blob: 72b7ace8c0faebc46e24196a1940710e5d5bf92e [file] [log] [blame]
// Copyright 2017 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/shared/win32/media_transform.h"
#include "starboard/common/scoped_ptr.h"
#include "starboard/log.h"
#include "starboard/shared/win32/audio_transform.h"
#include "starboard/shared/win32/error_utils.h"
#include "starboard/shared/win32/media_common.h"
#include "starboard/shared/win32/media_foundation_utils.h"
namespace starboard {
namespace shared {
namespace win32 {
using Microsoft::WRL::ComPtr;
using ::starboard::shared::starboard::ThreadChecker;
namespace {
template <typename T>
void ReleaseIfNotNull(T** ptr) {
if (*ptr) {
(*ptr)->Release();
*ptr = NULL;
}
}
} // namespace
MediaTransform::MediaTransform(CLSID clsid)
: thread_checker_(ThreadChecker::kSetThreadIdOnFirstCheck),
state_(kCanAcceptInput),
stream_begun_(false),
discontinuity_(true) {
HRESULT hr = CreateDecoderTransform(clsid, &transform_);
CheckResult(hr);
}
MediaTransform::MediaTransform(
const Microsoft::WRL::ComPtr<IMFTransform>& transform)
: transform_(transform),
thread_checker_(ThreadChecker::kSetThreadIdOnFirstCheck),
state_(kCanAcceptInput),
stream_begun_(false),
discontinuity_(true) {
SB_DCHECK(transform_);
}
bool MediaTransform::TryWrite(const ComPtr<IMFSample>& input) {
SB_DCHECK(thread_checker_.CalledOnValidThread());
if (state_ != kCanAcceptInput) {
return false;
}
if (!stream_begun_) {
SendMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING);
SendMessage(MFT_MESSAGE_NOTIFY_START_OF_STREAM);
stream_begun_ = true;
}
HRESULT hr = transform_->ProcessInput(kStreamId, input.Get(), 0);
if (SUCCEEDED(hr)) {
return true;
}
if (hr == MF_E_NOTACCEPTING) {
// NOTE: Some transforms may never return MF_E_NOTACCEPTING, so TryRead
// should be allowed to try retrieving an output sample while |state_| is
// kCanAcceptInput.
state_ = kCanProvideOutput;
return false;
}
SB_NOTREACHED() << "Unexpected return value " << hr;
return false;
}
ComPtr<IMFSample> MediaTransform::TryRead(ComPtr<IMFMediaType>* new_type) {
SB_DCHECK(thread_checker_.CalledOnValidThread());
SB_DCHECK(new_type);
if (state_ == kDrained) {
return NULL;
}
ComPtr<IMFSample> sample;
HRESULT hr = ProcessOutput(&sample);
if (hr == MF_E_TRANSFORM_STREAM_CHANGE) {
hr = transform_->GetOutputAvailableType(kStreamId,
0, // TypeIndex
new_type->GetAddressOf());
CheckResult(hr);
SetOutputType(*new_type);
hr = ProcessOutput(&sample);
}
if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
if (state_ == kCanProvideOutput) {
state_ = kCanAcceptInput;
}
if (state_ == kDraining) {
state_ = kDrained;
}
return NULL;
}
if (FAILED(hr)) {
// Sometimes the decryptor refuse to emit output after shutting down.
SB_DCHECK(hr == MF_E_INVALIDREQUEST);
if (state_ == kDraining) {
state_ = kDrained;
}
return NULL;
}
SB_DCHECK(sample);
if (discontinuity_) {
sample->SetUINT32(MFSampleExtension_Discontinuity, TRUE);
discontinuity_ = false;
}
return sample;
}
void MediaTransform::Drain() {
SB_DCHECK(thread_checker_.CalledOnValidThread());
SB_DCHECK(state_ != kDraining && state_ != kDrained);
if (state_ == kDraining || state_ == kDrained) {
return;
}
if (!stream_begun_) {
state_ = kDrained;
return;
}
SendMessage(MFT_MESSAGE_NOTIFY_END_OF_STREAM);
SendMessage(MFT_MESSAGE_COMMAND_DRAIN);
state_ = kDraining;
}
bool MediaTransform::draining() const {
SB_DCHECK(thread_checker_.CalledOnValidThread());
return state_ == kDraining;
}
bool MediaTransform::drained() const {
SB_DCHECK(thread_checker_.CalledOnValidThread());
return state_ == kDrained;
}
void MediaTransform::ResetFromDrained() {
SB_DCHECK(thread_checker_.CalledOnValidThread());
SB_DCHECK(drained());
state_ = kCanAcceptInput;
stream_begun_ = false;
discontinuity_ = true;
}
ComPtr<IMFMediaType> MediaTransform::GetCurrentInputType() {
ComPtr<IMFMediaType> type;
HRESULT hr = transform_->GetInputCurrentType(kStreamId, type.GetAddressOf());
CheckResult(hr);
return type;
}
void MediaTransform::SetInputType(const ComPtr<IMFMediaType>& input_type) {
HRESULT hr = transform_->SetInputType(0, input_type.Get(), 0);
CheckResult(hr);
}
std::vector<ComPtr<IMFMediaType>> MediaTransform::GetAvailableInputTypes() {
return GetAllInputMediaTypes(kStreamId, transform_.Get());
}
ComPtr<IMFMediaType> MediaTransform::GetCurrentOutputType() {
ComPtr<IMFMediaType> type;
HRESULT hr = transform_->GetOutputCurrentType(kStreamId, type.GetAddressOf());
CheckResult(hr);
return type;
}
void MediaTransform::SetOutputType(const ComPtr<IMFMediaType>& output_type) {
HRESULT hr = transform_->SetOutputType(0, output_type.Get(), 0);
CheckResult(hr);
}
std::vector<ComPtr<IMFMediaType>> MediaTransform::GetAvailableOutputTypes() {
std::vector<ComPtr<IMFMediaType>> output_types;
for (DWORD i = 0;; ++i) {
ComPtr<IMFMediaType> curr_type;
HRESULT hr = transform_->GetOutputAvailableType(kStreamId, i,
curr_type.GetAddressOf());
if (FAILED(hr)) {
break;
}
output_types.push_back(curr_type);
}
return output_types;
}
void MediaTransform::SetOutputTypeBySubType(GUID subtype) {
for (int index = 0;; ++index) {
ComPtr<IMFMediaType> media_type;
HRESULT hr =
transform_->GetOutputAvailableType(kStreamId, index, &media_type);
if (SUCCEEDED(hr)) {
GUID media_sub_type = {};
media_type->GetGUID(MF_MT_SUBTYPE, &media_sub_type);
if (media_sub_type == subtype) {
SetOutputType(media_type);
return;
}
} else {
SB_DCHECK(hr == MF_E_NO_MORE_TYPES);
break;
}
}
SB_NOTREACHED();
}
ComPtr<IMFAttributes> MediaTransform::GetAttributes() {
ComPtr<IMFAttributes> attributes;
HRESULT hr = transform_->GetAttributes(attributes.GetAddressOf());
CheckResult(hr);
return attributes;
}
ComPtr<IMFAttributes> MediaTransform::GetOutputStreamAttributes() {
ComPtr<IMFAttributes> attributes;
HRESULT hr =
transform_->GetOutputStreamAttributes(0, attributes.GetAddressOf());
CheckResult(hr);
return attributes;
}
ComPtr<IMFSampleProtection> MediaTransform::GetSampleProtection() {
ComPtr<IMFSampleProtection> sample_protection;
HRESULT hr = transform_.As(&sample_protection);
CheckResult(hr);
return sample_protection;
}
void MediaTransform::GetStreamCount(DWORD* input_stream_count,
DWORD* output_stream_count) {
SB_DCHECK(input_stream_count);
SB_DCHECK(output_stream_count);
HRESULT hr =
transform_->GetStreamCount(input_stream_count, output_stream_count);
CheckResult(hr);
}
void MediaTransform::SendMessage(MFT_MESSAGE_TYPE msg, ULONG_PTR data /*= 0*/) {
HRESULT hr = transform_->ProcessMessage(msg, data);
CheckResult(hr);
}
void MediaTransform::Reset() {
if (stream_begun_) {
SendMessage(MFT_MESSAGE_COMMAND_FLUSH);
}
state_ = kCanAcceptInput;
discontinuity_ = true;
thread_checker_.Detach();
}
void MediaTransform::PrepareOutputDataBuffer(
MFT_OUTPUT_DATA_BUFFER* output_data_buffer) {
output_data_buffer->dwStreamID = kStreamId;
output_data_buffer->pSample = NULL;
output_data_buffer->dwStatus = 0;
output_data_buffer->pEvents = NULL;
MFT_OUTPUT_STREAM_INFO output_stream_info;
HRESULT hr = transform_->GetOutputStreamInfo(kStreamId, &output_stream_info);
CheckResult(hr);
static const DWORD kFlagAutoAllocateMemory =
MFT_OUTPUT_STREAM_PROVIDES_SAMPLES |
MFT_OUTPUT_STREAM_CAN_PROVIDE_SAMPLES;
if ((output_stream_info.dwFlags & kFlagAutoAllocateMemory) != 0) {
// Try to let the IMFTransform allocate the memory if possible.
return;
}
ComPtr<IMFSample> sample;
hr = MFCreateSample(&sample);
CheckResult(hr);
ComPtr<IMFMediaBuffer> buffer;
hr = MFCreateAlignedMemoryBuffer(output_stream_info.cbSize,
output_stream_info.cbAlignment, &buffer);
CheckResult(hr);
hr = sample->AddBuffer(buffer.Get());
CheckResult(hr);
output_data_buffer->pSample = sample.Detach();
}
HRESULT MediaTransform::ProcessOutput(ComPtr<IMFSample>* sample) {
SB_DCHECK(sample);
MFT_OUTPUT_DATA_BUFFER output_data_buffer;
PrepareOutputDataBuffer(&output_data_buffer);
const DWORD kFlags = 0;
const DWORD kNumberOfBuffers = 1;
DWORD status = 0;
HRESULT hr = transform_->ProcessOutput(kFlags, kNumberOfBuffers,
&output_data_buffer, &status);
SB_DCHECK(!output_data_buffer.pEvents);
*sample = output_data_buffer.pSample;
ReleaseIfNotNull(&output_data_buffer.pEvents);
ReleaseIfNotNull(&output_data_buffer.pSample);
if (output_data_buffer.dwStatus == MFT_OUTPUT_DATA_BUFFER_NO_SAMPLE) {
hr = MF_E_TRANSFORM_NEED_MORE_INPUT;
}
return hr;
}
} // namespace win32
} // namespace shared
} // namespace starboard