objective c - Issues while merging the videos using AVMutableComposition -


i have been working on merging of videos single video using avmutablecomposition , have got required output.but i'm getting 2 different types of issues while merging the videos.

1) couldn't set custom frames videos using avmutablevideocompositionlayerinstruction.

2) while playing merged video, first merged video been vanished(removed) after been stopped. other videos staying correctly after stopped in respective location.

please suggestion solution..

1) if want change frame merged video, should set avmutablevideocomposition render size

2) if play first , second video @ same time, duration of merged video biggest duration both videos, in case should handle difference,place kind of placeholder @ end of first video(can last frame of video)


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