/content/media/wmf/WMFUtils.cpp

https://github.com/marcussaad/firefox · C++ · 384 lines · 340 code · 37 blank · 7 comment · 12 complexity · c1f162f5b21fc78b455aec56965e14a8 MD5 · raw file 

    

  1. /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

    2. 

  2. /* vim:set ts=2 sw=2 sts=2 et cindent: */

    3. 

  3. /* This Source Code Form is subject to the terms of the Mozilla Public

    4. 

  4.  * License, v. 2.0. If a copy of the MPL was not distributed with this

    5. 

  5.  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

    6. 

  6. 

    7. 

  7. #include "WMFUtils.h"

    8. 

  8. #include "mozilla/StandardInteger.h"

    9. 

  9. #include "mozilla/RefPtr.h"

    10. 

  10. #include "prlog.h"

    11. 

  11. #include "nsThreadUtils.h"

    12. 

  12. 

    13. 

  13. namespace mozilla {

    14. 

  14. 

    15. 

  15. struct GuidToName {

    16. 

  16.   GUID guid;

    17. 

  17.   const char* name;

    18. 

  18. };

    19. 

  19. 

    20. 

  20. #define GUID_TO_NAME_ENTRY(g) { g, #g }

    21. 

  21. #define INTERFACE_TO_NAME_ENTRY(i) {IID_##i, #i }

    22. 

  22. 

    23. 

  23. GuidToName GuidToNameTable[] = {

    24. 

  24.   GUID_TO_NAME_ENTRY(MF_MT_MAJOR_TYPE),

    25. 

  25.   GUID_TO_NAME_ENTRY(MF_MT_MAJOR_TYPE),

    26. 

  26.   GUID_TO_NAME_ENTRY(MF_MT_SUBTYPE),

    27. 

  27.   GUID_TO_NAME_ENTRY(MF_MT_ALL_SAMPLES_INDEPENDENT),

    28. 

  28.   GUID_TO_NAME_ENTRY(MF_MT_FIXED_SIZE_SAMPLES),

    29. 

  29.   GUID_TO_NAME_ENTRY(MF_MT_COMPRESSED),

    30. 

  30.   GUID_TO_NAME_ENTRY(MF_MT_SAMPLE_SIZE),

    31. 

  31.   GUID_TO_NAME_ENTRY(MF_MT_WRAPPED_TYPE),

    32. 

  32.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_NUM_CHANNELS),

    33. 

  33.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_SAMPLES_PER_SECOND),

    34. 

  34.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND),

    35. 

  35.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_AVG_BYTES_PER_SECOND),

    36. 

  36.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_BLOCK_ALIGNMENT),

    37. 

  37.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_BITS_PER_SAMPLE),

    38. 

  38.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_VALID_BITS_PER_SAMPLE),

    39. 

  39.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_SAMPLES_PER_BLOCK),

    40. 

  40.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_CHANNEL_MASK),

    41. 

  41.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_FOLDDOWN_MATRIX),

    42. 

  42.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_PEAKREF),

    43. 

  43.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_PEAKTARGET),

    44. 

  44.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_AVGREF),

    45. 

  45.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_WMADRC_AVGTARGET),

    46. 

  46.   GUID_TO_NAME_ENTRY(MF_MT_AUDIO_PREFER_WAVEFORMATEX),

    47. 

  47.   GUID_TO_NAME_ENTRY(MF_MT_AAC_PAYLOAD_TYPE),

    48. 

  48.   GUID_TO_NAME_ENTRY(MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION),

    49. 

  49.   GUID_TO_NAME_ENTRY(MF_MT_FRAME_SIZE),

    50. 

  50.   GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE),

    51. 

  51.   GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE_RANGE_MAX),

    52. 

  52.   GUID_TO_NAME_ENTRY(MF_MT_FRAME_RATE_RANGE_MIN),

    53. 

  53.   GUID_TO_NAME_ENTRY(MF_MT_PIXEL_ASPECT_RATIO),

    54. 

  54.   GUID_TO_NAME_ENTRY(MF_MT_DRM_FLAGS),

    55. 

  55.   GUID_TO_NAME_ENTRY(MF_MT_PAD_CONTROL_FLAGS),

    56. 

  56.   GUID_TO_NAME_ENTRY(MF_MT_SOURCE_CONTENT_HINT),

    57. 

  57.   GUID_TO_NAME_ENTRY(MF_MT_VIDEO_CHROMA_SITING),

    58. 

  58.   GUID_TO_NAME_ENTRY(MF_MT_INTERLACE_MODE),

    59. 

  59.   GUID_TO_NAME_ENTRY(MF_MT_TRANSFER_FUNCTION),

    60. 

  60.   GUID_TO_NAME_ENTRY(MF_MT_VIDEO_PRIMARIES),

    61. 

  61.   GUID_TO_NAME_ENTRY(MF_MT_CUSTOM_VIDEO_PRIMARIES),

    62. 

  62.   GUID_TO_NAME_ENTRY(MF_MT_YUV_MATRIX),

    63. 

  63.   GUID_TO_NAME_ENTRY(MF_MT_VIDEO_LIGHTING),

    64. 

  64.   GUID_TO_NAME_ENTRY(MF_MT_VIDEO_NOMINAL_RANGE),

    65. 

  65.   GUID_TO_NAME_ENTRY(MF_MT_GEOMETRIC_APERTURE),

    66. 

  66.   GUID_TO_NAME_ENTRY(MF_MT_MINIMUM_DISPLAY_APERTURE),

    67. 

  67.   GUID_TO_NAME_ENTRY(MF_MT_PAN_SCAN_APERTURE),

    68. 

  68.   GUID_TO_NAME_ENTRY(MF_MT_PAN_SCAN_ENABLED),

    69. 

  69.   GUID_TO_NAME_ENTRY(MF_MT_AVG_BITRATE),

    70. 

  70.   GUID_TO_NAME_ENTRY(MF_MT_AVG_BIT_ERROR_RATE),

    71. 

  71.   GUID_TO_NAME_ENTRY(MF_MT_MAX_KEYFRAME_SPACING),

    72. 

  72.   GUID_TO_NAME_ENTRY(MF_MT_DEFAULT_STRIDE),

    73. 

  73.   GUID_TO_NAME_ENTRY(MF_MT_PALETTE),

    74. 

  74.   GUID_TO_NAME_ENTRY(MF_MT_USER_DATA),

    75. 

  75.   GUID_TO_NAME_ENTRY(MF_MT_AM_FORMAT_TYPE),

    76. 

  76.   GUID_TO_NAME_ENTRY(MF_MT_MPEG_START_TIME_CODE),

    77. 

  77.   GUID_TO_NAME_ENTRY(MF_MT_MPEG2_PROFILE),

    78. 

  78.   GUID_TO_NAME_ENTRY(MF_MT_MPEG2_LEVEL),

    79. 

  79.   GUID_TO_NAME_ENTRY(MF_MT_MPEG2_FLAGS),

    80. 

  80.   GUID_TO_NAME_ENTRY(MF_MT_MPEG_SEQUENCE_HEADER),

    81. 

  81.   GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_SRC_PACK_0),

    82. 

  82.   GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_CTRL_PACK_0),

    83. 

  83.   GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_SRC_PACK_1),

    84. 

  84.   GUID_TO_NAME_ENTRY(MF_MT_DV_AAUX_CTRL_PACK_1),

    85. 

  85.   GUID_TO_NAME_ENTRY(MF_MT_DV_VAUX_SRC_PACK),

    86. 

  86.   GUID_TO_NAME_ENTRY(MF_MT_DV_VAUX_CTRL_PACK),

    87. 

  87.   GUID_TO_NAME_ENTRY(MF_MT_ARBITRARY_HEADER),

    88. 

  88.   GUID_TO_NAME_ENTRY(MF_MT_ARBITRARY_FORMAT),

    89. 

  89.   GUID_TO_NAME_ENTRY(MF_MT_IMAGE_LOSS_TOLERANT),

    90. 

  90.   GUID_TO_NAME_ENTRY(MF_MT_MPEG4_SAMPLE_DESCRIPTION),

    91. 

  91.   GUID_TO_NAME_ENTRY(MF_MT_MPEG4_CURRENT_SAMPLE_ENTRY),

    92. 

  92.   GUID_TO_NAME_ENTRY(MF_MT_ORIGINAL_4CC),

    93. 

  93.   GUID_TO_NAME_ENTRY(MF_MT_ORIGINAL_WAVE_FORMAT_TAG),

    94. 

  94. 

    95. 

  95.   GUID_TO_NAME_ENTRY(MFMediaType_Audio),

    96. 

  96.   GUID_TO_NAME_ENTRY(MFMediaType_Video),

    97. 

  97.   GUID_TO_NAME_ENTRY(MFMediaType_Protected),

    98. 

  98.   GUID_TO_NAME_ENTRY(MFMediaType_SAMI),

    99. 

  99.   GUID_TO_NAME_ENTRY(MFMediaType_Script),

    100. 

  100.   GUID_TO_NAME_ENTRY(MFMediaType_Image),

    101. 

  101.   GUID_TO_NAME_ENTRY(MFMediaType_HTML),

    102. 

  102.   GUID_TO_NAME_ENTRY(MFMediaType_Binary),

    103. 

  103.   GUID_TO_NAME_ENTRY(MFMediaType_FileTransfer),

    104. 

  104. 

    105. 

  105.   GUID_TO_NAME_ENTRY(MFVideoFormat_AI44),

    106. 

  106.   GUID_TO_NAME_ENTRY(MFVideoFormat_ARGB32),

    107. 

  107.   GUID_TO_NAME_ENTRY(MFVideoFormat_AYUV),

    108. 

  108.   GUID_TO_NAME_ENTRY(MFVideoFormat_DV25),

    109. 

  109.   GUID_TO_NAME_ENTRY(MFVideoFormat_DV50),

    110. 

  110.   GUID_TO_NAME_ENTRY(MFVideoFormat_DVH1),

    111. 

  111.   GUID_TO_NAME_ENTRY(MFVideoFormat_DVSD),

    112. 

  112.   GUID_TO_NAME_ENTRY(MFVideoFormat_DVSL),

    113. 

  113.   GUID_TO_NAME_ENTRY(MFVideoFormat_H264),

    114. 

  114.   GUID_TO_NAME_ENTRY(MFVideoFormat_I420),

    115. 

  115.   GUID_TO_NAME_ENTRY(MFVideoFormat_IYUV),

    116. 

  116.   GUID_TO_NAME_ENTRY(MFVideoFormat_M4S2),

    117. 

  117.   GUID_TO_NAME_ENTRY(MFVideoFormat_MJPG),

    118. 

  118.   GUID_TO_NAME_ENTRY(MFVideoFormat_MP43),

    119. 

  119.   GUID_TO_NAME_ENTRY(MFVideoFormat_MP4S),

    120. 

  120.   GUID_TO_NAME_ENTRY(MFVideoFormat_MP4V),

    121. 

  121.   GUID_TO_NAME_ENTRY(MFVideoFormat_MPG1),

    122. 

  122.   GUID_TO_NAME_ENTRY(MFVideoFormat_MSS1),

    123. 

  123.   GUID_TO_NAME_ENTRY(MFVideoFormat_MSS2),

    124. 

  124.   GUID_TO_NAME_ENTRY(MFVideoFormat_NV11),

    125. 

  125.   GUID_TO_NAME_ENTRY(MFVideoFormat_NV12),

    126. 

  126.   GUID_TO_NAME_ENTRY(MFVideoFormat_P010),

    127. 

  127.   GUID_TO_NAME_ENTRY(MFVideoFormat_P016),

    128. 

  128.   GUID_TO_NAME_ENTRY(MFVideoFormat_P210),

    129. 

  129.   GUID_TO_NAME_ENTRY(MFVideoFormat_P216),

    130. 

  130.   GUID_TO_NAME_ENTRY(MFVideoFormat_RGB24),

    131. 

  131.   GUID_TO_NAME_ENTRY(MFVideoFormat_RGB32),

    132. 

  132.   GUID_TO_NAME_ENTRY(MFVideoFormat_RGB555),

    133. 

  133.   GUID_TO_NAME_ENTRY(MFVideoFormat_RGB565),

    134. 

  134.   GUID_TO_NAME_ENTRY(MFVideoFormat_RGB8),

    135. 

  135.   GUID_TO_NAME_ENTRY(MFVideoFormat_UYVY),

    136. 

  136.   GUID_TO_NAME_ENTRY(MFVideoFormat_v210),

    137. 

  137.   GUID_TO_NAME_ENTRY(MFVideoFormat_v410),

    138. 

  138.   GUID_TO_NAME_ENTRY(MFVideoFormat_WMV1),

    139. 

  139.   GUID_TO_NAME_ENTRY(MFVideoFormat_WMV2),

    140. 

  140.   GUID_TO_NAME_ENTRY(MFVideoFormat_WMV3),

    141. 

  141.   GUID_TO_NAME_ENTRY(MFVideoFormat_WVC1),

    142. 

  142.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y210),

    143. 

  143.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y216),

    144. 

  144.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y410),

    145. 

  145.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y416),

    146. 

  146.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y41P),

    147. 

  147.   GUID_TO_NAME_ENTRY(MFVideoFormat_Y41T),

    148. 

  148.   GUID_TO_NAME_ENTRY(MFVideoFormat_YUY2),

    149. 

  149.   GUID_TO_NAME_ENTRY(MFVideoFormat_YV12),

    150. 

  150.   GUID_TO_NAME_ENTRY(MFVideoFormat_YVYU),

    151. 

  151. 

    152. 

  152.   GUID_TO_NAME_ENTRY(MFAudioFormat_PCM),

    153. 

  153.   GUID_TO_NAME_ENTRY(MFAudioFormat_Float),

    154. 

  154.   GUID_TO_NAME_ENTRY(MFAudioFormat_DTS),

    155. 

  155.   GUID_TO_NAME_ENTRY(MFAudioFormat_Dolby_AC3_SPDIF),

    156. 

  156.   GUID_TO_NAME_ENTRY(MFAudioFormat_DRM),

    157. 

  157.   GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudioV8),

    158. 

  158.   GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudioV9),

    159. 

  159.   GUID_TO_NAME_ENTRY(MFAudioFormat_WMAudio_Lossless),

    160. 

  160.   GUID_TO_NAME_ENTRY(MFAudioFormat_WMASPDIF),

    161. 

  161.   GUID_TO_NAME_ENTRY(MFAudioFormat_MSP1),

    162. 

  162.   GUID_TO_NAME_ENTRY(MFAudioFormat_MP3),

    163. 

  163.   GUID_TO_NAME_ENTRY(MFAudioFormat_MPEG),

    164. 

  164.   GUID_TO_NAME_ENTRY(MFAudioFormat_AAC),

    165. 

  165.   GUID_TO_NAME_ENTRY(MFAudioFormat_ADTS),

    166. 

  166. 

    167. 

  167.   // Interfaces which may be implemented by WMFByteStream.

    168. 

  168.   INTERFACE_TO_NAME_ENTRY(IUnknown),

    169. 

  169.   INTERFACE_TO_NAME_ENTRY(IMFByteStream),

    170. 

  170.   INTERFACE_TO_NAME_ENTRY(IMFMediaSource),

    171. 

  171.   INTERFACE_TO_NAME_ENTRY(IMFAttributes),

    172. 

  172.   INTERFACE_TO_NAME_ENTRY(IMFByteStreamBuffering),

    173. 

  173. };

    174. 

  174. 

    175. 

  175. nsCString GetGUIDName(const GUID& guid)

    176. 

  176. {

    177. 

  177.   unsigned numTypes = NS_ARRAY_LENGTH(GuidToNameTable);

    178. 

  178.   for (unsigned i = 0; i < numTypes; i++) {

    179. 

  179.     if (guid == GuidToNameTable[i].guid) {

    180. 

  180.       return nsDependentCString(GuidToNameTable[i].name);

    181. 

  181.     }

    182. 

  182.   }

    183. 

  183. 

    184. 

  184.   WCHAR* name = nullptr;

    185. 

  185.   HRESULT hr = StringFromCLSID(guid , &name);

    186. 

  186.   if (FAILED(hr)) {

    187. 

  187.     return nsDependentCString("GuidUnknown");

    188. 

  188.   }

    189. 

  189.   nsCString name_u8(NS_ConvertUTF16toUTF8(nsDependentString((PRUnichar*)(name))));

    190. 

  190.   CoTaskMemFree(name);

    191. 

  191.   return name_u8;

    192. 

  192. }

    193. 

  193. 

    194. 

  194. bool

    195. 

  195. SourceReaderHasStream(IMFSourceReader* aReader, const DWORD aIndex)

    196. 

  196. {

    197. 

  197.   RefPtr<IMFMediaType> nativeType;

    198. 

  198.   HRESULT hr = aReader->GetNativeMediaType(aIndex, 0, byRef(nativeType));

    199. 

  199.   return FAILED(hr) ? false : true;

    200. 

  200. }

    201. 

  201. 

    202. 

  202. namespace wmf {

    203. 

  203. 

    204. 

  204. static bool sDLLsLoaded = false;

    205. 

  205. static bool sFailedToLoadDlls = false;

    206. 

  206. 

    207. 

  207. struct WMFModule {

    208. 

  208.   const char* name;

    209. 

  209.   HMODULE handle;

    210. 

  210. };

    211. 

  211. 

    212. 

  212. static WMFModule sDLLs[] = {

    213. 

  213.   { "mfplat.dll", NULL },

    214. 

  214.   { "mfreadwrite.dll", NULL },

    215. 

  215.   { "propsys.dll", NULL },

    216. 

  216.   { "mf.dll", NULL }

    217. 

  217. };

    218. 

  218. 

    219. 

  219. HRESULT

    220. 

  220. LoadDLLs()

    221. 

  221. {

    222. 

  222.   NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");

    223. 

  223. 

    224. 

  224.   if (sDLLsLoaded) {

    225. 

  225.     return S_OK;

    226. 

  226.   }

    227. 

  227.   if (sFailedToLoadDlls) {

    228. 

  228.     return E_FAIL;

    229. 

  229.   }

    230. 

  230. 

    231. 

  231.   // Try to load all the required DLLs.

    232. 

  232.   uint32_t dllLength = NS_ARRAY_LENGTH(sDLLs);

    233. 

  233.   for (uint32_t i = 0; i < dllLength; i++) {

    234. 

  234.     sDLLs[i].handle = LoadLibraryA(sDLLs[i].name);

    235. 

  235.     if (!sDLLs[i].handle) {

    236. 

  236.       sFailedToLoadDlls = true;

    237. 

  237.       UnloadDLLs();

    238. 

  238.       wmf::MFShutdown();

    239. 

  239.       return E_FAIL;

    240. 

  240.     }

    241. 

  241.   }

    242. 

  242. 

    243. 

  243.   sDLLsLoaded = true;

    244. 

  244. 

    245. 

  245.   return S_OK;

    246. 

  246. }

    247. 

  247. 

    248. 

  248. HRESULT

    249. 

  249. UnloadDLLs()

    250. 

  250. {

    251. 

  251.   NS_ASSERTION(NS_IsMainThread(), "Should be on main thread.");

    252. 

  252. 

    253. 

  253.   uint32_t length = NS_ARRAY_LENGTH(sDLLs);

    254. 

  254.   for (uint32_t i = 0; i < length; i++) {

    255. 

  255.     if (sDLLs[i].handle) {

    256. 

  256.       FreeLibrary(sDLLs[i].handle);

    257. 

  257.       sDLLs[i].handle = NULL;

    258. 

  258.     }

    259. 

  259.     sDLLsLoaded = false;

    260. 

  260.   }

    261. 

  261.   return S_OK;

    262. 

  262. }

    263. 

  263. 

    264. 

  264. #define ENSURE_FUNCTION_PTR(FunctionName, DLL) \

    265. 

  265.   static FunctionName##Ptr_t FunctionName##Ptr = nullptr; \

    266. 

  266.   if (!FunctionName##Ptr) { \

    267. 

  267.     FunctionName##Ptr = (FunctionName##Ptr_t)GetProcAddress(GetModuleHandle( #DLL ), #FunctionName ); \

    268. 

  268.     if (!FunctionName##Ptr) { \

    269. 

  269.       NS_WARNING("Failed to get GetProcAddress of " #FunctionName " from " #DLL ); \

    270. 

  270.       return E_FAIL; \

    271. 

  271.     } \

    272. 

  272.   }

    273. 

  273. 

    274. 

  274. #define DECL_FUNCTION_PTR(FunctionName, ...) \

    275. 

  275.   typedef HRESULT (STDMETHODCALLTYPE * FunctionName##Ptr_t)(__VA_ARGS__)

    276. 

  276. 

    277. 

  277. HRESULT

    278. 

  278. MFStartup()

    279. 

  279. {

    280. 

  280.   DECL_FUNCTION_PTR(MFStartup, ULONG, DWORD);

    281. 

  281.   ENSURE_FUNCTION_PTR(MFStartup, Mfplat.dll)

    282. 

  282.   return MFStartupPtr(MF_VERSION, MFSTARTUP_FULL);

    283. 

  283. }

    284. 

  284. 

    285. 

  285. HRESULT

    286. 

  286. MFShutdown()

    287. 

  287. {

    288. 

  288.   DECL_FUNCTION_PTR(MFShutdown);

    289. 

  289.   ENSURE_FUNCTION_PTR(MFShutdown, Mfplat.dll)

    290. 

  290.   return (MFShutdownPtr)();

    291. 

  291. }

    292. 

  292. 

    293. 

  293. HRESULT MFCreateAsyncResult(IUnknown *aUnkObject,

    294. 

  294.                             IMFAsyncCallback *aCallback,

    295. 

  295.                             IUnknown *aUnkState,

    296. 

  296.                             IMFAsyncResult **aOutAsyncResult)

    297. 

  297. {

    298. 

  298.   DECL_FUNCTION_PTR(MFCreateAsyncResult, IUnknown*, IMFAsyncCallback*, IUnknown*, IMFAsyncResult**);

    299. 

  299.   ENSURE_FUNCTION_PTR(MFCreateAsyncResult, Mfplat.dll)

    300. 

  300.   return (MFCreateAsyncResultPtr)(aUnkObject, aCallback, aUnkState, aOutAsyncResult);

    301. 

  301. }

    302. 

  302. 

    303. 

  303. HRESULT

    304. 

  304. MFInvokeCallback(IMFAsyncResult *aAsyncResult)

    305. 

  305. {

    306. 

  306.   DECL_FUNCTION_PTR(MFInvokeCallback, IMFAsyncResult*);

    307. 

  307.   ENSURE_FUNCTION_PTR(MFInvokeCallback, Mfplat.dll);

    308. 

  308.   return (MFInvokeCallbackPtr)(aAsyncResult);

    309. 

  309. }

    310. 

  310. 

    311. 

  311. HRESULT

    312. 

  312. MFCreateMediaType(IMFMediaType **aOutMFType)

    313. 

  313. {

    314. 

  314.   DECL_FUNCTION_PTR(MFCreateMediaType, IMFMediaType**);

    315. 

  315.   ENSURE_FUNCTION_PTR(MFCreateMediaType, Mfplat.dll)

    316. 

  316.   return (MFCreateMediaTypePtr)(aOutMFType);

    317. 

  317. }

    318. 

  318. 

    319. 

  319. HRESULT

    320. 

  320. MFCreateSourceReaderFromByteStream(IMFByteStream *aByteStream,

    321. 

  321.                                    IMFAttributes *aAttributes,

    322. 

  322.                                    IMFSourceReader **aOutSourceReader)

    323. 

  323. {

    324. 

  324.   DECL_FUNCTION_PTR(MFCreateSourceReaderFromByteStream, IMFByteStream*, IMFAttributes*, IMFSourceReader**);

    325. 

  325.   ENSURE_FUNCTION_PTR(MFCreateSourceReaderFromByteStream, Mfreadwrite.dll)

    326. 

  326.   return (MFCreateSourceReaderFromByteStreamPtr)(aByteStream,

    327. 

  327.                                                  aAttributes,

    328. 

  328.                                                  aOutSourceReader);

    329. 

  329. }

    330. 

  330. 

    331. 

  331. HRESULT

    332. 

  332. PropVariantToUInt32(REFPROPVARIANT aPropvar, ULONG *aOutUL)

    333. 

  333. {

    334. 

  334.   DECL_FUNCTION_PTR(PropVariantToUInt32, REFPROPVARIANT, ULONG *);

    335. 

  335.   ENSURE_FUNCTION_PTR(PropVariantToUInt32, Propsys.dll)

    336. 

  336.   return (PropVariantToUInt32Ptr)(aPropvar, aOutUL);

    337. 

  337. }

    338. 

  338. 

    339. 

  339. HRESULT PropVariantToInt64(REFPROPVARIANT aPropVar, LONGLONG *aOutLL)

    340. 

  340. {

    341. 

  341.   DECL_FUNCTION_PTR(PropVariantToInt64, REFPROPVARIANT, LONGLONG *);

    342. 

  342.   ENSURE_FUNCTION_PTR(PropVariantToInt64, Propsys.dll)

    343. 

  343.   return (PropVariantToInt64Ptr)(aPropVar, aOutLL);

    344. 

  344. }

    345. 

  345. 

    346. 

  346. HRESULT MFTGetInfo(CLSID aClsidMFT,

    347. 

  347.                    LPWSTR *aOutName,

    348. 

  348.                    MFT_REGISTER_TYPE_INFO **aOutInputTypes,

    349. 

  349.                    UINT32 *aOutNumInputTypes,

    350. 

  350.                    MFT_REGISTER_TYPE_INFO **aOutOutputTypes,

    351. 

  351.                    UINT32 *aOutNumOutputTypes,

    352. 

  352.                    IMFAttributes **aOutAttributes)

    353. 

  353. {

    354. 

  354.   DECL_FUNCTION_PTR(MFTGetInfo, CLSID, LPWSTR*, MFT_REGISTER_TYPE_INFO**, UINT32*, MFT_REGISTER_TYPE_INFO**, UINT32*, IMFAttributes**);

    355. 

  355.   ENSURE_FUNCTION_PTR(MFTGetInfo, Mfplat.dll)

    356. 

  356.   return (MFTGetInfoPtr)(aClsidMFT,

    357. 

  357.                          aOutName,

    358. 

  358.                          aOutInputTypes,

    359. 

  359.                          aOutNumInputTypes,

    360. 

  360.                          aOutOutputTypes,

    361. 

  361.                          aOutNumOutputTypes,

    362. 

  362.                          aOutAttributes);

    363. 

  363. }

    364. 

  364. 

    365. 

  365. HRESULT MFGetStrideForBitmapInfoHeader(DWORD aFormat,

    366. 

  366.                                        DWORD aWidth,

    367. 

  367.                                        LONG *aOutStride)

    368. 

  368. {

    369. 

  369.   DECL_FUNCTION_PTR(MFGetStrideForBitmapInfoHeader, DWORD, DWORD, LONG*);

    370. 

  370.   ENSURE_FUNCTION_PTR(MFGetStrideForBitmapInfoHeader, Mfplat.dll)

    371. 

  371.   return (MFGetStrideForBitmapInfoHeaderPtr)(aFormat, aWidth, aOutStride);

    372. 

  372. }

    373. 

  373. 

    374. 

  374. HRESULT MFCreateSourceReaderFromURL(LPCWSTR aURL,

    375. 

  375.                                     IMFAttributes *aAttributes,

    376. 

  376.                                     IMFSourceReader **aSourceReader)

    377. 

  377. {

    378. 

  378.   DECL_FUNCTION_PTR(MFCreateSourceReaderFromURL, LPCWSTR, IMFAttributes*, IMFSourceReader**);

    379. 

  379.   ENSURE_FUNCTION_PTR(MFCreateSourceReaderFromURL, Mfreadwrite.dll)

    380. 

  380.   return (MFCreateSourceReaderFromURLPtr)(aURL, aAttributes, aSourceReader);

    381. 

  381. }

    382. 

  382. 

    383. 

  383. } // end namespace wmf

    384. 

  384. } // end namespace mozilla
    385.