avconv_dxva2.c

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