}表现
拖拽之后视频可以正常播放
