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The Tor Browser
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WMFUtils.h (5275B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef WMFUtils_h
      8 #define WMFUtils_h
      9 
     10 #include <hstring.h>
     11 #include <winstring.h>
     12 
     13 #include "ImageTypes.h"
     14 #include "PlatformDecoderModule.h"
     15 #include "TimeUnits.h"
     16 #include "VideoUtils.h"
     17 #include "WMF.h"
     18 #include "mozilla/DefineEnum.h"
     19 #include "mozilla/gfx/Rect.h"
     20 #include "nsString.h"
     21 
     22 // Various utilities shared by WMF backend files.
     23 
     24 namespace mozilla {
     25 
     26 namespace gfx {
     27 enum class ColorDepth : uint8_t;
     28 }
     29 extern LazyLogModule sPDMLog;
     30 
     31 #define LOG_AND_WARNING_PDM(msg, ...)                            \
     32  do {                                                           \
     33    NS_WARNING(nsPrintfCString(msg, rv).get());                  \
     34    MOZ_LOG(sPDMLog, LogLevel::Debug,                            \
     35            ("%s:%d, " msg, __FILE__, __LINE__, ##__VA_ARGS__)); \
     36  } while (false)
     37 
     38 #ifndef RETURN_IF_FAILED
     39 #  define RETURN_IF_FAILED(x)                               \
     40    do {                                                    \
     41      HRESULT rv = x;                                       \
     42      if (MOZ_UNLIKELY(FAILED(rv))) {                       \
     43        LOG_AND_WARNING_PDM("(" #x ") failed, rv=%lx", rv); \
     44        return rv;                                          \
     45      }                                                     \
     46    } while (false)
     47 #endif
     48 
     49 #ifndef RETURN_PARAM_IF_FAILED
     50 #  define RETURN_PARAM_IF_FAILED(x, defaultOut)             \
     51    do {                                                    \
     52      HRESULT rv = x;                                       \
     53      if (MOZ_UNLIKELY(FAILED(rv))) {                       \
     54        LOG_AND_WARNING_PDM("(" #x ") failed, rv=%lx", rv); \
     55        return defaultOut;                                  \
     56      }                                                     \
     57    } while (false)
     58 #endif
     59 
     60 static const GUID CLSID_MSOpusDecoder = {
     61    0x63e17c10,
     62    0x2d43,
     63    0x4c42,
     64    {0x8f, 0xe3, 0x8d, 0x8b, 0x63, 0xe4, 0x6a, 0x6a}};
     65 
     66 // Media types supported by Media Foundation.
     67 MOZ_DEFINE_ENUM_CLASS_WITH_TOSTRING(WMFStreamType,
     68                                    (Unknown, H264, VP8, VP9, AV1, HEVC, MP3,
     69                                     AAC, OPUS, VORBIS, SENTINEL));
     70 
     71 bool StreamTypeIsVideo(const WMFStreamType& aType);
     72 
     73 bool StreamTypeIsAudio(const WMFStreamType& aType);
     74 
     75 WMFStreamType GetStreamTypeFromMimeType(const nsCString& aMimeType);
     76 
     77 GUID GetOutputSubType(const gfx::ColorDepth& aColorDepth,
     78                      bool aIsHardwareDecoding);
     79 
     80 nsCString GetSubTypeStr(const GUID& aSubtype);
     81 
     82 // Converts from microseconds to hundreds of nanoseconds.
     83 // We use microseconds for our timestamps, whereas WMF uses
     84 // hundreds of nanoseconds.
     85 inline int64_t UsecsToHNs(int64_t aUsecs) { return aUsecs * 10; }
     86 
     87 // Converts from hundreds of nanoseconds to microseconds.
     88 // We use microseconds for our timestamps, whereas WMF uses
     89 // hundreds of nanoseconds.
     90 inline int64_t HNsToUsecs(int64_t hNanoSecs) { return hNanoSecs / 10; }
     91 
     92 HRESULT HNsToFrames(int64_t aHNs, uint32_t aRate, int64_t* aOutFrames);
     93 
     94 HRESULT
     95 GetDefaultStride(IMFMediaType* aType, uint32_t aWidth, uint32_t* aOutStride);
     96 
     97 Maybe<gfx::YUVColorSpace> GetYUVColorSpace(IMFMediaType* aType);
     98 
     99 int32_t MFOffsetToInt32(const MFOffset& aOffset);
    100 
    101 // Gets the sub-region of the video frame that should be displayed.
    102 // See:
    103 // http://msdn.microsoft.com/en-us/library/windows/desktop/bb530115(v=vs.85).aspx
    104 HRESULT
    105 GetPictureRegion(IMFMediaType* aMediaType, gfx::IntRect& aOutPictureRegion);
    106 
    107 // Returns the duration of a IMFSample in TimeUnit.
    108 // Returns media::TimeUnit::Invalid() on failure.
    109 media::TimeUnit GetSampleDuration(IMFSample* aSample);
    110 
    111 // Returns the presentation time of a IMFSample in TimeUnit.
    112 // Returns media::TimeUnit::Invalid() on failure.
    113 media::TimeUnit GetSampleTime(IMFSample* aSample);
    114 
    115 inline bool IsFlagSet(DWORD flags, DWORD pattern) {
    116  return (flags & pattern) == pattern;
    117 }
    118 
    119 // Will return %ProgramW6432% value as per:
    120 // https://msdn.microsoft.com/library/windows/desktop/aa384274.aspx
    121 nsString GetProgramW6432Path();
    122 
    123 const char* MFTMessageTypeToStr(MFT_MESSAGE_TYPE aMsg);
    124 
    125 GUID AudioMimeTypeToMediaFoundationSubtype(const nsACString& aMimeType);
    126 
    127 GUID VideoMimeTypeToMediaFoundationSubtype(const nsACString& aMimeType);
    128 
    129 void AACAudioSpecificConfigToUserData(uint8_t aAACProfileLevelIndication,
    130                                      const uint8_t* aAudioSpecConfig,
    131                                      uint32_t aConfigLength,
    132                                      nsTArray<BYTE>& aOutUserData);
    133 
    134 class ScopedHString final {
    135 public:
    136  explicit ScopedHString(const nsAString& aStr) {
    137    WindowsCreateString(PromiseFlatString(aStr).get(), aStr.Length(), &mString);
    138  }
    139  explicit ScopedHString(const WCHAR aCharArray[]) {
    140    WindowsCreateString(aCharArray, wcslen(aCharArray), &mString);
    141  }
    142  ~ScopedHString() { WindowsDeleteString(mString); }
    143  const HSTRING& Get() { return mString; }
    144 
    145 private:
    146  HSTRING mString;
    147 };
    148 
    149 }  // namespace mozilla
    150 
    151 #endif