/* * 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" #include "libavutil/hwcontext.h" #include "libavutil/hwcontext_dxva2.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_ModeHEVC_VLD_Main10,0x107af0e0, 0xef1a,0x4d19,0xab,0xa8,0x67,0xa1,0x63,0x07,0x3d,0x13); DEFINE_GUID(DXVA2_ModeVP9_VLD_Profile0, 0x463707f8, 0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e); 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 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 }, { &DXVA2_ModeHEVC_VLD_Main10,AV_CODEC_ID_HEVC }, /* VP8/9 */ { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 }, { NULL, 0 }, }; typedef struct DXVA2Context { IDirectXVideoDecoder *decoder; GUID decoder_guid; DXVA2_ConfigPictureDecode decoder_config; IDirectXVideoDecoderService *decoder_service; AVFrame *tmp_frame; AVBufferRef *hw_device_ctx; AVBufferRef *hw_frames_ctx; } DXVA2Context; 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_service) IDirectXVideoDecoderService_Release(ctx->decoder_service); av_buffer_unref(&ctx->hw_frames_ctx); av_buffer_unref(&ctx->hw_device_ctx); av_frame_free(&ctx->tmp_frame); av_freep(&ist->hwaccel_ctx); av_freep(&s->hwaccel_context); } static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags) { InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0); } static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame) { InputStream *ist = s->opaque; DXVA2Context *ctx = ist->hwaccel_ctx; int ret; ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0); if (ret < 0) return ret; ret = av_frame_copy_props(ctx->tmp_frame, frame); if (ret < 0) { av_frame_unref(ctx->tmp_frame); return ret; } av_frame_unref(frame); av_frame_move_ref(frame, ctx->tmp_frame); return 0; } 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; HANDLE device_handle; HRESULT hr; AVHWDeviceContext *device_ctx; AVDXVA2DeviceContext *device_hwctx; int ret; ctx = av_mallocz(sizeof(*ctx)); if (!ctx) return AVERROR(ENOMEM); ist->hwaccel_ctx = ctx; ist->hwaccel_uninit = dxva2_uninit; ist->hwaccel_get_buffer = dxva2_get_buffer; ist->hwaccel_retrieve_data = dxva2_retrieve_data; ret = av_hwdevice_ctx_create(&ctx->hw_device_ctx, AV_HWDEVICE_TYPE_DXVA2, ist->hwaccel_device, NULL, 0); if (ret < 0) goto fail; device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data; device_hwctx = device_ctx->hwctx; hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &device_handle); if (FAILED(hr)) { av_log(NULL, loglevel, "Failed to open a device handle\n"); goto fail; } hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_handle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service); IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, device_handle); 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; const D3DFORMAT surface_format = (s->sw_pix_fmt == AV_PIX_FMT_YUV420P10) ? MKTAG('P','0','1','0') : MKTAG('N','V','1','2'); D3DFORMAT target_format = 0; DXVA2_VideoDesc desc = { 0 }; DXVA2_ConfigPictureDecode config; HRESULT hr; int surface_alignment, num_surfaces; int ret; AVDXVA2FramesContext *frames_hwctx; AVHWFramesContext *frames_ctx; 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 == surface_format) { 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 */ 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) num_surfaces += 16; else if (s->codec_id == AV_CODEC_ID_VP9) num_surfaces += 8; else num_surfaces += 2; /* add extra surfaces for frame threading */ if (s->active_thread_type & FF_THREAD_FRAME) num_surfaces += s->thread_count; ctx->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->hw_device_ctx); if (!ctx->hw_frames_ctx) goto fail; frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data; frames_hwctx = frames_ctx->hwctx; frames_ctx->format = AV_PIX_FMT_DXVA2_VLD; frames_ctx->sw_format = (target_format == MKTAG('P','0','1','0') ? AV_PIX_FMT_P010 : AV_PIX_FMT_NV12); frames_ctx->width = FFALIGN(s->coded_width, surface_alignment); frames_ctx->height = FFALIGN(s->coded_height, surface_alignment); frames_ctx->initial_pool_size = num_surfaces; frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget; ret = av_hwframe_ctx_init(ctx->hw_frames_ctx); if (ret < 0) { av_log(NULL, loglevel, "Failed to initialize the HW frames context\n"); goto fail; } hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid, &desc, &config, frames_hwctx->surfaces, frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release); 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 = frames_hwctx->decoder_to_release; dxva_ctx->surface = frames_hwctx->surfaces; dxva_ctx->surface_count = frames_hwctx->nb_surfaces; if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E)) dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO; return 0; fail: av_buffer_unref(&ctx->hw_frames_ctx); 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 (s->codec_id == AV_CODEC_ID_HEVC && s->profile != FF_PROFILE_HEVC_MAIN && s->profile != FF_PROFILE_HEVC_MAIN_10) { av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile); return AVERROR(EINVAL); } av_buffer_unref(&ctx->hw_frames_ctx); ret = dxva2_create_decoder(s); if (ret < 0) { av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n"); return ret; } return 0; }