gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstnvencobject.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnvencobject.h"
#include <algorithm>
GST_DEBUG_CATEGORY_EXTERN (gst_nv_encoder_debug);
#define GST_CAT_DEFAULT gst_nv_encoder_debug
/* Both CUDA and D3D11 use the same value */
#define GST_MAP_NVENC (GST_MAP_FLAG_LAST << 1)
#define GST_MAP_READ_NVENC (GstMapFlags)(GST_MAP_READ | GST_MAP_NVENC)
/* *INDENT-OFF* */
static GstNvEncBuffer * gst_nv_enc_buffer_new (const std::string & id,
guint seq_num);
static GstNvEncResource * gst_nv_enc_resource_new (const std::string & id,
guint seq_num);
static GstNvEncTask * gst_nv_enc_task_new (const std::string & id,
guint seq_num);
struct GstNvEncBuffer : public GstMiniObject
{
GstNvEncBuffer (const std::string parent_id, guint seq)
: id (parent_id), seq_num (seq)
{
memset (&buffer, 0, sizeof (NV_ENC_CREATE_INPUT_BUFFER));
memset (&buffer_lock, 0, sizeof (NV_ENC_LOCK_INPUT_BUFFER));
buffer.version = gst_nvenc_get_create_input_buffer_version ();
buffer_lock.version = gst_nvenc_get_lock_input_buffer_version ();
}
std::shared_ptr<GstNvEncObject> object;
NV_ENC_CREATE_INPUT_BUFFER buffer;
NV_ENC_LOCK_INPUT_BUFFER buffer_lock;
bool locked = false;
std::string id;
guint seq_num;
};
GST_DEFINE_MINI_OBJECT_TYPE (GstNvEncBuffer, gst_nv_enc_buffer);
struct GstNvEncResource : public GstMiniObject
{
GstNvEncResource (const std::string & parent_id, guint seq)
: id (parent_id), seq_num (seq)
{
memset (&resource, 0, sizeof (NV_ENC_REGISTER_RESOURCE));
memset (&mapped_resource, 0, sizeof (NV_ENC_MAP_INPUT_RESOURCE));
resource.version = gst_nvenc_get_register_resource_version ();
mapped_resource.version = gst_nvenc_get_map_input_resource_version ();
}
std::weak_ptr<GstNvEncObject> object;
NV_ENC_REGISTER_RESOURCE resource;
NV_ENC_MAP_INPUT_RESOURCE mapped_resource;
std::string id;
guint seq_num;
};
GST_DEFINE_MINI_OBJECT_TYPE (GstNvEncResource, gst_nv_enc_resource);
static void
gst_nv_enc_task_clear_sei (NV_ENC_SEI_PAYLOAD * payload)
{
g_clear_pointer (&payload->payload, g_free);
}
struct GstNvEncTask : public GstMiniObject
{
GstNvEncTask (const std::string & parent_id, guint seq)
: id (parent_id), seq_num (seq)
{
memset (&event_params, 0, sizeof (NV_ENC_EVENT_PARAMS));
memset (&bitstream, 0, sizeof (NV_ENC_LOCK_BITSTREAM));
event_params.version = gst_nvenc_get_event_params_version ();
bitstream.version = gst_nvenc_get_lock_bitstream_version ();
sei_payload = g_array_new (FALSE, FALSE, sizeof (NV_ENC_SEI_PAYLOAD));
g_array_set_clear_func (sei_payload,
(GDestroyNotify) gst_nv_enc_task_clear_sei);
}
~GstNvEncTask ()
{
if (sei_payload)
g_array_unref (sei_payload);
}
std::shared_ptr<GstNvEncObject> object;
GstNvEncBuffer *buffer = nullptr;
GstNvEncResource *resource = nullptr;
GstBuffer *gst_buffer = nullptr;;
GstMapInfo info;
NV_ENC_DEVICE_TYPE device_type = NV_ENC_DEVICE_TYPE_CUDA;
NV_ENC_EVENT_PARAMS event_params;
NV_ENC_OUTPUT_PTR output_ptr = nullptr;
NV_ENC_LOCK_BITSTREAM bitstream;
bool locked = false;
std::string id;
guint seq_num;
GArray *sei_payload;
};
GST_DEFINE_MINI_OBJECT_TYPE (GstNvEncTask, gst_nv_enc_task);
bool
GstNvEncObject::IsSuccess (NVENCSTATUS status, GstNvEncObject * self,
const gchar * file, const gchar * function, gint line)
{
if (status == NV_ENC_SUCCESS)
return true;
#ifndef GST_DISABLE_GST_DEBUG
const gchar *status_str = nvenc_status_to_string (status);
if (self) {
gst_debug_log_id (GST_CAT_DEFAULT, GST_LEVEL_ERROR, file, function,
line, self->id_.c_str (), "NvEnc API call failed: 0x%x, %s",
(guint) status, status_str);
} else {
gst_debug_log (GST_CAT_DEFAULT, GST_LEVEL_ERROR, file, function,
line, nullptr, "NvEnc API call failed: 0x%x, %s",
(guint) status, status_str);
}
#endif
return false;
}
#define NVENC_IS_SUCCESS(status,obj) \
GstNvEncObject::IsSuccess (status, obj, __FILE__, GST_FUNCTION, __LINE__)
std::shared_ptr<GstNvEncObject>
GstNvEncObject::CreateInstance (GstElement * client, GstObject * device,
NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS * params)
{
NVENCSTATUS status;
gpointer session;
status = NvEncOpenEncodeSessionEx (params, &session);
if (!NVENC_IS_SUCCESS (status, nullptr)) {
GST_ERROR_OBJECT (device, "NvEncOpenEncodeSessionEx failed");
return nullptr;
}
std::shared_ptr<GstNvEncObject> self =
std::make_shared <GstNvEncObject> ();
self->id_ = GST_ELEMENT_NAME (client);
self->session_ = session;
#ifdef G_OS_WIN32
if (params->deviceType == NV_ENC_DEVICE_TYPE_DIRECTX) {
self->device_ = (GstD3D11Device *) gst_object_ref (device);
self->user_token_ = gst_d3d11_create_user_token ();
} else
#endif
{
self->context_ = (GstCudaContext *) gst_object_ref (device);
self->user_token_ = gst_cuda_create_user_token ();
}
self->device_type_ = params->deviceType;
self->buffer_seq_ = 0;
self->resource_seq_ = 0;
self->task_seq_ = 0;
GST_INFO_ID (self->id_.c_str (), "New encoder object for type %d is created",
self->device_type_);
return self;
}
GstNvEncObject::~GstNvEncObject ()
{
GST_INFO_ID (id_.c_str (), "Destroying instance");
DeviceLock ();
while (!buffer_queue_.empty ()) {
GstNvEncBuffer *buf = buffer_queue_.front ();
NvEncDestroyInputBuffer (session_, buf->buffer.inputBuffer);
gst_nv_enc_buffer_unref (buf);
buffer_queue_.pop ();
}
if (!resource_queue_.empty ()) {
GST_INFO_ID (id_.c_str (), "Have %u outstanding input resource(s)",
(guint) resource_queue_.size ());
for (auto it : resource_queue_)
releaseResourceUnlocked (it);
}
while (!empty_task_queue_.empty ()) {
GstNvEncTask *task = empty_task_queue_.front ();
releaseTaskUnlocked (task);
empty_task_queue_.pop ();
}
NvEncDestroyEncoder (session_);
DeviceUnlock ();
gst_clear_object (&context_);
gst_clear_cuda_stream (&stream_);
#ifdef G_OS_WIN32
gst_clear_object (&device_);
#endif
GST_INFO_ID (id_.c_str (), "Cleared all resources");
}
gpointer
GstNvEncObject::GetHandle ()
{
return session_;
}
guint
GstNvEncObject::GetTaskSize ()
{
return task_size_;
}
void
GstNvEncObject::releaseTaskUnlocked (GstNvEncTask * task)
{
if (!task)
return;
if (task->output_ptr) {
NvEncDestroyBitstreamBuffer (session_, task->output_ptr);
task->output_ptr = nullptr;
}
#ifdef G_OS_WIN32
if (task->event_params.completionEvent) {
gpointer handle = task->event_params.completionEvent;
NvEncUnregisterAsyncEvent (session_, &task->event_params);
CloseHandle (handle);
memset (&task->event_params, 0, sizeof (NV_ENC_EVENT_PARAMS));
}
#endif
gst_nv_enc_task_unref (task);
}
NVENCSTATUS
GstNvEncObject::InitSession (NV_ENC_INITIALIZE_PARAMS * params,
GstCudaStream * stream, const GstVideoInfo * info, guint task_size)
{
NVENCSTATUS status = NV_ENC_SUCCESS;
if (initialized_) {
GST_ERROR_ID (id_.c_str(), "Was initialized");
return NV_ENC_ERR_INVALID_CALL;
}
if (memcmp (&params->encodeGUID, &NV_ENC_CODEC_H264_GUID, sizeof (GUID)) == 0) {
codec_ = GST_NV_ENC_CODEC_H264;
} else {
codec_ = GST_NV_ENC_CODEC_H265;
}
info_ = *info;
switch (GST_VIDEO_INFO_FORMAT (info)) {
case GST_VIDEO_FORMAT_NV12:
buffer_format_ = NV_ENC_BUFFER_FORMAT_NV12;
break;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_GBR:
buffer_format_ = NV_ENC_BUFFER_FORMAT_YUV444;
break;
case GST_VIDEO_FORMAT_P010_10LE:
buffer_format_ = NV_ENC_BUFFER_FORMAT_YUV420_10BIT;
break;
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_GBR_16LE:
buffer_format_ = NV_ENC_BUFFER_FORMAT_YUV444_10BIT;
break;
default:
GST_ERROR_ID (id_.c_str (), "Unexpected format %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
return NV_ENC_ERR_INVALID_PARAM;
}
GST_DEBUG_ID (id_.c_str (), "Initializing encoder, buffer type %d",
buffer_format_);
status = NvEncInitializeEncoder (session_, params);
if (!NVENC_IS_SUCCESS (status, this))
return status;
if (device_type_ == NV_ENC_DEVICE_TYPE_CUDA && stream) {
CUstream stream_handle;
stream_ = gst_cuda_stream_ref (stream);
stream_handle = gst_cuda_stream_get_handle (stream);
status = NvEncSetIOCudaStreams (session_,
(NV_ENC_CUSTREAM_PTR) & stream_handle,
(NV_ENC_CUSTREAM_PTR) & stream_handle);
if (!NVENC_IS_SUCCESS (status, this))
return status;
}
for (guint i = 0; i < task_size; i++) {
GstNvEncTask *task = gst_nv_enc_task_new (id_, task_seq_.fetch_add (1));
NV_ENC_CREATE_BITSTREAM_BUFFER buffer_params = { 0, };
task->device_type = device_type_;
buffer_params.version = gst_nvenc_get_create_bitstream_buffer_version ();
status = NvEncCreateBitstreamBuffer (session_, &buffer_params);
if (!NVENC_IS_SUCCESS (status, this)) {
gst_nv_enc_task_unref (task);
goto out;
}
task->output_ptr = buffer_params.bitstreamBuffer;
#ifdef G_OS_WIN32
if (params->enableEncodeAsync) {
task->event_params.version = gst_nvenc_get_event_params_version ();
task->event_params.completionEvent = CreateEvent (nullptr,
FALSE, FALSE, nullptr);
status = NvEncRegisterAsyncEvent (session_, &task->event_params);
if (!NVENC_IS_SUCCESS (status, this)) {
CloseHandle (task->event_params.completionEvent);
releaseTaskUnlocked (task);
goto out;
}
}
#endif
empty_task_queue_.push (task);
}
task_size_ = task_size;
lookahead_ = params->encodeConfig->rcParams.lookaheadDepth;
initialized_ = true;
out:
if (status != NV_ENC_SUCCESS) {
while (!empty_task_queue_.empty ()) {
GstNvEncTask *task = empty_task_queue_.front ();
releaseTaskUnlocked (task);
empty_task_queue_.pop ();
}
}
return status;
}
NVENCSTATUS
GstNvEncObject::Reconfigure (NV_ENC_RECONFIGURE_PARAMS * params)
{
return NvEncReconfigureEncoder (session_, params);
}
void
GstNvEncObject::SetFlushing (bool flushing)
{
std::lock_guard <std::mutex> lk (lock_);
flushing_ = flushing;
cond_.notify_all ();
}
NVENCSTATUS
GstNvEncObject::Encode (GstVideoCodecFrame * codec_frame,
NV_ENC_PIC_STRUCT pic_struct, GstNvEncTask * task)
{
NVENCSTATUS status;
guint retry_count = 0;
const guint retry_threshold = 100;
NV_ENC_PIC_PARAMS params = { 0, };
std::unique_lock <std::mutex> lk (lock_);
params.version = gst_nvenc_get_pic_params_version ();
params.completionEvent = task->event_params.completionEvent;
g_assert (task->buffer || task->resource);
GST_LOG_ID (id_.c_str (), "Encoding frame %u",
codec_frame->system_frame_number);
if (task->buffer) {
params.inputWidth = task->buffer->buffer.width;
params.inputHeight = task->buffer->buffer.height;
params.inputPitch = task->buffer->buffer_lock.pitch;
params.inputBuffer = task->buffer->buffer.inputBuffer;
params.bufferFmt = task->buffer->buffer.bufferFmt;
} else {
params.inputWidth = task->resource->resource.width;
params.inputHeight = task->resource->resource.height;
params.inputPitch = task->resource->resource.pitch;
params.inputBuffer = task->resource->mapped_resource.mappedResource;
params.bufferFmt = task->resource->mapped_resource.mappedBufferFmt;
}
params.frameIdx = codec_frame->system_frame_number;
params.inputTimeStamp = codec_frame->pts;
params.inputDuration = codec_frame->duration;
params.outputBitstream = task->output_ptr;
params.pictureStruct = pic_struct;
if (task->sei_payload->len > 0) {
if (codec_ == GST_NV_ENC_CODEC_H264) {
params.codecPicParams.h264PicParams.seiPayloadArray =
&g_array_index (task->sei_payload, NV_ENC_SEI_PAYLOAD, 0);
params.codecPicParams.h264PicParams.seiPayloadArrayCnt =
task->sei_payload->len;
} else {
params.codecPicParams.hevcPicParams.seiPayloadArray =
&g_array_index (task->sei_payload, NV_ENC_SEI_PAYLOAD, 0);
params.codecPicParams.hevcPicParams.seiPayloadArrayCnt =
task->sei_payload->len;
}
}
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (codec_frame))
params.encodePicFlags = NV_ENC_PIC_FLAG_FORCEIDR;
do {
DeviceLock ();
status = NvEncEncodePicture (session_, &params);
DeviceUnlock ();
if (status == NV_ENC_ERR_ENCODER_BUSY) {
if (retry_count < 100) {
GST_DEBUG_ID (id_.c_str (), "GPU is busy, retry count (%d/%d)",
retry_count, retry_threshold);
retry_count++;
/* Magic number 1ms */
g_usleep (1000);
continue;
} else {
GST_ERROR_ID (id_.c_str (), "GPU is keep busy, give up");
break;
}
}
break;
} while (true);
if (status != NV_ENC_SUCCESS && status != NV_ENC_ERR_NEED_MORE_INPUT) {
NVENC_IS_SUCCESS (status, this);
lk.unlock ();
gst_nv_enc_task_unref (task);
return status;
}
gst_video_codec_frame_set_user_data (codec_frame, task, nullptr);
{
std::lock_guard <std::recursive_mutex> rlk (resource_lock_);
if (task->resource)
active_resource_queue_.insert (task->resource);
}
/* On Windows and if async encoding is enabled, output thread will wait
* for completion event. But on Linux, async encoding is not supported.
* So, we should wait for NV_ENC_SUCCESS in case of sync mode
* (it would introduce latency though).
* Otherwise nvEncLockBitstream() will return error */
if (params.completionEvent) {
/* Windows only path */
task_queue_.push (task);
cond_.notify_all ();
} else {
pending_task_queue_.push (task);
if (status == NV_ENC_SUCCESS) {
bool notify = false;
/* XXX: nvEncLockBitstream() will return NV_ENC_ERR_INVALID_PARAM
* if lookahead is enabled. See also
* https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/494
*/
while (pending_task_queue_.size() > lookahead_) {
notify = true;
task_queue_.push (pending_task_queue_.front ());
pending_task_queue_.pop ();
}
if (notify)
cond_.notify_all ();
}
}
return NV_ENC_SUCCESS;
}
NVENCSTATUS
GstNvEncObject::Drain (GstNvEncTask * task)
{
NVENCSTATUS status;
guint retry_count = 0;
const guint retry_threshold = 100;
NV_ENC_PIC_PARAMS params = { 0, };
std::unique_lock <std::mutex> lk (lock_);
params.version = gst_nvenc_get_pic_params_version ();
params.completionEvent = task->event_params.completionEvent;
params.encodePicFlags = NV_ENC_PIC_FLAG_EOS;
do {
status = NvEncEncodePicture (session_, &params);
if (status == NV_ENC_ERR_ENCODER_BUSY) {
if (retry_count < 100) {
GST_DEBUG_ID (id_.c_str (), "GPU is busy, retry count (%d/%d)",
retry_count, retry_threshold);
retry_count++;
/* Magic number 1ms */
g_usleep (1000);
continue;
} else {
GST_ERROR_ID (id_.c_str (), "GPU is keep busy, give up");
break;
}
}
break;
} while (true);
while (!pending_task_queue_.empty ()) {
task_queue_.push (pending_task_queue_.front ());
pending_task_queue_.pop ();
}
task_queue_.push (task);
cond_.notify_all ();
return status;
}
GstFlowReturn
GstNvEncObject::GetOutput (GstNvEncTask ** task)
{
GstNvEncTask *ret = nullptr;
std::unique_lock <std::mutex> lk (lock_);
while (task_queue_.empty ())
cond_.wait (lk);
ret = task_queue_.front ();
task_queue_.pop ();
lk.unlock ();
if (!ret->buffer && !ret->resource) {
gst_nv_enc_task_unref (ret);
return GST_FLOW_EOS;
}
#ifdef G_OS_WIN32
if (ret->event_params.completionEvent &&
WaitForSingleObject (ret->event_params.completionEvent, 20000) ==
WAIT_FAILED) {
GST_ERROR_ID (id_.c_str (), "Failed to wait for completion event");
gst_nv_enc_task_unref (ret);
return GST_FLOW_ERROR;
}
#endif
*task = ret;
return GST_FLOW_OK;
}
NVENCSTATUS
GstNvEncObject::LockBitstream (NV_ENC_LOCK_BITSTREAM * bitstream)
{
return NvEncLockBitstream (session_, bitstream);
}
NVENCSTATUS
GstNvEncObject::UnlockBitstream (NV_ENC_OUTPUT_PTR output_ptr)
{
return NvEncUnlockBitstream (session_, output_ptr);
}
NVENCSTATUS
GstNvEncObject::AcquireBuffer (GstNvEncBuffer ** buffer)
{
GstNvEncBuffer *new_buf = nullptr;
std::unique_lock <std::mutex> lk (lock_);
if (buffer_queue_.empty ()) {
NVENCSTATUS status;
NV_ENC_CREATE_INPUT_BUFFER in_buf = { 0, };
GST_LOG_ID (id_.c_str (), "No available input buffer, creating new one");
in_buf.version = gst_nvenc_get_create_input_buffer_version ();
in_buf.width = info_.width;
in_buf.height = info_.height;
in_buf.bufferFmt = buffer_format_;
status = NvEncCreateInputBuffer (session_, &in_buf);
if (!NVENC_IS_SUCCESS (status, this))
return status;
new_buf = gst_nv_enc_buffer_new (id_, buffer_seq_.fetch_add (1));
new_buf->buffer = in_buf;
new_buf->buffer_lock.inputBuffer = in_buf.inputBuffer;
} else {
new_buf = buffer_queue_.front ();
buffer_queue_.pop ();
}
g_assert (!new_buf->object);
new_buf->object = shared_from_this ();
*buffer = new_buf;
GST_TRACE_ID (id_.c_str (), "Acquired buffer %u", new_buf->seq_num);
return NV_ENC_SUCCESS;
}
void
GstNvEncObject::runResourceGC ()
{
std::lock_guard <std::recursive_mutex> lk (resource_lock_);
/* hard coded max size 64 */
if (resource_queue_.size () < 64)
return;
GST_LOG_ID (id_.c_str (), "Running resource GC");
DeviceLock ();
for (auto it : resource_queue_) {
if (active_resource_queue_.find (it) == active_resource_queue_.end ()) {
releaseResourceUnlocked (it);
resource_queue_.erase (it);
}
}
DeviceUnlock ();
GST_LOG_ID (id_.c_str (), "resource queue size after GC %u",
(guint) resource_queue_.size ());
}
bool
GstNvEncObject::DeviceLock ()
{
if (context_)
return gst_cuda_context_push (context_);
return true;
}
bool
GstNvEncObject::DeviceUnlock ()
{
if (context_)
return gst_cuda_context_pop (nullptr);
return true;
}
NVENCSTATUS
GstNvEncObject::acquireResourceCuda (GstMemory * mem,
GstNvEncResource ** resource)
{
GstNvEncResource *res;
GstCudaMemory *cmem;
NV_ENC_REGISTER_RESOURCE new_resource;
NV_ENC_MAP_INPUT_RESOURCE mapped_resource;
NVENCSTATUS status;
GstMapInfo info;
if (!gst_is_cuda_memory (mem)) {
GST_ERROR_ID (id_.c_str (), "Not a CUDA memory");
return NV_ENC_ERR_INVALID_CALL;
}
cmem = GST_CUDA_MEMORY_CAST (mem);
res = (GstNvEncResource *) gst_cuda_memory_get_token_data (cmem,
user_token_);
if (res) {
auto iter = resource_queue_.find (res);
/* This resource can be released already */
if (iter != resource_queue_.end ()) {
GST_LOG_ID (id_.c_str (), "Memory is holding registered resource");
*resource = gst_nv_enc_resource_ref (res);
return NV_ENC_SUCCESS;
}
}
if (!gst_memory_map (mem, &info, GST_MAP_READ_NVENC)) {
GST_ERROR_ID (id_.c_str (), "Couldn't map CUDA memory");
return NV_ENC_ERR_MAP_FAILED;
}
memset (&new_resource, 0, sizeof (NV_ENC_REGISTER_RESOURCE));
memset (&mapped_resource, 0, sizeof (NV_ENC_MAP_INPUT_RESOURCE));
new_resource.version = gst_nvenc_get_register_resource_version ();
new_resource.resourceType = NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR;
new_resource.width = cmem->info.width;
new_resource.height = cmem->info.height;
new_resource.pitch = cmem->info.stride[0];
new_resource.resourceToRegister = info.data;
new_resource.bufferFormat = buffer_format_;
GST_LOG_ID (id_.c_str (), "Registering CUDA resource %p, %dx%d, pitch %u",
info.data, new_resource.width, new_resource.height, new_resource.pitch);
status = NvEncRegisterResource (session_, &new_resource);
gst_memory_unmap (mem, &info);
if (!NVENC_IS_SUCCESS (status, this))
return status;
mapped_resource.version = gst_nvenc_get_map_input_resource_version ();
mapped_resource.registeredResource = new_resource.registeredResource;
status = NvEncMapInputResource (session_, &mapped_resource);
if (!NVENC_IS_SUCCESS (status, this)) {
NvEncUnregisterResource (session_, new_resource.registeredResource);
return status;
}
res = gst_nv_enc_resource_new (id_, resource_seq_.fetch_add (1));
/* weak ref */
res->object = shared_from_this ();
res->resource = new_resource;
res->mapped_resource = mapped_resource;
gst_cuda_memory_set_token_data (cmem, user_token_,
gst_nv_enc_resource_ref (res),
(GDestroyNotify) gst_nv_enc_resource_unref);
resource_queue_.insert (res);
*resource = res;
return NV_ENC_SUCCESS;
}
#ifdef G_OS_WIN32
NVENCSTATUS
GstNvEncObject::acquireResourceD3D11 (GstMemory * mem,
GstNvEncResource ** resource)
{
GstNvEncResource *res;
GstD3D11Memory *dmem;
NV_ENC_REGISTER_RESOURCE new_resource;
NV_ENC_MAP_INPUT_RESOURCE mapped_resource;
NVENCSTATUS status;
D3D11_TEXTURE2D_DESC desc;
GstMapInfo info;
if (!gst_is_d3d11_memory (mem)) {
GST_ERROR_ID (id_.c_str (), "Not a D3D11 memory");
return NV_ENC_ERR_INVALID_CALL;
}
dmem = GST_D3D11_MEMORY_CAST (mem);
res = (GstNvEncResource *) gst_d3d11_memory_get_token_data (dmem,
user_token_);
if (res) {
auto iter = resource_queue_.find (res);
/* This resource can be released already */
if (iter != resource_queue_.end ()) {
GST_LOG_ID (id_.c_str (), "Memory is holding registered resource");
*resource = gst_nv_enc_resource_ref (res);
return NV_ENC_SUCCESS;
}
}
if (!gst_memory_map (mem, &info, GST_MAP_READ_NVENC)) {
GST_ERROR_ID (id_.c_str (), "Couldn't map D3D11 memory");
return NV_ENC_ERR_MAP_FAILED;
}
gst_d3d11_memory_get_texture_desc (dmem, &desc);
memset (&new_resource, 0, sizeof (NV_ENC_REGISTER_RESOURCE));
memset (&mapped_resource, 0, sizeof (NV_ENC_MAP_INPUT_RESOURCE));
new_resource.version = gst_nvenc_get_register_resource_version ();
new_resource.resourceType = NV_ENC_INPUT_RESOURCE_TYPE_DIRECTX;
new_resource.width = desc.Width;
new_resource.height = desc.Height;
new_resource.pitch = 0;
new_resource.resourceToRegister = info.data;
new_resource.subResourceIndex = gst_d3d11_memory_get_subresource_index (dmem);
new_resource.bufferFormat = buffer_format_;
status = NvEncRegisterResource (session_, &new_resource);
gst_memory_unmap (mem, &info);
if (!NVENC_IS_SUCCESS (status, this))
return status;
mapped_resource.version = gst_nvenc_get_map_input_resource_version ();
mapped_resource.registeredResource = new_resource.registeredResource;
status = NvEncMapInputResource (session_, &mapped_resource);
if (!NVENC_IS_SUCCESS (status, this)) {
NvEncUnregisterResource (session_, new_resource.registeredResource);
return status;
}
res = gst_nv_enc_resource_new (id_, resource_seq_.fetch_add (1));
/* weak ref */
res->object = shared_from_this ();
res->resource = new_resource;
res->mapped_resource = mapped_resource;
gst_d3d11_memory_set_token_data (dmem, user_token_,
gst_nv_enc_resource_ref (res),
(GDestroyNotify) gst_nv_enc_resource_unref);
resource_queue_.insert (res);
*resource = res;
return NV_ENC_SUCCESS;
}
#endif
NVENCSTATUS
GstNvEncObject::AcquireResource (GstMemory * mem, GstNvEncResource ** resource)
{
NVENCSTATUS status;
std::lock_guard <std::recursive_mutex> lk (resource_lock_);
#ifdef G_OS_WIN32
if (device_type_ == NV_ENC_DEVICE_TYPE_DIRECTX) {
status = acquireResourceD3D11 (mem, resource);
} else
#endif
{
status = acquireResourceCuda (mem, resource);
}
if (status == NV_ENC_SUCCESS) {
GST_TRACE_ID (id_.c_str (), "Returning resource %u, "
"resource queue size %u (active %u)",
(*resource)->seq_num, (guint) resource_queue_.size (),
(guint) active_resource_queue_.size ());
}
return status;
}
GstFlowReturn
GstNvEncObject::AcquireTask (GstNvEncTask ** task, bool force)
{
GstNvEncTask *new_task = nullptr;
std::unique_lock <std::mutex> lk (lock_);
do {
if (!force && flushing_) {
GST_DEBUG_ID (id_.c_str (), "We are flushing");
return GST_FLOW_FLUSHING;
}
if (!empty_task_queue_.empty ()) {
new_task = empty_task_queue_.front ();
empty_task_queue_.pop ();
break;
}
GST_LOG_ID (id_.c_str (), "No available task, waiting for release");
cond_.wait (lk);
} while (true);
g_assert (!new_task->object);
new_task->object = shared_from_this ();
g_array_set_size (new_task->sei_payload, 0);
*task = new_task;
GST_TRACE_ID (id_.c_str (), "Acquired task %u", new_task->seq_num);
runResourceGC ();
return GST_FLOW_OK;
}
void
GstNvEncObject::PushEmptyTask (GstNvEncTask * task)
{
std::lock_guard <std::mutex> lk (lock_);
empty_task_queue_.push (task);
cond_.notify_all ();
}
void
GstNvEncObject::PushEmptyBuffer (GstNvEncBuffer * buffer)
{
std::lock_guard <std::mutex> lk (lock_);
buffer_queue_.push (buffer);
cond_.notify_all ();
}
void
GstNvEncObject::releaseResourceUnlocked (GstNvEncResource * resource)
{
NvEncUnmapInputResource (session_, resource->mapped_resource.mappedResource);
NvEncUnregisterResource (session_, resource->resource.registeredResource);
resource->mapped_resource.mappedResource = nullptr;
resource->resource.registeredResource = nullptr;
}
void
GstNvEncObject::ReleaseResource (GstNvEncResource * resource)
{
std::lock_guard <std::recursive_mutex> lk (resource_lock_);
active_resource_queue_.erase (resource);
auto it = resource_queue_.find (resource);
if (it != resource_queue_.end ()) {
DeviceLock ();
releaseResourceUnlocked (resource);
DeviceUnlock ();
resource_queue_.erase (it);
}
}
void
GstNvEncObject::DeactivateResource (GstNvEncResource * resource)
{
std::lock_guard <std::recursive_mutex> lk (resource_lock_);
GST_TRACE_ID (resource->id.c_str (), "Deactivating resource %u",
resource->seq_num);
active_resource_queue_.erase (resource);
}
/* *INDENT-ON* */
NVENCSTATUS
gst_nv_enc_buffer_lock (GstNvEncBuffer * buffer,
gpointer * data, guint32 * pitch)
{
std::shared_ptr < GstNvEncObject > object = buffer->object;
NVENCSTATUS status;
g_assert (object);
GST_TRACE_ID (buffer->id.c_str (), "Locking buffer %u", buffer->seq_num);
if (!buffer->locked) {
buffer->buffer_lock.inputBuffer = buffer->buffer.inputBuffer;
status = NvEncLockInputBuffer (object->GetHandle (), &buffer->buffer_lock);
if (!NVENC_IS_SUCCESS (status, object.get ()))
return status;
buffer->locked = true;
}
*data = buffer->buffer_lock.bufferDataPtr;
*pitch = buffer->buffer_lock.pitch;
return NV_ENC_SUCCESS;
}
void
gst_nv_enc_buffer_unlock (GstNvEncBuffer * buffer)
{
std::shared_ptr < GstNvEncObject > object = buffer->object;
if (!buffer->locked) {
GST_DEBUG_ID (buffer->id.c_str (),
"Buffer %u was not locked", buffer->seq_num);
return;
}
g_assert (object);
NvEncUnlockInputBuffer (object->GetHandle (), buffer->buffer.inputBuffer);
buffer->locked = false;
}
static gboolean
gst_nv_enc_buffer_dispose (GstNvEncBuffer * buffer)
{
std::shared_ptr < GstNvEncObject > object = buffer->object;
GST_TRACE_ID (buffer->id.c_str (), "Disposing buffer %u", buffer->seq_num);
if (!object)
return TRUE;
gst_nv_enc_buffer_unlock (buffer);
buffer->object = nullptr;
GST_TRACE_ID (buffer->id.c_str (),
"Back to buffer queue %u", buffer->seq_num);
/* Back to task queue */
gst_nv_enc_buffer_ref (buffer);
object->PushEmptyBuffer (buffer);
return FALSE;
}
static void
gst_nv_enc_buffer_free (GstNvEncBuffer * buffer)
{
GST_TRACE_ID (buffer->id.c_str (), "Freeing buffer %u", buffer->seq_num);
delete buffer;
}
static GstNvEncBuffer *
gst_nv_enc_buffer_new (const std::string & id, guint seq_num)
{
GstNvEncBuffer *buffer = new GstNvEncBuffer (id, seq_num);
gst_mini_object_init (buffer, 0, GST_TYPE_NV_ENC_BUFFER, nullptr,
(GstMiniObjectDisposeFunction) gst_nv_enc_buffer_dispose,
(GstMiniObjectFreeFunction) gst_nv_enc_buffer_free);
return buffer;
}
static gboolean
gst_nv_enc_resource_dispose (GstNvEncResource * resource)
{
std::shared_ptr < GstNvEncObject > object;
GST_TRACE_ID (resource->id.c_str (),
"Disposing resource %u", resource->seq_num);
object = resource->object.lock ();
if (!object)
return TRUE;
object->ReleaseResource (resource);
return TRUE;
}
static void
gst_nv_enc_resource_free (GstNvEncResource * resource)
{
GST_TRACE_ID (resource->id.c_str (),
"Freeing resource %u", resource->seq_num);
delete resource;
}
static GstNvEncResource *
gst_nv_enc_resource_new (const std::string & id, guint seq_num)
{
GstNvEncResource *resource = new GstNvEncResource (id, seq_num);
gst_mini_object_init (resource, 0, GST_TYPE_NV_ENC_RESOURCE, nullptr,
(GstMiniObjectDisposeFunction) gst_nv_enc_resource_dispose,
(GstMiniObjectFreeFunction) gst_nv_enc_resource_free);
return resource;
}
gboolean
gst_nv_enc_task_set_buffer (GstNvEncTask * task, GstNvEncBuffer * buffer)
{
g_assert (!task->buffer);
g_assert (!task->resource);
task->buffer = buffer;
return TRUE;
}
gboolean
gst_nv_enc_task_set_resource (GstNvEncTask * task,
GstBuffer * buffer, GstNvEncResource * resource)
{
if (!gst_buffer_map (buffer, &task->info, GST_MAP_READ_NVENC)) {
GST_ERROR_ID (task->id.c_str (), "Couldn't map resource buffer");
gst_buffer_unref (buffer);
gst_nv_enc_resource_unref (resource);
return FALSE;
}
task->gst_buffer = buffer;
task->resource = resource;
return TRUE;
}
GArray *
gst_nv_enc_task_get_sei_payload (GstNvEncTask * task)
{
return task->sei_payload;
}
NVENCSTATUS
gst_nv_enc_task_lock_bitstream (GstNvEncTask * task,
NV_ENC_LOCK_BITSTREAM * bitstream)
{
NVENCSTATUS status;
if (task->locked) {
GST_ERROR_ID (task->id.c_str (), "Bitstream was locked already");
return NV_ENC_ERR_INVALID_CALL;
}
task->bitstream.outputBitstream = task->output_ptr;
status = task->object->LockBitstream (&task->bitstream);
if (!NVENC_IS_SUCCESS (status, task->object.get ()))
return status;
task->locked = true;
*bitstream = task->bitstream;
return NV_ENC_SUCCESS;
}
void
gst_nv_enc_task_unlock_bitstream (GstNvEncTask * task)
{
NVENCSTATUS status;
if (!task->locked)
return;
status = task->object->UnlockBitstream (task->output_ptr);
NVENC_IS_SUCCESS (status, task->object.get ());
task->locked = false;
}
static gboolean
gst_nv_enc_task_dispose (GstNvEncTask * task)
{
std::shared_ptr < GstNvEncObject > object;
GST_TRACE_ID (task->id.c_str (), "Disposing task %u", task->seq_num);
object = task->object;
g_array_set_size (task->sei_payload, 0);
if (task->resource) {
object->DeactivateResource (task->resource);
gst_clear_nv_encoder_resource (&task->resource);
}
gst_clear_nv_encoder_buffer (&task->buffer);
if (task->gst_buffer) {
if (task->device_type == NV_ENC_DEVICE_TYPE_CUDA) {
GstMemory *mem = gst_buffer_peek_memory (task->gst_buffer, 0);
if (gst_is_cuda_memory (mem))
GST_MEMORY_FLAG_UNSET (mem, GST_CUDA_MEMORY_TRANSFER_NEED_SYNC);
}
gst_buffer_unmap (task->gst_buffer, &task->info);
gst_clear_buffer (&task->gst_buffer);
}
if (!object)
return TRUE;
task->object = nullptr;
GST_TRACE_ID (task->id.c_str (), "Back to task queue %u", task->seq_num);
/* Back to task queue */
gst_nv_enc_task_ref (task);
object->PushEmptyTask (task);
return FALSE;
}
static void
gst_nv_enc_task_free (GstNvEncTask * task)
{
GST_TRACE_ID (task->id.c_str (), "Freeing task %u", task->seq_num);
delete task;
}
static GstNvEncTask *
gst_nv_enc_task_new (const std::string & id, guint seq_num)
{
GstNvEncTask *task = new GstNvEncTask (id, seq_num);
gst_mini_object_init (task, 0, GST_TYPE_NV_ENC_TASK, nullptr,
(GstMiniObjectDisposeFunction) gst_nv_enc_task_dispose,
(GstMiniObjectFreeFunction) gst_nv_enc_task_free);
return task;
}
const gchar *
nvenc_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";
}