Check is the downloaded mp4 file is proparly downloaded to play. - iphone sdk

Question

I have developed the code for downloading the mp4 video from server. It does work perfectly sometime but sometime the video which is downloaded is not proper so its not playing. Sometime it that downloaded video is off just 2kb which is not the correct or might be not downloaded properly. So is there any way to check is the downloaded mp4 file is correct?

Thanks in advance.

Thanks Ankit for replay.. But can you please provide some more detail about it. may be link to any blog. — Satish, Apr 16 '12 at 09:18
Ankit, I should accept only the answer which are correct or the one which provide some correct path. what do you think? — Satish, Apr 16 '12 at 09:29
Hello Satish, Did you find some solution? I am also facing same issue. — Gagan_iOS, Jan 23 '14 at 06:51

score 1 · Answer 1 · edited May 23 '17 at 11:43

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I am not a iPhone developer, but I would suggest computing a checksum on the file downloaded and compare that to a checksum that can be requested from where the file is downloaded.

Check for instance Compute a checksum on the iPhone from NSData for a checksum example.

edited May 23 '17 at 11:43

Community

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answered Apr 16 '12 at 09:22

Jontas

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score 0 · Answer 2 · answered Mar 06 '19 at 19:21

I encountered a similar issue when using AVAssetExportSession to cache a video that was being streamed from the server. I solved this by using isPlayable on AVAsset. If the property returned false I would remove the cached video and stream it from the server instead. Hope this solves your problem.

Check is the downloaded mp4 file is proparly downloaded to play. - iphone sdk

2 Answers2