static int d3d11va_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);
ID3D11Texture2D *texture = NULL;
void *tmp = talloc_new(NULL);
UINT n_guids = ID3D11VideoDevice_GetVideoDecoderProfileCount(p->video_dev);
GUID *device_guids = talloc_array(tmp, GUID, n_guids);
for (UINT i = 0; i < n_guids; i++) {
GUID *guid = &device_guids[i];
hr = ID3D11VideoDevice_GetVideoDecoderProfile(p->video_dev, i, guid);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get VideoDecoderProfile %d: %s\n",
i, mp_HRESULT_to_str(hr));
goto done;
}
dump_decoder_info(s, guid);
}
struct d3d_decoder_fmt fmt =
d3d_select_decoder_mode(s, device_guids, n_guids,
d3d11_formats, MP_ARRAY_SIZE(d3d11_formats),
d3d11_format_supported);
if (!fmt.format) {
MP_ERR(p, "Failed to find a suitable decoder\n");
goto done;
}
struct d3d11va_decoder *decoder = talloc_zero(tmp, struct d3d11va_decoder);
talloc_set_destructor(decoder, d3d11va_destroy_decoder);
decoder->mpfmt_decoded = fmt.format->mpfmt;
int n_surfaces = hwdec_get_max_refs(s) + ADDITIONAL_SURFACES;
int w_align = w, h_align = h;
d3d_surface_align(s, &w_align, &h_align);
D3D11_TEXTURE2D_DESC tex_desc = {
.Width = w_align,
.Height = h_align,
.MipLevels = 1,
.Format = fmt.format->dxfmt,
.SampleDesc.Count = 1,
.MiscFlags = 0,
.ArraySize = n_surfaces,
.Usage = D3D11_USAGE_DEFAULT,
.BindFlags = D3D11_BIND_DECODER | D3D11_BIND_SHADER_RESOURCE,
.CPUAccessFlags = 0,
};
hr = ID3D11Device_CreateTexture2D(p->device, &tex_desc, NULL, &texture);
if (FAILED(hr)) {
MP_ERR(p, "Failed to create Direct3D11 texture with %d surfaces: %s\n",
n_surfaces, mp_HRESULT_to_str(hr));
goto done;
}
if (s->hwdec->type == HWDEC_D3D11VA_COPY) {
// create staging texture shared with the CPU with mostly the same
// parameters as the above decoder-bound texture
ID3D11Texture2D_GetDesc(texture, &tex_desc);
tex_desc.MipLevels = 1;
tex_desc.MiscFlags = 0;
tex_desc.ArraySize = 1;
tex_desc.Usage = D3D11_USAGE_STAGING;
tex_desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
tex_desc.BindFlags = 0;
hr = ID3D11Device_CreateTexture2D(p->device, &tex_desc, NULL,
&decoder->staging);
if (FAILED(hr)) {
MP_ERR(p, "Failed to create staging texture: %s\n",
mp_HRESULT_to_str(hr));
goto done;
}
}
// pool to hold the mp_image wrapped surfaces
decoder->pool = talloc_steal(decoder, mp_image_pool_new(n_surfaces));
// array of the same surfaces (needed by ffmpeg)
ID3D11VideoDecoderOutputView **surfaces =
talloc_array_ptrtype(decoder->pool, surfaces, n_surfaces);
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC view_desc = {
.DecodeProfile = *fmt.guid,
.ViewDimension = D3D11_VDOV_DIMENSION_TEXTURE2D,
};
for (int i = 0; i < n_surfaces; i++) {
ID3D11VideoDecoderOutputView **surface = &surfaces[i];
view_desc.Texture2D.ArraySlice = i;
hr = ID3D11VideoDevice_CreateVideoDecoderOutputView(
p->video_dev, (ID3D11Resource *)texture, &view_desc, surface);
if (FAILED(hr)) {
MP_ERR(p, "Failed getting decoder output view %d: %s\n",
i, mp_HRESULT_to_str(hr));
goto done;
}
struct mp_image *img = d3d11va_new_ref(*surface, w, h);
ID3D11VideoDecoderOutputView_Release(*surface); // transferred to img
if (!img) {
MP_ERR(p, "Failed to create D3D11VA image %d\n", i);
goto done;
}
mp_image_pool_add(decoder->pool, img); // transferred to pool
}
D3D11_VIDEO_DECODER_DESC decoder_desc = {
.Guid = *fmt.guid,
.SampleWidth = w,
.SampleHeight = h,
.OutputFormat = fmt.format->dxfmt,
};
UINT n_cfg;
hr = ID3D11VideoDevice_GetVideoDecoderConfigCount(p->video_dev,
&decoder_desc, &n_cfg);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get number of decoder configurations: %s)",
mp_HRESULT_to_str(hr));
goto done;
}
// pick the config with the highest score
D3D11_VIDEO_DECODER_CONFIG *decoder_config =
talloc_zero(decoder, D3D11_VIDEO_DECODER_CONFIG);
unsigned max_score = 0;
for (UINT i = 0; i < n_cfg; i++) {
D3D11_VIDEO_DECODER_CONFIG cfg;
hr = ID3D11VideoDevice_GetVideoDecoderConfig(p->video_dev,
&decoder_desc,
i, &cfg);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get decoder config %d: %s\n",
i, mp_HRESULT_to_str(hr));
goto done;
}
unsigned score = d3d_decoder_config_score(
s, &cfg.guidConfigBitstreamEncryption, cfg.ConfigBitstreamRaw);
if (score > max_score) {
max_score = score;
*decoder_config = cfg;
}
}
if (!max_score) {
MP_ERR(p, "Failed to find a suitable decoder configuration\n");
goto done;
}
hr = ID3D11VideoDevice_CreateVideoDecoder(p->video_dev, &decoder_desc,
decoder_config,
&decoder->decoder);
if (FAILED(hr)) {
MP_ERR(p, "Failed to create video decoder: %s\n",
mp_HRESULT_to_str(hr));
goto done;
}
struct AVD3D11VAContext *avd3d11va_ctx = s->avctx->hwaccel_context;
avd3d11va_ctx->decoder = decoder->decoder;
avd3d11va_ctx->video_context = p->video_ctx;
avd3d11va_ctx->cfg = decoder_config;
avd3d11va_ctx->surface_count = n_surfaces;
avd3d11va_ctx->surface = surfaces;
avd3d11va_ctx->workaround = is_clearvideo(fmt.guid) ?
FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO : 0;
p->decoder = talloc_steal(NULL, decoder);
ret = 0;
done:
// still referenced by pool images / surfaces
if (texture)
ID3D11Texture2D_Release(texture);
talloc_free(tmp);
return ret;
}
static void destroy_device(struct lavc_ctx *s)
{
struct priv *p = s->hwdec_priv;
if (p->device)
ID3D11Device_Release(p->device);
if (p->device_ctx)
ID3D11DeviceContext_Release(p->device_ctx);
}
static bool create_device(struct lavc_ctx *s, BOOL thread_safe)
{
HRESULT hr;
struct priv *p = s->hwdec_priv;
d3d_load_dlls();
if (!d3d11_dll) {
MP_ERR(p, "Failed to load D3D11 library\n");
return false;
}
PFN_D3D11_CREATE_DEVICE CreateDevice =
(void *)GetProcAddress(d3d11_dll, "D3D11CreateDevice");
if (!CreateDevice) {
MP_ERR(p, "Failed to get D3D11CreateDevice symbol from DLL: %s\n",
mp_LastError_to_str());
return false;
}
hr = CreateDevice(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL,
D3D11_CREATE_DEVICE_VIDEO_SUPPORT, NULL, 0,
D3D11_SDK_VERSION, &p->device, NULL, &p->device_ctx);
if (FAILED(hr)) {
MP_ERR(p, "Failed to create D3D11 Device: %s\n",
mp_HRESULT_to_str(hr));
return false;
}
ID3D10Multithread *multithread;
hr = ID3D11Device_QueryInterface(p->device, &IID_ID3D10Multithread,
(void **)&multithread);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get Multithread interface: %s\n",
mp_HRESULT_to_str(hr));
return false;
}
ID3D10Multithread_SetMultithreadProtected(multithread, thread_safe);
ID3D10Multithread_Release(multithread);
return true;
}
static void d3d11va_uninit(struct lavc_ctx *s)
{
struct priv *p = s->hwdec_priv;
if (!p)
return;
talloc_free(p->decoder);
av_freep(&s->avctx->hwaccel_context);
if (p->video_dev)
ID3D11VideoDevice_Release(p->video_dev);
if (p->video_ctx)
ID3D11VideoContext_Release(p->video_ctx);
destroy_device(s);
TA_FREEP(&s->hwdec_priv);
}
static int d3d11va_init(struct lavc_ctx *s)
{
HRESULT hr;
struct priv *p = talloc_zero(NULL, struct priv);
if (!p)
return -1;
s->hwdec_priv = p;
p->log = mp_log_new(s, s->log, "d3d11va");
if (s->hwdec->type == HWDEC_D3D11VA_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) {
ID3D11Device_AddRef(p->device);
ID3D11Device_GetImmediateContext(p->device, &p->device_ctx);
if (!p->device_ctx)
goto fail;
MP_VERBOSE(p, "Using VO-supplied device %p.\n", p->device);
} else if (s->hwdec->type == HWDEC_D3D11VA) {
MP_ERR(p, "No Direct3D device provided for native d3d11 decoding\n");
goto fail;
} else {
if (!create_device(s, FALSE))
goto fail;
}
hr = ID3D11DeviceContext_QueryInterface(p->device_ctx,
&IID_ID3D11VideoContext,
(void **)&p->video_ctx);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get VideoContext interface: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
hr = ID3D11Device_QueryInterface(p->device,
&IID_ID3D11VideoDevice,
(void **)&p->video_dev);
if (FAILED(hr)) {
MP_ERR(p, "Failed to get VideoDevice interface. %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
s->avctx->hwaccel_context = av_d3d11va_alloc_context();
if (!s->avctx->hwaccel_context) {
MP_ERR(p, "Failed to allocate hwaccel_context\n");
goto fail;
}
return 0;
fail:
d3d11va_uninit(s);
return -1;
}
static int d3d11va_probe(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
const char *codec)
{
// d3d11va-copy can do without external context; dxva2 requires it.
if (hwdec->type != HWDEC_D3D11VA_COPY) {
if (!hwdec_devices_load(ctx->hwdec_devs, HWDEC_D3D11VA))
return HWDEC_ERR_NO_CTX;
}
return d3d_probe_codec(codec);
}
const struct vd_lavc_hwdec mp_vd_lavc_d3d11va = {
.type = HWDEC_D3D11VA,
.image_format = IMGFMT_D3D11VA,
.probe = d3d11va_probe,
.init = d3d11va_init,
.uninit = d3d11va_uninit,
.init_decoder = d3d11va_init_decoder,
.allocate_image = d3d11va_allocate_image,
.process_image = d3d11va_update_image_attribs,
};
const struct vd_lavc_hwdec mp_vd_lavc_d3d11va_copy = {
.type = HWDEC_D3D11VA_COPY,
.copying = true,
.image_format = IMGFMT_D3D11VA,
.probe = d3d11va_probe,
.init = d3d11va_init,
.uninit = d3d11va_uninit,
.init_decoder = d3d11va_init_decoder,
.allocate_image = d3d11va_allocate_image,
.process_image = d3d11va_retrieve_image,
.delay_queue = HWDEC_DELAY_QUEUE_COUNT,
};
/**
* It creates a Direct3D11 decoder using the given video format
*/
static int DxCreateDecoderSurfaces(vlc_va_t *va, int codec_id, const video_format_t *fmt, bool b_threading)
{
vlc_va_sys_t *sys = va->sys;
directx_sys_t *dx_sys = &va->sys->dx_sys;
HRESULT hr;
ID3D10Multithread *pMultithread;
hr = ID3D11Device_QueryInterface( (ID3D11Device*) dx_sys->d3ddev, &IID_ID3D10Multithread, (void **)&pMultithread);
if (SUCCEEDED(hr)) {
ID3D10Multithread_SetMultithreadProtected(pMultithread, b_threading && dx_sys->thread_count > 1);
ID3D10Multithread_Release(pMultithread);
}
D3D11_TEXTURE2D_DESC texDesc;
ZeroMemory(&texDesc, sizeof(texDesc));
texDesc.Width = dx_sys->surface_width;
texDesc.Height = dx_sys->surface_height;
texDesc.MipLevels = 1;
texDesc.Format = sys->render;
texDesc.SampleDesc.Count = 1;
texDesc.MiscFlags = 0;
texDesc.ArraySize = dx_sys->surface_count;
texDesc.Usage = D3D11_USAGE_DEFAULT;
texDesc.BindFlags = D3D11_BIND_DECODER;
texDesc.CPUAccessFlags = 0;
ID3D11Texture2D *p_texture;
hr = ID3D11Device_CreateTexture2D( (ID3D11Device*) dx_sys->d3ddev, &texDesc, NULL, &p_texture );
if (FAILED(hr)) {
msg_Err(va, "CreateTexture2D %d failed. (hr=0x%0lx)", dx_sys->surface_count, hr);
return VLC_EGENERIC;
}
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc;
ZeroMemory(&viewDesc, sizeof(viewDesc));
viewDesc.DecodeProfile = dx_sys->input;
viewDesc.ViewDimension = D3D11_VDOV_DIMENSION_TEXTURE2D;
int surface_count = dx_sys->surface_count;
for (dx_sys->surface_count = 0; dx_sys->surface_count < surface_count; dx_sys->surface_count++) {
viewDesc.Texture2D.ArraySlice = dx_sys->surface_count;
hr = ID3D11VideoDevice_CreateVideoDecoderOutputView( (ID3D11VideoDevice*) dx_sys->d3ddec,
(ID3D11Resource*) p_texture,
&viewDesc,
(ID3D11VideoDecoderOutputView**) &dx_sys->hw_surface[dx_sys->surface_count] );
if (FAILED(hr)) {
msg_Err(va, "CreateVideoDecoderOutputView %d failed. (hr=0x%0lx)", dx_sys->surface_count, hr);
ID3D11Texture2D_Release(p_texture);
return VLC_EGENERIC;
}
}
msg_Dbg(va, "ID3D11VideoDecoderOutputView succeed with %d surfaces (%dx%d)",
dx_sys->surface_count, dx_sys->surface_width, dx_sys->surface_height);
D3D11_VIDEO_DECODER_DESC decoderDesc;
ZeroMemory(&decoderDesc, sizeof(decoderDesc));
decoderDesc.Guid = dx_sys->input;
decoderDesc.SampleWidth = fmt->i_width;
decoderDesc.SampleHeight = fmt->i_height;
decoderDesc.OutputFormat = sys->render;
UINT cfg_count;
hr = ID3D11VideoDevice_GetVideoDecoderConfigCount( (ID3D11VideoDevice*) dx_sys->d3ddec, &decoderDesc, &cfg_count );
if (FAILED(hr)) {
msg_Err(va, "GetVideoDecoderConfigCount failed. (hr=0x%lX)", hr);
return VLC_EGENERIC;
}
/* List all configurations available for the decoder */
D3D11_VIDEO_DECODER_CONFIG cfg_list[cfg_count];
for (unsigned i = 0; i < cfg_count; i++) {
hr = ID3D11VideoDevice_GetVideoDecoderConfig( (ID3D11VideoDevice*) dx_sys->d3ddec, &decoderDesc, i, &cfg_list[i] );
if (FAILED(hr)) {
msg_Err(va, "GetVideoDecoderConfig failed. (hr=0x%lX)", hr);
return VLC_EGENERIC;
}
}
msg_Dbg(va, "we got %d decoder configurations", cfg_count);
/* Select the best decoder configuration */
int cfg_score = 0;
for (unsigned i = 0; i < cfg_count; i++) {
const D3D11_VIDEO_DECODER_CONFIG *cfg = &cfg_list[i];
/* */
msg_Dbg(va, "configuration[%d] ConfigBitstreamRaw %d",
i, cfg->ConfigBitstreamRaw);
/* */
int score;
if (cfg->ConfigBitstreamRaw == 1)
score = 1;
else if (codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
score = 2;
else
continue;
if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA_NoEncrypt))
score += 16;
if (cfg_score < score) {
sys->cfg = *cfg;
cfg_score = score;
}
}
if (cfg_score <= 0) {
msg_Err(va, "Failed to find a supported decoder configuration");
return VLC_EGENERIC;
}
/* Create the decoder */
ID3D11VideoDecoder *decoder;
hr = ID3D11VideoDevice_CreateVideoDecoder( (ID3D11VideoDevice*) dx_sys->d3ddec, &decoderDesc, &sys->cfg, &decoder );
if (FAILED(hr)) {
msg_Err(va, "ID3D11VideoDevice_CreateVideoDecoder failed. (hr=0x%lX)", hr);
dx_sys->decoder = NULL;
return VLC_EGENERIC;
}
dx_sys->decoder = (IUnknown*) decoder;
msg_Dbg(va, "DxCreateDecoderSurfaces succeed");
return VLC_SUCCESS;
}
