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gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstcudamemorycopy.c
Seungha Yang d9f08e17f1 cudadownload: Passthrough in case of CUDA -> SYSTEM 
GstCudaMemory supports CPU access via CUDA pinned host memory already
and it would show faster memory transfer performance between
GPU and CPU than copying from/to normal system memory.
If downstream supports video meta, we can passthrough CUDA memory.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2690>
2022-06-30 10:45:45 +00:00

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/* GStreamer
* Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.com>
* 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.
*/
/**
* element-cudaupload:
*
* Uploads data to NVIDA GPU via CUDA APIs
*
* Since: 1.20
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstcudabasetransform.h"
#include "gstcudamemorycopy.h"
#include "gstcudaformat.h"
#include <gst/cuda/gstcudautils.h>
#ifdef HAVE_NVCODEC_NVMM
#include "gstcudanvmm.h"
#endif
#ifdef HAVE_NVCODEC_GST_GL
#include <gst/gl/gl.h>
#endif
#ifdef GST_CUDA_HAS_D3D
#include <gst/d3d11/gstd3d11.h>
#endif
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_cuda_memory_copy_debug);
#define GST_CAT_DEFAULT gst_cuda_memory_copy_debug
typedef struct _GstCudaMemoryCopyClassData
{
GstCaps *sink_caps;
GstCaps *src_caps;
} GstCudaMemoryCopyClassData;
struct _GstCudaMemoryCopy
{
GstCudaBaseTransform parent;
GstCudaBufferCopyType in_type;
GstCudaBufferCopyType out_type;
gboolean downstream_supports_video_meta;
#ifdef HAVE_NVCODEC_GST_GL
GstGLDisplay *gl_display;
GstGLContext *gl_context;
GstGLContext *other_gl_context;
#endif
#ifdef GST_CUDA_HAS_D3D
GstD3D11Device *d3d11_device;
#endif
};
typedef struct _GstCudaUpload
{
GstCudaMemoryCopy parent;
} GstCudaUpload;
typedef struct _GstCudaUploadClass
{
GstCudaMemoryCopyClass parent_class;
} GstCudaUploadClass;
typedef struct _GstCudaDownload
{
GstCudaMemoryCopy parent;
} GstCudaDownload;
typedef struct _GstCudaDownloadClass
{
GstCudaMemoryCopyClass parent_class;
} GstCudaDownloadClass;
#define gst_cuda_memory_copy_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstCudaMemoryCopy, gst_cuda_memory_copy,
GST_TYPE_CUDA_BASE_TRANSFORM);
static void gst_cuda_memory_copy_set_context (GstElement * element,
GstContext * context);
static gboolean gst_cuda_memory_copy_transform_stop (GstBaseTransform * trans);
static GstCaps *gst_cuda_memory_copy_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_cuda_memory_copy_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query);
static gboolean gst_cuda_memory_copy_propose_allocation (GstBaseTransform *
trans, GstQuery * decide_query, GstQuery * query);
static gboolean gst_cuda_memory_copy_decide_allocation (GstBaseTransform *
trans, GstQuery * query);
static gboolean gst_cuda_memory_copy_set_info (GstCudaBaseTransform * btrans,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
static GstFlowReturn gst_cuda_memory_copy_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static void
gst_cuda_memory_copy_class_init (GstCudaMemoryCopyClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstCudaBaseTransformClass *btrans_class =
GST_CUDA_BASE_TRANSFORM_CLASS (klass);
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_set_context);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_transform_stop);
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_transform_caps);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_decide_allocation);
trans_class->query = GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_query);
btrans_class->set_info = GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_set_info);
}
static void
gst_cuda_memory_copy_init (GstCudaMemoryCopy * self)
{
}
static void
gst_cuda_memory_copy_set_context (GstElement * element, GstContext * context)
{
/* CUDA context is handled by parent class, handle only non-CUDA context */
#ifdef HAVE_NVCODEC_GST_GL
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (element);
gst_gl_handle_set_context (element, context, &self->gl_display,
&self->other_gl_context);
#endif
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_cuda_memory_copy_transform_stop (GstBaseTransform * trans)
{
#if defined(HAVE_NVCODEC_GST_GL) || defined(GST_CUDA_HAS_D3D)
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (trans);
# ifdef HAVE_NVCODEC_GST_GL
gst_clear_object (&self->gl_display);
gst_clear_object (&self->gl_context);
gst_clear_object (&self->other_gl_context);
# endif
# ifdef GST_CUDA_HAS_D3D
gst_clear_object (&self->d3d11_device);
# endif
#endif
return GST_BASE_TRANSFORM_CLASS (parent_class)->stop (trans);
}
static GstCaps *
_set_caps_features (const GstCaps * caps, const gchar * feature_name)
{
GstCaps *tmp = gst_caps_copy (caps);
guint n = gst_caps_get_size (tmp);
guint i = 0;
for (i = 0; i < n; i++)
gst_caps_set_features (tmp, i,
gst_caps_features_from_string (feature_name));
return tmp;
}
static void
_remove_field (GstCaps * caps, const gchar * field)
{
guint n = gst_caps_get_size (caps);
guint i = 0;
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (caps, i);
gst_structure_remove_field (s, field);
}
}
static GstCaps *
create_transform_caps (GstCaps * caps, gboolean to_cuda)
{
GstCaps *ret = NULL;
if (to_cuda) {
GstCaps *sys_caps = gst_caps_simplify (_set_caps_features (caps,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY));
GstCaps *new_caps;
ret = gst_caps_copy (sys_caps);
#ifdef HAVE_NVCODEC_NVMM
if (gst_cuda_nvmm_init_once ()) {
new_caps = _set_caps_features (sys_caps,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY);
ret = gst_caps_merge (ret, new_caps);
}
#endif
new_caps = _set_caps_features (sys_caps,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY);
ret = gst_caps_merge (ret, new_caps);
ret = gst_caps_make_writable (ret);
_remove_field (ret, "texture-target");
gst_caps_unref (sys_caps);
} else {
GstCaps *new_caps;
ret = gst_caps_ref (caps);
#ifdef HAVE_NVCODEC_NVMM
if (gst_cuda_nvmm_init_once ()) {
new_caps = _set_caps_features (caps,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY);
ret = gst_caps_merge (ret, new_caps);
}
#endif
#ifdef HAVE_NVCODEC_GST_GL
new_caps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
ret = gst_caps_merge (ret, new_caps);
#endif
#ifdef GST_CUDA_HAS_D3D
new_caps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
ret = gst_caps_merge (ret, new_caps);
#endif
new_caps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
ret = gst_caps_merge (ret, new_caps);
ret = gst_caps_make_writable (ret);
_remove_field (ret, "texture-target");
}
return ret;
}
static GstCaps *
gst_cuda_memory_copy_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCudaMemoryCopyClass *klass = GST_CUDA_MEMORY_COPY_GET_CLASS (trans);
GstCaps *result, *tmp;
GST_DEBUG_OBJECT (trans,
"Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
(direction == GST_PAD_SINK) ? "sink" : "src");
if (direction == GST_PAD_SINK) {
tmp = create_transform_caps (caps, klass->uploader);
} else {
tmp = create_transform_caps (caps, !klass->uploader);
}
if (filter) {
result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
} else {
result = tmp;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, result);
return result;
}
#ifdef HAVE_NVCODEC_GST_GL
static void
gst_cuda_memory_copy_ensure_gl_interop (GstGLContext * context, gboolean * ret)
{
guint device_count = 0;
CUdevice device_list[1] = { 0, };
CUresult cuda_ret;
*ret = FALSE;
cuda_ret = CuGLGetDevices (&device_count,
device_list, 1, CU_GL_DEVICE_LIST_ALL);
if (cuda_ret != CUDA_SUCCESS || device_count == 0)
return;
*ret = TRUE;
return;
}
static gboolean
gst_cuda_memory_copy_ensure_gl_context (GstCudaMemoryCopy * self)
{
GstGLDisplay *display;
GstGLContext *context;
gboolean ret = FALSE;
if (!gst_gl_ensure_element_data (GST_ELEMENT (self),
&self->gl_display, &self->other_gl_context)) {
GST_DEBUG_OBJECT (self, "No available OpenGL display");
return FALSE;
}
display = self->gl_display;
if (!gst_gl_query_local_gl_context (GST_ELEMENT (self), GST_PAD_SRC,
&self->gl_context) &&
!gst_gl_query_local_gl_context (GST_ELEMENT (self), GST_PAD_SINK,
&self->gl_context)) {
GST_INFO_OBJECT (self, "failed to query local OpenGL context");
gst_clear_object (&self->gl_context);
self->gl_context = gst_gl_display_get_gl_context_for_thread (display, NULL);
if (!self->gl_context
|| !gst_gl_display_add_context (display,
GST_GL_CONTEXT (self->gl_context))) {
gst_clear_object (&self->gl_context);
if (!gst_gl_display_create_context (display,
self->other_gl_context, &self->gl_context, NULL)) {
GST_WARNING_OBJECT (self, "failed to create OpenGL context");
return FALSE;
}
if (!gst_gl_display_add_context (display, self->gl_context)) {
GST_WARNING_OBJECT (self,
"failed to add the OpenGL context to the display");
return FALSE;
}
}
}
context = self->gl_context;
if (!gst_gl_context_check_gl_version (context,
(GstGLAPI) (GST_GL_API_OPENGL | GST_GL_API_OPENGL3), 3, 0)) {
GST_WARNING_OBJECT (self, "OpenGL context could not support PBO download");
return FALSE;
}
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) gst_cuda_memory_copy_ensure_gl_interop, &ret);
if (!ret) {
GST_WARNING_OBJECT (self, "Current GL context is not CUDA compatible");
return FALSE;
}
return TRUE;
}
#endif
#ifdef GST_CUDA_HAS_D3D
static gboolean
gst_cuda_memory_copy_ensure_d3d11_interop (GstCudaContext * context,
GstD3D11Device * device)
{
guint device_count = 0;
CUdevice cuda_device_id;
CUdevice device_list[1] = { 0, };
CUresult cuda_ret;
g_object_get (context, "cuda-device-id", &cuda_device_id, NULL);
cuda_ret = CuD3D11GetDevices (&device_count,
device_list, 1, gst_d3d11_device_get_device_handle (device),
CU_D3D11_DEVICE_LIST_ALL);
if (cuda_ret != CUDA_SUCCESS || device_count == 0)
return FALSE;
if (device_list[0] != cuda_device_id)
return FALSE;
return TRUE;
}
static gboolean
gst_cuda_memory_copy_ensure_d3d11_context (GstCudaMemoryCopy * self)
{
gint64 dxgi_adapter_luid = 0;
g_object_get (GST_CUDA_BASE_TRANSFORM (self)->context, "dxgi-adapter-luid",
&dxgi_adapter_luid, NULL);
if (!gst_d3d11_ensure_element_data_for_adapter_luid (GST_ELEMENT (self),
dxgi_adapter_luid, &self->d3d11_device)) {
GST_DEBUG_OBJECT (self, "No available D3D11 device");
return FALSE;
}
if (!gst_cuda_memory_copy_ensure_d3d11_interop (GST_CUDA_BASE_TRANSFORM
(self)->context, self->d3d11_device)) {
GST_WARNING_OBJECT (self, "Current D3D11 device is not CUDA compatible");
return FALSE;
}
return TRUE;
}
#endif
static gboolean
gst_cuda_memory_copy_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (trans);
GstCudaBaseTransform *ctrans = GST_CUDA_BASE_TRANSFORM (trans);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint size;
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query))
return FALSE;
/* passthrough, we're done */
if (decide_query == NULL)
return TRUE;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
if (gst_query_get_n_allocation_pools (query) == 0) {
GstCapsFeatures *features;
GstStructure *config;
features = gst_caps_get_features (caps, 0);
if (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 (ctrans->context);
#ifdef HAVE_NVCODEC_GST_GL
} else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY) &&
gst_cuda_memory_copy_ensure_gl_context (self)) {
GST_DEBUG_OBJECT (self, "upstream support GL memory");
pool = gst_gl_buffer_pool_new (self->gl_context);
#endif
#ifdef GST_CUDA_HAS_D3D
} else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY) &&
gst_cuda_memory_copy_ensure_d3d11_context (self)) {
GST_DEBUG_OBJECT (self, "upstream support D3D11 memory");
pool = gst_d3d11_buffer_pool_new (self->d3d11_device);
#endif
#ifdef HAVE_NVCODEC_NVMM
} else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY) &&
gst_cuda_nvmm_init_once ()) {
guint gpu_id = 0;
GST_DEBUG_OBJECT (self, "upstream support NVMM memory");
g_object_get (ctrans->context, "cuda-device-id", &gpu_id, NULL);
pool = gst_cuda_nvmm_buffer_pool_new ();
if (!pool) {
GST_ERROR_OBJECT (self, "Failed to create pool");
return FALSE;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps,
sizeof (NvBufSurface), 0, 0);
gst_structure_set (config, "memtype", G_TYPE_UINT, NVBUF_MEM_DEFAULT,
"gpu-id", G_TYPE_UINT, gpu_id, "batch-size", G_TYPE_UINT, 1, NULL);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set config");
gst_object_unref (pool);
return FALSE;
}
gst_query_add_allocation_pool (query, pool, sizeof (NvBufSurface), 0, 0);
return TRUE;
#endif
}
if (!pool) {
GST_DEBUG_OBJECT (self, "creating system buffer 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);
size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (ctrans, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
/* Get updated size by cuda buffer pool */
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, 0, 0);
gst_object_unref (pool);
}
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
}
static gboolean
gst_cuda_memory_copy_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (trans);
GstCudaBaseTransform *ctrans = GST_CUDA_BASE_TRANSFORM (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min, max;
GstStructure *config;
gboolean update_pool = FALSE;
GstCapsFeatures *features;
gboolean need_cuda = FALSE;
#ifdef HAVE_NVCODEC_GST_GL
gboolean need_gl = FALSE;
#endif
#ifdef GST_CUDA_HAS_D3D
gboolean need_d3d11 = FALSE;
#endif
#ifdef HAVE_NVCODEC_NVMM
gboolean need_nvmm = FALSE;
#endif
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
self->downstream_supports_video_meta =
gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
GST_DEBUG_OBJECT (self, "Downstream supports video meta: %d",
self->downstream_supports_video_meta);
features = gst_caps_get_features (outcaps, 0);
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) {
need_cuda = TRUE;
}
#ifdef HAVE_NVCODEC_GST_GL
else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY) &&
gst_cuda_memory_copy_ensure_gl_context (self)) {
need_gl = TRUE;
}
#endif
#ifdef GST_CUDA_HAS_D3D
else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY) &&
gst_cuda_memory_copy_ensure_d3d11_context (self)) {
need_d3d11 = TRUE;
}
#endif
#ifdef HAVE_NVCODEC_NVMM
else if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY) &&
gst_cuda_nvmm_init_once ()) {
need_nvmm = TRUE;
}
#endif
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (need_cuda && pool) {
if (!GST_IS_CUDA_BUFFER_POOL (pool)) {
gst_clear_object (&pool);
} else {
GstCudaBufferPool *cpool = GST_CUDA_BUFFER_POOL (pool);
if (cpool->context != ctrans->context) {
gst_clear_object (&pool);
}
}
}
#ifdef HAVE_NVCODEC_NVMM
if (need_nvmm) {
/* XXX: Always create new pool to set config option */
gst_clear_object (&pool);
}
#endif
update_pool = TRUE;
} else {
GstVideoInfo vinfo;
gst_video_info_from_caps (&vinfo, outcaps);
size = GST_VIDEO_INFO_SIZE (&vinfo);
min = max = 0;
}
if (!pool) {
if (need_cuda) {
GST_DEBUG_OBJECT (self, "creating cuda pool");
pool = gst_cuda_buffer_pool_new (ctrans->context);
}
#ifdef HAVE_NVCODEC_GST_GL
else if (need_gl) {
GST_DEBUG_OBJECT (self, "creating gl pool");
pool = gst_gl_buffer_pool_new (self->gl_context);
}
#endif
#ifdef GST_CUDA_HAS_D3D
else if (need_d3d11) {
GST_DEBUG_OBJECT (self, "creating d3d11 pool");
pool = gst_d3d11_buffer_pool_new (self->d3d11_device);
}
#endif
#ifdef HAVE_NVCODEC_NVMM
else if (need_nvmm) {
guint gpu_id = 0;
GST_DEBUG_OBJECT (self, "create nvmm pool");
g_object_get (ctrans->context, "cuda-device-id", &gpu_id, NULL);
pool = gst_cuda_nvmm_buffer_pool_new ();
if (!pool) {
GST_ERROR_OBJECT (self, "Failed to create pool");
return FALSE;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps,
sizeof (NvBufSurface), min, max);
gst_structure_set (config, "memtype", G_TYPE_UINT, NVBUF_MEM_DEFAULT,
"gpu-id", G_TYPE_UINT, gpu_id, "batch-size", G_TYPE_UINT, 1, NULL);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set config");
gst_object_unref (pool);
return FALSE;
}
if (update_pool) {
gst_query_set_nth_allocation_pool (query,
0, pool, sizeof (NvBufSurface), min, max);
} else {
gst_query_add_allocation_pool (query,
pool, sizeof (NvBufSurface), min, max);
}
gst_object_unref (pool);
/* Don't chain up to parent method, which will break NVMM specific
* config */
return TRUE;
}
#endif
else {
GST_DEBUG_OBJECT (self, "creating system 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);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_set_config (pool, config);
/* Get updated size by cuda buffer pool */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, NULL, &size, NULL, NULL);
gst_structure_free (config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
}
static gboolean
gst_cuda_memory_copy_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query)
{
#if defined(HAVE_NVCODEC_GST_GL) || defined(GST_CUDA_HAS_D3D)
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
gboolean ret;
# ifdef HAVE_NVCODEC_GST_GL
ret = gst_gl_handle_context_query (GST_ELEMENT (self), query,
self->gl_display, self->gl_context, self->other_gl_context);
if (ret)
return TRUE;
# endif
# ifdef GST_CUDA_HAS_D3D
ret = gst_d3d11_handle_context_query (GST_ELEMENT (self), query,
self->d3d11_device);
if (ret)
return TRUE;
# endif
break;
}
default:
break;
}
#endif
return GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
query);
}
static gboolean
gst_cuda_memory_copy_set_info (GstCudaBaseTransform * btrans,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info)
{
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (btrans);
GstCapsFeatures *in_features;
GstCapsFeatures *out_features;
self->in_type = GST_CUDA_BUFFER_COPY_SYSTEM;
self->out_type = GST_CUDA_BUFFER_COPY_SYSTEM;
in_features = gst_caps_get_features (incaps, 0);
out_features = gst_caps_get_features (outcaps, 0);
if (in_features && gst_caps_features_contains (in_features,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) {
self->in_type = GST_CUDA_BUFFER_COPY_CUDA;
}
if (out_features && gst_caps_features_contains (out_features,
GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY)) {
self->out_type = GST_CUDA_BUFFER_COPY_CUDA;
}
#ifdef HAVE_NVCODEC_GST_GL
if (in_features && gst_caps_features_contains (in_features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
self->in_type = GST_CUDA_BUFFER_COPY_GL;
}
if (out_features && gst_caps_features_contains (out_features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
self->out_type = GST_CUDA_BUFFER_COPY_GL;
}
#endif
#ifdef GST_CUDA_HAS_D3D
if (in_features && gst_caps_features_contains (in_features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
self->in_type = GST_CUDA_BUFFER_COPY_D3D11;
}
if (out_features && gst_caps_features_contains (out_features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
self->out_type = GST_CUDA_BUFFER_COPY_D3D11;
}
#endif
#ifdef HAVE_NVCODEC_NVMM
if (gst_cuda_nvmm_init_once ()) {
if (in_features && gst_caps_features_contains (in_features,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY)) {
GST_DEBUG_OBJECT (self, "Input memory type is NVMM");
self->in_type = GST_CUDA_BUFFER_COPY_NVMM;
}
if (out_features && gst_caps_features_contains (out_features,
GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY)) {
GST_DEBUG_OBJECT (self, "Output memory type is NVMM");
self->out_type = GST_CUDA_BUFFER_COPY_NVMM;
}
}
#endif
return TRUE;
}
static GstFlowReturn
gst_cuda_memory_copy_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstCudaMemoryCopy *self = GST_CUDA_MEMORY_COPY (trans);
GstCudaBaseTransform *ctrans = GST_CUDA_BASE_TRANSFORM (trans);
GstMemory *in_mem;
GstMemory *out_mem;
GstVideoInfo *in_info, *out_info;
gboolean ret = FALSE;
GstCudaBufferCopyType in_type = GST_CUDA_BUFFER_COPY_SYSTEM;
GstCudaBufferCopyType out_type = GST_CUDA_BUFFER_COPY_SYSTEM;
gboolean use_device_copy = FALSE;
#ifdef GST_CUDA_HAS_D3D
D3D11_TEXTURE2D_DESC desc;
#endif
in_info = &ctrans->in_info;
out_info = &ctrans->out_info;
in_mem = gst_buffer_peek_memory (inbuf, 0);
if (!in_mem) {
GST_ERROR_OBJECT (self, "Empty input buffer");
return GST_FLOW_ERROR;
}
out_mem = gst_buffer_peek_memory (outbuf, 0);
if (!out_mem) {
GST_ERROR_OBJECT (self, "Empty output buffer");
return GST_FLOW_ERROR;
}
if (self->in_type == GST_CUDA_BUFFER_COPY_NVMM) {
in_type = GST_CUDA_BUFFER_COPY_NVMM;
use_device_copy = TRUE;
} else if (gst_is_cuda_memory (in_mem)) {
in_type = GST_CUDA_BUFFER_COPY_CUDA;
use_device_copy = TRUE;
#ifdef HAVE_NVCODEC_GST_GL
} else if (self->gl_context && gst_is_gl_memory_pbo (in_mem)) {
in_type = GST_CUDA_BUFFER_COPY_GL;
#endif
#ifdef GST_CUDA_HAS_D3D
} else if (self->d3d11_device && gst_is_d3d11_memory (in_mem)
&& gst_d3d11_memory_get_texture_desc (GST_D3D11_MEMORY_CAST (in_mem),
&desc) && desc.Usage == D3D11_USAGE_DEFAULT) {
in_type = GST_CUDA_BUFFER_COPY_D3D11;
#endif
} else {
in_type = GST_CUDA_BUFFER_COPY_SYSTEM;
}
if (self->out_type == GST_CUDA_BUFFER_COPY_NVMM) {
out_type = GST_CUDA_BUFFER_COPY_NVMM;
use_device_copy = TRUE;
} else if (gst_is_cuda_memory (out_mem)) {
out_type = GST_CUDA_BUFFER_COPY_CUDA;
use_device_copy = TRUE;
#ifdef HAVE_NVCODEC_GST_GL
} else if (self->gl_context && gst_is_gl_memory_pbo (out_mem)) {
out_type = GST_CUDA_BUFFER_COPY_GL;
#endif
#ifdef GST_CUDA_HAS_D3D
} else if (self->d3d11_device && gst_is_d3d11_memory (out_mem)
&& gst_d3d11_memory_get_texture_desc (GST_D3D11_MEMORY_CAST (out_mem),
&desc) && desc.Usage == D3D11_USAGE_DEFAULT) {
out_type = GST_CUDA_BUFFER_COPY_D3D11;
#endif
} else {
out_type = GST_CUDA_BUFFER_COPY_SYSTEM;
}
if (!use_device_copy) {
GST_TRACE_OBJECT (self, "Both in/out buffers are not CUDA");
if (!gst_cuda_buffer_copy (outbuf, GST_CUDA_BUFFER_COPY_SYSTEM, out_info,
inbuf, GST_CUDA_BUFFER_COPY_SYSTEM, in_info, ctrans->context,
ctrans->cuda_stream)) {
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
ret = gst_cuda_buffer_copy (outbuf, out_type, out_info, inbuf, in_type,
in_info, ctrans->context, ctrans->cuda_stream);
/* system memory <-> CUDA copy fallback if possible */
if (!ret) {
GstCudaBufferCopyType fallback_in_type = in_type;
GstCudaBufferCopyType fallback_out_type = out_type;
GST_LOG_OBJECT (self,
"Copy %s -> %s failed, checking whether fallback is possible",
gst_cuda_buffer_copy_type_to_string (in_type),
gst_cuda_buffer_copy_type_to_string (out_type));
switch (in_type) {
case GST_CUDA_BUFFER_COPY_GL:
case GST_CUDA_BUFFER_COPY_D3D11:
fallback_in_type = GST_CUDA_BUFFER_COPY_SYSTEM;
break;
default:
break;
}
switch (out_type) {
case GST_CUDA_BUFFER_COPY_GL:
case GST_CUDA_BUFFER_COPY_D3D11:
fallback_out_type = GST_CUDA_BUFFER_COPY_SYSTEM;
break;
default:
break;
}
if (in_type == fallback_in_type && out_type == fallback_out_type) {
GST_ERROR_OBJECT (self, "Failed to copy %s -> %s",
gst_cuda_buffer_copy_type_to_string (in_type),
gst_cuda_buffer_copy_type_to_string (out_type));
return GST_FLOW_ERROR;
}
GST_LOG_OBJECT (self, "Trying %s -> %s fallback",
gst_cuda_buffer_copy_type_to_string (fallback_in_type),
gst_cuda_buffer_copy_type_to_string (fallback_out_type));
ret = gst_cuda_buffer_copy (outbuf, fallback_out_type, out_info, inbuf,
fallback_in_type, in_info, ctrans->context, ctrans->cuda_stream);
}
if (ret)
return GST_FLOW_OK;
if (in_type == GST_CUDA_BUFFER_COPY_NVMM ||
out_type == GST_CUDA_BUFFER_COPY_NVMM) {
GST_ERROR_OBJECT (self, "Failed to copy NVMM memory");
return GST_FLOW_ERROR;
}
/* final fallback using system memory */
ret = gst_cuda_buffer_copy (outbuf, GST_CUDA_BUFFER_COPY_SYSTEM, out_info,
inbuf, GST_CUDA_BUFFER_COPY_SYSTEM, in_info, ctrans->context,
ctrans->cuda_stream);
if (ret)
return GST_FLOW_OK;
GST_ERROR_OBJECT (self, "Failed to copy %s -> %s",
gst_cuda_buffer_copy_type_to_string (in_type),
gst_cuda_buffer_copy_type_to_string (out_type));
return GST_FLOW_ERROR;
}
static void
gst_cuda_upload_class_init (GstCudaUploadClass * klass, gpointer data)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstCudaMemoryCopyClass *copy_class = GST_CUDA_MEMORY_COPY_CLASS (klass);
GstCudaMemoryCopyClassData *cdata = (GstCudaMemoryCopyClassData *) data;
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps));
gst_element_class_set_static_metadata (element_class,
"CUDA uploader", "Filter/Video",
"Uploads data into NVIDA GPU via CUDA APIs",
"Seungha Yang <seungha.yang@navercorp.com>");
trans_class->transform = GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_transform);
copy_class->uploader = TRUE;
gst_caps_unref (cdata->sink_caps);
gst_caps_unref (cdata->src_caps);
g_free (cdata);
}
static void
gst_cuda_upload_init (GstCudaUpload * self)
{
}
static void
gst_cuda_download_before_transform (GstBaseTransform * trans,
GstBuffer * buffer)
{
GstCudaMemoryCopy *copy = GST_CUDA_MEMORY_COPY (trans);
gboolean old;
gboolean new = FALSE;
GST_BASE_TRANSFORM_CLASS (parent_class)->before_transform (trans, buffer);
old = gst_base_transform_is_passthrough (trans);
if (copy->in_type == copy->out_type ||
(copy->in_type == GST_CUDA_BUFFER_COPY_CUDA &&
copy->out_type == GST_CUDA_BUFFER_COPY_SYSTEM &&
copy->downstream_supports_video_meta)) {
new = TRUE;
}
if (new != old) {
GST_INFO_OBJECT (trans, "Updated passthrough: %d", new);
gst_base_transform_reconfigure_src (trans);
gst_base_transform_set_passthrough (trans, new);
}
}
static void
gst_cuda_download_class_init (GstCudaDownloadClass * klass, gpointer data)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstCudaMemoryCopyClass *copy_class = GST_CUDA_MEMORY_COPY_CLASS (klass);
GstCudaMemoryCopyClassData *cdata = (GstCudaMemoryCopyClassData *) data;
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps));
gst_element_class_set_static_metadata (element_class,
"CUDA downloader", "Filter/Video",
"Downloads data from NVIDA GPU via CUDA APIs",
"Seungha Yang <seungha.yang@navercorp.com>");
trans_class->before_transform =
GST_DEBUG_FUNCPTR (gst_cuda_download_before_transform);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_cuda_memory_copy_transform);
copy_class->uploader = FALSE;
gst_caps_unref (cdata->sink_caps);
gst_caps_unref (cdata->src_caps);
g_free (cdata);
}
static void
gst_cuda_download_init (GstCudaDownload * self)
{
}
void
gst_cuda_memory_copy_register (GstPlugin * plugin, guint rank)
{
GType upload_type, download_type;
GTypeInfo upload_type_info = {
sizeof (GstCudaUploadClass),
NULL,
NULL,
(GClassInitFunc) gst_cuda_upload_class_init,
NULL,
NULL,
sizeof (GstCudaUpload),
0,
(GInstanceInitFunc) gst_cuda_upload_init,
};
GTypeInfo download_type_info = {
sizeof (GstCudaDownloadClass),
NULL,
NULL,
(GClassInitFunc) gst_cuda_download_class_init,
NULL,
NULL,
sizeof (GstCudaDownload),
0,
(GInstanceInitFunc) gst_cuda_download_init,
};
GstCaps *sys_caps;
GstCaps *cuda_caps;
#ifdef HAVE_NVCODEC_NVMM
GstCaps *nvmm_caps = NULL;
#endif
#ifdef HAVE_NVCODEC_GST_GL
GstCaps *gl_caps;
#endif
#ifdef GST_CUDA_HAS_D3D
GstCaps *d3d11_caps;
#endif
GstCaps *upload_sink_caps;
GstCaps *upload_src_caps;
GstCaps *download_sink_caps;
GstCaps *download_src_caps;
GstCudaMemoryCopyClassData *upload_cdata;
GstCudaMemoryCopyClassData *download_cdata;
GST_DEBUG_CATEGORY_INIT (gst_cuda_memory_copy_debug,
"cudamemorycopy", 0, "cudamemorycopy");
sys_caps = gst_caps_from_string (GST_VIDEO_CAPS_MAKE (GST_CUDA_FORMATS));
cuda_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY, GST_CUDA_FORMATS));
#ifdef HAVE_NVCODEC_NVMM
if (gst_cuda_nvmm_init_once ()) {
nvmm_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_CUDA_NVMM_MEMORY, GST_CUDA_NVMM_FORMATS));
}
#endif
#ifdef HAVE_NVCODEC_GST_GL
gl_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, GST_CUDA_GL_FORMATS));
#endif
#ifdef GST_CUDA_HAS_D3D
d3d11_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_CUDA_D3D11_FORMATS));
#endif
upload_sink_caps = gst_caps_copy (sys_caps);
#ifdef HAVE_NVCODEC_GST_GL
upload_sink_caps = gst_caps_merge (upload_sink_caps, gst_caps_copy (gl_caps));
#endif
#ifdef GST_CUDA_HAS_D3D
upload_sink_caps =
gst_caps_merge (upload_sink_caps, gst_caps_copy (d3d11_caps));
#endif
#ifdef HAVE_NVCODEC_NVMM
if (nvmm_caps) {
upload_sink_caps = gst_caps_merge (upload_sink_caps,
gst_caps_copy (nvmm_caps));
}
#endif
upload_sink_caps =
gst_caps_merge (upload_sink_caps, gst_caps_copy (cuda_caps));
upload_src_caps = gst_caps_copy (cuda_caps);
#ifdef HAVE_NVCODEC_NVMM
if (nvmm_caps) {
upload_src_caps = gst_caps_merge (upload_src_caps,
gst_caps_copy (nvmm_caps));
}
#endif
upload_src_caps = gst_caps_merge (upload_src_caps, gst_caps_copy (sys_caps));
download_sink_caps = gst_caps_copy (cuda_caps);
#ifdef HAVE_NVCODEC_NVMM
if (nvmm_caps) {
download_sink_caps = gst_caps_merge (download_sink_caps,
gst_caps_copy (nvmm_caps));
}
#endif
download_sink_caps =
gst_caps_merge (download_sink_caps, gst_caps_copy (sys_caps));
download_src_caps = sys_caps;
#ifdef HAVE_NVCODEC_GST_GL
download_src_caps = gst_caps_merge (download_src_caps, gl_caps);
#endif
#ifdef GST_CUDA_HAS_D3D
download_src_caps = gst_caps_merge (download_src_caps, d3d11_caps);
#endif
#ifdef HAVE_NVCODEC_NVMM
if (nvmm_caps) {
download_src_caps = gst_caps_merge (download_src_caps, nvmm_caps);
}
#endif
download_src_caps = gst_caps_merge (download_src_caps, cuda_caps);
GST_MINI_OBJECT_FLAG_SET (upload_sink_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (upload_src_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (download_sink_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (download_src_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
upload_cdata = g_new0 (GstCudaMemoryCopyClassData, 1);
upload_cdata->sink_caps = upload_sink_caps;
upload_cdata->src_caps = upload_src_caps;
upload_type_info.class_data = upload_cdata;
download_cdata = g_new0 (GstCudaMemoryCopyClassData, 1);
download_cdata->sink_caps = download_sink_caps;
download_cdata->src_caps = download_src_caps;
download_type_info.class_data = download_cdata;
upload_type = g_type_register_static (GST_TYPE_CUDA_MEMORY_COPY,
"GstCudaUpload", &upload_type_info, 0);
download_type = g_type_register_static (GST_TYPE_CUDA_MEMORY_COPY,
"GstCudaDownload", &download_type_info, 0);
if (!gst_element_register (plugin, "cudaupload", rank, upload_type))
GST_WARNING ("Failed to register cudaupload element");
if (!gst_element_register (plugin, "cudadownload", rank, download_type))
GST_WARNING ("Failed to register cudadownload element");
}
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