AVAssetWriter start写入问题
当我在 2G 设备上编写电影时，AVAssetWriter startWriting 返回 BOOL False 值，但对于所有其他设备，它返回 TRUE 值并且工作正常。任何人都遇到过这个问题，或者您知道为什么会发生这种情况，请帮助我
AVAssetWriter startWriting is returning BOOL False value when i'm writing movie on 2G device, but for all other devices its returning TRUE value and working fine.Anyone faced this problem or do you have any clue why its happening,help me please
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
我在 iPad 上的 startWriting 上收到错误消息，而它在我的 iPhone3 和 4（均具有 iOS 4.2）上均有效。写入器的状态为失败，NSError 为：“操作无法完成。（AVFoundationErrorDomain 错误 -11800）。”
使用文件类型创建时，编写器的创建没有产生错误：AVFileTypeQuickTimeMovie，并且该文件尚不存在。我还尝试使用不同的像素缓冲区像素格式但无济于事。最后，我再次尝试将视频类型更改为 MPEG4 和 M4V...但无济于事。
我将其发布在这里而不是创建新问题，因为它们都是相同的结果并且没有得到解决。我需要在几天内解决这个问题，所以如果我学到任何东西，我会发布我发现的内容。
I am receiving false on startWriting on an iPad, when it works on both my iPhone3 and 4 (all have iOS 4.2). The status of the writer is failed, with the NSError as: "The operation couldn't be completed. (AVFoundationErrorDomain error -11800)."
Creation of the writer yielded no error when creating with file type: AVFileTypeQuickTimeMovie, and the file did NOT already exist. I've also tried using different pixel buffer pixel formats to no avail. Lastly, I've tried changing the video type to MPEG4 and M4V...again, to no avail.
I'm posting this here instead of creating a new problem, as they both are the same result and is not addressed. I need to have this resolved w/in a few days, so if I learn anything, I'll post what I find.
最可能的原因是您运行的特定 iOS 设备不包含硬件 H264 编码器。我认为3GS之前的iPhone版本没有硬件，但我不确定iPad 1是否有H264编码硬件。我知道 iPad 2 确实有这个硬件。
The most likely cause is that the specific iOS device you are running on does not include the hardware H264 encoder. I think that versions of iPhone earlier than 3GS have no hardware, but I am not sure if the iPad 1 has H264 encoding hardware. I know iPad 2 does have this hardware.