1 files changed, 56 insertions, 0 deletions
diff --git a/dom/media/platforms/wrappers/AudioTrimmer.h b/dom/media/platforms/wrappers/AudioTrimmer.h
new file mode 100644
index 0000000000..e841a5919f
--- /dev/null
+++ b/dom/media/platforms/wrappers/AudioTrimmer.h
@@ -0,0 +1,56 @@
+/* -*- 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. aRaw can be null as it's only
+  // used for logging purposes.
+  RefPtr<DecodePromise> HandleDecodedResult(
+      DecodePromise::ResolveOrRejectValue&& aValue, MediaRawData* aRaw);
+  void PrepareTrimmers(MediaRawData* aRaw);
+  const RefPtr<MediaDataDecoder> mDecoder;
+  nsCOMPtr<nsISerialEventTarget> mThread;
+  AutoTArray<Maybe<media::TimeInterval>, 2> mTrimmers;
+};
+
+}  // namespace mozilla
+
+#endif  // AudioTrimmer_h_