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Diffstat (limited to 'win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeEncoderHelpers.cs')
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1 files changed, 529 insertions, 0 deletions
diff --git a/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeEncoderHelpers.cs b/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeEncoderHelpers.cs new file mode 100644 index 000000000..80b1fc3ad --- /dev/null +++ b/win/CS/HandBrake.Interop/HandBrakeInterop/HandBrakeEncoderHelpers.cs @@ -0,0 +1,529 @@ +// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="Encoders.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 encoders.
+// </summary>
+// --------------------------------------------------------------------------------------------------------------------
+
+namespace HandBrake.Interop
+{
+ using System.Collections.Generic;
+ using System.Linq;
+
+ using HandBrake.Interop.HbLib;
+ using HandBrake.Interop.Helpers;
+ using HandBrake.Interop.Model;
+ using HandBrake.Interop.Model.Encoding;
+ using HandBrake.Interop.Model.Scan;
+
+ /// <summary>
+ /// The encoders.
+ /// </summary>
+ public static class HandBrakeEncoderHelpers
+ {
+ /// <summary>
+ /// The audio encoders.
+ /// </summary>
+ private static List<HBAudioEncoder> audioEncoders;
+
+ /// <summary>
+ /// The video encoders.
+ /// </summary>
+ private static List<HBVideoEncoder> videoEncoders;
+
+ /// <summary>
+ /// Video framerates in pts.
+ /// </summary>
+ private static List<HBRate> videoFramerates;
+
+ /// <summary>
+ /// List of HandBrake mixdowns.
+ /// </summary>
+ private static List<HBMixdown> mixdowns;
+
+ /// <summary>
+ /// List of HandBrake containers.
+ /// </summary>
+ private static List<HBContainer> containers;
+
+ /// <summary>
+ /// The audio bitrates.
+ /// </summary>
+ private static List<int> audioBitrates;
+
+ /// <summary>
+ /// Audio sample rates in Hz.
+ /// </summary>
+ private static List<HBRate> audioSampleRates;
+
+ /// <summary>
+ /// Initializes static members of the EncoderHelpers class.
+ /// </summary>
+ static HandBrakeEncoderHelpers()
+ {
+ HandBrakeUtils.EnsureGlobalInit();
+ }
+
+ /// <summary>
+ /// Gets a list of supported audio encoders.
+ /// </summary>
+ public static List<HBAudioEncoder> AudioEncoders
+ {
+ get
+ {
+ if (audioEncoders == null)
+ {
+ audioEncoders = InteropUtilities.ToListFromIterator<hb_encoder_s, HBAudioEncoder>(HBFunctions.hb_audio_encoder_get_next, Converters.Converters.NativeToAudioEncoder);
+ }
+
+ return audioEncoders;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported video encoders.
+ /// </summary>
+ public static List<HBVideoEncoder> VideoEncoders
+ {
+ get
+ {
+ if (videoEncoders == null)
+ {
+ videoEncoders = InteropUtilities.ToListFromIterator<hb_encoder_s, HBVideoEncoder>(HBFunctions.hb_video_encoder_get_next, Converters.Converters.NativeToVideoEncoder);
+ }
+
+ return videoEncoders;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported video framerates (in pts).
+ /// </summary>
+ public static List<HBRate> VideoFramerates
+ {
+ get
+ {
+ if (videoFramerates == null)
+ {
+ videoFramerates = InteropUtilities.ToListFromIterator<hb_rate_s, HBRate>(HBFunctions.hb_video_framerate_get_next, Converters.Converters.NativeToRate);
+ }
+
+ return videoFramerates;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported mixdowns.
+ /// </summary>
+ public static List<HBMixdown> Mixdowns
+ {
+ get
+ {
+ if (mixdowns == null)
+ {
+ mixdowns = InteropUtilities.ToListFromIterator<hb_mixdown_s, HBMixdown>(HBFunctions.hb_mixdown_get_next, Converters.Converters.NativeToMixdown);
+ }
+
+ return mixdowns;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported audio bitrates.
+ /// </summary>
+ public static List<int> AudioBitrates
+ {
+ get
+ {
+ if (audioBitrates == null)
+ {
+ audioBitrates = InteropUtilities.ToListFromIterator<hb_rate_s, int>(HBFunctions.hb_audio_bitrate_get_next, b => b.rate);
+ }
+
+ return audioBitrates;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported audio sample rates (in Hz).
+ /// </summary>
+ public static List<HBRate> AudioSampleRates
+ {
+ get
+ {
+ if (audioSampleRates == null)
+ {
+ audioSampleRates = InteropUtilities.ToListFromIterator<hb_rate_s, HBRate>(HBFunctions.hb_audio_samplerate_get_next, Converters.Converters.NativeToRate);
+ }
+
+ return audioSampleRates;
+ }
+ }
+
+ /// <summary>
+ /// Gets a list of supported containers.
+ /// </summary>
+ public static List<HBContainer> Containers
+ {
+ get
+ {
+ if (containers == null)
+ {
+ containers = InteropUtilities.ToListFromIterator<hb_container_s, HBContainer>(HBFunctions.hb_container_get_next, Converters.Converters.NativeToContainer);
+ }
+
+ return containers;
+ }
+ }
+
+ /// <summary>
+ /// Gets a value indicating whether SRT subtitles can be burnt in.
+ /// </summary>
+ public static bool CanBurnSrt
+ {
+ get
+ {
+ return HBFunctions.hb_subtitle_can_burn((int)hb_subtitle_s_subsource.SRTSUB) > 0;
+ }
+ }
+
+ /// <summary>
+ /// Gets the audio encoder with the specified short name.
+ /// </summary>
+ /// <param name="shortName">
+ /// The name of the audio encoder.
+ /// </param>
+ /// <returns>
+ /// The requested audio encoder.
+ /// </returns>
+ public static HBAudioEncoder GetAudioEncoder(string shortName)
+ {
+ return AudioEncoders.SingleOrDefault(e => e.ShortName == shortName);
+ }
+
+ /// <summary>
+ /// Gets the audio encoder with the specified codec ID.
+ /// </summary>
+ /// <param name="codecId">
+ /// The ID of the audio encoder.
+ /// </param>
+ /// <returns>
+ /// The requested audio encoder.
+ /// </returns>
+ public static HBAudioEncoder GetAudioEncoder(int codecId)
+ {
+ return AudioEncoders.SingleOrDefault(e => e.Id == codecId);
+ }
+
+ /// <summary>
+ /// Gets the video encoder with the specified short name.
+ /// </summary>
+ /// <param name="shortName">
+ /// The name of the video encoder.
+ /// </param>
+ /// <returns>
+ /// The requested video encoder.
+ /// </returns>
+ public static HBVideoEncoder GetVideoEncoder(string shortName)
+ {
+ return VideoEncoders.SingleOrDefault(e => e.ShortName == shortName);
+ }
+
+ /// <summary>
+ /// Gets the mixdown with the specified short name.
+ /// </summary>
+ /// <param name="shortName">
+ /// The name of the mixdown.
+ /// </param>
+ /// <returns>
+ /// The requested mixdown.
+ /// </returns>
+ public static HBMixdown GetMixdown(string shortName)
+ {
+ return Mixdowns.SingleOrDefault(m => m.ShortName == shortName);
+ }
+
+ /// <summary>
+ /// Gets the container with the specified short name.
+ /// </summary>
+ /// <param name="shortName">
+ /// The name of the container.
+ /// </param>
+ /// <returns>
+ /// The requested container.
+ /// </returns>
+ public static HBContainer GetContainer(string shortName)
+ {
+ return Containers.SingleOrDefault(c => c.ShortName == shortName);
+ }
+
+ /// <summary>
+ /// Determines if the given encoder is compatible with the given track.
+ /// </summary>
+ /// <param name="track">
+ /// The audio track to examine.
+ /// </param>
+ /// <param name="encoder">
+ /// The encoder to examine.
+ /// </param>
+ /// <returns>
+ /// True if the given encoder is comatible with the given audio track.
+ /// </returns>
+ /// <remarks>
+ /// Only works with passthrough encoders.
+ /// </remarks>
+ public static bool AudioEncoderIsCompatible(AudioTrack track, HBAudioEncoder encoder)
+ {
+ return (track.CodecId & encoder.Id) > 0;
+ }
+
+ /// <summary>
+ /// Determines if the given mixdown supports the given channel layout.
+ /// </summary>
+ /// <param name="mixdown">
+ /// The mixdown to evaluate.
+ /// </param>
+ /// <param name="layout">
+ /// The channel layout to evaluate.
+ /// </param>
+ /// <returns>
+ /// True if the mixdown supports the given channel layout.
+ /// </returns>
+ public static bool MixdownHasRemixSupport(HBMixdown mixdown, ulong layout)
+ {
+ return HBFunctions.hb_mixdown_has_remix_support(mixdown.Id, layout) > 0;
+ }
+
+ /// <summary>
+ /// Determines if the given encoder supports the given mixdown.
+ /// </summary>
+ /// <param name="mixdown">
+ /// The mixdown to evaluate.
+ /// </param>
+ /// <param name="encoder">
+ /// The encoder to evaluate.
+ /// </param>
+ /// <returns>
+ /// True if the encoder supports the mixdown.
+ /// </returns>
+ public static bool MixdownHasCodecSupport(HBMixdown mixdown, HBAudioEncoder encoder)
+ {
+ return HBFunctions.hb_mixdown_has_codec_support(mixdown.Id, (uint) encoder.Id) > 0;
+ }
+
+ /// <summary>
+ /// Determines if DRC can be applied to the given track with the given encoder.
+ /// </summary>
+ /// <param name="track">
+ /// The track to apply DRC to.
+ /// </param>
+ /// <param name="encoder">
+ /// The encoder to use for DRC.
+ /// </param>
+ /// <returns>
+ /// True if DRC can be applied to the track with the given encoder.
+ /// </returns>
+ public static bool CanApplyDrc(AudioTrack track, HBAudioEncoder encoder)
+ {
+ return HBFunctions.hb_audio_can_apply_drc(track.CodecId, track.CodecParam, encoder.Id) > 0;
+ }
+
+ /// <summary>
+ /// Determines if the given input audio codec can be passed through.
+ /// </summary>
+ /// <param name="codecId">
+ /// The input codec to consider.
+ /// </param>
+ /// <returns>
+ /// True if the codec can be passed through.
+ /// </returns>
+ public static bool CanPassthroughAudio(int codecId)
+ {
+ return (codecId & NativeConstants.HB_ACODEC_PASS_MASK) > 0;
+ }
+
+ /// <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 HBMixdown SanitizeMixdown(HBMixdown mixdown, HBAudioEncoder encoder, ulong layout)
+ {
+ int sanitizedMixdown = HBFunctions.hb_mixdown_get_best((uint)encoder.Id, layout, mixdown.Id);
+ return Mixdowns.Single(m => m.Id == sanitizedMixdown);
+ }
+
+ /// <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 HBMixdown GetDefaultMixdown(HBAudioEncoder encoder, ulong layout)
+ {
+ int defaultMixdown = HBFunctions.hb_mixdown_get_default((uint)encoder.Id, layout);
+ return Mixdowns.Single(m => m.Id == 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 BitrateLimits GetBitrateLimits(HBAudioEncoder encoder, int sampleRate, HBMixdown mixdown)
+ {
+ int low = 0;
+ int high = 0;
+
+ HBFunctions.hb_audio_bitrate_get_limits((uint)encoder.Id, sampleRate, mixdown.Id, ref low, ref high);
+
+ return new BitrateLimits { Low = low, High = high };
+ }
+
+ /// <summary>
+ /// Gets the video quality limits for the given video codec.
+ /// </summary>
+ /// <param name="encoder">
+ /// The video encoder to check.
+ /// </param>
+ /// <returns>
+ /// Limits on the video quality for the encoder.
+ /// </returns>
+ public static VideoQualityLimits GetVideoQualityLimits(HBVideoEncoder encoder)
+ {
+ float low = 0;
+ float high = 0;
+ float granularity = 0;
+ int direction = 0;
+
+ HBFunctions.hb_video_quality_get_limits((uint)encoder.Id, ref low, ref high, ref granularity, ref direction);
+
+ return new VideoQualityLimits
+ {
+ Low = low,
+ High = high,
+ Granularity = granularity,
+ Ascending = direction == 0
+ };
+ }
+
+ /// <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, HBAudioEncoder encoder, int sampleRate, HBMixdown mixdown)
+ {
+ return HBFunctions.hb_audio_bitrate_get_best((uint)encoder.Id, audioBitrate, sampleRate, mixdown.Id);
+ }
+
+ /// <summary>
+ /// Gets the default audio bitrate for the given parameters.
+ /// </summary>
+ /// <param name="encoder">
+ /// The encoder to use.
+ /// </param>
+ /// <param name="sampleRate">
+ /// The sample rate to use.
+ /// </param>
+ /// <param name="mixdown">
+ /// The mixdown to use.
+ /// </param>
+ /// <returns>
+ /// The default bitrate for these parameters.
+ /// </returns>
+ public static int GetDefaultBitrate(HBAudioEncoder encoder, int sampleRate, HBMixdown mixdown)
+ {
+ return HBFunctions.hb_audio_bitrate_get_default((uint) encoder.Id, sampleRate, mixdown.Id);
+ }
+
+ /// <summary>
+ /// Gets limits on audio quality for a given encoder.
+ /// </summary>
+ /// <param name="encoderId">
+ /// The audio encoder ID.
+ /// </param>
+ /// <returns>
+ /// Limits on the audio quality for the given encoder.
+ /// </returns>
+ internal static RangeLimits GetAudioQualityLimits(int encoderId)
+ {
+ float low = 0, high = 0, granularity = 0;
+ int direction = 0;
+ HBFunctions.hb_audio_quality_get_limits((uint)encoderId, ref low, ref high, ref granularity, ref direction);
+
+ return new RangeLimits
+ {
+ Low = low,
+ High = high,
+ Granularity = granularity,
+ Ascending = direction == 0
+ };
+ }
+
+ /// <summary>
+ /// Gets limits on audio compression for a given encoder.
+ /// </summary>
+ /// <param name="encoderId">
+ /// The audio encoder ID.
+ /// </param>
+ /// <returns>
+ /// Limits on the audio compression for the given encoder.
+ /// </returns>
+ internal static RangeLimits GetAudioCompressionLimits(int encoderId)
+ {
+ float low = 0, high = 0, granularity = 0;
+ int direction = 0;
+ HBFunctions.hb_audio_compression_get_limits((uint)encoderId, ref low, ref high, ref granularity, ref direction);
+
+ return new RangeLimits
+ {
+ Low = low,
+ High = high,
+ Granularity = granularity,
+ Ascending = direction == 0
+ };
+ }
+ }
+}
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