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Trending Discussions on Video Sharing

How do you allow very large files to have time to upload to firebase before iOS terminates the task?

FFmpeg best LGPL alternative to libx264?

How do I write into a CSV file without removing anything in it in Python?

AWS RDS MySQL approximately 8 million rows

How to save cloud space in Firebase

Merge one audio file and one image file to create a video with ffmpeg

How to link user information of firebase_auth with files uploaded to other databases

How do I make a link that embed the video player below the link

Flutter SDK IOs Privacy

How to use this cordova plugin

How do you allow very large files to have time to upload to firebase before iOS terminates the task?

FFmpeg best LGPL alternative to libx264?

How do I write into a CSV file without removing anything in it in Python?

AWS RDS MySQL approximately 8 million rows

How to save cloud space in Firebase

Merge one audio file and one image file to create a video with ffmpeg

How to link user information of firebase_auth with files uploaded to other databases

How do I make a link that embed the video player below the link

Flutter SDK IOs Privacy

How to use this cordova plugin

QUESTION

How do you allow very large files to have time to upload to firebase before iOS terminates the task?

Asked 2021-Dec-27 at 06:04

I have a video sharing app, and when you save a video to firebase storage it works perfectly for videos that are roughly 1 minute or shorter.

The problem that I am having, is when I try to post a longer video (1 min or greater) it never saves to firebase.

The only thing that I can think of is this error that I am getting, and this error only shows up about 30 seconds after I click the save button:

[BackgroundTask] Background Task 101 ("GTMSessionFetcher-firebasestorage.googleapis.com"), was created over 30 seconds ago. In applications running in the background, this creates a risk of termination. Remember to call UIApplication.endBackgroundTask(_:) for your task in a timely manner to avoid this.

Here is my code to save the video to firebase.

1func saveMovie(path: String, file: String, url: URL) {
2    var backgroundTaskID: UIBackgroundTaskIdentifier?
3    // Perform the task on a background queue.
4    DispatchQueue.global().async {
5        // Request the task asseration and save the ID
6        backgroundTaskID = UIApplication.shared.beginBackgroundTask(withName: &quot;Finish doing this task&quot;, expirationHandler: {
7            // End the task if time expires
8            UIApplication.shared.endBackgroundTask(backgroundTaskID!)
9            backgroundTaskID = UIBackgroundTaskIdentifier.invalid
10        })
11        // Send the data synchronously
12        do {
13            let movieData = try Data(contentsOf: url)
14            self.storage.child(path).child(&quot;\(file).m4v&quot;).putData(movieData)
15        } catch let error {
16            fatalError(&quot;Error saving movie in saveMovie func. \(error.localizedDescription)&quot;)
17        }
18        //End the task assertion
19        UIApplication.shared.endBackgroundTask(backgroundTaskID!)
20        backgroundTaskID = UIBackgroundTaskIdentifier.invalid
21    }
22}
23

Any suggestions on how I can allow my video time to upload?

ANSWER

Answered 2021-Dec-27 at 06:04

Finally figured this out after a long time...

All you have to do is use .putFile("FileURL") instead of .putdata("Data"). Firebase documentation says you should use putFile() instead of putData() when uploading large files.

But the hard part is for some reason you can't directly upload the movie URL that you get from the didFinishPickingMediaWithInfo function and firebase will just give you an error. So what I did instead was get the data of the movie, save the movie data to a path in the file manager, and use the file manager path URL to upload directly to firebase which worked for me.

1func saveMovie(path: String, file: String, url: URL) {
2    var backgroundTaskID: UIBackgroundTaskIdentifier?
3    // Perform the task on a background queue.
4    DispatchQueue.global().async {
5        // Request the task asseration and save the ID
6        backgroundTaskID = UIApplication.shared.beginBackgroundTask(withName: &quot;Finish doing this task&quot;, expirationHandler: {
7            // End the task if time expires
8            UIApplication.shared.endBackgroundTask(backgroundTaskID!)
9            backgroundTaskID = UIBackgroundTaskIdentifier.invalid
10        })
11        // Send the data synchronously
12        do {
13            let movieData = try Data(contentsOf: url)
14            self.storage.child(path).child(&quot;\(file).m4v&quot;).putData(movieData)
15        } catch let error {
16            fatalError(&quot;Error saving movie in saveMovie func. \(error.localizedDescription)&quot;)
17        }
18        //End the task assertion
19        UIApplication.shared.endBackgroundTask(backgroundTaskID!)
20        backgroundTaskID = UIBackgroundTaskIdentifier.invalid
21    }
22}
23            //Save movie to Firestore
24        do {
25            // Convert movie to Data.
26            let movieData = try Data(contentsOf: movie)
27            // Get path so we can save movieData into fileManager and upload to firebase because movie URL does not work, but fileManager url does work.
28            guard let path = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first?.appendingPathComponent(postId!) else { print(&quot;Error saving to file manager in addPost func&quot;); return }
29            do {
30                try movieData.write(to: path)
31                // Save the file manager url file to firebase storage
32                Storage.storage().reference().child(&quot;Videos&quot;).child(&quot;\(postId!).m4v&quot;).putFile(from: path, metadata: nil) { metadata, error in
33                    if let error = error {
34                        print(&quot;There was an error \(error.localizedDescription)&quot;)
35                    } else {
36                        print(&quot;Video successfully uploaded.&quot;)
37                    }
38                    // Delete video from filemanager because it would take up too much space to save all videos to file manager.
39                    do {
40                        try FileManager.default.removeItem(atPath: path.path)
41                    } catch let error {
42                        print(&quot;Error deleting from file manager in addPost func \(error.localizedDescription)&quot;)
43                    }
44                }
45            } catch let error {
46                print(&quot;Error writing movieData to firebase \(error.localizedDescription)&quot;)
47            }
48        } catch let error {
49            print(&quot;There was an error adding video in addPost func \(error.localizedDescription)&quot;)
50        }
51

Source https://stackoverflow.com/questions/70222090

QUESTION

FFmpeg best LGPL alternative to libx264?

Asked 2021-May-11 at 15:57

I'm developing a commercial software that is not open source. It will use FFmpeg to export videos. The libx264 codec doesn't appear to be an option for me since I can only use LGPL for legal reasons. What is the best LGPL alternative to libx264? I'd like a codec that makes a good compromise between quality and file size as well as being supported by the majority of video players and video sharing sites such as YouTube. If I have to choose between lower quality and larger file size then I'd go with larger file size since videos can always be transcoded using other software if needed, but lossless formats such as Lagarith are still too large.

I see that libopenh264 may be an option, but is it supported by most players and video sharing websites? How does it compare to libx264 and is it LGPL?

ANSWER

Answered 2021-May-11 at 14:05

Consumers (players, platforms...) don't support encoders, they support codecs. And x264 and openh264 both encode H.264/AVC codec streams. You should be fine, technically, with libopenh264.

Source https://stackoverflow.com/questions/67488188

QUESTION

How do I write into a CSV file without removing anything in it in Python?

Asked 2021-Feb-08 at 06:06

So, I have this is in my CSV file:

1app,ceo,date,type
2Youtube,Susan Wojcicki,2005,video sharing
3Facebook,Mark Zuckerburg,2004,social networking
4Google,Sundar Pichai,1998,search engine
5Amazon,Jeff Bezos,1994,e-commerce
6Apple,Tim Cook,1976,tech
7

This is the code:

1app,ceo,date,type
2Youtube,Susan Wojcicki,2005,video sharing
3Facebook,Mark Zuckerburg,2004,social networking
4Google,Sundar Pichai,1998,search engine
5Amazon,Jeff Bezos,1994,e-commerce
6Apple,Tim Cook,1976,tech
7data = open('companies.csv', 'w')
8data.write(&quot;,&quot;.join([&quot;Tesla&quot;, &quot;Elon Musk&quot;, &quot;2003&quot;, &quot;automative&quot;]))
9data.close()
10

How do I write this piece of information into the CSV file without removing anything? Every time I run the program, the file just contains this piece of info. The rest of it disappears. I want to change to something like:

1app,ceo,date,type
2Youtube,Susan Wojcicki,2005,video sharing
3Facebook,Mark Zuckerburg,2004,social networking
4Google,Sundar Pichai,1998,search engine
5Amazon,Jeff Bezos,1994,e-commerce
6Apple,Tim Cook,1976,tech
7data = open('companies.csv', 'w')
8data.write(&quot;,&quot;.join([&quot;Tesla&quot;, &quot;Elon Musk&quot;, &quot;2003&quot;, &quot;automative&quot;]))
9data.close()
10app,ceo,date,type
11Youtube,Susan Wojcicki,2005,video sharing
12Facebook,Mark Zuckerburg,2004,social networking
13Google,Sundar Pichai,1998,search engine
14Amazon,Jeff Bezos,1994,e-commerce
15Apple,Tim Cook,1976,tech
16Tesal,Elon Musk,2003,automotive
17

ANSWER

Answered 2021-Feb-08 at 06:06

you should use append mode('a') instead of write mode('w')

1app,ceo,date,type
2Youtube,Susan Wojcicki,2005,video sharing
3Facebook,Mark Zuckerburg,2004,social networking
4Google,Sundar Pichai,1998,search engine
5Amazon,Jeff Bezos,1994,e-commerce
6Apple,Tim Cook,1976,tech
7data = open('companies.csv', 'w')
8data.write(&quot;,&quot;.join([&quot;Tesla&quot;, &quot;Elon Musk&quot;, &quot;2003&quot;, &quot;automative&quot;]))
9data.close()
10app,ceo,date,type
11Youtube,Susan Wojcicki,2005,video sharing
12Facebook,Mark Zuckerburg,2004,social networking
13Google,Sundar Pichai,1998,search engine
14Amazon,Jeff Bezos,1994,e-commerce
15Apple,Tim Cook,1976,tech
16Tesal,Elon Musk,2003,automotive
17data = open('companies.csv', 'a')
18data.write(&quot;\n&quot;) #else it appends directly to last line
19data.write(&quot;,&quot;.join([&quot;Tesla&quot;, &quot;Elon Musk&quot;, &quot;2003&quot;, &quot;automative&quot;]))
20data.close()
21

Source https://stackoverflow.com/questions/66096493

QUESTION

AWS RDS MySQL approximately 8 million rows

Asked 2020-Nov-08 at 17:11

So I've hosted a video sharing website and right now I have approximately 2 million rows stored in an AWS RDS db.t2.large. The pricing for this instance is $0.136/hr. However it is very slow because it only has 2 CPU's. The cost to get an instance with 8 CPUs is $0.544/hr which is well over my budget. I am running the statement "SELECT * FROM videos ORDER BY RAND() LIMIT 100" on almost every page and it is too slow with only 2 CPU's. With 8 CPU's it is bearable. How do I make this faster? I don't want users waiting a long time every on refresh or new link. The number of rows is expected to grow 8 million rows when i complete the data dump.

--- AWS RDS DB CPU ---

--- AWS RDS DB Pricing ---

ANSWER

Answered 2020-Nov-08 at 17:11

Is it perhaps enough to just select randomly from within a date range, or from videos that have a certain amount of views? What database are you on? See e.g. MYSQL: Query order by rand() very slow

Another approach is to cache the randomized values. You can do it in a way that looks completely random to each user:

user A requests random sample => store sample in cache, and mark it as having been retrieved by A

user B requests random sample => get random sample from cache, checking whether we have retrieved it before (we haven't, it was A, so return it)

user A requests random sample => get random sample from cache, checking whether we have retrieved it before (we have, it was us, so we do another request and add it to the cache and then return it)

This makes the request of B "free", so instead of 3 requests we only have 2.

Source https://stackoverflow.com/questions/64740619

QUESTION

How to save cloud space in Firebase

Asked 2020-Oct-02 at 18:59

I am planning to start a small photo/video sharing app that self-destruct after a while (like Snapchat) using Firebase.

The question is: Since Firebase has storage limitations and charges surplus for certain things, is it possible to use a cron job to delete expired files and save space? Or will I be charged anyway?

Thanks in advance, I'm a beginner.

ANSWER

Answered 2020-Oct-02 at 18:59

You will only be charged for files that are being stored in your Storage bucket. So if you remove files, you will no longer be charged for the space those files took going forward. Cleaning up unneeded data is a great way to reduce the cost of your solution.

It seems you can set an auto-delete policy on your Cloud Storage bucket through its object lifecycle management feature, but I'll admit I've never used that myself.

When I've needed to periodically clean up, I've run a scheduled Cloud Function that then used the Firebase Admin SDK to remove the outdated files.

Source https://stackoverflow.com/questions/64176649

QUESTION

Merge one audio file and one image file to create a video with ffmpeg

Asked 2020-Jul-24 at 17:51

I first tried:

1ffmpeg -y -i image.jpg -i audio.mp3 -c:a copy output.mp4
2

but when I uploaded to video sharing websites (bilibili.com), it says "no video track", so I tried:

1ffmpeg -y -i image.jpg -i audio.mp3 -c:a copy output.mp4
2ffmpeg -r 1 -loop 1 -i image.jpg -i audio.mp3 -acodec copy -r 1 -shortest output.mp4
3

The file was successfully uploaded, but when I watched it on the website, the image disappeared and it turned grey. I merged 6 videos and only one of them can be normally played back. (This is the URL to the video: click here, if you can visit the website you'll see what I mean.)

What should I do?

ANSWER

Answered 2020-Jul-24 at 17:51

Problems with your command #2:

Frame rate is too low. Most players are unable to play 1 fps. Use 10 fps or higher for output, or set input -framerate to 10 fps or higher.
Chroma subsampling. Most players can only play 4:2:0, so use the format filter to force it to 4:2:0.
MP3 in MP4. Some players are unable to play MP3 in MP4. For highest compatibility use AAC. ffmpeg will choose AAC by default for MP4.
Faststart (optional). Add -movflags +faststart so MP4 can begin playback faster.

Command:

1ffmpeg -y -i image.jpg -i audio.mp3 -c:a copy output.mp4
2ffmpeg -r 1 -loop 1 -i image.jpg -i audio.mp3 -acodec copy -r 1 -shortest output.mp4
3ffmpeg -framerate 1 -loop 1 -i image.jpg -i audio.mp3 -vf format=yuv420p -r 10 -shortest -movflags +faststart output.mp4
4

Source https://stackoverflow.com/questions/63071383

QUESTION

How to link user information of firebase_auth with files uploaded to other databases

Asked 2020-Jul-03 at 05:41

I am trying to make something like an image/video sharing application with flutter and firebase.

User registration and authentication with firebase_auth File upload with firebase_storage Saving data in cloud_firestore, etc.← Now here

I'm looking at, but I'm working with them, for example,

Link the user information (user id) and the uploaded file, I want to know who uploaded each file, What should i do?

If I could do that, I can search files by user id, I give points to each user according to the number of file uploads I think you can do something like this.

Do I need to use firestore or something for that?

ANSWER

Answered 2020-Jul-03 at 05:41

I believe that a good approach to do this is create a collection for videos and for images in Firestore Database, or even a generic collection called media, where each document has the info about the uploaded media, such as type (video/image), the file's url from Firebase Storage, user's id and the upload's date. You can create a model like this, by example:

1class UserMedia {
2  String userId;
3  String mediaUrl;
4  String mediaType; // media type can be video, image, audio, etc.
5  DateTime uploadedAt;
6}
7

Then in your Firestore Database you can create a structure like this:

1class UserMedia {
2  String userId;
3  String mediaUrl;
4  String mediaType; // media type can be video, image, audio, etc.
5  DateTime uploadedAt;
6}
7/media/{userId}/{userMedia} //here userMedia is a document created with the model described above.
8

And do the same for Firebase Storage. You can save files inside folders that the Storage creates based on the path if it doesn't exists. By example you can upload a file passing some variables such as userId and the Storage will create the folders, by example:

1class UserMedia {
2  String userId;
3  String mediaUrl;
4  String mediaType; // media type can be video, image, audio, etc.
5  DateTime uploadedAt;
6}
7/media/{userId}/{userMedia} //here userMedia is a document created with the model described above.
8/media/{userId}/image_{userId}_{imageId}.jpg
9

Source https://stackoverflow.com/questions/62707150

QUESTION

How do I make a link that embed the video player below the link

Asked 2020-Jun-23 at 06:20

So I have a video sharing website, written in PHP. Now when a share a link, it will just show the link. But I want it to have a embed video part below the link. Here's the screenshot of what I mean. Example Image

Is there any way to implement it? Thank you :)

ANSWER

Answered 2020-Jun-23 at 06:20

If you want to share it as like sharing a youtube video link with preview thumbnails then may be this helps you. I think you need to use the og tag which helps you to preview a link while sending on social media as thumbnails. if you mean that you use it.

create og tag and placed it in meta tag in head section like this:

1&lt;meta property=&quot;og:image&quot; content=&quot;https://domain_name.com/ftp_path/image_name.png&quot;/&gt;
2&lt;meta property=&quot;og:image:width&quot; content=&quot;1200&quot; /&gt;
3&lt;meta property=&quot;og:image:height&quot; content=&quot;680&quot; /&gt;
4

this og tag helps you to view your link image while sharing. and you also have to mention title and description if you want. may be you try it.

Source https://stackoverflow.com/questions/62527282

QUESTION

Flutter SDK IOs Privacy

Asked 2020-Jun-17 at 21:56

I am using the agora.io Flutter (agora_rtc_engine: 1.0.5) for a cross-platform application. In the info.plist the io.flutter.embedded_views_preview is set to Yes as the documentation specifies.

My test application currently has only a main screen and the example Agora flutter video sharing example provided on Github in the quick start https://github.com/AgoraIO-Community/Agora-Flutter-Quickstart.

When I packaged the app and submitted it to the Apple App Store it is rejected because of the privacy permissions. The rejection states that the following privacy notices are not set:

NSContactsUsageDescription
NSCalendarsUsageDescription
NSAppleMusicUsageDescription
NSMotionUsageDescription
NSSpeechRecognitionUsageDescription
Missing Push Notification Entitlement
NSLocationAlwaysUsageDescription
NSLocationWhenInUseUsageDescription

There is no code in the flutter application that touches any of these areas.

Is this a result of setting the io.flutter.embedded_views_preview to be true?

Is this expected or is there something that I am missing that is causing this?

ANSWER

Answered 2020-Jun-17 at 21:56

It looks like that you're adding user permissions for stuff that your app might not need.

This is something that you can do to prevent this:

Don't hardcode any permission in the plist/manifest
And to not have asserts in the package that make the compiler fail when you don't have the permissions for a feature you aren't even using.
If you're using permission_handler plugin as used in Agora's quickstart guide then you will have to probably mention all the permissions that you wont be using in your Podfile. You can refer the below link on how to do that: https://github.com/flutter/flutter/issues/21941#issuecomment-576121308

Source https://stackoverflow.com/questions/62266799

QUESTION

How to use this cordova plugin

Asked 2020-Jun-04 at 01:44

I am building a video sharing app with ionic. I want when users wants to upload videos and it will give them a preview where they can trim the video, now I found the Cordova plugin that can do it, but I don't knowhow to use it Here is the plugin

cordova-plugin-video-trim from https://www.npmjs.com/package/cordova-plugin-video-trim

Now please, how can I use this plugin in my ionic application

ANSWER

Answered 2020-Jun-04 at 01:44

Go to the project root and run these commands:

1cordova plugin add cordova-plugin-video-trim
2

then run:

1cordova plugin add cordova-plugin-video-trim
2npm i cordova-plugin-video-trim
3

then open your app.module.ts and import it and put it in providers:

1cordova plugin add cordova-plugin-video-trim
2npm i cordova-plugin-video-trim
3import {YourPlugin} from './path-to-your-plugin-in-node_modules';
4
5@NgModule({
6  ...
7  providers: [
8    ...
9    YourPlugin
10    ...
11  ],
12  ...
13})
14export class AppModule {
15}
16

and now you can import it in your component controller (.page.ts file) and make an instance of it in the constructor and use its methods:

1cordova plugin add cordova-plugin-video-trim
2npm i cordova-plugin-video-trim
3import {YourPlugin} from './path-to-your-plugin-in-node_modules';
4
5@NgModule({
6  ...
7  providers: [
8    ...
9    YourPlugin
10    ...
11  ],
12  ...
13})
14export class AppModule {
15}
16import {YourPlugin} from './path-to-your-plugin-in-node_modules';
17
18@Component({
19  selector: 'app-somepage',
20  templateUrl: './somepage.page.html',
21  styleUrls: ['./somepage.page.scss'],
22})
23export class SomepagePage implements OnInit, AfterViewInit {
24
25  constructor(private plugin: YourPlugin) {
26  }
27}
28