dom/media/platforms/agnostic/VPXDecoder.h
author JW Wang <jwwang@mozilla.com>
Tue, 17 May 2016 15:26:09 +0800
branch1273405_VorbisDataDecoder_Flush
changeset 370013 8e75fa48f27e31fde3bab85794da064565209a06
parent 370012 47b40fa986d86ce8e18197b9fe53ad62c1016008
child 380721 c2f3674be1f575f407ae0d065ee188c8b8c46857
child 381813 b1a272a1e72c064555fad2740e23e16b82bdc6f1
child 382139 980094c208a9e76abceca9783582929cc4a93179
permissions -rw-r--r--
Bug 1273397. Part 4 - remove use of FlushableTaskQueue. r=jya. MozReview-Commit-ID: CEyfb6Aol9Z

/* -*- 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(VPXDecoder_h_)
#define VPXDecoder_h_

#include "PlatformDecoderModule.h"

#include <stdint.h>
#define VPX_DONT_DEFINE_STDINT_TYPES
#include "vpx/vp8dx.h"
#include "vpx/vpx_codec.h"
#include "vpx/vpx_decoder.h"

namespace mozilla {

using namespace layers;

class VPXDecoder : public MediaDataDecoder
{
public:
  VPXDecoder(const VideoInfo& aConfig,
             ImageContainer* aImageContainer,
             TaskQueue* aTaskQueue,
             MediaDataDecoderCallback* aCallback);

  ~VPXDecoder();

  RefPtr<InitPromise> Init() override;
  nsresult Input(MediaRawData* aSample) override;
  nsresult Flush() override;
  nsresult Drain() override;
  nsresult Shutdown() override;
  const char* GetDescriptionName() const override
  {
    return "libvpx video decoder";
  }

  enum Codec: uint8_t {
    VP8 = 1 << 0,
    VP9 = 1 << 1
  };

  // Return true if mimetype is a VPX codec of given types.
  static bool IsVPX(const nsACString& aMimeType, uint8_t aCodecMask=VP8|VP9);

private:
  void ProcessDecode(MediaRawData* aSample);
  int DoDecode(MediaRawData* aSample);
  void ProcessDrain();

  const RefPtr<ImageContainer> mImageContainer;
  const RefPtr<TaskQueue> mTaskQueue;
  MediaDataDecoderCallback* mCallback;
  Atomic<bool> mIsFlushing;

  // VPx decoder state
  vpx_codec_ctx_t mVPX;

  const VideoInfo& mInfo;

  const int mCodec;
};

} // namespace mozilla

#endif