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gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decoder.cpp
Seungha Yang 734dd50879 d3d12: Add H.264 decoder 
Adding Direct3D12 h264 decoder

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4161>
2023-09-17 18:53:24 +09:00

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstd3d12decoder.h"
#include "gstd3d12device.h"
#include "gstd3d12utils.h"
#include "gstd3d12format.h"
#include "gstd3d12memory.h"
#include "gstd3d12fence.h"
#include <wrl.h>
#include <string.h>
#include <mutex>
#include <set>
#include <vector>
#include <queue>
#include <string>
#include <vector>
#include <memory>
#include <atomic>
GST_DEBUG_CATEGORY_EXTERN (gst_d3d12_decoder_debug);
#define GST_CAT_DEFAULT gst_d3d12_decoder_debug
struct DecoderFormat
{
GstDxvaCodec codec;
const GUID decode_profile;
DXGI_FORMAT format;
};
static const DecoderFormat format_list[] = {
{GST_DXVA_CODEC_H264, D3D12_VIDEO_DECODE_PROFILE_H264, DXGI_FORMAT_NV12}
};
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
class GstD3D12Dpb
{
public:
GstD3D12Dpb (guint8 size) : size_(size)
{
textures_.resize (size);
subresources_.resize (size);
heaps_.resize (size);
for (guint i = 0; i < size; i++) {
dxva_id_.push (i);
textures_[i] = nullptr;
subresources_[i] = 0;
heaps_[i] = nullptr;
}
}
guint8 Acquire (GstD3D12Memory * mem, ID3D12VideoDecoderHeap * heap)
{
std::lock_guard <std::mutex> lk (lock_);
if (dxva_id_.empty ())
return 0xff;
guint8 ret = dxva_id_.front ();
dxva_id_.pop ();
GstD3D12Memory *dmem;
ID3D12Resource *resource;
UINT subresource = 0;
dmem = GST_D3D12_MEMORY_CAST (mem);
resource = gst_d3d12_memory_get_resource_handle (dmem);
gst_d3d12_memory_get_subresource_index (dmem, 0, &subresource);
textures_[ret] = resource;
subresources_[ret] = subresource;
heaps_[ret] = heap;
return ret;
}
void Release (guint8 id)
{
std::lock_guard <std::mutex> lk (lock_);
if (id == 0xff || id >= size_)
return;
dxva_id_.push (id);
textures_[id] = nullptr;
subresources_[id] = 0;
heaps_[id] = nullptr;
}
guint8 GetSize ()
{
return size_;
}
ID3D12Resource ** GetTextures ()
{
return &textures_[0];
}
UINT * GetSubresources ()
{
return &subresources_[0];
}
ID3D12VideoDecoderHeap ** GetHeaps ()
{
return &heaps_[0];
}
private:
std::queue<guint8> dxva_id_;
std::mutex lock_;
guint size_;
std::vector<ID3D12Resource *> textures_;
std::vector<UINT> subresources_;
std::vector<ID3D12VideoDecoderHeap *> heaps_;
};
struct GstD3D12DecoderPicture : public GstMiniObject
{
GstD3D12DecoderPicture (GstMemory * dpb_mem, GstMemory * out_mem,
std::shared_ptr<GstD3D12Dpb> d3d12_dpb,
ID3D12VideoDecoderHeap * decoder_heap, guint8 dxva_id)
: mem(dpb_mem), output_mem(out_mem), dpb(d3d12_dpb), heap(decoder_heap)
, view_id(dxva_id)
{
}
~GstD3D12DecoderPicture ()
{
auto d3d12_dpb = dpb.lock ();
if (d3d12_dpb)
d3d12_dpb->Release (view_id);
if (mem)
gst_memory_unref (mem);
if (output_mem)
gst_memory_unref (output_mem);
}
GstMemory *mem;
GstMemory *output_mem;
ComPtr<ID3D12VideoDecoderHeap> heap;
std::weak_ptr<GstD3D12Dpb> dpb;
guint8 view_id;
};
#define GST_TYPE_D3D12_DECODER_PICTURE (gst_d3d12_decoder_picture_get_type ())
GST_DEFINE_MINI_OBJECT_TYPE (GstD3D12DecoderPicture, gst_d3d12_decoder_picture);
struct GstD3D12DecoderPrivate
{
GstD3D12DecoderPrivate ()
{
fence_value = 1;
}
~GstD3D12DecoderPrivate()
{
if (input_state)
gst_video_codec_state_unref (input_state);
if (output_state)
gst_video_codec_state_unref (output_state);
if (fence) {
gst_d3d12_fence_wait (fence);
gst_d3d12_fence_unref (fence);
}
if (allocator) {
gst_d3d12_allocator_set_active (allocator, FALSE);
gst_object_unref (allocator);
}
if (output_allocator) {
gst_d3d12_allocator_set_active (output_allocator, FALSE);
gst_object_unref (output_allocator);
}
if (device)
gst_object_unref (device);
}
GstD3D12Device *device = nullptr;
GstDxvaCodec codec = GST_DXVA_CODEC_NONE;
/* Allocator for dpb textures */
GstD3D12Allocator *allocator = nullptr;
/* Used for output */
GstD3D12Allocator *output_allocator = nullptr;
gboolean configured = FALSE;
gboolean opened = FALSE;
GstVideoInfo info;
GstVideoInfo output_info;
gint crop_x = 0;
gint crop_y = 0;
gint coded_width = 0;
gint coded_height = 0;
DXGI_FORMAT decoder_format = DXGI_FORMAT_UNKNOWN;
gboolean reference_only = FALSE;
D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT support = { 0, };
/* For staging */
D3D12_PLACED_SUBRESOURCE_FOOTPRINT layout[GST_VIDEO_MAX_PLANES] = { 0, };
GstVideoCodecState *input_state = nullptr;
GstVideoCodecState *output_state = nullptr;
/* Internal pool params */
gint aligned_width = 0;
gint aligned_height = 0;
guint dpb_size = 0;
ComPtr<ID3D12VideoDevice> video_device;
ComPtr<ID3D12VideoDecoder> decoder;
ComPtr<ID3D12VideoDecoderHeap> heap;
ComPtr<ID3D12CommandAllocator> ca;
ComPtr<ID3D12VideoDecodeCommandList> cl;
ComPtr<ID3D12CommandQueue> cq;
ComPtr<ID3D12Resource> bitstream;
gsize bitstream_size = 0;
std::shared_ptr<GstD3D12Dpb> dpb;
/* Used for download decoded picture to staging */
ComPtr<ID3D12CommandAllocator> copy_ca;
ComPtr<ID3D12GraphicsCommandList> copy_cl;
ComPtr<ID3D12CommandQueue> copy_cq;
ComPtr<ID3D12Resource> staging;
GstD3D12Fence *fence = nullptr;
std::atomic<UINT64> fence_value;
gint64 luid;
std::mutex lock;
};
/* *INDENT-ON* */
struct _GstD3D12Decoder
{
GstObject parent;
GstD3D12DecoderPrivate *priv;
};
static void gst_d3d12_decoder_finalize (GObject * object);
#define parent_class gst_d3d12_decoder_parent_class
G_DEFINE_TYPE (GstD3D12Decoder, gst_d3d12_decoder, GST_TYPE_OBJECT);
static void
gst_d3d12_decoder_class_init (GstD3D12DecoderClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gst_d3d12_decoder_finalize;
}
static void
gst_d3d12_decoder_init (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv;
self->priv = priv = new GstD3D12DecoderPrivate ();
}
static void
gst_d3d12_decoder_finalize (GObject * object)
{
GstD3D12Decoder *self = GST_D3D12_DECODER (object);
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d12_decoder_clear_resource (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv = self->priv;
std::lock_guard < std::mutex > lk (priv->lock);
gst_d3d12_fence_wait (priv->fence);
if (priv->allocator) {
gst_d3d12_allocator_set_active (priv->allocator, FALSE);
gst_clear_object (&priv->allocator);
}
if (priv->output_allocator) {
gst_d3d12_allocator_set_active (priv->output_allocator, FALSE);
gst_clear_object (&priv->output_allocator);
}
priv->heap = nullptr;
priv->staging = nullptr;
}
static void
gst_d3d12_decoder_reset (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv = self->priv;
gst_d3d12_decoder_clear_resource (self);
priv->dpb_size = 0;
priv->configured = FALSE;
priv->opened = FALSE;
g_clear_pointer (&priv->output_state, gst_video_codec_state_unref);
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
}
GstD3D12Decoder *
gst_d3d12_decoder_new (GstD3D12Device * device, GstDxvaCodec codec)
{
GstD3D12Decoder *self;
GstD3D12DecoderPrivate *priv;
ComPtr < ID3D12VideoDevice > video_device;
ComPtr < ID3D12CommandAllocator > copy_ca;
ComPtr < ID3D12GraphicsCommandList > copy_cl;
ComPtr < ID3D12CommandQueue > copy_cq;
ComPtr < ID3D12CommandAllocator > ca;
ComPtr < ID3D12VideoDecodeCommandList > cl;
ComPtr < ID3D12CommandQueue > cq;
ID3D12Device *device_handle;
D3D12_COMMAND_QUEUE_DESC desc = { };
HRESULT hr;
g_return_val_if_fail (GST_IS_D3D12_DEVICE (device), nullptr);
g_return_val_if_fail (codec > GST_DXVA_CODEC_NONE, nullptr);
g_return_val_if_fail (codec < GST_DXVA_CODEC_LAST, nullptr);
device_handle = gst_d3d12_device_get_device_handle (device);
hr = device_handle->QueryInterface (IID_PPV_ARGS (&video_device));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = device_handle->CreateCommandAllocator (D3D12_COMMAND_LIST_TYPE_COPY,
IID_PPV_ARGS (&copy_ca));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = device_handle->CreateCommandList (0, D3D12_COMMAND_LIST_TYPE_COPY,
copy_ca.Get (), nullptr, IID_PPV_ARGS (&copy_cl));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = copy_cl->Close ();
if (!gst_d3d12_result (hr, device))
return nullptr;
desc.Type = D3D12_COMMAND_LIST_TYPE_COPY;
desc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
hr = device_handle->CreateCommandQueue (&desc, IID_PPV_ARGS (&copy_cq));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = device_handle->CreateCommandAllocator
(D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE, IID_PPV_ARGS (&ca));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = device_handle->CreateCommandList (0,
D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE, ca.Get (), nullptr,
IID_PPV_ARGS (&cl));
if (!gst_d3d12_result (hr, device))
return nullptr;
hr = cl->Close ();
if (!gst_d3d12_result (hr, device))
return nullptr;
desc.Type = D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE;
desc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
hr = device_handle->CreateCommandQueue (&desc, IID_PPV_ARGS (&cq));
if (!gst_d3d12_result (hr, device))
return nullptr;
self = (GstD3D12Decoder *) g_object_new (GST_TYPE_D3D12_DECODER, nullptr);
priv = self->priv;
priv->codec = codec;
priv->device = (GstD3D12Device *) gst_object_ref (device);
priv->fence = gst_d3d12_fence_new (device);
priv->video_device = video_device;
priv->copy_ca = copy_ca;
priv->copy_cl = copy_cl;
priv->copy_cq = copy_cq;
priv->ca = ca;
priv->cl = cl;
priv->cq = cq;
g_object_get (priv->device, "adapter-luid", &priv->luid, nullptr);
gst_object_ref_sink (self);
return self;
}
GstFlowReturn
gst_d3d12_decoder_configure (GstD3D12Decoder * decoder,
GstVideoCodecState * input_state, const GstVideoInfo * info,
gint crop_x, gint crop_y, gint coded_width,
gint coded_height, guint dpb_size)
{
g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), GST_FLOW_ERROR);
g_return_val_if_fail (info, GST_FLOW_ERROR);
g_return_val_if_fail (input_state, GST_FLOW_ERROR);
g_return_val_if_fail (coded_width >= GST_VIDEO_INFO_WIDTH (info),
GST_FLOW_ERROR);
g_return_val_if_fail (coded_height >= GST_VIDEO_INFO_HEIGHT (info),
GST_FLOW_ERROR);
g_return_val_if_fail (dpb_size > 0, GST_FLOW_ERROR);
GstD3D12DecoderPrivate *priv = decoder->priv;
GstD3D12Format device_format;
gst_d3d12_decoder_reset (decoder);
if (!gst_d3d12_device_get_device_format (priv->device,
GST_VIDEO_INFO_FORMAT (info), &device_format) ||
device_format.dxgi_format == DXGI_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (decoder, "Could not determine dxgi format from %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
return GST_FLOW_ERROR;
}
if (priv->codec == GST_DXVA_CODEC_H264)
dpb_size += 1;
priv->input_state = gst_video_codec_state_ref (input_state);
priv->info = priv->output_info = *info;
priv->crop_x = crop_x;
priv->crop_y = crop_y;
priv->coded_width = coded_width;
priv->coded_height = coded_height;
priv->dpb_size = dpb_size;
priv->decoder_format = device_format.dxgi_format;
priv->configured = TRUE;
return GST_FLOW_OK;
}
static gboolean
gst_d3d12_decoder_prepare_allocator (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv = self->priv;
GST_DEBUG_OBJECT (self, "Preparing allocator");
std::lock_guard < std::mutex > lk (priv->lock);
if (priv->allocator) {
gst_d3d12_allocator_set_active (priv->allocator, FALSE);
gst_clear_object (&priv->allocator);
}
if (priv->output_allocator) {
gst_d3d12_allocator_set_active (priv->output_allocator, FALSE);
gst_clear_object (&priv->output_allocator);
}
D3D12_RESOURCE_FLAGS resource_flags = D3D12_RESOURCE_FLAG_NONE;
if ((priv->support.ConfigurationFlags &
D3D12_VIDEO_DECODE_CONFIGURATION_FLAG_REFERENCE_ONLY_ALLOCATIONS_REQUIRED)
!= 0) {
resource_flags =
D3D12_RESOURCE_FLAG_VIDEO_DECODE_REFERENCE_ONLY |
D3D12_RESOURCE_FLAG_DENY_SHADER_RESOURCE;
priv->reference_only = TRUE;
} else {
priv->reference_only = FALSE;
}
UINT16 array_size;
/* Tier 1 decoder requires array */
if (priv->support.DecodeTier == D3D12_VIDEO_DECODE_TIER_1) {
array_size = priv->dpb_size;
} else {
array_size = 1;
}
D3D12_HEAP_PROPERTIES heap_prop =
CD3D12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_DEFAULT);
D3D12_RESOURCE_DESC desc = CD3D12_RESOURCE_DESC::Tex2D (priv->decoder_format,
priv->aligned_width,
priv->aligned_height,
array_size,
1,
1,
0,
resource_flags);
priv->allocator = (GstD3D12Allocator *)
gst_d3d12_pool_allocator_new (priv->device,
&heap_prop, D3D12_HEAP_FLAG_NONE,
&desc, D3D12_RESOURCE_STATE_COMMON, nullptr);
gst_d3d12_allocator_set_active (priv->allocator, TRUE);
/* In case that device requires reference only dpb texture, we need another
* texture pool for outputting without VIDEO_DECODE_REFERENCE_ONLY flag */
if (priv->reference_only) {
GST_DEBUG_OBJECT (self, "Creating output only allocator");
D3D12_RESOURCE_DESC ref_desc =
CD3D12_RESOURCE_DESC::Tex2D (priv->decoder_format,
priv->aligned_width,
priv->aligned_height,
1,
1);
priv->output_allocator = (GstD3D12Allocator *)
gst_d3d12_pool_allocator_new (priv->device, &heap_prop,
D3D12_HEAP_FLAG_NONE, &ref_desc, D3D12_RESOURCE_STATE_COMMON, nullptr);
gst_d3d12_allocator_set_active (priv->output_allocator, TRUE);
}
priv->dpb = std::make_shared < GstD3D12Dpb > ((guint8) priv->dpb_size);
return TRUE;
}
static void
gst_d3d12_decoder_picture_free (GstD3D12DecoderPicture * self)
{
delete self;
}
static GstD3D12DecoderPicture *
gst_d3d12_decoder_picture_new (GstD3D12Decoder * self, GstMemory * mem,
GstMemory * output_mem, ID3D12VideoDecoderHeap * heap)
{
GstD3D12DecoderPrivate *priv = self->priv;
GstD3D12DecoderPicture *picture;
auto view_id = priv->dpb->Acquire (GST_D3D12_MEMORY_CAST (mem), heap);
if (view_id == 0xff) {
GST_WARNING_OBJECT (self, "No empty picture");
if (mem)
gst_memory_unref (mem);
if (output_mem)
gst_memory_unref (output_mem);
return nullptr;
}
picture = new GstD3D12DecoderPicture (mem, output_mem, priv->dpb, heap,
view_id);
gst_mini_object_init (picture, 0, GST_TYPE_D3D12_DECODER_PICTURE,
nullptr, nullptr,
(GstMiniObjectFreeFunction) gst_d3d12_decoder_picture_free);
return picture;
}
GstFlowReturn
gst_d3d12_decoder_new_picture (GstD3D12Decoder * decoder,
GstVideoDecoder * videodec, GstCodecPicture * picture)
{
GstD3D12DecoderPrivate *priv;
GstD3D12DecoderPicture *decoder_pic = nullptr;
GstMemory *mem;
GstMemory *output_mem = nullptr;
GstFlowReturn ret;
g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), GST_FLOW_ERROR);
g_return_val_if_fail (picture != nullptr, GST_FLOW_ERROR);
priv = decoder->priv;
if (!priv->allocator) {
/* Try negotiate again whatever the previous negotiation result was.
* There could be updated field(s) in sinkpad caps after we negotiated with
* downstream on new_sequence() call. For example, h264/h265 parse
* will be able to update HDR10 related caps field after parsing
* corresponding SEI messages which are usually placed after the essential
* headers */
gst_video_decoder_negotiate (videodec);
if (!gst_d3d12_decoder_prepare_allocator (decoder)) {
GST_ERROR_OBJECT (videodec, "Failed to setup dpb pool");
return GST_FLOW_ERROR;
}
}
ret =
gst_d3d12_pool_allocator_acquire_memory (GST_D3D12_POOL_ALLOCATOR
(priv->allocator), &mem);
if (ret != GST_FLOW_OK) {
GST_WARNING_OBJECT (videodec, "Couldn't acquire memory");
return ret;
}
if (priv->reference_only) {
ret =
gst_d3d12_pool_allocator_acquire_memory (GST_D3D12_POOL_ALLOCATOR
(priv->output_allocator), &output_mem);
if (ret != GST_FLOW_OK) {
GST_WARNING_OBJECT (videodec, "Couldn't acquire output memory");
gst_memory_unref (mem);
return ret;
}
}
decoder_pic = gst_d3d12_decoder_picture_new (decoder, mem, output_mem,
priv->heap.Get ());
if (!decoder_pic) {
GST_ERROR_OBJECT (videodec, "Couldn't create new picture");
return GST_FLOW_ERROR;
}
gst_codec_picture_set_user_data (picture, decoder_pic,
(GDestroyNotify) gst_mini_object_unref);
return GST_FLOW_OK;
}
GstFlowReturn
gst_d3d12_decoder_duplicate_picture (GstD3D12Decoder * decoder,
GstCodecPicture * src, GstCodecPicture * dst)
{
GstD3D12DecoderPicture *decoder_pic =
(GstD3D12DecoderPicture *) gst_codec_picture_get_user_data (src);
if (!decoder_pic)
return GST_FLOW_ERROR;
gst_codec_picture_set_user_data (dst, gst_mini_object_ref (decoder_pic),
(GDestroyNotify) gst_mini_object_unref);
return GST_FLOW_OK;
}
guint8
gst_d3d12_decoder_get_picture_id (GstD3D12Decoder * decoder,
GstCodecPicture * picture)
{
GstD3D12DecoderPicture *decoder_pic =
(GstD3D12DecoderPicture *) gst_codec_picture_get_user_data (picture);
if (!picture)
return 0xff;
return decoder_pic->view_id;
}
GstFlowReturn
gst_d3d12_decoder_start_picture (GstD3D12Decoder * decoder,
GstCodecPicture * picture, guint8 * picture_id)
{
GstD3D12DecoderPicture *decoder_pic =
(GstD3D12DecoderPicture *) gst_codec_picture_get_user_data (picture);
if (picture_id)
*picture_id = 0xff;
if (!decoder_pic)
return GST_FLOW_ERROR;
if (picture_id)
*picture_id = decoder_pic->view_id;
return GST_FLOW_OK;
}
static gboolean
gst_d3d12_decoder_upload_bitstream (GstD3D12Decoder * self, gpointer data,
gsize size)
{
GstD3D12DecoderPrivate *priv = self->priv;
gpointer map_data;
HRESULT hr;
if (priv->bitstream && priv->bitstream_size < size)
priv->bitstream = nullptr;
if (!priv->bitstream) {
ID3D12Device *device_handle =
gst_d3d12_device_get_device_handle (priv->device);
ComPtr < ID3D12Resource > bitstream;
size_t alloc_size = GST_ROUND_UP_128 (size) + 1024;
D3D12_HEAP_PROPERTIES heap_prop =
CD3D12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_UPLOAD);
D3D12_RESOURCE_DESC desc = CD3D12_RESOURCE_DESC::Buffer (alloc_size);
hr = device_handle->CreateCommittedResource (&heap_prop,
D3D12_HEAP_FLAG_NONE, &desc,
D3D12_RESOURCE_STATE_COMMON, nullptr, IID_PPV_ARGS (&bitstream));
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "Failed to create bitstream buffer");
return FALSE;
}
GST_LOG_OBJECT (self, "Allocated new bitstream buffer with size %"
G_GSIZE_FORMAT, size);
priv->bitstream = bitstream;
priv->bitstream_size = alloc_size;
}
hr = priv->bitstream->Map (0, nullptr, &map_data);
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "Couldn't map bitstream buffer");
return FALSE;
}
memcpy (map_data, data, size);
priv->bitstream->Unmap (0, nullptr);
return TRUE;
}
GstFlowReturn
gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
GstCodecPicture * picture, GPtrArray * ref_pics,
const GstDxvaDecodingArgs * args)
{
GstD3D12DecoderPrivate *priv = decoder->priv;
HRESULT hr;
D3D12_VIDEO_DECODE_OUTPUT_STREAM_ARGUMENTS out_args;
D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS in_args;
ID3D12Resource *resource;
ID3D12Resource *out_resource = nullptr;
GstD3D12Memory *dmem;
UINT subresource[2];
GstD3D12DecoderPicture *decoder_pic = (GstD3D12DecoderPicture *)
gst_codec_picture_get_user_data (picture);
UINT64 fence_value;
ID3D12Fence *fence_handle;
std::vector < D3D12_RESOURCE_BARRIER > pre_barriers;
std::vector < D3D12_RESOURCE_BARRIER > post_barriers;
if (!decoder_pic) {
GST_ERROR_OBJECT (decoder, "No attached decoder picture");
return GST_FLOW_ERROR;
}
if (!args->bitstream || args->bitstream_size == 0) {
GST_ERROR_OBJECT (decoder, "No bitstream buffer passed");
return GST_FLOW_ERROR;
}
/* Wait for previous fence if needed */
gst_d3d12_fence_wait (priv->fence);
if (!gst_d3d12_decoder_upload_bitstream (decoder, args->bitstream,
args->bitstream_size)) {
return GST_FLOW_ERROR;
}
memset (&in_args, 0, sizeof (D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS));
memset (&out_args, 0, sizeof (D3D12_VIDEO_DECODE_OUTPUT_STREAM_ARGUMENTS));
hr = priv->ca->Reset ();
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't reset command allocator");
return GST_FLOW_ERROR;
}
hr = priv->cl->Reset (priv->ca.Get ());
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't reset command list");
return GST_FLOW_ERROR;
}
for (guint i = 0; i < ref_pics->len; i++) {
GstCodecPicture *ref_pic =
(GstCodecPicture *) g_ptr_array_index (ref_pics, i);
GstD3D12DecoderPicture *ref_dec_pic =
(GstD3D12DecoderPicture *) gst_codec_picture_get_user_data (ref_pic);
if (!ref_dec_pic || ref_dec_pic == decoder_pic)
continue;
dmem = (GstD3D12Memory *) ref_dec_pic->mem;
resource = gst_d3d12_memory_get_resource_handle (dmem);
gst_d3d12_memory_get_subresource_index (dmem, 0, &subresource[0]);
gst_d3d12_memory_get_subresource_index (dmem, 1, &subresource[1]);
pre_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_DECODE_READ,
subresource[0]));
pre_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_DECODE_READ,
subresource[1]));
post_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_VIDEO_DECODE_READ, D3D12_RESOURCE_STATE_COMMON,
subresource[0]));
post_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_VIDEO_DECODE_READ, D3D12_RESOURCE_STATE_COMMON,
subresource[1]));
}
dmem = (GstD3D12Memory *) decoder_pic->output_mem;
if (dmem) {
out_resource = gst_d3d12_memory_get_resource_handle (dmem);
pre_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (out_resource,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE));
post_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (out_resource,
D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
}
dmem = (GstD3D12Memory *) decoder_pic->mem;
resource = gst_d3d12_memory_get_resource_handle (dmem);
gst_d3d12_memory_get_subresource_index (GST_D3D12_MEMORY_CAST (dmem), 0,
&subresource[0]);
gst_d3d12_memory_get_subresource_index (GST_D3D12_MEMORY_CAST (dmem), 1,
&subresource[1]);
pre_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE,
subresource[0]));
pre_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE,
subresource[1]));
post_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE, D3D12_RESOURCE_STATE_COMMON,
subresource[0]));
post_barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_VIDEO_DECODE_WRITE, D3D12_RESOURCE_STATE_COMMON,
subresource[1]));
priv->cl->ResourceBarrier (pre_barriers.size (), &pre_barriers[0]);
if (out_resource) {
out_args.pOutputTexture2D = out_resource;
out_args.OutputSubresource = 0;
out_args.ConversionArguments.Enable = TRUE;
out_args.ConversionArguments.pReferenceTexture2D = resource;
out_args.ConversionArguments.ReferenceSubresource = subresource[0];
} else {
out_args.pOutputTexture2D = resource;
out_args.OutputSubresource = subresource[0];
out_args.ConversionArguments.Enable = FALSE;
}
if (args->picture_params) {
in_args.FrameArguments[in_args.NumFrameArguments].Type =
D3D12_VIDEO_DECODE_ARGUMENT_TYPE_PICTURE_PARAMETERS;
in_args.FrameArguments[in_args.NumFrameArguments].Size =
args->picture_params_size;
in_args.FrameArguments[in_args.NumFrameArguments].pData =
args->picture_params;
in_args.NumFrameArguments++;
}
if (args->slice_control) {
in_args.FrameArguments[in_args.NumFrameArguments].Type =
D3D12_VIDEO_DECODE_ARGUMENT_TYPE_SLICE_CONTROL;
in_args.FrameArguments[in_args.NumFrameArguments].Size =
args->slice_control_size;
in_args.FrameArguments[in_args.NumFrameArguments].pData =
args->slice_control;
in_args.NumFrameArguments++;
}
if (args->inverse_quantization_matrix) {
in_args.FrameArguments[in_args.NumFrameArguments].Type =
D3D12_VIDEO_DECODE_ARGUMENT_TYPE_INVERSE_QUANTIZATION_MATRIX;
in_args.FrameArguments[in_args.NumFrameArguments].Size =
args->inverse_quantization_matrix_size;
in_args.FrameArguments[in_args.NumFrameArguments].pData =
args->inverse_quantization_matrix;
in_args.NumFrameArguments++;
}
in_args.CompressedBitstream.pBuffer = priv->bitstream.Get ();
in_args.CompressedBitstream.Offset = 0;
in_args.CompressedBitstream.Size = args->bitstream_size;
in_args.pHeap = decoder_pic->heap.Get ();
in_args.ReferenceFrames.NumTexture2Ds = priv->dpb->GetSize ();
in_args.ReferenceFrames.ppHeaps = priv->dpb->GetHeaps ();
in_args.ReferenceFrames.ppTexture2Ds = priv->dpb->GetTextures ();
in_args.ReferenceFrames.pSubresources = priv->dpb->GetSubresources ();
priv->cl->DecodeFrame (priv->decoder.Get (), &out_args, &in_args);
priv->cl->ResourceBarrier (post_barriers.size (), &post_barriers[0]);
hr = priv->cl->Close ();
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't record decoding command");
return GST_FLOW_ERROR;
}
ID3D12CommandList *cl[] = { priv->cl.Get () };
priv->cq->ExecuteCommandLists (1, cl);
fence_handle = gst_d3d12_fence_get_handle (priv->fence);
fence_value = priv->fence_value.fetch_add (1);
hr = priv->cq->Signal (fence_handle, fence_value);
if (!gst_d3d12_result (hr, priv->device)) {
GST_DEBUG_OBJECT (decoder, "Couldn't signal fence value");
return GST_FLOW_ERROR;
}
gst_d3d12_fence_set_event_on_completion_value (priv->fence, fence_value);
/* Will wait on output picture or start of next decoding loop */
return GST_FLOW_OK;
}
static gboolean
gst_d3d12_decoder_ensure_staging_texture (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv = self->priv;
if (priv->staging)
return TRUE;
ComPtr < ID3D12Resource > staging;
HRESULT hr;
UINT64 size;
ID3D12Device *device = gst_d3d12_device_get_device_handle (priv->device);
D3D12_RESOURCE_DESC tex_desc =
CD3D12_RESOURCE_DESC::Tex2D (priv->decoder_format,
priv->aligned_width,
priv->aligned_height,
1,
1);
device->GetCopyableFootprints (&tex_desc, 0, 2, 0, priv->layout, nullptr,
nullptr, &size);
D3D12_HEAP_PROPERTIES heap_prop = CD3D12_HEAP_PROPERTIES
(D3D12_HEAP_TYPE_READBACK);
D3D12_RESOURCE_DESC desc = CD3D12_RESOURCE_DESC::Buffer (size);
hr = device->CreateCommittedResource (&heap_prop, D3D12_HEAP_FLAG_NONE,
&desc, D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS (&staging));
if (!gst_d3d12_result (hr, priv->device))
return FALSE;
priv->staging = staging;
return TRUE;
}
GstFlowReturn
gst_d3d12_decoder_output_picture (GstD3D12Decoder * decoder,
GstVideoDecoder * videodec, GstVideoCodecFrame * frame,
GstCodecPicture * picture, GstVideoBufferFlags buffer_flags,
gint display_width, gint display_height)
{
GstD3D12DecoderPrivate *priv = decoder->priv;
GstD3D12DecoderPicture *decoder_pic;
std::vector < D3D12_RESOURCE_BARRIER > barriers;
GstFlowReturn ret = GST_FLOW_ERROR;
ID3D12CommandList *list[1];
UINT64 fence_value;
GstMemory *mem;
GstD3D12Memory *dmem;
ID3D12Resource *resource;
UINT subresource[2];
void *map_data;
HRESULT hr;
GstVideoFrame vframe;
g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), GST_FLOW_ERROR);
g_return_val_if_fail (picture != nullptr, GST_FLOW_ERROR);
priv = decoder->priv;
decoder_pic = (GstD3D12DecoderPicture *)
gst_codec_picture_get_user_data (picture);
if (!decoder_pic) {
ret = GST_FLOW_ERROR;
goto error;
}
if (picture->discont_state) {
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
priv->input_state = gst_video_codec_state_ref (picture->discont_state);
if (!gst_video_decoder_negotiate (videodec)) {
GST_ERROR_OBJECT (videodec, "Failed to re-negotiate with new frame size");
ret = GST_FLOW_NOT_NEGOTIATED;
goto error;
}
}
ret = gst_video_decoder_allocate_output_frame (videodec, frame);
if (ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (videodec, "Couldn't allocate output buffer");
goto error;
}
if (!gst_d3d12_decoder_ensure_staging_texture (decoder)) {
GST_ERROR_OBJECT (videodec, "Couldn't allocate staging texture");
ret = GST_FLOW_ERROR;
goto error;
}
/* Wait for pending decoding operation before copying */
gst_d3d12_fence_wait (priv->fence);
mem = decoder_pic->output_mem ? decoder_pic->output_mem : decoder_pic->mem;
dmem = GST_D3D12_MEMORY_CAST (mem);
resource = gst_d3d12_memory_get_resource_handle (dmem);
gst_d3d12_memory_get_subresource_index (dmem, 0, &subresource[0]);
gst_d3d12_memory_get_subresource_index (dmem, 1, &subresource[1]);
/* Copy texture to staging */
hr = priv->copy_ca->Reset ();
if (!gst_d3d12_result (hr, priv->device)) {
ret = GST_FLOW_ERROR;
goto error;
}
hr = priv->copy_cl->Reset (priv->copy_ca.Get (), nullptr);
if (!gst_d3d12_result (hr, priv->device)) {
ret = GST_FLOW_ERROR;
goto error;
}
barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_COPY_SOURCE,
subresource[0]));
barriers.push_back (CD3D12_RESOURCE_BARRIER::Transition (resource,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_COPY_SOURCE,
subresource[1]));
priv->copy_cl->ResourceBarrier (barriers.size (), &barriers[0]);
for (guint i = 0; i < 2; i++) {
D3D12_TEXTURE_COPY_LOCATION src =
CD3D12_TEXTURE_COPY_LOCATION (resource, subresource[i]);
D3D12_TEXTURE_COPY_LOCATION dst =
CD3D12_TEXTURE_COPY_LOCATION (priv->staging.Get (), priv->layout[i]);
D3D12_BOX src_box = { 0, };
/* FIXME: only 4:2:0 */
if (i == 0) {
src_box.left = GST_ROUND_UP_2 (priv->crop_x);
src_box.top = GST_ROUND_UP_2 (priv->crop_y);
src_box.right = GST_ROUND_UP_2 (priv->crop_x + priv->output_info.width);
src_box.bottom = GST_ROUND_UP_2 (priv->crop_y + priv->output_info.height);
} else {
src_box.left = GST_ROUND_UP_2 (priv->crop_x) / 2;
src_box.top = GST_ROUND_UP_2 (priv->crop_y) / 2;
src_box.right =
GST_ROUND_UP_2 (priv->crop_x + priv->output_info.width) / 2;
src_box.bottom =
GST_ROUND_UP_2 (priv->crop_y + priv->output_info.height) / 2;
}
src_box.front = 0;
src_box.back = 1;
priv->copy_cl->CopyTextureRegion (&dst, 0, 0, 0, &src, &src_box);
}
hr = priv->copy_cl->Close ();
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (videodec, "Couldn't record copy command");
ret = GST_FLOW_ERROR;
goto error;
}
list[0] = priv->copy_cl.Get ();
priv->copy_cq->ExecuteCommandLists (1, list);
fence_value = priv->fence_value.fetch_add (1);
hr = priv->copy_cq->Signal (gst_d3d12_fence_get_handle (priv->fence),
fence_value);
if (!gst_d3d12_result (hr, priv->device)) {
ret = GST_FLOW_ERROR;
goto error;
}
gst_d3d12_fence_set_event_on_completion_value (priv->fence, fence_value);
gst_d3d12_fence_wait (priv->fence);
hr = priv->staging->Map (0, nullptr, &map_data);
if (!gst_d3d12_result (hr, priv->device)) {
ret = GST_FLOW_ERROR;
goto error;
}
gst_video_frame_map (&vframe,
&priv->output_info, frame->output_buffer, GST_MAP_WRITE);
for (guint i = 0; i < GST_VIDEO_FRAME_N_PLANES (&vframe); i++) {
guint8 *src = (guint8 *) map_data + priv->layout[i].Offset;
guint8 *dst = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&vframe, i);
gint width = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&vframe, i);
for (guint j = 0; j < GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, i); j++) {
memcpy (dst, src, width);
dst += GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, i);
src += priv->layout[i].Footprint.RowPitch;
}
}
priv->staging->Unmap (0, nullptr);
gst_video_frame_unmap (&vframe);
gst_codec_picture_unref (picture);
return gst_video_decoder_finish_frame (videodec, frame);
error:
gst_codec_picture_unref (picture);
gst_video_decoder_release_frame (videodec, frame);
return ret;
}
static gboolean
gst_d3d12_decoder_open (GstD3D12Decoder * self)
{
GstD3D12DecoderPrivate *priv = self->priv;
HRESULT hr;
gint aligned_width, aligned_height;
ID3D12VideoDevice *video_device;
GstVideoInfo *info = &priv->info;
D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT support;
ComPtr < ID3D12VideoDecoderHeap > heap;
if (priv->opened)
return TRUE;
if (!priv->configured) {
GST_ERROR_OBJECT (self, "Should configure first");
return FALSE;
}
video_device = priv->video_device.Get ();
const DecoderFormat *decoder_foramt = nullptr;
for (guint i = 0; i < G_N_ELEMENTS (format_list); i++) {
if (format_list[i].codec != priv->codec ||
format_list[i].format != priv->decoder_format) {
continue;
}
D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT s;
s.NodeIndex = 0;
s.Configuration.DecodeProfile = format_list[i].decode_profile;
s.Configuration.BitstreamEncryption = D3D12_BITSTREAM_ENCRYPTION_TYPE_NONE;
if (GST_VIDEO_INFO_IS_INTERLACED (info) &&
GST_VIDEO_INFO_INTERLACE_MODE (info) !=
GST_VIDEO_INTERLACE_MODE_ALTERNATE) {
s.Configuration.InterlaceType =
D3D12_VIDEO_FRAME_CODED_INTERLACE_TYPE_FIELD_BASED;
} else {
s.Configuration.InterlaceType =
D3D12_VIDEO_FRAME_CODED_INTERLACE_TYPE_NONE;
}
s.DecodeFormat = priv->decoder_format;
s.FrameRate = { 0, 1 };
s.BitRate = 0;
s.Width = priv->coded_width;
s.Height = priv->coded_height;
hr = video_device->CheckFeatureSupport (D3D12_FEATURE_VIDEO_DECODE_SUPPORT,
&s, sizeof (D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT));
if (FAILED (hr))
continue;
if ((s.SupportFlags & D3D12_VIDEO_DECODE_SUPPORT_FLAG_SUPPORTED) == 0) {
GST_INFO_OBJECT (self, "Device doesn't support current configuration");
continue;
}
decoder_foramt = &format_list[i];
support = s;
GST_INFO_OBJECT (self,
"Created decoder support tier %d with configuration flags 0x%x",
support.DecodeTier, support.ConfigurationFlags);
break;
}
if (!decoder_foramt) {
GST_WARNING_OBJECT (self, "Failed to find supported configuration");
return FALSE;
}
guint alignment = 16;
if ((support.ConfigurationFlags &
D3D12_VIDEO_DECODE_CONFIGURATION_FLAG_HEIGHT_ALIGNMENT_MULTIPLE_32_REQUIRED)
!= 0) {
alignment = 32;
}
aligned_width = GST_ROUND_UP_N (priv->coded_width, alignment);
aligned_height = GST_ROUND_UP_N (priv->coded_height, alignment);
priv->aligned_width = aligned_width;
priv->aligned_height = aligned_height;
/* We can reuse decoder object, which is resolution independent */
if (!priv->decoder ||
priv->support.Configuration.DecodeProfile !=
support.Configuration.DecodeProfile
|| priv->support.Configuration.InterlaceType !=
support.Configuration.InterlaceType) {
ComPtr < ID3D12VideoDecoder > decoder;
priv->decoder = nullptr;
D3D12_VIDEO_DECODER_DESC desc;
desc.NodeMask = 0;
desc.Configuration = support.Configuration;
hr = video_device->CreateVideoDecoder (&desc, IID_PPV_ARGS (&decoder));
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "Failed to create decoder");
return FALSE;
}
priv->decoder = decoder;
}
D3D12_VIDEO_DECODER_HEAP_DESC heap_desc;
heap_desc.NodeMask = 0;
heap_desc.Configuration = support.Configuration;
heap_desc.DecodeWidth = priv->aligned_width;
heap_desc.DecodeHeight = priv->aligned_height;
heap_desc.Format = priv->decoder_format;
heap_desc.FrameRate = { 0, 1 };
heap_desc.BitRate = 0;
heap_desc.MaxDecodePictureBufferCount = priv->dpb_size;
hr = video_device->CreateVideoDecoderHeap (&heap_desc, IID_PPV_ARGS (&heap));
if (!gst_d3d12_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "Failed to create decoder heap");
return FALSE;
}
priv->heap = heap;
priv->support = support;
priv->opened = TRUE;
return TRUE;
}
gboolean
gst_d3d12_decoder_negotiate (GstD3D12Decoder * decoder,
GstVideoDecoder * videodec)
{
g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), FALSE);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), FALSE);
GstD3D12DecoderPrivate *priv = decoder->priv;
GstVideoInfo *info = &priv->output_info;
GstVideoCodecState *state = nullptr;
GstVideoCodecState *input_state = priv->input_state;
GstStructure *s;
const gchar *str;
/* TODO: add support alternate interlace */
state = gst_video_decoder_set_interlaced_output_state (videodec,
GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_INTERLACE_MODE (info),
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), input_state);
if (!state) {
GST_ERROR_OBJECT (decoder, "Couldn't set output state");
return FALSE;
}
state->caps = gst_video_info_to_caps (&state->info);
s = gst_caps_get_structure (input_state->caps, 0);
str = gst_structure_get_string (s, "mastering-display-info");
if (str) {
gst_caps_set_simple (state->caps,
"mastering-display-info", G_TYPE_STRING, str, nullptr);
}
str = gst_structure_get_string (s, "content-light-level");
if (str) {
gst_caps_set_simple (state->caps,
"content-light-level", G_TYPE_STRING, str, nullptr);
}
g_clear_pointer (&priv->output_state, gst_video_codec_state_unref);
priv->output_state = state;
return gst_d3d12_decoder_open (decoder);
}
gboolean
gst_d3d12_decoder_decide_allocation (GstD3D12Decoder * decoder,
GstVideoDecoder * videodec, GstQuery * query)
{
GstD3D12DecoderPrivate *priv = decoder->priv;
GstCaps *outcaps;
GstBufferPool *pool = nullptr;
guint n, size, min = 0, max = 0;
GstVideoInfo vinfo = { 0, };
GstStructure *config;
g_return_val_if_fail (GST_IS_D3D12_DECODER (decoder), FALSE);
g_return_val_if_fail (GST_IS_VIDEO_DECODER (videodec), FALSE);
g_return_val_if_fail (query != nullptr, FALSE);
if (!priv->opened) {
GST_ERROR_OBJECT (videodec, "Should open decoder first");
return FALSE;
}
gst_query_parse_allocation (query, &outcaps, nullptr);
if (!outcaps) {
GST_DEBUG_OBJECT (decoder, "No output caps");
return FALSE;
}
gst_video_info_from_caps (&vinfo, outcaps);
n = gst_query_get_n_allocation_pools (query);
if (n > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (!pool) {
pool = gst_video_buffer_pool_new ();
size = (guint) vinfo.size;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (n > 0)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return TRUE;
}
enum
{
PROP_DECODER_ADAPTER_LUID = 1,
PROP_DECODER_DEVICE_ID,
PROP_DECODER_VENDOR_ID,
};
struct _GstD3D12DecoderClassData
{
GstD3D12DecoderSubClassData subclass_data;
GstCaps *sink_caps;
GstCaps *src_caps;
gchar *description;
};
GstD3D12DecoderClassData *
gst_d3d12_decoder_check_feature_support (GstD3D12Device * device,
ID3D12VideoDevice * video_device, GstDxvaCodec codec)
{
HRESULT hr;
GstDxvaResolution max_resolution = { 0, 0 };
D3D12_VIDEO_DECODE_CONFIGURATION_FLAGS config_flags =
D3D12_VIDEO_DECODE_CONFIGURATION_FLAG_NONE;
D3D12_VIDEO_DECODE_TIER tier = D3D12_VIDEO_DECODE_TIER_NOT_SUPPORTED;
std::set < DXGI_FORMAT > supported_formats;
g_return_val_if_fail (GST_IS_D3D12_DEVICE (device), nullptr);
g_return_val_if_fail (video_device != nullptr, nullptr);
for (guint i = 0; i < G_N_ELEMENTS (format_list); i++) {
if (format_list[i].codec != codec)
continue;
D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT s;
s.NodeIndex = 0;
s.Configuration.DecodeProfile = format_list[i].decode_profile;
s.Configuration.BitstreamEncryption = D3D12_BITSTREAM_ENCRYPTION_TYPE_NONE;
s.Configuration.InterlaceType = D3D12_VIDEO_FRAME_CODED_INTERLACE_TYPE_NONE;
s.DecodeFormat = format_list[i].format;
s.FrameRate = { 0, 1 };
s.BitRate = 0;
for (guint j = 0; j < G_N_ELEMENTS (gst_dxva_resolutions); j++) {
s.Width = gst_dxva_resolutions[j].width;
s.Height = gst_dxva_resolutions[j].height;
hr = video_device->CheckFeatureSupport
(D3D12_FEATURE_VIDEO_DECODE_SUPPORT, &s,
sizeof (D3D12_FEATURE_DATA_VIDEO_DECODE_SUPPORT));
if (FAILED (hr))
break;
if ((s.SupportFlags & D3D12_VIDEO_DECODE_SUPPORT_FLAG_SUPPORTED) == 0)
break;
if (max_resolution.width < gst_dxva_resolutions[j].width)
max_resolution.width = gst_dxva_resolutions[j].width;
if (max_resolution.height < gst_dxva_resolutions[j].height)
max_resolution.height = gst_dxva_resolutions[j].height;
supported_formats.insert (format_list[i].format);
config_flags = s.ConfigurationFlags;
tier = s.DecodeTier;
}
}
if (supported_formats.empty ()) {
GST_DEBUG_OBJECT (device, "Device doesn't support %s",
gst_dxva_codec_to_string (codec));
return nullptr;
}
GST_DEBUG_OBJECT (device,
"Device supports codec %s (%dx%d), configuration flags 0x%x, tier: %d",
gst_dxva_codec_to_string (codec),
max_resolution.width, max_resolution.height, config_flags, tier);
std::string format_string;
/* *INDENT-OFF* */
for (const auto &iter : supported_formats) {
GstVideoFormat format = gst_d3d12_dxgi_format_to_gst (iter);
if (format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (device,
"Failed to get video format from dxgi format %d", iter);
}
if (!format_string.empty ())
format_string += ", ";
format_string += gst_video_format_to_string (format);
}
/* *INDENT-ON* */
std::string src_caps_string;
/* TODO: support d3d12 memory */
src_caps_string = "video/x-raw, format = (string) ";
if (supported_formats.size () > 1) {
src_caps_string += "{ " + format_string + " }";
} else {
src_caps_string += format_string;
}
GstCaps *src_caps = gst_caps_from_string (src_caps_string.c_str ());
GstCaps *sink_caps;
switch (codec) {
case GST_DXVA_CODEC_H264:
sink_caps = gst_caps_from_string ("video/x-h264, "
"stream-format= (string) { avc, avc3, byte-stream }, "
"alignment= (string) au, "
"profile = (string) { high, progressive-high, constrained-high, main, "
"constrained-baseline, baseline }");
break;
default:
g_assert_not_reached ();
return nullptr;
}
gint max_res = MAX (max_resolution.width, max_resolution.height);
gst_caps_set_simple (sink_caps,
"width", GST_TYPE_INT_RANGE, 1, max_res,
"height", GST_TYPE_INT_RANGE, 1, max_res, nullptr);
gst_caps_set_simple (src_caps,
"width", GST_TYPE_INT_RANGE, 1, max_res,
"height", GST_TYPE_INT_RANGE, 1, max_res, nullptr);
GstD3D12DecoderClassData *ret = g_new0 (GstD3D12DecoderClassData, 1);
GstD3D12DecoderSubClassData *subclass_data = &ret->subclass_data;
ret->sink_caps = sink_caps;
ret->src_caps = src_caps;
subclass_data->codec = codec;
/* class data will be leaked if the element never gets instantiated */
GST_MINI_OBJECT_FLAG_SET (sink_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (src_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
g_object_get (device, "adapter-luid", &subclass_data->adapter_luid,
"device-id", &subclass_data->device_id, "vendor-id",
&subclass_data->vendor_id, "description", &ret->description, nullptr);
GST_DEBUG_OBJECT (device,
"Configured sink caps: %" GST_PTR_FORMAT ", src caps: %" GST_PTR_FORMAT,
sink_caps, src_caps);
return ret;
}
static void
gst_d3d12_decoder_class_data_free (GstD3D12DecoderClassData * data)
{
if (!data)
return;
gst_clear_caps (&data->sink_caps);
gst_clear_caps (&data->src_caps);
g_free (data->description);
g_free (data);
}
void
gst_d3d12_decoder_class_data_fill_subclass_data (GstD3D12DecoderClassData *
data, GstD3D12DecoderSubClassData * subclass_data)
{
g_return_if_fail (data != nullptr);
g_return_if_fail (subclass_data != nullptr);
*subclass_data = data->subclass_data;
}
void
gst_d3d12_decoder_proxy_class_init (GstElementClass * klass,
GstD3D12DecoderClassData * data, const gchar * author)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstD3D12DecoderSubClassData *cdata = &data->subclass_data;
std::string long_name;
std::string description;
const gchar *codec_name;
GParamFlags param_flags = (GParamFlags) (GST_PARAM_DOC_SHOW_DEFAULT |
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
GstPadTemplate *pad_templ;
g_object_class_install_property (gobject_class, PROP_DECODER_ADAPTER_LUID,
g_param_spec_int64 ("adapter-luid", "Adapter LUID",
"DXGI Adapter LUID (Locally Unique Identifier) of created device",
G_MININT64, G_MAXINT64, 0, param_flags));
g_object_class_install_property (gobject_class, PROP_DECODER_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0, param_flags));
g_object_class_install_property (gobject_class, PROP_DECODER_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0, param_flags));
codec_name = gst_dxva_codec_to_string (cdata->codec);
long_name = "Direct3D12/DXVA " + std::string (codec_name) + " " +
std::string (data->description) + " Decoder";
description = "Direct3D12/DXVA based " + std::string (codec_name) +
" video decoder";
gst_element_class_set_metadata (klass, long_name.c_str (),
"Codec/Decoder/Video/Hardware", description.c_str (), author);
pad_templ = gst_pad_template_new ("sink",
GST_PAD_SINK, GST_PAD_ALWAYS, data->sink_caps);
gst_element_class_add_pad_template (klass, pad_templ);
pad_templ = gst_pad_template_new ("src",
GST_PAD_SRC, GST_PAD_ALWAYS, data->src_caps);
gst_element_class_add_pad_template (klass, pad_templ);
gst_d3d12_decoder_class_data_free (data);
}
void
gst_d3d12_decoder_proxy_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec,
GstD3D12DecoderSubClassData * subclass_data)
{
switch (prop_id) {
case PROP_DECODER_ADAPTER_LUID:
g_value_set_int64 (value, subclass_data->adapter_luid);
break;
case PROP_DECODER_DEVICE_ID:
g_value_set_uint (value, subclass_data->device_id);
break;
case PROP_DECODER_VENDOR_ID:
g_value_set_uint (value, subclass_data->vendor_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
gboolean
gst_d3d12_decoder_proxy_open (GstVideoDecoder * videodec,
GstD3D12DecoderSubClassData * subclass_data, GstD3D12Device ** device,
GstD3D12Decoder ** decoder)
{
GstElement *elem = GST_ELEMENT (videodec);
if (!gst_d3d12_ensure_element_data_for_adapter_luid (elem,
subclass_data->adapter_luid, device)) {
GST_ERROR_OBJECT (elem, "Cannot create d3d12device");
return FALSE;
}
*decoder = gst_d3d12_decoder_new (*device, subclass_data->codec);
if (*decoder == nullptr) {
GST_ERROR_OBJECT (elem, "Cannot create d3d12 decoder");
gst_clear_object (device);
return FALSE;
}
return TRUE;
}
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