Questions tagged [ios]
The operating system used by Apple's mobile devices such as the iPad, iPhone and iPod Touch.
21 questions
0 votes
1 answer
324 views
Proper timestamps for videos
I am trying to combine a set of videos from different people and therefore from different smartphones into a single folder of files, so that they can be viewed together in a chronological order. For ...
- 101
0 votes
1 answer
2k views
FFMPEG: Video format replacement for webm (alpha channel)
I am currently creating a webm file using two mp4's (alpha - black background, white silthoette) and normal video. Using following ffmpeg command: ffmpeg -i color.mp4 -i alpha.mp4 \ -...
- 101
1 vote
1 answer
3k views
Converting Video from 30 fps to 29.97fps so Audio Syncs to Other 29.97fps Videos with ffmpeg
I have three videos that I am trying to sync so I can setup a multi-camera editing project (I'm using Vegas Pro) Two are at 29.97fps and one is at 30fps. If I manually sync them all at the start, by ...
- 113
2 votes
1 answer
355 views
A specific MP4 file is not playable with avfoundation in iOS
I have an mp4 video file that I want to play it in iOS using avfoundation. Unfortunately, the file is not being played and save into the default gallery (photos) even it has h264 video codec and aac ...
- 121
3 votes
1 answer
6k views
iOS - App To Change Aspect Ratio of a Video
I'm a new iOS user, and previously on my Android device, from time to time I needed to change the aspect ratio of a video to 1:1 (to fit with Instagram). So at that time, I was using this app that ...
- 33
1 vote
0 answers
53 views
Optimal render settings for embedding iOS video in an app
I've created some videos for an iOS app and am rendering them through Adobe Media Encoder 2017. These videos are then being played in app through iOS AVPlayer. What render settings are best for ...
- 113
3 votes
1 answer
57k views
How can I specify time for text titles in iMovie for iOS
I have iMovie on my iPhone 5S so my question is specifically for iMovie on iOS. I am trying to put together a video and want to add a text object to it. However, I want it to begin X seconds into the ...
- 141
2 votes
2 answers
731 views
Fast forward the timelapse vedio clip
I created a timelapse video from iMovie software and set the time to 0.1 second for every image. But the final output is not satisfying. It seems a bit slow video. I need the clouds to move faster, ...
