You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

563 lines
18KB

  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #include <windows.h>
  19. #ifdef _WIN32_WINNT
  20. #undef _WIN32_WINNT
  21. #endif
  22. #define _WIN32_WINNT 0x0600
  23. #define DXVA2API_USE_BITFIELDS
  24. #define COBJMACROS
  25. #include <stdint.h>
  26. #include <d3d9.h>
  27. #include <dxva2api.h>
  28. #include "ffmpeg.h"
  29. #include "libavcodec/dxva2.h"
  30. #include "libavutil/avassert.h"
  31. #include "libavutil/buffer.h"
  32. #include "libavutil/frame.h"
  33. #include "libavutil/imgutils.h"
  34. #include "libavutil/pixfmt.h"
  35. #include "libavutil/hwcontext.h"
  36. #include "libavutil/hwcontext_dxva2.h"
  37. /* define all the GUIDs used directly here,
  38. to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
  39. #include <initguid.h>
  40. DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
  41. DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
  42. DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
  43. DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
  44. DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
  45. DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
  46. DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
  47. DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
  48. DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0);
  49. DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main10,0x107af0e0, 0xef1a,0x4d19,0xab,0xa8,0x67,0xa1,0x63,0x07,0x3d,0x13);
  50. DEFINE_GUID(DXVA2_ModeVP9_VLD_Profile0, 0x463707f8, 0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e);
  51. DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
  52. DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
  53. typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
  54. typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  55. typedef struct dxva2_mode {
  56. const GUID *guid;
  57. enum AVCodecID codec;
  58. } dxva2_mode;
  59. static const dxva2_mode dxva2_modes[] = {
  60. /* MPEG-2 */
  61. { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
  62. { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
  63. /* H.264 */
  64. { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
  65. { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
  66. /* Intel specific H.264 mode */
  67. { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
  68. /* VC-1 / WMV3 */
  69. { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
  70. { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
  71. { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
  72. { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
  73. /* HEVC/H.265 */
  74. { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC },
  75. { &DXVA2_ModeHEVC_VLD_Main10,AV_CODEC_ID_HEVC },
  76. /* VP8/9 */
  77. { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 },
  78. { NULL, 0 },
  79. };
  80. typedef struct DXVA2DevicePriv {
  81. HMODULE d3dlib;
  82. HMODULE dxva2lib;
  83. HANDLE deviceHandle;
  84. IDirect3D9 *d3d9;
  85. IDirect3DDevice9 *d3d9device;
  86. } DXVA2DevicePriv;
  87. typedef struct DXVA2Context {
  88. IDirectXVideoDecoder *decoder;
  89. GUID decoder_guid;
  90. DXVA2_ConfigPictureDecode decoder_config;
  91. IDirectXVideoDecoderService *decoder_service;
  92. AVFrame *tmp_frame;
  93. AVBufferRef *hw_device_ctx;
  94. AVBufferRef *hw_frames_ctx;
  95. } DXVA2Context;
  96. static void dxva2_device_uninit(AVHWDeviceContext *ctx)
  97. {
  98. AVDXVA2DeviceContext *hwctx = ctx->hwctx;
  99. DXVA2DevicePriv *priv = ctx->user_opaque;
  100. if (hwctx->devmgr && priv->deviceHandle != INVALID_HANDLE_VALUE)
  101. IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->deviceHandle);
  102. if (hwctx->devmgr)
  103. IDirect3DDeviceManager9_Release(hwctx->devmgr);
  104. if (priv->d3d9device)
  105. IDirect3DDevice9_Release(priv->d3d9device);
  106. if (priv->d3d9)
  107. IDirect3D9_Release(priv->d3d9);
  108. if (priv->d3dlib)
  109. FreeLibrary(priv->d3dlib);
  110. if (priv->dxva2lib)
  111. FreeLibrary(priv->dxva2lib);
  112. av_freep(&ctx->user_opaque);
  113. }
  114. static void dxva2_uninit(AVCodecContext *s)
  115. {
  116. InputStream *ist = s->opaque;
  117. DXVA2Context *ctx = ist->hwaccel_ctx;
  118. ist->hwaccel_uninit = NULL;
  119. ist->hwaccel_get_buffer = NULL;
  120. ist->hwaccel_retrieve_data = NULL;
  121. if (ctx->decoder_service)
  122. IDirectXVideoDecoderService_Release(ctx->decoder_service);
  123. av_buffer_unref(&ctx->hw_frames_ctx);
  124. av_buffer_unref(&ctx->hw_device_ctx);
  125. av_frame_free(&ctx->tmp_frame);
  126. av_freep(&ist->hwaccel_ctx);
  127. av_freep(&s->hwaccel_context);
  128. }
  129. static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
  130. {
  131. InputStream *ist = s->opaque;
  132. DXVA2Context *ctx = ist->hwaccel_ctx;
  133. return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0);
  134. }
  135. static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
  136. {
  137. InputStream *ist = s->opaque;
  138. DXVA2Context *ctx = ist->hwaccel_ctx;
  139. int ret;
  140. ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0);
  141. if (ret < 0)
  142. return ret;
  143. ret = av_frame_copy_props(ctx->tmp_frame, frame);
  144. if (ret < 0) {
  145. av_frame_unref(ctx->tmp_frame);
  146. return ret;
  147. }
  148. av_frame_unref(frame);
  149. av_frame_move_ref(frame, ctx->tmp_frame);
  150. return 0;
  151. }
  152. static int dxva2_alloc(AVCodecContext *s)
  153. {
  154. InputStream *ist = s->opaque;
  155. int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
  156. DXVA2Context *ctx;
  157. pDirect3DCreate9 *createD3D = NULL;
  158. pCreateDeviceManager9 *createDeviceManager = NULL;
  159. HRESULT hr;
  160. D3DPRESENT_PARAMETERS d3dpp = {0};
  161. D3DDISPLAYMODE d3ddm;
  162. unsigned resetToken = 0;
  163. UINT adapter = D3DADAPTER_DEFAULT;
  164. AVHWDeviceContext *device_ctx;
  165. AVDXVA2DeviceContext *device_hwctx;
  166. DXVA2DevicePriv *device_priv;
  167. int ret;
  168. ctx = av_mallocz(sizeof(*ctx));
  169. if (!ctx)
  170. return AVERROR(ENOMEM);
  171. ist->hwaccel_ctx = ctx;
  172. ist->hwaccel_uninit = dxva2_uninit;
  173. ist->hwaccel_get_buffer = dxva2_get_buffer;
  174. ist->hwaccel_retrieve_data = dxva2_retrieve_data;
  175. ctx->hw_device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DXVA2);
  176. if (!ctx->hw_device_ctx)
  177. goto fail;
  178. device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data;
  179. device_hwctx = device_ctx->hwctx;
  180. device_priv = av_mallocz(sizeof(*device_priv));
  181. if (!device_priv)
  182. goto fail;
  183. device_ctx->user_opaque = device_priv;
  184. device_ctx->free = dxva2_device_uninit;
  185. device_priv->deviceHandle = INVALID_HANDLE_VALUE;
  186. device_priv->d3dlib = LoadLibrary("d3d9.dll");
  187. if (!device_priv->d3dlib) {
  188. av_log(NULL, loglevel, "Failed to load D3D9 library\n");
  189. goto fail;
  190. }
  191. device_priv->dxva2lib = LoadLibrary("dxva2.dll");
  192. if (!device_priv->dxva2lib) {
  193. av_log(NULL, loglevel, "Failed to load DXVA2 library\n");
  194. goto fail;
  195. }
  196. createD3D = (pDirect3DCreate9 *)GetProcAddress(device_priv->d3dlib, "Direct3DCreate9");
  197. if (!createD3D) {
  198. av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n");
  199. goto fail;
  200. }
  201. createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(device_priv->dxva2lib, "DXVA2CreateDirect3DDeviceManager9");
  202. if (!createDeviceManager) {
  203. av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
  204. goto fail;
  205. }
  206. device_priv->d3d9 = createD3D(D3D_SDK_VERSION);
  207. if (!device_priv->d3d9) {
  208. av_log(NULL, loglevel, "Failed to create IDirect3D object\n");
  209. goto fail;
  210. }
  211. if (ist->hwaccel_device) {
  212. adapter = atoi(ist->hwaccel_device);
  213. av_log(NULL, AV_LOG_INFO, "Using HWAccel device %d\n", adapter);
  214. }
  215. IDirect3D9_GetAdapterDisplayMode(device_priv->d3d9, adapter, &d3ddm);
  216. d3dpp.Windowed = TRUE;
  217. d3dpp.BackBufferWidth = 640;
  218. d3dpp.BackBufferHeight = 480;
  219. d3dpp.BackBufferCount = 0;
  220. d3dpp.BackBufferFormat = d3ddm.Format;
  221. d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
  222. d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
  223. hr = IDirect3D9_CreateDevice(device_priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
  224. D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
  225. &d3dpp, &device_priv->d3d9device);
  226. if (FAILED(hr)) {
  227. av_log(NULL, loglevel, "Failed to create Direct3D device\n");
  228. goto fail;
  229. }
  230. hr = createDeviceManager(&resetToken, &device_hwctx->devmgr);
  231. if (FAILED(hr)) {
  232. av_log(NULL, loglevel, "Failed to create Direct3D device manager\n");
  233. goto fail;
  234. }
  235. hr = IDirect3DDeviceManager9_ResetDevice(device_hwctx->devmgr, device_priv->d3d9device, resetToken);
  236. if (FAILED(hr)) {
  237. av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n");
  238. goto fail;
  239. }
  240. hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &device_priv->deviceHandle);
  241. if (FAILED(hr)) {
  242. av_log(NULL, loglevel, "Failed to open device handle\n");
  243. goto fail;
  244. }
  245. hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_priv->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
  246. if (FAILED(hr)) {
  247. av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
  248. goto fail;
  249. }
  250. ret = av_hwdevice_ctx_init(ctx->hw_device_ctx);
  251. if (ret < 0) {
  252. av_log(NULL, loglevel, "Failed to initialize the HW device context\n");
  253. goto fail;
  254. }
  255. ctx->tmp_frame = av_frame_alloc();
  256. if (!ctx->tmp_frame)
  257. goto fail;
  258. s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
  259. if (!s->hwaccel_context)
  260. goto fail;
  261. return 0;
  262. fail:
  263. dxva2_uninit(s);
  264. return AVERROR(EINVAL);
  265. }
  266. static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
  267. const DXVA2_VideoDesc *desc,
  268. DXVA2_ConfigPictureDecode *config)
  269. {
  270. InputStream *ist = s->opaque;
  271. int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
  272. DXVA2Context *ctx = ist->hwaccel_ctx;
  273. unsigned cfg_count = 0, best_score = 0;
  274. DXVA2_ConfigPictureDecode *cfg_list = NULL;
  275. DXVA2_ConfigPictureDecode best_cfg = {{0}};
  276. HRESULT hr;
  277. int i;
  278. hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
  279. if (FAILED(hr)) {
  280. av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
  281. return AVERROR(EINVAL);
  282. }
  283. for (i = 0; i < cfg_count; i++) {
  284. DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
  285. unsigned score;
  286. if (cfg->ConfigBitstreamRaw == 1)
  287. score = 1;
  288. else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
  289. score = 2;
  290. else
  291. continue;
  292. if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
  293. score += 16;
  294. if (score > best_score) {
  295. best_score = score;
  296. best_cfg = *cfg;
  297. }
  298. }
  299. CoTaskMemFree(cfg_list);
  300. if (!best_score) {
  301. av_log(NULL, loglevel, "No valid decoder configuration available\n");
  302. return AVERROR(EINVAL);
  303. }
  304. *config = best_cfg;
  305. return 0;
  306. }
  307. static int dxva2_create_decoder(AVCodecContext *s)
  308. {
  309. InputStream *ist = s->opaque;
  310. int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
  311. DXVA2Context *ctx = ist->hwaccel_ctx;
  312. struct dxva_context *dxva_ctx = s->hwaccel_context;
  313. GUID *guid_list = NULL;
  314. unsigned guid_count = 0, i, j;
  315. GUID device_guid = GUID_NULL;
  316. const D3DFORMAT surface_format = (s->sw_pix_fmt == AV_PIX_FMT_YUV420P10) ? MKTAG('P','0','1','0') : MKTAG('N','V','1','2');
  317. D3DFORMAT target_format = 0;
  318. DXVA2_VideoDesc desc = { 0 };
  319. DXVA2_ConfigPictureDecode config;
  320. HRESULT hr;
  321. int surface_alignment, num_surfaces;
  322. int ret;
  323. AVDXVA2FramesContext *frames_hwctx;
  324. AVHWFramesContext *frames_ctx;
  325. hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
  326. if (FAILED(hr)) {
  327. av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
  328. goto fail;
  329. }
  330. for (i = 0; dxva2_modes[i].guid; i++) {
  331. D3DFORMAT *target_list = NULL;
  332. unsigned target_count = 0;
  333. const dxva2_mode *mode = &dxva2_modes[i];
  334. if (mode->codec != s->codec_id)
  335. continue;
  336. for (j = 0; j < guid_count; j++) {
  337. if (IsEqualGUID(mode->guid, &guid_list[j]))
  338. break;
  339. }
  340. if (j == guid_count)
  341. continue;
  342. hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
  343. if (FAILED(hr)) {
  344. continue;
  345. }
  346. for (j = 0; j < target_count; j++) {
  347. const D3DFORMAT format = target_list[j];
  348. if (format == surface_format) {
  349. target_format = format;
  350. break;
  351. }
  352. }
  353. CoTaskMemFree(target_list);
  354. if (target_format) {
  355. device_guid = *mode->guid;
  356. break;
  357. }
  358. }
  359. CoTaskMemFree(guid_list);
  360. if (IsEqualGUID(&device_guid, &GUID_NULL)) {
  361. av_log(NULL, loglevel, "No decoder device for codec found\n");
  362. goto fail;
  363. }
  364. desc.SampleWidth = s->coded_width;
  365. desc.SampleHeight = s->coded_height;
  366. desc.Format = target_format;
  367. ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
  368. if (ret < 0) {
  369. goto fail;
  370. }
  371. /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
  372. but it causes issues for H.264 on certain AMD GPUs..... */
  373. if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
  374. surface_alignment = 32;
  375. /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
  376. all coding features have enough room to work with */
  377. else if (s->codec_id == AV_CODEC_ID_HEVC)
  378. surface_alignment = 128;
  379. else
  380. surface_alignment = 16;
  381. /* 4 base work surfaces */
  382. num_surfaces = 4;
  383. /* add surfaces based on number of possible refs */
  384. if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
  385. num_surfaces += 16;
  386. else if (s->codec_id == AV_CODEC_ID_VP9)
  387. num_surfaces += 8;
  388. else
  389. num_surfaces += 2;
  390. /* add extra surfaces for frame threading */
  391. if (s->active_thread_type & FF_THREAD_FRAME)
  392. num_surfaces += s->thread_count;
  393. ctx->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->hw_device_ctx);
  394. if (!ctx->hw_frames_ctx)
  395. goto fail;
  396. frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
  397. frames_hwctx = frames_ctx->hwctx;
  398. frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
  399. frames_ctx->sw_format = (target_format == MKTAG('P','0','1','0') ? AV_PIX_FMT_P010 : AV_PIX_FMT_NV12);
  400. frames_ctx->width = FFALIGN(s->coded_width, surface_alignment);
  401. frames_ctx->height = FFALIGN(s->coded_height, surface_alignment);
  402. frames_ctx->initial_pool_size = num_surfaces;
  403. frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
  404. ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
  405. if (ret < 0) {
  406. av_log(NULL, loglevel, "Failed to initialize the HW frames context\n");
  407. goto fail;
  408. }
  409. hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
  410. &desc, &config, frames_hwctx->surfaces,
  411. frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release);
  412. if (FAILED(hr)) {
  413. av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
  414. goto fail;
  415. }
  416. ctx->decoder_guid = device_guid;
  417. ctx->decoder_config = config;
  418. dxva_ctx->cfg = &ctx->decoder_config;
  419. dxva_ctx->decoder = frames_hwctx->decoder_to_release;
  420. dxva_ctx->surface = frames_hwctx->surfaces;
  421. dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
  422. if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
  423. dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
  424. return 0;
  425. fail:
  426. av_buffer_unref(&ctx->hw_frames_ctx);
  427. return AVERROR(EINVAL);
  428. }
  429. int dxva2_init(AVCodecContext *s)
  430. {
  431. InputStream *ist = s->opaque;
  432. int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
  433. DXVA2Context *ctx;
  434. int ret;
  435. if (!ist->hwaccel_ctx) {
  436. ret = dxva2_alloc(s);
  437. if (ret < 0)
  438. return ret;
  439. }
  440. ctx = ist->hwaccel_ctx;
  441. if (s->codec_id == AV_CODEC_ID_H264 &&
  442. (s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) {
  443. av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
  444. return AVERROR(EINVAL);
  445. }
  446. if (s->codec_id == AV_CODEC_ID_HEVC &&
  447. s->profile != FF_PROFILE_HEVC_MAIN && s->profile != FF_PROFILE_HEVC_MAIN_10) {
  448. av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile);
  449. return AVERROR(EINVAL);
  450. }
  451. av_buffer_unref(&ctx->hw_frames_ctx);
  452. ret = dxva2_create_decoder(s);
  453. if (ret < 0) {
  454. av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");
  455. return ret;
  456. }
  457. return 0;
  458. }