gstreamer/sys/d3d11/gstd3d11colorconvert.c
Seungha Yang 96f0f4b613 d3d11memory: Always use native DXGI format if device support it
Use consistent memory layout between dxva and other shader use case.
For example, use DXGI_FORMAT_NV12 texture format instead of
two textures with DXGI_FORMAT_R8_UNORM and DXGI_FORMAT_R8G8_UNORM.
2020-01-13 01:58:08 +00:00

861 lines
26 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) 2005-2012 David Schleef <ds@schleef.org>
* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.com>
* Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) <2019> Jeongki Kim <jeongki.kim@jeongki.kim>
*
* 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-d3d11colorconvert
* @title: d3d11colorconvert
*
* Convert video frames between supported video formats.
*
* ## Example launch line
* |[
* gst-launch-1.0 -v videotestsrc ! video/x-raw,format=NV12 ! d3d11upload ! d3d11videocolorconvert ! d3d11videosink
* ]|
* This will output a test video (generated in NV12 format) in a video
* window. If the video sink selected does not support NV12
* d3d11colorconvert will automatically convert the video to a format understood
* by the video sink.
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstd3d11colorconvert.h"
#include "gstd3d11utils.h"
#include "gstd3d11memory.h"
#include "gstd3d11device.h"
#include "gstd3d11bufferpool.h"
GST_DEBUG_CATEGORY_STATIC (gst_d3d11_color_convert_debug);
#define GST_CAT_DEFAULT gst_d3d11_color_convert_debug
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_FORMATS))
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_FORMATS))
);
#define gst_d3d11_color_convert_parent_class parent_class
G_DEFINE_TYPE (GstD3D11ColorConvert,
gst_d3d11_color_convert, GST_TYPE_D3D11_BASE_FILTER);
static void gst_d3d11_color_convert_dispose (GObject * object);
static GstCaps *gst_d3d11_color_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_d3d11_color_convert_fixate_caps (GstBaseTransform *
base, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean gst_d3d11_color_convert_filter_meta (GstBaseTransform * trans,
GstQuery * query, GType api, const GstStructure * params);
static gboolean
gst_d3d11_color_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query);
static gboolean
gst_d3d11_color_convert_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static GstFlowReturn gst_d3d11_color_convert_transform (GstBaseTransform *
trans, GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_d3d11_color_convert_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
/* copies the given caps */
static GstCaps *
gst_d3d11_color_convert_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature))
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static void
gst_d3d11_color_convert_class_init (GstD3D11ColorConvertClass * 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);
gobject_class->dispose = gst_d3d11_color_convert_dispose;
gst_element_class_add_static_pad_template (element_class, &sink_template);
gst_element_class_add_static_pad_template (element_class, &src_template);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 Colorspace converter",
"Filter/Converter/Video/Hardware",
"Converts video from one colorspace to another using D3D11",
"Seungha Yang <seungha.yang@navercorp.com>, "
"Jeongki Kim <jeongki.kim@jeongki.kim>");
trans_class->passthrough_on_same_caps = TRUE;
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_transform_caps);
trans_class->fixate_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_fixate_caps);
trans_class->filter_meta =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_filter_meta);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_decide_allocation);
trans_class->transform =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_transform);
bfilter_class->set_info =
GST_DEBUG_FUNCPTR (gst_d3d11_color_convert_set_info);
GST_DEBUG_CATEGORY_INIT (gst_d3d11_color_convert_debug,
"d3d11colorconvert", 0, "Video Colorspace Convert via D3D11");
}
static void
gst_d3d11_color_convert_init (GstD3D11ColorConvert * self)
{
}
static void
gst_d3d11_color_convert_clear_shader_resource (GstD3D11ColorConvert * self)
{
gint i;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (self->shader_resource_view[i]) {
ID3D11ShaderResourceView_Release (self->shader_resource_view[i]);
self->shader_resource_view[i] = NULL;
}
if (self->render_target_view[i]) {
ID3D11RenderTargetView_Release (self->render_target_view[i]);
self->render_target_view[i] = NULL;
}
}
self->num_input_view = 0;
self->num_output_view = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (self->in_texture[i]) {
ID3D11Texture2D_Release (self->in_texture[i]);
self->in_texture[i] = NULL;
}
if (self->out_texture[i]) {
ID3D11Texture2D_Release (self->out_texture[i]);
self->out_texture[i] = NULL;
}
}
if (self->converter)
gst_d3d11_color_converter_free (self->converter);
self->converter = NULL;
}
static void
gst_d3d11_color_convert_dispose (GObject * object)
{
GstD3D11ColorConvert *self = GST_D3D11_COLOR_CONVERT (object);
gst_d3d11_color_convert_clear_shader_resource (self);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstCaps *
gst_d3d11_color_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_d3d11_color_convert_caps_remove_format_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_d3d11_color_convert_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *result;
GST_DEBUG_OBJECT (trans, "trying to fixate othercaps %" GST_PTR_FORMAT
" based on caps %" GST_PTR_FORMAT, othercaps, caps);
result = gst_d3d11_caps_fixate_format (caps, gst_caps_ref (othercaps));
if (!result)
result = othercaps;
else
gst_caps_unref (othercaps);
/* fixate remaining fields */
result = gst_caps_fixate (result);
if (direction == GST_PAD_SINK) {
if (gst_caps_is_subset (caps, result)) {
gst_caps_replace (&result, caps);
}
}
return result;
}
static gboolean
gst_d3d11_color_convert_filter_meta (GstBaseTransform * trans,
GstQuery * query, GType api, const GstStructure * params)
{
/* This element cannot passthrough the crop meta, because it would convert the
* wrong sub-region of the image, and worst, our output image may not be large
* enough for the crop to be applied later */
if (api == GST_VIDEO_CROP_META_API_TYPE)
return FALSE;
/* propose all other metadata upstream */
return TRUE;
}
static gboolean
gst_d3d11_color_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint n_pools, i;
GstStructure *config;
guint size;
GstD3D11AllocationParams *d3d11_params;
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;
n_pools = gst_query_get_n_allocation_pools (query);
for (i = 0; i < n_pools; i++) {
gst_query_parse_nth_allocation_pool (query, i, &pool, NULL, NULL, NULL);
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
}
if (!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);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (filter->device, &info, 0,
D3D11_BIND_SHADER_RESOURCE);
} else {
/* Set bind flag */
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&info); i++) {
d3d11_params->desc[i].BindFlags |= D3D11_BIND_SHADER_RESOURCE;
}
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
/* size will be updated by d3d11 buffer pool */
gst_buffer_pool_config_set_params (config, caps, 0, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
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);
size = GST_D3D11_BUFFER_POOL (pool)->buffer_size;
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
return TRUE;
/* ERRORS */
config_failed:
{
GST_ERROR_OBJECT (filter, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_d3d11_color_convert_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min = 0, max = 0;
GstStructure *config;
GstD3D11AllocationParams *d3d11_params;
gboolean update_pool = FALSE;
GstVideoInfo info;
gint i;
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
if (!gst_video_info_from_caps (&info, outcaps))
return FALSE;
size = GST_VIDEO_INFO_SIZE (&info);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool && !GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
update_pool = TRUE;
}
if (!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);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (filter->device, &info, 0,
D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
} else {
/* Set bind flag */
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&info); i++) {
d3d11_params->desc[i].BindFlags |=
(D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
}
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_set_config (pool, config);
size = GST_D3D11_BUFFER_POOL (pool)->buffer_size;
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
create_shader_input_resource (GstD3D11ColorConvert * self,
GstD3D11Device * device, const GstD3D11Format * format, GstVideoInfo * info)
{
D3D11_TEXTURE2D_DESC texture_desc = { 0, };
D3D11_SHADER_RESOURCE_VIEW_DESC view_desc = { 0 };
HRESULT hr;
ID3D11Device *device_handle;
ID3D11Texture2D *tex[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11ShaderResourceView *view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i;
if (self->num_input_view)
return TRUE;
device_handle = gst_d3d11_device_get_device_handle (device);
texture_desc.MipLevels = 1;
texture_desc.ArraySize = 1;
texture_desc.SampleDesc.Count = 1;
texture_desc.SampleDesc.Quality = 0;
texture_desc.Usage = D3D11_USAGE_DEFAULT;
texture_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
if (format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
texture_desc.Width = GST_VIDEO_INFO_COMP_WIDTH (info, i);
texture_desc.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
texture_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
}
} else {
texture_desc.Width = GST_VIDEO_INFO_WIDTH (info);
texture_desc.Height = GST_VIDEO_INFO_HEIGHT (info);
texture_desc.Format = format->dxgi_format;
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[0]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
if (format->dxgi_format == DXGI_FORMAT_NV12 ||
format->dxgi_format == DXGI_FORMAT_P010) {
ID3D11Resource_AddRef (tex[0]);
tex[1] = tex[0];
}
}
view_desc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
view_desc.Texture2D.MipLevels = 1;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
view_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateShaderResourceView (device_handle,
(ID3D11Resource *) tex[i], &view_desc, &view[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self,
"Failed to create resource view (0x%x)", (guint) hr);
goto error;
}
}
self->num_input_view = i;
GST_DEBUG_OBJECT (self,
"%d shader resource view created", self->num_input_view);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
self->in_texture[i] = tex[i];
self->shader_resource_view[i] = view[i];
}
return TRUE;
error:
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (view[i])
ID3D11ShaderResourceView_Release (view[i]);
}
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (tex[i])
ID3D11Texture2D_Release (tex[i]);
}
return FALSE;
}
static gboolean
create_shader_output_resource (GstD3D11ColorConvert * self,
GstD3D11Device * device, const GstD3D11Format * format, GstVideoInfo * info)
{
D3D11_TEXTURE2D_DESC texture_desc = { 0, };
D3D11_RENDER_TARGET_VIEW_DESC view_desc = { 0, };
HRESULT hr;
ID3D11Device *device_handle;
ID3D11Texture2D *tex[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11RenderTargetView *view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i;
if (self->num_output_view)
return TRUE;
device_handle = gst_d3d11_device_get_device_handle (device);
texture_desc.MipLevels = 1;
texture_desc.ArraySize = 1;
texture_desc.SampleDesc.Count = 1;
texture_desc.SampleDesc.Quality = 0;
texture_desc.Usage = D3D11_USAGE_DEFAULT;
texture_desc.BindFlags =
D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
if (format->dxgi_format == DXGI_FORMAT_UNKNOWN) {
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
texture_desc.Width = GST_VIDEO_INFO_COMP_WIDTH (info, i);
texture_desc.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
texture_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
}
} else {
texture_desc.Width = GST_VIDEO_INFO_WIDTH (info);
texture_desc.Height = GST_VIDEO_INFO_HEIGHT (info);
texture_desc.Format = format->dxgi_format;
hr = ID3D11Device_CreateTexture2D (device_handle,
&texture_desc, NULL, &tex[0]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self, "Failed to create texture (0x%x)", (guint) hr);
goto error;
}
if (format->dxgi_format == DXGI_FORMAT_NV12 ||
format->dxgi_format == DXGI_FORMAT_P010) {
ID3D11Resource_AddRef (tex[0]);
tex[1] = tex[0];
}
}
view_desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
view_desc.Texture2D.MipSlice = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (format->resource_format[i] == DXGI_FORMAT_UNKNOWN)
break;
view_desc.Format = format->resource_format[i];
hr = ID3D11Device_CreateRenderTargetView (device_handle,
(ID3D11Resource *) tex[i], &view_desc, &view[i]);
if (!gst_d3d11_result (hr, device)) {
GST_ERROR_OBJECT (self,
"Failed to create %dth render target view (0x%x)", i, (guint) hr);
goto error;
}
}
self->num_output_view = i;
GST_DEBUG_OBJECT (self, "%d render view created", self->num_output_view);
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
self->out_texture[i] = tex[i];
self->render_target_view[i] = view[i];
}
return TRUE;
error:
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (view[i])
ID3D11RenderTargetView_Release (view[i]);
}
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (tex[i])
ID3D11Texture2D_Release (tex[i]);
}
return FALSE;
}
static gboolean
gst_d3d11_color_convert_set_info (GstD3D11BaseFilter * filter,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info)
{
GstD3D11ColorConvert *self = GST_D3D11_COLOR_CONVERT (filter);
const GstVideoInfo *unknown_info;
if (gst_base_transform_is_passthrough (GST_BASE_TRANSFORM (filter)))
return TRUE;
gst_d3d11_color_convert_clear_shader_resource (self);
GST_DEBUG_OBJECT (self, "Setup convert with format %s -> %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (in_info)),
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (out_info)));
/* these must match */
if (in_info->width != out_info->width || in_info->height != out_info->height
|| in_info->fps_n != out_info->fps_n || in_info->fps_d != out_info->fps_d)
goto format_mismatch;
/* if present, these must match too */
if (in_info->par_n != out_info->par_n || in_info->par_d != out_info->par_d)
goto format_mismatch;
/* if present, these must match too */
if (in_info->interlace_mode != out_info->interlace_mode)
goto format_mismatch;
/* don't need to create converter */
if (GST_VIDEO_INFO_FORMAT (in_info) == GST_VIDEO_INFO_FORMAT (out_info))
return TRUE;
self->in_d3d11_format =
gst_d3d11_device_format_from_gst (filter->device,
GST_VIDEO_INFO_FORMAT (in_info));
if (!self->in_d3d11_format) {
unknown_info = in_info;
goto format_unknown;
}
self->out_d3d11_format =
gst_d3d11_device_format_from_gst (filter->device,
GST_VIDEO_INFO_FORMAT (out_info));
if (!self->out_d3d11_format) {
unknown_info = out_info;
goto format_unknown;
}
self->converter = gst_d3d11_color_converter_new (filter->device,
in_info, out_info);
if (!self->converter) {
GST_ERROR_OBJECT (self, "couldn't set converter");
return FALSE;
}
return TRUE;
/* ERRORS */
format_mismatch:
{
GST_ERROR_OBJECT (self, "input and output formats do not match");
return FALSE;
}
format_unknown:
{
GST_ERROR_OBJECT (self,
"%s couldn't be converted to d3d11 format",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (unknown_info)));
return FALSE;
}
}
static GstFlowReturn
gst_d3d11_color_convert_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstD3D11BaseFilter *filter = GST_D3D11_BASE_FILTER (trans);
GstD3D11ColorConvert *self = GST_D3D11_COLOR_CONVERT (trans);
ID3D11DeviceContext *context_handle;
ID3D11ShaderResourceView *resource_view[GST_VIDEO_MAX_PLANES] = { NULL, };
ID3D11RenderTargetView *render_view[GST_VIDEO_MAX_PLANES] = { NULL, };
gint i, j, view_index;
gboolean copy_input = FALSE;
gboolean copy_output = FALSE;
GstD3D11Device *device = filter->device;
context_handle = gst_d3d11_device_get_device_context_handle (device);
view_index = 0;
for (i = 0; i < gst_buffer_n_memory (inbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (inbuf, i);
GstD3D11Memory *d3d11_mem;
GstMapInfo info;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
/* map to transfer pending staging data if any */
if (d3d11_mem->desc.Usage == D3D11_USAGE_DEFAULT) {
gst_memory_map (mem, &info, GST_MAP_READ | GST_MAP_D3D11);
gst_memory_unmap (mem, &info);
}
if (gst_d3d11_memory_ensure_shader_resource_view (d3d11_mem)) {
GST_TRACE_OBJECT (self, "Use input texture resource without copy");
for (j = 0; j < d3d11_mem->num_shader_resource_views; j++) {
resource_view[view_index] = d3d11_mem->shader_resource_view[j];
view_index++;
}
} else {
GST_TRACE_OBJECT (self, "Render using fallback input texture");
copy_input = TRUE;
if (!create_shader_input_resource (self, device,
self->in_d3d11_format, &filter->in_info)) {
GST_ERROR_OBJECT (self, "Failed to configure fallback input texture");
return GST_FLOW_ERROR;
}
break;
}
}
/* if input memory has no resource view,
* copy texture into our fallback texture */
if (copy_input) {
gst_d3d11_device_lock (device);
for (i = 0; i < gst_buffer_n_memory (inbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (inbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
ID3D11DeviceContext_CopySubresourceRegion (context_handle,
(ID3D11Resource *) self->in_texture[i], 0, 0, 0, 0,
(ID3D11Resource *) d3d11_mem->texture, 0, NULL);
}
gst_d3d11_device_unlock (device);
}
view_index = 0;
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
if (gst_d3d11_memory_ensure_render_target_view (d3d11_mem)) {
GST_TRACE_OBJECT (self, "Render to output texture directly");
for (j = 0; j < d3d11_mem->num_render_target_views; j++) {
render_view[view_index] = d3d11_mem->render_target_view[j];
view_index++;
}
} else {
GST_TRACE_OBJECT (self, "Render to fallback output texture");
copy_output = TRUE;
if (!create_shader_output_resource (self, device, self->out_d3d11_format,
&filter->out_info)) {
GST_ERROR_OBJECT (self, "Failed to configure fallback output texture");
return GST_FLOW_ERROR;
}
break;
}
}
if (!gst_d3d11_color_converter_convert (self->converter,
copy_input ? self->shader_resource_view : resource_view,
copy_output ? self->render_target_view : render_view)) {
GST_ERROR_OBJECT (self, "Failed to convert");
return GST_FLOW_ERROR;
}
if (copy_output) {
gst_d3d11_device_lock (device);
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GstD3D11Memory *d3d11_mem;
g_assert (gst_is_d3d11_memory (mem));
d3d11_mem = (GstD3D11Memory *) mem;
ID3D11DeviceContext_CopySubresourceRegion (context_handle,
(ID3D11Resource *) d3d11_mem->texture, 0, 0, 0, 0,
(ID3D11Resource *) self->out_texture[i], 0, NULL);
}
gst_d3d11_device_unlock (device);
} else {
for (i = 0; i < gst_buffer_n_memory (outbuf); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
GST_MINI_OBJECT_FLAG_SET (mem, GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD);
}
}
return GST_FLOW_OK;
}