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d3d12decoder: Use sub-allocated bitstream buffer

Browse source 
Since a buffer resource will occupy at least 64KB,
allocating upload resource per decoding command might not be
an optimal approach. Instead, use sub-region of a upload resource
for multiple decoding command if sub-regions are not overlapped
each other.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7108>
This commit is contained in:
Seungha Yang 2024-06-27 22:58:12 +09:00
parent 60454336c8
commit c013e88295
4 changed files with 678 additions and 93 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

110
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decoder.cpp
View file

@ -22,6 +22,7 @@
#endif
#include "gstd3d12decoder.h"
#include "gstd3d12decodercpbpool.h"
#include <directx/d3dx12.h>
#include <gst/base/gstqueuearray.h>
#include <wrl.h>
@ -225,14 +226,12 @@ struct DecoderCmdData
~DecoderCmdData ()
{
CloseHandle (event_handle);
gst_clear_object (&ca_pool);
}
ComPtr<ID3D12Device> device;
ComPtr<ID3D12VideoDevice> video_device;
ComPtr<ID3D12VideoDecodeCommandList> cl;
GstD3D12CommandQueue *queue = nullptr;
GstD3D12CommandAllocatorPool *ca_pool = nullptr;
bool need_full_drain = false;
/* Fence to wait at command record thread */
@ -277,6 +276,7 @@ struct DecoderSessionData
gst_video_codec_state_unref (output_state);
gst_vec_deque_free (output_queue);
gst_clear_object (&cpb_pool);
}
D3D12_VIDEO_DECODER_DESC decoder_desc = {};
@ -294,6 +294,8 @@ struct DecoderSessionData
/* Used for output if reference-only texture is required */
GstBufferPool *output_pool = nullptr;
GstD3D12DecoderCpbPool *cpb_pool = nullptr;
GstVideoCodecState *input_state = nullptr;
GstVideoCodecState *output_state = nullptr;
@ -446,9 +448,6 @@ gst_d3d12_decoder_open (GstD3D12Decoder * decoder, GstElement * element)
return FALSE;
}
cmd->ca_pool = gst_d3d12_command_allocator_pool_new (cmd->device.Get (),
D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE);
auto flags = gst_d3d12_device_get_workaround_flags (decoder->device);
if ((flags & GST_D3D12_WA_DECODER_RACE) == GST_D3D12_WA_DECODER_RACE)
cmd->need_full_drain = true;
@ -586,6 +585,7 @@ gst_d3d12_decoder_configure (GstD3D12Decoder * decoder,
session->coded_height = coded_height;
session->dpb_size = dpb_size;
session->decoder_format = device_format.dxgi_format;
session->cpb_pool = gst_d3d12_decoder_cpb_pool_new (priv->cmd->device.Get ());
if (crop_x != 0 || crop_y != 0)
session->need_crop = true;
@ -994,73 +994,6 @@ gst_d3d12_decoder_start_picture (GstD3D12Decoder * decoder,
return GST_FLOW_OK;
}
struct DecoderBitstream
{
ComPtr < ID3D12Resource > bitstream;
gsize bitstream_size = 0;
};
static void
bitstream_free_func (DecoderBitstream * buffer)
{
if (buffer)
delete buffer;
}
static gboolean
gst_d3d12_decoder_upload_bitstream (GstD3D12Decoder * self, gpointer data,
gsize size, GstD3D12CommandAllocator * cmd)
{
auto priv = self->priv;
HRESULT hr;
auto buffer = (DecoderBitstream *)
gst_d3d12_command_allocator_get_user_data (cmd);
if (!buffer || buffer->bitstream_size < size) {
buffer = new DecoderBitstream ();
gst_d3d12_command_allocator_set_user_data (cmd, buffer,
(GDestroyNotify) bitstream_free_func);
}
if (!buffer->bitstream) {
ComPtr < ID3D12Resource > bitstream;
size_t alloc_size = GST_ROUND_UP_128 (size) + 1024;
D3D12_HEAP_PROPERTIES heap_prop =
CD3DX12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_UPLOAD);
D3D12_RESOURCE_DESC desc = CD3DX12_RESOURCE_DESC::Buffer (alloc_size);
hr = priv->cmd->device->CreateCommittedResource (&heap_prop,
D3D12_HEAP_FLAG_CREATE_NOT_ZEROED, &desc,
D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS (&bitstream));
if (!gst_d3d12_result (hr, self->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);
buffer->bitstream = bitstream;
buffer->bitstream_size = alloc_size;
}
gpointer map_data;
D3D12_RANGE zero_range = { 0, 0 };
hr = buffer->bitstream->Map (0, &zero_range, &map_data);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't map bitstream buffer");
return FALSE;
}
memcpy (map_data, data, size);
D3D12_RANGE range = { 0, size };
buffer->bitstream->Unmap (0, &range);
return TRUE;
}
GstFlowReturn
gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
GstCodecPicture * picture, GPtrArray * ref_pics,
@ -1102,31 +1035,23 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
(GThreadFunc) gst_d3d12_decoder_output_loop, decoder);
}
GstD3D12CommandAllocator *gst_ca;
if (!gst_d3d12_command_allocator_pool_acquire (priv->cmd->ca_pool, &gst_ca)) {
GST_ERROR_OBJECT (decoder, "Couldn't acquire command allocator");
GstD3D12DecoderCpb *cpb;
hr = gst_d3d12_decoder_cpb_pool_acquire (priv->session->cpb_pool,
args->bitstream, args->bitstream_size, &cpb);
if (!gst_d3d12_result (hr, decoder->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't upload bitstream");
return GST_FLOW_ERROR;
}
if (!gst_d3d12_decoder_upload_bitstream (decoder, args->bitstream,
args->bitstream_size, gst_ca)) {
gst_d3d12_command_allocator_unref (gst_ca);
return GST_FLOW_ERROR;
}
auto bitstream = (DecoderBitstream *)
gst_d3d12_command_allocator_get_user_data (gst_ca);
g_assert (bitstream);
memset (&in_args, 0, sizeof (D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS));
memset (&out_args, 0, sizeof (D3D12_VIDEO_DECODE_OUTPUT_STREAM_ARGUMENTS));
GstD3D12DeviceDecoderLockGuard dlk (decoder->device);
auto ca = gst_d3d12_command_allocator_get_handle (gst_ca);
auto ca = gst_d3d12_decoder_cpb_get_command_allocator (cpb);
hr = ca->Reset ();
if (!gst_d3d12_result (hr, decoder->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't reset command allocator");
gst_d3d12_command_allocator_unref (gst_ca);
gst_d3d12_decoder_cpb_unref (cpb);
return GST_FLOW_ERROR;
}
@ -1140,7 +1065,7 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
if (!gst_d3d12_result (hr, decoder->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't configure command list");
gst_d3d12_command_allocator_unref (gst_ca);
gst_d3d12_decoder_cpb_unref (cpb);
return GST_FLOW_ERROR;
}
@ -1274,8 +1199,7 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
in_args.NumFrameArguments++;
}
in_args.CompressedBitstream.pBuffer = bitstream->bitstream.Get ();
in_args.CompressedBitstream.Offset = 0;
gst_d3d12_decoder_cpb_get_bitstream (cpb, &in_args.CompressedBitstream);
in_args.CompressedBitstream.Size = args->bitstream_size;
in_args.pHeap = decoder_pic->heap.Get ();
@ -1293,7 +1217,7 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
if (!gst_d3d12_result (hr, decoder->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't record decoding command");
gst_d3d12_command_allocator_unref (gst_ca);
gst_d3d12_decoder_cpb_unref (cpb);
return GST_FLOW_ERROR;
}
@ -1303,7 +1227,7 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
1, cl, &priv->cmd->fence_val);
if (!gst_d3d12_result (hr, decoder->device)) {
GST_ERROR_OBJECT (decoder, "Couldn't execute command list");
gst_d3d12_command_allocator_unref (gst_ca);
gst_d3d12_decoder_cpb_unref (cpb);
return GST_FLOW_ERROR;
}
@ -1318,7 +1242,7 @@ gst_d3d12_decoder_end_picture (GstD3D12Decoder * decoder,
gst_d3d12_fence_data_push (fence_data,
FENCE_NOTIFY_MINI_OBJECT (gst_codec_picture_ref (ref_pic)));
}
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_MINI_OBJECT (gst_ca));
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_MINI_OBJECT (cpb));
gst_d3d12_command_queue_set_notify (priv->cmd->queue, priv->cmd->fence_val,
fence_data, (GDestroyNotify) gst_d3d12_fence_data_unref);

608
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decodercpbpool.cpp Normal file
View file

@ -0,0 +1,608 @@
/* GStreamer
* Copyright (C) 2024 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 "gstd3d12decodercpbpool.h"
#include <gst/d3d12/gstd3d12-private.h>
#include <directx/d3dx12.h>
#include <wrl.h>
#include <mutex>
#include <memory>
#include <vector>
#include <queue>
#include <iterator>
#include <algorithm>
#include <string>
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_decoder_cpb_pool_debug);
#define GST_CAT_DEFAULT gst_d3d12_decoder_cpb_pool_debug
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
struct AllocBlock
{
AllocBlock() = delete;
explicit AllocBlock (UINT64 offset, UINT64 size)
: offset_(offset), size_(size) {}
AllocBlock (const AllocBlock & other)
: offset_(other.offset_), size_(other.size_) {}
AllocBlock (AllocBlock && other)
: offset_(other.offset_), size_(other.size_) {}
AllocBlock& operator=(const AllocBlock & other)
{
offset_ = other.offset_;
size_ = other.size_;
return *this;
}
UINT64 offset_ = 0;
UINT64 size_ = 0;
};
struct DecoderBuffer
{
DecoderBuffer() = delete;
explicit DecoderBuffer (ID3D12Resource * resource, UINT64 size,
guint8 * mapped_data, UINT64 id, const gchar * debug_name)
{
resource_ = resource;
mapped_data_ = mapped_data;
alloc_vec_.emplace_back (0, size);
largest_block_ = size;
alloc_size_ = size;
id_ = id;
if (debug_name)
debug_name_ = debug_name;
GST_DEBUG_ID (debug_name_.c_str (), "Create new buffer[%"
G_GUINT64_FORMAT "], size: %" G_GUINT64_FORMAT, id_, alloc_size_);
}
~DecoderBuffer ()
{
GST_DEBUG_ID (debug_name_.c_str (), "Releasing buffer[%"
G_GUINT64_FORMAT "], size: %" G_GUINT64_FORMAT, id_, alloc_size_);
}
bool HasSpace (UINT64 size)
{
if (largest_block_ >= size)
return true;
return false;
}
bool IsUnused ()
{
if (alloc_vec_.size () == 1 && alloc_vec_[0].size_ == alloc_size_)
return true;
return false;
}
void InsertBs (const D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM & bs)
{
if (bs.Size == 0)
return;
g_assert (bs.Offset + bs.Size <= alloc_size_);
#ifndef GST_DISABLE_GST_DEBUG
if (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >= GST_LEVEL_TRACE) {
auto it = alloc_vec_.cbegin ();
guint i = 0;
while (it != alloc_vec_.cend ()) {
GST_TRACE_ID (debug_name_.c_str (), "BeforeInsert[%u], Offset: %"
G_GUINT64_FORMAT ", Size: %" G_GSIZE_FORMAT, i,
it->offset_, it->size_);
it++;
i++;
}
}
#endif
if (largest_block_ < bs.Size)
largest_block_ = bs.Size;
if (alloc_vec_.empty ()) {
alloc_vec_.emplace_back (bs.Offset, bs.Size);
GST_TRACE_ID (debug_name_.c_str (),
"[%" G_GUINT64_FORMAT "] pushed to empty array", id_);
return;
}
auto new_block = AllocBlock (bs.Offset, bs.Size);
auto end_offset = bs.Offset + bs.Size;
auto it = alloc_vec_.insert (std::lower_bound (alloc_vec_.begin (),
alloc_vec_.end (), new_block), new_block);
auto next = std::next (it);
if (it == alloc_vec_.begin ()) {
/* Check if we can merge this block with the next block */
bool merged = false;
if (next != alloc_vec_.end () && next->offset_ == end_offset) {
/* contiguous, do merge */
merged = true;
it->size_ += next->size_;
if (largest_block_ < it->size_)
largest_block_ = it->size_;
alloc_vec_.erase (next);
}
GST_TRACE_ID (debug_name_.c_str (),
"InsertedPos: begin, MergeNext: %d", merged);
} else if (next == alloc_vec_.end ()) {
/* This is the last element, and not the first element.
* Check if this block can be merged with previous one */
auto prev = std::prev (it);
bool merged = false;
if (prev->offset_ + prev->size_ == it->offset_) {
/* contiguous, do merge */
merged = true;
prev->size_ += it->size_;
if (largest_block_ < prev->size_)
largest_block_ = prev->size_;
alloc_vec_.erase (it);
}
GST_TRACE_ID (debug_name_.c_str (),
"InsertedPos: end, MergePrev: %d", merged);
} else {
/* Checks if we can merge new block with prev and/or next */
auto prev = std::prev (it);
bool merge_prev = false;
bool merge_next = false;
if (prev->offset_ + prev->size_ == it->offset_) {
/* contiguous, do merge */
merge_prev = true;
prev->size_ += it->size_;
if (largest_block_ < prev->size_)
largest_block_ = prev->size_;
next = alloc_vec_.erase (it);
it = prev;
}
if (next->offset_ == end_offset) {
/* contiguous, do merge */
merge_next = true;
it->size_ += next->size_;
if (largest_block_ < it->size_)
largest_block_ = it->size_;
alloc_vec_.erase (next);
}
GST_TRACE_ID (debug_name_.c_str (),
"InsertedPos: end, MergePrev: %d, MergeNext", merge_prev,
merge_next);
}
#ifndef GST_DISABLE_GST_DEBUG
if (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >= GST_LEVEL_TRACE) {
auto it = alloc_vec_.cbegin ();
guint i = 0;
while (it != alloc_vec_.cend ()) {
GST_TRACE_ID (debug_name_.c_str (), "AfterInsert[%u], Offset: %"
G_GUINT64_FORMAT ", Size: %" G_GUINT64_FORMAT, i,
it->offset_, it->size_);
it++;
i++;
}
}
#endif
}
bool PopBs (UINT64 size, D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM & bs)
{
if (!HasSpace (size))
return false;
auto it = alloc_vec_.begin ();
bool found = false;
largest_block_ = 0;
/* Extracts allocation block and updates largest block size after
* extracted */
while (it != alloc_vec_.end ()) {
if (!found) {
if (it->size_ >= size) {
bs.pBuffer = resource_.Get ();
bs.Offset = it->offset_;
bs.Size = size;
if (it->size_ == size) {
it = alloc_vec_.erase (it);
} else {
it->offset_ += size;
it->size_ -= size;
if (largest_block_ < it->size_)
largest_block_ = it->size_;
it++;
}
found = true;
continue;
}
}
if (largest_block_ < it->size_)
largest_block_ = it->size_;
it++;
}
g_assert (found);
return true;
}
ComPtr<ID3D12Resource> resource_;
std::vector<AllocBlock> alloc_vec_;
UINT64 largest_block_;
UINT64 alloc_size_;
guint8 *mapped_data_;
UINT64 id_;
std::string debug_name_;
};
struct _GstD3D12DecoderCpb : public GstMiniObject
{
GstD3D12DecoderCpbPool *pool = nullptr;
std::shared_ptr<DecoderBuffer> buffer;
ComPtr<ID3D12CommandAllocator> ca;
D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM bs = { };
};
bool operator<(const AllocBlock & a, const AllocBlock & b)
{
return a.offset_ < b.offset_;
}
bool operator<(const std::shared_ptr<DecoderBuffer> & a,
const std::shared_ptr<DecoderBuffer> & b)
{
return a->alloc_size_ < b->alloc_size_;
}
struct GstD3D12DecoderCpbPoolPrivate
{
~GstD3D12DecoderCpbPoolPrivate ()
{
while (!cpb_pool.empty ()) {
auto cpb = cpb_pool.front ();
cpb_pool.pop ();
gst_mini_object_unref (cpb);
}
buffer_pool.clear ();
}
ComPtr<ID3D12Device> device;
std::vector<std::shared_ptr<DecoderBuffer>> buffer_pool;
std::queue<GstD3D12DecoderCpb *> cpb_pool;
UINT64 buffer_id = 0;
UINT64 max_alloc_size = 0;
guint allocated_ca_size = 0;
std::mutex lock;
};
struct _GstD3D12DecoderCpbPool
{
GstObject parent;
GstD3D12Device *device;
GstD3D12DecoderCpbPoolPrivate *priv;
};
/* *INDENT-ON* */
GST_DEFINE_MINI_OBJECT_TYPE (GstD3D12DecoderCpb, gst_d3d12_decoder_cpb);
static void gst_d3d12_decoder_cpb_pool_finalize (GObject * object);
#define gst_d3d12_decoder_cpb_pool_parent_class parent_class
G_DEFINE_TYPE (GstD3D12DecoderCpbPool,
gst_d3d12_decoder_cpb_pool, GST_TYPE_OBJECT);
static void
gst_d3d12_decoder_cpb_pool_class_init (GstD3D12DecoderCpbPoolClass * klass)
{
auto object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_d3d12_decoder_cpb_pool_finalize;
GST_DEBUG_CATEGORY_INIT (gst_d3d12_decoder_cpb_pool_debug,
"d3d12decodercpbpool", 0, "d3d12decodercpbpool");
}
static void
gst_d3d12_decoder_cpb_pool_init (GstD3D12DecoderCpbPool * self)
{
self->priv = new GstD3D12DecoderCpbPoolPrivate ();
}
static void
gst_d3d12_decoder_cpb_pool_finalize (GObject * object)
{
auto self = GST_D3D12_DECODER_CPB_POOL (object);
delete self->priv;
gst_clear_object (&self->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
GstD3D12DecoderCpbPool *
gst_d3d12_decoder_cpb_pool_new (ID3D12Device * device)
{
g_return_val_if_fail (device, nullptr);
auto self = (GstD3D12DecoderCpbPool *)
g_object_new (GST_TYPE_D3D12_DECODER_CPB_POOL, nullptr);
gst_object_ref_sink (self);
auto priv = self->priv;
priv->device = device;
return self;
}
/* *INDENT-OFF* */
static void
gst_d3d12_decoder_cpb_pool_release (GstD3D12DecoderCpbPool * pool,
GstD3D12DecoderCpb * cpb)
{
auto priv = pool->priv;
{
std::lock_guard < std::mutex > lk (priv->lock);
GST_LOG_OBJECT (pool, "Releasing cpb, bitstream %p, Offset: %"
G_GUINT64_FORMAT ", Size %" G_GUINT64_FORMAT,
cpb->bs.pBuffer, cpb->bs.Offset, cpb->bs.Size);
cpb->dispose = nullptr;
cpb->pool = nullptr;
if (cpb->buffer) {
cpb->buffer->InsertBs (cpb->bs);
#ifndef GST_DISABLE_GST_DEBUG
const auto & buffer = cpb->buffer;
GST_TRACE_OBJECT (pool, "Buffer[%" G_GUINT64_FORMAT "] status, "
"alloc-size %" G_GUINT64_FORMAT ", num-free-blocks %"
G_GSIZE_FORMAT ", largest-block-size %" G_GUINT64_FORMAT,
buffer->id_, buffer->alloc_size_, buffer->alloc_vec_.size (),
buffer->largest_block_);
#endif
}
cpb->buffer = nullptr;
priv->cpb_pool.push (cpb);
}
gst_object_unref (pool);
}
/* *INDENT-ON* */
static gboolean
gst_d3d12_decoder_cpb_dispose (GstD3D12DecoderCpb * cpb)
{
if (!cpb->pool)
return TRUE;
gst_mini_object_ref (cpb);
gst_d3d12_decoder_cpb_pool_release (cpb->pool, cpb);
return FALSE;
}
static void
gst_d3d12_decoder_cpb_free (GstD3D12DecoderCpb * cpb)
{
delete cpb;
}
#define ROUND_UP_N(num,align) \
(((((UINT64) num) + (((UINT64) align) - 1)) & ~(((UINT64) align) - 1)))
/* *INDENT-OFF* */
HRESULT
gst_d3d12_decoder_cpb_pool_acquire (GstD3D12DecoderCpbPool * pool,
gpointer data, gsize size, GstD3D12DecoderCpb ** cpb)
{
g_return_val_if_fail (GST_IS_D3D12_DECODER_CPB_POOL (pool), E_INVALIDARG);
g_return_val_if_fail (data, E_INVALIDARG);
g_return_val_if_fail (size > 0, E_INVALIDARG);
auto priv = pool->priv;
std::shared_ptr<DecoderBuffer> buffer;
UINT64 aligned_size = ROUND_UP_N (size,
D3D12_VIDEO_DECODE_MIN_BITSTREAM_OFFSET_ALIGNMENT);
GST_DEBUG_OBJECT (pool, "Uploading bitstream, size: %" G_GSIZE_FORMAT
", aligned-size %" G_GUINT64_FORMAT, size, aligned_size);
std::unique_lock < std::mutex > lk (priv->lock);
/* buffers are sorted in increasing size order. Try to find available
* blocks from largest buffer, in order to release unused small
* buffers efficiently */
for (auto it = priv->buffer_pool.rbegin ();
it != priv->buffer_pool.rend(); it++) {
auto & tmp = *it;
if (tmp->HasSpace (aligned_size)) {
GST_DEBUG_OBJECT (pool, "Buffer[%" G_GUINT64_FORMAT "] has space",
tmp->id_);
buffer = tmp;
break;
}
}
if (!buffer) {
UINT64 alloc_size = ROUND_UP_N (aligned_size,
D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT);
alloc_size = MAX (alloc_size, priv->max_alloc_size);
D3D12_HEAP_PROPERTIES heap_prop =
CD3DX12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_UPLOAD);
D3D12_RESOURCE_DESC desc = CD3DX12_RESOURCE_DESC::Buffer (alloc_size);
ComPtr < ID3D12Resource > resource;
GST_DEBUG_OBJECT (pool, "Allocating new buffer, size %" G_GUINT64_FORMAT,
alloc_size);
auto hr = priv->device->CreateCommittedResource (&heap_prop,
D3D12_HEAP_FLAG_CREATE_NOT_ZEROED, &desc,
D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS (&resource));
if (FAILED (hr)) {
GST_ERROR_OBJECT (pool, "Couldn't allocate upload resource");
return hr;
}
D3D12_RANGE range;
range.Begin = 0;
range.End = 0;
guint8 *mapped_data;
hr = resource->Map (0, &range, (void **) &mapped_data);
if (FAILED (hr)) {
GST_ERROR_OBJECT (pool, "Couldn't map resource");
return hr;
}
buffer = std::make_shared<DecoderBuffer> (resource.Get (), desc.Width,
mapped_data, priv->buffer_id, GST_OBJECT_NAME (pool));
priv->buffer_id++;
priv->buffer_pool.insert (std::lower_bound (priv->buffer_pool.begin (),
priv->buffer_pool.end (), buffer), buffer);
priv->max_alloc_size = alloc_size;
}
GstD3D12DecoderCpb *ret = nullptr;
if (!priv->cpb_pool.empty ()) {
ret = priv->cpb_pool.front ();
priv->cpb_pool.pop ();
} else {
ComPtr<ID3D12CommandAllocator> ca;
auto hr = priv->device->CreateCommandAllocator (
D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE, IID_PPV_ARGS (&ca));
if (FAILED (hr)) {
GST_ERROR_OBJECT (pool, "Couldn't create command allocator");
return hr;
}
ret = new GstD3D12DecoderCpb ();
gst_mini_object_init (ret, 0, gst_d3d12_decoder_cpb_get_type (),
nullptr, nullptr, (GstMiniObjectFreeFunction) gst_d3d12_decoder_cpb_free);
ret->ca = ca;
priv->allocated_ca_size++;
}
auto pop_ret = buffer->PopBs (aligned_size, ret->bs);
g_assert (pop_ret);
/* Release unused buffers */
if (priv->buffer_pool.size () > priv->allocated_ca_size) {
auto it = priv->buffer_pool.begin ();
while (it != priv->buffer_pool.end () &&
priv->buffer_pool.size () > priv->allocated_ca_size) {
auto tmp = *it;
if (tmp == buffer || !tmp->IsUnused ()) {
it++;
continue;
}
GST_DEBUG_OBJECT (pool, "Releasing unused buffer[%" G_GUINT64_FORMAT
"], Size: %" G_GUINT64_FORMAT, tmp->id_, tmp->alloc_size_);
it = priv->buffer_pool.erase (it);
}
}
#ifndef GST_DISABLE_GST_DEBUG
if (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >= GST_LEVEL_TRACE) {
GST_TRACE_OBJECT (pool, "Total num-buffers: %" G_GSIZE_FORMAT
", Buffer[%" G_GUINT64_FORMAT "] status, "
"alloc-size %" G_GUINT64_FORMAT ", num-free-blocks %"
G_GSIZE_FORMAT ", largest-block-size %" G_GUINT64_FORMAT
", popped-offset: %" G_GUINT64_FORMAT ", popped-size %"
G_GUINT64_FORMAT, priv->buffer_pool.size (),
buffer->id_, buffer->alloc_size_, buffer->alloc_vec_.size (),
buffer->largest_block_, ret->bs.Offset, ret->bs.Size);
auto it = buffer->alloc_vec_.cbegin ();
guint i = 0;
while (it != buffer->alloc_vec_.cend ()) {
GST_TRACE_OBJECT (pool, "Remaining[%u] Offset: %" G_GUINT64_FORMAT
", Size: %" G_GSIZE_FORMAT, i, it->offset_, it->size_);
it++;
i++;
}
}
#endif
lk.unlock ();
memcpy (buffer->mapped_data_ + ret->bs.Offset, data, size);
ret->pool = (GstD3D12DecoderCpbPool *) gst_object_ref (pool);
ret->dispose = (GstMiniObjectDisposeFunction) gst_d3d12_decoder_cpb_dispose;
ret->buffer = buffer;
*cpb = ret;
return S_OK;
}
/* *INDENT-ON* */
GstD3D12DecoderCpb *
gst_d3d12_decoder_cpb_ref (GstD3D12DecoderCpb * cpb)
{
return (GstD3D12DecoderCpb *) gst_mini_object_ref (cpb);
}
void
gst_d3d12_decoder_cpb_unref (GstD3D12DecoderCpb * cpb)
{
gst_mini_object_unref (cpb);
}
gboolean
gst_d3d12_decoder_cpb_get_bitstream (GstD3D12DecoderCpb * cpb,
D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM * bs)
{
g_return_val_if_fail (cpb, FALSE);
g_return_val_if_fail (bs, FALSE);
*bs = cpb->bs;
return TRUE;
}
ID3D12CommandAllocator *
gst_d3d12_decoder_cpb_get_command_allocator (GstD3D12DecoderCpb * cpb)
{
g_return_val_if_fail (cpb, nullptr);
return cpb->ca.Get ();
}

52
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12decodercpbpool.h Normal file
View file

@ -0,0 +1,52 @@
/* GStreamer
* Copyright (C) 2024 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.
*/
#pragma once
#include <gst/gst.h>
#include <gst/d3d12/gstd3d12.h>
G_BEGIN_DECLS
#define GST_TYPE_D3D12_DECODER_CPB_POOL (gst_d3d12_decoder_cpb_pool_get_type())
G_DECLARE_FINAL_TYPE (GstD3D12DecoderCpbPool,
gst_d3d12_decoder_cpb_pool, GST, D3D12_DECODER_CPB_POOL, GstObject);
typedef struct _GstD3D12DecoderCpb GstD3D12DecoderCpb;
GType gst_d3d12_decoder_cpb_get_type (void);
GstD3D12DecoderCpbPool * gst_d3d12_decoder_cpb_pool_new (ID3D12Device * device);
HRESULT gst_d3d12_decoder_cpb_pool_acquire (GstD3D12DecoderCpbPool * pool,
gpointer data,
gsize size,
GstD3D12DecoderCpb ** cpb);
GstD3D12DecoderCpb * gst_d3d12_decoder_cpb_ref (GstD3D12DecoderCpb * cpb);
void gst_d3d12_decoder_cpb_unref (GstD3D12DecoderCpb * cpb);
gboolean gst_d3d12_decoder_cpb_get_bitstream (GstD3D12DecoderCpb * cpb,
D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM * bs);
ID3D12CommandAllocator * gst_d3d12_decoder_cpb_get_command_allocator (GstD3D12DecoderCpb * cpb);
G_END_DECLS

1
subprojects/gst-plugins-bad/sys/d3d12/meson.build
View file

@ -4,6 +4,7 @@ d3d12_sources = [
'gstd3d12compositor.cpp',
'gstd3d12convert.cpp',
'gstd3d12decoder.cpp',
'gstd3d12decodercpbpool.cpp',
'gstd3d12download.cpp',
'gstd3d12dpbstorage.cpp',
'gstd3d12dxgicapture.cpp',