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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="AudioViewModel.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// The Audio View Model
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel.Composition;
using System.Linq;
using Caliburn.Micro;
using HandBrake.ApplicationServices.Functions;
using HandBrake.ApplicationServices.Model;
using HandBrake.ApplicationServices.Model.Encoding;
using HandBrake.ApplicationServices.Parsing;
using HandBrake.ApplicationServices.Services.Interfaces;
using HandBrake.Interop.Model.Encoding;
using HandBrakeWPF.ViewModels.Interfaces;
/// <summary>
/// The Audio View Model
/// </summary>
[Export(typeof(IAudioViewModel))]
public class AudioViewModel : ViewModelBase, IAudioViewModel
{
/// <summary>
/// Initializes a new instance of the <see cref="AudioViewModel"/> class.
/// </summary>
/// <param name="windowManager">
/// The window manager.
/// </param>
/// <param name="userSettingService">
/// The user Setting Service.
/// </param>
public AudioViewModel(IWindowManager windowManager, IUserSettingService userSettingService)
{
this.AudioTracks = new ObservableCollection<AudioTrack>();
this.SampleRates = new ObservableCollection<string> { "Auto", "48", "44.1", "32", "24", "22.05" };
this.AudioBitrates = this.GetAppropiateBitrates(AudioEncoder.ffaac, Mixdown.DolbyProLogicII);
this.AudioEncoders = EnumHelper<AudioEncoder>.GetEnumList();
this.AudioMixdowns = EnumHelper<Mixdown>.GetEnumList();
}
/// <summary>
/// Gets or sets AudioTracks.
/// </summary>
public ObservableCollection<AudioTrack> AudioTracks { get; set; }
/// <summary>
/// Gets or sets SourceTracks.
/// </summary>
public IEnumerable<Audio> SourceTracks { get; set; }
/// <summary>
/// Gets or sets AudioEncoders.
/// </summary>
public IEnumerable<AudioEncoder> AudioEncoders { get; set; }
/// <summary>
/// Gets or sets AudioMixdowns.
/// </summary>
public IEnumerable<Mixdown> AudioMixdowns { get; set; }
/// <summary>
/// Gets or sets SampleRates.
/// </summary>
public IEnumerable<string> SampleRates { get; set; }
/// <summary>
/// Gets or sets AudioBitrates.
/// </summary>
public IEnumerable<int> AudioBitrates { get; set; }
/// <summary>
/// Add an Audio Track
/// </summary>
public void Add()
{
if (SourceTracks != null)
{
Audio track = this.SourceTracks.FirstOrDefault();
if (track != null)
{
this.AudioTracks.Add(new AudioTrack { ScannedTrack = track });
}
}
}
/// <summary>
/// Remove the Selected Track
/// </summary>
/// <param name="track">
/// The track.
/// </param>
public void Remove(AudioTrack track)
{
this.AudioTracks.Remove(track);
}
/// <summary>
/// Set the Source Title
/// </summary>
/// <param name="title">
/// The title.
/// </param>
/// <param name="preset">
/// The preset.
/// </param>
/// <param name="task">
/// The task.
/// </param>
public void SetSource(Title title, Preset preset, EncodeTask task)
{
this.SourceTracks = title.AudioTracks;
}
/// <summary>
/// Setup this tab for the specified preset.
/// </summary>
/// <param name="preset">
/// The preset.
/// </param>
public void SetPreset(Preset preset)
{
if (preset != null && preset.Task != null)
{
// Store the previously selected tracks
List<Audio> selectedTracks = this.AudioTracks.Select(track => track.ScannedTrack).ToList();
this.AudioTracks.Clear();
// Add the tracks from the preset
foreach (AudioTrack track in preset.Task.AudioTracks)
{
this.AudioTracks.Add(new AudioTrack(track));
}
// Attempt to restore the previously selected tracks.
// or fallback to the first source track.
foreach (AudioTrack track in this.AudioTracks)
{
if (selectedTracks.Count != 0)
{
track.ScannedTrack = selectedTracks[0];
selectedTracks.RemoveAt(0);
}
else
{
if (this.SourceTracks != null)
{
track.ScannedTrack = this.SourceTracks.FirstOrDefault();
}
}
}
}
}
/// <summary>
/// Get Appropiate Bitrates for the selected encoder and mixdown.
/// </summary>
/// <param name="encoder">
/// The encoder.
/// </param>
/// <param name="mixdown">
/// The mixdown.
/// </param>
/// <returns>
/// A List of valid audio bitrates
/// </returns>
private IEnumerable<int> GetAppropiateBitrates(AudioEncoder encoder, Mixdown mixdown)
{
return new ObservableCollection<int> { 32, 40, 48, 56, 64, 80, 96, 112, 128, 160 };
}
}
}
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