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🎥 Command line media player
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C
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#include "config.h"
#include <libavcodec/avcodec.h>
#include <libavutil/hwcontext.h>#include <libavutil/hwcontext_d3d11va.h>
#if HAVE_D3D9_HWACCEL#include <libavutil/hwcontext_dxva2.h>#endif
#include "common/av_common.h"#include "common/common.h"#include "osdep/threads.h"#include "osdep/windows_utils.h"#include "video/fmt-conversion.h"#include "video/hwdec.h"#include "video/mp_image_pool.h"#include "video/mp_image.h"
#include "d3d.h"
HMODULE d3d11_dll, d3d9_dll, dxva2_dll;PFN_D3D11_CREATE_DEVICE d3d11_D3D11CreateDevice;
static mp_once d3d_load_once = MP_STATIC_ONCE_INITIALIZER;
#if !HAVE_UWPstatic void d3d_do_load(void){ d3d11_dll = LoadLibrary(L"d3d11.dll"); d3d9_dll = LoadLibrary(L"d3d9.dll"); dxva2_dll = LoadLibrary(L"dxva2.dll");
if (d3d11_dll) { d3d11_D3D11CreateDevice = (void *)GetProcAddress(d3d11_dll, "D3D11CreateDevice"); }}#elsestatic void d3d_do_load(void){
d3d11_D3D11CreateDevice = D3D11CreateDevice;}#endif
void d3d_load_dlls(void){ mp_exec_once(&d3d_load_once, d3d_do_load);}
// Test if Direct3D11 can be used by us. Basically, this prevents trying to use// D3D11 on Win7, and then failing somewhere in the process.bool d3d11_check_decoding(ID3D11Device *dev){ HRESULT hr; // We assume that NV12 is always supported, if hw decoding is supported at // all. UINT supported = 0; hr = ID3D11Device_CheckFormatSupport(dev, DXGI_FORMAT_NV12, &supported); return !FAILED(hr) && (supported & D3D11_BIND_DECODER);}
static void d3d11_refine_hwframes(AVBufferRef *hw_frames_ctx){ AVHWFramesContext *fctx = (void *)hw_frames_ctx->data;
if (fctx->format == AV_PIX_FMT_D3D11) { AVD3D11VAFramesContext *hwctx = fctx->hwctx;
// According to hwcontex_d3d11va.h, yuv420p means DXGI_FORMAT_420_OPAQUE, // which has no shader support. if (fctx->sw_format != AV_PIX_FMT_YUV420P) hwctx->BindFlags |= D3D11_BIND_SHADER_RESOURCE; }}
AVBufferRef *d3d11_wrap_device_ref(ID3D11Device *device){ AVBufferRef *device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_D3D11VA); if (!device_ref) return NULL;
AVHWDeviceContext *ctx = (void *)device_ref->data; AVD3D11VADeviceContext *hwctx = ctx->hwctx;
ID3D11Device_AddRef(device); hwctx->device = device;
if (av_hwdevice_ctx_init(device_ref) < 0) av_buffer_unref(&device_ref);
return device_ref;}
static struct AVBufferRef *d3d11_create_standalone(struct mpv_global *global, struct mp_log *plog, struct hwcontext_create_dev_params *params){ ID3D11Device *device = NULL; HRESULT hr;
d3d_load_dlls(); if (!d3d11_D3D11CreateDevice) { mp_err(plog, "Failed to load D3D11 library\n"); return NULL; }
hr = d3d11_D3D11CreateDevice(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, D3D11_CREATE_DEVICE_VIDEO_SUPPORT, NULL, 0, D3D11_SDK_VERSION, &device, NULL, NULL); if (FAILED(hr)) { mp_err(plog, "Failed to create D3D11 Device: %s\n", mp_HRESULT_to_str(hr)); return NULL; }
AVBufferRef *avref = d3d11_wrap_device_ref(device); ID3D11Device_Release(device); if (!avref) mp_err(plog, "Failed to allocate AVHWDeviceContext.\n");
return avref;}
const struct hwcontext_fns hwcontext_fns_d3d11 = { .av_hwdevice_type = AV_HWDEVICE_TYPE_D3D11VA, .refine_hwframes = d3d11_refine_hwframes, .create_dev = d3d11_create_standalone,};
#if HAVE_D3D9_HWACCEL
#define DXVA2API_USE_BITFIELDS#include <libavutil/common.h>
#include <libavutil/hwcontext_dxva2.h>
static void d3d9_free_av_device_ref(AVHWDeviceContext *ctx){ AVDXVA2DeviceContext *hwctx = ctx->hwctx;
if (hwctx->devmgr) IDirect3DDeviceManager9_Release(hwctx->devmgr);}
AVBufferRef *d3d9_wrap_device_ref(IDirect3DDevice9 *device){ HRESULT hr;
d3d_load_dlls(); if (!dxva2_dll) return NULL;
HRESULT (WINAPI *DXVA2CreateDirect3DDeviceManager9)(UINT *, IDirect3DDeviceManager9 **) = (void *)GetProcAddress(dxva2_dll, "DXVA2CreateDirect3DDeviceManager9"); if (!DXVA2CreateDirect3DDeviceManager9) return NULL;
AVBufferRef *device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DXVA2); if (!device_ref) return NULL;
AVHWDeviceContext *ctx = (void *)device_ref->data; AVDXVA2DeviceContext *hwctx = ctx->hwctx;
UINT reset_token = 0; hr = DXVA2CreateDirect3DDeviceManager9(&reset_token, &hwctx->devmgr); if (FAILED(hr)) goto fail;
hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, device, reset_token); if (FAILED(hr)) goto fail;
ctx->free = d3d9_free_av_device_ref;
if (av_hwdevice_ctx_init(device_ref) < 0) goto fail;
return device_ref;
fail: d3d9_free_av_device_ref(ctx); av_buffer_unref(&device_ref); return NULL;}
static struct AVBufferRef *d3d9_create_standalone(struct mpv_global *global, struct mp_log *plog, struct hwcontext_create_dev_params *params){ d3d_load_dlls(); if (!d3d9_dll || !dxva2_dll) { mp_err(plog, "Failed to load D3D9 library\n"); return NULL; }
HRESULT (WINAPI *Direct3DCreate9Ex)(UINT, IDirect3D9Ex **) = (void *)GetProcAddress(d3d9_dll, "Direct3DCreate9Ex"); if (!Direct3DCreate9Ex) { mp_err(plog, "Failed to locate Direct3DCreate9Ex\n"); return NULL; }
IDirect3D9Ex *d3d9ex = NULL; HRESULT hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &d3d9ex); if (FAILED(hr)) { mp_err(plog, "Failed to create IDirect3D9Ex object\n"); return NULL; }
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); IDirect3D9_Release(d3d9ex); if (FAILED(hr)) { mp_err(plog, "Failed to create Direct3D device: %s\n", mp_HRESULT_to_str(hr)); return NULL; }
AVBufferRef *avref = d3d9_wrap_device_ref((IDirect3DDevice9 *)exdev); IDirect3DDevice9Ex_Release(exdev); if (!avref) mp_err(plog, "Failed to allocate AVHWDeviceContext.\n");
return avref;}
const struct hwcontext_fns hwcontext_fns_dxva2 = { .av_hwdevice_type = AV_HWDEVICE_TYPE_DXVA2, .create_dev = d3d9_create_standalone,};
#endif /* HAVE_D3D9_HWACCEL */