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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef MEDIA_BASE_WIN_MF_HELPERS_H_ | |
| 6 #define MEDIA_BASE_WIN_MF_HELPERS_H_ | |
| 7 | |
| 8 #include <mfapi.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include "base/win/scoped_comptr.h" | |
| 12 #include "media/base/win/mf_initializer_export.h" | |
| 13 | |
| 14 namespace media { | |
| 15 | |
| 16 namespace mf { | |
| 17 | |
| 18 #define RETURN_ON_FAILURE(result, log, ret) \ | |
| 19 do { \ | |
| 20 if (!(result)) { \ | |
| 21 DLOG(ERROR) << log; \ | |
| 22 mf::LogDXVAError(__LINE__); \ | |
| 23 return ret; \ | |
| 24 } \ | |
| 25 } while (0) | |
| 26 | |
| 27 #define RETURN_ON_HR_FAILURE(result, log, ret) \ | |
| 28 RETURN_ON_FAILURE(SUCCEEDED(result), \ | |
| 29 log << ", HRESULT: 0x" << std::hex << result, ret); | |
| 30 | |
| 31 #define RETURN_AND_NOTIFY_ON_FAILURE(result, log, error_code, ret) \ | |
| 32 do { \ | |
| 33 if (!(result)) { \ | |
| 34 DVLOG(1) << log; \ | |
| 35 mf::LogDXVAError(__LINE__); \ | |
| 36 StopOnError(error_code); \ | |
| 37 return ret; \ | |
| 38 } \ | |
| 39 } while (0) | |
| 40 | |
| 41 #define RETURN_AND_NOTIFY_ON_HR_FAILURE(result, log, error_code, ret) \ | |
| 42 RETURN_AND_NOTIFY_ON_FAILURE(SUCCEEDED(result), \ | |
| 43 log << ", HRESULT: 0x" << std::hex << result, \ | |
| 44 error_code, ret); | |
| 45 | |
| 46 MF_INITIALIZER_EXPORT void LogDXVAError(int line); | |
| 47 | |
| 48 // Creates a Media Foundation sample with one buffer of length |buffer_length| | |
| 49 // on a |align|-byte boundary. Alignment must be a perfect power of 2 or 0. | |
| 50 MF_INITIALIZER_EXPORT IMFSample* CreateEmptySampleWithBuffer( | |
| 51 uint32_t buffer_length, | |
| 52 int align); | |
| 53 | |
| 54 // Provides scoped access to the underlying buffer in an IMFMediaBuffer | |
| 55 // instance. | |
| 56 class MF_INITIALIZER_EXPORT MediaBufferScopedPointer { | |
| 57 public: | |
| 58 MediaBufferScopedPointer(IMFMediaBuffer* media_buffer); | |
| 59 ~MediaBufferScopedPointer(); | |
| 60 | |
| 61 uint8_t* get() { return buffer_; } | |
| 62 DWORD current_length() const { return current_length_; } | |
| 63 | |
| 64 private: | |
| 65 base::win::ScopedComPtr<IMFMediaBuffer> media_buffer_; | |
| 66 uint8_t* buffer_; | |
| 67 DWORD max_length_; | |
| 68 DWORD current_length_; | |
| 69 | |
| 70 DISALLOW_COPY_AND_ASSIGN(MediaBufferScopedPointer); | |
| 71 }; | |
| 72 | |
| 73 } // namespace mf | |
| 74 | |
| 75 } // namespace media | |
| 76 | |
| 77 #endif // MEDIA_BASE_WIN_MF_HELPERS_H_ | |
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