зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.6 KiB
C++
112 строки
3.6 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/. */
|
|
|
|
#if !defined(MFTDecoder_h_)
|
|
#define MFTDecoder_h_
|
|
|
|
#include "WMF.h"
|
|
#include "mozilla/RefPtr.h"
|
|
#include "mozilla/ReentrantMonitor.h"
|
|
#include "nsIThread.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class MFTDecoder final {
|
|
~MFTDecoder();
|
|
|
|
public:
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MFTDecoder)
|
|
|
|
MFTDecoder();
|
|
|
|
// Creates the MFT. First thing to do as part of setup.
|
|
//
|
|
// Params:
|
|
// - aMFTClsID the clsid used by CoCreateInstance to instantiate the
|
|
// decoder MFT.
|
|
HRESULT Create(const GUID& aMFTClsID);
|
|
|
|
// Sets the input and output media types. Call after Init().
|
|
//
|
|
// Params:
|
|
// - aInputType needs at least major and minor types set.
|
|
// - aOutputType needs at least major and minor types set.
|
|
// This is used to select the matching output type out
|
|
// of all the available output types of the MFT.
|
|
typedef HRESULT (*ConfigureOutputCallback)(IMFMediaType* aOutputType, void* aData);
|
|
HRESULT SetMediaTypes(IMFMediaType* aInputType,
|
|
IMFMediaType* aOutputType,
|
|
ConfigureOutputCallback aCallback = nullptr,
|
|
void* aData = nullptr);
|
|
|
|
// Returns the MFT's IMFAttributes object.
|
|
already_AddRefed<IMFAttributes> GetAttributes();
|
|
|
|
// Retrieves the media type being output. This may not be valid until
|
|
// the first sample is decoded.
|
|
HRESULT GetOutputMediaType(RefPtr<IMFMediaType>& aMediaType);
|
|
|
|
// Submits data into the MFT for processing.
|
|
//
|
|
// Returns:
|
|
// - MF_E_NOTACCEPTING if the decoder can't accept input. The data
|
|
// must be resubmitted after Output() stops producing output.
|
|
HRESULT Input(const uint8_t* aData,
|
|
uint32_t aDataSize,
|
|
int64_t aTimestampUsecs);
|
|
HRESULT Input(IMFSample* aSample);
|
|
|
|
HRESULT CreateInputSample(const uint8_t* aData,
|
|
uint32_t aDataSize,
|
|
int64_t aTimestampUsecs,
|
|
RefPtr<IMFSample>* aOutSample);
|
|
|
|
// Retrieves output from the MFT. Call this once Input() returns
|
|
// MF_E_NOTACCEPTING. Some MFTs with hardware acceleration (the H.264
|
|
// decoder MFT in particular) can't handle it if clients hold onto
|
|
// references to the output IMFSample, so don't do that.
|
|
//
|
|
// Returns:
|
|
// - MF_E_TRANSFORM_STREAM_CHANGE if the underlying stream output
|
|
// type changed. Retrieve the output media type and reconfig client,
|
|
// else you may misinterpret the MFT's output.
|
|
// - MF_E_TRANSFORM_NEED_MORE_INPUT if no output can be produced
|
|
// due to lack of input.
|
|
// - S_OK if an output frame is produced.
|
|
HRESULT Output(RefPtr<IMFSample>* aOutput);
|
|
|
|
// Sends a flush message to the MFT. This causes it to discard all
|
|
// input data. Use before seeking.
|
|
HRESULT Flush();
|
|
|
|
// Sends a message to the MFT.
|
|
HRESULT SendMFTMessage(MFT_MESSAGE_TYPE aMsg, ULONG_PTR aData);
|
|
|
|
|
|
HRESULT SetDecoderOutputType(ConfigureOutputCallback aCallback, void* aData);
|
|
private:
|
|
|
|
|
|
HRESULT CreateOutputSample(RefPtr<IMFSample>* aOutSample);
|
|
|
|
MFT_INPUT_STREAM_INFO mInputStreamInfo;
|
|
MFT_OUTPUT_STREAM_INFO mOutputStreamInfo;
|
|
|
|
RefPtr<IMFTransform> mDecoder;
|
|
|
|
RefPtr<IMFMediaType> mOutputType;
|
|
|
|
// True if the IMFTransform allocates the samples that it returns.
|
|
bool mMFTProvidesOutputSamples;
|
|
|
|
// True if we need to mark the next sample as a discontinuity.
|
|
bool mDiscontinuity;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif
|