gstreamer/sys/d3d11/gstd3d11upload.cpp

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/* GStreamer
* Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.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.
*/
/**
* SECTION:element-d3d11upload
* @title: d3d11upload
*
* Upload video frame to Direct3D11 texture memory
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! d3d11upload ! d3d11videosinkelement
* ```
* This pipeline will upload video test frame (system memory) into Direct3D11
* textures and d3d11videosinkelement will display frames on screen.
*
* Since: 1.18
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstd3d11upload.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_d3d11_upload_debug);
#define GST_CAT_DEFAULT gst_d3d11_upload_debug
static GstStaticCaps sink_template_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_D3D11_ALL_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_ALL_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY,
GST_D3D11_ALL_FORMATS) ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY
"," GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_ALL_FORMATS));
static GstStaticCaps src_template_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_ALL_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_ALL_FORMATS) ";"
GST_VIDEO_CAPS_MAKE (GST_D3D11_ALL_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_ALL_FORMATS));
struct _GstD3D11Upload
{
GstD3D11BaseFilter parent;
GstBuffer *staging_buffer;
};
#define gst_d3d11_upload_parent_class parent_class
G_DEFINE_TYPE (GstD3D11Upload, gst_d3d11_upload, GST_TYPE_D3D11_BASE_FILTER);
static void gst_d3d11_upload_dispose (GObject * object);
static gboolean gst_d3d11_upload_stop (GstBaseTransform * trans);
static gboolean gst_d3d11_upload_sink_event (GstBaseTransform * trans,
GstEvent * event);
static GstCaps *gst_d3d11_upload_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_d3d11_upload_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query);
static gboolean gst_d3d11_upload_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static GstFlowReturn gst_d3d11_upload_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_d3d11_upload_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
static void
gst_d3d11_upload_class_init (GstD3D11UploadClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstD3D11BaseFilterClass *bfilter_class = GST_D3D11_BASE_FILTER_CLASS (klass);
GstCaps *caps;
gobject_class->dispose = gst_d3d11_upload_dispose;
caps = gst_d3d11_get_updated_template_caps (&sink_template_caps);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
gst_caps_unref (caps);
caps = gst_d3d11_get_updated_template_caps (&src_template_caps);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps));
gst_caps_unref (caps);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 uploader", "Filter/Video",
"Uploads data into Direct3D11 texture memory",
"Seungha Yang <seungha.yang@navercorp.com>");
trans_class->passthrough_on_same_caps = TRUE;
trans_class->stop = GST_DEBUG_FUNCPTR (gst_d3d11_upload_stop);
trans_class->sink_event = GST_DEBUG_FUNCPTR (gst_d3d11_upload_sink_event);
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_upload_transform_caps);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_upload_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_upload_decide_allocation);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_d3d11_upload_transform);
bfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_d3d11_upload_set_info);
GST_DEBUG_CATEGORY_INIT (gst_d3d11_upload_debug,
"d3d11upload", 0, "d3d11upload Element");
}
static void
gst_d3d11_upload_init (GstD3D11Upload * upload)
{
}
static void
gst_d3d11_upload_dispose (GObject * object)
{
GstD3D11Upload *self = GST_D3D11_UPLOAD (object);
gst_clear_buffer (&self->staging_buffer);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static gboolean
gst_d3d11_upload_stop (GstBaseTransform * trans)
{
GstD3D11Upload *self = GST_D3D11_UPLOAD (trans);
gst_clear_buffer (&self->staging_buffer);
return GST_BASE_TRANSFORM_CLASS (parent_class)->stop (trans);
}
static gboolean
gst_d3d11_upload_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstD3D11Upload *self = GST_D3D11_UPLOAD (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
/* We don't need to hold this staging buffer after eos */
gst_clear_buffer (&self->staging_buffer);
break;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
}
static GstCaps *
_set_caps_features (const GstCaps * caps, const gchar * feature_name)
{
guint i, j, m, n;
GstCaps *tmp;
GstCapsFeatures *overlay_feature =
gst_caps_features_from_string
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
tmp = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features, *orig_features;
GstStructure *s = gst_caps_get_structure (caps, i);
orig_features = gst_caps_get_features (caps, i);
features = gst_caps_features_new (feature_name, NULL);
if (gst_caps_features_is_any (orig_features)) {
gst_caps_append_structure_full (tmp, gst_structure_copy (s),
gst_caps_features_copy (features));
if (!gst_caps_features_contains (features,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION))
gst_caps_features_add (features,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
} else {
m = gst_caps_features_get_size (orig_features);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (orig_features, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
continue;
if (gst_caps_features_contains (overlay_feature, feature)) {
gst_caps_features_add (features, feature);
}
}
}
gst_caps_append_structure_full (tmp, gst_structure_copy (s), features);
}
gst_caps_features_free (overlay_feature);
return tmp;
}
static GstCaps *
gst_d3d11_upload_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
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 = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
tmp = gst_caps_merge (gst_caps_ref (caps), tmp);
} else {
GstCaps *newcaps;
tmp = gst_caps_ref (caps);
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
tmp = gst_caps_merge (tmp, newcaps);
}
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;
}
static gboolean
gst_d3d11_upload_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstVideoInfo info;
GstBufferPool *pool;
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;
gboolean is_d3d11 = FALSE;
features = gst_caps_get_features (caps, 0);
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (filter, "upstream support d3d11 memory");
pool = gst_d3d11_buffer_pool_new (filter->device);
is_d3d11 = TRUE;
} else {
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);
/* d3d11 pool does not support video alignment */
if (!is_d3d11) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
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))
goto config_failed;
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
if (is_d3d11) {
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config,
nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
}
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
}
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
config_failed:
{
GST_ERROR_OBJECT (filter, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_d3d11_upload_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min, max;
GstStructure *config;
gboolean update_pool = FALSE;
GstVideoInfo vinfo;
const GstD3D11Format *d3d11_format;
GstD3D11AllocationParams *d3d11_params;
guint bind_flags = 0;
guint i;
DXGI_FORMAT dxgi_format = DXGI_FORMAT_UNKNOWN;
UINT supported = 0;
HRESULT hr;
ID3D11Device *device_handle;
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
gst_video_info_from_caps (&vinfo, outcaps);
d3d11_format = gst_d3d11_device_format_from_gst (filter->device,
GST_VIDEO_INFO_FORMAT (&vinfo));
if (!d3d11_format) {
GST_ERROR_OBJECT (filter, "Unknown format caps %" GST_PTR_FORMAT, outcaps);
return FALSE;
}
if (d3d11_format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
dxgi_format = d3d11_format->resource_format[0];
} else {
dxgi_format = d3d11_format->dxgi_format;
}
device_handle = gst_d3d11_device_get_device_handle (filter->device);
hr = device_handle->CheckFormatSupport (dxgi_format, &supported);
if (gst_d3d11_result (hr, filter->device)) {
if ((supported & D3D11_FORMAT_SUPPORT_SHADER_SAMPLE) ==
D3D11_FORMAT_SUPPORT_SHADER_SAMPLE) {
bind_flags |= D3D11_BIND_SHADER_RESOURCE;
}
if ((supported & D3D11_FORMAT_SUPPORT_RENDER_TARGET) ==
D3D11_FORMAT_SUPPORT_RENDER_TARGET) {
bind_flags |= D3D11_BIND_RENDER_TARGET;
}
}
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool) {
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_clear_object (&pool);
} else {
GstD3D11BufferPool *dpool = GST_D3D11_BUFFER_POOL (pool);
if (dpool->device != filter->device)
gst_clear_object (&pool);
}
}
update_pool = TRUE;
} else {
size = GST_VIDEO_INFO_SIZE (&vinfo);
min = max = 0;
}
if (!pool) {
GST_DEBUG_OBJECT (trans, "create our pool");
pool = gst_d3d11_buffer_pool_new (filter->device);
}
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);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (filter->device, &vinfo,
(GstD3D11AllocationFlags) 0, bind_flags);
} else {
/* Set bind flag */
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&vinfo); i++) {
d3d11_params->desc[i].BindFlags |= bind_flags;
}
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
gst_buffer_pool_set_config (pool, config);
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
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_d3d11_upload_can_use_staging_buffer (GstD3D11Upload * self,
GstBuffer * outbuf)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (self);
ID3D11Device *device_handle =
gst_d3d11_device_get_device_handle (filter->device);
if (!gst_d3d11_buffer_can_access_device (outbuf, device_handle))
return FALSE;
if (self->staging_buffer)
return TRUE;
self->staging_buffer = gst_d3d11_allocate_staging_buffer_for (outbuf,
&filter->out_info, TRUE);
if (!self->staging_buffer) {
GST_WARNING_OBJECT (self, "Couldn't allocate staging buffer");
return FALSE;
}
return TRUE;
}
static GstFlowReturn
gst_d3d11_upload_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstD3D11Upload *self = GST_D3D11_UPLOAD (trans);
GstVideoFrame in_frame, out_frame;
GstFlowReturn ret = GST_FLOW_OK;
gboolean use_staging_buf;
GstBuffer *target_outbuf = outbuf;
guint i;
use_staging_buf = gst_d3d11_upload_can_use_staging_buffer (self, outbuf);
if (use_staging_buf) {
GST_TRACE_OBJECT (self, "Copy input buffer to staging buffer");
target_outbuf = self->staging_buffer;
}
if (!gst_video_frame_map (&in_frame, &filter->in_info, inbuf,
(GstMapFlags) (GST_MAP_READ | GST_VIDEO_FRAME_MAP_FLAG_NO_REF)))
goto invalid_buffer;
if (!gst_video_frame_map (&out_frame, &filter->out_info, target_outbuf,
(GstMapFlags) (GST_MAP_WRITE | GST_VIDEO_FRAME_MAP_FLAG_NO_REF))) {
gst_video_frame_unmap (&in_frame);
goto invalid_buffer;
}
for (i = 0; i < GST_VIDEO_FRAME_N_PLANES (&in_frame); i++) {
if (!gst_video_frame_copy_plane (&out_frame, &in_frame, i)) {
GST_ERROR_OBJECT (filter, "Couldn't copy plane %d", i);
ret = GST_FLOW_ERROR;
break;
}
}
gst_video_frame_unmap (&out_frame);
gst_video_frame_unmap (&in_frame);
/* Copy staging texture to d3d11 texture */
if (use_staging_buf) {
if (!gst_d3d11_buffer_copy_into (outbuf,
self->staging_buffer, &filter->out_info)) {
GST_ERROR_OBJECT (self, "Cannot copy staging texture into texture");
return GST_FLOW_ERROR;
}
}
return ret;
/* ERRORS */
invalid_buffer:
{
GST_ELEMENT_WARNING (filter, CORE, NOT_IMPLEMENTED, (NULL),
("invalid video buffer received"));
return GST_FLOW_ERROR;
}
}
static gboolean
gst_d3d11_upload_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info)
{
GstD3D11Upload *self = GST_D3D11_UPLOAD (filter);
gst_clear_buffer (&self->staging_buffer);
return TRUE;
}