EncoderTypes.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_EncoderTypes_h

#define mozilla_dom_EncoderTypes_h

#include "mozilla/Maybe.h"

#include "mozilla/dom/EncodedVideoChunk.h"

#include "mozilla/dom/MediaRecorderBinding.h"

#include "mozilla/dom/VideoEncoderBinding.h"

#include "mozilla/dom/AudioEncoderBinding.h"

#include "mozilla/dom/VideoFrame.h"

#include "mozilla/dom/VideoFrameBinding.h"

#include "nsStringFwd.h"

#include "nsTLiteralString.h"

#include "VideoDecoder.h"

namespace mozilla {

class TrackInfo;

class MediaByteBuffer;

namespace dom {

class AudioEncoderConfigInternal {

 public:

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioEncoderConfigInternal);

  explicit AudioEncoderConfigInternal(const AudioEncoderConfig& aConfig);

  explicit AudioEncoderConfigInternal(

      const AudioEncoderConfigInternal& aConfig);

  void SetSpecific(const EncoderConfig::CodecSpecific& aSpecific);

  nsCString ToString() const;

  bool Equals(const AudioEncoderConfigInternal& aOther) const;

  bool CanReconfigure(const AudioEncoderConfigInternal& aOther) const;

  // Returns an EncoderConfig struct with as many filled members as

  // possible.

  EncoderConfig ToEncoderConfig() const;

  already_AddRefed<WebCodecsConfigurationChangeList> Diff(

      const AudioEncoderConfigInternal& aOther) const;

  nsString mCodec;

  Maybe<uint32_t> mSampleRate;

  Maybe<uint32_t> mNumberOfChannels;

  Maybe<uint32_t> mBitrate;

  BitrateMode mBitrateMode;

  Maybe<EncoderConfig::CodecSpecific> mSpecific;

 private:

  AudioEncoderConfigInternal(const nsAString& aCodec,

                             Maybe<uint32_t> aSampleRate,

                             Maybe<uint32_t> aNumberOfChannels,

                             Maybe<uint32_t> aBitRate,

                             BitrateMode aBitratemode);

  ~AudioEncoderConfigInternal() = default;

};

class AudioEncoderTraits {

 public:

  static constexpr nsLiteralCString Name = "AudioEncoder"_ns;

  using ConfigType = AudioEncoderConfig;

  using ConfigTypeInternal = AudioEncoderConfigInternal;

  using InputType = dom::AudioData;

  using OutputConfigType = mozilla::dom::AudioDecoderConfigInternal;

  using InputTypeInternal = mozilla::AudioData;

  using OutputType = EncodedAudioChunk;

  using OutputCallbackType = EncodedAudioChunkOutputCallback;

  using MetadataType = EncodedAudioChunkMetadata;

  static bool IsSupported(const ConfigTypeInternal& aConfig);

  static Result<UniquePtr<TrackInfo>, nsresult> CreateTrackInfo(

      const ConfigTypeInternal& aConfig);

  static bool Validate(const ConfigType& aConfig, nsCString& aErrorMessage);

  static RefPtr<ConfigTypeInternal> CreateConfigInternal(

      const ConfigType& aConfig);

  static RefPtr<InputTypeInternal> CreateInputInternal(

      const InputType& aInput, const VideoEncoderEncodeOptions& aOptions);

  static already_AddRefed<OutputConfigType> EncoderConfigToDecoderConfig(

      nsIGlobalObject* aGlobal, const RefPtr<MediaRawData>& aData,

      const ConfigTypeInternal& mOutputConfig);

};

class VideoEncoderConfigInternal {

 public:

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VideoEncoderConfigInternal);

  explicit VideoEncoderConfigInternal(const VideoEncoderConfig& aConfig);

  explicit VideoEncoderConfigInternal(

      const VideoEncoderConfigInternal& aConfig);

  // Returns an EncoderConfig struct with as many filled members as

  // possible.

  // TODO: handle codec specific things

  EncoderConfig ToEncoderConfig() const;

  bool Equals(const VideoEncoderConfigInternal& aOther) const;

  bool CanReconfigure(const VideoEncoderConfigInternal& aOther) const;

  already_AddRefed<WebCodecsConfigurationChangeList> Diff(

      const VideoEncoderConfigInternal& aOther) const;

  nsCString ToString() const;

  nsString mCodec;

  uint32_t mWidth;

  uint32_t mHeight;

  Maybe<uint32_t> mDisplayWidth;

  Maybe<uint32_t> mDisplayHeight;

  Maybe<uint32_t> mBitrate;

  Maybe<double> mFramerate;

  HardwareAcceleration mHardwareAcceleration;

  AlphaOption mAlpha;

  Maybe<nsString> mScalabilityMode;

  VideoEncoderBitrateMode mBitrateMode;

  LatencyMode mLatencyMode;

  Maybe<nsString> mContentHint;

  Maybe<AvcEncoderConfig> mAvc;

 private:

  VideoEncoderConfigInternal(

      const nsAString& aCodec, uint32_t aWidth, uint32_t aHeight,

      Maybe<uint32_t>&& aDisplayWidth, Maybe<uint32_t>&& aDisplayHeight,

      Maybe<uint32_t>&& aBitrate, Maybe<double>&& aFramerate,

      const HardwareAcceleration& aHardwareAcceleration,

      const AlphaOption& aAlpha, Maybe<nsString>&& aScalabilityMode,

      const VideoEncoderBitrateMode& aBitrateMode,

      const LatencyMode& aLatencyMode, Maybe<nsString>&& aContentHint);

  ~VideoEncoderConfigInternal() = default;

};

class VideoEncoderTraits {

 public:

  static constexpr nsLiteralCString Name = "VideoEncoder"_ns;

  using ConfigType = VideoEncoderConfig;

  using ConfigTypeInternal = VideoEncoderConfigInternal;

  using InputType = dom::VideoFrame;

  using InputTypeInternal = mozilla::VideoData;

  using OutputConfigType = mozilla::dom::VideoDecoderConfigInternal;

  using OutputType = EncodedVideoChunk;

  using OutputCallbackType = EncodedVideoChunkOutputCallback;

  using MetadataType = EncodedVideoChunkMetadata;

  static bool IsSupported(const ConfigTypeInternal& aConfig);

  static bool CanEncodeVideo(const ConfigTypeInternal& aConfig);

  static bool Validate(const ConfigType& aConfig, nsCString& aErrorMessage);

  static RefPtr<ConfigTypeInternal> CreateConfigInternal(

      const ConfigType& aConfig);

  static RefPtr<InputTypeInternal> CreateInputInternal(

      const InputType& aInput, const VideoEncoderEncodeOptions& aOptions);

  static already_AddRefed<OutputConfigType> EncoderConfigToDecoderConfig(

      nsIGlobalObject* aGlobal, const RefPtr<MediaRawData>& aData,

      const ConfigTypeInternal& mOutputConfig);

};

}  // namespace dom

}  // namespace mozilla

#endif  // mozilla_dom_EncoderTypes_h