diff options
Diffstat (limited to 'plugins/org.apache.cordova.media/src/wp/AudioPlayer.cs')
| -rw-r--r-- | plugins/org.apache.cordova.media/src/wp/AudioPlayer.cs | 647 |
1 files changed, 0 insertions, 647 deletions
diff --git a/plugins/org.apache.cordova.media/src/wp/AudioPlayer.cs b/plugins/org.apache.cordova.media/src/wp/AudioPlayer.cs deleted file mode 100644 index 882eb96e..00000000 --- a/plugins/org.apache.cordova.media/src/wp/AudioPlayer.cs +++ /dev/null @@ -1,647 +0,0 @@ -/* - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -using System; -using System.IO; -using System.IO.IsolatedStorage; -using System.Windows; -using System.Windows.Controls; -using System.Windows.Threading; -using Microsoft.Xna.Framework; -using Microsoft.Xna.Framework.Audio; -using Microsoft.Xna.Framework.Media; -using Microsoft.Phone.Controls; -using System.Diagnostics; -using System.Windows.Resources; - -namespace WPCordovaClassLib.Cordova.Commands -{ - - /// <summary> - /// Implements audio record and play back functionality. - /// </summary> - internal class AudioPlayer : IDisposable - { - #region Constants - - // AudioPlayer states - private const int PlayerState_None = 0; - private const int PlayerState_Starting = 1; - private const int PlayerState_Running = 2; - private const int PlayerState_Paused = 3; - private const int PlayerState_Stopped = 4; - - // AudioPlayer messages - private const int MediaState = 1; - private const int MediaDuration = 2; - private const int MediaPosition = 3; - private const int MediaError = 9; - - // AudioPlayer errors - private const int MediaErrorPlayModeSet = 1; - private const int MediaErrorAlreadyRecording = 2; - private const int MediaErrorStartingRecording = 3; - private const int MediaErrorRecordModeSet = 4; - private const int MediaErrorStartingPlayback = 5; - private const int MediaErrorResumeState = 6; - private const int MediaErrorPauseState = 7; - private const int MediaErrorStopState = 8; - - //TODO: get rid of this callback, it should be universal - //private const string CallbackFunction = "CordovaMediaonStatus"; - - #endregion - - - /// <summary> - /// The AudioHandler object - /// </summary> - private Media handler; - - /// <summary> - /// Temporary buffer to store audio chunk - /// </summary> - private byte[] buffer; - - /// <summary> - /// Xna game loop dispatcher - /// </summary> - DispatcherTimer dtXna; - - - /// <summary> - /// Output buffer - /// </summary> - private MemoryStream memoryStream; - - /// <summary> - /// The id of this player (used to identify Media object in JavaScript) - /// </summary> - private String id; - - /// <summary> - /// State of recording or playback - /// </summary> - private int state = PlayerState_None; - - /// <summary> - /// File name to play or record to - /// </summary> - private String audioFile = null; - - /// <summary> - /// Duration of audio - /// </summary> - private double duration = -1; - - /// <summary> - /// Audio player object - /// </summary> - private MediaElement player = null; - - /// <summary> - /// Audio source - /// </summary> - private Microphone recorder; - - /// <summary> - /// Internal flag specified that we should only open audio w/o playing it - /// </summary> - private bool prepareOnly = false; - - /// <summary> - /// Creates AudioPlayer instance - /// </summary> - /// <param name="handler">Media object</param> - /// <param name="id">player id</param> - public AudioPlayer(Media handler, String id) - { - this.handler = handler; - this.id = id; - } - - - /// <summary> - /// Destroys player and stop audio playing or recording - /// </summary> - public void Dispose() - { - if (this.player != null) - { - this.stopPlaying(); - this.player = null; - } - if (this.recorder != null) - { - this.stopRecording(); - this.recorder = null; - } - - this.FinalizeXnaGameLoop(); - } - - private void InvokeCallback(int message, string value, bool removeHandler) - { - string args = string.Format("('{0}',{1},{2});", this.id, message, value); - string callback = @"(function(id,msg,value){ - try { - if (msg == Media.MEDIA_ERROR) { - value = {'code':value}; - } - Media.onStatus(id,msg,value); - } - catch(e) { - console.log('Error calling Media.onStatus :: ' + e); - } - })" + args; - this.handler.InvokeCustomScript(new ScriptCallback("eval", new string[] { callback }), false); - } - - private void InvokeCallback(int message, int value, bool removeHandler) - { - InvokeCallback(message, value.ToString(), removeHandler); - } - - private void InvokeCallback(int message, double value, bool removeHandler) - { - InvokeCallback(message, value.ToString(), removeHandler); - } - - /// <summary> - /// Starts recording, data is stored in memory - /// </summary> - /// <param name="filePath"></param> - public void startRecording(string filePath) - { - if (this.player != null) - { - InvokeCallback(MediaError, MediaErrorPlayModeSet, false); - } - else if (this.recorder == null) - { - try - { - this.audioFile = filePath; - this.InitializeXnaGameLoop(); - this.recorder = Microphone.Default; - this.recorder.BufferDuration = TimeSpan.FromMilliseconds(500); - this.buffer = new byte[recorder.GetSampleSizeInBytes(this.recorder.BufferDuration)]; - this.recorder.BufferReady += new EventHandler<EventArgs>(recorderBufferReady); - MemoryStream stream = new MemoryStream(); - this.memoryStream = stream; - int numBits = 16; - int numBytes = numBits / 8; - - // inline version from AudioFormatsHelper - stream.Write(System.Text.Encoding.UTF8.GetBytes("RIFF"), 0, 4); - stream.Write(BitConverter.GetBytes(0), 0, 4); - stream.Write(System.Text.Encoding.UTF8.GetBytes("WAVE"), 0, 4); - stream.Write(System.Text.Encoding.UTF8.GetBytes("fmt "), 0, 4); - stream.Write(BitConverter.GetBytes(16), 0, 4); - stream.Write(BitConverter.GetBytes((short)1), 0, 2); - stream.Write(BitConverter.GetBytes((short)1), 0, 2); - stream.Write(BitConverter.GetBytes(this.recorder.SampleRate), 0, 4); - stream.Write(BitConverter.GetBytes(this.recorder.SampleRate * numBytes), 0, 4); - stream.Write(BitConverter.GetBytes((short)(numBytes)), 0, 2); - stream.Write(BitConverter.GetBytes((short)(numBits)), 0, 2); - stream.Write(System.Text.Encoding.UTF8.GetBytes("data"), 0, 4); - stream.Write(BitConverter.GetBytes(0), 0, 4); - - this.recorder.Start(); - FrameworkDispatcher.Update(); - this.SetState(PlayerState_Running); - } - catch (Exception) - { - InvokeCallback(MediaError, MediaErrorStartingRecording, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorStartingRecording),false); - } - } - else - { - InvokeCallback(MediaError, MediaErrorAlreadyRecording, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorAlreadyRecording),false); - } - } - - /// <summary> - /// Stops recording - /// </summary> - public void stopRecording() - { - if (this.recorder != null) - { - if (this.state == PlayerState_Running) - { - try - { - this.recorder.Stop(); - this.recorder.BufferReady -= recorderBufferReady; - this.recorder = null; - SaveAudioClipToLocalStorage(); - this.FinalizeXnaGameLoop(); - this.SetState(PlayerState_Stopped); - } - catch (Exception) - { - //TODO - } - } - } - } - - /// <summary> - /// Starts or resume playing audio file - /// </summary> - /// <param name="filePath">The name of the audio file</param> - /// <summary> - /// Starts or resume playing audio file - /// </summary> - /// <param name="filePath">The name of the audio file</param> - public void startPlaying(string filePath) - { - if (this.recorder != null) - { - InvokeCallback(MediaError, MediaErrorRecordModeSet, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorRecordModeSet),false); - return; - } - - - if (this.player == null || this.player.Source.AbsolutePath.LastIndexOf(filePath) < 0) - { - try - { - // this.player is a MediaElement, it must be added to the visual tree in order to play - PhoneApplicationFrame frame = Application.Current.RootVisual as PhoneApplicationFrame; - if (frame != null) - { - PhoneApplicationPage page = frame.Content as PhoneApplicationPage; - if (page != null) - { - Grid grid = page.FindName("LayoutRoot") as Grid; - if (grid != null) - { - - this.player = grid.FindName("playerMediaElement") as MediaElement; - if (this.player == null) // still null ? - { - this.player = new MediaElement(); - this.player.Name = "playerMediaElement"; - grid.Children.Add(this.player); - this.player.Visibility = Visibility.Visible; - } - if (this.player.CurrentState == System.Windows.Media.MediaElementState.Playing) - { - this.player.Stop(); // stop it! - } - - this.player.Source = null; // Garbage collect it. - this.player.MediaOpened += MediaOpened; - this.player.MediaEnded += MediaEnded; - this.player.MediaFailed += MediaFailed; - } - } - } - - this.audioFile = filePath; - - Uri uri = new Uri(filePath, UriKind.RelativeOrAbsolute); - if (uri.IsAbsoluteUri) - { - this.player.Source = uri; - } - else - { - using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication()) - { - if (!isoFile.FileExists(filePath)) - { - // try to unpack it from the dll into isolated storage - StreamResourceInfo fileResourceStreamInfo = Application.GetResourceStream(new Uri(filePath, UriKind.Relative)); - if (fileResourceStreamInfo != null) - { - using (BinaryReader br = new BinaryReader(fileResourceStreamInfo.Stream)) - { - byte[] data = br.ReadBytes((int)fileResourceStreamInfo.Stream.Length); - - string[] dirParts = filePath.Split('/'); - string dirName = ""; - for (int n = 0; n < dirParts.Length - 1; n++) - { - dirName += dirParts[n] + "/"; - } - if (!isoFile.DirectoryExists(dirName)) - { - isoFile.CreateDirectory(dirName); - } - - using (IsolatedStorageFileStream outFile = isoFile.OpenFile(filePath, FileMode.Create)) - { - using (BinaryWriter writer = new BinaryWriter(outFile)) - { - writer.Write(data); - } - } - } - } - } - if (isoFile.FileExists(filePath)) - { - using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(filePath, FileMode.Open, isoFile)) - { - this.player.SetSource(stream); - } - } - else - { - InvokeCallback(MediaError, MediaErrorPlayModeSet, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, 1), false); - return; - } - } - } - this.SetState(PlayerState_Starting); - } - catch (Exception e) - { - Debug.WriteLine("Error in AudioPlayer::startPlaying : " + e.Message); - InvokeCallback(MediaError, MediaErrorStartingPlayback, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorStartingPlayback),false); - } - } - else - { - if (this.state != PlayerState_Running) - { - this.player.Play(); - this.SetState(PlayerState_Running); - } - else - { - InvokeCallback(MediaError, MediaErrorResumeState, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorResumeState),false); - } - } - } - - /// <summary> - /// Callback to be invoked when the media source is ready for playback - /// </summary> - private void MediaOpened(object sender, RoutedEventArgs arg) - { - if (this.player != null) - { - this.duration = this.player.NaturalDuration.TimeSpan.TotalSeconds; - InvokeCallback(MediaDuration, this.duration, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaDuration, this.duration),false); - if (!this.prepareOnly) - { - this.player.Play(); - this.SetState(PlayerState_Running); - } - this.prepareOnly = false; - } - else - { - // TODO: occasionally MediaOpened is signalled, but player is null - } - } - - /// <summary> - /// Callback to be invoked when playback of a media source has completed - /// </summary> - private void MediaEnded(object sender, RoutedEventArgs arg) - { - this.SetState(PlayerState_Stopped); - } - - /// <summary> - /// Callback to be invoked when playback of a media source has failed - /// </summary> - private void MediaFailed(object sender, RoutedEventArgs arg) - { - player.Stop(); - InvokeCallback(MediaError, MediaErrorStartingPlayback, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError.ToString(), "Media failed"),false); - } - - /// <summary> - /// Seek or jump to a new time in the track - /// </summary> - /// <param name="milliseconds">The new track position</param> - public void seekToPlaying(int milliseconds) - { - if (this.player != null) - { - TimeSpan tsPos = new TimeSpan(0, 0, 0, 0, milliseconds); - this.player.Position = tsPos; - InvokeCallback(MediaPosition, milliseconds / 1000.0f, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaPosition, milliseconds / 1000.0f),false); - } - } - - /// <summary> - /// Set the volume of the player - /// </summary> - /// <param name="vol">volume 0.0-1.0, default value is 0.5</param> - public void setVolume(double vol) - { - if (this.player != null) - { - this.player.Volume = vol; - } - } - - /// <summary> - /// Pauses playing - /// </summary> - public void pausePlaying() - { - if (this.state == PlayerState_Running) - { - this.player.Pause(); - this.SetState(PlayerState_Paused); - } - else - { - InvokeCallback(MediaError, MediaErrorPauseState, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorPauseState),false); - } - } - - - /// <summary> - /// Stops playing the audio file - /// </summary> - public void stopPlaying() - { - if ((this.state == PlayerState_Running) || (this.state == PlayerState_Paused)) - { - this.player.Stop(); - - this.player.Position = new TimeSpan(0L); - this.SetState(PlayerState_Stopped); - } - //else // Why is it an error to call stop on a stopped media? - //{ - // this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaError, MediaErrorStopState), false); - //} - } - - /// <summary> - /// Gets current position of playback - /// </summary> - /// <returns>current position</returns> - public double getCurrentPosition() - { - if ((this.state == PlayerState_Running) || (this.state == PlayerState_Paused)) - { - double currentPosition = this.player.Position.TotalSeconds; - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaPosition, currentPosition),false); - return currentPosition; - } - else - { - return 0; - } - } - - /// <summary> - /// Gets the duration of the audio file - /// </summary> - /// <param name="filePath">The name of the audio file</param> - /// <returns>track duration</returns> - public double getDuration(string filePath) - { - if (this.recorder != null) - { - return (-2); - } - - if (this.player != null) - { - return this.duration; - - } - else - { - this.prepareOnly = true; - this.startPlaying(filePath); - return this.duration; - } - } - - /// <summary> - /// Sets the state and send it to JavaScript - /// </summary> - /// <param name="state">state</param> - private void SetState(int state) - { - if (this.state != state) - { - InvokeCallback(MediaState, state, false); - //this.handler.InvokeCustomScript(new ScriptCallback(CallbackFunction, this.id, MediaState, state),false); - } - - this.state = state; - } - - #region record methods - - /// <summary> - /// Copies data from recorder to memory storages and updates recording state - /// </summary> - /// <param name="sender"></param> - /// <param name="e"></param> - private void recorderBufferReady(object sender, EventArgs e) - { - this.recorder.GetData(this.buffer); - this.memoryStream.Write(this.buffer, 0, this.buffer.Length); - } - - /// <summary> - /// Writes audio data from memory to isolated storage - /// </summary> - /// <returns></returns> - private void SaveAudioClipToLocalStorage() - { - if (memoryStream == null || memoryStream.Length <= 0) - { - return; - } - - long position = memoryStream.Position; - memoryStream.Seek(4, SeekOrigin.Begin); - memoryStream.Write(BitConverter.GetBytes((int)memoryStream.Length - 8), 0, 4); - memoryStream.Seek(40, SeekOrigin.Begin); - memoryStream.Write(BitConverter.GetBytes((int)memoryStream.Length - 44), 0, 4); - memoryStream.Seek(position, SeekOrigin.Begin); - - try - { - using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication()) - { - string directory = Path.GetDirectoryName(audioFile); - - if (!isoFile.DirectoryExists(directory)) - { - isoFile.CreateDirectory(directory); - } - - this.memoryStream.Seek(0, SeekOrigin.Begin); - - using (IsolatedStorageFileStream fileStream = isoFile.CreateFile(audioFile)) - { - this.memoryStream.CopyTo(fileStream); - } - } - } - catch (Exception) - { - //TODO: log or do something else - throw; - } - } - - #region Xna loop - /// <summary> - /// Special initialization required for the microphone: XNA game loop - /// </summary> - private void InitializeXnaGameLoop() - { - // Timer to simulate the XNA game loop (Microphone is from XNA) - this.dtXna = new DispatcherTimer(); - this.dtXna.Interval = TimeSpan.FromMilliseconds(33); - this.dtXna.Tick += delegate { try { FrameworkDispatcher.Update(); } catch { } }; - this.dtXna.Start(); - } - /// <summary> - /// Finalizes XNA game loop for microphone - /// </summary> - private void FinalizeXnaGameLoop() - { - // Timer to simulate the XNA game loop (Microphone is from XNA) - if (this.dtXna != null) - { - this.dtXna.Stop(); - this.dtXna = null; - } - } - - #endregion - - #endregion - } -} |