avplayer | 一个基于FFmpeg、libtorrent的P2P播放器实现
kandi X-RAY | avplayer Summary
kandi X-RAY | avplayer Summary
一直以来, 在多媒体播放器这块, 即使目前有许多开源的播放器项目, 但要写一个播放器仍然是件非常困难的事, 如果在windows上你有可能需要熟悉DShow, 另外的话, 你需要学习一堆开源项目(比如FFmpeg, MPC, VLC, Mplayer), 而且多数都是基于linux, 在windows上学习起来很不容易, 然而这些开源项目对于一些希望快速实现自己播放器, 就显得很困难. 因此, 我创建了这个项目, 致力于以最简单的方法实现自己的播放器, 并提供一个可以很方便使用的接口. 目前, 在这个代码中, 主要链接到FFmpeg来进行解码, 并将其改造成一个通用的播放器框架. 在这个框架中能够接受各种数据的读入, 可以很方便的封装自己的数据读取模块, 也可以很方便的定制自己的视频渲染模块和音频播放模块, 你只需要参考其中的实现即可. 另外在当前的实现中, 因为个人精力实在有限, 所以借鉴了一些开源项目的代码(如Mplayer), 并且该代码跨平台(目前在linux平台的实现稍简单). 所以, 我希望有朋友能参与到这个项目中一起研究和学习, 并完成这个目标.
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QUESTION
I have found the code for an OObject
that serves me as a basic audio player (with a slider)
Works fine , however i can use it so far in the ContentView
like this :
ANSWER
Answered 2021-Jun-14 at 19:54In a non-SwiftUI situation, I'd normally recommend making player
an optional and loading it later, but, as you've probably discovered, you can't make an @ObservedObject
or @StateObject
optional.
I'd recommend refactoring AudioPlayerAV
so that it does the important work in a different function than init
. That way, you're free to load the content at whatever point you want.
For example:
QUESTION
I'm using the following code in my project and it works great.
But I need to know if its possible to play the video in full screen when the user taps on a button or any other action.
This is my code:
...ANSWER
Answered 2021-Jun-04 at 09:10Here's how I managed to do it. I hope this helps someone else in the future.
This is a rough idea but it works as it was intended to.
Basically, I've put the VideoPlayer in a VStack and gave it a full width and height.
I gave the VStack a set height and full width.
I gave the VStack a tapGesture and changed its width and height on double tap and this way, all its content (VideoPlayer) will resize accordingly.
This is the code:
QUESTION
The use-case is that I want the user to be able to preview a song hosted at a remote URL. Fine, you say, just use AVPlayer. Yes, but I want to be able to cache the file locally if it is completely downloaded in the course of being previewed. As far as I can tell, there's no way to access the local data that AVPlayer downloads for its streaming playback. Likewise, there's no way to get access to the data being downloaded by URLSession until it is completely downloaded. So, I'd like to find a result using one of these approaches:
- Access the data in AVPlayer once it has completed downloading it and save to a file.
- Download the data progressively to the cached URL and have AVPlayer play it as enough data becomes available.
Are either of these scenarios possible? Is there some other scenario which will achieve what I am looking to do?
...ANSWER
Answered 2021-Jun-01 at 16:08So the solution to this came from the AlamoFire
source code. If you use a URLSessionDataTask
in the traditional, non-combine way and have a controller conforming to URLSessionDataDelegate
, then you can implement the urlSession(_:dataTask:didReceive:)
protocol method to receive the data as it arrives, rather than waiting to receive it at completion. This allows you to directly write the data to a file of your choosing that is completely under your app's control.
QUESTION
Because I'm playing videos in cells I have an AVPlayer that plays videos in certain circumstances immediately and others it runs a few seconds later. When it runs immediately the .status
works fine. But when I wrap it in a DispatchWorkItem
with a .asyncAfter
delay that same exact .status
is never called. I also tried to use a perform(_:, with:, afterDelay:)
and a Timer
but this didn't work either.
ANSWER
Answered 2021-May-27 at 10:28Can you try to change the forKeyPath
parameter value to #keyPath(AVPlayerItem.status)
QUESTION
I have a two-file project for a podcast player application. My goal is when the user clicks the Play Button (loaded in nib cell), there will be shown PodcastPlayerView (added to StoryBoard in View Controller) with play/pause.
...ANSWER
Answered 2021-May-25 at 14:46Problem is here
QUESTION
I am building a radio streaming app. The sound is working, including when the app is in the background and when the phone is locked. However, I can't get the MediaPlayer info to appear on the lock screen.
I am attempting to use a combination of AVPlayer
, AVAudioSession
, and MPNowPlayingInfoCenter
. I have looked at other questions on Stack Overflow (this one, especially), but it seems like their solutions aren't working for me.
I will try to lay out the important aspects of my app:
Info.plist
Added Required background modes: App plays audio or streams audio/video using AirPlay
AppDelegate.swift
I added the following code to didFinishLaunchingWithOptions
ANSWER
Answered 2021-May-12 at 07:39Your code looks fine and you don't need the first responder stuff.
Put a breakpoint on your AVAudioSession
configuration and make sure it's actually being called or check that its log output is present.
Make sure your audio is working in the background by locking the screen and listening.
You also need to actually be playing audio to influence the now playing info screen.
QUESTION
ANSWER
Answered 2021-May-14 at 20:13Add the following ode just at the beginning of OnAppear
,
Your code would look like this:
QUESTION
I am trying to make a video automatically play without any control buttons when a button is pressed and then after the video is done playing do the rest of the button actions.
I can get the video to play if I put it above the ZStack, but when I try to make it play after hitting a button inside the ZStack, then I get an error that says "Result of 'VideoPlayer' initializer is unused" on the line where VideoPlayer is.
...ANSWER
Answered 2021-May-13 at 16:56Regarding the VideoPlayer
and loading different content for it, you need to put the VideoPlayer
inside the view hierarchy. Right now, you have it inside the Button
's action, which means that even if you didn't have a compiler error, it would show up in your view.
Here's some code that loads different AVPlayer
s based on the state of number
and autoplays the video:
QUESTION
I'm a beginner in swift my problem is this:
-I need to play a .MP4 video in my ios swift app - the server needs authentication
let myVideoUrl = "playmyvidmp4123.org" [as an example]
when I put myVideoUrl in a web browser a pop up appears and asks you to put in your username and password (authentication) so I put in my credentials:
User: "sherry" pass: "789"
then the video starts downloading
How do I play these links in my app? I use alamofire for networking, so I use .Authenticate however how do I pass the data to AVPlayer/ somme player to play the video and allow for scrubbing as well
There was a technique I did before, whereby when I get the data, I convert DATA to UIImage and then display the UIImage in my image view and constantly refresh the img by timers and it plays (there is no scrubbing functionality in it either)
I do not know how to authenticate the server with the stock inbuilt method either i.e. without using alamofire. So please if someone knows, how may I accomplish this task - A code snippet would be much appreciated in which I can plug my creds, & link and test it out
...ANSWER
Answered 2021-May-01 at 09:25Try to format your URL to video this way https://user:pass@url
=> https://sherry:789@playmyvidmp4123.org
QUESTION
I am using a videoview from https://github.com/Baseflow/XamarinMediaManager ,it works perfectly fine. I want audio to be continued played when the app goes in background or screen is locked, that can be achieved using the method given in this link https://developer.apple.com/documentation/avfoundation/media_playback_and_selection/creating_a_basic_video_player_ios_and_tvos/playing_audio_from_a_video_asset_in_the_background
So I followed it as you can see my codes. I am getting currently PlayerViewController and AVPlayer and connecting and disconnecting them as done in the given class.
...ANSWER
Answered 2021-Apr-21 at 13:58Looks like the bug in your code with deallocation CurrentAVPlayer
on entering background in DisConnect
method and it should be:
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