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gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstnvencoder.cpp
Thibault Saunier c033f8fad2 cuda: Factor out a public GstCUDA library 
So applications and elements implemented outside GStreamer can reuse
our infrastructure

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1472>
2022-04-19 16:39:43 +00:00

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/* GStreamer
* Copyright (C) 2022 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 "gstnvencoder.h"
#include <gst/cuda/gstcudautils.h>
#include <gst/cuda/gstcudamemory.h>
#include <gst/cuda/gstcudabufferpool.h>
#include <string.h>
#ifdef GST_CUDA_HAS_D3D
#include <gst/d3d11/gstd3d11.h>
#endif
#ifdef G_OS_WIN32
#include <wrl.h>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
#endif
GST_DEBUG_CATEGORY_STATIC (gst_nv_encoder_debug);
#define GST_CAT_DEFAULT gst_nv_encoder_debug
#define GET_LOCK(e) (&(GST_NV_ENCODER_CAST(e)->priv->lock))
#define GST_NV_ENCODER_LOCK(e) G_STMT_START { \
GST_TRACE_OBJECT (e, "Locking from thread %p", g_thread_self ()); \
g_mutex_lock(GET_LOCK(e)); \
GST_TRACE_OBJECT (e, "Locked from thread %p", g_thread_self ()); \
} G_STMT_END
#define GST_NV_ENCODER_UNLOCK(e) G_STMT_START { \
GST_TRACE_OBJECT (e, "Unlocking from thread %p", g_thread_self ()); \
g_mutex_unlock(GET_LOCK(e)); \
} G_STMT_END
struct _GstNvEncoderPrivate
{
GstCudaContext *context;
#ifdef GST_CUDA_HAS_D3D
GstD3D11Device *device;
#endif
gint64 dxgi_adapter_luid;
guint cuda_device_id;
gboolean d3d11_mode;
NV_ENC_INITIALIZE_PARAMS init_params;
NV_ENC_CONFIG config;
gpointer session;
GstVideoCodecState *input_state;
GstBufferPool *internal_pool;
GstClockTime dts_offset;
/* Array of GstNvEncoderTask, holding ownership */
GArray *task_pool;
GQueue free_tasks;
GQueue output_tasks;
GMutex lock;
GCond cond;
GThread *encoding_thread;
GstFlowReturn last_flow;
};
#define gst_nv_encoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (GstNvEncoder, gst_nv_encoder,
GST_TYPE_VIDEO_ENCODER);
static void gst_nv_encoder_finalize (GObject * object);
static void gst_nv_encoder_set_context (GstElement * element,
GstContext * context);
static gboolean gst_nv_encoder_open (GstVideoEncoder * encoder);
static gboolean gst_nv_encoder_close (GstVideoEncoder * encoder);
static gboolean gst_nv_encoder_stop (GstVideoEncoder * encoder);
static gboolean gst_nv_encoder_sink_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_nv_encoder_src_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_nv_encoder_propose_allocation (GstVideoEncoder *
encoder, GstQuery * query);
static gboolean gst_nv_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static GstFlowReturn gst_nv_encoder_handle_frame (GstVideoEncoder *
encoder, GstVideoCodecFrame * frame);
static GstFlowReturn gst_nv_encoder_finish (GstVideoEncoder * encoder);
static gboolean gst_nv_encoder_flush (GstVideoEncoder * encoder);
static void gst_nv_encoder_task_clear (GstNvEncoderTask * task);
static void
gst_nv_encoder_class_init (GstNvEncoderClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoEncoderClass *videoenc_class = GST_VIDEO_ENCODER_CLASS (klass);
object_class->finalize = gst_nv_encoder_finalize;
element_class->set_context = GST_DEBUG_FUNCPTR (gst_nv_encoder_set_context);
videoenc_class->open = GST_DEBUG_FUNCPTR (gst_nv_encoder_open);
videoenc_class->close = GST_DEBUG_FUNCPTR (gst_nv_encoder_close);
videoenc_class->stop = GST_DEBUG_FUNCPTR (gst_nv_encoder_stop);
videoenc_class->sink_query = GST_DEBUG_FUNCPTR (gst_nv_encoder_sink_query);
videoenc_class->src_query = GST_DEBUG_FUNCPTR (gst_nv_encoder_src_query);
videoenc_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_nv_encoder_propose_allocation);
videoenc_class->set_format = GST_DEBUG_FUNCPTR (gst_nv_encoder_set_format);
videoenc_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_nv_encoder_handle_frame);
videoenc_class->finish = GST_DEBUG_FUNCPTR (gst_nv_encoder_finish);
videoenc_class->flush = GST_DEBUG_FUNCPTR (gst_nv_encoder_flush);
GST_DEBUG_CATEGORY_INIT (gst_nv_encoder_debug, "nvencoder", 0, "nvencoder");
}
static void
gst_nv_encoder_init (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv;
self->priv = priv = (GstNvEncoderPrivate *)
gst_nv_encoder_get_instance_private (self);
priv->task_pool = g_array_new (FALSE, TRUE, sizeof (GstNvEncoderTask));
g_array_set_clear_func (priv->task_pool,
(GDestroyNotify) gst_nv_encoder_task_clear);
g_queue_init (&priv->free_tasks);
g_queue_init (&priv->output_tasks);
g_mutex_init (&priv->lock);
g_cond_init (&priv->cond);
gst_video_encoder_set_min_pts (GST_VIDEO_ENCODER (self),
GST_SECOND * 60 * 60 * 1000);
}
static void
gst_nv_encoder_finalize (GObject * object)
{
GstNvEncoder *self = GST_NV_ENCODER (object);
GstNvEncoderPrivate *priv = self->priv;
g_array_unref (priv->task_pool);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_nv_encoder_set_context (GstElement * element, GstContext * context)
{
GstNvEncoder *self = GST_NV_ENCODER (element);
GstNvEncoderPrivate *priv = self->priv;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode) {
gst_d3d11_handle_set_context_for_adapter_luid (element,
context, priv->dxgi_adapter_luid, &priv->device);
}
#endif
gst_cuda_handle_set_context (element, context, priv->cuda_device_id,
&priv->context);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_nv_encoder_reset (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv = self->priv;
GST_LOG_OBJECT (self, "Reset");
g_array_set_size (priv->task_pool, 0);
if (priv->internal_pool) {
gst_buffer_pool_set_active (priv->internal_pool, FALSE);
gst_clear_object (&priv->internal_pool);
}
if (priv->session) {
NvEncDestroyEncoder (priv->session);
priv->session = NULL;
}
g_queue_clear (&priv->free_tasks);
g_queue_clear (&priv->output_tasks);
priv->last_flow = GST_FLOW_OK;
return TRUE;
}
static gboolean
gst_nv_encoder_device_lock (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv = self->priv;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode) {
gst_d3d11_device_lock (priv->device);
return TRUE;
}
#endif
return gst_cuda_context_push (priv->context);
}
static gboolean
gst_nv_encoder_device_unlock (GstNvEncoder * self)
{
#ifdef GST_CUDA_HAS_D3D
GstNvEncoderPrivate *priv = self->priv;
if (priv->d3d11_mode) {
gst_d3d11_device_unlock (priv->device);
return TRUE;
}
#endif
return gst_cuda_context_pop (NULL);
}
static GstFlowReturn
gst_nv_encoder_get_free_task (GstNvEncoder * self, GstNvEncoderTask ** task,
gboolean check_last_flow)
{
GstNvEncoderPrivate *priv = self->priv;
GstFlowReturn ret = GST_FLOW_OK;
GstNvEncoderTask *free_task = NULL;
GST_NV_ENCODER_LOCK (self);
if (check_last_flow) {
if (priv->last_flow != GST_FLOW_OK) {
ret = priv->last_flow;
GST_NV_ENCODER_UNLOCK (self);
return ret;
}
while (priv->last_flow == GST_FLOW_OK && (free_task = (GstNvEncoderTask *)
g_queue_pop_head (&priv->free_tasks)) == NULL) {
g_cond_wait (&priv->cond, &priv->lock);
}
ret = priv->last_flow;
if (ret != GST_FLOW_OK && free_task) {
g_queue_push_tail (&priv->free_tasks, free_task);
free_task = NULL;
}
} else {
while ((free_task = (GstNvEncoderTask *)
g_queue_pop_head (&priv->free_tasks)) == NULL)
g_cond_wait (&priv->cond, &priv->lock);
}
GST_NV_ENCODER_UNLOCK (self);
*task = free_task;
return ret;
}
static gboolean
gst_nv_encoder_drain (GstNvEncoder * self, gboolean locked)
{
GstNvEncoderPrivate *priv = self->priv;
NV_ENC_PIC_PARAMS pic_params = { 0, };
NVENCSTATUS status;
GstNvEncoderTask *task;
if (!priv->session || !priv->encoding_thread)
return TRUE;
GST_DEBUG_OBJECT (self, "Drain");
if (locked)
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
gst_nv_encoder_get_free_task (self, &task, FALSE);
task->is_eos = TRUE;
pic_params.version = gst_nvenc_get_pic_params_version ();
pic_params.encodePicFlags = NV_ENC_PIC_FLAG_EOS;
pic_params.completionEvent = task->event_handle;
gst_nv_encoder_device_lock (self);
status = NvEncEncodePicture (priv->session, &pic_params);
if (status != NV_ENC_SUCCESS) {
GST_DEBUG_OBJECT (self, "Drain returned status %" GST_NVENC_STATUS_FORMAT,
GST_NVENC_STATUS_ARGS (status));
#ifdef G_OS_WIN32
if (task->event_handle) {
SetEvent (task->event_handle);
}
#endif
}
gst_nv_encoder_device_unlock (self);
GST_NV_ENCODER_LOCK (self);
g_queue_push_tail (&priv->output_tasks, task);
g_cond_broadcast (&priv->cond);
GST_NV_ENCODER_UNLOCK (self);
g_clear_pointer (&priv->encoding_thread, g_thread_join);
gst_nv_encoder_reset (self);
if (locked)
GST_VIDEO_ENCODER_STREAM_LOCK (self);
return TRUE;
}
#ifdef GST_CUDA_HAS_D3D
static gboolean
gst_nv_encoder_open_d3d11_device (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv = self->priv;
ComPtr < ID3D10Multithread > multi_thread;
ID3D11Device *device_handle;
HRESULT hr;
if (!gst_d3d11_ensure_element_data_for_adapter_luid (GST_ELEMENT (self),
priv->dxgi_adapter_luid, &priv->device)) {
GST_ERROR_OBJECT (self, "Cannot create d3d11device");
return FALSE;
}
device_handle = gst_d3d11_device_get_device_handle (priv->device);
hr = device_handle->QueryInterface (IID_PPV_ARGS (&multi_thread));
if (!gst_d3d11_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "ID3D10Multithread interface is unavailable");
gst_clear_object (&priv->device);
return FALSE;
}
multi_thread->SetMultithreadProtected (TRUE);
return TRUE;
}
#endif
static gboolean
gst_nv_encoder_open (GstVideoEncoder * encoder)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode) {
return gst_nv_encoder_open_d3d11_device (self);
}
#endif
if (!gst_cuda_ensure_element_context (GST_ELEMENT_CAST (encoder),
priv->cuda_device_id, &priv->context)) {
GST_ERROR_OBJECT (self, "failed to create CUDA context");
return FALSE;
}
return TRUE;
}
static gboolean
gst_nv_encoder_close (GstVideoEncoder * encoder)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
gst_clear_object (&priv->context);
#ifdef GST_CUDA_HAS_D3D
gst_clear_object (&priv->device);
#endif
return TRUE;
}
static gboolean
gst_nv_encoder_stop (GstVideoEncoder * encoder)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
GST_DEBUG_OBJECT (self, "Stop");
gst_nv_encoder_drain (self, FALSE);
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
return TRUE;
}
static gboolean
gst_nv_encoder_handle_context_query (GstNvEncoder * self, GstQuery * query)
{
GstNvEncoderPrivate *priv = self->priv;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode) {
return gst_d3d11_handle_context_query (GST_ELEMENT (self),
query, priv->device);
}
#endif
return gst_cuda_handle_context_query (GST_ELEMENT (self),
query, priv->context);
}
static gboolean
gst_nv_encoder_sink_query (GstVideoEncoder * encoder, GstQuery * query)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_nv_encoder_handle_context_query (self, query))
return TRUE;
break;
default:
break;
}
return GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (encoder, query);
}
static gboolean
gst_nv_encoder_src_query (GstVideoEncoder * encoder, GstQuery * query)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_nv_encoder_handle_context_query (self, query))
return TRUE;
break;
default:
break;
}
return GST_VIDEO_ENCODER_CLASS (parent_class)->src_query (encoder, query);
}
static gboolean
gst_nv_encoder_propose_allocation (GstVideoEncoder * encoder, GstQuery * query)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint size;
GstStructure *config;
GstCapsFeatures *features;
guint min_buffers;
gst_query_parse_allocation (query, &caps, NULL);
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;
}
features = gst_caps_get_features (caps, 0);
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode && features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (self, "upstream support d3d11 memory");
pool = gst_d3d11_buffer_pool_new (priv->device);
}
#endif
if (!priv->d3d11_mode && features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) {
GST_DEBUG_OBJECT (self, "upstream support CUDA memory");
pool = gst_cuda_buffer_pool_new (priv->context);
}
if (!pool)
pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
min_buffers = gst_nv_encoder_get_task_size (GST_NV_ENCODER (self));
size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, min_buffers, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_WARNING_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, NULL, &size, NULL, NULL);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size, min_buffers, 0);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_object_unref (pool);
return TRUE;
}
/* called with lock */
static void
gst_nv_encoder_task_reset (GstNvEncoder * self, GstNvEncoderTask * task)
{
GstNvEncoderPrivate *priv = self->priv;
if (!task)
return;
if (task->buffer) {
gst_nv_encoder_device_lock (self);
if (priv->session) {
NvEncUnmapInputResource (priv->session,
task->mapped_resource.mappedResource);
NvEncUnregisterResource (priv->session,
task->register_resource.registeredResource);
}
gst_nv_encoder_device_unlock (self);
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
}
#ifdef G_OS_WIN32
if (task->event_handle)
ResetEvent (task->event_handle);
#endif
task->is_eos = FALSE;
g_queue_push_head (&priv->free_tasks, task);
}
static gboolean
gst_nv_encoder_create_event_handle (GstNvEncoder * self, gpointer session,
gpointer * event_handle)
{
#ifdef G_OS_WIN32
NV_ENC_EVENT_PARAMS event_params = { 0, };
NVENCSTATUS status;
event_params.version = gst_nvenc_get_event_params_version ();
event_params.completionEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
status = NvEncRegisterAsyncEvent (session, &event_params);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self,
"Failed to register async event handle, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
CloseHandle (event_params.completionEvent);
return FALSE;
}
*event_handle = event_params.completionEvent;
#endif
return TRUE;
}
static gboolean
gst_d3d11_encoder_wait_for_event_handle (GstNvEncoder * self,
gpointer event_handle)
{
#ifdef G_OS_WIN32
/* NVCODEC SDK uses 20s */
if (WaitForSingleObject (event_handle, 20000) == WAIT_FAILED) {
GST_ERROR_OBJECT (self, "Failed to wait for completion event");
return FALSE;
}
#endif
return TRUE;
}
static void
gst_nv_encoder_destroy_event_handle (GstNvEncoder * self, gpointer session,
gpointer event_handle)
{
#ifdef G_OS_WIN32
NV_ENC_EVENT_PARAMS event_params = { 0, };
NVENCSTATUS status;
event_params.version = gst_nvenc_get_event_params_version ();
event_params.completionEvent = event_handle;
status = NvEncUnregisterAsyncEvent (session, &event_params);
CloseHandle (event_handle);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self,
"Failed to unregister async event handle, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
}
#endif
}
static void
gst_nv_encoder_task_clear (GstNvEncoderTask * task)
{
GstNvEncoder *self;
GstNvEncoderPrivate *priv;
if (!task)
return;
self = task->encoder;
priv = self->priv;
if (priv->session) {
gst_nv_encoder_device_lock (self);
if (task->buffer) {
NvEncUnmapInputResource (priv->session,
task->mapped_resource.mappedResource);
NvEncUnregisterResource (priv->session,
task->register_resource.registeredResource);
}
if (task->output_ptr)
NvEncDestroyBitstreamBuffer (priv->session, task->output_ptr);
if (task->input_buffer.inputBuffer)
NvEncDestroyInputBuffer (priv->session, task->input_buffer.inputBuffer);
if (task->event_handle) {
gst_nv_encoder_destroy_event_handle (self, priv->session,
task->event_handle);
}
gst_nv_encoder_device_unlock (self);
}
if (task->buffer) {
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
}
memset (task, 0, sizeof (GstNvEncoderTask));
}
static NV_ENC_PIC_STRUCT
gst_nv_encoder_get_pic_struct (GstNvEncoder * self, GstBuffer * buffer)
{
GstNvEncoderPrivate *priv = self->priv;
GstVideoInfo *info = &priv->input_state->info;
if (!GST_VIDEO_INFO_IS_INTERLACED (info))
return NV_ENC_PIC_STRUCT_FRAME;
if (GST_VIDEO_INFO_INTERLACE_MODE (info) == GST_VIDEO_INTERLACE_MODE_MIXED) {
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_VIDEO_BUFFER_FLAG_INTERLACED)) {
return NV_ENC_PIC_STRUCT_FRAME;
}
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_VIDEO_BUFFER_FLAG_TFF))
return NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
return NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
}
switch (GST_VIDEO_INFO_FIELD_ORDER (info)) {
case GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST:
return NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
break;
case GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST:
return NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
break;
default:
break;
}
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_VIDEO_BUFFER_FLAG_TFF))
return NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
return NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
}
static GstFlowReturn
gst_nv_encoder_encode_frame (GstNvEncoder * self,
GstVideoCodecFrame * frame, GstNvEncoderTask * task)
{
GstNvEncoderPrivate *priv = self->priv;
NV_ENC_PIC_PARAMS pic_params = { 0, };
NVENCSTATUS status;
guint retry_count = 0;
const guint retry_threshold = 100;
pic_params.version = gst_nvenc_get_pic_params_version ();
if (task->buffer) {
pic_params.inputWidth = task->register_resource.width;
pic_params.inputHeight = task->register_resource.height;
pic_params.inputPitch = task->register_resource.pitch;
pic_params.inputBuffer = task->mapped_resource.mappedResource;
pic_params.bufferFmt = task->mapped_resource.mappedBufferFmt;
} else {
pic_params.inputWidth = task->input_buffer.width;
pic_params.inputHeight = task->input_buffer.height;
pic_params.inputPitch = task->lk_input_buffer.pitch;
pic_params.inputBuffer = task->input_buffer.inputBuffer;
pic_params.bufferFmt = task->input_buffer.bufferFmt;
}
pic_params.frameIdx = frame->system_frame_number;
pic_params.inputTimeStamp = frame->pts;
pic_params.inputDuration = frame->duration;
pic_params.outputBitstream = task->output_ptr;
pic_params.completionEvent = task->event_handle;
pic_params.pictureStruct = gst_nv_encoder_get_pic_struct (self, task->buffer);
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame))
pic_params.encodePicFlags = NV_ENC_PIC_FLAG_FORCEIDR;
do {
gst_nv_encoder_device_lock (self);
status = NvEncEncodePicture (priv->session, &pic_params);
gst_nv_encoder_device_unlock (self);
if (status == NV_ENC_ERR_ENCODER_BUSY) {
if (retry_count < 100) {
GST_DEBUG_OBJECT (self, "GPU is busy, retry count (%d/%d)", retry_count,
retry_threshold);
retry_count++;
/* Magic number 1ms */
g_usleep (1000);
continue;
} else {
GST_ERROR_OBJECT (self, "GPU is keep busy, give up");
break;
}
}
break;
} while (TRUE);
GST_NV_ENCODER_LOCK (self);
if (status != NV_ENC_SUCCESS && status != NV_ENC_ERR_NEED_MORE_INPUT) {
GST_ERROR_OBJECT (self, "Encode return %" GST_NVENC_STATUS_FORMAT,
GST_NVENC_STATUS_ARGS (status));
gst_nv_encoder_task_reset (self, task);
GST_NV_ENCODER_UNLOCK (self);
return GST_FLOW_ERROR;
}
gst_video_codec_frame_set_user_data (frame, task, NULL);
g_queue_push_tail (&priv->output_tasks, task);
g_cond_broadcast (&priv->cond);
GST_NV_ENCODER_UNLOCK (self);
return GST_FLOW_OK;
}
static GstVideoCodecFrame *
gst_nv_encoder_find_output_frame (GstVideoEncoder * self,
GstNvEncoderTask * task)
{
GList *frames, *iter;
GstVideoCodecFrame *ret = NULL;
frames = gst_video_encoder_get_frames (self);
for (iter = frames; iter; iter = g_list_next (iter)) {
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) iter->data;
GstNvEncoderTask *other = (GstNvEncoderTask *)
gst_video_codec_frame_get_user_data (frame);
if (!other)
continue;
if (other == task) {
ret = frame;
break;
}
}
if (ret)
gst_video_codec_frame_ref (ret);
if (frames)
g_list_free_full (frames, (GDestroyNotify) gst_video_codec_frame_unref);
return ret;
}
static gpointer
gst_nv_encoder_thread_func (GstNvEncoder * self)
{
GstVideoEncoder *encoder = GST_VIDEO_ENCODER (self);
GstNvEncoderClass *klass = GST_NV_ENCODER_GET_CLASS (self);
GstNvEncoderPrivate *priv = self->priv;
GstNvEncoderTask *task = NULL;
do {
NV_ENC_LOCK_BITSTREAM bitstream = { 0, };
NVENCSTATUS status;
GstVideoCodecFrame *frame;
GstFlowReturn ret;
GST_NV_ENCODER_LOCK (self);
while ((task = (GstNvEncoderTask *)
g_queue_pop_head (&priv->output_tasks)) == NULL) {
g_cond_wait (&priv->cond, &priv->lock);
}
GST_NV_ENCODER_UNLOCK (self);
if (task->event_handle) {
if (!gst_d3d11_encoder_wait_for_event_handle (self, task->event_handle)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to wait for event signal"));
goto error;
}
}
if (task->is_eos) {
GST_INFO_OBJECT (self, "Got EOS packet");
GST_NV_ENCODER_LOCK (self);
gst_nv_encoder_task_reset (self, task);
g_cond_broadcast (&priv->cond);
GST_NV_ENCODER_UNLOCK (self);
goto exit_thread;
}
frame = gst_nv_encoder_find_output_frame (encoder, task);
if (!frame) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to find associated codec frame"));
goto error;
}
if (!gst_nv_encoder_device_lock (self)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to lock device"));
goto error;
}
bitstream.version = gst_nvenc_get_lock_bitstream_version ();
bitstream.outputBitstream = task->output_ptr;
status = NvEncLockBitstream (priv->session, &bitstream);
if (status != NV_ENC_SUCCESS) {
gst_nv_encoder_device_unlock (self);
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to lock bitstream, status: %" GST_NVENC_STATUS_FORMAT,
GST_NVENC_STATUS_ARGS (status)));
goto error;
}
if (klass->create_output_buffer) {
frame->output_buffer = klass->create_output_buffer (self, &bitstream);
} else {
frame->output_buffer =
gst_buffer_new_memdup (bitstream.bitstreamBufferPtr,
bitstream.bitstreamSizeInBytes);
}
GST_BUFFER_FLAG_SET (frame->output_buffer, GST_BUFFER_FLAG_MARKER);
if (bitstream.pictureType == NV_ENC_PIC_TYPE_IDR)
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
NvEncUnlockBitstream (priv->session, task->output_ptr);
gst_nv_encoder_device_unlock (self);
frame->dts = frame->pts - priv->dts_offset;
frame->pts = bitstream.outputTimeStamp;
frame->duration = bitstream.outputDuration;
ret = gst_video_encoder_finish_frame (encoder, frame);
if (ret != GST_FLOW_OK) {
GST_INFO_OBJECT (self,
"Finish frame returned %s", gst_flow_get_name (ret));
}
GST_NV_ENCODER_LOCK (self);
gst_nv_encoder_task_reset (self, task);
priv->last_flow = ret;
g_cond_broadcast (&priv->cond);
GST_NV_ENCODER_UNLOCK (self);
if (ret != GST_FLOW_OK) {
GST_INFO_OBJECT (self, "Push returned %s", gst_flow_get_name (ret));
goto exit_thread;
}
} while (TRUE);
exit_thread:
{
GST_INFO_OBJECT (self, "Exiting thread");
return NULL;
}
error:
{
GST_NV_ENCODER_LOCK (self);
gst_nv_encoder_task_reset (self, task);
priv->last_flow = GST_FLOW_ERROR;
g_cond_broadcast (&priv->cond);
GST_NV_ENCODER_UNLOCK (self);
goto exit_thread;
}
}
static guint
gst_nv_encoder_calculate_task_pool_size (GstNvEncoder * self,
NV_ENC_CONFIG * config)
{
guint num_tasks;
/* At least 4 surfaces are required as documented by Nvidia Encoder guide */
num_tasks = 4;
/* lookahead depth */
num_tasks += config->rcParams.lookaheadDepth;
/* B frames + 1 */
num_tasks += MAX (0, config->frameIntervalP - 1) + 1;
GST_DEBUG_OBJECT (self, "Calculated task pool size: %d "
"(lookahead %d, frameIntervalP %d)",
num_tasks, config->rcParams.lookaheadDepth, config->frameIntervalP);
return num_tasks;
}
static gboolean
gst_nv_encoder_open_encode_session (GstNvEncoder * self, gpointer * session)
{
GstNvEncoderPrivate *priv = self->priv;
NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS session_params = { 0, };
session_params.version =
gst_nvenc_get_open_encode_session_ex_params_version ();
session_params.apiVersion = gst_nvenc_get_api_version ();
NVENCSTATUS status;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode) {
session_params.deviceType = NV_ENC_DEVICE_TYPE_DIRECTX;
session_params.device = gst_d3d11_device_get_device_handle (priv->device);
} else
#endif
{
session_params.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
session_params.device = gst_cuda_context_get_handle (priv->context);
}
status = NvEncOpenEncodeSessionEx (&session_params, session);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to open session, status: %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
return FALSE;
}
return TRUE;
}
#ifdef GST_CUDA_HAS_D3D
static GstBufferPool *
gst_nv_encoder_create_d3d11_pool (GstNvEncoder * self,
GstVideoCodecState * state)
{
GstNvEncoderPrivate *priv = self->priv;
GstStructure *config;
GstBufferPool *pool = NULL;
GstD3D11AllocationParams *params;
params = gst_d3d11_allocation_params_new (priv->device, &state->info,
(GstD3D11AllocationFlags) 0, 0);
params->desc[0].MiscFlags = D3D11_RESOURCE_MISC_SHARED;
pool = gst_d3d11_buffer_pool_new (priv->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_d3d11_allocation_params (config, params);
gst_d3d11_allocation_params_free (params);
gst_buffer_pool_config_set_params (config, state->caps,
GST_VIDEO_INFO_SIZE (&state->info), 0, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set pool config");
gst_object_unref (pool);
return NULL;
}
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (self, "Failed to set active");
gst_object_unref (pool);
return NULL;
}
return pool;
}
#endif
static GstBufferPool *
gst_nv_encoder_create_pool (GstNvEncoder * self, GstVideoCodecState * state)
{
GstNvEncoderPrivate *priv = self->priv;
GstStructure *config;
GstBufferPool *pool = NULL;
#ifdef GST_CUDA_HAS_D3D
if (priv->d3d11_mode)
return gst_nv_encoder_create_d3d11_pool (self, state);
#endif
pool = gst_cuda_buffer_pool_new (priv->context);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, state->caps,
GST_VIDEO_INFO_SIZE (&state->info), 0, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set pool config");
gst_object_unref (pool);
return NULL;
}
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (self, "Failed to set active");
gst_object_unref (pool);
return NULL;
}
return pool;
}
static gboolean
gst_nv_encoder_init_session (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv = self->priv;
GstNvEncoderClass *klass = GST_NV_ENCODER_GET_CLASS (self);
GstVideoCodecState *state = priv->input_state;
GstVideoInfo *info = &state->info;
NVENCSTATUS status;
guint task_pool_size;
gint fps_n, fps_d;
GstClockTime frame_duration, min_latency, max_latency;
guint i;
gst_nv_encoder_reset (self);
memset (&priv->init_params, 0, sizeof (NV_ENC_INITIALIZE_PARAMS));
memset (&priv->config, 0, sizeof (NV_ENC_CONFIG));
priv->internal_pool = gst_nv_encoder_create_pool (self, state);
if (!priv->internal_pool) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to create internal pool"));
return FALSE;
}
if (!gst_nv_encoder_device_lock (self)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL), ("Failed to lock device"));
gst_nv_encoder_reset (self);
return FALSE;
}
if (!gst_nv_encoder_open_encode_session (self, &priv->session)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to open session"));
goto error;
}
if (!klass->set_format (self, state, priv->session, &priv->init_params,
&priv->config)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL), ("Failed to set format"));
goto error;
}
priv->init_params.encodeConfig = &priv->config;
status = NvEncInitializeEncoder (priv->session, &priv->init_params);
if (status != NV_ENC_SUCCESS) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to init encoder, status: %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status)));
goto error;
}
task_pool_size = gst_nv_encoder_calculate_task_pool_size (self,
&priv->config);
g_array_set_size (priv->task_pool, task_pool_size);
for (i = 0; i < task_pool_size; i++) {
NV_ENC_CREATE_BITSTREAM_BUFFER buffer_params = { 0, };
GstNvEncoderTask *task = (GstNvEncoderTask *)
& g_array_index (priv->task_pool, GstNvEncoderTask, i);
task->encoder = self;
buffer_params.version = gst_nvenc_get_create_bitstream_buffer_version ();
status = NvEncCreateBitstreamBuffer (priv->session, &buffer_params);
if (status != NV_ENC_SUCCESS) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to create bitstream buffer, status: %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status)));
goto error;
}
task->output_ptr = buffer_params.bitstreamBuffer;
if (priv->init_params.enableEncodeAsync) {
if (!gst_nv_encoder_create_event_handle (self,
priv->session, &task->event_handle)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to create async event handle"));
goto error;
}
}
g_queue_push_tail (&priv->free_tasks, task);
}
gst_nv_encoder_device_unlock (self);
if (!klass->set_output_state (self, priv->input_state, priv->session)) {
GST_ELEMENT_ERROR (self, STREAM, ENCODE, (NULL),
("Failed to set output state"));
gst_nv_encoder_reset (self);
return FALSE;
}
priv->encoding_thread = g_thread_new ("GstNvEncoderThread",
(GThreadFunc) gst_nv_encoder_thread_func, self);
if (info->fps_n > 0 && info->fps_d > 0) {
fps_n = info->fps_n;
fps_d = info->fps_d;
} else {
fps_n = 25;
fps_d = 1;
}
frame_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
priv->dts_offset = 0;
/* Calculate DTS offset for B frame. NVENC does not provide DTS */
if (priv->config.frameIntervalP > 1)
priv->dts_offset = frame_duration * (priv->config.frameIntervalP - 1);
min_latency = priv->dts_offset +
priv->config.rcParams.lookaheadDepth * frame_duration;
max_latency = frame_duration * priv->task_pool->len;
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (self),
min_latency, max_latency);
return TRUE;
error:
gst_nv_encoder_device_unlock (self);
gst_nv_encoder_reset (self);
return FALSE;
}
static gboolean
gst_nv_encoder_reconfigure_session (GstNvEncoder * self)
{
GstNvEncoderPrivate *priv = self->priv;
NV_ENC_RECONFIGURE_PARAMS params = { 0, };
NVENCSTATUS status;
if (!priv->session) {
GST_WARNING_OBJECT (self,
"Encoding session was not configured, open session");
gst_nv_encoder_drain (self, TRUE);
return gst_nv_encoder_init_session (self);
}
params.version = gst_nvenc_get_reconfigure_params_version ();
params.reInitEncodeParams = priv->init_params;
params.reInitEncodeParams.encodeConfig = &priv->config;
status = NvEncReconfigureEncoder (priv->session, &params);
if (status != NV_ENC_SUCCESS) {
GST_WARNING_OBJECT (self, "Failed to reconfigure encoder, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
gst_nv_encoder_drain (self, TRUE);
return gst_nv_encoder_init_session (self);
}
return TRUE;
}
static gboolean
gst_nv_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
gst_nv_encoder_drain (self, TRUE);
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;
return gst_nv_encoder_init_session (self);
}
static NV_ENC_BUFFER_FORMAT
gst_nv_encoder_get_buffer_format (GstNvEncoder * self, GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_NV12:
return NV_ENC_BUFFER_FORMAT_NV12;
case GST_VIDEO_FORMAT_Y444:
return NV_ENC_BUFFER_FORMAT_YUV444;
case GST_VIDEO_FORMAT_P010_10LE:
return NV_ENC_BUFFER_FORMAT_YUV420_10BIT;
case GST_VIDEO_FORMAT_Y444_16LE:
return NV_ENC_BUFFER_FORMAT_YUV444_10BIT;
default:
GST_ERROR_OBJECT (self, "Unexpected format %s",
gst_video_format_to_string (format));
g_assert_not_reached ();
break;
}
return NV_ENC_BUFFER_FORMAT_UNDEFINED;
}
static GstFlowReturn
gst_nv_encoder_copy_system (GstNvEncoder * self, const GstVideoInfo * info,
GstBuffer * buffer, gpointer session, GstNvEncoderTask * task)
{
NVENCSTATUS status;
GstVideoFrame frame;
guint8 *dst_data;
NV_ENC_BUFFER_FORMAT format;
format =
gst_nv_encoder_get_buffer_format (self, GST_VIDEO_INFO_FORMAT (info));
if (format == NV_ENC_BUFFER_FORMAT_UNDEFINED)
return GST_FLOW_ERROR;
if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Failed to map buffer");
return GST_FLOW_ERROR;
}
if (!task->input_buffer.inputBuffer) {
NV_ENC_CREATE_INPUT_BUFFER input_buffer = { 0, };
input_buffer.version = gst_nvenc_get_create_input_buffer_version ();
input_buffer.width = info->width;
input_buffer.height = info->height;
input_buffer.bufferFmt = format;
status = NvEncCreateInputBuffer (session, &input_buffer);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to create input buffer, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
gst_video_frame_unmap (&frame);
return GST_FLOW_ERROR;
}
task->input_buffer = input_buffer;
}
task->lk_input_buffer.version = gst_nvenc_get_lock_input_buffer_version ();
task->lk_input_buffer.inputBuffer = task->input_buffer.inputBuffer;
status = NvEncLockInputBuffer (session, &task->lk_input_buffer);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to lock input buffer, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
gst_video_frame_unmap (&frame);
return GST_FLOW_ERROR;
}
dst_data = (guint8 *) task->lk_input_buffer.bufferDataPtr;
for (guint i = 0; i < GST_VIDEO_FRAME_N_PLANES (&frame); i++) {
guint8 *src_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&frame, i);
guint width_in_bytes = GST_VIDEO_FRAME_COMP_WIDTH (&frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&frame, i);
guint stride = GST_VIDEO_FRAME_PLANE_STRIDE (&frame, i);
guint height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, i);
for (guint j = 0; j < height; j++) {
memcpy (dst_data, src_data, width_in_bytes);
dst_data += task->lk_input_buffer.pitch;
src_data += stride;
}
}
NvEncUnlockInputBuffer (session, task->input_buffer.inputBuffer);
gst_video_frame_unmap (&frame);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_nv_encoder_prepare_task_input_cuda (GstNvEncoder * self,
const GstVideoInfo * info, GstBuffer * buffer, gpointer session,
GstNvEncoderTask * task)
{
GstNvEncoderPrivate *priv = self->priv;
GstMemory *mem;
GstCudaMemory *cmem;
NVENCSTATUS status;
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_cuda_memory (mem)) {
GST_LOG_OBJECT (self, "Not a CUDA buffer, system copy");
return gst_nv_encoder_copy_system (self, info, buffer, session, task);
}
cmem = GST_CUDA_MEMORY_CAST (mem);
if (cmem->context != priv->context) {
GST_LOG_OBJECT (self, "Different context, system copy");
return gst_nv_encoder_copy_system (self, info, buffer, session, task);
}
task->buffer = gst_buffer_ref (buffer);
if (!gst_buffer_map (task->buffer, &task->map_info,
(GstMapFlags) (GST_MAP_READ | GST_MAP_CUDA))) {
GST_ERROR_OBJECT (self, "Failed to map buffer");
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
cmem = (GstCudaMemory *) gst_buffer_peek_memory (task->buffer, 0);
task->register_resource.version = gst_nvenc_get_register_resource_version ();
task->register_resource.resourceType =
NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR;
task->register_resource.width = cmem->info.width;
task->register_resource.height = cmem->info.height;
task->register_resource.pitch = cmem->info.stride[0];
task->register_resource.resourceToRegister = task->map_info.data;
task->register_resource.bufferFormat =
gst_nv_encoder_get_buffer_format (self, GST_VIDEO_INFO_FORMAT (info));
if (task->register_resource.bufferFormat == NV_ENC_BUFFER_FORMAT_UNDEFINED)
return GST_FLOW_ERROR;
status = NvEncRegisterResource (session, &task->register_resource);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to register resource, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
task->mapped_resource.version = gst_nvenc_get_map_input_resource_version ();
task->mapped_resource.registeredResource =
task->register_resource.registeredResource;
status = NvEncMapInputResource (session, &task->mapped_resource);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to map input resource, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
NvEncUnregisterResource (session,
task->register_resource.registeredResource);
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
#ifdef GST_CUDA_HAS_D3D
static GstBuffer *
gst_nv_encoder_copy_d3d11 (GstNvEncoder * self,
GstBuffer * src_buffer, GstBufferPool * pool, gboolean shared)
{
GstNvEncoderPrivate *priv = self->priv;
D3D11_TEXTURE2D_DESC src_desc, dst_desc;
D3D11_BOX src_box;
guint subresource_idx;
GstMemory *src_mem, *dst_mem;
GstMapInfo src_info, dst_info;
ID3D11Texture2D *src_tex, *dst_tex;
ID3D11Device *device_handle;
ID3D11DeviceContext *device_context;
GstBuffer *dst_buffer;
GstFlowReturn ret;
ComPtr < IDXGIResource > dxgi_resource;
ComPtr < ID3D11Texture2D > shared_texture;
ComPtr < ID3D11Query > query;
D3D11_QUERY_DESC query_desc;
BOOL sync_done = FALSE;
HANDLE shared_handle;
GstD3D11Device *device;
HRESULT hr;
ret = gst_buffer_pool_acquire_buffer (pool, &dst_buffer, NULL);
if (ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to acquire buffer");
return NULL;
}
src_mem = gst_buffer_peek_memory (src_buffer, 0);
dst_mem = gst_buffer_peek_memory (dst_buffer, 0);
device = GST_D3D11_MEMORY_CAST (src_mem)->device;
device_handle = gst_d3d11_device_get_device_handle (device);
device_context = gst_d3d11_device_get_device_context_handle (device);
if (!gst_memory_map (src_mem, &src_info,
(GstMapFlags) (GST_MAP_READ | GST_MAP_D3D11))) {
GST_WARNING ("Failed to map src memory");
gst_buffer_unref (dst_buffer);
return NULL;
}
if (!gst_memory_map (dst_mem, &dst_info,
(GstMapFlags) (GST_MAP_WRITE | GST_MAP_D3D11))) {
GST_WARNING ("Failed to map dst memory");
gst_memory_unmap (src_mem, &src_info);
gst_buffer_unref (dst_buffer);
return NULL;
}
src_tex = (ID3D11Texture2D *) src_info.data;
dst_tex = (ID3D11Texture2D *) dst_info.data;
gst_d3d11_memory_get_texture_desc (GST_D3D11_MEMORY_CAST (src_mem),
&src_desc);
gst_d3d11_memory_get_texture_desc (GST_D3D11_MEMORY_CAST (dst_mem),
&dst_desc);
subresource_idx =
gst_d3d11_memory_get_subresource_index (GST_D3D11_MEMORY_CAST (src_mem));
if (shared) {
hr = dst_tex->QueryInterface (IID_PPV_ARGS (&dxgi_resource));
if (!gst_d3d11_result (hr, priv->device)) {
GST_ERROR_OBJECT (self,
"IDXGIResource interface is not available, hr: 0x%x", (guint) hr);
goto error;
}
hr = dxgi_resource->GetSharedHandle (&shared_handle);
if (!gst_d3d11_result (hr, priv->device)) {
GST_ERROR_OBJECT (self, "Failed to get shared handle, hr: 0x%x",
(guint) hr);
goto error;
}
hr = device_handle->OpenSharedResource (shared_handle,
IID_PPV_ARGS (&shared_texture));
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to get shared texture, hr: 0x%x",
(guint) hr);
goto error;
}
dst_tex = shared_texture.Get ();
}
src_box.left = 0;
src_box.top = 0;
src_box.front = 0;
src_box.back = 1;
src_box.right = MIN (src_desc.Width, dst_desc.Width);
src_box.bottom = MIN (src_desc.Height, dst_desc.Height);
if (shared) {
query_desc.Query = D3D11_QUERY_EVENT;
query_desc.MiscFlags = 0;
hr = device_handle->CreateQuery (&query_desc, &query);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Couldn't Create event query, hr: 0x%x",
(guint) hr);
goto error;
}
gst_d3d11_device_lock (device);
}
device_context->CopySubresourceRegion (dst_tex, 0,
0, 0, 0, src_tex, subresource_idx, &src_box);
if (shared) {
device_context->End (query.Get ());
do {
hr = device_context->GetData (query.Get (), &sync_done, sizeof (BOOL), 0);
} while (!sync_done && (hr == S_OK || hr == S_FALSE));
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Couldn't sync GPU operation, hr: 0x%x",
(guint) hr);
gst_d3d11_device_unlock (device);
goto error;
}
gst_d3d11_device_unlock (device);
}
gst_memory_unmap (dst_mem, &dst_info);
gst_memory_unmap (src_mem, &src_info);
return dst_buffer;
error:
gst_memory_unmap (dst_mem, &dst_info);
gst_memory_unmap (src_mem, &src_info);
gst_buffer_unref (dst_buffer);
return NULL;
}
static GstBuffer *
gst_nv_encoder_upload_d3d11_frame (GstNvEncoder * self,
const GstVideoInfo * info, GstBuffer * buffer, GstBufferPool * pool)
{
GstD3D11Memory *dmem;
D3D11_TEXTURE2D_DESC desc;
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (buffer, 0);
gst_d3d11_memory_get_texture_desc (dmem, &desc);
if (desc.Usage != D3D11_USAGE_DEFAULT) {
GST_TRACE_OBJECT (self, "Not a default usage texture, d3d11 copy");
return gst_nv_encoder_copy_d3d11 (self, buffer, pool, FALSE);
}
GST_TRACE_OBJECT (self, "Use input buffer without copy");
return gst_buffer_ref (buffer);
}
static GstFlowReturn
gst_nv_encoder_prepare_task_input_d3d11 (GstNvEncoder * self,
const GstVideoInfo * info, GstBuffer * buffer, gpointer session,
GstBufferPool * pool, GstNvEncoderTask * task)
{
GstNvEncoderPrivate *priv = self->priv;
GstMemory *mem;
GstD3D11Memory *dmem;
D3D11_TEXTURE2D_DESC desc;
NVENCSTATUS status;
if (gst_buffer_n_memory (buffer) > 1) {
GST_LOG_OBJECT (self, "Not a native DXGI format, system copy");
return gst_nv_encoder_copy_system (self, info, buffer, session, task);
}
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_LOG_OBJECT (self, "Not a D3D11 buffer, system copy");
return gst_nv_encoder_copy_system (self, info, buffer, session, task);
}
dmem = GST_D3D11_MEMORY_CAST (mem);
if (dmem->device != priv->device) {
gint64 adapter_luid;
g_object_get (dmem->device, "adapter-luid", &adapter_luid, NULL);
if (adapter_luid == priv->dxgi_adapter_luid) {
GST_LOG_OBJECT (self, "Different device but same GPU, copy d3d11");
task->buffer = gst_nv_encoder_copy_d3d11 (self, buffer, pool, TRUE);
} else {
GST_LOG_OBJECT (self, "Different device, system copy");
return gst_nv_encoder_copy_system (self, info, buffer, session, task);
}
}
if (!task->buffer)
task->buffer = gst_nv_encoder_upload_d3d11_frame (self, info, buffer, pool);
if (!task->buffer) {
GST_ERROR_OBJECT (self, "Failed to upload buffer");
return GST_FLOW_ERROR;
}
if (!gst_buffer_map (task->buffer, &task->map_info,
(GstMapFlags) (GST_MAP_READ | GST_MAP_D3D11))) {
GST_ERROR_OBJECT (self, "Failed to map buffer");
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (task->buffer, 0);
gst_d3d11_memory_get_texture_desc (dmem, &desc);
task->register_resource.version = gst_nvenc_get_register_resource_version ();
task->register_resource.resourceType = NV_ENC_INPUT_RESOURCE_TYPE_DIRECTX;
task->register_resource.width = desc.Width;
task->register_resource.height = desc.Height;
switch (desc.Format) {
case DXGI_FORMAT_NV12:
task->register_resource.bufferFormat = NV_ENC_BUFFER_FORMAT_NV12;
break;
case DXGI_FORMAT_P010:
task->register_resource.bufferFormat = NV_ENC_BUFFER_FORMAT_YUV420_10BIT;
break;
default:
GST_ERROR_OBJECT (self, "Unexpected DXGI format %d", desc.Format);
g_assert_not_reached ();
return GST_FLOW_ERROR;
}
task->register_resource.subResourceIndex =
gst_d3d11_memory_get_subresource_index (dmem);
task->register_resource.resourceToRegister =
gst_d3d11_memory_get_resource_handle (dmem);
status = NvEncRegisterResource (session, &task->register_resource);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to register resource, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
task->mapped_resource.version = gst_nvenc_get_map_input_resource_version ();
task->mapped_resource.registeredResource =
task->register_resource.registeredResource;
status = NvEncMapInputResource (session, &task->mapped_resource);
if (status != NV_ENC_SUCCESS) {
GST_ERROR_OBJECT (self, "Failed to map input resource, status %"
GST_NVENC_STATUS_FORMAT, GST_NVENC_STATUS_ARGS (status));
NvEncUnregisterResource (session,
task->register_resource.registeredResource);
gst_buffer_unmap (task->buffer, &task->map_info);
gst_clear_buffer (&task->buffer);
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
#endif
static GstFlowReturn
gst_nv_encoder_prepare_task_input (GstNvEncoder * self,
const GstVideoInfo * info, GstBuffer * buffer, gpointer session,
GstBufferPool * pool, GstNvEncoderTask * task)
{
#ifdef GST_CUDA_HAS_D3D
GstNvEncoderPrivate *priv = self->priv;
if (priv->d3d11_mode) {
return gst_nv_encoder_prepare_task_input_d3d11 (self, info, buffer,
session, pool, task);
}
#endif
return gst_nv_encoder_prepare_task_input_cuda (self, info, buffer,
session, task);
}
static GstFlowReturn
gst_nv_encoder_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
GstNvEncoderClass *klass = GST_NV_ENCODER_GET_CLASS (self);
GstFlowReturn ret = GST_FLOW_ERROR;
GstNvEncoderTask *task = NULL;
GstNvEncoderReconfigure reconfig;
GST_TRACE_OBJECT (self, "Handle frame");
GST_NV_ENCODER_LOCK (self);
ret = priv->last_flow;
GST_NV_ENCODER_UNLOCK (self);
if (ret != GST_FLOW_OK) {
GST_INFO_OBJECT (self, "Last flow was %s", gst_flow_get_name (ret));
gst_video_encoder_finish_frame (encoder, frame);
return ret;
}
if (!priv->session && !gst_nv_encoder_init_session (self)) {
GST_ERROR_OBJECT (self, "Encoder object was not configured");
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_NOT_NEGOTIATED;
}
reconfig = klass->check_reconfigure (self, &priv->config);
switch (reconfig) {
case GST_NV_ENCODER_RECONFIGURE_BITRATE:
if (!gst_nv_encoder_reconfigure_session (self)) {
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_NOT_NEGOTIATED;
}
break;
case GST_NV_ENCODER_RECONFIGURE_FULL:
{
gst_nv_encoder_drain (self, TRUE);
if (!gst_nv_encoder_init_session (self)) {
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_NOT_NEGOTIATED;
}
break;
}
default:
break;
}
/* Release stream lock temporarily for encoding thread to be able to
* push encoded data */
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
ret = gst_nv_encoder_get_free_task (self, &task, TRUE);
GST_VIDEO_ENCODER_STREAM_LOCK (self);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (self, "Last flow was %s", gst_flow_get_name (ret));
gst_video_encoder_finish_frame (encoder, frame);
return ret;
}
if (!gst_nv_encoder_device_lock (self)) {
GST_ERROR_OBJECT (self, "Failed to lock device");
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
g_assert (task->buffer == NULL);
ret = gst_nv_encoder_prepare_task_input (self, &priv->input_state->info,
frame->input_buffer, priv->session, priv->internal_pool, task);
gst_nv_encoder_device_unlock (self);
if (ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to upload frame");
GST_NV_ENCODER_LOCK (self);
gst_nv_encoder_task_reset (self, task);
GST_NV_ENCODER_UNLOCK (self);
gst_video_encoder_finish_frame (encoder, frame);
return ret;
}
ret = gst_nv_encoder_encode_frame (self, frame, task);
if (ret != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Failed to encode frame");
gst_video_encoder_finish_frame (encoder, frame);
return ret;
}
gst_video_codec_frame_unref (frame);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_nv_encoder_finish (GstVideoEncoder * encoder)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GST_DEBUG_OBJECT (self, "Finish");
gst_nv_encoder_drain (self, TRUE);
return GST_FLOW_OK;
}
static gboolean
gst_nv_encoder_flush (GstVideoEncoder * encoder)
{
GstNvEncoder *self = GST_NV_ENCODER (encoder);
GstNvEncoderPrivate *priv = self->priv;
GST_DEBUG_OBJECT (self, "Flush");
gst_nv_encoder_drain (self, TRUE);
priv->last_flow = GST_FLOW_OK;
return TRUE;
}
guint
gst_nv_encoder_get_task_size (GstNvEncoder * encoder)
{
g_return_val_if_fail (GST_IS_NV_ENCODER (encoder), 0);
return encoder->priv->task_pool->len;
}
void
gst_nv_encoder_set_cuda_device_id (GstNvEncoder * encoder, guint device_id)
{
g_return_if_fail (GST_IS_NV_ENCODER (encoder));
encoder->priv->cuda_device_id = device_id;
encoder->priv->d3d11_mode = FALSE;
}
void
gst_nv_encoder_set_dxgi_adapter_luid (GstNvEncoder * encoder,
gint64 adapter_luid)
{
g_return_if_fail (GST_IS_NV_ENCODER (encoder));
encoder->priv->dxgi_adapter_luid = adapter_luid;
encoder->priv->d3d11_mode = TRUE;
}
GType
gst_nv_encoder_preset_get_type (void)
{
static GType preset_type = 0;
static const GEnumValue presets[] = {
{GST_NV_ENCODER_PRESET_DEFAULT, "Default", "default"},
{GST_NV_ENCODER_PRESET_HP, "High Performance", "hp"},
{GST_NV_ENCODER_PRESET_HQ, "High Quality", "hq"},
{GST_NV_ENCODER_PRESET_LOW_LATENCY_DEFAULT, "Low Latency", "low-latency"},
{GST_NV_ENCODER_PRESET_LOW_LATENCY_HQ, "Low Latency, High Quality",
"low-latency-hq"},
{GST_NV_ENCODER_PRESET_LOW_LATENCY_HP, "Low Latency, High Performance",
"low-latency-hp"},
{GST_NV_ENCODER_PRESET_LOSSLESS_DEFAULT, "Lossless", "lossless"},
{GST_NV_ENCODER_PRESET_LOSSLESS_HP, "Lossless, High Performance",
"lossless-hp"},
{0, NULL, NULL},
};
if (g_once_init_enter (&preset_type)) {
GType type = g_enum_register_static ("GstNvEncoderPreset", presets);
g_once_init_leave (&preset_type, type);
}
return preset_type;
}
void
gst_nv_encoder_preset_to_guid (GstNvEncoderPreset preset, GUID * guid)
{
switch (preset) {
case GST_NV_ENCODER_PRESET_DEFAULT:
*guid = NV_ENC_PRESET_DEFAULT_GUID;
break;
case GST_NV_ENCODER_PRESET_HP:
*guid = NV_ENC_PRESET_HP_GUID;
break;
case GST_NV_ENCODER_PRESET_HQ:
*guid = NV_ENC_PRESET_HQ_GUID;
break;
case GST_NV_ENCODER_PRESET_LOW_LATENCY_DEFAULT:
*guid = NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID;
break;
case GST_NV_ENCODER_PRESET_LOW_LATENCY_HQ:
*guid = NV_ENC_PRESET_LOW_LATENCY_HQ_GUID;
break;
case GST_NV_ENCODER_PRESET_LOW_LATENCY_HP:
*guid = NV_ENC_PRESET_LOW_LATENCY_HP_GUID;
break;
case GST_NV_ENCODER_PRESET_LOSSLESS_DEFAULT:
*guid = NV_ENC_PRESET_LOSSLESS_DEFAULT_GUID;
break;
case GST_NV_ENCODER_PRESET_LOSSLESS_HP:
*guid = NV_ENC_PRESET_LOSSLESS_HP_GUID;
break;
default:
break;
}
*guid = NV_ENC_PRESET_DEFAULT_GUID;
}
GType
gst_nv_encoder_rc_mode_get_type (void)
{
static GType rc_mode_type = 0;
static const GEnumValue rc_modes[] = {
{GST_NV_ENCODER_RC_MODE_CONSTQP, "Constant Quantization", "cqp"},
{GST_NV_ENCODER_RC_MODE_VBR, "Variable Bit Rate", "vbr"},
{GST_NV_ENCODER_RC_MODE_CBR, "Constant Bit Rate", "cbr"},
{GST_NV_ENCODER_RC_MODE_CBR_LOWDELAY_HQ,
"Low-Delay CBR, High Quality", "cbr-ld-hq"},
{GST_NV_ENCODER_RC_MODE_CBR_HQ, "CBR, High Quality (slower)", "cbr-hq"},
{GST_NV_ENCODER_RC_MODE_VBR_HQ, "VBR, High Quality (slower)", "vbr-hq"},
{0, NULL, NULL},
};
if (g_once_init_enter (&rc_mode_type)) {
GType type = g_enum_register_static ("GstNvEncoderRCMode", rc_modes);
g_once_init_leave (&rc_mode_type, type);
}
return rc_mode_type;
}
NV_ENC_PARAMS_RC_MODE
gst_nv_encoder_rc_mode_to_native (GstNvEncoderRCMode rc_mode)
{
switch (rc_mode) {
case GST_NV_ENCODER_RC_MODE_CONSTQP:
return NV_ENC_PARAMS_RC_CONSTQP;
case GST_NV_ENCODER_RC_MODE_VBR:
return NV_ENC_PARAMS_RC_VBR;
case GST_NV_ENCODER_RC_MODE_CBR:
return NV_ENC_PARAMS_RC_CBR;
case GST_NV_ENCODER_RC_MODE_CBR_LOWDELAY_HQ:
return NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ;
case GST_NV_ENCODER_RC_MODE_CBR_HQ:
return NV_ENC_PARAMS_RC_CBR_HQ;
case GST_NV_ENCODER_RC_MODE_VBR_HQ:
return NV_ENC_PARAMS_RC_VBR_HQ;
default:
break;
}
return NV_ENC_PARAMS_RC_VBR;
}
const gchar *
gst_nv_encoder_status_to_string (NVENCSTATUS status)
{
#define CASE(err) \
case err: \
return G_STRINGIFY (err);
switch (status) {
CASE (NV_ENC_SUCCESS);
CASE (NV_ENC_ERR_NO_ENCODE_DEVICE);
CASE (NV_ENC_ERR_UNSUPPORTED_DEVICE);
CASE (NV_ENC_ERR_INVALID_ENCODERDEVICE);
CASE (NV_ENC_ERR_INVALID_DEVICE);
CASE (NV_ENC_ERR_DEVICE_NOT_EXIST);
CASE (NV_ENC_ERR_INVALID_PTR);
CASE (NV_ENC_ERR_INVALID_EVENT);
CASE (NV_ENC_ERR_INVALID_PARAM);
CASE (NV_ENC_ERR_INVALID_CALL);
CASE (NV_ENC_ERR_OUT_OF_MEMORY);
CASE (NV_ENC_ERR_ENCODER_NOT_INITIALIZED);
CASE (NV_ENC_ERR_UNSUPPORTED_PARAM);
CASE (NV_ENC_ERR_LOCK_BUSY);
CASE (NV_ENC_ERR_NOT_ENOUGH_BUFFER);
CASE (NV_ENC_ERR_INVALID_VERSION);
CASE (NV_ENC_ERR_MAP_FAILED);
CASE (NV_ENC_ERR_NEED_MORE_INPUT);
CASE (NV_ENC_ERR_ENCODER_BUSY);
CASE (NV_ENC_ERR_EVENT_NOT_REGISTERD);
CASE (NV_ENC_ERR_GENERIC);
CASE (NV_ENC_ERR_INCOMPATIBLE_CLIENT_KEY);
CASE (NV_ENC_ERR_UNIMPLEMENTED);
CASE (NV_ENC_ERR_RESOURCE_REGISTER_FAILED);
CASE (NV_ENC_ERR_RESOURCE_NOT_REGISTERED);
CASE (NV_ENC_ERR_RESOURCE_NOT_MAPPED);
default:
break;
}
#undef CASE
return "Unknown";
}
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