diff options
Diffstat (limited to 'ffmpeg_dxva2.c')
| -rw-r--r-- | ffmpeg_dxva2.c | 562 |
1 files changed, 562 insertions, 0 deletions
diff --git a/ffmpeg_dxva2.c b/ffmpeg_dxva2.c new file mode 100644 index 0000000000..41ee1b6bef --- /dev/null +++ b/ffmpeg_dxva2.c @@ -0,0 +1,562 @@ +/* + * 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 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 }, + { &DXVA2_ModeHEVC_VLD_Main10,AV_CODEC_ID_HEVC }, + + /* VP8/9 */ + { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 }, + + { NULL, 0 }, +}; + +typedef struct DXVA2DevicePriv { + HMODULE d3dlib; + HMODULE dxva2lib; + + HANDLE deviceHandle; + + IDirect3D9 *d3d9; + IDirect3DDevice9 *d3d9device; +} DXVA2DevicePriv; + +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_device_uninit(AVHWDeviceContext *ctx) +{ + AVDXVA2DeviceContext *hwctx = ctx->hwctx; + DXVA2DevicePriv *priv = ctx->user_opaque; + + if (hwctx->devmgr && priv->deviceHandle != INVALID_HANDLE_VALUE) + IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->deviceHandle); + + if (hwctx->devmgr) + IDirect3DDeviceManager9_Release(hwctx->devmgr); + + if (priv->d3d9device) + IDirect3DDevice9_Release(priv->d3d9device); + + if (priv->d3d9) + IDirect3D9_Release(priv->d3d9); + + if (priv->d3dlib) + FreeLibrary(priv->d3dlib); + + if (priv->dxva2lib) + FreeLibrary(priv->dxva2lib); + + av_freep(&ctx->user_opaque); +} + +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; + pDirect3DCreate9 *createD3D = NULL; + pCreateDeviceManager9 *createDeviceManager = NULL; + HRESULT hr; + D3DPRESENT_PARAMETERS d3dpp = {0}; + D3DDISPLAYMODE d3ddm; + unsigned resetToken = 0; + UINT adapter = D3DADAPTER_DEFAULT; + + AVHWDeviceContext *device_ctx; + AVDXVA2DeviceContext *device_hwctx; + DXVA2DevicePriv *device_priv; + 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; + + ctx->hw_device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DXVA2); + if (!ctx->hw_device_ctx) + goto fail; + + device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data; + device_hwctx = device_ctx->hwctx; + + device_priv = av_mallocz(sizeof(*device_priv)); + if (!device_priv) + goto fail; + + device_ctx->user_opaque = device_priv; + device_ctx->free = dxva2_device_uninit; + + device_priv->deviceHandle = INVALID_HANDLE_VALUE; + + device_priv->d3dlib = LoadLibrary("d3d9.dll"); + if (!device_priv->d3dlib) { + av_log(NULL, loglevel, "Failed to load D3D9 library\n"); + goto fail; + } + device_priv->dxva2lib = LoadLibrary("dxva2.dll"); + if (!device_priv->dxva2lib) { + av_log(NULL, loglevel, "Failed to load DXVA2 library\n"); + goto fail; + } + + createD3D = (pDirect3DCreate9 *)GetProcAddress(device_priv->d3dlib, "Direct3DCreate9"); + if (!createD3D) { + av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n"); + goto fail; + } + createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(device_priv->dxva2lib, "DXVA2CreateDirect3DDeviceManager9"); + if (!createDeviceManager) { + av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n"); + goto fail; + } + + device_priv->d3d9 = createD3D(D3D_SDK_VERSION); + if (!device_priv->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(device_priv->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(device_priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(), + D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE, + &d3dpp, &device_priv->d3d9device); + if (FAILED(hr)) { + av_log(NULL, loglevel, "Failed to create Direct3D device\n"); + goto fail; + } + + hr = createDeviceManager(&resetToken, &device_hwctx->devmgr); + if (FAILED(hr)) { + av_log(NULL, loglevel, "Failed to create Direct3D device manager\n"); + goto fail; + } + + hr = IDirect3DDeviceManager9_ResetDevice(device_hwctx->devmgr, device_priv->d3d9device, resetToken); + if (FAILED(hr)) { + av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n"); + goto fail; + } + + hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &device_priv->deviceHandle); + if (FAILED(hr)) { + av_log(NULL, loglevel, "Failed to open device handle\n"); + goto fail; + } + + hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_priv->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service); + if (FAILED(hr)) { + av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n"); + goto fail; + } + + ret = av_hwdevice_ctx_init(ctx->hw_device_ctx); + if (ret < 0) { + av_log(NULL, loglevel, "Failed to initialize the HW device context\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; +} |