Questions tagged [ios]
The operating system used by Apple's mobile devices such as the iPad, iPhone and iPod Touch.
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What does the tag "-tag:v hvc1" means?
I am using FFMpeg to compress a video to X265/HEVC. When I am doing it normally the converted video doesn't working on iPhone or iPad. But while I am using the tag - "-tag:v hvc1" in the ...
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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
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What frame rate is the iOS camera aiming for when it shoots 24fps VFR?
Almost every time we deal with footage that was shot on an iOS device in a post production workflow, we find it's Variable Frame Rate (aka VFR) rather than Constant Frame Rate (CFR). The hardware ...
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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 ...
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editing video (overlaying text) using AVfoundation is resulting weird behaviour in video
Whenever I move the pointer you can see video getting weird pixelation.
Complete video showing how it behaves in quicktime player: https://jmp.sh/TMaknmp
I am just applying overlay using ...
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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
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FFmpeg to create HLS and replace (stitch) segments
I need to create multiple copies of a source video file stamped with a logo. Also, each copy is overlaid with a unique version number, intermittently appearing throughout the video.
Since I’m ...
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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 ...
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mpeg-dash playback on ios
I have created my dash videos with mp4box and ffmpeg. it plays fine on exo player and videoJS on android and all browsers, but it doesn't play on ios 10 safari. how can I make it playable on ios and ...
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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 ...
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What is the best tool for creating simple iOS demo videos
I need to create some simple video tutorials for an iOS app. The tutorials will consist largely of screen footage showing the app being used with voice over and some titles. I know how to capture the ...
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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 ...
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In Windows, how do I find the geotags for videos shot in iOS?
I have footage shot with the stock iPhone Camera app (5S running iOS 8.x). Inside iOS Photos, I can see the geo coordinates where each video was shot. However, I don't know how to get at that ...
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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, ...
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which file format to use for the ios app tutorial which should be embedded inside the app?
we have developed ios application, and now stacked at tutorial preparations , google does not helped too much.
Our issue is the following : what format will allow us to have the most size-wise ...
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Do any iOS video apps record in log color space?
Is there an app for iPhone or iPad that will let me record log color space video? It seems like with such an abundance of instagram-ish "filter" apps, developers probably have access to raw sensor ...
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Http Live Streaming for beginners
I'm new to live streaming and it's quite hard to find good information for beginners. Could anyone recommend resources to HLS besides Apple's documentation?
I'm trying to make an app similar to ...
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FFMpeg and HLS, videos need to load in their entirety before they start playing
I am using ffmpeg to generate a segmented list of files in order to stream them to an iOS app. The list of files is generated fine but when it comes time to play them, the video needs to be downloaded ...
- 161
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iOS 8 Video Editing App That Lets You Hear The Audio While Trimming?
I'm interested in making perfectly-looping Vine videos of me playing guitar riffs. I'd like to shoot and edit these videos on my phone (iPhone 5, iOS 8.1), without using a desktop editor. Is there an ...
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Format to view on iOS and PS3?
I have Apple Compressor and have been trying to determine the correct format for my videos to allow them to play on both the iPad and my PlayStation 3 via a Media Server. Can anyone help me to ...
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