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gstreamer/ext/vulkan/vkcolorconvert.c
Matthew Waters d9248560e4 vulkancolorconvert: explicitly initalize swizzle arrays 
Fixes uninitialized access of the indexed values larger than
the number of planes in the video format.
2019-08-28 10:34:39 +00:00

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/*
* GStreamer
* Copyright (C) 2019 Matthew Waters <matthew@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.
*/
/**
* SECTION:element-vulkanimageidentity
* @title: vulkanimgeidentity
*
* vulkanimageidentity produces a vulkan image that is a copy of the input image.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "vkcolorconvert.h"
#include "vkshader.h"
#include "shaders/identity.vert.h"
#include "shaders/swizzle.frag.h"
#include "shaders/swizzle_and_clobber_alpha.frag.h"
#include "shaders/yuy2_to_rgb.frag.h"
#include "shaders/ayuv_to_rgb.frag.h"
#include "shaders/nv12_to_rgb.frag.h"
#include "shaders/rgb_to_ayuv.frag.h"
#include "shaders/rgb_to_yuy2.frag.h"
#include "shaders/rgb_to_nv12.frag.h"
GST_DEBUG_CATEGORY (gst_debug_vulkan_color_convert);
#define GST_CAT_DEFAULT gst_debug_vulkan_color_convert
#define N_SHADER_INFO (8*16)
static shader_info shader_infos[N_SHADER_INFO];
#define PUSH_CONSTANT_RANGE_NULL_INIT (VkPushConstantRange) { \
.stageFlags = 0, \
.offset = 0, \
.size = 0, \
}
static void
get_rgb_format_swizzle_order (GstVideoFormat format,
gint swizzle[GST_VIDEO_MAX_COMPONENTS])
{
const GstVideoFormatInfo *finfo = gst_video_format_get_info (format);
int c_i = 0, i;
g_return_if_fail (finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB
|| format == GST_VIDEO_FORMAT_AYUV);
for (i = 0; i < finfo->n_components; i++) {
swizzle[c_i++] = finfo->poffset[i];
}
/* special case spaced RGB formats as the space does not contain a poffset
* value and we need all four components to be valid in order to swizzle
* correctly */
if (format == GST_VIDEO_FORMAT_xRGB || format == GST_VIDEO_FORMAT_xBGR) {
swizzle[c_i++] = 0;
} else if (format == GST_VIDEO_FORMAT_RGBx || format == GST_VIDEO_FORMAT_BGRx) {
swizzle[c_i++] = 3;
} else {
for (i = finfo->n_components; i < GST_VIDEO_MAX_COMPONENTS; i++) {
swizzle[c_i++] = -1;
}
}
}
static void
get_vulkan_rgb_format_swizzle_order (VkFormat format, gint * swizzle,
guint swizzle_count, guint offset)
{
const GstVulkanFormatInfo *finfo = gst_vulkan_format_get_info (format);
int i;
g_return_if_fail (finfo->flags & GST_VULKAN_FORMAT_FLAG_RGB);
g_return_if_fail (finfo->n_components <= swizzle_count);
for (i = 0; i < finfo->n_components; i++) {
swizzle[i] = offset + finfo->poffset[i];
}
for (i = finfo->n_components; i < swizzle_count; i++) {
swizzle[i] = -1;
}
}
/* given a swizzle index, produce an index such that:
*
* swizzle[idx[i]] == identity[i] where:
* - swizzle is the original swizzle
* - idx is the result
* - identity = {0, 1, 2,...}
* - unset fields are marked by -1
*/
static void
swizzle_identity_order (gint * swizzle, gint * idx)
{
int i;
for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++) {
idx[i] = -1;
}
for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++) {
if (swizzle[i] >= 0 && swizzle[i] < 4 && idx[swizzle[i]] == -1) {
idx[swizzle[i]] = i;
}
}
}
typedef struct
{
double dm[4][4];
} Matrix4;
static void
matrix_debug (const Matrix4 * s)
{
GST_DEBUG ("[%f %f %f %f]", s->dm[0][0], s->dm[0][1], s->dm[0][2],
s->dm[0][3]);
GST_DEBUG ("[%f %f %f %f]", s->dm[1][0], s->dm[1][1], s->dm[1][2],
s->dm[1][3]);
GST_DEBUG ("[%f %f %f %f]", s->dm[2][0], s->dm[2][1], s->dm[2][2],
s->dm[2][3]);
GST_DEBUG ("[%f %f %f %f]", s->dm[3][0], s->dm[3][1], s->dm[3][2],
s->dm[3][3]);
}
static void
matrix_to_float (const Matrix4 * m, float *ret)
{
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
ret[j * 4 + i] = m->dm[i][j];
}
}
}
static void
matrix_set_identity (Matrix4 * m)
{
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
m->dm[i][j] = (i == j);
}
}
}
static void
matrix_copy (Matrix4 * d, const Matrix4 * s)
{
gint i, j;
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
d->dm[i][j] = s->dm[i][j];
}
/* Perform 4x4 matrix multiplication:
* - @dst@ = @a@ * @b@
* - @dst@ may be a pointer to @a@ andor @b@
*/
static void
matrix_multiply (Matrix4 * dst, Matrix4 * a, Matrix4 * b)
{
Matrix4 tmp;
int i, j, k;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
double x = 0;
for (k = 0; k < 4; k++) {
x += a->dm[i][k] * b->dm[k][j];
}
tmp.dm[i][j] = x;
}
}
matrix_copy (dst, &tmp);
}
#if 0
static void
matrix_invert (Matrix4 * d, Matrix4 * s)
{
Matrix4 tmp;
int i, j;
double det;
matrix_set_identity (&tmp);
for (j = 0; j < 3; j++) {
for (i = 0; i < 3; i++) {
tmp.dm[j][i] =
s->dm[(i + 1) % 3][(j + 1) % 3] * s->dm[(i + 2) % 3][(j + 2) % 3] -
s->dm[(i + 1) % 3][(j + 2) % 3] * s->dm[(i + 2) % 3][(j + 1) % 3];
}
}
det =
tmp.dm[0][0] * s->dm[0][0] + tmp.dm[0][1] * s->dm[1][0] +
tmp.dm[0][2] * s->dm[2][0];
for (j = 0; j < 3; j++) {
for (i = 0; i < 3; i++) {
tmp.dm[i][j] /= det;
}
}
matrix_copy (d, &tmp);
}
#endif
static void
matrix_offset_components (Matrix4 * m, double a1, double a2, double a3)
{
Matrix4 a;
matrix_set_identity (&a);
a.dm[0][3] = a1;
a.dm[1][3] = a2;
a.dm[2][3] = a3;
matrix_debug (&a);
matrix_multiply (m, &a, m);
}
static void
matrix_scale_components (Matrix4 * m, double a1, double a2, double a3)
{
Matrix4 a;
matrix_set_identity (&a);
a.dm[0][0] = a1;
a.dm[1][1] = a2;
a.dm[2][2] = a3;
matrix_multiply (m, &a, m);
}
static void
matrix_YCbCr_to_RGB (Matrix4 * m, double Kr, double Kb)
{
double Kg = 1.0 - Kr - Kb;
Matrix4 k = {
{
{1., 0., 2 * (1 - Kr), 0.},
{1., -2 * Kb * (1 - Kb) / Kg, -2 * Kr * (1 - Kr) / Kg, 0.},
{1., 2 * (1 - Kb), 0., 0.},
{0., 0., 0., 1.},
}
};
matrix_multiply (m, &k, m);
}
typedef struct
{
GstVideoInfo in_info;
GstVideoInfo out_info;
Matrix4 to_RGB_matrix;
Matrix4 to_YUV_matrix;
Matrix4 convert_matrix;
} ConvertInfo;
static void
convert_to_RGB (ConvertInfo * conv, Matrix4 * m)
{
GstVideoInfo *info = &conv->in_info;
{
const GstVideoFormatInfo *uinfo;
gint offset[4], scale[4], depth[4];
int i;
uinfo = gst_video_format_get_info (GST_VIDEO_INFO_FORMAT (info));
/* bring color components to [0..1.0] range */
gst_video_color_range_offsets (info->colorimetry.range, uinfo, offset,
scale);
for (i = 0; i < uinfo->n_components; i++)
depth[i] = (1 << uinfo->depth[i]) - 1;
matrix_offset_components (m, -offset[0] / (float) depth[0],
-offset[1] / (float) depth[1], -offset[2] / (float) depth[2]);
matrix_scale_components (m, depth[0] / ((float) scale[0]),
depth[1] / ((float) scale[1]), depth[2] / ((float) scale[2]));
GST_DEBUG ("to RGB scale/offset matrix");
matrix_debug (m);
}
if (GST_VIDEO_INFO_IS_YUV (info)) {
gdouble Kr, Kb;
if (gst_video_color_matrix_get_Kr_Kb (info->colorimetry.matrix, &Kr, &Kb))
matrix_YCbCr_to_RGB (m, Kr, Kb);
GST_DEBUG ("to RGB matrix");
matrix_debug (m);
}
}
static void
matrix_RGB_to_YCbCr (Matrix4 * m, double Kr, double Kb)
{
double Kg = 1.0 - Kr - Kb;
Matrix4 k;
double x;
k.dm[0][0] = Kr;
k.dm[0][1] = Kg;
k.dm[0][2] = Kb;
k.dm[0][3] = 0;
x = 1 / (2 * (1 - Kb));
k.dm[1][0] = -x * Kr;
k.dm[1][1] = -x * Kg;
k.dm[1][2] = x * (1 - Kb);
k.dm[1][3] = 0;
x = 1 / (2 * (1 - Kr));
k.dm[2][0] = x * (1 - Kr);
k.dm[2][1] = -x * Kg;
k.dm[2][2] = -x * Kb;
k.dm[2][3] = 0;
k.dm[3][0] = 0;
k.dm[3][1] = 0;
k.dm[3][2] = 0;
k.dm[3][3] = 1;
matrix_multiply (m, &k, m);
}
static void
convert_to_YUV (ConvertInfo * conv, Matrix4 * m)
{
GstVideoInfo *info = &conv->out_info;
if (GST_VIDEO_INFO_IS_YUV (info)) {
gdouble Kr, Kb;
if (gst_video_color_matrix_get_Kr_Kb (info->colorimetry.matrix, &Kr, &Kb))
matrix_RGB_to_YCbCr (m, Kr, Kb);
GST_DEBUG ("to YUV matrix");
matrix_debug (m);
}
{
const GstVideoFormatInfo *uinfo;
gint offset[4], scale[4], depth[4];
int i;
uinfo = gst_video_format_get_info (GST_VIDEO_INFO_FORMAT (info));
/* bring color components to nominal range */
gst_video_color_range_offsets (info->colorimetry.range, uinfo, offset,
scale);
for (i = 0; i < uinfo->n_components; i++)
depth[i] = (1 << uinfo->depth[i]) - 1;
matrix_scale_components (m, scale[0] / (float) depth[0],
scale[1] / (float) depth[1], scale[2] / (float) depth[2]);
matrix_offset_components (m, offset[0] / (float) depth[0],
offset[1] / (float) depth[1], offset[2] / (float) depth[2]);
GST_DEBUG ("to YUV scale/offset matrix");
matrix_debug (m);
}
}
#if 0
static void
matrix_RGB_to_XYZ (Matrix4 * dst, double Rx, double Ry, double Gx,
double Gy, double Bx, double By, double Wx, double Wy)
{
Matrix4 m, im;
double sx, sy, sz;
double wx, wy, wz;
matrix_set_identity (&m);
m.dm[0][0] = Rx;
m.dm[1][0] = Ry;
m.dm[2][0] = (1.0 - Rx - Ry);
m.dm[0][1] = Gx;
m.dm[1][1] = Gy;
m.dm[2][1] = (1.0 - Gx - Gy);
m.dm[0][2] = Bx;
m.dm[1][2] = By;
m.dm[2][2] = (1.0 - Bx - By);
matrix_invert (&im, &m);
wx = Wx / Wy;
wy = 1.0;
wz = (1.0 - Wx - Wy) / Wy;
sx = im.dm[0][0] * wx + im.dm[0][1] * wy + im.dm[0][2] * wz;
sy = im.dm[1][0] * wx + im.dm[1][1] * wy + im.dm[1][2] * wz;
sz = im.dm[2][0] * wx + im.dm[2][1] * wy + im.dm[2][2] * wz;
m.dm[0][0] *= sx;
m.dm[1][0] *= sx;
m.dm[2][0] *= sx;
m.dm[0][1] *= sy;
m.dm[1][1] *= sy;
m.dm[2][1] *= sy;
m.dm[0][2] *= sz;
m.dm[1][2] *= sz;
m.dm[2][2] *= sz;
matrix_copy (dst, &m);
}
static void
convert_primaries (ConvertInfo * conv)
{
gboolean same_matrix, same_primaries;
Matrix4 p1, p2;
same_matrix =
conv->in_info.colorimetry.matrix == conv->out_info.colorimetry.matrix;
same_primaries =
conv->in_info.colorimetry.primaries ==
conv->out_info.colorimetry.primaries;
GST_DEBUG ("matrix %d -> %d (%d)", conv->in_info.colorimetry.matrix,
conv->out_info.colorimetry.matrix, same_matrix);
GST_DEBUG ("primaries %d -> %d (%d)", conv->in_info.colorimetry.primaries,
conv->out_info.colorimetry.primaries, same_primaries);
matrix_set_identity (&conv->convert_matrix);
if (!same_primaries) {
const GstVideoColorPrimariesInfo *pi;
pi = gst_video_color_primaries_get_info (conv->in_info.colorimetry.
primaries);
matrix_RGB_to_XYZ (&p1, pi->Rx, pi->Ry, pi->Gx, pi->Gy, pi->Bx, pi->By,
pi->Wx, pi->Wy);
GST_DEBUG ("to XYZ matrix");
matrix_debug (&p1);
GST_DEBUG ("current matrix");
matrix_multiply (&conv->convert_matrix, &conv->convert_matrix, &p1);
matrix_debug (&conv->convert_matrix);
pi = gst_video_color_primaries_get_info (conv->out_info.colorimetry.
primaries);
matrix_RGB_to_XYZ (&p2, pi->Rx, pi->Ry, pi->Gx, pi->Gy, pi->Bx, pi->By,
pi->Wx, pi->Wy);
matrix_invert (&p2, &p2);
GST_DEBUG ("to RGB matrix");
matrix_debug (&p2);
matrix_multiply (&conv->convert_matrix, &conv->convert_matrix, &p2);
GST_DEBUG ("current matrix");
matrix_debug (&conv->convert_matrix);
}
}
#endif
static ConvertInfo *
convert_info_new (GstVideoInfo * in_info, GstVideoInfo * out_info)
{
ConvertInfo *conv = g_new0 (ConvertInfo, 1);
matrix_set_identity (&conv->to_RGB_matrix);
matrix_set_identity (&conv->convert_matrix);
matrix_set_identity (&conv->to_YUV_matrix);
memcpy (&conv->in_info, in_info, sizeof (*in_info));
memcpy (&conv->out_info, out_info, sizeof (*out_info));
convert_to_RGB (conv, &conv->to_RGB_matrix);
/* by default videoconvert does not convert primaries
convert_primaries (conv); */
convert_to_YUV (conv, &conv->to_YUV_matrix);
return conv;
}
static void
update_descriptor_set (GstVulkanColorConvert * conv, VkImageView * views,
guint n_views)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
VkDescriptorBufferInfo buffer_info;
VkDescriptorImageInfo image_info[GST_VIDEO_MAX_PLANES];
VkWriteDescriptorSet writes[5];
guint i = 0;
for (; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++) {
/* *INDENT-OFF* */
image_info[i] = (VkDescriptorImageInfo) {
.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
.imageView = views[i],
.sampler = conv->sampler
};
g_assert (i < n_views);
g_assert (i < GST_VIDEO_MAX_PLANES);
writes[i] = (VkWriteDescriptorSet) {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.pNext = NULL,
.dstSet = conv->descriptor_set,
.dstBinding = i,
.dstArrayElement = 0,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.descriptorCount = 1,
.pImageInfo = &image_info[i]
};
/* *INDENT-ON* */
}
if (conv->uniform && conv->current_shader->uniform_size) {
/* *INDENT-OFF* */
buffer_info = (VkDescriptorBufferInfo) {
.buffer = ((GstVulkanBufferMemory *) conv->uniform)->buffer,
.offset = 0,
.range = conv->current_shader->uniform_size
};
writes[i] = (VkWriteDescriptorSet) {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.pNext = NULL,
.dstSet = conv->descriptor_set,
.dstBinding = i,
.dstArrayElement = 0,
.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
.descriptorCount = 1,
.pBufferInfo = &buffer_info
};
/* *INDENT-ON* */
i++;
};
g_assert (i <= G_N_ELEMENTS (writes));
vkUpdateDescriptorSets (render->device->device, i, writes, 0, NULL);
}
static void
video_format_to_reorder (GstVideoFormat v_format, gint * reorder,
gboolean input)
{
switch (v_format) {
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_AYUV:
get_rgb_format_swizzle_order (v_format, reorder);
break;
case GST_VIDEO_FORMAT_UYVY:
reorder[0] = 1;
reorder[1] = 0;
reorder[2] = input ? 3 : 2;
reorder[3] = 0;
break;
case GST_VIDEO_FORMAT_YUY2:
reorder[0] = 0;
reorder[1] = 1;
reorder[2] = 0;
reorder[3] = input ? 3 : 2;
break;
case GST_VIDEO_FORMAT_NV12:
reorder[0] = 0;
reorder[1] = 1;
reorder[2] = 2;
reorder[3] = 0;
break;
default:
g_assert_not_reached ();
break;
}
GST_TRACE ("swizzle: %u, %u, %u, %u", reorder[0], reorder[1], reorder[2],
reorder[3]);
}
static guint
finfo_get_plane_n_components (const GstVideoFormatInfo * finfo, guint plane)
{
guint n_components = 0, i;
switch (finfo->format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xBGR:
/* fixup spaced RGB formats as we treat the space as a normal alpha
* component */
return plane == 0 ? 4 : 0;
default:
break;
}
for (i = 0; i < finfo->n_components; i++) {
if (finfo->plane[i] == plane)
n_components++;
}
return n_components;
}
static void
get_vulkan_format_swizzle_order (GstVideoFormat v_format,
VkFormat vk_format[GST_VIDEO_MAX_PLANES],
gint swizzle[GST_VIDEO_MAX_COMPONENTS])
{
const GstVideoFormatInfo *finfo;
int i, prev_in_i = 0;
finfo = gst_video_format_get_info (v_format);
for (i = 0; i < finfo->n_planes; i++) {
guint plane_components = finfo_get_plane_n_components (finfo, i);
get_vulkan_rgb_format_swizzle_order (vk_format[i],
&swizzle[prev_in_i], plane_components, prev_in_i);
prev_in_i += plane_components;
}
if (v_format == GST_VIDEO_FORMAT_YUY2 || v_format == GST_VIDEO_FORMAT_UYVY) {
/* Fixup these packed YUV formats as we use a two component format for
* a 4-component pixel and access two samples in the shader */
g_assert (swizzle[0] == 0);
g_assert (swizzle[1] == 1);
swizzle[2] = 2;
swizzle[3] = 3;
}
GST_TRACE ("%s: %i, %i, %i, %i", finfo->name, swizzle[0], swizzle[1],
swizzle[2], swizzle[3]);
}
static void
calculate_reorder_indexes (GstVideoFormat in_format,
GstVulkanImageMemory * in_mems[GST_VIDEO_MAX_COMPONENTS],
GstVideoFormat out_format,
GstVulkanImageMemory * out_mems[GST_VIDEO_MAX_COMPONENTS],
int ret_in[GST_VIDEO_MAX_COMPONENTS], int ret_out[GST_VIDEO_MAX_COMPONENTS])
{
const GstVideoFormatInfo *in_finfo, *out_finfo;
VkFormat in_vk_formats[GST_VIDEO_MAX_COMPONENTS];
VkFormat out_vk_formats[GST_VIDEO_MAX_COMPONENTS];
int in_vk_order[GST_VIDEO_MAX_COMPONENTS] = { 0, };
int in_reorder[GST_VIDEO_MAX_COMPONENTS] = { 0, };
int out_vk_order[GST_VIDEO_MAX_COMPONENTS] = { 0, };
int out_reorder[GST_VIDEO_MAX_COMPONENTS] = { 0, };
int tmp[GST_VIDEO_MAX_PLANES] = { 0, };
int i;
in_finfo = gst_video_format_get_info (in_format);
out_finfo = gst_video_format_get_info (out_format);
for (i = 0; i < in_finfo->n_planes; i++)
in_vk_formats[i] = in_mems[i]->create_info.format;
for (i = 0; i < out_finfo->n_planes; i++)
out_vk_formats[i] = out_mems[i]->create_info.format;
get_vulkan_format_swizzle_order (in_format, in_vk_formats, in_vk_order);
video_format_to_reorder (in_format, in_reorder, TRUE);
video_format_to_reorder (out_format, out_reorder, FALSE);
get_vulkan_format_swizzle_order (out_format, out_vk_formats, out_vk_order);
for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
tmp[i] = out_vk_order[out_reorder[i]];
/* find the identity order for RGBA->$format */
GST_TRACE ("pre-invert: %u, %u, %u, %u", tmp[0], tmp[1], tmp[2], tmp[3]);
if (out_format == GST_VIDEO_FORMAT_YUY2
|| out_format == GST_VIDEO_FORMAT_UYVY) {
for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
ret_out[i] = tmp[i];
} else {
swizzle_identity_order (tmp, ret_out);
}
for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
ret_in[i] = in_reorder[in_vk_order[i]];
GST_TRACE ("in reorder: %u, %u, %u, %u", ret_in[0], ret_in[1], ret_in[2],
ret_in[3]);
GST_TRACE ("out reorder: %u, %u, %u, %u", ret_out[0], ret_out[1], ret_out[2],
ret_out[3]);
}
static gboolean
swizzle_rgb_update_command_state (GstVulkanColorConvert * conv,
VkCommandBuffer cmd, shader_info * sinfo,
GstVulkanImageMemory ** in_mems, GstVulkanImageMemory ** out_mems)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
gint reorder[8];
calculate_reorder_indexes (GST_VIDEO_INFO_FORMAT (&render->in_info),
in_mems, GST_VIDEO_INFO_FORMAT (&render->out_info),
out_mems, reorder, &reorder[4]);
vkCmdPushConstants (cmd, render->pipeline_layout,
VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof (reorder),
(const void *) reorder);
update_descriptor_set (conv, &in_mems[0]->view, 1);
vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
render->pipeline_layout, 0, 1, &conv->descriptor_set, 0, NULL);
return TRUE;
}
struct ColorMatrices
{
float to_RGB[16];
float primaries[16];
float to_YUV[16];
};
struct YUVUpdateData
{
int in_reorder[4];
int out_reorder[4];
int tex_size[2];
/* each member is aligned on 4x previous component size boundaries */
int _padding[2];
struct ColorMatrices matrices;
};
static gboolean
yuv_to_rgb_update_command_state (GstVulkanColorConvert * conv,
VkCommandBuffer cmd, shader_info * sinfo, GstVulkanImageMemory ** in_mems,
GstVulkanImageMemory ** out_mems)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
if (!GPOINTER_TO_INT (sinfo->user_data)) {
struct YUVUpdateData data;
ConvertInfo *conv_info;
GstMapInfo map_info;
VkImageView views[GST_VIDEO_MAX_PLANES];
int i;
calculate_reorder_indexes (GST_VIDEO_INFO_FORMAT (&render->in_info),
in_mems, GST_VIDEO_INFO_FORMAT (&render->out_info),
out_mems, data.in_reorder, data.out_reorder);
conv_info = convert_info_new (&render->in_info, &render->out_info);
matrix_to_float (&conv_info->to_RGB_matrix, data.matrices.to_RGB);
matrix_to_float (&conv_info->convert_matrix, data.matrices.primaries);
matrix_to_float (&conv_info->to_YUV_matrix, data.matrices.to_YUV);
/* FIXME: keep this around */
g_free (conv_info);
data.tex_size[0] = GST_VIDEO_INFO_WIDTH (&render->in_info);
data.tex_size[1] = GST_VIDEO_INFO_HEIGHT (&render->in_info);
if (!gst_memory_map (conv->uniform, &map_info, GST_MAP_WRITE)) {
return FALSE;
}
memcpy (map_info.data, &data, sizeof (data));
gst_memory_unmap (conv->uniform, &map_info);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++)
views[i] = in_mems[i]->view;
update_descriptor_set (conv, views,
GST_VIDEO_INFO_N_PLANES (&render->in_info));
sinfo->user_data = GINT_TO_POINTER (1);
}
vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
render->pipeline_layout, 0, 1, &conv->descriptor_set, 0, NULL);
return TRUE;
}
static void
clear_user_data_flag (shader_info * sinfo)
{
sinfo->user_data = NULL;
}
static gboolean gst_vulkan_color_convert_start (GstBaseTransform * bt);
static gboolean gst_vulkan_color_convert_stop (GstBaseTransform * bt);
static GstCaps *gst_vulkan_color_convert_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstFlowReturn gst_vulkan_color_convert_transform (GstBaseTransform * bt,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_vulkan_color_convert_set_caps (GstBaseTransform * bt,
GstCaps * in_caps, GstCaps * out_caps);
static VkAttachmentReference
* gst_vulkan_color_convert_render_pass_attachment_references
(GstVulkanFullScreenRender * render, guint * n_attachments);
static VkAttachmentDescription
* gst_vulkan_color_convert_render_pass_attachment_descriptions
(GstVulkanFullScreenRender * render, guint * n_descriptions);
static VkDescriptorSetLayoutBinding
* gst_vulkan_color_convert_descriptor_set_layout_bindings
(GstVulkanFullScreenRender * render, guint * n_bindings);
static void
gst_vulkan_color_convert_shader_create_info (GstVulkanFullScreenRender *
render);
static VkPushConstantRange
* gst_vulkan_color_convert_push_constant_ranges (GstVulkanFullScreenRender *
render, guint * n_constants);
static GstStaticPadTemplate gst_vulkan_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_VULKAN_IMAGE,
"{ BGRA, RGBA, ABGR, ARGB, BGRx, RGBx, xBGR, xRGB, AYUV, YUY2, UYVY, NV12 }")));
static GstStaticPadTemplate gst_vulkan_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_VULKAN_IMAGE,
"{ BGRA, RGBA, ABGR, ARGB, BGRx, RGBx, xBGR, xRGB, AYUV, YUY2, UYVY, NV12 }")));
enum
{
PROP_0,
};
enum
{
SIGNAL_0,
LAST_SIGNAL
};
/* static guint gst_vulkan_color_convert_signals[LAST_SIGNAL] = { 0 }; */
#define gst_vulkan_color_convert_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanColorConvert, gst_vulkan_color_convert,
GST_TYPE_VULKAN_FULL_SCREEN_RENDER,
GST_DEBUG_CATEGORY_INIT (gst_debug_vulkan_color_convert,
"vulkancolorconvert", 0, "Vulkan Color Convert"));
struct yuv_info
{
GstVideoFormat format;
gchar *from_frag;
gsize from_frag_size;
gchar *to_frag;
gsize to_frag_size;
};
static void
fill_shader_info (void)
{
GstVideoFormat rgbs[] = { GST_VIDEO_FORMAT_RGBA, GST_VIDEO_FORMAT_ARGB,
GST_VIDEO_FORMAT_BGRA, GST_VIDEO_FORMAT_ABGR, GST_VIDEO_FORMAT_RGBx,
GST_VIDEO_FORMAT_xRGB, GST_VIDEO_FORMAT_BGRx, GST_VIDEO_FORMAT_xBGR
};
struct yuv_info yuvs[] = {
{GST_VIDEO_FORMAT_AYUV, ayuv_to_rgb_frag, ayuv_to_rgb_frag_size,
rgb_to_ayuv_frag, rgb_to_ayuv_frag_size},
{GST_VIDEO_FORMAT_YUY2, yuy2_to_rgb_frag, yuy2_to_rgb_frag_size,
rgb_to_yuy2_frag, rgb_to_yuy2_frag_size},
{GST_VIDEO_FORMAT_UYVY, yuy2_to_rgb_frag, yuy2_to_rgb_frag_size,
rgb_to_yuy2_frag, rgb_to_yuy2_frag_size},
{GST_VIDEO_FORMAT_NV12, nv12_to_rgb_frag, nv12_to_rgb_frag_size,
rgb_to_nv12_frag, rgb_to_nv12_frag_size},
};
guint info_i = 0;
guint i, j;
/* standard RGB with alpha conversion all components are copied */
/* *INDENT-OFF* */
for (i = 0; i < G_N_ELEMENTS (rgbs); i++) {
const GstVideoFormatInfo *from_finfo = gst_video_format_get_info (rgbs[i]);
for (j = 0; j < G_N_ELEMENTS (rgbs); j++) {
const GstVideoFormatInfo *to_finfo = gst_video_format_get_info (rgbs[j]);
gboolean clobber_alpha = FALSE;
GST_TRACE ("Initializing info for %s -> %s", from_finfo->name, to_finfo->name);
/* copying to an RGBx variant means we can store whatever we like in the 'x'
* component we choose to copy the alpha component like a standard RGBA->RGBA
* swizzle.
* Copying from an rgbx to a rgba format means we need to reset the
* alpha value */
clobber_alpha = !GST_VIDEO_FORMAT_INFO_HAS_ALPHA (from_finfo) && GST_VIDEO_FORMAT_INFO_HAS_ALPHA (to_finfo);
shader_infos[info_i++] = (shader_info) {
.from = rgbs[i],
.to = rgbs[j],
.cmd_state_update = swizzle_rgb_update_command_state,
.frag_code = clobber_alpha ? swizzle_and_clobber_alpha_frag : swizzle_frag,
.frag_size = clobber_alpha ? swizzle_and_clobber_alpha_frag_size : swizzle_frag_size,
.push_constant_ranges = {
{
.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT,
.offset = 0,
.size = 8 * sizeof(gint32),
}, PUSH_CONSTANT_RANGE_NULL_INIT,
},
.notify = (GDestroyNotify) clear_user_data_flag,
.user_data = NULL,
};
}
for (j = 0; j < G_N_ELEMENTS (yuvs); j++) {
const GstVideoFormatInfo *to_finfo = gst_video_format_get_info (yuvs[j].format);
GST_TRACE ("Initializing info for %s -> %s", from_finfo->name, to_finfo->name);
shader_infos[info_i++] = (shader_info) {
.from = rgbs[i],
.to = yuvs[j].format,
.cmd_state_update = yuv_to_rgb_update_command_state,
.frag_code = yuvs[j].to_frag,
.frag_size = yuvs[j].to_frag_size,
.push_constant_ranges = { PUSH_CONSTANT_RANGE_NULL_INIT },
.uniform_size = sizeof(struct YUVUpdateData),
.notify = (GDestroyNotify) clear_user_data_flag,
.user_data = NULL,
};
GST_TRACE ("Initializing info for %s -> %s", to_finfo->name, from_finfo->name);
shader_infos[info_i++] = (shader_info) {
.from = yuvs[j].format,
.to = rgbs[i],
.cmd_state_update = yuv_to_rgb_update_command_state,
.frag_code = yuvs[j].from_frag,
.frag_size = yuvs[j].from_frag_size,
.push_constant_ranges = { PUSH_CONSTANT_RANGE_NULL_INIT },
.uniform_size = sizeof(struct YUVUpdateData),
.notify = (GDestroyNotify) clear_user_data_flag,
.user_data = NULL,
};
}
}
/* *INDENT-ON* */
GST_TRACE ("initialized %u formats", info_i);
g_assert (info_i == N_SHADER_INFO);
}
static void
gst_vulkan_color_convert_class_init (GstVulkanColorConvertClass * klass)
{
GstElementClass *gstelement_class;
GstBaseTransformClass *gstbasetransform_class;
GstVulkanFullScreenRenderClass *fullscreenrender_class;
gstelement_class = (GstElementClass *) klass;
gstbasetransform_class = (GstBaseTransformClass *) klass;
fullscreenrender_class = (GstVulkanFullScreenRenderClass *) klass;
gst_element_class_set_metadata (gstelement_class, "Vulkan Uploader",
"Filter/Video/Convert", "A Vulkan Color Convert",
"Matthew Waters <matthew@centricular.com>");
gst_element_class_add_static_pad_template (gstelement_class,
&gst_vulkan_sink_template);
gst_element_class_add_static_pad_template (gstelement_class,
&gst_vulkan_src_template);
gstbasetransform_class->start =
GST_DEBUG_FUNCPTR (gst_vulkan_color_convert_start);
gstbasetransform_class->stop =
GST_DEBUG_FUNCPTR (gst_vulkan_color_convert_stop);
gstbasetransform_class->transform_caps =
gst_vulkan_color_convert_transform_caps;
gstbasetransform_class->set_caps = gst_vulkan_color_convert_set_caps;
gstbasetransform_class->transform = gst_vulkan_color_convert_transform;
fullscreenrender_class->render_pass_attachment_references =
gst_vulkan_color_convert_render_pass_attachment_references;
fullscreenrender_class->render_pass_attachment_descriptions =
gst_vulkan_color_convert_render_pass_attachment_descriptions;
fullscreenrender_class->descriptor_set_layout_bindings =
gst_vulkan_color_convert_descriptor_set_layout_bindings;
fullscreenrender_class->shader_create_info =
gst_vulkan_color_convert_shader_create_info;
fullscreenrender_class->push_constant_ranges =
gst_vulkan_color_convert_push_constant_ranges;
fill_shader_info ();
}
static void
gst_vulkan_color_convert_init (GstVulkanColorConvert * conv)
{
}
static void
_init_value_string_list (GValue * list, ...)
{
GValue item = G_VALUE_INIT;
gchar *str;
va_list args;
g_value_init (list, GST_TYPE_LIST);
va_start (args, list);
while ((str = va_arg (args, gchar *))) {
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, str);
gst_value_list_append_value (list, &item);
g_value_unset (&item);
}
va_end (args);
}
static void
_append_value_string_list (GValue * list, ...)
{
GValue item = G_VALUE_INIT;
gchar *str;
va_list args;
va_start (args, list);
while ((str = va_arg (args, gchar *))) {
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, str);
gst_value_list_append_value (list, &item);
g_value_unset (&item);
}
va_end (args);
}
static void
_init_supported_formats (GstVulkanDevice * device, gboolean output,
GValue * supported_formats)
{
/* Assume if device == NULL that we don't have a Vulkan device and can
* do the conversion */
/* Always supported input and output formats */
_init_value_string_list (supported_formats, "RGBA", "RGB", "RGBx", "BGR",
"BGRx", "BGRA", "xRGB", "xBGR", "ARGB", "ABGR", NULL);
_append_value_string_list (supported_formats, "AYUV", "YUY2", "UYVY", "NV12",
NULL);
}
/* copies the given caps */
static GstCaps *
gst_vulkan_color_convert_transform_format_info (GstVulkanDevice * device,
gboolean output, GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GValue supported_formats = G_VALUE_INIT;
GValue rgb_formats = G_VALUE_INIT;
GValue supported_rgb_formats = G_VALUE_INIT;
/* There are effectively two modes here with the RGB/YUV transition:
* 1. There is a RGB-like format as input and we can transform to YUV or,
* 2. No RGB-like format as input so we can only transform to RGB-like formats
*
* We also filter down the list of formats depending on what the OpenGL
* device supports (when provided).
*/
_init_value_string_list (&rgb_formats, "RGBA", "ARGB", "BGRA", "ABGR", "RGBx",
"xRGB", "BGRx", "xBGR", "RGB", "BGR", "ARGB64", NULL);
_init_supported_formats (device, output, &supported_formats);
gst_value_intersect (&supported_rgb_formats, &rgb_formats,
&supported_formats);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
const GValue *format;
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
format = gst_structure_get_value (st, "format");
st = gst_structure_copy (st);
if (GST_VALUE_HOLDS_LIST (format)) {
gboolean have_rgb_formats = FALSE;
GValue passthrough_formats = G_VALUE_INIT;
gint j, len;
g_value_init (&passthrough_formats, GST_TYPE_LIST);
len = gst_value_list_get_size (format);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
const gchar *format_str = g_value_get_string (val);
GstVideoFormat v_format = gst_video_format_from_string (format_str);
const GstVideoFormatInfo *t_info =
gst_video_format_get_info (v_format);
if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) & (GST_VIDEO_FORMAT_FLAG_YUV
| GST_VIDEO_FORMAT_FLAG_GRAY)) {
gst_value_list_append_value (&passthrough_formats, val);
} else if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) &
GST_VIDEO_FORMAT_FLAG_RGB) {
have_rgb_formats = TRUE;
break;
}
}
}
if (have_rgb_formats) {
gst_structure_set_value (st, "format", &supported_formats);
} else {
/* add passthrough structure, then the rgb conversion structure */
gst_structure_set_value (st, "format", &passthrough_formats);
gst_caps_append_structure_full (res, gst_structure_copy (st),
gst_caps_features_copy (f));
gst_structure_set_value (st, "format", &supported_rgb_formats);
}
g_value_unset (&passthrough_formats);
} else if (G_VALUE_HOLDS_STRING (format)) {
const gchar *format_str = g_value_get_string (format);
GstVideoFormat v_format = gst_video_format_from_string (format_str);
const GstVideoFormatInfo *t_info = gst_video_format_get_info (v_format);
if (GST_VIDEO_FORMAT_INFO_FLAGS (t_info) & (GST_VIDEO_FORMAT_FLAG_YUV |
GST_VIDEO_FORMAT_FLAG_GRAY)) {
/* add passthrough structure, then the rgb conversion structure */
gst_structure_set_value (st, "format", format);
gst_caps_append_structure_full (res, gst_structure_copy (st),
gst_caps_features_copy (f));
gst_structure_set_value (st, "format", &supported_rgb_formats);
} else { /* RGB */
gst_structure_set_value (st, "format", &supported_formats);
}
}
gst_structure_remove_fields (st, "colorimetry", "chroma-site", NULL);
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
g_value_unset (&supported_formats);
g_value_unset (&rgb_formats);
g_value_unset (&supported_rgb_formats);
return res;
}
static GstCaps *
gst_vulkan_color_convert_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
caps = gst_vulkan_color_convert_transform_format_info (render->device,
direction == GST_PAD_SRC, caps);
if (filter) {
GstCaps *tmp;
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
return caps;
}
static void
destroy_shader_create_info (GstVulkanFullScreenRender * render, gpointer data)
{
VkPipelineShaderStageCreateInfo *info = data;
int i;
for (i = 0; i < render->n_shader_stages; i++) {
vkDestroyShaderModule (render->device->device, info[i].module, NULL);
}
g_free (info);
}
static void
gst_vulkan_color_convert_shader_create_info (GstVulkanFullScreenRender * render)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (render);
VkShaderModule vert_module, frag_module;
vert_module =
_vk_create_shader (render->device, identity_vert, identity_vert_size,
NULL);
frag_module =
_vk_create_shader (render->device, conv->current_shader->frag_code,
conv->current_shader->frag_size, NULL);
render->n_shader_stages = 2;
render->shader_create_info =
g_new0 (VkPipelineShaderStageCreateInfo, render->n_shader_stages);
render->destroy_shader_create_info = destroy_shader_create_info;
/* *INDENT-OFF* */
render->shader_create_info[0] = (VkPipelineShaderStageCreateInfo) {
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = NULL,
.stage = VK_SHADER_STAGE_VERTEX_BIT,
.module = vert_module,
.pName = "main"
};
render->shader_create_info[1] = (VkPipelineShaderStageCreateInfo) {
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = NULL,
.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
.module = frag_module,
.pName = "main"
};
/* *INDENT-ON* */
}
static VkPushConstantRange *
gst_vulkan_color_convert_push_constant_ranges (GstVulkanFullScreenRender *
render, guint * n_constants)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (render);
VkPushConstantRange *ranges;
int i;
for (i = 0; i < G_N_ELEMENTS (conv->current_shader->push_constant_ranges);
i++) {
if (conv->current_shader->push_constant_ranges[i].stageFlags == 0) {
break;
}
}
*n_constants = i;
GST_DEBUG_OBJECT (conv, "%s->%s has %u push constants",
gst_video_format_to_string (conv->current_shader->from),
gst_video_format_to_string (conv->current_shader->to), *n_constants);
if (*n_constants <= 0)
ranges = NULL;
else
ranges =
g_memdup (conv->current_shader->push_constant_ranges,
sizeof (VkPushConstantRange) * *n_constants);
return ranges;
}
static VkDescriptorSetLayoutBinding
* gst_vulkan_color_convert_descriptor_set_layout_bindings
(GstVulkanFullScreenRender * render, guint * n_bindings)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (render);
VkDescriptorSetLayoutBinding *bindings;
guint i;
*n_bindings = 0;
*n_bindings += GST_VIDEO_INFO_N_PLANES (&render->in_info);
if (conv->current_shader->uniform_size)
*n_bindings += 1;
bindings = g_new0 (VkDescriptorSetLayoutBinding, *n_bindings);
GST_DEBUG_OBJECT (conv, "%s->%s has %u descriptor set layout bindings",
gst_video_format_to_string (conv->current_shader->from),
gst_video_format_to_string (conv->current_shader->to), *n_bindings);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++) {
/* *INDENT-OFF* */
bindings[i] = (VkDescriptorSetLayoutBinding) {
.binding = i,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.pImmutableSamplers = NULL,
.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT
};
/* *INDENT-ON* */
}
if (conv->current_shader->uniform_size) {
/* *INDENT-OFF* */
bindings[i] = (VkDescriptorSetLayoutBinding) {
.binding = i,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
.pImmutableSamplers = NULL,
.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT
};
/* *INDENT-ON* */
i++;
}
g_assert (i == *n_bindings);
return bindings;
}
static VkAttachmentReference
* gst_vulkan_color_convert_render_pass_attachment_references
(GstVulkanFullScreenRender * render, guint * n_attachments)
{
VkAttachmentReference *attachments;
int i;
*n_attachments = GST_VIDEO_INFO_N_PLANES (&render->out_info);
attachments = g_new0 (VkAttachmentReference, *n_attachments);
for (i = 0; i < *n_attachments; i++) {
/* *INDENT-OFF* */
attachments[i] = (VkAttachmentReference) {
.attachment = i,
.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
};
/* *INDENT-ON* */
}
return attachments;
}
static VkAttachmentDescription
* gst_vulkan_color_convert_render_pass_attachment_descriptions
(GstVulkanFullScreenRender * render, guint * n_descriptions)
{
VkAttachmentDescription *color_attachments;
int i;
*n_descriptions = GST_VIDEO_INFO_N_PLANES (&render->out_info);
color_attachments = g_new0 (VkAttachmentDescription, *n_descriptions);
for (i = 0; i < *n_descriptions; i++) {
/* *INDENT-OFF* */
color_attachments[i] = (VkAttachmentDescription) {
.format = gst_vulkan_format_from_video_format (GST_VIDEO_INFO_FORMAT (&render->out_info), i),
.samples = VK_SAMPLE_COUNT_1_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
/* FIXME: share this between elements to avoid pipeline barriers */
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
};
/* *INDENT-ON* */
}
return color_attachments;
}
static VkSampler
_create_sampler (GstVulkanColorConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
/* *INDENT-OFF* */
VkSamplerCreateInfo samplerInfo = {
.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
.magFilter = VK_FILTER_LINEAR,
.minFilter = VK_FILTER_LINEAR,
.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
.anisotropyEnable = VK_FALSE,
.maxAnisotropy = 1,
.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK,
.unnormalizedCoordinates = VK_FALSE,
.compareEnable = VK_FALSE,
.compareOp = VK_COMPARE_OP_ALWAYS,
.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR,
.mipLodBias = 0.0f,
.minLod = 0.0f,
.maxLod = 0.0f
};
/* *INDENT-ON* */
GError *error = NULL;
VkSampler sampler;
VkResult err;
err = vkCreateSampler (render->device->device, &samplerInfo, NULL, &sampler);
if (gst_vulkan_error_to_g_error (err, &error, "vkCreateSampler") < 0) {
GST_ERROR_OBJECT (conv, "Failed to create sampler: %s", error->message);
g_clear_error (&error);
return NULL;
}
return sampler;
}
static gboolean
gst_vulkan_color_convert_start (GstBaseTransform * bt)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (bt);
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->start (bt))
return FALSE;
if (!(conv->sampler = _create_sampler (conv)))
return FALSE;
return TRUE;
}
static VkDescriptorPool
_create_descriptor_pool (GstVulkanColorConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
/* *INDENT-OFF* */
VkDescriptorPoolSize pool_sizes[] = {
{
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.descriptorCount = GST_VIDEO_INFO_N_PLANES (&render->in_info),
},
{
.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
.descriptorCount = 1
},
};
VkDescriptorPoolCreateInfo pool_info = {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
.pNext = NULL,
.poolSizeCount = G_N_ELEMENTS (pool_sizes),
.pPoolSizes = pool_sizes,
.maxSets = 1
};
/* *INDENT-ON* */
VkDescriptorPool pool;
GError *error = NULL;
VkResult err;
err =
vkCreateDescriptorPool (render->device->device, &pool_info, NULL, &pool);
if (gst_vulkan_error_to_g_error (err, &error, "vkCreateDescriptorPool") < 0) {
GST_ERROR_OBJECT (render, "Failed to create descriptor pool: %s",
error->message);
g_clear_error (&error);
return NULL;
}
return pool;
}
static VkDescriptorSet
_create_descriptor_set (GstVulkanColorConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
/* *INDENT-OFF* */
VkDescriptorSetAllocateInfo alloc_info = {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
.pNext = NULL,
.descriptorPool = conv->descriptor_pool,
.descriptorSetCount = 1,
.pSetLayouts = &render->descriptor_set_layout
};
/* *INDENT-ON* */
VkDescriptorSet descriptor;
GError *error = NULL;
VkResult err;
err =
vkAllocateDescriptorSets (render->device->device, &alloc_info,
&descriptor);
if (gst_vulkan_error_to_g_error (err, &error, "vkAllocateDescriptorSets") < 0) {
GST_ERROR_OBJECT (conv, "Failed to allocate descriptor: %s",
error->message);
g_clear_error (&error);
return NULL;
}
return descriptor;
}
static gboolean
_create_uniform_buffer (GstVulkanColorConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
if (conv->current_shader->uniform_size) {
conv->uniform =
gst_vulkan_buffer_memory_alloc (render->device, VK_FORMAT_R8_UNORM,
conv->current_shader->uniform_size,
VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
}
return TRUE;
}
static gboolean
gst_vulkan_color_convert_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
GstCaps * out_caps)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (bt);
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
GstVideoInfo in_info, out_info;
int i;
conv->current_shader = NULL;
if (!gst_video_info_from_caps (&in_info, in_caps))
return FALSE;
if (!gst_video_info_from_caps (&out_info, out_caps))
return FALSE;
if (conv->current_shader) {
conv->current_shader->notify (conv->current_shader);
conv->current_shader = NULL;
}
for (i = 0; i < G_N_ELEMENTS (shader_infos); i++) {
if (shader_infos[i].from != GST_VIDEO_INFO_FORMAT (&in_info))
continue;
if (shader_infos[i].to != GST_VIDEO_INFO_FORMAT (&out_info))
continue;
GST_INFO_OBJECT (conv,
"Found compatible conversion information from %s to %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&in_info)),
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&out_info)));
conv->current_shader = &shader_infos[i];
}
if (!conv->current_shader) {
GST_ERROR_OBJECT (conv, "Could not find a conversion info for the "
"requested formats");
return FALSE;
}
if (render->last_fence) {
if (conv->descriptor_pool)
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_free_descriptor_pool (gst_vulkan_fence_ref
(render->last_fence), conv->descriptor_pool));
conv->descriptor_set = NULL;
conv->descriptor_pool = NULL;
if (conv->uniform)
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_mini_object_unref (gst_vulkan_fence_ref
(render->last_fence), (GstMiniObject *) conv->uniform));
conv->uniform = NULL;
} else {
if (conv->descriptor_pool)
vkDestroyDescriptorPool (render->device->device,
conv->descriptor_pool, NULL);
conv->descriptor_set = NULL;
conv->descriptor_pool = NULL;
if (conv->uniform)
gst_memory_unref (conv->uniform);
conv->uniform = NULL;
}
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->set_caps (bt, in_caps,
out_caps))
return FALSE;
if (!(conv->descriptor_pool = _create_descriptor_pool (conv)))
return FALSE;
if (!(conv->descriptor_set = _create_descriptor_set (conv)))
return FALSE;
if (!_create_uniform_buffer (conv))
return FALSE;
return TRUE;
}
static gboolean
gst_vulkan_color_convert_stop (GstBaseTransform * bt)
{
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (bt);
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
conv->current_shader = NULL;
if (render->device) {
if (render->last_fence) {
if (conv->descriptor_pool)
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_free_descriptor_pool (gst_vulkan_fence_ref
(render->last_fence), conv->descriptor_pool));
conv->descriptor_set = NULL;
conv->descriptor_pool = NULL;
if (conv->sampler)
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_free_sampler (gst_vulkan_fence_ref
(render->last_fence), conv->sampler));
conv->sampler = NULL;
if (conv->uniform)
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_mini_object_unref (gst_vulkan_fence_ref
(render->last_fence), (GstMiniObject *) conv->uniform));
conv->uniform = NULL;
} else {
if (conv->descriptor_pool)
vkDestroyDescriptorPool (render->device->device,
conv->descriptor_pool, NULL);
conv->descriptor_set = NULL;
conv->descriptor_pool = NULL;
if (conv->sampler)
vkDestroySampler (render->device->device, conv->sampler, NULL);
conv->sampler = NULL;
if (conv->uniform)
gst_memory_unref (conv->uniform);
conv->uniform = NULL;
}
}
if (conv->cmd_pool)
gst_object_unref (conv->cmd_pool);
conv->cmd_pool = NULL;
return GST_BASE_TRANSFORM_CLASS (parent_class)->stop (bt);
}
static VkFramebuffer
_create_framebuffer (GstVulkanColorConvert * conv, guint n_views,
VkImageView * views)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
/* *INDENT-OFF* */
VkFramebufferCreateInfo framebuffer_info = {
.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
.pNext = NULL,
.renderPass = render->render_pass,
.attachmentCount = n_views,
.pAttachments = views,
.width = GST_VIDEO_INFO_WIDTH (&render->out_info),
.height = GST_VIDEO_INFO_HEIGHT (&render->out_info),
.layers = 1
};
/* *INDENT-ON* */
VkFramebuffer framebuffer;
GError *error = NULL;
VkResult err;
err =
vkCreateFramebuffer (render->device->device, &framebuffer_info, NULL,
&framebuffer);
if (gst_vulkan_error_to_g_error (err, &error, "vkCreateFramebuffer") < 0) {
GST_ERROR_OBJECT (render, "Failed to create framebuffer: %s",
error->message);
g_clear_error (&error);
return NULL;
}
return framebuffer;
}
static GstFlowReturn
gst_vulkan_color_convert_transform (GstBaseTransform * bt, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
GstVulkanColorConvert *conv = GST_VULKAN_COLOR_CONVERT (bt);
GstVulkanImageMemory *in_img_mems[GST_VIDEO_MAX_PLANES] = { NULL, };
GstVulkanImageMemory *render_img_mems[GST_VIDEO_MAX_PLANES] = { NULL, };
GstVulkanImageMemory *out_img_mems[4] = { NULL, };
GstVulkanFence *fence = NULL;
VkFramebuffer framebuffer;
VkCommandBuffer cmd;
GError *error = NULL;
VkResult err;
int i;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++) {
GstMemory *mem = gst_buffer_peek_memory (inbuf, i);
if (!gst_is_vulkan_image_memory (mem)) {
g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
"Input memory must be a GstVulkanImageMemory");
goto error;
}
in_img_mems[i] = (GstVulkanImageMemory *) mem;
}
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->out_info); i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
if (!gst_is_vulkan_image_memory (mem)) {
g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
"Output memory must be a GstVulkanImageMemory");
goto error;
}
out_img_mems[i] = (GstVulkanImageMemory *) mem;
}
if (!conv->cmd_pool) {
if (!(conv->cmd_pool =
gst_vulkan_queue_create_command_pool (render->queue, &error)))
goto error;
}
if (!(cmd = gst_vulkan_command_pool_create (conv->cmd_pool, &error)))
goto error;
fence = gst_vulkan_fence_new (render->device, 0, &error);
if (!fence)
goto error;
{
VkCommandBufferBeginInfo cmd_buf_info = { 0, };
/* *INDENT-OFF* */
cmd_buf_info = (VkCommandBufferBeginInfo) {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.pNext = NULL,
.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
.pInheritanceInfo = NULL
};
/* *INDENT-ON* */
err = vkBeginCommandBuffer (cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, &error, "vkBeginCommandBuffer") < 0)
goto error;
}
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++) {
/* *INDENT-OFF* */
VkImageMemoryBarrier in_image_memory_barrier = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = in_img_mems[i]->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_INPUT_ATTACHMENT_READ_BIT,
.oldLayout = in_img_mems[i]->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = in_img_mems[i]->image,
.subresourceRange = in_img_mems[i]->barrier.subresource_range
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd, in_img_mems[i]->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1,
&in_image_memory_barrier);
in_img_mems[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
in_img_mems[i]->barrier.parent.access_flags =
in_image_memory_barrier.dstAccessMask;
in_img_mems[i]->barrier.image_layout = in_image_memory_barrier.newLayout;
}
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->out_info); i++) {
VkImageMemoryBarrier render_image_memory_barrier;
if (GST_VIDEO_INFO_WIDTH (&render->out_info) ==
GST_VIDEO_INFO_COMP_WIDTH (&render->out_info, i)) {
render_img_mems[i] = out_img_mems[i];
} else {
/* we need a scratch buffer because framebuffers can only output to
* attachments of at least the same size which means no sub-sampled
* rendering */
GstVideoFormat v_format = GST_VIDEO_INFO_FORMAT (&render->out_info);
VkImageTiling tiling = VK_IMAGE_TILING_OPTIMAL;
VkFormat vk_format;
GstMemory *mem;
vk_format = gst_vulkan_format_from_video_format (v_format, i);
mem = gst_vulkan_image_memory_alloc (render->device,
vk_format, GST_VIDEO_INFO_WIDTH (&render->out_info),
GST_VIDEO_INFO_HEIGHT (&render->out_info), tiling,
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
render_img_mems[i] = (GstVulkanImageMemory *) mem;
}
/* *INDENT-OFF* */
render_image_memory_barrier = (VkImageMemoryBarrier) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = render_img_mems[i]->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
.oldLayout = render_img_mems[i]->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = render_img_mems[i]->image,
.subresourceRange = render_img_mems[i]->barrier.subresource_range
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd,
render_img_mems[i]->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, NULL, 0, NULL, 1,
&render_image_memory_barrier);
render_img_mems[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
render_img_mems[i]->barrier.parent.access_flags =
render_image_memory_barrier.dstAccessMask;
render_img_mems[i]->barrier.image_layout =
render_image_memory_barrier.newLayout;
}
{
VkImageView attachments[4] = { 0, };
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->out_info); i++) {
attachments[i] = render_img_mems[i]->view;
}
if (!(framebuffer = _create_framebuffer (conv,
GST_VIDEO_INFO_N_PLANES (&render->out_info), attachments))) {
g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
"Failed to create framebuffer");
goto error;
}
}
conv->current_shader->cmd_state_update (conv, cmd, conv->current_shader,
in_img_mems, render_img_mems);
if (!gst_vulkan_full_screen_render_fill_command_buffer (render, cmd,
framebuffer))
return GST_FLOW_ERROR;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->out_info); i++) {
if (render_img_mems[i] != out_img_mems[i]) {
VkImageMemoryBarrier out_image_memory_barrier;
VkImageMemoryBarrier render_image_memory_barrier;
VkImageBlit blit;
/* *INDENT-OFF* */
render_image_memory_barrier = (VkImageMemoryBarrier) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = render_img_mems[i]->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
.oldLayout = render_img_mems[i]->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = render_img_mems[i]->image,
.subresourceRange = render_img_mems[i]->barrier.subresource_range
};
out_image_memory_barrier = (VkImageMemoryBarrier) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = out_img_mems[i]->barrier.parent.access_flags,
.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.oldLayout = out_img_mems[i]->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = out_img_mems[i]->image,
.subresourceRange = out_img_mems[i]->barrier.subresource_range
};
blit = (VkImageBlit) {
.srcSubresource = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.mipLevel = 0,
.baseArrayLayer = 0,
.layerCount = 1,
},
.srcOffsets = {
{0, 0, 0},
{GST_VIDEO_INFO_COMP_WIDTH (&render->out_info, i), GST_VIDEO_INFO_COMP_HEIGHT (&render->out_info, i), 1},
},
.dstSubresource = {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.mipLevel = 0,
.baseArrayLayer = 0,
.layerCount = 1,
},
.dstOffsets = {
{0, 0, 0},
{GST_VIDEO_INFO_COMP_WIDTH (&render->out_info, i), GST_VIDEO_INFO_COMP_HEIGHT (&render->out_info, i), 1},
},
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd,
render_img_mems[i]->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&render_image_memory_barrier);
render_img_mems[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_TRANSFER_BIT;
render_img_mems[i]->barrier.parent.access_flags =
render_image_memory_barrier.dstAccessMask;
render_img_mems[i]->barrier.image_layout =
render_image_memory_barrier.newLayout;
vkCmdPipelineBarrier (cmd,
out_img_mems[i]->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&out_image_memory_barrier);
out_img_mems[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_TRANSFER_BIT;
out_img_mems[i]->barrier.parent.access_flags =
out_image_memory_barrier.dstAccessMask;
out_img_mems[i]->barrier.image_layout =
out_image_memory_barrier.newLayout;
/* XXX: This is mostly right for a downsampling pass however if
* anything is more complicated, then we will need a new render pass */
vkCmdBlitImage (cmd, render_img_mems[i]->image,
render_img_mems[i]->barrier.image_layout, out_img_mems[i]->image,
out_img_mems[i]->barrier.image_layout, 1, &blit, VK_FILTER_LINEAR);
/* XXX: try to reuse this image later */
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_mini_object_unref (gst_vulkan_fence_ref (fence),
(GstMiniObject *) render_img_mems[i]));
}
}
err = vkEndCommandBuffer (cmd);
if (gst_vulkan_error_to_g_error (err, &error, "vkEndCommandBuffer") < 0)
goto error;
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_free_framebuffer (gst_vulkan_fence_ref (fence),
framebuffer));
gst_vulkan_trash_list_add (render->trash_list,
gst_vulkan_trash_new_free_command_buffer (gst_vulkan_fence_ref (fence),
conv->cmd_pool, cmd));
if (!gst_vulkan_full_screen_render_submit (render, cmd, fence))
return GST_FLOW_ERROR;
return GST_FLOW_OK;
error:
GST_ELEMENT_ERROR (bt, LIBRARY, FAILED, ("%s", error->message), (NULL));
g_clear_error (&error);
return GST_FLOW_ERROR;
}
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