Known issues for playing 3gp videos in the AVPlayer framework? - ios

Are there any known issues with AVPlayer not playing a 3gp file on device? mp4 files play fine, but playing a 3gp file back from a URL on the device isn't happening.
Thanks!
If it matters I'm on iOS 9 Swift 3.

AVPlayer or AVPlayerViewController can play only 3gp files that have audio and video streams that are supported by Apple.
For example, 3gp file can have AMR audio stream(Adaptive Multi-Rate, a format for speech) - which is not supported since iOS 4.3

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Can make the camera plugin support h264 encoding on ios

The video I recorded on the iphone using the camera plug-in is h265 encoded and cannot be played on Android. Can the video recorded on the ios also be h264 encoded? I tried to solve this problem myself, the following is my code, Can it be merged into the camera plug-in, or when shooting video, support parameter setting encoding format?
enter image description here

MP4 playback issue on iPad

I played 320x180 resolution mp4 file (video encoded using h264 baseline profile) on iPad mini which has iOS 6.1.3 with default video player. I observed that green strip is coming at the bottom while playback (screen shot attached below).
Later I played same 320x180 mp4 file on iPad mini which has iOS 7.0.4. The video was playing fine. Same 320x180 mp4 file playing fine on MAC also.
Can I know why I am getting green strip at the bottom while playing mp4 file on iPad mini which is having iOS 6.1.3?

View uploaded video in iOS app

I have a bunch of videos uploaded to google drive. They are in mpeg4 (avi) format I believe. I have tried everything I can think to view the video in a MPMoviePlayerViewController. In the simulator the video player launches and looks like it playing, but I don't see any video. When I run it on my device the player won't launch. I have tried to use the downloadUrl, alternateLink, embedLink and webContentLink with no success.
Is it possible to stream video from Google Drive to iOS?
The simulator isn't a full blown emulator, but just a simulator. It uses similar frameworks from Mac OS, which may have different functionality than on iOS. In other words, the simulator may have more capabilities than an actual device.
The MPMoviePlayerController class on iOS supports only a few containers and codecs, and does not support AVI.
Supported Formats
This class plays any movie or audio file supported in iOS. This
includes both streamed content and fixed-length files. For movie
files, this typically means files with the extensions .mov, .mp4,
.mpv, and .3gp and using one of the following compression standards:
H.264 Baseline Profile Level 3.0 video, up to 640 x 480 at 30 fps. (The Baseline profile does not support B frames.)
MPEG-4 Part 2 video (Simple Profile)
If you use this class to play audio files, it displays a white screen
with a QuickTime logo while the audio plays. For audio files, this
class supports AAC-LC audio at up to 48 kHz, and MP3 (MPEG-1 Audio
Layer 3) up to 48 kHz, stereo audio.

What is the maximum video/movie resolution for iPad 3 (retina)?

For some reason, when I try to play a video that is 1536x2048 on the ipad 3, it doesn't play the video, it just skips it. I've checked that the URL for the video is correct. I'm using MPMoviePlayerController. I tried playing the same video on an ipad also and it does the same thing. It just acts like it ignored the "play" line of code.
Is there a maximum supported video resolution then?
According to MPMoviePlayerController reference I'd say that this can answer you:
Supported Formats
This class plays any movie or audio file supported in iOS. This includes both streamed content and fixed-length files. For movie files, this typically means files with the extensions .mov, .mp4, .mpv, and .3gp and using one of the following compression standards:
H.264 Baseline Profile Level 3.0 video, up to 640 x 480 at 30 fps. (The Baseline profile does not support B frames.)
MPEG-4 Part 2 video (Simple Profile)
If you use this class to play audio files, it displays a white screen with a QuickTime logo while the audio plays. For audio files, this class supports AAC-LC audio at up to 48 kHz, and MP3 (MPEG-1 Audio Layer 3) up to 48 kHz, stereo audio.

3gp video and AVPlayer in iPhone

I have an iPhone application that plays the videos of Camera Roll using AVPlayer. I have a 3gp video in my iPhone which I am not able to play using AVPlayer but can be played in Photos app.
I would like to achieve these:
The videos that are not valid as per AVFoundation classes should not be listed in my views that shows Camera Roll videos using ALAsset Library.
Is there any API related to AVURLAsset, AVAssetTrack etc that identifies if the video is playable or not.
I have tried the following:
playable property of AVURLAsset says that it is playable.
The duration of this videos can be obtained

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