官方英文文檔鏈接：https://docs.microsoft.com/en-us/windows/desktop/medfound/stream-subtype-guids

基于05/31/2018

Media Type 剩下的幾篇都在此頁

Stream Subtype GUIDs

Complete and Partial Media Type

Media Type Conversions

Media Type Helper Funtions

Media Type Debugging Code

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Stream Subtype GUIDs

• 05/31/2018
• 2 minutes to read

下面的 subtype GUIDs 定義在?mfapi.h 頭文件中。要設定這些?subtype，使用?MF_MT_SUBTYPE?attribute。

當設置了這些 subtype 時，需要將?MF_MT_MAJOR_TYPE?attribute 設為?MFMediaType_Stream。

GUIDDescription

MFStreamFormat_MPEG2Program	MPEG-2 program stream
MFStreamFormat_MPEG2Transport	MPEG-2 transport stream.

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Complete and Partial Media Types

• 05/31/2018
• 2 minutes to read

此文介紹 complete media types 與 partial media types 的區別。

Complete Media Types

complete?media 是完全定義媒體流格式的類型。給定完整的媒體類型，管道組件可以分析與媒體類型關聯的流數據，而不會出現歧義。

對于未壓縮的格式，以下主題定義了 complete media type 所需要的 attribute：

• Audio:?Uncompressed Audio Media Types
• Video:?Uncompressed Video Media Types

對于壓縮過的 (或編碼過) 的流，complete media type 的定義由編解碼器定義。

Partial Media Types

partial?media 缺少完整媒體類型所需的一個或多個屬性。枚舉可能的媒體類型時，Microsoft Media Foundation 組件可能會保留未設置的值，以指示它可以處理任何值。例如, 視頻處理器可能會保留?MF_MT_FRAME_RATE?attribute，以表示它可以處理任何幀速率，并在必要時執行幀速率轉換。

如果創建 partial media type，則仍應包含所知道的盡可能多的信息。但是，不要包含不確定的信息。信息缺失總比錯誤好。

partial media type 至少應該包含這兩個信息：?MF_MT_MAJOR_TYPEand?MF_MT_SUBTYPE。

有時候是必須使用?complete media types：

• Media sources 必須提供 complete output types.
• 解碼器在設置?input type 之后必須提供 complete output types。在設置?input type 之前，解碼器也許可以提供 partial output type。
• 編碼器在設置 output type 之后必須提供 complete input types，在設置 output type 之前，編碼器也許可以提供 partial input type。

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Media Type Conversions

• 05/31/2018
• 3 minutes to read

有時需要在 Media Foundation media types 和更老的 DirectShow 或?Windows Media Format SDK?里的 media type 結構之間進行轉換。

From a Format Structure to a Media Foundation Type

下面的函數使用一個 format structure 來初始化?Media Foundation media type。當數據流或者文件頭包含有?format structure 時也可以使用這些函數。例如 WAVE 音頻文件開頭就包含一個?WAVEFORMATEX?結構體。

Structure to ConvertFunction

AM_MEDIA_TYPE?(DirectShow) DMO_MEDIA_TYPE?(DirectX Media Objects)? WM_MEDIA_TYPE?(Windows Media Format SDK)? [!Note] These structures are equivalent.	MFInitMediaTypeFromAMMediaType
BITMAPINFOHEADER	MFCreateVideoMediaTypeFromBitMapInfoHeaderEx
MFVIDEOFORMAT	MFInitMediaTypeFromMFVideoFormat
MPEG1VIDEOINFO	MFInitMediaTypeFromMPEG1VideoInfo
MPEG2VIDEOINFO	MFInitMediaTypeFromMPEG2VideoInfo
VIDEOINFOHEADER2	MFInitMediaTypeFromVideoInfoHeader2
VIDEOINFOHEADER	MFInitMediaTypeFromVideoInfoHeader
WAVEFORMATEX?or?WAVEFORMATEXTENSIBLE	MFInitMediaTypeFromWaveFormatEx

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From a Media Foundation Type to a Format Structure

下面的函數使用 Media Foundation media type 來創建或者初始化一個?format structure。

FunctionTarget Structure

IMFMediaType::GetRepresentation	AM_MEDIA_TYPE,?MFVIDEOFORMAT,?VIDEOINFOHEADER, or?VIDEOINFOHEADER2
MFCreateAMMediaTypeFromMFMediaType	AM_MEDIA_TYPE
MFCreateMFVideoFormatFromMFMediaType	MFVIDEOFORMAT
MFCreateWaveFormatExFromMFMediaType	WAVEFORMATEX?or?WAVEFORMATEXTENSIBLE
MFInitAMMediaTypeFromMFMediaType	AM_MEDIA_TYPE

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Format Mappings

下表列出了 Media Foundation attributes 與對應的 format structure 屬性。并非所有的這些屬性都可以直接轉換。若要執行轉換，參考上一節列出的函數。這個表格僅供參考。

AM_MEDIA_TYPE

MemberAttribute

bTemporalCompression	MF_MT_ALL_SAMPLES_INDEPENDENT
bFixedSizeSamples	MF_MT_FIXED_SIZE_SAMPLES
lSampleSize	MF_MT_SAMPLE_SIZE

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WAVEFORMATEX, WAVEFORMATEXTENSIBLE

MemberAttribute

wFormatTag	MF_MT_SUBTYPE If?wFormatTag?is WAVE_FORMAT_EXTENSIBLE, the subtype is found in the?SubFormat?member.
nChannels	MF_MT_AUDIO_NUM_CHANNELS
nSamplesPerSec	MF_MT_AUDIO_SAMPLES_PER_SECOND
nAvgBytesPerSec	MF_MT_AUDIO_AVG_BYTES_PER_SECOND
nBlockAlign	MF_MT_AUDIO_BLOCK_ALIGNMENT
wBitsPerSample	MF_MT_AUDIO_BITS_PER_SAMPLE
wValidBitsPerSample	MF_MT_AUDIO_VALID_BITS_PER_SAMPLE
wSamplesPerBlock	MF_MT_AUDIO_SAMPLES_PER_BLOCK
dwChannelMask	MF_MT_AUDIO_CHANNEL_MASK
SubFormat	MF_MT_SUBTYPE
Extra data	MF_MT_USER_DATA

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VIDEOINFOHEADER, VIDEOINFOHEADER2

MemberAttribute

dwBitRate	MF_MT_AVG_BITRATE
dwBitErrorRate	MF_MT_AVG_BIT_ERROR_RATE
AvgTimePerFrame	MF_MT_FRAME_RATE; use?MFAverageTimePerFrameToFrameRateto calculate this value.
dwInterlaceFlags	MF_MT_INTERLACE_MODE
dwCopyProtectFlags	No defined equivalent
dwPictAspectRatioX,?dwPictAspectRatioY	MF_MT_PIXEL_ASPECT_RATIO; must convert from picture aspect ratio to picture aspect ratio.
dwControlFlags	MF_MT_PAD_CONTROL_FLAGS. If the?AMCONTROL_COLORINFO_PRESENT?flag is present, set the extended color attributes described in?Extended Color Information.
bmiHeader.biWidth,?bmiHeader.biHeight	MF_MT_FRAME_SIZE
bmiHeader.biBitCount	Implicit in the subtype (MF_MT_SUBTYPE).
bmiHeader.biCompression	Implicit in the subtype.
bmiHeader.biSizeImage	MF_MT_SAMPLE_SIZE
Palette information	MF_MT_PALETTE

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下面的屬性可以從?VIDEOINFOHEADER?或?VIDEOINFOHEADER2?結構推斷出來，但是這要求對格式細節有一定的了解。例如不同的 YUV 格式有不同的 stride。

• MF_MT_DEFAULT_STRIDE
• MF_MT_MINIMUM_DISPLAY_APERTURE
• MF_MT_PAN_SCAN_APERTURE

MPEG1VIDEOINFO

MemberAttribute

dwStartTimeCode	MF_MT_MPEG_START_TIME_CODE
bSequenceHeader	MF_MT_MPEG_SEQUENCE_HEADER
biXPelsPerMeter,?biYPelsPerMeter	MF_MT_PIXEL_ASPECT_RATIO

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MPEG2VIDEOINFO

MemberAttribute

dwStartTimeCode	MF_MT_MPEG_START_TIME_CODE
dwSequenceHeader	MF_MT_MPEG_SEQUENCE_HEADER
dwProfile	MF_MT_MPEG2_PROFILE
dwLevel	MF_MT_MPEG2_LEVEL
dwFlags	MF_MT_MPEG2_FLAGS

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Examples

下面的代碼使用一個 video media type，補充了一個?BITMAPINFOHEADER。注意這個轉換丟掉了一些信息（隔行掃描，幀率，擴展顏色數據），然而在從視頻幀保存成位圖時，可能需要這些信息。

1 #include <dshow.h> 2 #include <dvdmedia.h> 3 4 // Converts a video type to a BITMAPINFO structure. 5 // The caller must free the structure by calling CoTaskMemFree. 6 7 // Note that this conversion loses some format information, including 8 // interlacing, and frame rate. 9 10 HRESULT GetBitmapInfoHeaderFromMFMediaType( 11 IMFMediaType *pType, // Pointer to the media type. 12 BITMAPINFOHEADER **ppBmih, // Receives a pointer to the structure. 13 DWORD *pcbSize) // Receives the size of the structure. 14 { 15 *ppBmih = NULL; 16 *pcbSize = 0; 17 18 GUID majorType = GUID_NULL; 19 AM_MEDIA_TYPE *pmt = NULL; 20 DWORD cbSize = 0; 21 DWORD cbOffset = 0; 22 BITMAPINFOHEADER *pBMIH = NULL; 23 24 // Verify that this is a video type. 25 HRESULT hr = pType->GetMajorType(&majorType); 26 if (FAILED(hr)) 27 { 28 goto done; 29 } 30 31 if (majorType != MFMediaType_Video) 32 { 33 hr = MF_E_INVALIDMEDIATYPE; 34 goto done; 35 } 36 37 hr = pType->GetRepresentation(AM_MEDIA_TYPE_REPRESENTATION, (void**)&pmt); 38 if (FAILED(hr)) 39 { 40 goto done; 41 } 42 43 if (pmt->formattype == FORMAT_VideoInfo) 44 { 45 cbOffset = (FIELD_OFFSET(VIDEOINFOHEADER,bmiHeader)); 46 } 47 else if (pmt->formattype == FORMAT_VideoInfo2) 48 { 49 cbOffset = (FIELD_OFFSET(VIDEOINFOHEADER2,bmiHeader)); 50 } 51 else 52 { 53 hr = MF_E_INVALIDMEDIATYPE; // Unsupported format type. 54 goto done; 55 } 56 57 if (pmt->cbFormat - cbOffset < sizeof(BITMAPINFOHEADER)) 58 { 59 hr = E_UNEXPECTED; // Bad format size. 60 goto done; 61 } 62 63 cbSize = pmt->cbFormat - cbOffset; 64 65 pBMIH = (BITMAPINFOHEADER*)CoTaskMemAlloc(cbSize); 66 if (pBMIH == NULL) 67 { 68 hr = E_OUTOFMEMORY; 69 goto done; 70 } 71 72 CopyMemory(pBMIH, pmt->pbFormat + cbOffset, cbSize); 73 74 *ppBmih = pBMIH; 75 *pcbSize = cbSize; 76 77 done: 78 if (pmt) 79 { 80 pType->FreeRepresentation(AM_MEDIA_TYPE_REPRESENTATION, pmt); 81 } 82 return hr; 83 }

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Media Type Helper Functions

• 05/31/2018
• 2 minutes to read

下面是一些與 media type 相關的函數。

FunctionDescription

MFAverageTimePerFrameToFrameRate	Calculates the frame rate from the average duration of a video frame.
MFCalculateImageSize	Retrieves the image size for an uncompressed video format.
MFCompareFullToPartialMediaType	Compares a full media type to a partial media type.
MFCreateMediaType	Creates an empty media type.
MFFrameRateToAverageTimePerFrame	Converts a video frame rate into a frame duration.
MFGetStrideForBitmapInfoHeader	Retrieves the minimum surface stride for a video format.
MFIsFormatYUV	Queries whether a FOURCC code or?D3DFORMAT?value is a YUV format.
MFValidateMediaTypeSize	Validates the size of a buffer for a video format block.
MFWrapMediaType	Creates a media type that wraps another media type.

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Media Type Debugging Code

• 05/31/2018
• 4 minutes to read

下面的代碼可以在調試時輸出 media type 的內容。

1 // The following code enables you to view the contents of a media type while 2 // debugging. 3 4 #include <strsafe.h> 5 6 LPCWSTR GetGUIDNameConst(const GUID& guid); 7 HRESULT GetGUIDName(const GUID& guid, WCHAR **ppwsz); 8 9 HRESULT LogAttributeValueByIndex(IMFAttributes *pAttr, DWORD index); 10 HRESULT SpecialCaseAttributeValue(GUID guid, const PROPVARIANT& var); 11 12 void DBGMSG(PCWSTR format, ...); 13 14 HRESULT LogMediaType(IMFMediaType *pType) 15 { 16 UINT32 count = 0; 17 18 HRESULT hr = pType->GetCount(&count); 19 if (FAILED(hr)) 20 { 21 return hr; 22 } 23 24 if (count == 0) 25 { 26 DBGMSG(L"Empty media type.\n"); 27 } 28 29 for (UINT32 i = 0; i < count; i++) 30 { 31 hr = LogAttributeValueByIndex(pType, i); 32 if (FAILED(hr)) 33 { 34 break; 35 } 36 } 37 return hr; 38 } 39 40 HRESULT LogAttributeValueByIndex(IMFAttributes *pAttr, DWORD index) 41 { 42 WCHAR *pGuidName = NULL; 43 WCHAR *pGuidValName = NULL; 44 45 GUID guid = { 0 }; 46 47 PROPVARIANT var; 48 PropVariantInit(&var); 49 50 HRESULT hr = pAttr->GetItemByIndex(index, &guid, &var); 51 if (FAILED(hr)) 52 { 53 goto done; 54 } 55 56 hr = GetGUIDName(guid, &pGuidName); 57 if (FAILED(hr)) 58 { 59 goto done; 60 } 61 62 DBGMSG(L"\t%s\t", pGuidName); 63 64 hr = SpecialCaseAttributeValue(guid, var); 65 if (FAILED(hr)) 66 { 67 goto done; 68 } 69 if (hr == S_FALSE) 70 { 71 switch (var.vt) 72 { 73 case VT_UI4: 74 DBGMSG(L"%d", var.ulVal); 75 break; 76 77 case VT_UI8: 78 DBGMSG(L"%I64d", var.uhVal); 79 break; 80 81 case VT_R8: 82 DBGMSG(L"%f", var.dblVal); 83 break; 84 85 case VT_CLSID: 86 hr = GetGUIDName(*var.puuid, &pGuidValName); 87 if (SUCCEEDED(hr)) 88 { 89 DBGMSG(pGuidValName); 90 } 91 break; 92 93 case VT_LPWSTR: 94 DBGMSG(var.pwszVal); 95 break; 96 97 case VT_VECTOR | VT_UI1: 98 DBGMSG(L"<<byte array>>"); 99 break; 100 101 case VT_UNKNOWN: 102 DBGMSG(L"IUnknown"); 103 break; 104 105 default: 106 DBGMSG(L"Unexpected attribute type (vt = %d)", var.vt); 107 break; 108 } 109 } 110 111 done: 112 DBGMSG(L"\n"); 113 CoTaskMemFree(pGuidName); 114 CoTaskMemFree(pGuidValName); 115 PropVariantClear(&var); 116 return hr; 117 } 118 119 HRESULT GetGUIDName(const GUID& guid, WCHAR **ppwsz) 120 { 121 HRESULT hr = S_OK; 122 WCHAR *pName = NULL; 123 124 LPCWSTR pcwsz = GetGUIDNameConst(guid); 125 if (pcwsz) 126 { 127 size_t cchLength = 0; 128 129 hr = StringCchLength(pcwsz, STRSAFE_MAX_CCH, &cchLength); 130 if (FAILED(hr)) 131 { 132 goto done; 133 } 134 135 pName = (WCHAR*)CoTaskMemAlloc((cchLength + 1) * sizeof(WCHAR)); 136 137 if (pName == NULL) 138 { 139 hr = E_OUTOFMEMORY; 140 goto done; 141 } 142 143 hr = StringCchCopy(pName, cchLength + 1, pcwsz); 144 if (FAILED(hr)) 145 { 146 goto done; 147 } 148 } 149 else 150 { 151 hr = StringFromCLSID(guid, &pName); 152 } 153 154 done: 155 if (FAILED(hr)) 156 { 157 *ppwsz = NULL; 158 CoTaskMemFree(pName); 159 } 160 else 161 { 162 *ppwsz = pName; 163 } 164 return hr; 165 } 166 167 void LogUINT32AsUINT64(const PROPVARIANT& var) 168 { 169 UINT32 uHigh = 0, uLow = 0; 170 Unpack2UINT32AsUINT64(var.uhVal.QuadPart, &uHigh, &uLow); 171 DBGMSG(L"%d x %d", uHigh, uLow); 172 } 173 174 float OffsetToFloat(const MFOffset& offset) 175 { 176 return offset.value + (static_cast<float>(offset.fract) / 65536.0f); 177 } 178 179 HRESULT LogVideoArea(const PROPVARIANT& var) 180 { 181 if (var.caub.cElems < sizeof(MFVideoArea)) 182 { 183 return MF_E_BUFFERTOOSMALL; 184 } 185 186 MFVideoArea *pArea = (MFVideoArea*)var.caub.pElems; 187 188 DBGMSG(L"(%f,%f) (%d,%d)", OffsetToFloat(pArea->OffsetX), OffsetToFloat(pArea->OffsetY), 189 pArea->Area.cx, pArea->Area.cy); 190 return S_OK; 191 } 192 193 // Handle certain known special cases. 194 HRESULT SpecialCaseAttributeValue(GUID guid, const PROPVARIANT& var) 195 { 196 if ((guid == MF_MT_FRAME_RATE) || (guid == MF_MT_FRAME_RATE_RANGE_MAX) || 197 (guid == MF_MT_FRAME_RATE_RANGE_MIN) || (guid == MF_MT_FRAME_SIZE) || 198 (guid == MF_MT_PIXEL_ASPECT_RATIO)) 199 { 200 // Attributes that contain two packed 32-bit values. 201 LogUINT32AsUINT64(var); 202 } 203 else if ((guid == MF_MT_GEOMETRIC_APERTURE) || 204 (guid == MF_MT_MINIMUM_DISPLAY_APERTURE) || 205 (guid == MF_MT_PAN_SCAN_APERTURE)) 206 { 207 // Attributes that an MFVideoArea structure. 208 return LogVideoArea(var); 209 } 210 else 211 { 212 return S_FALSE; 213 } 214 return S_OK; 215 } 216 217 void DBGMSG(PCWSTR format, ...) 218 { 219 va_list args; 220 va_start(args, format); 221 222 WCHAR msg[MAX_PATH]; 223 224 if (SUCCEEDED(StringCbVPrintf(msg, sizeof(msg), format, args))) 225 { 226 OutputDebugString(msg); 227 } 228 } 229 230 #ifndef IF_EQUAL_RETURN 231 #define IF_EQUAL_RETURN(param, val) if(val == param) return L#val 232 #endif 233 234 LPCWSTR GetGUIDNameConst(const GUID& guid) 235 { 236 IF_EQUAL_RETURN(guid, MF_MT_MAJOR_TYPE); 237 IF_EQUAL_RETURN(guid, MF_MT_MAJOR_TYPE); 238 IF_EQUAL_RETURN(guid, MF_MT_SUBTYPE); 239 IF_EQUAL_RETURN(guid, MF_MT_ALL_SAMPLES_INDEPENDENT); 240 IF_EQUAL_RETURN(guid, MF_MT_FIXED_SIZE_SAMPLES); 241 IF_EQUAL_RETURN(guid, MF_MT_COMPRESSED); 242 IF_EQUAL_RETURN(guid, MF_MT_SAMPLE_SIZE); 243 IF_EQUAL_RETURN(guid, MF_MT_WRAPPED_TYPE); 244 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_NUM_CHANNELS); 245 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_SAMPLES_PER_SECOND); 246 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND); 247 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_AVG_BYTES_PER_SECOND); 248 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_BLOCK_ALIGNMENT); 249 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_BITS_PER_SAMPLE); 250 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_VALID_BITS_PER_SAMPLE); 251 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_SAMPLES_PER_BLOCK); 252 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_CHANNEL_MASK); 253 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_FOLDDOWN_MATRIX); 254 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_PEAKREF); 255 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_PEAKTARGET); 256 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_AVGREF); 257 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_AVGTARGET); 258 IF_EQUAL_RETURN(guid, MF_MT_AUDIO_PREFER_WAVEFORMATEX); 259 IF_EQUAL_RETURN(guid, MF_MT_AAC_PAYLOAD_TYPE); 260 IF_EQUAL_RETURN(guid, MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION); 261 IF_EQUAL_RETURN(guid, MF_MT_FRAME_SIZE); 262 IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE); 263 IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE_RANGE_MAX); 264 IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE_RANGE_MIN); 265 IF_EQUAL_RETURN(guid, MF_MT_PIXEL_ASPECT_RATIO); 266 IF_EQUAL_RETURN(guid, MF_MT_DRM_FLAGS); 267 IF_EQUAL_RETURN(guid, MF_MT_PAD_CONTROL_FLAGS); 268 IF_EQUAL_RETURN(guid, MF_MT_SOURCE_CONTENT_HINT); 269 IF_EQUAL_RETURN(guid, MF_MT_VIDEO_CHROMA_SITING); 270 IF_EQUAL_RETURN(guid, MF_MT_INTERLACE_MODE); 271 IF_EQUAL_RETURN(guid, MF_MT_TRANSFER_FUNCTION); 272 IF_EQUAL_RETURN(guid, MF_MT_VIDEO_PRIMARIES); 273 IF_EQUAL_RETURN(guid, MF_MT_CUSTOM_VIDEO_PRIMARIES); 274 IF_EQUAL_RETURN(guid, MF_MT_YUV_MATRIX); 275 IF_EQUAL_RETURN(guid, MF_MT_VIDEO_LIGHTING); 276 IF_EQUAL_RETURN(guid, MF_MT_VIDEO_NOMINAL_RANGE); 277 IF_EQUAL_RETURN(guid, MF_MT_GEOMETRIC_APERTURE); 278 IF_EQUAL_RETURN(guid, MF_MT_MINIMUM_DISPLAY_APERTURE); 279 IF_EQUAL_RETURN(guid, MF_MT_PAN_SCAN_APERTURE); 280 IF_EQUAL_RETURN(guid, MF_MT_PAN_SCAN_ENABLED); 281 IF_EQUAL_RETURN(guid, MF_MT_AVG_BITRATE); 282 IF_EQUAL_RETURN(guid, MF_MT_AVG_BIT_ERROR_RATE); 283 IF_EQUAL_RETURN(guid, MF_MT_MAX_KEYFRAME_SPACING); 284 IF_EQUAL_RETURN(guid, MF_MT_DEFAULT_STRIDE); 285 IF_EQUAL_RETURN(guid, MF_MT_PALETTE); 286 IF_EQUAL_RETURN(guid, MF_MT_USER_DATA); 287 IF_EQUAL_RETURN(guid, MF_MT_AM_FORMAT_TYPE); 288 IF_EQUAL_RETURN(guid, MF_MT_MPEG_START_TIME_CODE); 289 IF_EQUAL_RETURN(guid, MF_MT_MPEG2_PROFILE); 290 IF_EQUAL_RETURN(guid, MF_MT_MPEG2_LEVEL); 291 IF_EQUAL_RETURN(guid, MF_MT_MPEG2_FLAGS); 292 IF_EQUAL_RETURN(guid, MF_MT_MPEG_SEQUENCE_HEADER); 293 IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_SRC_PACK_0); 294 IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_CTRL_PACK_0); 295 IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_SRC_PACK_1); 296 IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_CTRL_PACK_1); 297 IF_EQUAL_RETURN(guid, MF_MT_DV_VAUX_SRC_PACK); 298 IF_EQUAL_RETURN(guid, MF_MT_DV_VAUX_CTRL_PACK); 299 IF_EQUAL_RETURN(guid, MF_MT_ARBITRARY_HEADER); 300 IF_EQUAL_RETURN(guid, MF_MT_ARBITRARY_FORMAT); 301 IF_EQUAL_RETURN(guid, MF_MT_IMAGE_LOSS_TOLERANT); 302 IF_EQUAL_RETURN(guid, MF_MT_MPEG4_SAMPLE_DESCRIPTION); 303 IF_EQUAL_RETURN(guid, MF_MT_MPEG4_CURRENT_SAMPLE_ENTRY); 304 IF_EQUAL_RETURN(guid, MF_MT_ORIGINAL_4CC); 305 IF_EQUAL_RETURN(guid, MF_MT_ORIGINAL_WAVE_FORMAT_TAG); 306 307 // Media types 308 309 IF_EQUAL_RETURN(guid, MFMediaType_Audio); 310 IF_EQUAL_RETURN(guid, MFMediaType_Video); 311 IF_EQUAL_RETURN(guid, MFMediaType_Protected); 312 IF_EQUAL_RETURN(guid, MFMediaType_SAMI); 313 IF_EQUAL_RETURN(guid, MFMediaType_Script); 314 IF_EQUAL_RETURN(guid, MFMediaType_Image); 315 IF_EQUAL_RETURN(guid, MFMediaType_HTML); 316 IF_EQUAL_RETURN(guid, MFMediaType_Binary); 317 IF_EQUAL_RETURN(guid, MFMediaType_FileTransfer); 318 319 IF_EQUAL_RETURN(guid, MFVideoFormat_AI44); // FCC('AI44') 320 IF_EQUAL_RETURN(guid, MFVideoFormat_ARGB32); // D3DFMT_A8R8G8B8 321 IF_EQUAL_RETURN(guid, MFVideoFormat_AYUV); // FCC('AYUV') 322 IF_EQUAL_RETURN(guid, MFVideoFormat_DV25); // FCC('dv25') 323 IF_EQUAL_RETURN(guid, MFVideoFormat_DV50); // FCC('dv50') 324 IF_EQUAL_RETURN(guid, MFVideoFormat_DVH1); // FCC('dvh1') 325 IF_EQUAL_RETURN(guid, MFVideoFormat_DVSD); // FCC('dvsd') 326 IF_EQUAL_RETURN(guid, MFVideoFormat_DVSL); // FCC('dvsl') 327 IF_EQUAL_RETURN(guid, MFVideoFormat_H264); // FCC('H264') 328 IF_EQUAL_RETURN(guid, MFVideoFormat_I420); // FCC('I420') 329 IF_EQUAL_RETURN(guid, MFVideoFormat_IYUV); // FCC('IYUV') 330 IF_EQUAL_RETURN(guid, MFVideoFormat_M4S2); // FCC('M4S2') 331 IF_EQUAL_RETURN(guid, MFVideoFormat_MJPG); 332 IF_EQUAL_RETURN(guid, MFVideoFormat_MP43); // FCC('MP43') 333 IF_EQUAL_RETURN(guid, MFVideoFormat_MP4S); // FCC('MP4S') 334 IF_EQUAL_RETURN(guid, MFVideoFormat_MP4V); // FCC('MP4V') 335 IF_EQUAL_RETURN(guid, MFVideoFormat_MPG1); // FCC('MPG1') 336 IF_EQUAL_RETURN(guid, MFVideoFormat_MSS1); // FCC('MSS1') 337 IF_EQUAL_RETURN(guid, MFVideoFormat_MSS2); // FCC('MSS2') 338 IF_EQUAL_RETURN(guid, MFVideoFormat_NV11); // FCC('NV11') 339 IF_EQUAL_RETURN(guid, MFVideoFormat_NV12); // FCC('NV12') 340 IF_EQUAL_RETURN(guid, MFVideoFormat_P010); // FCC('P010') 341 IF_EQUAL_RETURN(guid, MFVideoFormat_P016); // FCC('P016') 342 IF_EQUAL_RETURN(guid, MFVideoFormat_P210); // FCC('P210') 343 IF_EQUAL_RETURN(guid, MFVideoFormat_P216); // FCC('P216') 344 IF_EQUAL_RETURN(guid, MFVideoFormat_RGB24); // D3DFMT_R8G8B8 345 IF_EQUAL_RETURN(guid, MFVideoFormat_RGB32); // D3DFMT_X8R8G8B8 346 IF_EQUAL_RETURN(guid, MFVideoFormat_RGB555); // D3DFMT_X1R5G5B5 347 IF_EQUAL_RETURN(guid, MFVideoFormat_RGB565); // D3DFMT_R5G6B5 348 IF_EQUAL_RETURN(guid, MFVideoFormat_RGB8); 349 IF_EQUAL_RETURN(guid, MFVideoFormat_UYVY); // FCC('UYVY') 350 IF_EQUAL_RETURN(guid, MFVideoFormat_v210); // FCC('v210') 351 IF_EQUAL_RETURN(guid, MFVideoFormat_v410); // FCC('v410') 352 IF_EQUAL_RETURN(guid, MFVideoFormat_WMV1); // FCC('WMV1') 353 IF_EQUAL_RETURN(guid, MFVideoFormat_WMV2); // FCC('WMV2') 354 IF_EQUAL_RETURN(guid, MFVideoFormat_WMV3); // FCC('WMV3') 355 IF_EQUAL_RETURN(guid, MFVideoFormat_WVC1); // FCC('WVC1') 356 IF_EQUAL_RETURN(guid, MFVideoFormat_Y210); // FCC('Y210') 357 IF_EQUAL_RETURN(guid, MFVideoFormat_Y216); // FCC('Y216') 358 IF_EQUAL_RETURN(guid, MFVideoFormat_Y410); // FCC('Y410') 359 IF_EQUAL_RETURN(guid, MFVideoFormat_Y416); // FCC('Y416') 360 IF_EQUAL_RETURN(guid, MFVideoFormat_Y41P); 361 IF_EQUAL_RETURN(guid, MFVideoFormat_Y41T); 362 IF_EQUAL_RETURN(guid, MFVideoFormat_YUY2); // FCC('YUY2') 363 IF_EQUAL_RETURN(guid, MFVideoFormat_YV12); // FCC('YV12') 364 IF_EQUAL_RETURN(guid, MFVideoFormat_YVYU); 365 366 IF_EQUAL_RETURN(guid, MFAudioFormat_PCM); // WAVE_FORMAT_PCM 367 IF_EQUAL_RETURN(guid, MFAudioFormat_Float); // WAVE_FORMAT_IEEE_FLOAT 368 IF_EQUAL_RETURN(guid, MFAudioFormat_DTS); // WAVE_FORMAT_DTS 369 IF_EQUAL_RETURN(guid, MFAudioFormat_Dolby_AC3_SPDIF); // WAVE_FORMAT_DOLBY_AC3_SPDIF 370 IF_EQUAL_RETURN(guid, MFAudioFormat_DRM); // WAVE_FORMAT_DRM 371 IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudioV8); // WAVE_FORMAT_WMAUDIO2 372 IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudioV9); // WAVE_FORMAT_WMAUDIO3 373 IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudio_Lossless); // WAVE_FORMAT_WMAUDIO_LOSSLESS 374 IF_EQUAL_RETURN(guid, MFAudioFormat_WMASPDIF); // WAVE_FORMAT_WMASPDIF 375 IF_EQUAL_RETURN(guid, MFAudioFormat_MSP1); // WAVE_FORMAT_WMAVOICE9 376 IF_EQUAL_RETURN(guid, MFAudioFormat_MP3); // WAVE_FORMAT_MPEGLAYER3 377 IF_EQUAL_RETURN(guid, MFAudioFormat_MPEG); // WAVE_FORMAT_MPEG 378 IF_EQUAL_RETURN(guid, MFAudioFormat_AAC); // WAVE_FORMAT_MPEG_HEAAC 379 IF_EQUAL_RETURN(guid, MFAudioFormat_ADTS); // WAVE_FORMAT_MPEG_ADTS_AAC 380 381 return NULL; 382 }

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轉載于:https://www.cnblogs.com/zhangchaosd/p/10686617.html

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