bool DXVA2Decoder::GetInputOutput(void)
{
if (!m_service)
return false;
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Looking for support for %1")
.arg(toString(m_codec_id)));
uint input_count;
GUID *input_list;
m_format.Format = D3DFMT_UNKNOWN;
IDirectXVideoDecoderService_GetDecoderDeviceGuids(
m_service, &input_count, &input_list);
for (const dxva2_mode* mode = dxva2_modes;
!mode->name.isEmpty() && m_format.Format == D3DFMT_UNKNOWN;
mode++)
{
if (mode->codec != m_codec_id)
continue;
for (uint j = 0; j < input_count; j++)
{
if (IsEqualGUID(input_list[j], *mode->guid))
{
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Testing %1")
.arg(mode->name));
if (TestTarget(input_list[j]))
break;
}
}
}
return m_format.Format != D3DFMT_UNKNOWN;
}
static int DxGetInputList(vlc_va_t *va, input_list_t *p_list)
{
directx_sys_t *dx_sys = &va->sys->dx_sys;
UINT input_count = 0;
GUID *input_list = NULL;
if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids((IDirectXVideoDecoderService*) dx_sys->d3ddec,
&input_count,
&input_list))) {
msg_Err(va, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
return VLC_EGENERIC;
}
p_list->count = input_count;
p_list->list = input_list;
p_list->pf_release = ReleaseInputList;
return VLC_SUCCESS;
}
static void test_decoder_service(HWND focus_window)
{
IDirectXVideoDecoderService *service;
HRESULT hr;
UINT count;
GUID *guids;
int i, j;
if (!create_video_service(focus_window, &IID_IDirectXVideoDecoderService, (void**)&service))
{
skip("Failed to create video decoder service, skipping decoder service tests\n");
return;
}
hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(service, &count, &guids);
ok(!hr, "Failed to get decoder guids: %x\n", hr);
if (hr) return;
for (i = 0; i < count; i++)
{
trace("supported codec: %s\n", convert_decoderguid_to_str(&guids[i]));
for (j = 0; j < sizeof(decoder_tests) / sizeof(decoder_tests[0]); j++)
{
if (IsEqualGUID(&guids[i], decoder_tests[j].guid))
decoder_tests[j].supported = TRUE;
}
}
CoTaskMemFree(guids);
for (i = 0; i < sizeof(decoder_tests) / sizeof(decoder_tests[0]); i++)
{
if (!decoder_tests[i].supported)
{
skip("Decoder %s not supported, skipping test\n", convert_decoderguid_to_str(decoder_tests[i].guid));
continue;
}
test_decoder(service, decoder_tests[i].guid, decoder_tests[i].width, decoder_tests[i].height,
decoder_tests[i].surface_count);
}
IDirectXVideoDecoderService_Release(service);
}
/**
* Find the best suited decoder mode GUID and render format.
*/
static int DxFindVideoServiceConversion(vlc_va_dxva2_t *va, GUID *input, D3DFORMAT *output)
{
/* Retreive supported modes from the decoder service */
UINT input_count = 0;
GUID *input_list = NULL;
if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids(va->vs,
&input_count,
&input_list))) {
msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
return VLC_EGENERIC;
}
for (unsigned i = 0; i < input_count; i++) {
const GUID *g = &input_list[i];
const dxva2_mode_t *mode = Dxva2FindMode(g);
if (mode) {
msg_Dbg(va->log, "- '%s' is supported by hardware", mode->name);
} else {
msg_Warn(va->log, "- Unknown GUID = %08X-%04x-%04x-XXXX",
(unsigned)g->Data1, g->Data2, g->Data3);
}
}
/* Try all supported mode by our priority */
for (unsigned i = 0; dxva2_modes[i].name; i++) {
const dxva2_mode_t *mode = &dxva2_modes[i];
if (!mode->codec || mode->codec != va->codec_id)
continue;
/* */
bool is_suported = false;
for (const GUID *g = &input_list[0]; !is_suported && g < &input_list[input_count]; g++) {
is_suported = IsEqualGUID(mode->guid, g);
}
if (!is_suported)
continue;
/* */
msg_Dbg(va->log, "Trying to use '%s' as input", mode->name);
UINT output_count = 0;
D3DFORMAT *output_list = NULL;
if (FAILED(IDirectXVideoDecoderService_GetDecoderRenderTargets(va->vs, mode->guid,
&output_count,
&output_list))) {
msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderRenderTargets failed");
continue;
}
for (unsigned j = 0; j < output_count; j++) {
const D3DFORMAT f = output_list[j];
const d3d_format_t *format = D3dFindFormat(f);
if (format) {
msg_Dbg(va->log, "%s is supported for output", format->name);
} else {
msg_Dbg(va->log, "%d is supported for output (%4.4s)", f, (const char*)&f);
}
}
/* */
for (unsigned j = 0; d3d_formats[j].name; j++) {
const d3d_format_t *format = &d3d_formats[j];
/* */
bool is_suported = false;
for (unsigned k = 0; !is_suported && k < output_count; k++) {
is_suported = format->format == output_list[k];
}
if (!is_suported)
continue;
/* We have our solution */
msg_Dbg(va->log, "Using '%s' to decode to '%s'", mode->name, format->name);
*input = *mode->guid;
*output = format->format;
CoTaskMemFree(output_list);
CoTaskMemFree(input_list);
return VLC_SUCCESS;
}
CoTaskMemFree(output_list);
}
CoTaskMemFree(input_list);
return VLC_EGENERIC;
}
static int dxva2_create_decoder(AVCodecContext *s)
{
HwAccelContext *hac = s->opaque;
DXVA2Context *ctx = hac->hwaccel_ctx;
struct dxva_context *dxva_ctx = s->hwaccel_context;
GUID *guid_list = NULL;
unsigned guid_count = 0, i, j;
GUID device_guid = GUID_NULL;
D3DFORMAT target_format = 0;
DXVA2_VideoDesc desc = { 0 };
DXVA2_ConfigPictureDecode config;
HRESULT hr;
int surface_alignment;
int ret;
hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
goto fail;
}
for (i = 0; dxva2_modes[i].guid; i++) {
D3DFORMAT *target_list = NULL;
unsigned target_count = 0;
const dxva2_mode *mode = &dxva2_modes[i];
if (mode->codec != s->codec_id)
continue;
for (j = 0; j < guid_count; j++) {
if (IsEqualGUID(mode->guid, &guid_list[j]))
break;
}
if (j == guid_count)
continue;
hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
if (FAILED(hr)) {
continue;
}
for (j = 0; j < target_count; j++) {
const D3DFORMAT format = target_list[j];
if (format == MKTAG('N','V','1','2')) {
target_format = format;
break;
}
}
CoTaskMemFree(target_list);
if (target_format) {
device_guid = *mode->guid;
break;
}
}
CoTaskMemFree(guid_list);
if (IsEqualGUID(&device_guid, &GUID_NULL)) {
av_log(NULL, loglevel, "No decoder device for codec found\n");
goto fail;
}
desc.SampleWidth = s->coded_width;
desc.SampleHeight = s->coded_height;
desc.Format = target_format;
ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
if (ret < 0) {
goto fail;
}
/* decoding MPEG-2 requires additional alignment on some Intel GPUs,
but it causes issues for H.264 on certain AMD GPUs..... */
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
surface_alignment = 32;
/* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
all coding features have enough room to work with */
else if (s->codec_id == AV_CODEC_ID_HEVC)
surface_alignment = 128;
else
surface_alignment = 16;
/* 4 base work surfaces */
ctx->num_surfaces = 4;
/* add surfaces based on number of possible refs */
if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
ctx->num_surfaces += 16;
else
ctx->num_surfaces += 2;
/* add extra surfaces for frame threading */
if (s->active_thread_type & FF_THREAD_FRAME)
ctx->num_surfaces += s->thread_count;
ctx->surfaces = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surfaces));
ctx->surface_infos = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surface_infos));
if (!ctx->surfaces || !ctx->surface_infos) {
av_log(NULL, loglevel, "Unable to allocate surface arrays\n");
goto fail;
}
hr = IDirectXVideoDecoderService_CreateSurface(ctx->decoder_service,
FFALIGN(s->coded_width, surface_alignment),
FFALIGN(s->coded_height, surface_alignment),
ctx->num_surfaces - 1,
target_format, D3DPOOL_DEFAULT, 0,
DXVA2_VideoDecoderRenderTarget,
ctx->surfaces, NULL);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create %d video surfaces\n", ctx->num_surfaces);
goto fail;
}
hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
&desc, &config, ctx->surfaces,
ctx->num_surfaces, &ctx->decoder);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
goto fail;
}
ctx->decoder_guid = device_guid;
ctx->decoder_config = config;
dxva_ctx->cfg = &ctx->decoder_config;
dxva_ctx->decoder = ctx->decoder;
dxva_ctx->surface = ctx->surfaces;
dxva_ctx->surface_count = ctx->num_surfaces;
if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
return 0;
fail:
dxva2_destroy_decoder(s);
return AVERROR(EINVAL);
}
static int dxva2_create_decoder(struct lavc_ctx *s, int w, int h,
enum AVCodecID codec_id, int profile)
{
DXVA2Context *ctx = s->hwdec_priv;
struct dxva_context *dxva_ctx = s->avctx->hwaccel_context;
GUID *guid_list = NULL;
unsigned guid_count = 0, i, j;
GUID device_guid = GUID_NULL;
D3DFORMAT target_format = 0;
DXVA2_VideoDesc desc = { 0 };
DXVA2_ConfigPictureDecode config;
HRESULT hr;
int surface_alignment;
int ret;
hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
if (FAILED(hr)) {
MP_ERR(ctx, "Failed to retrieve decoder device GUIDs\n");
goto fail;
}
// dump all decoder info
MP_VERBOSE(ctx, "%d decoder devices:\n", (int)guid_count);
for (j = 0; j < guid_count; j++) {
GUID *guid = &guid_list[j];
const char *name = "<unknown>";
for (i = 0; dxva2_modes[i].guid; i++) {
if (IsEqualGUID(dxva2_modes[i].guid, guid))
name = dxva2_modes[i].name;
}
D3DFORMAT *target_list = NULL;
unsigned target_count = 0;
hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, guid, &target_count, &target_list);
if (FAILED(hr))
continue;
char fmts[256] = {0};
for (i = 0; i < target_count; i++)
mp_snprintf_cat(fmts, sizeof(fmts), " %s", mp_tag_str(target_list[i]));
CoTaskMemFree(target_list);
MP_VERBOSE(ctx, "%s %s %s\n", mp_GUID_to_str(guid), name, fmts);
}
// find a suitable decoder
for (i = 0; dxva2_modes[i].guid; i++) {
D3DFORMAT *target_list = NULL;
unsigned target_count = 0;
const dxva2_mode *mode = &dxva2_modes[i];
if (mode->codec != codec_id)
continue;
for (j = 0; j < guid_count; j++) {
if (IsEqualGUID(mode->guid, &guid_list[j]))
break;
}
if (j == guid_count)
continue;
hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
if (FAILED(hr)) {
continue;
}
for (j = 0; j < target_count; j++) {
const D3DFORMAT format = target_list[j];
if (format == MKTAG('N','V','1','2')) {
target_format = format;
break;
}
}
CoTaskMemFree(target_list);
if (target_format) {
device_guid = *mode->guid;
break;
}
}
CoTaskMemFree(guid_list);
if (IsEqualGUID(&device_guid, &GUID_NULL)) {
MP_ERR(ctx, "No decoder device for codec found\n");
goto fail;
}
desc.SampleWidth = w;
desc.SampleHeight = h;
desc.Format = target_format;
ret = dxva2_get_decoder_configuration(s, codec_id, &device_guid, &desc, &config);
if (ret < 0) {
goto fail;
}
/* decoding MPEG-2 requires additional alignment on some Intel GPUs,
but it causes issues for H.264 on certain AMD GPUs..... */
if (codec_id == AV_CODEC_ID_MPEG2VIDEO)
surface_alignment = 32;
/* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
all coding features have enough room to work with */
else if (codec_id == AV_CODEC_ID_HEVC)
surface_alignment = 128;
else
surface_alignment = 16;
/* 4 base work surfaces */
ctx->num_surfaces = 4 + ADDTIONAL_SURFACES;
/* add surfaces based on number of possible refs */
if (codec_id == AV_CODEC_ID_H264 || codec_id == AV_CODEC_ID_HEVC)
ctx->num_surfaces += 16;
else
ctx->num_surfaces += 2;
ctx->surfaces = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surfaces));
ctx->surface_infos = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surface_infos));
if (!ctx->surfaces || !ctx->surface_infos) {
MP_ERR(ctx, "Unable to allocate surface arrays\n");
goto fail;
}
hr = IDirectXVideoDecoderService_CreateSurface(ctx->decoder_service,
FFALIGN(w, surface_alignment),
FFALIGN(h, surface_alignment),
ctx->num_surfaces - 1,
target_format, D3DPOOL_DEFAULT, 0,
DXVA2_VideoDecoderRenderTarget,
ctx->surfaces, NULL);
if (FAILED(hr)) {
MP_ERR(ctx, "Failed to create %d video surfaces\n", ctx->num_surfaces);
goto fail;
}
hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
&desc, &config, ctx->surfaces,
ctx->num_surfaces, &ctx->decoder);
if (FAILED(hr)) {
MP_ERR(ctx, "Failed to create DXVA2 video decoder\n");
goto fail;
}
ctx->decoder_guid = device_guid;
ctx->decoder_config = config;
dxva_ctx->cfg = &ctx->decoder_config;
dxva_ctx->decoder = ctx->decoder;
dxva_ctx->surface = ctx->surfaces;
dxva_ctx->surface_count = ctx->num_surfaces;
if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
return 0;
fail:
dxva2_destroy_decoder(s);
return -1;
}
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,
};
/**
* Find the best suited decoder mode GUID and render format.
*/
static int hb_dx_find_video_service_conversion( hb_va_dxva2_t *dxva2, GUID *input, D3DFORMAT *output )
{
unsigned int input_count = 0;
GUID *input_list = NULL;
if( FAILED( IDirectXVideoDecoderService_GetDecoderDeviceGuids( dxva2->vs, &input_count, &input_list )))
{
hb_log( "dxva2:IDirectXVideoDecoderService_GetDecoderDeviceGuids failed" );
return HB_WORK_ERROR;
}
unsigned i, j;
for( i = 0; i < input_count; i++ )
{
const GUID *g = &input_list[i];
const hb_dx_mode_t *mode = hb_dx_find_mode( g );
}
for( i = 0; dxva2_modes[i].name; i++ )
{
const hb_dx_mode_t *mode = &dxva2_modes[i];
if( !mode->codec || mode->codec != dxva2->codec_id )
continue;
int is_suported = 0;
const GUID *g;
for( g = &input_list[0]; !is_suported && g < &input_list[input_count]; g++ )
{
is_suported = IsEqualGUID( mode->guid, g );
}
if( !is_suported )
continue;
unsigned int output_count = 0;
D3DFORMAT *output_list = NULL;
if( FAILED( IDirectXVideoDecoderService_GetDecoderRenderTargets( dxva2->vs, mode->guid, &output_count, &output_list )))
{
hb_log( "dxva2:IDirectXVideoDecoderService_GetDecoderRenderTargets failed" );
continue;
}
for( j = 0; j < output_count; j++ )
{
const D3DFORMAT f = output_list[j];
const hb_d3d_format_t *format = hb_d3d_find_format( f );
if( format )
{
//hb_log( "dxva2:%s is supported for output", format->name );
}
else
{
hb_log( "dxvar2:%d is supported for output (%4.4s)", f, (const char*)&f );
}
}
for( j = 0; d3d_formats[j].name; j++ )
{
const hb_d3d_format_t *format = &d3d_formats[j];
int is_suported = 0;
unsigned k;
for( k = 0; !is_suported && k < output_count; k++ )
{
is_suported = format->format == output_list[k];
}
if( !is_suported )
continue;
*input = *mode->guid;
*output = format->format;
return HB_WORK_OK;
}
}
return HB_WORK_ERROR;
}
static int dxva2_create_decoder(AVCodecContext *s)
{
InputStream *ist = s->opaque;
int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
DXVA2Context *ctx = ist->hwaccel_ctx;
struct dxva_context *dxva_ctx = s->hwaccel_context;
GUID *guid_list = NULL;
unsigned guid_count = 0, i, j;
GUID device_guid = GUID_NULL;
const D3DFORMAT surface_format = s->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
MKTAG('P', '0', '1', '0') : MKTAG('N', 'V', '1', '2');
D3DFORMAT target_format = 0;
DXVA2_VideoDesc desc = { 0 };
DXVA2_ConfigPictureDecode config;
HRESULT hr;
int surface_alignment, num_surfaces;
int ret;
AVDXVA2FramesContext *frames_hwctx;
AVHWFramesContext *frames_ctx;
hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
goto fail;
}
for (i = 0; dxva2_modes[i].guid; i++) {
D3DFORMAT *target_list = NULL;
unsigned target_count = 0;
const dxva2_mode *mode = &dxva2_modes[i];
if (mode->codec != s->codec_id)
continue;
for (j = 0; j < guid_count; j++) {
if (IsEqualGUID(mode->guid, &guid_list[j]))
break;
}
if (j == guid_count)
continue;
hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
if (FAILED(hr)) {
continue;
}
for (j = 0; j < target_count; j++) {
const D3DFORMAT format = target_list[j];
if (format == surface_format) {
target_format = format;
break;
}
}
CoTaskMemFree(target_list);
if (target_format) {
device_guid = *mode->guid;
break;
}
}
CoTaskMemFree(guid_list);
if (IsEqualGUID(&device_guid, &GUID_NULL)) {
av_log(NULL, loglevel, "No decoder device for codec found\n");
goto fail;
}
desc.SampleWidth = s->coded_width;
desc.SampleHeight = s->coded_height;
desc.Format = target_format;
ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
if (ret < 0) {
goto fail;
}
/* decoding MPEG-2 requires additional alignment on some Intel GPUs,
but it causes issues for H.264 on certain AMD GPUs..... */
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
surface_alignment = 32;
/* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
all coding features have enough room to work with */
else if (s->codec_id == AV_CODEC_ID_HEVC)
surface_alignment = 128;
else
surface_alignment = 16;
/* 4 base work surfaces */
num_surfaces = 4;
/* add surfaces based on number of possible refs */
if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
num_surfaces += 16;
else
num_surfaces += 2;
/* add extra surfaces for frame threading */
if (s->active_thread_type & FF_THREAD_FRAME)
num_surfaces += s->thread_count;
ctx->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->hw_device_ctx);
if (!ctx->hw_frames_ctx)
goto fail;
frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
frames_hwctx = frames_ctx->hwctx;
frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
frames_ctx->sw_format = s->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
AV_PIX_FMT_P010 : AV_PIX_FMT_NV12;
frames_ctx->width = FFALIGN(s->coded_width, surface_alignment);
frames_ctx->height = FFALIGN(s->coded_height, surface_alignment);
frames_ctx->initial_pool_size = num_surfaces;
frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
if (ret < 0) {
av_log(NULL, loglevel, "Failed to initialize the HW frames context\n");
goto fail;
}
hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
&desc, &config, frames_hwctx->surfaces,
frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
goto fail;
}
ctx->decoder_guid = device_guid;
ctx->decoder_config = config;
dxva_ctx->cfg = &ctx->decoder_config;
dxva_ctx->decoder = frames_hwctx->decoder_to_release;
dxva_ctx->surface = frames_hwctx->surfaces;
dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
return 0;
fail:
av_buffer_unref(&ctx->hw_frames_ctx);
return AVERROR(EINVAL);
}