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mpv/video/decode/hw_d3d11va.c

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/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libavcodec/d3d11va.h>
#include <libavutil/mem.h>
#include "config.h"
#include "lavc.h"
#include "common/common.h"
#include "common/av_common.h"
#include "osdep/windows_utils.h"
#include "video/fmt-conversion.h"
#include "video/mp_image_pool.h"
#include "video/hwdec.h"
#include "d3d.h"
#if !HAVE_D3D_HWACCEL_NEW
#define ADDITIONAL_SURFACES HWDEC_EXTRA_SURFACES
struct d3d11va_decoder {
ID3D11VideoDecoder *decoder;
struct mp_image_pool *pool;
ID3D11Texture2D *staging;
int mpfmt_decoded;
};
struct priv {
struct mp_log *log;
ID3D11Device *device;
ID3D11DeviceContext *device_ctx;
ID3D11VideoDevice *video_dev;
ID3D11VideoContext *video_ctx;
struct d3d11va_decoder *decoder;
struct mp_image_pool *sw_pool;
};
struct d3d11va_surface {
ID3D11Texture2D *texture;
ID3D11VideoDecoderOutputView *surface;
};
static void d3d11va_release_img(void *arg)
{
struct d3d11va_surface *surface = arg;
if (surface->surface)
ID3D11VideoDecoderOutputView_Release(surface->surface);
if (surface->texture)
ID3D11Texture2D_Release(surface->texture);
talloc_free(surface);
}
static struct mp_image *d3d11va_new_ref(ID3D11VideoDecoderOutputView *view,
int w, int h)
{
if (!view)
return NULL;
struct d3d11va_surface *surface = talloc_zero(NULL, struct d3d11va_surface);
surface->surface = view;
ID3D11VideoDecoderOutputView_AddRef(surface->surface);
ID3D11VideoDecoderOutputView_GetResource(
surface->surface, (ID3D11Resource **)&surface->texture);
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC surface_desc;
ID3D11VideoDecoderOutputView_GetDesc(surface->surface, &surface_desc);
struct mp_image *mpi =
mp_image_new_custom_ref(NULL, surface, d3d11va_release_img);
if (!mpi)
abort();
mp_image_setfmt(mpi, IMGFMT_D3D11VA);
mp_image_set_size(mpi, w, h);
mpi->planes[0] = (void *)surface->texture;
mpi->planes[1] = (void *)(intptr_t)surface_desc.Texture2D.ArraySlice;
mpi->planes[2] = NULL;
mpi->planes[3] = (void *)surface->surface;
return mpi;
}
static struct mp_image *d3d11va_allocate_image(struct lavc_ctx *s, int w, int h)
{
struct priv *p = s->hwdec_priv;
struct mp_image *img = mp_image_pool_get_no_alloc(p->decoder->pool,
IMGFMT_D3D11VA, w, h);
if (!img)
MP_ERR(p, "Failed to get free D3D11VA surface\n");
return img;
}
static struct mp_image *d3d11va_retrieve_image(struct lavc_ctx *s,
struct mp_image *img)
{
HRESULT hr;
struct priv *p = s->hwdec_priv;
ID3D11Texture2D *staging = p->decoder->staging;
if (img->imgfmt != IMGFMT_D3D11VA)
return img;
ID3D11Texture2D *texture = (void *)img->planes[0];
int subindex = (intptr_t)img->planes[1];
if (!texture) {
MP_ERR(p, "Failed to get Direct3D texture and surface from mp_image\n");
return img;
}
D3D11_TEXTURE2D_DESC texture_desc;
ID3D11Texture2D_GetDesc(texture, &texture_desc);
if (texture_desc.Width < img->w || texture_desc.Height < img->h) {
MP_ERR(p, "Direct3D11 texture smaller than mp_image dimensions\n");
return img;
}
// copy to the staging texture
ID3D11DeviceContext_CopySubresourceRegion(
p->device_ctx,
(ID3D11Resource *)staging, 0, 0, 0, 0,
(ID3D11Resource *)texture, subindex, NULL);
struct mp_image *sw_img = mp_image_pool_get(p->sw_pool,
p->decoder->mpfmt_decoded,
texture_desc.Width,
texture_desc.Height);
if (!sw_img) {
MP_ERR(p, "Failed to get %s surface from CPU pool\n",
mp_imgfmt_to_name(p->decoder->mpfmt_decoded));
return img;
}
// copy staging texture to the cpu mp_image
D3D11_MAPPED_SUBRESOURCE lock;
hr = ID3D11DeviceContext_Map(p->device_ctx, (ID3D11Resource *)staging,
0, D3D11_MAP_READ, 0, &lock);
if (FAILED(hr)) {
MP_ERR(p, "Failed to map D3D11 surface: %s\n", mp_HRESULT_to_str(hr));
talloc_free(sw_img);
return img;
}
copy_nv12(sw_img, lock.pData, lock.RowPitch, texture_desc.Height);
ID3D11DeviceContext_Unmap(p->device_ctx, (ID3D11Resource *)staging, 0);
mp_image_set_size(sw_img, img->w, img->h);
mp_image_copy_attributes(sw_img, img);
talloc_free(img);
return sw_img;
}
#define DFMT(name) MP_CONCAT(DXGI_FORMAT_, name), # name
static const struct d3d_decoded_format d3d11_formats[] = {
{DFMT(NV12), 8, IMGFMT_NV12},
{DFMT(P010), 10, IMGFMT_P010},
{DFMT(P016), 16, IMGFMT_P010},
};
#undef DFMT
// Update hw_subfmt to the underlying format. Needed because AVFrame does not
// have such an attribute, so it can't be passed through, and is updated here
// instead. (But in the future, AVHWFramesContext could be used.)
static struct mp_image *d3d11va_update_image_attribs(struct lavc_ctx *s,
struct mp_image *img)
{
ID3D11Texture2D *texture = (void *)img->planes[0];
if (!texture)
return img;
D3D11_TEXTURE2D_DESC texture_desc;
ID3D11Texture2D_GetDesc(texture, &texture_desc);
for (int n = 0; n < MP_ARRAY_SIZE(d3d11_formats); n++) {
if (d3d11_formats[n].dxfmt == texture_desc.Format) {
img->params.hw_subfmt = d3d11_formats[n].mpfmt;
break;
}
}
if (img->params.hw_subfmt == IMGFMT_NV12)
mp_image_setfmt(img, IMGFMT_D3D11NV12);
return img;
}
static bool d3d11_format_supported(struct lavc_ctx *s, const GUID *guid,
const struct d3d_decoded_format *format)
{
struct priv *p = s->hwdec_priv;
BOOL is_supported = FALSE;
HRESULT hr = ID3D11VideoDevice_CheckVideoDecoderFormat(
p->video_dev, guid, format->dxfmt, &is_supported);
if (FAILED(hr)) {
MP_ERR(p, "Check decoder output format %s for decoder %s: %s\n",
format->name, d3d_decoder_guid_to_desc(guid),
mp_HRESULT_to_str(hr));
}
return is_supported;
}
static void dump_decoder_info(struct lavc_ctx *s, const GUID *guid)
{
struct priv *p = s->hwdec_priv;
char fmts[256] = {0};
for (int i = 0; i < MP_ARRAY_SIZE(d3d11_formats); i++) {
const struct d3d_decoded_format *format = &d3d11_formats[i];
if (d3d11_format_supported(s, guid, format))
mp_snprintf_cat(fmts, sizeof(fmts), " %s", format->name);
}
MP_VERBOSE(p, "%s %s\n", d3d_decoder_guid_to_desc(guid), fmts);
}
static void d3d11va_destroy_decoder(void *arg)
{
struct d3d11va_decoder *decoder = arg;
if (decoder->decoder)
ID3D11VideoDecoder_Release(decoder->decoder);
if (decoder->staging)
ID3D11Texture2D_Release(decoder->staging);
}
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;
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;
// Unconditionally load Direct3D DLLs, even when using a VO-supplied D3D11
// device. This prevents a crash that occurs at least with NVIDIA drivers,
// where D3D objects are accessed after ANGLE unloads d3d11.dll.
d3d_load_dlls();
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,
};
#else /* !HAVE_D3D_HWACCEL_NEW */
#include <libavutil/hwcontext.h>
#include <libavutil/hwcontext_d3d11va.h>
static void d3d11_destroy_dev(struct mp_hwdec_ctx *ctx)
{
av_buffer_unref(&ctx->av_device_ref);
ID3D11Device_Release((ID3D11Device *)ctx->ctx);
talloc_free(ctx);
}
static struct mp_hwdec_ctx *d3d11_create_dev(struct mpv_global *global,
struct mp_log *plog, bool probing)
{
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;
}
struct mp_hwdec_ctx *ctx = talloc_ptrtype(NULL, ctx);
*ctx = (struct mp_hwdec_ctx) {
.type = HWDEC_D3D11VA_COPY,
.ctx = device,
.destroy = d3d11_destroy_dev,
.av_device_ref = d3d11_wrap_device_ref(device),
};
if (!ctx->av_device_ref) {
mp_err(plog, "Failed to allocate AVHWDeviceContext.\n");
d3d11_destroy_dev(ctx);
return NULL;
}
return ctx;
}
static struct mp_image *d3d11_update_image_attribs(struct lavc_ctx *s,
struct mp_image *img)
{
if (img->params.hw_subfmt == IMGFMT_NV12)
mp_image_setfmt(img, IMGFMT_D3D11NV12);
return img;
}
const struct vd_lavc_hwdec mp_vd_lavc_d3d11va = {
.type = HWDEC_D3D11VA,
.image_format = IMGFMT_D3D11VA,
.generic_hwaccel = true,
.set_hwframes = true,
.static_pool = true,
.hwframes_refine = d3d_hwframes_refine,
.process_image = d3d11_update_image_attribs,
.pixfmt_map = (const enum AVPixelFormat[][2]) {
{AV_PIX_FMT_YUV420P10, AV_PIX_FMT_P010},
{AV_PIX_FMT_YUV420P, AV_PIX_FMT_NV12},
{AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_NV12},
{AV_PIX_FMT_NONE}
},
};
const struct vd_lavc_hwdec mp_vd_lavc_d3d11va_copy = {
.type = HWDEC_D3D11VA_COPY,
.copying = true,
.image_format = IMGFMT_D3D11VA,
.generic_hwaccel = true,
.create_dev = d3d11_create_dev,
.set_hwframes = true,
.static_pool = true,
.hwframes_refine = d3d_hwframes_refine,
.pixfmt_map = (const enum AVPixelFormat[][2]) {
{AV_PIX_FMT_YUV420P10, AV_PIX_FMT_P010},
{AV_PIX_FMT_YUV420P, AV_PIX_FMT_NV12},
{AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_NV12},
{AV_PIX_FMT_NONE}
},
.delay_queue = HWDEC_DELAY_QUEUE_COUNT,
};
#endif /* else !HAVE_D3D_HWACCEL_NEW */
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