gecko-dev/dom/media/platforms/wmf/MFTDecoder.cpp

307 строки
8.6 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/. */
#include "MFTDecoder.h"
#include "nsThreadUtils.h"
#include "WMFUtils.h"
#include "mozilla/Logging.h"
extern mozilla::LogModule* GetPDMLog();
#define LOG(...) MOZ_LOG(GetPDMLog(), mozilla::LogLevel::Debug, (__VA_ARGS__))
namespace mozilla {
MFTDecoder::MFTDecoder()
: mMFTProvidesOutputSamples(false)
, mDiscontinuity(true)
{
memset(&mInputStreamInfo, 0, sizeof(MFT_INPUT_STREAM_INFO));
memset(&mOutputStreamInfo, 0, sizeof(MFT_OUTPUT_STREAM_INFO));
}
MFTDecoder::~MFTDecoder()
{
}
HRESULT
MFTDecoder::Create(const GUID& aMFTClsID)
{
// Create the IMFTransform to do the decoding.
HRESULT hr;
hr = CoCreateInstance(aMFTClsID,
nullptr,
CLSCTX_INPROC_SERVER,
IID_IMFTransform,
reinterpret_cast<void**>(static_cast<IMFTransform**>(getter_AddRefs(mDecoder))));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
return S_OK;
}
HRESULT
MFTDecoder::SetMediaTypes(IMFMediaType* aInputType,
IMFMediaType* aOutputType,
ConfigureOutputCallback aCallback,
void* aData)
{
mOutputType = aOutputType;
// Set the input type to the one the caller gave us...
HRESULT hr = mDecoder->SetInputType(0, aInputType, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = SetDecoderOutputType(aCallback, aData);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = mDecoder->GetInputStreamInfo(0, &mInputStreamInfo);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = SendMFTMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = SendMFTMessage(MFT_MESSAGE_NOTIFY_START_OF_STREAM, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
return S_OK;
}
already_AddRefed<IMFAttributes>
MFTDecoder::GetAttributes()
{
RefPtr<IMFAttributes> attr;
HRESULT hr = mDecoder->GetAttributes(getter_AddRefs(attr));
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
return attr.forget();
}
HRESULT
MFTDecoder::SetDecoderOutputType(ConfigureOutputCallback aCallback, void* aData)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
// Iterate the enumerate the output types, until we find one compatible
// with what we need.
HRESULT hr;
RefPtr<IMFMediaType> outputType;
UINT32 typeIndex = 0;
while (SUCCEEDED(mDecoder->GetOutputAvailableType(0, typeIndex++, getter_AddRefs(outputType)))) {
BOOL resultMatch;
hr = mOutputType->Compare(outputType, MF_ATTRIBUTES_MATCH_OUR_ITEMS, &resultMatch);
if (SUCCEEDED(hr) && resultMatch == TRUE) {
if (aCallback) {
hr = aCallback(outputType, aData);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
}
hr = mDecoder->SetOutputType(0, outputType, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = mDecoder->GetOutputStreamInfo(0, &mOutputStreamInfo);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
mMFTProvidesOutputSamples = IsFlagSet(mOutputStreamInfo.dwFlags, MFT_OUTPUT_STREAM_PROVIDES_SAMPLES);
return S_OK;
}
outputType = nullptr;
}
return E_FAIL;
}
HRESULT
MFTDecoder::SendMFTMessage(MFT_MESSAGE_TYPE aMsg, ULONG_PTR aData)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
HRESULT hr = mDecoder->ProcessMessage(aMsg, aData);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
return S_OK;
}
HRESULT
MFTDecoder::CreateInputSample(const uint8_t* aData,
uint32_t aDataSize,
int64_t aTimestamp,
RefPtr<IMFSample>* aOutSample)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
HRESULT hr;
RefPtr<IMFSample> sample;
hr = wmf::MFCreateSample(getter_AddRefs(sample));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
RefPtr<IMFMediaBuffer> buffer;
int32_t bufferSize = std::max<uint32_t>(uint32_t(mInputStreamInfo.cbSize), aDataSize);
UINT32 alignment = (mInputStreamInfo.cbAlignment > 1) ? mInputStreamInfo.cbAlignment - 1 : 0;
hr = wmf::MFCreateAlignedMemoryBuffer(bufferSize, alignment, getter_AddRefs(buffer));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
DWORD maxLength = 0;
DWORD currentLength = 0;
BYTE* dst = nullptr;
hr = buffer->Lock(&dst, &maxLength, &currentLength);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Copy data into sample's buffer.
memcpy(dst, aData, aDataSize);
hr = buffer->Unlock();
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = buffer->SetCurrentLength(aDataSize);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = sample->AddBuffer(buffer);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = sample->SetSampleTime(UsecsToHNs(aTimestamp));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
*aOutSample = sample.forget();
return S_OK;
}
HRESULT
MFTDecoder::CreateOutputSample(RefPtr<IMFSample>* aOutSample)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
HRESULT hr;
RefPtr<IMFSample> sample;
hr = wmf::MFCreateSample(getter_AddRefs(sample));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
RefPtr<IMFMediaBuffer> buffer;
int32_t bufferSize = mOutputStreamInfo.cbSize;
UINT32 alignment = (mOutputStreamInfo.cbAlignment > 1) ? mOutputStreamInfo.cbAlignment - 1 : 0;
hr = wmf::MFCreateAlignedMemoryBuffer(bufferSize, alignment, getter_AddRefs(buffer));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = sample->AddBuffer(buffer);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
*aOutSample = sample.forget();
return S_OK;
}
HRESULT
MFTDecoder::Output(RefPtr<IMFSample>* aOutput)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
HRESULT hr;
MFT_OUTPUT_DATA_BUFFER output = {0};
bool providedSample = false;
RefPtr<IMFSample> sample;
if (*aOutput) {
output.pSample = *aOutput;
providedSample = true;
} else if (!mMFTProvidesOutputSamples) {
hr = CreateOutputSample(&sample);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
output.pSample = sample;
}
DWORD status = 0;
hr = mDecoder->ProcessOutput(0, 1, &output, &status);
if (output.pEvents) {
// We must release this, as per the IMFTransform::ProcessOutput()
// MSDN documentation.
output.pEvents->Release();
output.pEvents = nullptr;
}
if (hr == MF_E_TRANSFORM_STREAM_CHANGE) {
// Type change, probably geometric aperture change.
// Reconfigure decoder output type, so that GetOutputMediaType()
// returns the new type, and return the error code to caller.
// This is an expected failure, so don't warn on encountering it.
hr = SetDecoderOutputType(nullptr, nullptr);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Return the error, so that the caller knows to retry.
return MF_E_TRANSFORM_STREAM_CHANGE;
}
if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
// Not enough input to produce output. This is an expected failure,
// so don't warn on encountering it.
return hr;
}
// Treat other errors as unexpected, and warn.
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
if (!output.pSample) {
return S_OK;
}
if (mDiscontinuity) {
output.pSample->SetUINT32(MFSampleExtension_Discontinuity, TRUE);
mDiscontinuity = false;
}
*aOutput = output.pSample; // AddRefs
if (mMFTProvidesOutputSamples && !providedSample) {
// If the MFT is providing samples, we must release the sample here.
// Typically only the H.264 MFT provides samples when using DXVA,
// and it always re-uses the same sample, so if we don't release it
// MFT::ProcessOutput() deadlocks waiting for the sample to be released.
output.pSample->Release();
output.pSample = nullptr;
}
return S_OK;
}
HRESULT
MFTDecoder::Input(const uint8_t* aData,
uint32_t aDataSize,
int64_t aTimestamp)
{
NS_ENSURE_TRUE(mDecoder != nullptr, E_POINTER);
RefPtr<IMFSample> input;
HRESULT hr = CreateInputSample(aData, aDataSize, aTimestamp, &input);
NS_ENSURE_TRUE(SUCCEEDED(hr) && input != nullptr, hr);
return Input(input);
}
HRESULT
MFTDecoder::Input(IMFSample* aSample)
{
HRESULT hr = mDecoder->ProcessInput(0, aSample, 0);
if (hr == MF_E_NOTACCEPTING) {
// MFT *already* has enough data to produce a sample. Retrieve it.
return MF_E_NOTACCEPTING;
}
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
return S_OK;
}
HRESULT
MFTDecoder::Flush()
{
HRESULT hr = SendMFTMessage(MFT_MESSAGE_COMMAND_FLUSH, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
mDiscontinuity = true;
return S_OK;
}
HRESULT
MFTDecoder::GetOutputMediaType(RefPtr<IMFMediaType>& aMediaType)
{
NS_ENSURE_TRUE(mDecoder, E_POINTER);
return mDecoder->GetOutputCurrentType(0, getter_AddRefs(aMediaType));
}
} // namespace mozilla