mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-10-02 00:57:20 +00:00
146 lines
4.6 KiB
C++
146 lines
4.6 KiB
C++
/* -*- 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/. */
|
|
|
|
#ifndef mozilla_AppleVDADecoder_h
|
|
#define mozilla_AppleVDADecoder_h
|
|
|
|
#include "PlatformDecoderModule.h"
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/ReentrantMonitor.h"
|
|
#include "MP4Decoder.h"
|
|
#include "nsIThread.h"
|
|
#include "ReorderQueue.h"
|
|
#include "TimeUnits.h"
|
|
|
|
#include "VideoDecodeAcceleration/VDADecoder.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class FlushableTaskQueue;
|
|
class MediaDataDecoderCallback;
|
|
namespace layers {
|
|
class ImageContainer;
|
|
} // namespace layers
|
|
|
|
class AppleVDADecoder : public MediaDataDecoder {
|
|
public:
|
|
class AppleFrameRef {
|
|
public:
|
|
media::TimeUnit decode_timestamp;
|
|
media::TimeUnit composition_timestamp;
|
|
media::TimeUnit duration;
|
|
int64_t byte_offset;
|
|
bool is_sync_point;
|
|
|
|
explicit AppleFrameRef(const MediaRawData& aSample)
|
|
: decode_timestamp(media::TimeUnit::FromMicroseconds(aSample.mTimecode))
|
|
, composition_timestamp(media::TimeUnit::FromMicroseconds(aSample.mTime))
|
|
, duration(media::TimeUnit::FromMicroseconds(aSample.mDuration))
|
|
, byte_offset(aSample.mOffset)
|
|
, is_sync_point(aSample.mKeyframe)
|
|
{
|
|
}
|
|
|
|
AppleFrameRef(const media::TimeUnit& aDts,
|
|
const media::TimeUnit& aPts,
|
|
const media::TimeUnit& aDuration,
|
|
int64_t aByte_offset,
|
|
bool aIs_sync_point)
|
|
: decode_timestamp(aDts)
|
|
, composition_timestamp(aPts)
|
|
, duration(aDuration)
|
|
, byte_offset(aByte_offset)
|
|
, is_sync_point(aIs_sync_point)
|
|
{
|
|
}
|
|
};
|
|
|
|
// Return a new created AppleVDADecoder or nullptr if media or hardware is
|
|
// not supported by current configuration.
|
|
static already_AddRefed<AppleVDADecoder> CreateVDADecoder(
|
|
const VideoInfo& aConfig,
|
|
FlushableTaskQueue* aVideoTaskQueue,
|
|
MediaDataDecoderCallback* aCallback,
|
|
layers::ImageContainer* aImageContainer);
|
|
|
|
AppleVDADecoder(const VideoInfo& aConfig,
|
|
FlushableTaskQueue* aVideoTaskQueue,
|
|
MediaDataDecoderCallback* aCallback,
|
|
layers::ImageContainer* aImageContainer);
|
|
virtual ~AppleVDADecoder();
|
|
RefPtr<InitPromise> Init() override;
|
|
nsresult Input(MediaRawData* aSample) override;
|
|
nsresult Flush() override;
|
|
nsresult Drain() override;
|
|
nsresult Shutdown() override;
|
|
bool IsHardwareAccelerated(nsACString& aFailureReason) const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Access from the taskqueue and the decoder's thread.
|
|
// OutputFrame is thread-safe.
|
|
nsresult OutputFrame(CVPixelBufferRef aImage,
|
|
AppleFrameRef aFrameRef);
|
|
|
|
protected:
|
|
// Flush and Drain operation, always run
|
|
virtual void ProcessFlush();
|
|
virtual void ProcessDrain();
|
|
virtual void ProcessShutdown();
|
|
|
|
AppleFrameRef* CreateAppleFrameRef(const MediaRawData* aSample);
|
|
void DrainReorderedFrames();
|
|
void ClearReorderedFrames();
|
|
CFDictionaryRef CreateOutputConfiguration();
|
|
|
|
RefPtr<MediaByteBuffer> mExtraData;
|
|
RefPtr<FlushableTaskQueue> mTaskQueue;
|
|
MediaDataDecoderCallback* mCallback;
|
|
RefPtr<layers::ImageContainer> mImageContainer;
|
|
uint32_t mPictureWidth;
|
|
uint32_t mPictureHeight;
|
|
uint32_t mDisplayWidth;
|
|
uint32_t mDisplayHeight;
|
|
// Accessed on multiple threads, but only set in constructor.
|
|
uint32_t mMaxRefFrames;
|
|
// Increased when Input is called, and decreased when ProcessFrame runs.
|
|
// Reaching 0 indicates that there's no pending Input.
|
|
Atomic<uint32_t> mInputIncoming;
|
|
Atomic<bool> mIsShutDown;
|
|
|
|
const bool mUseSoftwareImages;
|
|
const bool mIs106;
|
|
|
|
// Number of times a sample was queued via Input(). Will be decreased upon
|
|
// the decoder's callback being invoked.
|
|
// This is used to calculate how many frames has been buffered by the decoder.
|
|
Atomic<uint32_t> mQueuedSamples;
|
|
|
|
// For wait on mIsFlushing during Shutdown() process.
|
|
// Protects mReorderQueue.
|
|
Monitor mMonitor;
|
|
// Set on reader/decode thread calling Flush() to indicate that output is
|
|
// not required and so input samples on mTaskQueue need not be processed.
|
|
// Cleared on mTaskQueue in ProcessDrain().
|
|
Atomic<bool> mIsFlushing;
|
|
ReorderQueue mReorderQueue;
|
|
|
|
private:
|
|
VDADecoder mDecoder;
|
|
|
|
// Method to set up the decompression session.
|
|
nsresult InitializeSession();
|
|
|
|
// Method to pass a frame to VideoToolbox for decoding.
|
|
nsresult SubmitFrame(MediaRawData* aSample);
|
|
CFDictionaryRef CreateDecoderSpecification();
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_AppleVDADecoder_h
|