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gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12encoder.cpp
Seungha Yang b37bfc02f5 d3d12: Remove unnecessary event handles 
null event NT handle to ID3D12Fence::SetEventOnCompletion()
will block the calling CPU thread already, thus it has no point that
creating an event NT handle in order to immediate wait for fence at CPU-side.
Note that passing a valid event NT handle to the fence API might be useful
when we need to wait for the fence value later (or timeout is required),
or want to wait for multiple fences at once via WaitForMultipleObjects().
But it's not a considered use case for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7176>
2024-07-16 19:17:15 +00:00

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/* 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 "gstd3d12encoder.h"
#include "gstd3d12encoderbufferpool.h"
#include <gst/base/gstqueuearray.h>
#include <directx/d3dx12.h>
#include <wrl.h>
#include <memory>
#include <vector>
#include <queue>
#include <mutex>
#include <condition_variable>
#include <atomic>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_encoder_debug);
#define GST_CAT_DEFAULT gst_d3d12_encoder_debug
enum
{
PROP_0,
PROP_ADAPTER_LUID,
PROP_DEVICE_ID,
PROP_VENDOR_ID,
};
#define ASYNC_DEPTH 4
struct EncoderOutputData
{
GstVideoCodecFrame *frame = nullptr;
GstD3D12EncoderBuffer *buffer = nullptr;
guint64 fence_val = 0;
};
/* *INDENT-OFF* */
struct EncoderSessionData
{
EncoderSessionData ()
{
output_queue = gst_vec_deque_new_for_struct (sizeof (EncoderOutputData),
16);
}
~EncoderSessionData ()
{
if (upload_pool)
gst_buffer_pool_set_active (upload_pool, FALSE);
gst_clear_object (&upload_pool);
gst_clear_object (&encoder_pool);
gst_vec_deque_free (output_queue);
}
ComPtr<ID3D12VideoEncoder> encoder;
ComPtr<ID3D12VideoEncoderHeap> heap;
std::mutex queue_lock;
std::condition_variable queue_cond;
GstVecDeque *output_queue;
GstD3D12EncoderBufferPool *encoder_pool = nullptr;
GstBufferPool *upload_pool = nullptr;
};
struct EncoderCmdData
{
~EncoderCmdData ()
{
if (queue)
gst_d3d12_command_queue_fence_wait (queue, G_MAXUINT64);
gst_clear_object (&ca_pool);
gst_clear_object (&queue);
}
ComPtr<ID3D12VideoDevice3> video_device;
ComPtr<ID3D12VideoEncodeCommandList2> cl;
GstD3D12CommandQueue *queue = nullptr;
GstD3D12CommandAllocatorPool *ca_pool = nullptr;
guint64 fence_val = 0;
};
struct GstD3D12EncoderPrivate
{
GstD3D12EncoderPrivate ()
{
fence_data_pool = gst_d3d12_fence_data_pool_new ();
}
~GstD3D12EncoderPrivate ()
{
gst_clear_object (&fence_data_pool);
g_clear_pointer (&input_state, gst_video_codec_state_unref);
}
GstD3D12EncoderConfig config = { };
D3D12_VIDEO_ENCODER_DESC encoder_desc = { };
D3D12_VIDEO_ENCODER_HEAP_DESC heap_desc = { };
D3D12_FEATURE_DATA_VIDEO_ENCODER_RESOURCE_REQUIREMENTS resource_req = { };
GstVideoCodecState *input_state = nullptr;
std::vector<D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA> subregions;
std::unique_ptr<EncoderCmdData> cmd;
std::unique_ptr<EncoderSessionData> session;
GThread *output_thread = nullptr;
GstD3D12FenceDataPool *fence_data_pool;
std::atomic<GstFlowReturn> last_flow = { GST_FLOW_OK };
std::atomic<bool> flushing = { false };
bool array_of_textures = false;
D3D12_FEATURE_DATA_FORMAT_INFO format_info = { };
};
/* *INDENT-ON* */
static void gst_d3d12_encoder_finalize (GObject * object);
static void gst_d3d12_encoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_d3d12_encoder_set_context (GstElement * element,
GstContext * context);
static gboolean gst_d3d12_encoder_open (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_start (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_stop (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_close (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_sink_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_src_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static GstFlowReturn gst_d3d12_encoder_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_d3d12_encoder_finish (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_flush (GstVideoEncoder * encoder);
#define gst_d3d12_encoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstD3D12Encoder,
gst_d3d12_encoder, GST_TYPE_VIDEO_ENCODER,
GST_DEBUG_CATEGORY_INIT (gst_d3d12_encoder_debug,
"d3d12encoder", 0, "d3d12encoder"));
static void
gst_d3d12_encoder_class_init (GstD3D12EncoderClass * klass)
{
auto object_class = G_OBJECT_CLASS (klass);
auto element_class = GST_ELEMENT_CLASS (klass);
auto encoder_class = GST_VIDEO_ENCODER_CLASS (klass);
auto read_only_params = (GParamFlags) (GST_PARAM_DOC_SHOW_DEFAULT |
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
object_class->finalize = gst_d3d12_encoder_finalize;
object_class->get_property = gst_d3d12_encoder_get_property;
g_object_class_install_property (object_class, PROP_ADAPTER_LUID,
g_param_spec_int64 ("adapter-luid", "Adapter LUID",
"DXGI Adapter LUID (Locally Unique Identifier) of created device",
G_MININT64, G_MAXINT64, 0, read_only_params));
g_object_class_install_property (object_class, PROP_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0, read_only_params));
g_object_class_install_property (object_class, PROP_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0, read_only_params));
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_set_context);
encoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_open);
encoder_class->start = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_start);
encoder_class->stop = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_stop);
encoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_close);
encoder_class->sink_query = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_sink_query);
encoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_src_query);
encoder_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_propose_allocation);
encoder_class->set_format = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_set_format);
encoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_handle_frame);
encoder_class->finish = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_finish);
encoder_class->flush = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_flush);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER, (GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_RATE_CONTROL,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_RATE_CONTROL_SUPPORT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SUBREGION_LAYOUT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SUBREGION_LAYOUT_SUPPORT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SEI_INSERT_MODE,
(GstPluginAPIFlags) 0);
}
static void
gst_d3d12_encoder_init (GstD3D12Encoder * self)
{
self->priv = new GstD3D12EncoderPrivate ();
}
static void
gst_d3d12_encoder_finalize (GObject * object)
{
auto self = GST_D3D12_ENCODER (object);
delete self->priv;
gst_clear_object (&self->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d12_encoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
auto self = GST_D3D12_ENCODER (object);
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
switch (prop_id) {
case PROP_ADAPTER_LUID:
g_value_set_int64 (value, klass->adapter_luid);
break;
case PROP_DEVICE_ID:
g_value_set_uint (value, klass->device_id);
break;
case PROP_VENDOR_ID:
g_value_set_uint (value, klass->vendor_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d12_encoder_set_context (GstElement * element, GstContext * context)
{
auto self = GST_D3D12_ENCODER (element);
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
gst_d3d12_handle_set_context_for_adapter_luid (element, context,
klass->adapter_luid, &self->device);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_d3d12_encoder_open (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
HRESULT hr;
ComPtr < ID3D12VideoDevice3 > video_device;
if (!gst_d3d12_ensure_element_data_for_adapter_luid (GST_ELEMENT_CAST (self),
klass->adapter_luid, &self->device)) {
GST_ERROR_OBJECT (self, "Couldn't get device");
return FALSE;
}
auto device = gst_d3d12_device_get_device_handle (self->device);
hr = device->QueryInterface (IID_PPV_ARGS (&video_device));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "ID3D12VideoDevice3 interface is unavailable");
return FALSE;
}
D3D12_COMMAND_QUEUE_DESC queue_desc = { };
queue_desc.Type = D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE;
auto cmd = std::make_unique < EncoderCmdData > ();
cmd->queue = gst_d3d12_command_queue_new (device, &queue_desc,
D3D12_FENCE_FLAG_NONE, ASYNC_DEPTH);
if (!cmd->queue) {
GST_ERROR_OBJECT (self, "Couldn't create command queue");
return FALSE;
}
cmd->ca_pool = gst_d3d12_command_allocator_pool_new (device,
D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE);
cmd->video_device = video_device;
priv->cmd = std::move (cmd);
return TRUE;
}
static gboolean
gst_d3d12_encoder_start (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Start");
if (!priv->cmd) {
GST_ERROR_OBJECT (self, "Command data is not configured");
return FALSE;
}
priv->last_flow = GST_FLOW_OK;
return TRUE;
}
static void
gst_d3d12_encoder_drain (GstD3D12Encoder * self, gboolean locked)
{
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Draining");
/* Unlock stream-lock so that output thread can push pending data
* from output thread */
if (locked)
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
if (priv->cmd) {
GST_DEBUG_OBJECT (self, "Waiting for command finish %" G_GUINT64_FORMAT,
priv->cmd->fence_val);
gst_d3d12_command_queue_fence_wait (priv->cmd->queue, priv->cmd->fence_val);
}
if (priv->session && priv->output_thread) {
GST_DEBUG_OBJECT (self, "Sending empty task");
auto empty_data = EncoderOutputData ();
std::lock_guard < std::mutex > lk (priv->session->queue_lock);
gst_vec_deque_push_tail_struct (priv->session->output_queue, &empty_data);
priv->session->queue_cond.notify_one ();
}
g_clear_pointer (&priv->output_thread, g_thread_join);
if (locked)
GST_VIDEO_ENCODER_STREAM_LOCK (self);
GST_DEBUG_OBJECT (self, "Drained");
}
static gboolean
gst_d3d12_encoder_stop (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Stop");
gst_d3d12_encoder_drain (self, FALSE);
priv->session = nullptr;
return TRUE;
}
static gboolean
gst_d3d12_encoder_close (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Close");
gst_d3d12_encoder_drain (self, FALSE);
priv->session = nullptr;
priv->cmd = nullptr;
gst_clear_object (&self->device);
return TRUE;
}
static gboolean
gst_d3d12_encoder_handle_query (GstD3D12Encoder * self, GstQuery * query)
{
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
return gst_d3d12_handle_context_query (GST_ELEMENT (self),
query, self->device);
default:
break;
}
return FALSE;
}
static gboolean
gst_d3d12_encoder_sink_query (GstVideoEncoder * encoder, GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
if (gst_d3d12_encoder_handle_query (self, query))
return TRUE;
return GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (encoder, query);
}
static gboolean
gst_d3d12_encoder_src_query (GstVideoEncoder * encoder, GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
if (gst_d3d12_encoder_handle_query (self, query))
return TRUE;
return GST_VIDEO_ENCODER_CLASS (parent_class)->src_query (encoder, query);
}
static GstBufferPool *
gst_d3d12_encoder_create_upload_pool (GstD3D12Encoder * self)
{
auto priv = self->priv;
GstVideoInfo info;
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_NV12,
priv->config.resolution.Width, priv->config.resolution.Height);
auto caps = gst_video_info_to_caps (&info);
auto pool = gst_d3d12_buffer_pool_new (self->device);
auto config = gst_buffer_pool_get_config (pool);
auto params = gst_d3d12_allocation_params_new (self->device, &info,
GST_D3D12_ALLOCATION_FLAG_DEFAULT,
D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS |
D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET, D3D12_HEAP_FLAG_NONE);
gst_buffer_pool_config_set_d3d12_allocation_params (config, params);
gst_d3d12_allocation_params_free (params);
gst_buffer_pool_config_set_params (config, caps, info.size, 0, 0);
gst_caps_unref (caps);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Set config failed");
gst_object_unref (pool);
return nullptr;
}
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (self, "Set active failed");
gst_object_unref (pool);
return nullptr;
}
return pool;
}
static gboolean
gst_d3d12_encoder_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GstCaps *caps;
GstVideoInfo info;
gst_query_parse_allocation (query, &caps, nullptr);
if (!caps) {
GST_WARNING_OBJECT (self, "null caps in query");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps)) {
GST_WARNING_OBJECT (self, "Failed to convert caps into info");
return FALSE;
}
auto features = gst_caps_get_features (caps, 0);
gboolean is_d3d12 = FALSE;
GstBufferPool *pool;
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D12_MEMORY)) {
GST_DEBUG_OBJECT (self, "Upstream supports d3d12 memory");
pool = gst_d3d12_buffer_pool_new (self->device);
is_d3d12 = TRUE;
} else {
pool = gst_video_buffer_pool_new ();
}
if (!pool) {
GST_ERROR_OBJECT (self, "Couldn't create buffer pool");
return FALSE;
}
auto config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
if (is_d3d12) {
GstVideoAlignment align;
gst_video_alignment_reset (&align);
align.padding_right = priv->config.resolution.Width - info.width;
align.padding_bottom = priv->config.resolution.Height - info.height;
auto params = gst_d3d12_allocation_params_new (self->device, &info,
GST_D3D12_ALLOCATION_FLAG_DEFAULT,
D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS |
D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET, D3D12_HEAP_FLAG_NONE);
gst_d3d12_allocation_params_alignment (params, &align);
gst_buffer_pool_config_set_d3d12_allocation_params (config, params);
gst_d3d12_allocation_params_free (params);
} else {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
guint size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, ASYNC_DEPTH, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set pool config");
gst_object_unref (pool);
return FALSE;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size, ASYNC_DEPTH, 0);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, nullptr);
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_d3d12_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
gst_d3d12_encoder_drain (self, TRUE);
priv->session = nullptr;
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
priv->input_state = gst_video_codec_state_ref (state);
priv->last_flow = GST_FLOW_OK;
priv->config = { };
GST_DEBUG_OBJECT (self, "Set format with caps %" GST_PTR_FORMAT, state->caps);
if (!klass->new_sequence (self, priv->cmd->video_device.Get (), state,
&priv->config)) {
GST_ERROR_OBJECT (self, "Couldn't accept new sequence");
return FALSE;
}
g_assert (priv->config.max_subregions > 0);
auto & config = priv->config;
auto flags = config.support_flags;
GST_DEBUG_OBJECT (self, "Encoder caps, "
"rate-control-reconfig: %d, resolution-reconfig: %d, "
"vbv-size: %d, frame-analysis: %d, texture-arrays: %d, delta-qp: %d, "
"subregion-reconfig: %d, qp-range: %d, initial-qp: %d, "
"max-frame-size: %d, gop-reconfigure: %d, me-precision-limit: %d",
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RESOLUTION_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_VBV_SIZE_CONFIG_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_FRAME_ANALYSIS_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_DELTA_QP_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_ADJUSTABLE_QP_RANGE_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_INITIAL_QP_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_MAX_FRAME_SIZE_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, SEQUENCE_GOP_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags,
MOTION_ESTIMATION_PRECISION_MODE_LIMIT_AVAILABLE));
auto video_device = priv->cmd->video_device;
auto & resource_req = priv->resource_req;
resource_req.Codec = klass->codec;
resource_req.Profile = config.profile_desc;
resource_req.InputFormat = DXGI_FORMAT_NV12;
resource_req.PictureTargetResolution = config.resolution;
auto hr = video_device->CheckFeatureSupport
(D3D12_FEATURE_VIDEO_ENCODER_RESOURCE_REQUIREMENTS,
&resource_req, sizeof (resource_req));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't query resource requirement");
return FALSE;
}
if (CHECK_SUPPORT_FLAG (flags, RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS)) {
GST_DEBUG_OBJECT (self, "Device requires texture array");
priv->array_of_textures = false;
} else {
GST_DEBUG_OBJECT (self, "Device supports array of textures");
priv->array_of_textures = true;
}
auto device = gst_d3d12_device_get_device_handle (self->device);
priv->format_info.Format = DXGI_FORMAT_NV12;
hr = device->CheckFeatureSupport (D3D12_FEATURE_FORMAT_INFO,
&priv->format_info, sizeof (priv->format_info));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't query format info");
return FALSE;
}
auto session = std::make_unique < EncoderSessionData > ();
auto & desc = priv->encoder_desc;
desc = { };
desc.EncodeCodec = klass->codec;
desc.EncodeProfile = config.profile_desc;
desc.InputFormat = priv->format_info.Format;
desc.CodecConfiguration = config.codec_config;
desc.MaxMotionEstimationPrecision =
D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE_MAXIMUM;
hr = video_device->CreateVideoEncoder (&desc,
IID_PPV_ARGS (&session->encoder));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder");
return FALSE;
}
auto & heap_desc = priv->heap_desc;
heap_desc = { };
heap_desc.EncodeCodec = klass->codec;
heap_desc.EncodeProfile = config.profile_desc;
heap_desc.EncodeLevel = config.level;
heap_desc.ResolutionsListCount = 1;
heap_desc.pResolutionList = &config.resolution;
hr = video_device->CreateVideoEncoderHeap (&heap_desc,
IID_PPV_ARGS (&session->heap));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder heap");
return FALSE;
}
guint resolved_metadata_size;
resolved_metadata_size = sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA)
+ sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA) *
config.max_subregions;
if (resource_req.EncoderMetadataBufferAccessAlignment > 1) {
resolved_metadata_size =
((resolved_metadata_size +
resource_req.EncoderMetadataBufferAccessAlignment - 1) /
resource_req.EncoderMetadataBufferAccessAlignment) *
resource_req.EncoderMetadataBufferAccessAlignment;
}
/* TODO: calculate bitstream buffer size */
guint bitstream_size = 1024 * 1024 * 8;
session->encoder_pool = gst_d3d12_encoder_buffer_pool_new (self->device,
resource_req.MaxEncoderOutputMetadataBufferSize,
resolved_metadata_size, bitstream_size, ASYNC_DEPTH);
session->upload_pool = gst_d3d12_encoder_create_upload_pool (self);
if (!session->upload_pool)
return FALSE;
priv->session = std::move (session);
return TRUE;
}
static GstBuffer *
gst_d3d12_encoder_upload_frame (GstD3D12Encoder * self, GstBuffer * buffer)
{
auto priv = self->priv;
const auto info = &priv->input_state->info;
GstBuffer *upload = nullptr;
gboolean d3d12_copy = FALSE;
auto mem = gst_buffer_peek_memory (buffer, 0);
if (gst_is_d3d12_memory (mem)) {
auto dmem = GST_D3D12_MEMORY_CAST (mem);
if (gst_d3d12_device_is_equal (dmem->device, self->device)) {
GstMapInfo map_info;
if (!gst_memory_map (mem, &map_info, GST_MAP_READ_D3D12)) {
GST_ERROR_OBJECT (self, "Couldn't map memory");
return nullptr;
}
gst_memory_unmap (mem, &map_info);
auto resource = gst_d3d12_memory_get_resource_handle (dmem);
auto desc = GetDesc (resource);
if (desc.Width >= (UINT64) priv->config.resolution.Width &&
desc.Height >= priv->config.resolution.Height) {
return gst_buffer_ref (buffer);
}
d3d12_copy = TRUE;
}
}
gst_buffer_pool_acquire_buffer (priv->session->upload_pool, &upload, nullptr);
if (!upload) {
GST_ERROR_OBJECT (self, "Couldn't acquire buffer");
return nullptr;
}
if (d3d12_copy) {
std::vector < GstD3D12CopyTextureRegionArgs > copy_args;
auto dmem = GST_D3D12_MEMORY_CAST (mem);
auto src_resource = gst_d3d12_memory_get_resource_handle (dmem);
ComPtr < ID3D12Fence > fence_to_wait;
guint64 fence_val_to_wait = 0;
gst_d3d12_memory_get_fence (dmem, &fence_to_wait, &fence_val_to_wait);
dmem = (GstD3D12Memory *) gst_buffer_peek_memory (upload, 0);
auto dst_resource = gst_d3d12_memory_get_resource_handle (dmem);
D3D12_BOX src_box[2];
auto desc = GetDesc (src_resource);
UINT width = MIN ((UINT) desc.Width, priv->config.resolution.Width);
UINT height = MIN ((UINT) desc.Height, priv->config.resolution.Height);
for (guint i = 0; i < 2; i++) {
GstD3D12CopyTextureRegionArgs args;
memset (&args, 0, sizeof (args));
args.src = CD3DX12_TEXTURE_COPY_LOCATION (src_resource, i);
args.dst = CD3DX12_TEXTURE_COPY_LOCATION (dst_resource, i);
src_box[i].left = 0;
src_box[i].top = 0;
src_box[i].front = 0;
src_box[i].back = 1;
if (i == 0) {
src_box[i].right = width;
src_box[i].bottom = height;
} else {
src_box[i].right = width / 2;
src_box[i].bottom = height / 2;
}
args.src_box = &src_box[i];
copy_args.push_back (args);
}
guint64 fence_val = 0;
guint num_fences_to_wait = 0;
ID3D12Fence *fences_to_wait[] = { fence_to_wait.Get () };
guint64 fence_values_to_wait[] = { fence_val_to_wait };
if (fence_to_wait)
num_fences_to_wait++;
gst_d3d12_device_copy_texture_region (self->device, copy_args.size (),
copy_args.data (), nullptr, num_fences_to_wait, fences_to_wait,
fence_values_to_wait, D3D12_COMMAND_LIST_TYPE_DIRECT, &fence_val);
gst_d3d12_buffer_set_fence (upload,
gst_d3d12_device_get_fence_handle (self->device,
D3D12_COMMAND_LIST_TYPE_DIRECT), fence_val, FALSE);
} else {
GstVideoFrame src_frame, dst_frame;
if (!gst_video_frame_map (&src_frame, info, buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Couldn't map frame");
gst_buffer_unref (upload);
return nullptr;
}
if (!gst_video_frame_map (&dst_frame, info, upload, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (self, "Couldn't map frame");
gst_video_frame_unmap (&src_frame);
gst_buffer_unref (upload);
return nullptr;
}
for (guint i = 0; i < GST_VIDEO_FRAME_N_PLANES (&src_frame); i++) {
auto src_width_in_bytes = GST_VIDEO_FRAME_COMP_WIDTH (&src_frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&src_frame, i);
auto src_height = GST_VIDEO_FRAME_COMP_HEIGHT (&src_frame, i);
auto src_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&src_frame, i);
auto dst_width_in_bytes = GST_VIDEO_FRAME_COMP_WIDTH (&dst_frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&dst_frame, i);
auto dst_height = GST_VIDEO_FRAME_COMP_HEIGHT (&dst_frame, i);
auto dst_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&dst_frame, i);
auto width_in_bytes = MIN (src_width_in_bytes, dst_width_in_bytes);
auto height = MIN (src_height, dst_height);
auto src_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&src_frame, i);
auto dst_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&dst_frame, i);
for (gint j = 0; j < height; j++) {
memcpy (dst_data, src_data, width_in_bytes);
dst_data += dst_stride;
src_data += src_stride;
}
}
gst_video_frame_unmap (&dst_frame);
gst_video_frame_unmap (&src_frame);
GstMapInfo map_info;
mem = gst_buffer_peek_memory (upload, 0);
if (!gst_memory_map (mem, &map_info, GST_MAP_READ_D3D12)) {
GST_ERROR_OBJECT (self, "Couldn't map memory");
gst_buffer_unref (upload);
return nullptr;
}
gst_memory_unmap (mem, &map_info);
}
return upload;
}
static void
gst_d3d12_encoder_build_command (GstD3D12Encoder * self,
const D3D12_VIDEO_ENCODER_ENCODEFRAME_INPUT_ARGUMENTS * in_args,
const D3D12_VIDEO_ENCODER_ENCODEFRAME_OUTPUT_ARGUMENTS * out_args,
const D3D12_VIDEO_ENCODER_RESOLVE_METADATA_INPUT_ARGUMENTS * meta_in_args,
const D3D12_VIDEO_ENCODER_RESOLVE_METADATA_OUTPUT_ARGUMENTS * meta_out_args,
GstD3D12FenceData * fence_data,
ID3D12VideoEncodeCommandList2 * command_list)
{
auto priv = self->priv;
const auto & format_info = priv->format_info;
auto array_of_textures = priv->array_of_textures;
std::vector < D3D12_RESOURCE_BARRIER > pre_enc_barrier;
std::vector < D3D12_RESOURCE_BARRIER > post_enc_barrier;
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (in_args->pInputFrame,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (in_args->pInputFrame,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, D3D12_RESOURCE_STATE_COMMON));
/* Reference picture barriers */
if (in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds > 0) {
if (array_of_textures) {
for (UINT i = 0;
i < in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds; i++) {
auto ref_pic =
in_args->PictureControlDesc.ReferenceFrames.ppTexture2Ds[i];
ref_pic->AddRef ();
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_COM (ref_pic));
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ,
D3D12_RESOURCE_STATE_COMMON));
}
} else {
auto ref_pic =
in_args->PictureControlDesc.ReferenceFrames.ppTexture2Ds[0];
ref_pic->AddRef ();
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_COM (ref_pic));
auto ref_pic_desc = GetDesc (ref_pic);
for (UINT i = 0;
i < in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds; i++) {
UINT mip_slice, plane_slice, array_slice;
D3D12DecomposeSubresource (in_args->PictureControlDesc.
ReferenceFrames.pSubresources[i], ref_pic_desc.MipLevels,
ref_pic_desc.DepthOrArraySize, mip_slice, array_slice, plane_slice);
for (UINT plane = 0; plane < format_info.PlaneCount; plane++) {
UINT subresource = D3D12CalcSubresource (mip_slice, array_slice,
plane, ref_pic_desc.MipLevels,
ref_pic_desc.DepthOrArraySize);
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, subresource));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ,
D3D12_RESOURCE_STATE_COMMON, subresource));
}
}
}
}
/* Reconstructed picture barries */
if (out_args->ReconstructedPicture.pReconstructedPicture) {
out_args->ReconstructedPicture.pReconstructedPicture->AddRef ();
gst_d3d12_fence_data_push (fence_data,
FENCE_NOTIFY_COM (out_args->
ReconstructedPicture.pReconstructedPicture));
if (array_of_textures) {
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
} else {
auto recon_pic_desc =
GetDesc (out_args->ReconstructedPicture.pReconstructedPicture);
UINT mip_slice, plane_slice, array_slice;
D3D12DecomposeSubresource (out_args->
ReconstructedPicture.ReconstructedPictureSubresource,
recon_pic_desc.MipLevels, recon_pic_desc.DepthOrArraySize, mip_slice,
array_slice, plane_slice);
for (UINT plane = 0; plane < format_info.PlaneCount; plane++) {
UINT subresource = D3D12CalcSubresource (mip_slice, array_slice,
plane, recon_pic_desc.MipLevels,
recon_pic_desc.DepthOrArraySize);
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE, subresource));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON, subresource));
}
}
}
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (out_args->Bitstream.
pBuffer, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
command_list->ResourceBarrier (pre_enc_barrier.size (),
pre_enc_barrier.data ());
auto encoder = priv->session->encoder;
auto heap = priv->session->heap;
command_list->EncodeFrame (encoder.Get (), heap.Get (), in_args, out_args);
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_COM (encoder.Detach ()));
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_COM (heap.Detach ()));
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (out_args->Bitstream.
pBuffer, D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (meta_out_args->ResolvedLayoutMetadata.pBuffer,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
command_list->ResourceBarrier (post_enc_barrier.size (),
post_enc_barrier.data ());
command_list->ResolveEncoderOutputMetadata (meta_in_args, meta_out_args);
std::vector < D3D12_RESOURCE_BARRIER > post_resolve_barrier;
post_resolve_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, D3D12_RESOURCE_STATE_COMMON));
post_resolve_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (meta_out_args->ResolvedLayoutMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
command_list->ResourceBarrier (post_resolve_barrier.size (),
post_resolve_barrier.data ());
}
static gboolean
gst_d3d12_encoder_resolve_bitstream (GstD3D12Encoder * self,
ID3D12Resource * resolved_metadata, ID3D12Resource * bitstream,
GstBuffer * output)
{
auto priv = self->priv;
guint8 *map_data;
HRESULT hr;
g_assert (output);
CD3DX12_RANGE zero_range (0, 0);
hr = resolved_metadata->Map (0, nullptr, (void **) &map_data);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't map metadata");
return FALSE;
}
D3D12_VIDEO_ENCODER_OUTPUT_METADATA output_meta =
*((D3D12_VIDEO_ENCODER_OUTPUT_METADATA *) map_data);
GST_TRACE_OBJECT (self,
"EncodeErrorFlags: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageQP: %" G_GUINT64_FORMAT ", "
"EncodeStats.IntraCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.InterCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.SkipCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageMotionEstimationXDirection: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageMotionEstimationYDirection: %" G_GUINT64_FORMAT ", "
"EncodedBitstreamWrittenBytesCount: %" G_GUINT64_FORMAT ", "
"WrittenSubregionsCount: %" G_GUINT64_FORMAT,
output_meta.EncodeErrorFlags,
output_meta.EncodeStats.AverageQP,
output_meta.EncodeStats.IntraCodingUnitsCount,
output_meta.EncodeStats.InterCodingUnitsCount,
output_meta.EncodeStats.SkipCodingUnitsCount,
output_meta.EncodeStats.AverageMotionEstimationXDirection,
output_meta.EncodeStats.AverageMotionEstimationYDirection,
output_meta.EncodedBitstreamWrittenBytesCount,
output_meta.WrittenSubregionsCount);
if (output_meta.WrittenSubregionsCount == 0 ||
output_meta.EncodedBitstreamWrittenBytesCount == 0) {
GST_ERROR_OBJECT (self, "No written data");
resolved_metadata->Unmap (0, &zero_range);
return FALSE;
}
if (output_meta.EncodeErrorFlags !=
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_NO_ERROR) {
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_CODEC_PICTURE_CONTROL_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Picture control not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_SUBREGION_LAYOUT_CONFIGURATION_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Subregion layout not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_INVALID_REFERENCE_PICTURES) !=
0) {
GST_ERROR_OBJECT (self, "Invalid reference picture");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_RECONFIGURATION_REQUEST_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Reconfigure not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_INVALID_METADATA_BUFFER_SOURCE)
!= 0) {
GST_ERROR_OBJECT (self, "Invalid metadata buffer source");
}
resolved_metadata->Unmap (0, &zero_range);
return FALSE;
}
map_data += sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA);
priv->subregions.clear ();
UINT64 total_subregion_size = 0;
for (guint i = 0; i < output_meta.WrittenSubregionsCount; i++) {
auto subregion =
*((D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA *) map_data);
GST_TRACE_OBJECT (self, "Subregion %d, bSize: %" G_GUINT64_FORMAT ", "
"bStartOffset: %" G_GUINT64_FORMAT ", bHeaderSize: %" G_GUINT64_FORMAT,
i, subregion.bSize, subregion.bStartOffset, subregion.bHeaderSize);
subregion.bStartOffset += total_subregion_size;
priv->subregions.push_back (subregion);
total_subregion_size += subregion.bSize;
map_data += sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA);
}
resolved_metadata->Unmap (0, &zero_range);
hr = bitstream->Map (0, nullptr, (void **) &map_data);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't map bitstream");
return FALSE;
}
auto mem = gst_allocator_alloc (nullptr, total_subregion_size, nullptr);
GstMapInfo map_info;
gst_memory_map (mem, &map_info, GST_MAP_WRITE);
auto data = (guint8 *) map_info.data;
for (size_t i = 0; i < priv->subregions.size (); i++) {
const auto & subregion = priv->subregions[i];
memcpy (data, map_data + subregion.bStartOffset, subregion.bSize);
data += subregion.bSize;
}
gst_memory_unmap (mem, &map_info);
bitstream->Unmap (0, &zero_range);
gst_buffer_append_memory (output, mem);
return TRUE;
}
static gpointer
gst_d3d12_encoder_output_loop (GstD3D12Encoder * self)
{
auto priv = self->priv;
auto encoder = GST_VIDEO_ENCODER (self);
GST_DEBUG_OBJECT (self, "Entering output thread");
while (true) {
EncoderOutputData output_data;
{
GST_LOG_OBJECT (self, "Waiting for output data");
std::unique_lock < std::mutex > lk (priv->session->queue_lock);
while (gst_vec_deque_is_empty (priv->session->output_queue))
priv->session->queue_cond.wait (lk);
output_data = *((EncoderOutputData *)
gst_vec_deque_pop_head_struct (priv->session->output_queue));
}
if (!output_data.frame) {
GST_DEBUG_OBJECT (self, "Got terminate data");
break;
}
GST_LOG_OBJECT (self, "Processing output %" G_GUINT64_FORMAT,
output_data.fence_val);
gst_d3d12_command_queue_fence_wait (priv->cmd->queue,
output_data.fence_val);
if (priv->flushing) {
GST_DEBUG_OBJECT (self, "We are flushing");
gst_d3d12_encoder_buffer_unref (output_data.buffer);
gst_clear_buffer (&output_data.frame->output_buffer);
gst_video_encoder_finish_frame (encoder, output_data.frame);
} else if (priv->last_flow == GST_FLOW_OK) {
ComPtr < ID3D12Resource > resolved_metadata;
ComPtr < ID3D12Resource > bitstream;
gst_d3d12_encoder_buffer_get_resolved_metadata (output_data.buffer,
&resolved_metadata);
gst_d3d12_encoder_buffer_get_bitstream (output_data.buffer, &bitstream);
auto frame = output_data.frame;
if (!frame->output_buffer)
frame->output_buffer = gst_buffer_new ();
auto resolve_ret = gst_d3d12_encoder_resolve_bitstream (self,
resolved_metadata.Get (),
bitstream.Get (), frame->output_buffer);
gst_d3d12_encoder_buffer_unref (output_data.buffer);
if (!resolve_ret) {
GST_ERROR_OBJECT (self, "Couldn't resolve bitstream buffer");
priv->last_flow = GST_FLOW_ERROR;
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
} else {
/* TODO: calculate dts in case of bframe is used */
frame->dts = frame->pts;
priv->last_flow = gst_video_encoder_finish_frame (encoder, frame);
if (priv->last_flow != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Last flow was %s",
gst_flow_get_name (priv->last_flow));
}
}
} else {
GST_DEBUG_OBJECT (self, "Dropping framem last flow return was %s",
gst_flow_get_name (priv->last_flow));
gst_d3d12_encoder_buffer_unref (output_data.buffer);
gst_clear_buffer (&output_data.frame->output_buffer);
gst_video_encoder_finish_frame (encoder, output_data.frame);
}
}
GST_DEBUG_OBJECT (self, "Leaving output thread");
return nullptr;
}
static GstFlowReturn
gst_d3d12_encoder_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto & config = priv->config;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
if (!priv->session) {
GST_ERROR_OBJECT (self, "Encoding session is not configured");
return GST_FLOW_ERROR;
}
if (!priv->session->encoder || !priv->session->heap) {
GST_ERROR_OBJECT (self, "Previous reconfigure failed");
return GST_FLOW_ERROR;
}
if (priv->last_flow != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Last flow was %s",
gst_flow_get_name (priv->last_flow));
gst_video_encoder_finish_frame (encoder, frame);
return priv->last_flow;
}
auto upload = gst_d3d12_encoder_upload_frame (self, frame->input_buffer);
if (!upload) {
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
GstD3D12FenceData *fence_data;
gst_d3d12_fence_data_pool_acquire (priv->fence_data_pool, &fence_data);
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_MINI_OBJECT (upload));
GstD3D12CommandAllocator *gst_ca;
if (!gst_d3d12_command_allocator_pool_acquire (priv->cmd->ca_pool, &gst_ca)) {
GST_ERROR_OBJECT (self, "Couldn't acquire command allocator");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
gst_d3d12_fence_data_push (fence_data, FENCE_NOTIFY_MINI_OBJECT (gst_ca));
auto ca = gst_d3d12_command_allocator_get_handle (gst_ca);
auto hr = ca->Reset ();
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't reset command allocator");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
if (!priv->cmd->cl) {
auto device = gst_d3d12_device_get_device_handle (self->device);
hr = device->CreateCommandList (0, D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE,
ca, nullptr, IID_PPV_ARGS (&priv->cmd->cl));
} else {
hr = priv->cmd->cl->Reset (ca);
}
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't reset command list");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
auto video_device = priv->cmd->video_device.Get ();
D3D12_VIDEO_ENCODER_ENCODEFRAME_INPUT_ARGUMENTS in_args = { };
D3D12_VIDEO_ENCODER_ENCODEFRAME_OUTPUT_ARGUMENTS out_args = { };
D3D12_VIDEO_ENCODER_RESOLVE_METADATA_INPUT_ARGUMENTS meta_in_args = { };
D3D12_VIDEO_ENCODER_RESOLVE_METADATA_OUTPUT_ARGUMENTS meta_out_args = { };
auto prev_max_subregions = config.max_subregions;
gboolean need_new_session = FALSE;
if (!klass->start_frame (self, video_device, frame,
&in_args.SequenceControlDesc,
&in_args.PictureControlDesc, &out_args.ReconstructedPicture, &config,
&need_new_session)) {
GST_ERROR_OBJECT (self, "Start frame failed");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
if (need_new_session) {
GST_DEBUG_OBJECT (self, "Need new encoding session");
in_args.SequenceControlDesc.Flags =
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_NONE;
priv->session->encoder = nullptr;
priv->session->heap = nullptr;
auto & desc = priv->encoder_desc;
desc.EncodeCodec = klass->codec;
desc.EncodeProfile = config.profile_desc;
desc.InputFormat = priv->format_info.Format;
desc.CodecConfiguration = config.codec_config;
desc.MaxMotionEstimationPrecision =
D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE_MAXIMUM;
hr = video_device->CreateVideoEncoder (&desc,
IID_PPV_ARGS (&priv->session->encoder));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
auto & heap_desc = priv->heap_desc;
heap_desc.EncodeCodec = klass->codec;
heap_desc.EncodeProfile = config.profile_desc;
heap_desc.EncodeLevel = config.level;
heap_desc.ResolutionsListCount = 1;
heap_desc.pResolutionList = &config.resolution;
hr = video_device->CreateVideoEncoderHeap (&heap_desc,
IID_PPV_ARGS (&priv->session->heap));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder heap");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
}
if (prev_max_subregions != config.max_subregions) {
gst_clear_object (&priv->session->encoder_pool);
const auto & resource_req = priv->resource_req;
GST_DEBUG_OBJECT (self, "Subregion count changed %d -> %d",
prev_max_subregions, config.max_subregions);
guint resolved_metadata_size;
resolved_metadata_size = sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA)
+ sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA) *
config.max_subregions;
if (priv->resource_req.EncoderMetadataBufferAccessAlignment > 1) {
resolved_metadata_size =
((resolved_metadata_size +
resource_req.EncoderMetadataBufferAccessAlignment - 1) /
resource_req.EncoderMetadataBufferAccessAlignment) *
resource_req.EncoderMetadataBufferAccessAlignment;
}
/* TODO: calculate bitstream buffer size */
guint bitstream_size = 1024 * 1024 * 8;
priv->session->encoder_pool =
gst_d3d12_encoder_buffer_pool_new (self->device,
resource_req.MaxEncoderOutputMetadataBufferSize,
resolved_metadata_size, bitstream_size, ASYNC_DEPTH);
}
GstD3D12EncoderBuffer *encoder_buf;
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
if (!gst_d3d12_encoder_buffer_pool_acquire (priv->session->encoder_pool,
&encoder_buf)) {
GST_ERROR_OBJECT (self, "Couldn't acquire bitstream buffer");
GST_VIDEO_ENCODER_STREAM_LOCK (self);
klass->end_frame (self);
gst_clear_buffer (&frame->output_buffer);
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
GST_VIDEO_ENCODER_STREAM_LOCK (self);
gst_d3d12_fence_data_push (fence_data,
FENCE_NOTIFY_MINI_OBJECT (encoder_buf));
ComPtr < ID3D12Resource > metadata;
ComPtr < ID3D12Resource > resolved_metadata;
ComPtr < ID3D12Resource > bitstream;
gst_d3d12_encoder_buffer_get_metadata (encoder_buf, &metadata);
gst_d3d12_encoder_buffer_get_resolved_metadata (encoder_buf,
&resolved_metadata);
gst_d3d12_encoder_buffer_get_bitstream (encoder_buf, &bitstream);
auto mem = (GstD3D12Memory *) gst_buffer_peek_memory (upload, 0);
auto resource = gst_d3d12_memory_get_resource_handle (mem);
in_args.pInputFrame = resource;
in_args.InputFrameSubresource = 0;
in_args.CurrentFrameBitstreamMetadataSize = 0;
out_args.Bitstream.pBuffer = bitstream.Get ();
out_args.Bitstream.FrameStartOffset = 0;
out_args.EncoderOutputMetadata.pBuffer = metadata.Get ();
out_args.EncoderOutputMetadata.Offset = 0;
meta_in_args.EncoderCodec = klass->codec;
meta_in_args.EncoderProfile = config.profile_desc;
meta_in_args.EncoderInputFormat = DXGI_FORMAT_NV12;
meta_in_args.EncodedPictureEffectiveResolution = config.resolution;
meta_in_args.HWLayoutMetadata.pBuffer = metadata.Get ();
meta_in_args.HWLayoutMetadata.Offset = 0;
meta_out_args.ResolvedLayoutMetadata.pBuffer = resolved_metadata.Get ();
meta_out_args.ResolvedLayoutMetadata.Offset = 0;
auto cl = priv->cmd->cl;
gst_d3d12_encoder_build_command (self, &in_args, &out_args, &meta_in_args,
&meta_out_args, fence_data, cl.Get ());
hr = cl->Close ();
klass->end_frame (self);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't close command list");
gst_d3d12_fence_data_unref (fence_data);
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
ComPtr < ID3D12Fence > fence_to_wait;
guint64 fence_val_to_wait = 0;
if (gst_d3d12_memory_get_fence (mem, &fence_to_wait, &fence_val_to_wait)) {
gst_d3d12_command_queue_execute_wait (priv->cmd->queue,
fence_to_wait.Get (), fence_val_to_wait);
}
ID3D12CommandList *cmd_list[] = { cl.Get () };
hr = gst_d3d12_command_queue_execute_command_lists (priv->cmd->queue,
1, cmd_list, &priv->cmd->fence_val);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't execute command list");
gst_d3d12_fence_data_unref (fence_data);
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
gst_d3d12_command_queue_set_notify (priv->cmd->queue, priv->cmd->fence_val,
fence_data, (GDestroyNotify) gst_d3d12_fence_data_unref);
auto output_data = EncoderOutputData ();
output_data.frame = frame;
output_data.buffer = gst_d3d12_encoder_buffer_ref (encoder_buf);
output_data.fence_val = priv->cmd->fence_val;
GST_LOG_OBJECT (self, "Enqueue data %" G_GUINT64_FORMAT,
priv->cmd->fence_val);
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
{
std::lock_guard < std::mutex > lk (priv->session->queue_lock);
gst_vec_deque_push_tail_struct (priv->session->output_queue, &output_data);
priv->session->queue_cond.notify_one ();
}
GST_VIDEO_ENCODER_STREAM_LOCK (self);
if (!priv->output_thread) {
GST_DEBUG_OBJECT (self, "Spawning output thread");
priv->output_thread = g_thread_new ("GstD3D12H264EncLoop",
(GThreadFunc) gst_d3d12_encoder_output_loop, self);
}
return priv->last_flow;
}
static GstFlowReturn
gst_d3d12_encoder_finish (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
GST_DEBUG_OBJECT (self, "Finish");
gst_d3d12_encoder_drain (self, TRUE);
return GST_FLOW_OK;
}
static gboolean
gst_d3d12_encoder_flush (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Finish");
priv->flushing = true;
gst_d3d12_encoder_drain (self, TRUE);
priv->flushing = false;
priv->last_flow = GST_FLOW_OK;
return GST_FLOW_OK;
}
GType
gst_d3d12_encoder_rate_control_get_type (void)
{
static GType type = 0;
static const GEnumValue methods[] = {
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP, "Constant QP", "cqp"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CBR, "Constant bitrate", "cbr"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_VBR, "Variable bitrate", "vbr"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_QVBR,
"Constant quality variable bitrate", "qvbr"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderRateControl", methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_rate_control_support_get_type (void)
{
static GType type = 0;
static const GFlagsValue methods[] = {
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP), "Constant QP", "cqp"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CBR), "Constant bitrate",
"cbr"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_VBR), "Variable bitrate",
"vbr"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_QVBR),
"Constant quality variable bitrate", "qvbr"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_flags_register_static ("GstD3D12EncoderRateControlSupport",
methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_subregion_layout_get_type (void)
{
static GType type = 0;
static const GEnumValue methods[] = {
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME,
"Full frame without partitioning", "full"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_BYTES_PER_SUBREGION,
"Bytes per subregion", "bytes"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_SQUARE_UNITS_PER_SUBREGION_ROW_UNALIGNED,
"Coding units (e.g., macroblock) per subregion", "coding-units"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_ROWS_PER_SUBREGION,
"Uniform rows per subregion", "rows"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_SUBREGIONS_PER_FRAME,
"Uniform subregions per frame", "subregions"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderSubregionLayout", methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_subregion_layout_support_get_type (void)
{
static GType type = 0;
static const GFlagsValue methods[] = {
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME),
"Full frame without partitioning", "full"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_BYTES_PER_SUBREGION),
"Bytes per subregion", "bytes"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_SQUARE_UNITS_PER_SUBREGION_ROW_UNALIGNED),
"Coding units (e.g., macroblock) per subregion", "coding-units"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_ROWS_PER_SUBREGION),
"Uniform rows (in coding-unit) per subregion", "rows"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_SUBREGIONS_PER_FRAME),
"Uniform subregions per frame", "subregions"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_flags_register_static ("GstD3D12EncoderSubregionLayoutSupport",
methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_sei_insert_mode_get_type (void)
{
static GType type = 0;
static const GEnumValue modes[] = {
{GST_D3D12_ENCODER_SEI_INSERT, "Insert", "insert"},
{GST_D3D12_ENCODER_SEI_INSERT_AND_DROP, "Insert and drop",
"insert-and-drop"},
{GST_D3D12_ENCODER_SEI_DISABLED, "Disabled", "disabled"},
{0, nullptr, nullptr}
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderSeiInsertMode", modes);
} GST_D3D12_CALL_ONCE_END;
return type;
}
gboolean
gst_d3d12_encoder_check_needs_new_session (D3D12_VIDEO_ENCODER_SUPPORT_FLAGS
support_flags, D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAGS seq_flags)
{
bool rc_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_RATE_CONTROL_CHANGE) != 0;
bool can_rc_update = CHECK_SUPPORT_FLAG (support_flags,
RATE_CONTROL_RECONFIGURATION_AVAILABLE);
if (rc_updated && !can_rc_update)
return TRUE;
bool layout_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_SUBREGION_LAYOUT_CHANGE) != 0;
bool can_layout_update = CHECK_SUPPORT_FLAG (support_flags,
SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE);
if (layout_updated && !can_layout_update)
return TRUE;
bool gop_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_GOP_SEQUENCE_CHANGE) != 0;
bool can_gop_update = CHECK_SUPPORT_FLAG (support_flags,
SEQUENCE_GOP_RECONFIGURATION_AVAILABLE);
if (gop_updated && !can_gop_update)
return TRUE;
return FALSE;
}
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