Close the video buffer after using it in iOS #89
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If the buffer is not closed, I believe a memory leak is occurring, and GC runs frequently (once every a few seconds in the device I tested, iPhone 7). Empirically, I tried using "close" and also "release". The first one did the trick. This change is also based on the documentation that mentions the buffer should be released after use: https://developer.apple.com/documentation/avfoundation/avplayeritemvideooutput/1386148-copypixelbufferforitemtime#return_value
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If the buffer is not closed, I believe a memory leak is occurring, and GC runs frequently (once every a few seconds in the device I tested, iPhone 7).
Empirically, I tried using "close" and also "release". The first one did the trick.
This change is also based on the documentation that mentions the buffer should be released after use: https://developer.apple.com/documentation/avfoundation/avplayeritemvideooutput/1386148-copypixelbufferforitemtime#return_value