gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12encoderbufferpool.cpp

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/* GStreamer
* Copyright (C) 2024 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you cln 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 "gstd3d12encoderbufferpool.h"
#include <directx/d3dx12.h>
#include <wrl.h>
#include <queue>
#include <mutex>
#include <condition_variable>
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_encoder_buffer_pool_debug);
#define GST_CAT_DEFAULT gst_d3d12_encoder_buffer_pool_debug
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
struct _GstD3D12EncoderBuffer : public GstMiniObject
{
GstD3D12EncoderBufferPool *pool = nullptr;
ComPtr<ID3D12Resource> metadata;
ComPtr<ID3D12Resource> resolved_metadata;
ComPtr<ID3D12Resource> bitstream;
};
struct GstD3D12EncoderBufferPoolPrivate
{
~GstD3D12EncoderBufferPoolPrivate ()
{
while (!buffer_pool.empty ()) {
auto buf = buffer_pool.front ();
buffer_pool.pop ();
gst_mini_object_unref (buf);
}
}
ComPtr<ID3D12Device> device;
std::mutex lock;
std::condition_variable cond;
std::queue<GstD3D12EncoderBuffer *>buffer_pool;
guint metadata_size;
guint resolved_metadata_size;
guint bitstream_size;
guint pool_size;
};
/* *INDENT-ON* */
struct _GstD3D12EncoderBufferPool
{
GstObject parent;
GstD3D12EncoderBufferPoolPrivate *priv;
};
GST_DEFINE_MINI_OBJECT_TYPE (GstD3D12EncoderBuffer, gst_d3d12_encoder_buffer);
static void gst_d3d12_encoder_buffer_pool_finalize (GObject * object);
#define gst_d3d12_encoder_buffer_pool_parent_class parent_class
G_DEFINE_TYPE (GstD3D12EncoderBufferPool,
gst_d3d12_encoder_buffer_pool, GST_TYPE_OBJECT);
static void
gst_d3d12_encoder_buffer_pool_class_init (GstD3D12EncoderBufferPoolClass *
klass)
{
auto object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_d3d12_encoder_buffer_pool_finalize;
GST_DEBUG_CATEGORY_INIT (gst_d3d12_encoder_buffer_pool_debug,
"d3d12encoderbufferpool", 0, "d3d12encoderbufferpool");
}
static void
gst_d3d12_encoder_buffer_pool_init (GstD3D12EncoderBufferPool * self)
{
self->priv = new GstD3D12EncoderBufferPoolPrivate ();
}
static void
gst_d3d12_encoder_buffer_pool_finalize (GObject * object)
{
auto self = GST_D3D12_ENCODER_BUFFER_POOL (object);
GST_DEBUG_OBJECT (self, "Finalize");
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d12_encoder_buffer_free (GstD3D12EncoderBuffer * buffer)
{
delete buffer;
}
static GstD3D12EncoderBuffer *
gst_d3d12_encoder_buffer_pool_alloc (GstD3D12EncoderBufferPool * self)
{
auto priv = self->priv;
D3D12_HEAP_PROPERTIES prop =
CD3DX12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_DEFAULT);
D3D12_RESOURCE_DESC desc =
CD3DX12_RESOURCE_DESC::Buffer (priv->metadata_size);
ComPtr < ID3D12Resource > metadata;
auto hr = priv->device->CreateCommittedResource (&prop,
D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_COMMON,
nullptr, IID_PPV_ARGS (&metadata));
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "Couldn't metadata buffer, hr: 0x%x", (guint) hr);
return nullptr;
}
prop = CD3DX12_HEAP_PROPERTIES (D3D12_CPU_PAGE_PROPERTY_WRITE_BACK,
D3D12_MEMORY_POOL_L0);
desc = CD3DX12_RESOURCE_DESC::Buffer (priv->resolved_metadata_size);
ComPtr < ID3D12Resource > resolved_metadata;
hr = priv->device->CreateCommittedResource (&prop,
D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_COMMON,
nullptr, IID_PPV_ARGS (&resolved_metadata));
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "Couldn't metadata buffer, hr: 0x%x", (guint) hr);
return nullptr;
}
desc = CD3DX12_RESOURCE_DESC::Buffer (priv->bitstream_size);
ComPtr < ID3D12Resource > bitstream;
hr = priv->device->CreateCommittedResource (&prop,
D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_COMMON,
nullptr, IID_PPV_ARGS (&bitstream));
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "Couldn't metadata buffer, hr: 0x%x", (guint) hr);
return nullptr;
}
auto new_buf = new GstD3D12EncoderBuffer ();
gst_mini_object_init (new_buf, 0, gst_d3d12_encoder_buffer_get_type (),
nullptr, nullptr,
(GstMiniObjectFreeFunction) gst_d3d12_encoder_buffer_free);
new_buf->metadata = metadata;
new_buf->resolved_metadata = resolved_metadata;
new_buf->bitstream = bitstream;
return new_buf;
}
GstD3D12EncoderBufferPool *
gst_d3d12_encoder_buffer_pool_new (GstD3D12Device * device,
guint metadata_size, guint resolved_metadata_size, guint bitstream_size,
guint pool_size)
{
g_return_val_if_fail (GST_IS_D3D12_DEVICE (device), nullptr);
auto self = (GstD3D12EncoderBufferPool *)
g_object_new (GST_TYPE_D3D12_ENCODER_BUFFER_POOL, nullptr);
gst_object_ref_sink (self);
auto priv = self->priv;
priv->device = gst_d3d12_device_get_device_handle (device);;
priv->metadata_size = metadata_size;
priv->resolved_metadata_size = resolved_metadata_size;
priv->bitstream_size = bitstream_size;
priv->pool_size = pool_size;
for (guint i = 0; i < pool_size; i++) {
auto new_buf = gst_d3d12_encoder_buffer_pool_alloc (self);
if (!new_buf) {
gst_object_unref (self);
return nullptr;
}
priv->buffer_pool.push (new_buf);
}
return self;
}
static void
gst_d3d12_encoder_buffer_pool_release (GstD3D12EncoderBufferPool * pool,
GstD3D12EncoderBuffer * buffer)
{
auto priv = pool->priv;
{
std::lock_guard < std::mutex > lk (priv->lock);
buffer->dispose = nullptr;
buffer->pool = nullptr;
priv->buffer_pool.push (buffer);
priv->cond.notify_one ();
}
gst_object_unref (pool);
}
static gboolean
gst_d3d12_encoder_buffer_dispose (GstD3D12EncoderBuffer * buffer)
{
if (!buffer->pool)
return TRUE;
gst_mini_object_ref (buffer);
gst_d3d12_encoder_buffer_pool_release (buffer->pool, buffer);
return FALSE;
}
gboolean
gst_d3d12_encoder_buffer_pool_acquire (GstD3D12EncoderBufferPool * pool,
GstD3D12EncoderBuffer ** buffer)
{
g_return_val_if_fail (GST_IS_D3D12_ENCODER_BUFFER_POOL (pool), FALSE);
g_return_val_if_fail (buffer, FALSE);
*buffer = nullptr;
auto priv = pool->priv;
GstD3D12EncoderBuffer *new_buf = nullptr;
{
std::unique_lock < std::mutex > lk (priv->lock);
if (priv->pool_size > 0) {
while (priv->buffer_pool.empty ())
priv->cond.wait (lk);
}
if (!priv->buffer_pool.empty ()) {
new_buf = priv->buffer_pool.front ();
priv->buffer_pool.pop ();
}
}
if (!new_buf)
new_buf = gst_d3d12_encoder_buffer_pool_alloc (pool);
if (!new_buf)
return FALSE;
new_buf->pool = (GstD3D12EncoderBufferPool *) gst_object_ref (pool);
new_buf->dispose =
(GstMiniObjectDisposeFunction) gst_d3d12_encoder_buffer_dispose;
*buffer = new_buf;
return TRUE;
}
GstD3D12EncoderBuffer *
gst_d3d12_encoder_buffer_ref (GstD3D12EncoderBuffer * buffer)
{
return (GstD3D12EncoderBuffer *) gst_mini_object_ref (buffer);
}
void
gst_d3d12_encoder_buffer_unref (GstD3D12EncoderBuffer * buffer)
{
gst_mini_object_unref (buffer);
}
void
gst_clear_d3d12_encoder_buffer (GstD3D12EncoderBuffer ** buffer)
{
gst_clear_mini_object (buffer);
}
gboolean
gst_d3d12_encoder_buffer_get_metadata (GstD3D12EncoderBuffer * buffer,
ID3D12Resource ** metadata)
{
g_return_val_if_fail (buffer, FALSE);
g_return_val_if_fail (metadata, FALSE);
*metadata = buffer->metadata.Get ();
(*metadata)->AddRef ();
return TRUE;
}
gboolean
gst_d3d12_encoder_buffer_get_resolved_metadata (GstD3D12EncoderBuffer * buffer,
ID3D12Resource ** resolved_metadata)
{
g_return_val_if_fail (buffer, FALSE);
g_return_val_if_fail (resolved_metadata, FALSE);
*resolved_metadata = buffer->resolved_metadata.Get ();
(*resolved_metadata)->AddRef ();
return TRUE;
}
gboolean
gst_d3d12_encoder_buffer_get_bitstream (GstD3D12EncoderBuffer * buffer,
ID3D12Resource ** bitstream)
{
g_return_val_if_fail (buffer, FALSE);
g_return_val_if_fail (bitstream, FALSE);
*bitstream = buffer->bitstream.Get ();
(*bitstream)->AddRef ();
return TRUE;
}