/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <windows.h> #ifdef _WIN32_WINNT #undef _WIN32_WINNT #endif #define _WIN32_WINNT 0x0600 #define DXVA2API_USE_BITFIELDS #define COBJMACROS #include <stdint.h> #include <d3d9.h> #include <dxva2api.h> #include "ffmpeg.h" #include "libavcodec/dxva2.h" #include "libavutil/avassert.h" #include "libavutil/buffer.h" #include "libavutil/frame.h" #include "libavutil/imgutils.h" #include "libavutil/pixfmt.h" /* define all the GUIDs used directly here, to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */ #include <initguid.h> DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02); DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9); DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60); DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5); DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5); DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6); DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5); DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5); DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0); DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5); DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00); typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT); typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **); typedef struct dxva2_mode { const GUID *guid; enum AVCodecID codec; } dxva2_mode; static const dxva2_mode dxva2_modes[] = { /* MPEG-2 */ { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO }, { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO }, /* H.264 */ { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 }, { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 }, /* Intel specific H.264 mode */ { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 }, /* VC-1 / WMV3 */ { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 }, { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 }, { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 }, { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 }, /* HEVC/H.265 */ { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC }, { NULL, 0 }, }; typedef struct surface_info { int used; uint64_t age; } surface_info; typedef struct DXVA2Context { HMODULE d3dlib; HMODULE dxva2lib; HANDLE deviceHandle; IDirect3D9 *d3d9; IDirect3DDevice9 *d3d9device; IDirect3DDeviceManager9 *d3d9devmgr; IDirectXVideoDecoderService *decoder_service; IDirectXVideoDecoder *decoder; GUID decoder_guid; DXVA2_ConfigPictureDecode decoder_config; LPDIRECT3DSURFACE9 *surfaces; surface_info *surface_infos; uint32_t num_surfaces; uint64_t surface_age; AVFrame *tmp_frame; } DXVA2Context; typedef struct DXVA2SurfaceWrapper { DXVA2Context *ctx; LPDIRECT3DSURFACE9 surface; IDirectXVideoDecoder *decoder; } DXVA2SurfaceWrapper; static void dxva2_destroy_decoder(AVCodecContext *s) { InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; int i; if (ctx->surfaces) { for (i = 0; i < ctx->num_surfaces; i++) { if (ctx->surfaces[i]) IDirect3DSurface9_Release(ctx->surfaces[i]); } } av_freep(&ctx->surfaces); av_freep(&ctx->surface_infos); ctx->num_surfaces = 0; ctx->surface_age = 0; if (ctx->decoder) { IDirectXVideoDecoder_Release(ctx->decoder); ctx->decoder = NULL; } } static void dxva2_uninit(AVCodecContext *s) { InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; ist->hwaccel_uninit = NULL; ist->hwaccel_get_buffer = NULL; ist->hwaccel_retrieve_data = NULL; if (ctx->decoder) dxva2_destroy_decoder(s); if (ctx->decoder_service) IDirectXVideoDecoderService_Release(ctx->decoder_service); if (ctx->d3d9devmgr && ctx->deviceHandle != INVALID_HANDLE_VALUE) IDirect3DDeviceManager9_CloseDeviceHandle(ctx->d3d9devmgr, ctx->deviceHandle); if (ctx->d3d9devmgr) IDirect3DDeviceManager9_Release(ctx->d3d9devmgr); if (ctx->d3d9device) IDirect3DDevice9_Release(ctx->d3d9device); if (ctx->d3d9) IDirect3D9_Release(ctx->d3d9); if (ctx->d3dlib) FreeLibrary(ctx->d3dlib); if (ctx->dxva2lib) FreeLibrary(ctx->dxva2lib); av_frame_free(&ctx->tmp_frame); av_freep(&ist->hwaccel_ctx); av_freep(&s->hwaccel_context); } static void dxva2_release_buffer(void *opaque, uint8_t *data) { DXVA2SurfaceWrapper *w = opaque; DXVA2Context *ctx = w->ctx; int i; for (i = 0; i < ctx->num_surfaces; i++) { if (ctx->surfaces[i] == w->surface) { ctx->surface_infos[i].used = 0; break; } } IDirect3DSurface9_Release(w->surface); IDirectXVideoDecoder_Release(w->decoder); av_free(w); } static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags) { InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; int i, old_unused = -1; LPDIRECT3DSURFACE9 surface; DXVA2SurfaceWrapper *w = NULL; av_assert0(frame->format == AV_PIX_FMT_DXVA2_VLD); for (i = 0; i < ctx->num_surfaces; i++) { surface_info *info = &ctx->surface_infos[i]; if (!info->used && (old_unused == -1 || info->age < ctx->surface_infos[old_unused].age)) old_unused = i; } if (old_unused == -1) { av_log(NULL, AV_LOG_ERROR, "No free DXVA2 surface!\n"); return AVERROR(ENOMEM); } i = old_unused; surface = ctx->surfaces[i]; w = av_mallocz(sizeof(*w)); if (!w) return AVERROR(ENOMEM); frame->buf[0] = av_buffer_create((uint8_t*)surface, 0, dxva2_release_buffer, w, AV_BUFFER_FLAG_READONLY); if (!frame->buf[0]) { av_free(w); return AVERROR(ENOMEM); } w->ctx = ctx; w->surface = surface; IDirect3DSurface9_AddRef(w->surface); w->decoder = ctx->decoder; IDirectXVideoDecoder_AddRef(w->decoder); ctx->surface_infos[i].used = 1; ctx->surface_infos[i].age = ctx->surface_age++; frame->data[3] = (uint8_t *)surface; return 0; } static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame) { LPDIRECT3DSURFACE9 surface = (LPDIRECT3DSURFACE9)frame->data[3]; InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; D3DSURFACE_DESC surfaceDesc; D3DLOCKED_RECT LockedRect; HRESULT hr; int ret; IDirect3DSurface9_GetDesc(surface, &surfaceDesc); ctx->tmp_frame->width = frame->width; ctx->tmp_frame->height = frame->height; ctx->tmp_frame->format = AV_PIX_FMT_NV12; ret = av_frame_get_buffer(ctx->tmp_frame, 32); if (ret < 0) return ret; hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, D3DLOCK_READONLY); if (FAILED(hr)) { av_log(NULL, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n"); return AVERROR_UNKNOWN; } av_image_copy_plane(ctx->tmp_frame->data[0], ctx->tmp_frame->linesize[0], (uint8_t*)LockedRect.pBits, LockedRect.Pitch, frame->width, frame->height); av_image_copy_plane(ctx->tmp_frame->data[1], ctx->tmp_frame->linesize[1], (uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height, LockedRect.Pitch, frame->width, frame->height / 2); IDirect3DSurface9_UnlockRect(surface); ret = av_frame_copy_props(ctx->tmp_frame, frame); if (ret < 0) goto fail; av_frame_unref(frame); av_frame_move_ref(frame, ctx->tmp_frame); return 0; fail: av_frame_unref(ctx->tmp_frame); return ret; } static int dxva2_alloc(AVCodecContext *s) { InputStream *ist = s->opaque; int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; DXVA2Context *ctx; pDirect3DCreate9 *createD3D = NULL; pCreateDeviceManager9 *createDeviceManager = NULL; HRESULT hr; D3DPRESENT_PARAMETERS d3dpp = {0}; D3DDISPLAYMODE d3ddm; unsigned resetToken = 0; UINT adapter = D3DADAPTER_DEFAULT; ctx = av_mallocz(sizeof(*ctx)); if (!ctx) return AVERROR(ENOMEM); ctx->deviceHandle = INVALID_HANDLE_VALUE; ist->hwaccel_ctx = ctx; ist->hwaccel_uninit = dxva2_uninit; ist->hwaccel_get_buffer = dxva2_get_buffer; ist->hwaccel_retrieve_data = dxva2_retrieve_data; ctx->d3dlib = LoadLibrary("d3d9.dll"); if (!ctx->d3dlib) { av_log(NULL, loglevel, "Failed to load D3D9 library\n"); goto fail; } ctx->dxva2lib = LoadLibrary("dxva2.dll"); if (!ctx->dxva2lib) { av_log(NULL, loglevel, "Failed to load DXVA2 library\n"); goto fail; } createD3D = (pDirect3DCreate9 *)GetProcAddress(ctx->d3dlib, "Direct3DCreate9"); if (!createD3D) { av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n"); goto fail; } createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(ctx->dxva2lib, "DXVA2CreateDirect3DDeviceManager9"); if (!createDeviceManager) { av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n"); goto fail; } ctx->d3d9 = createD3D(D3D_SDK_VERSION); if (!ctx->d3d9) { av_log(NULL, loglevel, "Failed to create IDirect3D object\n"); goto fail; } if (ist->hwaccel_device) { adapter = atoi(ist->hwaccel_device); av_log(NULL, AV_LOG_INFO, "Using HWAccel device %d\n", adapter); } IDirect3D9_GetAdapterDisplayMode(ctx->d3d9, adapter, &d3ddm); d3dpp.Windowed = TRUE; d3dpp.BackBufferWidth = 640; d3dpp.BackBufferHeight = 480; d3dpp.BackBufferCount = 0; d3dpp.BackBufferFormat = d3ddm.Format; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.Flags = D3DPRESENTFLAG_VIDEO; hr = IDirect3D9_CreateDevice(ctx->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(), D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE, &d3dpp, &ctx->d3d9device); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to create Direct3D device\n"); goto fail; } hr = createDeviceManager(&resetToken, &ctx->d3d9devmgr); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to create Direct3D device manager\n"); goto fail; } hr = IDirect3DDeviceManager9_ResetDevice(ctx->d3d9devmgr, ctx->d3d9device, resetToken); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n"); goto fail; } hr = IDirect3DDeviceManager9_OpenDeviceHandle(ctx->d3d9devmgr, &ctx->deviceHandle); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to open device handle\n"); goto fail; } hr = IDirect3DDeviceManager9_GetVideoService(ctx->d3d9devmgr, ctx->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n"); goto fail; } ctx->tmp_frame = av_frame_alloc(); if (!ctx->tmp_frame) goto fail; s->hwaccel_context = av_mallocz(sizeof(struct dxva_context)); if (!s->hwaccel_context) goto fail; return 0; fail: dxva2_uninit(s); return AVERROR(EINVAL); } static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid, const DXVA2_VideoDesc *desc, DXVA2_ConfigPictureDecode *config) { InputStream *ist = s->opaque; int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; DXVA2Context *ctx = ist->hwaccel_ctx; unsigned cfg_count = 0, best_score = 0; DXVA2_ConfigPictureDecode *cfg_list = NULL; DXVA2_ConfigPictureDecode best_cfg = {{0}}; HRESULT hr; int i; hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list); if (FAILED(hr)) { av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n"); return AVERROR(EINVAL); } for (i = 0; i < cfg_count; i++) { DXVA2_ConfigPictureDecode *cfg = &cfg_list[i]; unsigned score; if (cfg->ConfigBitstreamRaw == 1) score = 1; else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2) score = 2; else continue; if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt)) score += 16; if (score > best_score) { best_score = score; best_cfg = *cfg; } } CoTaskMemFree(cfg_list); if (!best_score) { av_log(NULL, loglevel, "No valid decoder configuration available\n"); return AVERROR(EINVAL); } *config = best_cfg; return 0; } static int dxva2_create_decoder(AVCodecContext *s) { InputStream *ist = s->opaque; int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; DXVA2Context *ctx = ist->hwaccel_ctx; struct dxva_context *dxva_ctx = s->hwaccel_context; GUID *guid_list = NULL; unsigned guid_count = 0, i, j; GUID device_guid = GUID_NULL; D3DFORMAT target_format = 0; DXVA2_VideoDesc desc = { 0 }; DXVA2_ConfigPictureDecode config; HRESULT hr; int surface_alignment; int ret; hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n"); goto fail; } for (i = 0; dxva2_modes[i].guid; i++) { D3DFORMAT *target_list = NULL; unsigned target_count = 0; const dxva2_mode *mode = &dxva2_modes[i]; if (mode->codec != s->codec_id) continue; for (j = 0; j < guid_count; j++) { if (IsEqualGUID(mode->guid, &guid_list[j])) break; } if (j == guid_count) continue; hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list); if (FAILED(hr)) { continue; } for (j = 0; j < target_count; j++) { const D3DFORMAT format = target_list[j]; if (format == MKTAG('N','V','1','2')) { target_format = format; break; } } CoTaskMemFree(target_list); if (target_format) { device_guid = *mode->guid; break; } } CoTaskMemFree(guid_list); if (IsEqualGUID(&device_guid, &GUID_NULL)) { av_log(NULL, loglevel, "No decoder device for codec found\n"); goto fail; } desc.SampleWidth = s->coded_width; desc.SampleHeight = s->coded_height; desc.Format = target_format; ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config); if (ret < 0) { goto fail; } /* decoding MPEG-2 requires additional alignment on some Intel GPUs, but it causes issues for H.264 on certain AMD GPUs..... */ if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO) surface_alignment = 32; /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure all coding features have enough room to work with */ else if (s->codec_id == AV_CODEC_ID_HEVC) surface_alignment = 128; else surface_alignment = 16; /* 4 base work surfaces */ ctx->num_surfaces = 4; /* add surfaces based on number of possible refs */ if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC) ctx->num_surfaces += 16; else ctx->num_surfaces += 2; /* add extra surfaces for frame threading */ if (s->active_thread_type & FF_THREAD_FRAME) ctx->num_surfaces += s->thread_count; ctx->surfaces = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surfaces)); ctx->surface_infos = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surface_infos)); if (!ctx->surfaces || !ctx->surface_infos) { av_log(NULL, loglevel, "Unable to allocate surface arrays\n"); goto fail; } hr = IDirectXVideoDecoderService_CreateSurface(ctx->decoder_service, FFALIGN(s->coded_width, surface_alignment), FFALIGN(s->coded_height, surface_alignment), ctx->num_surfaces - 1, target_format, D3DPOOL_DEFAULT, 0, DXVA2_VideoDecoderRenderTarget, ctx->surfaces, NULL); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to create %d video surfaces\n", ctx->num_surfaces); goto fail; } hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid, &desc, &config, ctx->surfaces, ctx->num_surfaces, &ctx->decoder); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n"); goto fail; } ctx->decoder_guid = device_guid; ctx->decoder_config = config; dxva_ctx->cfg = &ctx->decoder_config; dxva_ctx->decoder = ctx->decoder; dxva_ctx->surface = ctx->surfaces; dxva_ctx->surface_count = ctx->num_surfaces; if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E)) dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO; return 0; fail: dxva2_destroy_decoder(s); return AVERROR(EINVAL); } int dxva2_init(AVCodecContext *s) { InputStream *ist = s->opaque; int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; DXVA2Context *ctx; int ret; if (!ist->hwaccel_ctx) { ret = dxva2_alloc(s); if (ret < 0) return ret; } ctx = ist->hwaccel_ctx; if (s->codec_id == AV_CODEC_ID_H264 && (s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) { av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile); return AVERROR(EINVAL); } if (ctx->decoder) dxva2_destroy_decoder(s); ret = dxva2_create_decoder(s); if (ret < 0) { av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n"); return ret; } return 0; }