diff options
Diffstat (limited to 'libavutil/hwcontext_vaapi.c')
| -rw-r--r-- | libavutil/hwcontext_vaapi.c | 78 |
1 files changed, 76 insertions, 2 deletions
diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c index 90c2c191d9..6c3a227ddd 100644 --- a/libavutil/hwcontext_vaapi.c +++ b/libavutil/hwcontext_vaapi.c @@ -18,6 +18,15 @@ #include "config.h" +#if HAVE_VAAPI_WIN32 +# include <windows.h> +#define COBJMACROS +# include <initguid.h> +# include <dxgi1_2.h> +# include "compat/w32dlfcn.h" +# include <va/va_win32.h> +typedef HRESULT (WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory); +#endif #if HAVE_VAAPI_X11 # include <va/va_x11.h> #endif @@ -1663,7 +1672,7 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device, VAAPIDevicePriv *priv; VADisplay display = NULL; const AVDictionaryEntry *ent; - int try_drm, try_x11, try_all; + int try_drm, try_x11, try_win32, try_all; priv = av_mallocz(sizeof(*priv)); if (!priv) @@ -1676,11 +1685,13 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device, ent = av_dict_get(opts, "connection_type", NULL, 0); if (ent) { - try_all = try_drm = try_x11 = 0; + try_all = try_drm = try_x11 = try_win32 = 0; if (!strcmp(ent->value, "drm")) { try_drm = 1; } else if (!strcmp(ent->value, "x11")) { try_x11 = 1; + } else if (!strcmp(ent->value, "win32")) { + try_win32 = 1; } else { av_log(ctx, AV_LOG_ERROR, "Invalid connection type %s.\n", ent->value); @@ -1690,6 +1701,7 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device, try_all = 1; try_drm = HAVE_VAAPI_DRM; try_x11 = HAVE_VAAPI_X11; + try_win32 = HAVE_VAAPI_WIN32; } #if HAVE_VAAPI_DRM @@ -1797,6 +1809,68 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device, } #endif +#if HAVE_VAAPI_WIN32 + if (!display && try_win32) { + // Try to create a display from the specified device, if any. + if (!device) { + display = vaGetDisplayWin32(NULL); + } else { + IDXGIFactory2 *pDXGIFactory = NULL; + IDXGIAdapter *pAdapter = NULL; +#if !HAVE_UWP + HANDLE dxgi = dlopen("dxgi.dll", 0); + if (!dxgi) { + av_log(ctx, AV_LOG_ERROR, "Failed to load dxgi.dll\n"); + return AVERROR_UNKNOWN; + } + PFN_CREATE_DXGI_FACTORY pfnCreateDXGIFactory = + (PFN_CREATE_DXGI_FACTORY)dlsym(dxgi, "CreateDXGIFactory"); + if (!pfnCreateDXGIFactory) { + av_log(ctx, AV_LOG_ERROR, "CreateDXGIFactory load failed\n"); + dlclose(dxgi); + return AVERROR_UNKNOWN; + } +#else + // In UWP (which lacks LoadLibrary), CreateDXGIFactory isn't + // available, only CreateDXGIFactory1 + PFN_CREATE_DXGI_FACTORY pfnCreateDXGIFactory = + (PFN_CREATE_DXGI_FACTORY)CreateDXGIFactory1; +#endif + if (SUCCEEDED(pfnCreateDXGIFactory(&IID_IDXGIFactory2, + (void **)&pDXGIFactory))) { + int adapter = atoi(device); + if (SUCCEEDED(IDXGIFactory2_EnumAdapters(pDXGIFactory, + adapter, + &pAdapter))) { + DXGI_ADAPTER_DESC desc; + if (SUCCEEDED(IDXGIAdapter2_GetDesc(pAdapter, &desc))) { + av_log(ctx, AV_LOG_INFO, + "Using device %04x:%04x (%ls) - LUID %lu %ld.\n", + desc.VendorId, desc.DeviceId, desc.Description, + desc.AdapterLuid.LowPart, + desc.AdapterLuid.HighPart); + display = vaGetDisplayWin32(&desc.AdapterLuid); + } + IDXGIAdapter_Release(pAdapter); + } + IDXGIFactory2_Release(pDXGIFactory); + } +#if !HAVE_UWP + dlclose(dxgi); +#endif + } + + if (!display) { + av_log(ctx, AV_LOG_ERROR, "Cannot open a VA display " + "from Win32 display.\n"); + return AVERROR_UNKNOWN; + } + + av_log(ctx, AV_LOG_VERBOSE, "Opened VA display via " + "Win32 display.\n"); + } +#endif + if (!display) { if (device) av_log(ctx, AV_LOG_ERROR, "No VA display found for " |