压缩视频，如iOS的相机胶卷

Question

Background:

I am recording a video and then uploading it.

Problem:

I compressed the video using this solution (medium quality) but it doesn't:

• keep the original dimensions of the video
• have as good a compression ratio as camera roll's.

I need similar compression (size and dimensions) like camera roll. If it's not possible, do we have a workaround, say, automatically select the file from the iOS video picker (for upload)?

Answer 1

You can use AVAssetWriter and set custom compression settings. You can even compress the video while you're recording so you don't have to re-process the video before upload. Search around, there's tons of examples.