Line data    Source code

       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(TheoraDecoder_h_)
       7             : #define TheoraDecoder_h_
       8             : 
       9             : #include "PlatformDecoderModule.h"
      10             : #include "ogg/ogg.h"
      11             : #include "theora/theoradec.h"
      12             : #include <stdint.h>
      13             : 
      14             : namespace mozilla {
      15             : 
      16             : class TheoraDecoder : public MediaDataDecoder
      17             : {
      18             : public:
      19             :   explicit TheoraDecoder(const CreateDecoderParams& aParams);
      20             : 
      21             :   RefPtr<InitPromise> Init() override;
      22             :   RefPtr<DecodePromise> Decode(MediaRawData* aSample) override;
      23             :   RefPtr<DecodePromise> Drain() override;
      24             :   RefPtr<FlushPromise> Flush() override;
      25             :   RefPtr<ShutdownPromise> Shutdown() override;
      26             : 
      27             :   // Return true if mimetype is a Theora codec
      28             :   static bool IsTheora(const nsACString& aMimeType);
      29             : 
      30           0 :   const char* GetDescriptionName() const override
      31             :   {
      32           0 :     return "theora video decoder";
      33             :   }
      34             : 
      35             : private:
      36             :   ~TheoraDecoder();
      37             :   nsresult DoDecodeHeader(const unsigned char* aData, size_t aLength);
      38             : 
      39             :   RefPtr<DecodePromise> ProcessDecode(MediaRawData* aSample);
      40             : 
      41             :   RefPtr<layers::KnowsCompositor> mImageAllocator;
      42             :   RefPtr<layers::ImageContainer> mImageContainer;
      43             :   RefPtr<TaskQueue> mTaskQueue;
      44             : 
      45             :   // Theora header & decoder state
      46             :   th_info mTheoraInfo;
      47             :   th_comment mTheoraComment;
      48             :   th_setup_info *mTheoraSetupInfo;
      49             :   th_dec_ctx *mTheoraDecoderContext;
      50             :   int mPacketCount;
      51             : 
      52             :   const VideoInfo& mInfo;
      53             : };
      54             : 
      55             : } // namespace mozilla
      56             : 
      57             : #endif