/// <summary>
/// Applies an audio encoding to a native audio encoding base structure.
/// </summary>
/// <param name="encoding">The encoding to apply.</param>
/// <param name="baseStruct">The base native structure.</param>
/// <param name="outputTrack">The output track number (0-based).</param>
/// <param name="allocatedMemory">The collection of allocated memory.</param>
/// <returns>The resulting native audio structure.</returns>
private hb_audio_s ConvertAudioBack(AudioEncoding encoding, hb_audio_s baseStruct, int outputTrack, List<IntPtr> allocatedMemory)
{
hb_audio_s nativeAudio = baseStruct;
HBAudioEncoder encoder = Encoders.GetAudioEncoder(encoding.Encoder);
nativeAudio.config.output.track = outputTrack;
nativeAudio.config.output.codec = (uint)encoder.Id;
if (!encoder.IsPassthrough)
{
if (encoding.SampleRateRaw == 0)
{
nativeAudio.config.output.samplerate = nativeAudio.config.input.samplerate;
}
else
{
nativeAudio.config.output.samplerate = encoding.SampleRateRaw;
}
HBMixdown mixdown = Encoders.GetMixdown(encoding.Mixdown);
nativeAudio.config.output.mixdown = mixdown.Id;
if (encoding.EncodeRateType == AudioEncodeRateType.Bitrate)
{
// Disable quality targeting.
nativeAudio.config.output.quality = -1;
if (encoding.Bitrate == 0)
{
// Bitrate of 0 means auto: choose the default for this codec, sample rate and mixdown.
nativeAudio.config.output.bitrate = HBFunctions.hb_get_default_audio_bitrate(
nativeAudio.config.output.codec,
nativeAudio.config.output.samplerate,
nativeAudio.config.output.mixdown);
}
else
{
nativeAudio.config.output.bitrate = encoding.Bitrate;
}
}
else if (encoding.EncodeRateType == AudioEncodeRateType.Quality)
{
// Bitrate of -1 signals quality targeting.
nativeAudio.config.output.bitrate = -1;
nativeAudio.config.output.quality = encoding.Quality;
}
// If this encoder supports compression level, pass it in.
if (encoder.SupportsCompression)
{
nativeAudio.config.output.compression_level = encoding.Compression;
}
nativeAudio.config.output.dynamic_range_compression = encoding.Drc;
nativeAudio.config.output.gain = encoding.Gain;
}
if (!string.IsNullOrEmpty(encoding.Name))
{
IntPtr encodingNamePtr = Marshal.StringToHGlobalAnsi(encoding.Name);
nativeAudio.config.output.name = encodingNamePtr;
allocatedMemory.Add(encodingNamePtr);
}
nativeAudio.padding = new byte[MarshalingConstants.AudioPaddingBytes];
return nativeAudio;
}
/// <summary>
/// Applies an audio encoding to a native audio encoding base structure.
/// </summary>
/// <param name="encoding">The encoding to apply.</param>
/// <param name="baseStruct">The base native structure.</param>
/// <param name="outputTrack">The output track number (0-based).</param>
/// <param name="allocatedMemory">The collection of allocated memory.</param>
/// <returns>The resulting native audio structure.</returns>
private hb_audio_s ConvertAudioBack(AudioEncoding encoding, hb_audio_s baseStruct, int outputTrack, List<IntPtr> allocatedMemory)
{
hb_audio_s nativeAudio = baseStruct;
HBAudioEncoder encoder = Encoders.GetAudioEncoder(encoding.Encoder);
if (encoder == null)
{
throw new InvalidOperationException("Could not find audio encoder " + encoding.Name);
}
bool isPassthrough = encoder.IsPassthrough;
HBAudioEncoder inputCodec = Encoders.GetAudioEncoder((int)baseStruct.config.input.codec);
uint outputCodec = (uint)encoder.Id;
if (encoding.PassthroughIfPossible &&
(encoder.Id == baseStruct.config.input.codec ||
inputCodec != null && (inputCodec.ShortName.ToLowerInvariant().Contains("aac") && encoder.ShortName.ToLowerInvariant().Contains("aac") ||
inputCodec.ShortName.ToLowerInvariant().Contains("mp3") && encoder.ShortName.ToLowerInvariant().Contains("mp3"))) &&
(inputCodec.Id & NativeConstants.HB_ACODEC_PASS_MASK) > 0)
{
outputCodec = baseStruct.config.input.codec | NativeConstants.HB_ACODEC_PASS_FLAG;
isPassthrough = true;
}
nativeAudio.config.output.track = outputTrack;
nativeAudio.config.output.codec = outputCodec;
nativeAudio.config.output.compression_level = -1;
nativeAudio.config.output.samplerate = nativeAudio.config.input.samplerate;
nativeAudio.config.output.dither_method = -1;
if (!isPassthrough)
{
if (encoding.SampleRateRaw != 0)
{
nativeAudio.config.output.samplerate = encoding.SampleRateRaw;
}
HBMixdown mixdown = Encoders.GetMixdown(encoding.Mixdown);
nativeAudio.config.output.mixdown = mixdown.Id;
if (encoding.EncodeRateType == AudioEncodeRateType.Bitrate)
{
// Disable quality targeting.
nativeAudio.config.output.quality = -3;
if (encoding.Bitrate == 0)
{
// Bitrate of 0 means auto: choose the default for this codec, sample rate and mixdown.
nativeAudio.config.output.bitrate = HBFunctions.hb_audio_bitrate_get_default(
nativeAudio.config.output.codec,
nativeAudio.config.output.samplerate,
nativeAudio.config.output.mixdown);
}
else
{
nativeAudio.config.output.bitrate = encoding.Bitrate;
}
}
else if (encoding.EncodeRateType == AudioEncodeRateType.Quality)
{
// Bitrate of -1 signals quality targeting.
nativeAudio.config.output.bitrate = -1;
nativeAudio.config.output.quality = encoding.Quality;
}
// If this encoder supports compression level, pass it in.
if (encoder.SupportsCompression)
{
nativeAudio.config.output.compression_level = encoding.Compression;
}
nativeAudio.config.output.dynamic_range_compression = encoding.Drc;
nativeAudio.config.output.gain = encoding.Gain;
}
if (!string.IsNullOrEmpty(encoding.Name))
{
IntPtr encodingNamePtr = Marshal.StringToHGlobalAnsi(encoding.Name);
nativeAudio.config.output.name = encodingNamePtr;
allocatedMemory.Add(encodingNamePtr);
}
if (nativeAudio.padding == null)
{
nativeAudio.padding = new byte[MarshalingConstants.AudioPaddingBytes];
}
return nativeAudio;
}
/// <summary>
/// Applies an audio encoding to a native audio encoding base structure.
/// </summary>
/// <param name="encoding">The encoding to apply.</param>
/// <param name="baseStruct">The base native structure.</param>
/// <param name="outputTrack">The output track number (0-based).</param>
/// <param name="allocatedMemory">The collection of allocated memory.</param>
/// <returns>The resulting native audio structure.</returns>
private hb_audio_s ConvertAudioBack(AudioEncoding encoding, hb_audio_s baseStruct, int outputTrack, List<IntPtr> allocatedMemory)
{
hb_audio_s nativeAudio = baseStruct;
nativeAudio.config.output.track = outputTrack;
if (encoding.Encoder == AudioEncoder.Passthrough)
{
// If we've been given a general "Passthrough" codec, see if it's valid for this input track.
uint audioCodec = baseStruct.config.input.codec & NativeConstants.HB_ACODEC_PASS_MASK;
if (audioCodec > 0)
{
// We can do passthrough for this input.
//nativeAudio.config.output.codec = NativeConstants.HB_ACODEC_PASS_MASK | NativeConstants.HB_ACODEC_PASS_FLAG;
nativeAudio.config.output.codec = audioCodec | NativeConstants.HB_ACODEC_PASS_FLAG;
}
else
{
// We can't do passthrough for this input. Set it to a DTS passthrough, which will cause the track to be dropped.
nativeAudio.config.output.codec = NativeConstants.HB_ACODEC_DCA_PASS;
}
}
else
{
nativeAudio.config.output.codec = Converters.AudioEncoderToNative(encoding.Encoder);
}
if (!Utilities.IsPassthrough(encoding.Encoder))
{
nativeAudio.config.output.bitrate = encoding.Bitrate;
nativeAudio.config.output.dynamic_range_compression = encoding.Drc;
nativeAudio.config.output.gain = encoding.Gain;
if (encoding.Mixdown == Mixdown.Auto)
{
nativeAudio.config.output.mixdown = HBFunctions.hb_get_default_mixdown(nativeAudio.config.output.codec, nativeAudio.config.input.channel_layout);
}
else
{
nativeAudio.config.output.mixdown = Converters.MixdownToNative(encoding.Mixdown);
}
if (encoding.SampleRateRaw == 0)
{
nativeAudio.config.output.samplerate = nativeAudio.config.input.samplerate;
}
else
{
nativeAudio.config.output.samplerate = encoding.SampleRateRaw;
}
}
if (!string.IsNullOrEmpty(encoding.Name))
{
IntPtr encodingNamePtr = Marshal.StringToHGlobalAnsi(encoding.Name);
nativeAudio.config.output.name = encodingNamePtr;
allocatedMemory.Add(encodingNamePtr);
}
nativeAudio.padding = new byte[MarshalingConstants.AudioPaddingBytes];
return nativeAudio;
}
/// <summary>
/// Applies an audio encoding to a native audio encoding base structure.
/// </summary>
/// <param name="encoding">The encoding to apply.</param>
/// <param name="baseStruct">The base native structure.</param>
/// <param name="outputTrack">The output track number (0-based).</param>
/// <param name="allocatedMemory">The collection of allocated memory.</param>
/// <returns>The resulting native audio structure.</returns>
private hb_audio_s ConvertAudioBack(AudioEncoding encoding, hb_audio_s baseStruct, int outputTrack, List<IntPtr> allocatedMemory)
{
hb_audio_s nativeAudio = baseStruct;
nativeAudio.config.output.track = outputTrack;
nativeAudio.config.output.codec = Converters.AudioEncoderToNative(encoding.Encoder);
if (!Utilities.IsPassthrough(encoding.Encoder))
{
nativeAudio.config.output.bitrate = encoding.Bitrate;
nativeAudio.config.output.dynamic_range_compression = encoding.Drc;
nativeAudio.config.output.gain = encoding.Gain;
if (encoding.Mixdown == Mixdown.Auto)
{
nativeAudio.config.output.mixdown = HBFunctions.hb_get_default_mixdown(nativeAudio.config.output.codec, nativeAudio.config.input.channel_layout);
}
else
{
nativeAudio.config.output.mixdown = Converters.MixdownToNative(encoding.Mixdown);
}
if (encoding.SampleRateRaw == 0)
{
nativeAudio.config.output.samplerate = nativeAudio.config.input.samplerate;
}
else
{
nativeAudio.config.output.samplerate = encoding.SampleRateRaw;
}
}
if (!string.IsNullOrEmpty(encoding.Name))
{
IntPtr encodingNamePtr = Marshal.StringToHGlobalAnsi(encoding.Name);
nativeAudio.config.output.name = encodingNamePtr;
allocatedMemory.Add(encodingNamePtr);
}
nativeAudio.padding = new byte[MarshalingConstants.AudioPaddingBytes];
return nativeAudio;
}
