1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 #if !defined(AOMDecoder_h_) 7 # define AOMDecoder_h_ 8 9 # include "PlatformDecoderModule.h" 10 # include "mozilla/Span.h" 11 12 # include <stdint.h> 13 # include "aom/aom_decoder.h" 14 15 namespace mozilla { 16 17 DDLoggedTypeDeclNameAndBase(AOMDecoder, MediaDataDecoder); 18 19 class AOMDecoder : public MediaDataDecoder, 20 public DecoderDoctorLifeLogger<AOMDecoder> { 21 public: 22 explicit AOMDecoder(const CreateDecoderParams& aParams); 23 24 RefPtr<InitPromise> Init() override; 25 RefPtr<DecodePromise> Decode(MediaRawData* aSample) override; 26 RefPtr<DecodePromise> Drain() override; 27 RefPtr<FlushPromise> Flush() override; 28 RefPtr<ShutdownPromise> Shutdown() override; GetDescriptionName()29 nsCString GetDescriptionName() const override { 30 return NS_LITERAL_CSTRING("av1 libaom video decoder"); 31 } 32 33 // Return true if aMimeType is a one of the strings used 34 // by our demuxers to identify AV1 streams. 35 static bool IsAV1(const nsACString& aMimeType); 36 37 // Return true if a sample is a keyframe. 38 static bool IsKeyframe(Span<const uint8_t> aBuffer); 39 40 // Return the frame dimensions for a sample. 41 static gfx::IntSize GetFrameSize(Span<const uint8_t> aBuffer); 42 43 private: 44 ~AOMDecoder(); 45 RefPtr<DecodePromise> ProcessDecode(MediaRawData* aSample); 46 47 const RefPtr<layers::ImageContainer> mImageContainer; 48 const RefPtr<TaskQueue> mTaskQueue; 49 50 // AOM decoder state 51 aom_codec_ctx_t mCodec; 52 53 const VideoInfo& mInfo; 54 }; 55 56 } // namespace mozilla 57 58 #endif // AOMDecoder_h_ 59