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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="Converters.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>
// Defines the Converters type.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrake.Interop
{
using System;
using System.Collections.Generic;
using HandBrake.Interop.HbLib;
using HandBrake.Interop.Model.Encoding;
using HandBrake.Interop.SourceData;
public static class Converters
{
/// <summary>
/// Video Frame Rates
/// </summary>
private static Dictionary<double, int> vrates = new Dictionary<double, int>
{
{5, 5400000},
{10, 2700000},
{12, 2250000},
{15, 1800000},
{23.976, 1126125},
{24, 1125000},
{25, 1080000},
{29.97, 900900}
};
/// <summary>
/// Convert Framerate to Video Rates
/// </summary>
/// <param name="framerate">
/// The framerate.
/// </param>
/// <returns>
/// The vrate if a valid framerate is passed in.
/// </returns>
/// <exception cref="ArgumentException">
/// Thrown when framerate is invalid.
/// </exception>
public static int FramerateToVrate(double framerate)
{
if (!vrates.ContainsKey(framerate))
{
throw new ArgumentException("Framerate not recognized.", "framerate");
}
return vrates[framerate];
}
/// <summary>
/// Convert a Mixdown object to HandBrakes native mixdown constant.
/// </summary>
/// <param name="mixdown">
/// The mixdown.
/// </param>
/// <returns>
/// NativeContstant that represents the mixdown.
/// </returns>
/// <exception cref="ArgumentException">
/// Thrown for an invalid mixodown.
/// </exception>
public static int MixdownToNative(Mixdown mixdown)
{
if (mixdown == Mixdown.Auto)
{
throw new ArgumentException("Cannot convert Auto to native.");
}
switch (mixdown)
{
case Mixdown.DolbyProLogicII:
return NativeConstants.HB_AMIXDOWN_DOLBYPLII;
case Mixdown.DolbySurround:
return NativeConstants.HB_AMIXDOWN_DOLBY;
case Mixdown.Mono:
return NativeConstants.HB_AMIXDOWN_MONO;
case Mixdown.SixChannelDiscrete:
return NativeConstants.HB_AMIXDOWN_6CH;
case Mixdown.Stereo:
return NativeConstants.HB_AMIXDOWN_STEREO;
}
return 0;
}
/// <summary>
/// Convert an native internal handbrake mixdown to a local mixdown enum.
/// </summary>
/// <param name="mixdown">
/// The mixdown.
/// </param>
/// <returns>
/// A mixdown object.
/// </returns>
/// <exception cref="ArgumentException">
/// thrown when mixdown is invalid.
/// </exception>
public static Mixdown NativeToMixdown(int mixdown)
{
switch (mixdown)
{
case NativeConstants.HB_AMIXDOWN_MONO:
return Mixdown.Mono;
case NativeConstants.HB_AMIXDOWN_STEREO:
return Mixdown.Stereo;
case NativeConstants.HB_AMIXDOWN_DOLBY:
return Mixdown.DolbySurround;
case NativeConstants.HB_AMIXDOWN_DOLBYPLII:
return Mixdown.DolbyProLogicII;
case NativeConstants.HB_AMIXDOWN_6CH:
return Mixdown.SixChannelDiscrete;
}
throw new ArgumentException("Unrecognized mixdown: " + mixdown, "mixdown");
}
/// <summary>
/// Gets the native code for the given encoder.
/// </summary>
/// <param name="encoder">The audio encoder to convert. Cannot be AudioEncoder.Passthrough.</param>
/// <returns>The native code for the encoder.</returns>
public static uint AudioEncoderToNative(AudioEncoder encoder)
{
switch (encoder)
{
case AudioEncoder.Ac3Passthrough:
return NativeConstants.HB_ACODEC_AC3_PASS;
case AudioEncoder.Ac3:
return NativeConstants.HB_ACODEC_AC3;
case AudioEncoder.Faac:
return NativeConstants.HB_ACODEC_FAAC;
case AudioEncoder.ffaac:
return NativeConstants.HB_ACODEC_FFAAC;
case AudioEncoder.AacPassthru:
return NativeConstants.HB_ACODEC_AAC_PASS;
case AudioEncoder.Lame:
return NativeConstants.HB_ACODEC_LAME;
case AudioEncoder.Mp3Passthru:
return NativeConstants.HB_ACODEC_MP3_PASS;
case AudioEncoder.DtsPassthrough:
return NativeConstants.HB_ACODEC_DCA_PASS;
case AudioEncoder.DtsHDPassthrough:
return NativeConstants.HB_ACODEC_DCA_HD_PASS;
case AudioEncoder.Vorbis:
return NativeConstants.HB_ACODEC_VORBIS;
}
return 0;
}
/// <summary>
/// Convert Native HB Internal Audio int to a AudioCodec model.
/// </summary>
/// <param name="codec">
/// The codec.
/// </param>
/// <returns>
/// An AudioCodec object.
/// </returns>
public static AudioCodec NativeToAudioCodec(uint codec)
{
switch (codec)
{
case NativeConstants.HB_ACODEC_AC3:
return AudioCodec.Ac3;
case NativeConstants.HB_ACODEC_DCA:
return AudioCodec.Dts;
case NativeConstants.HB_ACODEC_DCA_HD:
return AudioCodec.DtsHD;
case NativeConstants.HB_ACODEC_LAME:
case NativeConstants.HB_ACODEC_MP3:
return AudioCodec.Mp3;
case NativeConstants.HB_ACODEC_FAAC:
case NativeConstants.HB_ACODEC_FFAAC:
case NativeConstants.HB_ACODEC_CA_AAC:
case NativeConstants.HB_ACODEC_CA_HAAC:
return AudioCodec.Aac;
default:
return AudioCodec.Other;
}
}
}
}
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