ffmpeg实现dxva2硬件加速

/* * 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 "stdafx.h" #include <d3d9.h> #include <dxva2api.h> #include "ffmpeg_dxva2.h" extern "C" { #include "libavcodec/dxva2.h" #include "libavutil/avassert.h" #include "libavutil/buffer.h" #include "libavutil/frame.h" #include "libavutil/imgutils.h" #include "libavutil/pixfmt.h" } typedef struct { const char *name; D3DFORMAT format; AVPixelFormat codec; } d3d_format_t; /* XXX Prefered format must come first */ static const d3d_format_t d3d_formats[] = { { "YV12", (D3DFORMAT)MAKEFOURCC('Y', 'V', '1', '2'), AV_PIX_FMT_YUV420P }, { "NV12", (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2'), AV_PIX_FMT_NV12 }, { NULL, (D3DFORMAT)0, AV_PIX_FMT_NONE } }; /* 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 IDirect3D9* WINAPI pDirect3DCreate9(UINT); typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **); CRITICAL_SECTION cs; 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, AV_CODEC_ID_NONE }, }; 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 = (InputStream *)s->opaque; DXVA2Context *ctx = (DXVA2Context *)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->Release(); ctx->decoder = NULL; } } static void dxva2_uninit(AVCodecContext *s) { InputStream *ist = (InputStream *)s->opaque; DXVA2Context *ctx = (DXVA2Context *)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); ctx->decoder_service->Release(); if (ctx->d3d9devmgr && ctx->deviceHandle != INVALID_HANDLE_VALUE) //IDirect3DDeviceManager9_CloseDeviceHandle(ctx->d3d9devmgr, ctx->deviceHandle); ctx->d3d9devmgr->CloseDeviceHandle(ctx->deviceHandle); if (ctx->d3d9devmgr) //IDirect3DDeviceManager9_Release(ctx->d3d9devmgr); ctx->d3d9devmgr->Release(); 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); DeleteCriticalSection(&cs); } static void dxva2_release_buffer(void *opaque, uint8_t *data) { DXVA2SurfaceWrapper *w = (DXVA2SurfaceWrapper *)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); w->decoder->Release(); av_free(w); } static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags) { InputStream *ist = (InputStream *)s->opaque; DXVA2Context *ctx = (DXVA2Context *)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_un