diff options
Diffstat (limited to 'win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs')
| -rw-r--r-- | win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs | 198 |
1 files changed, 80 insertions, 118 deletions
diff --git a/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs b/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs index 4c358da69..908afe250 100644 --- a/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs +++ b/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeUtils.cs @@ -4,12 +4,14 @@ // </copyright>
// <summary>
// Defines the HandBrakeUtils type.
-// </summary>
-// --------------------------------------------------------------------------------------------------------------------
-
-namespace HandBrake.Interop
-{
- using System;
+// </summary> +// -------------------------------------------------------------------------------------------------------------------- + +using System.Runtime.InteropServices; + +namespace HandBrake.Interop +{ + using System; using System.Collections.Generic;
using HandBrake.Interop.HbLib;
@@ -111,72 +113,12 @@ namespace HandBrake.Interop System.Diagnostics.Debug.WriteLine("ERROR: " + message);
}
- }
-
- /// <summary>
- /// Gets the default mixdown for the given audio encoder and channel layout.
- /// </summary>
- /// <param name="encoder">The output codec to be used.</param>
- /// <param name="layout">The input channel layout.</param>
- /// <returns>The default mixdown for the given codec and channel layout.</returns>
- public static Mixdown GetDefaultMixdown(AudioEncoder encoder, int layout)
- {
- int defaultMixdown = HBFunctions.hb_get_default_mixdown(Converters.AudioEncoderToNative(encoder), layout);
- return Converters.NativeToMixdown(defaultMixdown);
- }
-
- /// <summary>
- /// Gets the bitrate limits for the given audio codec, sample rate and mixdown.
- /// </summary>
- /// <param name="encoder">The audio encoder used.</param>
- /// <param name="sampleRate">The sample rate used (Hz).</param>
- /// <param name="mixdown">The mixdown used.</param>
- /// <returns>Limits on the audio bitrate for the given settings.</returns>
- public static Limits GetBitrateLimits(AudioEncoder encoder, int sampleRate, Mixdown mixdown)
- {
- if (mixdown == Mixdown.Auto)
- {
- throw new ArgumentException("Mixdown cannot be Auto.");
- }
-
- int low = 0;
- int high = 0;
-
- HBFunctions.hb_get_audio_bitrate_limits(Converters.AudioEncoderToNative(encoder), sampleRate, Converters.MixdownToNative(mixdown), ref low, ref high);
-
- return new Limits { Low = low, High = high };
- }
-
- /// <summary>
- /// Sanitizes a mixdown given the output codec and input channel layout.
- /// </summary>
- /// <param name="mixdown">The desired mixdown.</param>
- /// <param name="encoder">The output encoder to be used.</param>
- /// <param name="layout">The input channel layout.</param>
- /// <returns>A sanitized mixdown value.</returns>
- public static Mixdown SanitizeMixdown(Mixdown mixdown, AudioEncoder encoder, int layout)
- {
- int sanitizedMixdown = HBFunctions.hb_get_best_mixdown(Converters.AudioEncoderToNative(encoder), layout, Converters.MixdownToNative(mixdown));
- return Converters.NativeToMixdown(sanitizedMixdown);
- }
-
- /// <summary>
- /// Sanitizes an audio bitrate given the output codec, sample rate and mixdown.
- /// </summary>
- /// <param name="audioBitrate">The desired audio bitrate.</param>
- /// <param name="encoder">The output encoder to be used.</param>
- /// <param name="sampleRate">The output sample rate to be used.</param>
- /// <param name="mixdown">The mixdown to be used.</param>
- /// <returns>A sanitized audio bitrate.</returns>
- public static int SanitizeAudioBitrate(int audioBitrate, AudioEncoder encoder, int sampleRate, Mixdown mixdown)
- {
- return HBFunctions.hb_get_best_audio_bitrate(Converters.AudioEncoderToNative(encoder), audioBitrate, sampleRate, Converters.MixdownToNative(mixdown));
- }
-
- /// <summary>
- /// Gets the total number of seconds on the given encode job.
- /// </summary>
- /// <param name="job">The encode job to query.</param>
+ } + + /// <summary> + /// Gets the total number of seconds on the given encode job. + /// </summary> + /// <param name="job">The encode job to query.</param> /// <param name="title">The title being encoded.</param>
/// <returns>The total number of seconds of video to encode.</returns>
internal static double GetJobLengthSeconds(EncodeJob job, Title title)
@@ -200,37 +142,37 @@ namespace HandBrake.Interop return 0;
}
- /// <summary>
- /// Gets the number of audio samples used per frame for the given audio encoder.
- /// </summary>
- /// <param name="encoder">The encoder to query.</param>
- /// <returns>The number of audio samples used per frame for the given
- /// audio encoder.</returns>
- internal static int GetAudioSamplesPerFrame(AudioEncoder encoder)
- {
- switch (encoder)
- {
- case AudioEncoder.Faac:
- case AudioEncoder.ffaac:
- case AudioEncoder.AacPassthru:
- case AudioEncoder.Vorbis:
- return 1024;
- case AudioEncoder.Lame:
- case AudioEncoder.Mp3Passthru:
- return 1152;
- case AudioEncoder.Ac3:
- case AudioEncoder.Passthrough:
- case AudioEncoder.Ac3Passthrough:
- case AudioEncoder.DtsPassthrough:
- case AudioEncoder.DtsHDPassthrough:
- return 1536;
- }
-
- System.Diagnostics.Debug.Assert(true, "Audio encoder unrecognized.");
- return 0;
- }
-
- /// <summary>
+ /// <summary> + /// Gets the number of audio samples used per frame for the given audio encoder. + /// </summary> + /// <param name="encoderName">The encoder to query.</param> + /// <returns>The number of audio samples used per frame for the given + /// audio encoder.</returns> + internal static int GetAudioSamplesPerFrame(string encoderName) + { + switch (encoderName) + { + case "faac": + case "ffaac": + case "copy:aac": + case "vorbis": + return 1024; + case "lame": + case "copy:mp3": + return 1152; + case "ffac3": + case "copy": + case "copy:ac3": + case "copy:dts": + case "copy:dtshd": + return 1536; + } + + // Unknown encoder; make a guess. + return 1536; + } + + /// <summary> /// Gets the size in bytes for the audio with the given parameters.
/// </summary>
/// <param name="job">The encode job.</param>
@@ -247,21 +189,41 @@ namespace HandBrake.Interop AudioEncoding encoding = outputTrack.Item1;
AudioTrack track = title.AudioTracks[outputTrack.Item2 - 1];
- int samplesPerFrame = HandBrakeUtils.GetAudioSamplesPerFrame(encoding.Encoder);
- int audioBitrate;
-
- if (Utilities.IsPassthrough(encoding.Encoder))
- {
- // Input bitrate is in bits/second.
- audioBitrate = track.Bitrate / 8;
- }
- else
- {
- // Output bitrate is in kbps.
- audioBitrate = encoding.Bitrate * 1000 / 8;
- }
-
- audioBytes += (long)(lengthSeconds * audioBitrate);
+ int samplesPerFrame = HandBrakeUtils.GetAudioSamplesPerFrame(encoding.Encoder); + int audioBitrate; + + HBAudioEncoder audioEncoder = Encoders.GetAudioEncoder(encoding.Encoder); + + if (audioEncoder.IsPassthrough) + { + // Input bitrate is in bits/second. + audioBitrate = track.Bitrate / 8; + } + else if (encoding.EncodeRateType == AudioEncodeRateType.Quality) + { + // Can't predict size of quality targeted audio encoding. + audioBitrate = 0; + } + else + { + int outputBitrate; + if (encoding.Bitrate > 0) + { + outputBitrate = encoding.Bitrate; + } + else + { + outputBitrate = Encoders.GetDefaultBitrate( + audioEncoder, + encoding.SampleRateRaw == 0 ? track.SampleRate : encoding.SampleRateRaw, + Encoders.SanitizeMixdown(Encoders.GetMixdown(encoding.Mixdown), audioEncoder, track.ChannelLayout)); + } + + // Output bitrate is in kbps. + audioBitrate = outputBitrate * 1000 / 8; + } + + audioBytes += (long)(lengthSeconds * audioBitrate); // Audio overhead
audioBytes += encoding.SampleRateRaw * ContainerOverheadPerFrame / samplesPerFrame;
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