I want to play a song in a Xamarin app using the standard android media player.
I've got two questions that i haven't been able to answer myself:
Here do I put the media file (.mp3-file) or how do i link to the file (it's also saved on my SD-Card) I tried saving it in the raw-folder, but that doesn't seem to work
How do I correctly launch the player? Either my code doesn't work or the player doesn't find the file because it isn't stored correctly.
However, that's the method I use to prepare the media player:
protected MediaPlayer player;
public void StartPlayer() {
if (player == null) {
player = new MediaPlayer();
player.SetDataSource("Ressources.raw.test");
player.Prepare();
player.Start();
text = "Running";
} else {
player.Reset();
player.SetDataSource("Ressources.raw.test");
player.Prepare();
player.Start();
}
}
I tried saving it in the raw-folder, but that doesn't seem to work
You can't directly use string "Ressources.raw.test" as the DataSource. If you need play a song from Resource/Raw folder, here is two solutions.
Solution 1:
You could try using MediaPlayer.Create(Context context, int resid)
method:
Convenience method to create a MediaPlayer for a given resource id. On success, prepare() will already have been called and must not be called again.
Usageļ¼
MediaPlayer player = MediaPlayer.Create(this, Resource.Raw.test);
player.Start();
Solution 2:
Convert your Resource/Raw/test path to Android.Net.Uri:
player = new MediaPlayer();
Android.Net.Uri uri = Android.Net.Uri.Parse("android.resource://" + PackageName + "/" + Resource.Raw.test);
player.SetDataSource(this, uri2);
player.Prepare();
player.Start();
how do I link to the file (it's also saved on my SD-Card)
Solution:
Try using SetDataSource (Context context, Uri uri) method, for example:
player = new MediaPlayer();
//My file path is Path == file:///storage/emulated/0/netease/cloudmusic/Music/love.MP3
var uri = Android.Net.Uri.Parse("file://" + Android.OS.Environment.ExternalStorageDirectory + "/netease/cloudmusic/Music/love.MP3");
player.SetDataSource(this, uri);
player.Prepare();
player.Start();
Related
I'm able to load audio using UnityWebRequestMultimedia.GetAudioClip in the Unity Editor with the following code but when I run it on Android I am unable to load any files from the user's device.
void Start() {
audio = GetComponent<AudioSource>();
string fullPath = Path.Combine("file://" + previewSong);
StartCoroutine(GetAudioClip(fullPath));
}
IEnumerator GetAudioClip(string fullPath)
{
using (var uwr = UnityWebRequestMultimedia.GetAudioClip(fullPath, AudioType.MPEG))
{
((DownloadHandlerAudioClip)uwr.downloadHandler).streamAudio = true;
yield return uwr.SendWebRequest();
if (uwr.isNetworkError || uwr.isHttpError)
{
debugSongPath2.text = uwr.error;
yield break;
}
DownloadHandlerAudioClip dlHandler = (DownloadHandlerAudioClip)uwr.downloadHandler;
if (dlHandler.isDone)
{
audio.clip = dlHandler.audioClip;
if (audio.clip != null)
{
audio.clip = DownloadHandlerAudioClip.GetContent(uwr);
Debug.Log("Playing song using Audio Source!");
}
else
{
Debug.Log("Couldn't find a valid AudioClip.");
}
}
else
{
Debug.Log("The download process is not completely finished.");
}
}
}
The errors I experience vary depending on how I form the start of the URL.
Path.Combine("file:/" + previewSong);
malformed URL
Path.Combine("file://" + previewSong);
http:/1.1 404 not found
Path.Combine("file:///" + previewSong);
unknown error
Path.Combine("file:////" + previewSong);
unknown error
When I output the URLs on my phone they look correct. Here's an example path:
file:///storage/emulated/0/Music/Deorro/Deorro - Five Hours.mp3
I was previously loading audio from this URL successfully with WWW.GetAudioClip but that's obsolete. This leads me to believe the URL is correct. I've tried building with and without Development Mode. Not sure what else to try. I'd like to get this working with UnityWebRequestMultimedia but if there is an alternative, more effective way of loading local files I'm open to it.
Change your build settings to give write access to external sd card. I am using below code to get audio from specified location in android. I tried your code but somehow its not working.
IEnumerator GetAudioClip2(string fullPath)
{
debugSongPath2.text = previewSong;
using (UnityWebRequest www = UnityWebRequestMultimedia.GetAudioClip(fullPath, AudioType.MPEG))
{
yield return www.SendWebRequest();
if (www.isNetworkError || www.isHttpError)
{
Debug.Log(www.error);
}
else
{
AudioClip myClip = DownloadHandlerAudioClip.GetContent(www);
audioSource.clip = myClip;
audioSource.Play();
}
}
}
My full path was "file:///storage/emulated/0/Samsung/Music/Over the Horizon.mp3"
The issue was with the new Android 11 scoped storage which disables READ_EXTERNAL_STORAGE. I had to add the following to my AndroidManifest.xml:
<manifest ... >
<!-- This attribute is "false" by default on apps targeting Android 10 or higher. -->
<application android:requestLegacyExternalStorage="true" ... >
...
</application>
</manifest>
https://developer.android.com/training/data-storage/use-cases#opt-out-scoped-storage
I am developing a voice recorder app for Windows Phone 8.1 that stores the recordings on the local storage and a cloud storage service.
Everything's almost done except the fact that being able to pause an ongoing recording is a strong requirement for this app and I have to get it done.
Now, since PauseRecordAsync() and ResumeRecordAsync() are not available for Windows Phone 8.1 in the MediaCapture class but they will be available in Windows 10, I had to make a workaround: Every time the pause button is pressed, an audio chunk is saved in the temp folder and that file is stored in an array. When the stop button is pressed, the last chunk is stored in the array and the following Concatenation function is called and a final audio temp file is created:
public async Task<IStorageFile> ConcatenateAudio([ReadOnlyArray]IStorageFile[] audioFiles, IStorageFolder outputFolder, string outputfileName)
{
IStorageFile _OutputFile = await outputFolder.CreateFileAsync(outputfileName, CreationCollisionOption.ReplaceExisting);
MediaComposition _MediaComposition = new MediaComposition();
MediaEncodingProfile _MediaEncodingProfile = MediaEncodingProfile.CreateM4a(AudioEncodingQuality.High);
foreach (IStorageFile _AudioFile in audioFiles)
{
if(_AudioFile != null)
{
BackgroundAudioTrack _BackgroundAudioTrack = await BackgroundAudioTrack.CreateFromFileAsync(_AudioFile);
MediaClip _MediaClip = MediaClip.CreateFromColor(Windows.UI.Colors.Black, _BackgroundAudioTrack.TrimmedDuration); // A dummy black video is created witn the size of the current audio chunk.
// Without this, the duration of the MediaComposition object is always 0.
// It's a messy workaround but it gets the job done.
// Windows 10 will dirrectly support PauseRecordAsync() and ResumeRecordAsync() for MediaCapture tho'. Yay! :D
_MediaClip.Volume = 0;
_BackgroundAudioTrack.Volume = 1;
_MediaComposition.Clips.Add(_MediaClip);
_MediaComposition.BackgroundAudioTracks.Add(_BackgroundAudioTrack);
}
}
TranscodeFailureReason _TranscodeFailureReason = await _MediaComposition.RenderToFileAsync(_OutputFile, MediaTrimmingPreference.Fast, _MediaEncodingProfile);
if (_TranscodeFailureReason != TranscodeFailureReason.None)
{
throw new Exception("Audio Concatenation Failed: " + _TranscodeFailureReason.ToString());
}
return _OutputFile;
}
The problem is that when I play the file, all the audio chunks are played from the beginning of the final audio file at the same time instead of playing the second one right after the first one ended and so on. They are all playing one over the other. The length of the file on the other hand is correct and after all audio files finished playing, it's total silence.
I figured it out. I had to manually set the delay for BackgroundAudioTrack.
Here is the working code:
public async Task<IStorageFile> ConcatenateAudio([ReadOnlyArray]IStorageFile[] audioFiles, IStorageFolder outputFolder, string outputfileName)
{
IStorageFile _OutputFile = await outputFolder.CreateFileAsync(outputfileName, CreationCollisionOption.ReplaceExisting);
MediaComposition _MediaComposition = new MediaComposition();
MediaEncodingProfile _MediaEncodingProfile = MediaEncodingProfile.CreateM4a(AudioEncodingQuality.High);
TimeSpan totalDelay = TimeSpan.Zero;
foreach (IStorageFile _AudioFile in audioFiles)
{
if (_AudioFile != null)
{
BackgroundAudioTrack _BackgroundAudioTrack = await BackgroundAudioTrack.CreateFromFileAsync(_AudioFile);
MediaClip _MediaClip = MediaClip.CreateFromColor(Windows.UI.Colors.Black, _BackgroundAudioTrack.TrimmedDuration); // A dummy black video is created witn the size of the current audio chunk.
// Without this, the duration of the MediaComposition object is always 0.
// It's a messy workaround but it gets the job done.
// Windows 10 will dirrectly support PauseRecordAsync() and ResumeRecordAsync() for MediaCapture tho'. Yay! :D
_MediaClip.Volume = 0;
_BackgroundAudioTrack.Volume = 1;
_MediaComposition.Clips.Add(_MediaClip);
_MediaComposition.BackgroundAudioTracks.Add(_BackgroundAudioTrack);
_BackgroundAudioTrack.Delay = totalDelay;
totalDelay += _BackgroundAudioTrack.TrimmedDuration;
}
}
TranscodeFailureReason _TranscodeFailureReason = await _MediaComposition.RenderToFileAsync(_OutputFile, MediaTrimmingPreference.Fast, _MediaEncodingProfile);
if (_TranscodeFailureReason != TranscodeFailureReason.None)
{
throw new Exception("Audio Concatenation Failed: " + _TranscodeFailureReason.ToString());
}
return _OutputFile;
}
I am trying to allow the user to Import a song using a file browser Add on from the unity store. Currently I am trying to just play the song in the menu, just to see if I have loaded it correctly but it seems I cannot get past this stage. The WWW function makes no sense to me and I will need someone to explain it very simply. In my eyes this should open the file browser, the user then selects that file, then the selected file should be loaded into the audio clip. then the debug play button should play that audio clip, but from pausing the game I can see that the file browser finds the file and has the correct string but the audio is never assigned to the clip correctly. I am using .wav and .ogg files so no problem with formats.
public FileBrowser fb = new FileBrowser();
public bool toggleBrowser = true;
public string userAudio;
public AudioSource aSource;
public AudioListener aListener;
public AudioClip aClip;
void Start()
{
if (aSource == null)
{
aSource = gameObject.AddComponent<AudioSource>();
aListener = gameObject.AddComponent<AudioListener>();
}
}
void OnGUI()
{
// File browser, cancel returns to menu and select chooses music file to load
if (fb.draw())
{
if (fb.outputFile == null)
{
Application.LoadLevel("_WaveRider_Menu");
}
else
{
Debug.Log("Ouput File = \"" + fb.outputFile.ToString() + "\"");
// Taking the selected file and assigning it a string
userAudio = fb.outputFile.ToString();
}
}
}
public void playTrack()
{
//assigns the clip to the audio source and plays it
aSource.clip = aClip;
aSource.Play();
}
IEnumerator LoadFilePC(string filePath)
{
filePath = userAudio;
print("loading " + filePath);
//Loading the string file from the File browser
WWW www = new WWW("file:///" + filePath);
//create audio clip from the www
aClip = www.GetAudioClip(false);
while (!aClip.isReadyToPlay)
{
yield return www;
}
}
}
There are a few things that may be causing you some trouble.
I'm not sure how exactly the file browser add-on works, but in the code you posted the PlayTrack() function is never called, and the LoadFilePC coroutine is never started. Even if you're loading the file correctly, it's never being assigned to the AudioSource or playing.
Try adding "playTrack();" at the end of your coroutine, and starting it using the MonoBehaviour.StartCoroutine() function after the file is selected.
So I'm trying to make a Android app for an online radio and no matter how much I use the guides on Xamarin, it's not streaming.
My code: http://pastebin.com/K20RX8Yk
The coding environment I am using is Xamarin.Android and I am coding in the Xamarin Studio. I've been using the Android emu running API 16.
I have already tried different path files but sadly that hasn't fixed it.
I would advice to use the MediaPlayer to stream audio on Android, as it is much easier to use then AudioTrack. Potentially AudioTrack could have better performance but you need to do quite some stuff yourself to get it working correctly.
Here is a blog post with example how to use MediaPlayer on Xamarin Android: http://blog.xamarin.com/background-audio-streaming-with-xamarin.android/
A quick example out of that is:
private const string Mp3 = #"http://167.88.113.131:8000/;stream.mp3";
private MediaPlayer player;
private void IntializePlayer()
{
player = new MediaPlayer();
//Tell our player to sream music
player.SetAudioStreamType(Stream.Music);
}
private async void Play()
{
if (player == null) {
IntializePlayer();
}
try {
await player.SetDataSourceAsync(ApplicationContext, Android.Net.Uri.Parse(Mp3));
player.PrepareAsync();
player.Start();
}
catch (Exception ex) {
//unable to start playback log error
Console.WriteLine("Unable to start playback: " + ex);
}
}
I'm using VlcDotNet to stream video and I faced a strange issue recently. When I stream video from my webcamera with VLC player I can perfectly watch it. But when I try to stream it using VlcControl I get an error that VLC couldn't connect to the source. I'm using the same options in VLC and VlcControl:
:sout=#transcode{vcodec=h264,vb=0,scale=0,acodec=mpga,ab=128,channels=2,samplerate=44100}:http{mux=ffmpeg{mux=flv},dst=:10177/} :sout-keep
Maybe I missing something, please look at my code:
if (Environment.Is64BitOperatingSystem)
{
VlcContext.LibVlcDllsPath = CommonStrings.LIBVLC_DLLS_PATH_DEFAULT_VALUE_AMD64;
VlcContext.LibVlcPluginsPath = CommonStrings.PLUGINS_PATH_DEFAULT_VALUE_AMD64;
}
else
{
VlcContext.LibVlcDllsPath = CommonStrings.LIBVLC_DLLS_PATH_DEFAULT_VALUE_X86;
VlcContext.LibVlcPluginsPath = CommonStrings.PLUGINS_PATH_DEFAULT_VALUE_X86;
}
//Set the startup options
VlcContext.StartupOptions.IgnoreConfig = true;
VlcContext.StartupOptions.LogOptions.LogInFile = true;
VlcContext.StartupOptions.LogOptions.ShowLoggerConsole = false;
VlcContext.StartupOptions.LogOptions.Verbosity = VlcLogVerbosities.None;
VlcContext.CloseAll();
VlcContext.Initialize();
VlcControl player = new VlcControl();
var media = new LocationMedia("dshow://");
media.AddOption(":sout=#transcode{vcodec=h264,vb=0,scale=0,acodec=mpga,ab=128,channels=2,samplerate=44100}:http{mux=ffmpeg{mux=flv},dst=:10177/} :sout-keep");
player.Media = media;
player.Play();
Console.WriteLine("Translation started...");
Console.ReadLine();
I think Vlc could not connect to your webcam because you didn't pass it the name of the camera
i tried it and i got
:dshow-vdev=USB2.0 Camera :dshow-adev= :live-caching=300
try at as another aption but make sure to change the camera name
PS. you can find this option, when you open Open Capture device --> tick the Show More Options
i think this will solve your problem :)