AudioTrimmer.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/. */

#if !defined(AudioTrimmer_h_)

#  define AudioTrimmer_h_

#  include "PlatformDecoderModule.h"

#  include "mozilla/Mutex.h"

namespace mozilla {

DDLoggedTypeDeclNameAndBase(AudioTrimmer, MediaDataDecoder);

class AudioTrimmer final : public MediaDataDecoder {

 public:

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioTrimmer, final);

  AudioTrimmer(already_AddRefed<MediaDataDecoder> aDecoder,

               const CreateDecoderParams& aParams)

      : mDecoder(aDecoder) {}

  RefPtr<InitPromise> Init() override;

  RefPtr<DecodePromise> Decode(MediaRawData* aSample) override;

  bool CanDecodeBatch() const override { return mDecoder->CanDecodeBatch(); }

  RefPtr<DecodePromise> DecodeBatch(

      nsTArray<RefPtr<MediaRawData>>&& aSamples) override;

  RefPtr<DecodePromise> Drain() override;

  RefPtr<FlushPromise> Flush() override;

  RefPtr<ShutdownPromise> Shutdown() override;

  nsCString GetDescriptionName() const override;

  nsCString GetProcessName() const override;

  nsCString GetCodecName() const override;

  bool IsHardwareAccelerated(nsACString& aFailureReason) const override;

  void SetSeekThreshold(const media::TimeUnit& aTime) override;

  bool SupportDecoderRecycling() const override;

  ConversionRequired NeedsConversion() const override;

 private:

  ~AudioTrimmer() = default;

  // Apply trimming information on decoded data.

  RefPtr<DecodePromise> HandleDecodedResult(

      DecodePromise::ResolveOrRejectValue&& aValue);

  void PrepareTrimmers(MediaRawData* aRaw);

  const RefPtr<MediaDataDecoder> mDecoder;

  nsCOMPtr<nsISerialEventTarget> mThread;

  AutoTArray<Maybe<media::TimeInterval>, 2> mTrimmers;

};

}  // namespace mozilla

#endif  // AudioTrimmer_h_