| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "media/base/win/mf_helpers.h" |
| |
| #include "base/metrics/histogram_functions.h" |
| |
| namespace media { |
| |
| namespace mf { |
| |
| void LogDXVAError(int line) { |
| LOG(ERROR) << "Error in dxva_video_decode_accelerator_win.cc on line " |
| << line; |
| base::UmaHistogramSparse("Media.DXVAVDA.ErrorLine", line); |
| } |
| |
| Microsoft::WRL::ComPtr<IMFSample> CreateEmptySampleWithBuffer( |
| uint32_t buffer_length, |
| int align) { |
| CHECK_GT(buffer_length, 0U); |
| |
| Microsoft::WRL::ComPtr<IMFSample> sample; |
| HRESULT hr = MFCreateSample(sample.GetAddressOf()); |
| RETURN_ON_HR_FAILURE(hr, "MFCreateSample failed", |
| Microsoft::WRL::ComPtr<IMFSample>()); |
| |
| Microsoft::WRL::ComPtr<IMFMediaBuffer> buffer; |
| if (align == 0) { |
| // Note that MFCreateMemoryBuffer is same as MFCreateAlignedMemoryBuffer |
| // with the align argument being 0. |
| hr = MFCreateMemoryBuffer(buffer_length, buffer.GetAddressOf()); |
| } else { |
| hr = MFCreateAlignedMemoryBuffer(buffer_length, align - 1, |
| buffer.GetAddressOf()); |
| } |
| RETURN_ON_HR_FAILURE(hr, "Failed to create memory buffer for sample", |
| Microsoft::WRL::ComPtr<IMFSample>()); |
| |
| hr = sample->AddBuffer(buffer.Get()); |
| RETURN_ON_HR_FAILURE(hr, "Failed to add buffer to sample", |
| Microsoft::WRL::ComPtr<IMFSample>()); |
| |
| buffer->SetCurrentLength(0); |
| return sample; |
| } |
| |
| MediaBufferScopedPointer::MediaBufferScopedPointer(IMFMediaBuffer* media_buffer) |
| : media_buffer_(media_buffer), |
| buffer_(nullptr), |
| max_length_(0), |
| current_length_(0) { |
| HRESULT hr = media_buffer_->Lock(&buffer_, &max_length_, ¤t_length_); |
| CHECK(SUCCEEDED(hr)); |
| } |
| |
| MediaBufferScopedPointer::~MediaBufferScopedPointer() { |
| HRESULT hr = media_buffer_->Unlock(); |
| CHECK(SUCCEEDED(hr)); |
| } |
| |
| } // namespace mf |
| |
| } // namespace media |