Esempio n. 1
0
bool DXVA2Decoder::CreateVideoService(MythRenderD3D9* render)
{
    // Loads the DXVA2 library
    DXVA2CreateVideoServicePtr create_video_service =
        (DXVA2CreateVideoServicePtr)MythRenderD3D9::ResolveAddress("DXVA2", "DXVA2CreateVideoService");
    if (!create_video_service)
        return false;

    m_deviceManager = render->GetDeviceManager();
    if (!m_deviceManager)
    {
        LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to get device manager.");
        return false;
    }

    HRESULT hr = IDirect3DDeviceManager9_OpenDeviceHandle(m_deviceManager, &m_device);
    if (FAILED(hr))
    {
        LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to get device handle.");
        return false;
    }

    hr = IDirect3DDeviceManager9_GetVideoService(m_deviceManager,
                                                 m_device,
                                                 IID_IDirectXVideoDecoderService,
                                                 (void**)&m_service);
    if (FAILED(hr))
    {
        LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to get video service.");
        return false;
    }

    LOG(VB_PLAYBACK, LOG_INFO, LOC + "Created DXVA2 video service.");
    return true;
}
Esempio n. 2
0
/**
 * It creates a DirectX video service
 */
static int hb_dx_create_video_service( hb_va_dxva2_t *dxva2 )
{
    HRESULT (WINAPI *CreateVideoService)( IDirect3DDevice9 *, REFIID riid, void **ppService );
    CreateVideoService = (void*)GetProcAddress( dxva2->hdxva2_dll, TEXT( "DXVA2CreateVideoService" ));

    if( !CreateVideoService )
    {
        hb_log( "dxva2:cannot load function" );
        return HB_WORK_ERROR;
    }

    HRESULT hr;

    HANDLE device;
    hr = IDirect3DDeviceManager9_OpenDeviceHandle( dxva2->devmng, &device );
    if( FAILED( hr ))
    {
        hb_log( "dxva2:OpenDeviceHandle failed" );
        return HB_WORK_ERROR;
    }
    dxva2->device = device;

    IDirectXVideoDecoderService *vs;
    hr = IDirect3DDeviceManager9_GetVideoService( dxva2->devmng, device, &IID_IDirectXVideoDecoderService, (void*)&vs );
    if( FAILED( hr ))
    {
        hb_log( "dxva2:GetVideoService failed" );
        return HB_WORK_ERROR;
    }
    dxva2->vs = vs;

    return HB_WORK_OK;
}
Esempio n. 3
0
File: dxva2.c Progetto: tguillem/vlc
/**
 * It creates a DirectX video service
 */
static int DxCreateVideoService(vlc_va_t *va)
{
    vlc_va_sys_t *sys = va->sys;
    directx_sys_t *dx_sys = &va->sys->dx_sys;
    HRESULT hr;

    HANDLE device;
    hr = IDirect3DDeviceManager9_OpenDeviceHandle(sys->devmng, &device);
    if (FAILED(hr)) {
        msg_Err(va, "OpenDeviceHandle failed");
        return VLC_EGENERIC;
    }
    sys->device = device;

    void *pv;
    hr = IDirect3DDeviceManager9_GetVideoService(sys->devmng, device,
                                        &IID_IDirectXVideoDecoderService, &pv);
    if (FAILED(hr)) {
        msg_Err(va, "GetVideoService failed");
        return VLC_EGENERIC;
    }
    dx_sys->d3ddec = pv;

    return VLC_SUCCESS;
}
Esempio n. 4
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);
}
Esempio n. 5
0
File: dxva2.c Progetto: joshkosh/vlc
/**
 * It creates a DirectX video service
 */
static int DxCreateVideoService(vlc_va_t *va)
{
    vlc_va_sys_t *sys = va->sys;
    directx_sys_t *dx_sys = &va->sys->dx_sys;

    HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
                                         REFIID riid,
                                         void **ppService);
    CreateVideoService =
        (void *)GetProcAddress(dx_sys->hdecoder_dll, "DXVA2CreateVideoService");

    if (!CreateVideoService) {
        msg_Err(va, "cannot load function");
        return 4;
    }
    msg_Info(va, "DXVA2CreateVideoService Success!");

    HRESULT hr;

    HANDLE device;
    hr = IDirect3DDeviceManager9_OpenDeviceHandle(sys->devmng, &device);
    if (FAILED(hr)) {
        msg_Err(va, "OpenDeviceHandle failed");
        return VLC_EGENERIC;
    }
    sys->device = device;

    void *pv;
    hr = IDirect3DDeviceManager9_GetVideoService(sys->devmng, device,
            &IID_IDirectXVideoDecoderService, &pv);
    if (FAILED(hr)) {
        msg_Err(va, "GetVideoService failed");
        return VLC_EGENERIC;
    }
    dx_sys->d3ddec = pv;

    return VLC_SUCCESS;
}
Esempio n. 6
0
/**
 * It creates a DirectX video service
 */
static int DxCreateVideoService(vlc_va_dxva2_t *va)
{
    HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
                                         REFIID riid,
                                         void **ppService);
    CreateVideoService =
      (void *)GetProcAddress(va->hdxva2_dll,
                             "DXVA2CreateVideoService");

    if (!CreateVideoService) {
        msg_Err(va->log, "cannot load function");
        return 4;
    }
    msg_Info(va->log, "DXVA2CreateVideoService Success!");

    HRESULT hr;

    HANDLE device;
    hr = IDirect3DDeviceManager9_OpenDeviceHandle(va->devmng, &device);
    if (FAILED(hr)) {
        msg_Err(va->log, "OpenDeviceHandle failed");
        return VLC_EGENERIC;
    }
    va->device = device;

    IDirectXVideoDecoderService *vs;
    hr = IDirect3DDeviceManager9_GetVideoService(va->devmng, device,
                                                 &IID_IDirectXVideoDecoderService,
                                                 (void**)&vs);
    if (FAILED(hr)) {
        msg_Err(va->log, "GetVideoService failed");
        return VLC_EGENERIC;
    }
    va->vs = vs;

    return VLC_SUCCESS;
}
Esempio n. 7
0
static int dxva2_init_pool(AVHWFramesContext *ctx)
{
    AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
    AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
    DXVA2FramesContext              *s = ctx->internal->priv;
    int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);

    int i;
    HRESULT hr;

    if (ctx->initial_pool_size <= 0)
        return 0;

    hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
        return AVERROR_UNKNOWN;
    }

    hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
                                                 s->device_handle,
                                                 decode ? &video_decoder_service : &video_processor_service,
                                                 (void **)&s->service);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
        return AVERROR_UNKNOWN;
    }

    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
        if (ctx->sw_format == supported_formats[i].pix_fmt) {
            s->format = supported_formats[i].d3d_format;
            break;
        }
    }
    if (i == FF_ARRAY_ELEMS(supported_formats)) {
        av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
               av_get_pix_fmt_name(ctx->sw_format));
        return AVERROR(EINVAL);
    }

    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
                                            sizeof(*s->surfaces_internal));
    if (!s->surfaces_internal)
        return AVERROR(ENOMEM);

    hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
                                                        ctx->width, ctx->height,
                                                        ctx->initial_pool_size - 1,
                                                        s->format, D3DPOOL_DEFAULT, 0,
                                                        frames_hwctx->surface_type,
                                                        s->surfaces_internal, NULL);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
        return AVERROR_UNKNOWN;
    }

    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
                                                        ctx, dxva2_pool_alloc, NULL);
    if (!ctx->internal->pool_internal)
        return AVERROR(ENOMEM);

    frames_hwctx->surfaces    = s->surfaces_internal;
    frames_hwctx->nb_surfaces = ctx->initial_pool_size;

    return 0;
}
Esempio n. 8
0
static int dxva2_alloc(AVCodecContext *s)
{
    HwAccelContext  *hac = s->opaque;
    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;

    hac->hwaccel_ctx           = ctx;
    hac->hwaccel_uninit        = dxva2_uninit;
    hac->hwaccel_get_buffer    = dxva2_get_buffer;
    hac->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 (hac->hwaccel_device) {
        adapter = atoi(hac->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, GetShellWindow(),
                                 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);
}
Esempio n. 9
0
static int dxva2_init(struct lavc_ctx *s)
{
    DXVA2Context *ctx;
    pCreateDeviceManager9 *createDeviceManager = NULL;
    HRESULT hr;
    unsigned resetToken = 0;

    ctx = talloc_zero(NULL, DXVA2Context);
    if (!ctx)
        return -1;
    s->hwdec_priv = ctx;

    ctx->log = mp_log_new(s, s->log, "dxva2");
    ctx->sw_pool = talloc_steal(ctx, mp_image_pool_new(17));

    mp_check_gpu_memcpy(ctx->log, NULL);

    ctx->deviceHandle = INVALID_HANDLE_VALUE;

    ctx->dxva2lib = LoadLibrary(L"dxva2.dll");
    if (!ctx->dxva2lib) {
        MP_ERR(ctx, "Failed to load DXVA2 library\n");
        goto fail;
    }

    if (create_device(s) < 0)
        goto fail;

    createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(ctx->dxva2lib, "DXVA2CreateDirect3DDeviceManager9");
    if (!createDeviceManager) {
        MP_ERR(ctx, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
        goto fail;
    }

    hr = createDeviceManager(&resetToken, &ctx->d3d9devmgr);
    if (FAILED(hr)) {
        MP_ERR(ctx, "Failed to create Direct3D device manager\n");
        goto fail;
    }

    hr = IDirect3DDeviceManager9_ResetDevice(ctx->d3d9devmgr, ctx->d3d9device, resetToken);
    if (FAILED(hr)) {
        MP_ERR(ctx, "Failed to bind Direct3D device to device manager\n");
        goto fail;
    }

    hr = IDirect3DDeviceManager9_OpenDeviceHandle(ctx->d3d9devmgr, &ctx->deviceHandle);
    if (FAILED(hr)) {
        MP_ERR(ctx, "Failed to open device handle\n");
        goto fail;
    }

    hr = IDirect3DDeviceManager9_GetVideoService(ctx->d3d9devmgr, ctx->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
    if (FAILED(hr)) {
        MP_ERR(ctx, "Failed to create IDirectXVideoDecoderService\n");
        goto fail;
    }

    s->avctx->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
    if (!s->avctx->hwaccel_context)
        goto fail;

    return 0;
fail:
    dxva2_uninit(s);
    return -1;
}
Esempio n. 10
0
static int dxva2_init_decoder(struct lavc_ctx *s, int w, int h)
{
    HRESULT hr;
    int ret = -1;
    struct priv *p = s->hwdec_priv;
    TA_FREEP(&p->decoder_pool);

    int  n_surfaces = hwdec_get_max_refs(s) + ADDITIONAL_SURFACES;
    IDirect3DSurface9    **surfaces = NULL;
    IDirectXVideoDecoder  *decoder  = NULL;
    void                  *tmp      = talloc_new(NULL);

    UINT n_guids;
    GUID *device_guids;
    hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(
        p->decoder_service, &n_guids, &device_guids);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to retrieve decoder device GUIDs: %s\n",
               mp_HRESULT_to_str(hr));
        goto done;
    }

    dump_decoder_info(s, device_guids, n_guids);

    struct d3d_decoder_fmt fmt =
        d3d_select_decoder_mode(s, device_guids, n_guids,
                                d3d9_formats, MP_ARRAY_SIZE(d3d9_formats),
                                dxva2_format_supported);
    CoTaskMemFree(device_guids);
    if (!fmt.format) {
        MP_ERR(p, "Failed to find a suitable decoder\n");
        goto done;
    }

    p->mpfmt_decoded = fmt.format->mpfmt;
    struct mp_image_pool *decoder_pool =
        talloc_steal(tmp, mp_image_pool_new(n_surfaces));
    DXVA2_ConfigPictureDecode *decoder_config =
        talloc_zero(decoder_pool, DXVA2_ConfigPictureDecode);

    int w_align = w, h_align = h;
    d3d_surface_align(s, &w_align, &h_align);
    DXVA2_VideoDesc video_desc ={
        .SampleWidth  = w,
        .SampleHeight = h,
        .Format       = fmt.format->dxfmt,
    };
    UINT                     n_configs  = 0;
    DXVA2_ConfigPictureDecode *configs = NULL;
    hr = IDirectXVideoDecoderService_GetDecoderConfigurations(
        p->decoder_service, fmt.guid, &video_desc, NULL,
        &n_configs, &configs);
    if (FAILED(hr)) {
        MP_ERR(p, "Unable to retrieve decoder configurations: %s\n",
               mp_HRESULT_to_str(hr));
        goto done;
    }

    unsigned max_score = 0;
    for (UINT i = 0; i < n_configs; i++) {
        unsigned score = d3d_decoder_config_score(
            s, &configs[i].guidConfigBitstreamEncryption,
            configs[i].ConfigBitstreamRaw);
        if (score > max_score) {
            max_score       = score;
            *decoder_config = configs[i];
        }
    }
    CoTaskMemFree(configs);
    if (!max_score) {
        MP_ERR(p, "Failed to find a suitable decoder configuration\n");
        goto done;
    }

    surfaces = talloc_zero_array(decoder_pool, IDirect3DSurface9*, n_surfaces);
    hr = IDirectXVideoDecoderService_CreateSurface(
        p->decoder_service,
        w_align, h_align,
        n_surfaces - 1, fmt.format->dxfmt, D3DPOOL_DEFAULT, 0,
        DXVA2_VideoDecoderRenderTarget, surfaces, NULL);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create %d video surfaces: %s\n",
               n_surfaces, mp_HRESULT_to_str(hr));
        goto done;
    }

    hr = IDirectXVideoDecoderService_CreateVideoDecoder(
        p->decoder_service, fmt.guid, &video_desc, decoder_config,
        surfaces, n_surfaces, &decoder);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create DXVA2 video decoder: %s\n",
               mp_HRESULT_to_str(hr));
        goto done;
    }

    for (int i = 0; i < n_surfaces; i++) {
        struct mp_image *img = dxva2_new_ref(decoder, surfaces[i], w, h);
        if (!img) {
            MP_ERR(p, "Failed to create DXVA2 image\n");
            goto done;
        }
        mp_image_pool_add(decoder_pool, img); // transferred to pool
    }

    // Pass required information on to ffmpeg.
    struct dxva_context *dxva_ctx = s->avctx->hwaccel_context;
    dxva_ctx->cfg           = decoder_config;
    dxva_ctx->decoder       = decoder;
    dxva_ctx->surface_count = n_surfaces;
    dxva_ctx->surface       = surfaces;
    dxva_ctx->workaround    = is_clearvideo(fmt.guid) ?
                              FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO : 0;

    p->decoder_pool = talloc_steal(NULL, decoder_pool);
    ret = 0;
done:
    // On success, `p->decoder_pool` mp_images still hold refs to `surfaces` and
    // `decoder`, so the pointers in the ffmpeg `dxva_context` strcture remain
    // valid for the lifetime of the pool.
    if (surfaces) {
        for (int i = 0; i < n_surfaces; i++)
            IDirect3DSurface9_Release(surfaces[i]);
    }
    if (decoder)
        IDirectXVideoDecoder_Release(decoder);

    talloc_free(tmp);
    return ret;
}

static void destroy_device(struct lavc_ctx *s)
{
    struct priv *p = s->hwdec_priv;

    if (p->device)
        IDirect3DDevice9_Release(p->device);

    if (p->d3d9)
        IDirect3D9_Release(p->d3d9);
}

static bool create_device(struct lavc_ctx *s)
{
    struct priv *p = s->hwdec_priv;

    d3d_load_dlls();
    if (!d3d9_dll) {
        MP_ERR(p, "Failed to load D3D9 library\n");
        return false;
    }

    HRESULT (WINAPI *Direct3DCreate9Ex)(UINT, IDirect3D9Ex **) =
        (void *)GetProcAddress(d3d9_dll, "Direct3DCreate9Ex");
    if (!Direct3DCreate9Ex) {
        MP_ERR(p, "Failed to locate Direct3DCreate9Ex\n");
        return false;
    }

    IDirect3D9Ex *d3d9ex = NULL;
    HRESULT hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &d3d9ex);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create IDirect3D9Ex object\n");
        return false;
    }

    UINT adapter = D3DADAPTER_DEFAULT;
    D3DDISPLAYMODEEX modeex = {0};
    IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);

    D3DPRESENT_PARAMETERS present_params = {
        .Windowed         = TRUE,
        .BackBufferWidth  = 640,
        .BackBufferHeight = 480,
        .BackBufferCount  = 0,
        .BackBufferFormat = modeex.Format,
        .SwapEffect       = D3DSWAPEFFECT_DISCARD,
        .Flags            = D3DPRESENTFLAG_VIDEO,
    };

    IDirect3DDevice9Ex *exdev = NULL;
    hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter,
                                     D3DDEVTYPE_HAL,
                                     GetShellWindow(),
                                     D3DCREATE_SOFTWARE_VERTEXPROCESSING |
                                     D3DCREATE_MULTITHREADED |
                                     D3DCREATE_FPU_PRESERVE,
                                     &present_params,
                                     NULL,
                                     &exdev);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create Direct3D device: %s\n",
               mp_HRESULT_to_str(hr));
        IDirect3D9_Release(d3d9ex);
        return false;
    }

    p->d3d9 = (IDirect3D9 *)d3d9ex;
    p->device = (IDirect3DDevice9 *)exdev;
    return true;
}

static void dxva2_uninit(struct lavc_ctx *s)
{
    struct priv *p = s->hwdec_priv;
    if (!p)
        return;

    av_freep(&s->avctx->hwaccel_context);
    talloc_free(p->decoder_pool);

    if (p->decoder_service)
        IDirectXVideoDecoderService_Release(p->decoder_service);

    if (p->device_manager && p->device_handle != INVALID_HANDLE_VALUE)
        IDirect3DDeviceManager9_CloseDeviceHandle(p->device_manager, p->device_handle);

    if (p->device_manager)
        IDirect3DDeviceManager9_Release(p->device_manager);

    destroy_device(s);

    TA_FREEP(&s->hwdec_priv);
}

static int dxva2_init(struct lavc_ctx *s)
{
    HRESULT hr;
    struct priv *p = talloc_zero(NULL, struct priv);
    if (!p)
        return -1;

    s->hwdec_priv = p;
    p->device_handle = INVALID_HANDLE_VALUE;
    p->log           = mp_log_new(s, s->log, "dxva2");

    if (s->hwdec->type == HWDEC_DXVA2_COPY) {
        mp_check_gpu_memcpy(p->log, NULL);
        p->sw_pool = talloc_steal(p, mp_image_pool_new(17));
    }

    p->device = hwdec_devices_load(s->hwdec_devs, s->hwdec->type);
    if (p->device) {
        IDirect3D9_AddRef(p->device);
        MP_VERBOSE(p, "Using VO-supplied device %p.\n", p->device);
    } else if (s->hwdec->type == HWDEC_DXVA2) {
        MP_ERR(p, "No Direct3D device provided for native dxva2 decoding\n");
        goto fail;
    } else {
        if (!create_device(s))
            goto fail;
    }

    d3d_load_dlls();
    if (!dxva2_dll) {
        MP_ERR(p, "Failed to load DXVA2 library\n");
        goto fail;
    }

    HRESULT (WINAPI *CreateDeviceManager9)(UINT *, IDirect3DDeviceManager9 **) =
        (void *)GetProcAddress(dxva2_dll, "DXVA2CreateDirect3DDeviceManager9");
    if (!CreateDeviceManager9) {
        MP_ERR(p, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
        goto fail;
    }

    unsigned reset_token = 0;
    hr = CreateDeviceManager9(&reset_token, &p->device_manager);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create Direct3D device manager: %s\n",
               mp_HRESULT_to_str(hr));
        goto fail;
    }

    hr = IDirect3DDeviceManager9_ResetDevice(p->device_manager,
                                             p->device, reset_token);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to bind Direct3D device to device manager: %s\n",
               mp_HRESULT_to_str(hr));
        goto fail;
    }

    hr = IDirect3DDeviceManager9_OpenDeviceHandle(p->device_manager,
                                                  &p->device_handle);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to open device handle: %s\n",
               mp_HRESULT_to_str(hr));
        goto fail;
    }

    hr = IDirect3DDeviceManager9_GetVideoService(
        p->device_manager, p->device_handle, &IID_IDirectXVideoDecoderService,
        (void **)&p->decoder_service);
    if (FAILED(hr)) {
        MP_ERR(p, "Failed to create IDirectXVideoDecoderService: %s\n",
               mp_HRESULT_to_str(hr));
        goto fail;
    }

    s->avctx->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
    if (!s->avctx->hwaccel_context)
        goto fail;

    return 0;
fail:
    dxva2_uninit(s);
    return -1;
}

static int dxva2_probe(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
                       const char *codec)
{
    // dxva2-copy can do without external context; dxva2 requires it.
    if (hwdec->type == HWDEC_DXVA2) {
        if (!hwdec_devices_load(ctx->hwdec_devs, HWDEC_DXVA2))
            return HWDEC_ERR_NO_CTX;
    } else {
        hwdec_devices_load(ctx->hwdec_devs, HWDEC_DXVA2_COPY);
    }
    return d3d_probe_codec(codec);
}

const struct vd_lavc_hwdec mp_vd_lavc_dxva2 = {
    .type           = HWDEC_DXVA2,
    .image_format   = IMGFMT_DXVA2,
    .probe          = dxva2_probe,
    .init           = dxva2_init,
    .uninit         = dxva2_uninit,
    .init_decoder   = dxva2_init_decoder,
    .allocate_image = dxva2_allocate_image,
};

const struct vd_lavc_hwdec mp_vd_lavc_dxva2_copy = {
    .type           = HWDEC_DXVA2_COPY,
    .copying        = true,
    .image_format   = IMGFMT_DXVA2,
    .probe          = dxva2_probe,
    .init           = dxva2_init,
    .uninit         = dxva2_uninit,
    .init_decoder   = dxva2_init_decoder,
    .allocate_image = dxva2_allocate_image,
    .process_image  = dxva2_retrieve_image,
    .delay_queue    = HWDEC_DELAY_QUEUE_COUNT,
};