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gstreamer/ext/vulkan/vkviewconvert.c
Matthew Waters 014642e188 vulkan: add view converter element
2019-07-05 15:04:28 +10:00

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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 "vkviewconvert.h"
#include "vkshader.h"
#include "shaders/identity.vert.h"
#include "shaders/view_convert.frag.h"
#include "gstvulkan-plugins-enumtypes.h"
GST_DEBUG_CATEGORY (gst_debug_vulkan_view_convert);
#define GST_CAT_DEFAULT gst_debug_vulkan_view_convert
/* *INDENT-OFF* */
/* These match the order and number of DOWNMIX_ANAGLYPH_* modes */
static float downmix_matrices[][2][12] = {
{ /* Green-Magenta Dubois */
{-0.062f, 0.284f, -0.015f, 0.0, -0.158f, 0.668f, -0.027f, 0.0, -0.039f, 0.143f, 0.021f, 0.0},
{0.529f, -0.016f, 0.009f, 0.0, 0.705f, -0.015f, 0.075f, 0.0, 0.024f, -0.065f, 0.937f, 0.0}
},
{ /* Red-Cyan Dubois */
/* Source of this matrix: http://www.site.uottawa.ca/~edubois/anaglyph/LeastSquaresHowToPhotoshop.pdf */
{0.437f, -0.062f, -0.048f, 0.0, 0.449f, -0.062f, -0.050f, 0.0, 0.164f, -0.024f, -0.017f},
{-0.011f, 0.377f, -0.026f, 0.0, -0.032f, 0.761f, -0.093f, 0.0, -0.007f, 0.009f, 1.234f}
},
{ /* Amber-blue Dubois */
{1.062f, -0.026f, -0.038f, 0.0, -0.205f, 0.908f, -0.173f, 0.0, 0.299f, 0.068f, 0.022f},
{-0.016f, 0.006f, 0.094f, 0.0, -0.123f, 0.062f, 0.185f, 0.0, -0.017f, -0.017f, 0.911f}
}
};
/* *INDENT-ON* */
struct ViewUpdate
{
int in_reorder_idx[4];
int out_reorder_idx[4];
float tex_offset[2][2];
float tex_scale[2][2];
int tex_size[2];
int output_type;
int _padding;
float downmix[2][12];
};
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;
}
}
}
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],
in_reorder[GST_VIDEO_MAX_COMPONENTS];
int out_vk_order[GST_VIDEO_MAX_COMPONENTS],
out_reorder[GST_VIDEO_MAX_COMPONENTS];
int tmp[GST_VIDEO_MAX_PLANES];
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 void
update_descriptor_set (GstVulkanViewConvert * conv, VkImageView * views,
guint n_views)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
VkDescriptorBufferInfo buffer_info;
VkDescriptorImageInfo image_info[2 * GST_VIDEO_MAX_PLANES];
VkWriteDescriptorSet writes[10];
guint i = 0;
for (; i < GST_VIDEO_INFO_N_PLANES (&render->in_info) * 2; 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* */
}
/* *INDENT-OFF* */
buffer_info = (VkDescriptorBufferInfo) {
.buffer = ((GstVulkanBufferMemory *) conv->uniform)->buffer,
.offset = 0,
.range = sizeof (struct ViewUpdate),
};
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 gboolean
_update_uniform (GstVulkanViewConvert * conv, GstVulkanImageMemory ** in_mems,
GstVulkanImageMemory ** out_mems, VkImageView views[GST_VIDEO_MAX_PLANES])
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
GstVideoMultiviewMode in_mode, out_mode;
GstVideoMultiviewFlags in_flags, out_flags;
struct ViewUpdate data;
GstMapInfo map_info;
guint l_index, r_index;
gboolean mono_input = FALSE;
calculate_reorder_indexes (GST_VIDEO_INFO_FORMAT (&render->in_info),
in_mems, GST_VIDEO_INFO_FORMAT (&render->out_info),
out_mems, data.in_reorder_idx, data.out_reorder_idx);
data.tex_scale[0][0] = data.tex_scale[0][1] = 1.;
data.tex_scale[1][0] = data.tex_scale[1][1] = 1.;
data.tex_offset[0][0] = data.tex_offset[0][1] = 0.;
data.tex_offset[1][0] = data.tex_offset[1][1] = 0.;
in_mode = conv->input_mode_override;
in_flags = conv->input_flags_override;
if (in_mode == GST_VIDEO_MULTIVIEW_MODE_NONE) {
in_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&render->in_info);
in_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&render->in_info);
}
/* Configured output mode already takes any override
* into account */
out_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&render->out_info);
out_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&render->out_info);
if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST) ==
(out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST)) {
l_index = 0;
r_index = 1;
} else {
VkImageView scratch_view;
GST_LOG_OBJECT (conv, "Switching left/right views");
l_index = 1;
r_index = 0;
scratch_view = views[0];
views[0] = views[1];
views[1] = scratch_view;
}
if (in_mode < GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE) { /* unknown/mono/left/right single image */
} else if (in_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE ||
in_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
/* Side-by-side input */
data.tex_offset[r_index][0] += 0.5 * data.tex_scale[r_index][0];
data.tex_scale[0][0] *= 0.5f; /* Half horizontal scale */
data.tex_scale[1][0] *= 0.5f;
} else if (in_mode == GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM) { /* top-bottom */
data.tex_offset[r_index][1] += 0.5 * data.tex_scale[r_index][1];
data.tex_scale[0][1] *= 0.5f; /* Half vertical scale */
data.tex_scale[1][1] *= 0.5f;
}
/* Flipped is vertical, flopped is horizontal.
* Adjust and offset per-view scaling. This needs to be done
* after the input scaling already splits the views, before
* adding any output scaling. */
if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED) !=
(out_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED)) {
data.tex_offset[l_index][1] += data.tex_scale[l_index][1];
data.tex_scale[l_index][1] *= -1.0;
}
if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED) !=
(out_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED)) {
data.tex_offset[l_index][0] += data.tex_scale[l_index][0];
data.tex_scale[l_index][0] *= -1.0;
}
if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED) !=
(out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED)) {
data.tex_offset[r_index][1] += data.tex_scale[r_index][1];
data.tex_scale[r_index][1] *= -1.0;
}
if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED) !=
(out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED)) {
data.tex_offset[r_index][0] += data.tex_scale[r_index][0];
data.tex_scale[r_index][0] *= -1.0;
}
if (out_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE ||
out_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
/* Side-by-Side */
data.tex_offset[1][0] -= data.tex_scale[1][0];
data.tex_scale[0][0] *= 2.0f;
data.tex_scale[1][0] *= 2.0f;
} else if (out_mode == GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM) {
data.tex_offset[1][1] -= data.tex_scale[1][1];
data.tex_scale[0][1] *= 2.0f;
data.tex_scale[1][1] *= 2.0f;
}
GST_DEBUG_OBJECT (conv,
"Scaling matrix [ %f, %f ] [ %f %f]. Offsets [ %f, %f ] [ %f, %f ]",
data.tex_scale[0][0], data.tex_scale[0][1],
data.tex_scale[1][0], data.tex_scale[1][1],
data.tex_offset[0][0], data.tex_offset[0][1], data.tex_offset[1][0],
data.tex_offset[1][1]);
if (in_mode == GST_VIDEO_MULTIVIEW_MODE_NONE ||
in_mode == GST_VIDEO_MULTIVIEW_MODE_MONO ||
in_mode == GST_VIDEO_MULTIVIEW_MODE_LEFT ||
in_mode == GST_VIDEO_MULTIVIEW_MODE_RIGHT)
mono_input = TRUE;
data.output_type = out_mode;
if (data.output_type == GST_VIDEO_MULTIVIEW_MODE_NONE ||
data.output_type == GST_VIDEO_MULTIVIEW_MODE_MONO) {
if (mono_input)
data.output_type = GST_VIDEO_MULTIVIEW_MODE_LEFT;
else
data.output_type = GST_VIDEO_MULTIVIEW_MODE_MONO;
} else if (data.output_type == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
data.output_type = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
}
data.tex_size[0] = GST_VIDEO_INFO_WIDTH (&render->out_info);
data.tex_size[1] = GST_VIDEO_INFO_HEIGHT (&render->out_info);
memcpy (&data.downmix[0], &downmix_matrices[conv->downmix_mode][0],
sizeof (data.downmix[0]));
memcpy (&data.downmix[1], &downmix_matrices[conv->downmix_mode][1],
sizeof (data.downmix[1]));
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);
conv->descriptor_up_to_date = TRUE;
return TRUE;
}
static gboolean
view_convert_update_command_state (GstVulkanViewConvert * conv,
VkCommandBuffer cmd, GstVulkanImageMemory ** in_mems,
GstVulkanImageMemory ** out_mems)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
VkImageView views[GST_VIDEO_MAX_PLANES];
int i;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info); i++) {
views[2 * i] = in_mems[i]->view;
views[2 * i + 1] = in_mems[i]->view;
}
if (!conv->descriptor_up_to_date) {
if (!_update_uniform (conv, in_mems, out_mems, views))
return FALSE;
update_descriptor_set (conv, views,
GST_VIDEO_INFO_N_PLANES (&render->in_info) * 2);
}
vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
render->pipeline_layout, 0, 1, &conv->descriptor_set, 0, NULL);
return TRUE;
}
static void gst_vulkan_view_convert_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_vulkan_view_convert_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static gboolean gst_vulkan_view_convert_start (GstBaseTransform * bt);
static gboolean gst_vulkan_view_convert_stop (GstBaseTransform * bt);
static GstCaps *gst_vulkan_view_convert_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_vulkan_view_convert_fixate_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static GstFlowReturn gst_vulkan_view_convert_transform (GstBaseTransform * bt,
GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_vulkan_view_convert_set_caps (GstBaseTransform * bt,
GstCaps * in_caps, GstCaps * out_caps);
static VkAttachmentReference
* gst_vulkan_view_convert_render_pass_attachment_references
(GstVulkanFullScreenRender * render, guint * n_attachments);
static VkAttachmentDescription
* gst_vulkan_view_convert_render_pass_attachment_descriptions
(GstVulkanFullScreenRender * render, guint * n_descriptions);
static VkDescriptorSetLayoutBinding
* gst_vulkan_view_convert_descriptor_set_layout_bindings
(GstVulkanFullScreenRender * render, guint * n_bindings);
static void
gst_vulkan_view_convert_shader_create_info (GstVulkanFullScreenRender * render);
static VkPushConstantRange
* gst_vulkan_view_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 }")));
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 }")));
enum
{
PROP_0,
PROP_INPUT_LAYOUT,
PROP_INPUT_FLAGS,
PROP_OUTPUT_LAYOUT,
PROP_OUTPUT_FLAGS,
PROP_OUTPUT_DOWNMIX_MODE
};
#define DEFAULT_DOWNMIX GST_VULKAN_STEREO_DOWNMIX_ANAGLYPH_GREEN_MAGENTA_DUBOIS
#define gst_vulkan_view_convert_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanViewConvert, gst_vulkan_view_convert,
GST_TYPE_VULKAN_FULL_SCREEN_RENDER,
GST_DEBUG_CATEGORY_INIT (gst_debug_vulkan_view_convert,
"vulkanviewconvert", 0, "Vulkan View Convert"));
static void
gst_vulkan_view_convert_class_init (GstVulkanViewConvertClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseTransformClass *gstbasetransform_class;
GstVulkanFullScreenRenderClass *fullscreenrender_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasetransform_class = (GstBaseTransformClass *) klass;
fullscreenrender_class = (GstVulkanFullScreenRenderClass *) klass;
gobject_class->set_property = gst_vulkan_view_convert_set_property;
gobject_class->get_property = gst_vulkan_view_convert_get_property;
g_object_class_install_property (gobject_class, PROP_INPUT_LAYOUT,
g_param_spec_enum ("input-mode-override",
"Input Multiview Mode Override",
"Override any input information about multiview layout",
GST_TYPE_VIDEO_MULTIVIEW_MODE,
GST_VIDEO_MULTIVIEW_MODE_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_INPUT_FLAGS,
g_param_spec_flags ("input-flags-override",
"Input Multiview Flags Override",
"Override any input information about multiview layout flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_OUTPUT_LAYOUT,
g_param_spec_enum ("output-mode-override",
"Output Multiview Mode Override",
"Override automatic output mode selection for multiview layout",
GST_TYPE_VIDEO_MULTIVIEW_MODE, GST_VIDEO_MULTIVIEW_MODE_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_OUTPUT_FLAGS,
g_param_spec_flags ("output-flags-override",
"Output Multiview Flags Override",
"Override automatic negotiation for output multiview layout flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_OUTPUT_DOWNMIX_MODE,
g_param_spec_enum ("downmix-mode", "Mode for mono downmixed output",
"Output anaglyph type to generate when downmixing to mono",
GST_TYPE_VULKAN_STEREO_DOWNMIX, DEFAULT_DOWNMIX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_metadata (gstelement_class, "Vulkan Uploader",
"Filter/Video/Convert", "A Vulkan View 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_view_convert_start);
gstbasetransform_class->stop =
GST_DEBUG_FUNCPTR (gst_vulkan_view_convert_stop);
gstbasetransform_class->transform_caps =
gst_vulkan_view_convert_transform_caps;
gstbasetransform_class->fixate_caps = gst_vulkan_view_convert_fixate_caps;
gstbasetransform_class->set_caps = gst_vulkan_view_convert_set_caps;
gstbasetransform_class->transform = gst_vulkan_view_convert_transform;
fullscreenrender_class->render_pass_attachment_references =
gst_vulkan_view_convert_render_pass_attachment_references;
fullscreenrender_class->render_pass_attachment_descriptions =
gst_vulkan_view_convert_render_pass_attachment_descriptions;
fullscreenrender_class->descriptor_set_layout_bindings =
gst_vulkan_view_convert_descriptor_set_layout_bindings;
fullscreenrender_class->shader_create_info =
gst_vulkan_view_convert_shader_create_info;
fullscreenrender_class->push_constant_ranges =
gst_vulkan_view_convert_push_constant_ranges;
}
static void
gst_vulkan_view_convert_init (GstVulkanViewConvert * conv)
{
conv->downmix_mode = DEFAULT_DOWNMIX;
conv->input_mode_override = GST_VIDEO_MULTIVIEW_MODE_NONE;
conv->input_flags_override = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
conv->output_mode_override = GST_VIDEO_MULTIVIEW_MODE_NONE;
conv->output_flags_override = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
}
static void
gst_vulkan_view_convert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (object);
switch (prop_id) {
case PROP_INPUT_LAYOUT:
conv->input_mode_override = g_value_get_enum (value);
break;
case PROP_INPUT_FLAGS:
conv->input_flags_override = g_value_get_flags (value);
break;
case PROP_OUTPUT_LAYOUT:
conv->output_mode_override = g_value_get_enum (value);
break;
case PROP_OUTPUT_FLAGS:
conv->output_flags_override = g_value_get_flags (value);
break;
case PROP_OUTPUT_DOWNMIX_MODE:
conv->downmix_mode = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_LOCK (conv);
conv->descriptor_up_to_date = FALSE;
GST_OBJECT_UNLOCK (conv);
}
static void
gst_vulkan_view_convert_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (object);
switch (prop_id) {
case PROP_INPUT_LAYOUT:
g_value_set_enum (value, conv->input_mode_override);
break;
case PROP_INPUT_FLAGS:
g_value_set_flags (value, conv->input_flags_override);
break;
case PROP_OUTPUT_LAYOUT:
g_value_set_enum (value, conv->output_mode_override);
break;
case PROP_OUTPUT_FLAGS:
g_value_set_flags (value, conv->output_flags_override);
break;
case PROP_OUTPUT_DOWNMIX_MODE:
g_value_set_enum (value, conv->downmix_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Function that can halve the value
* of ints, fractions, int/fraction ranges and lists of ints/fractions */
static gboolean
_halve_value (GValue * out, const GValue * in_value)
{
/* Fundamental fixed types first */
if (G_VALUE_HOLDS_INT (in_value)) {
g_value_init (out, G_TYPE_INT);
g_value_set_int (out, MAX (g_value_get_int (in_value) / 2, 1));
} else if (GST_VALUE_HOLDS_FRACTION (in_value)) {
gint num, den;
num = gst_value_get_fraction_numerator (in_value);
den = gst_value_get_fraction_denominator (in_value);
g_value_init (out, GST_TYPE_FRACTION);
/* Don't adjust 'infinite' fractions */
if ((num != 1 || den != 2147483647) && (num != 2147483647 || den != 1)) {
/* FIXME - could do better approximation when den > G_MAXINT/2? */
den = den > G_MAXINT / 2 ? G_MAXINT : den * 2;
}
gst_value_set_fraction (out, num, den);
} else if (GST_VALUE_HOLDS_INT_RANGE (in_value)) {
gint range_min = gst_value_get_int_range_min (in_value);
gint range_max = gst_value_get_int_range_max (in_value);
gint range_step = gst_value_get_int_range_step (in_value);
g_value_init (out, GST_TYPE_INT_RANGE);
if (range_min != 1)
range_min = MAX (1, range_min / 2);
if (range_max != G_MAXINT)
range_max = MAX (1, range_max / 2);
gst_value_set_int_range_step (out, range_min,
range_max, MAX (1, range_step / 2));
} else if (GST_VALUE_HOLDS_FRACTION_RANGE (in_value)) {
GValue min_out = G_VALUE_INIT;
GValue max_out = G_VALUE_INIT;
const GValue *range_min = gst_value_get_fraction_range_min (in_value);
const GValue *range_max = gst_value_get_fraction_range_max (in_value);
_halve_value (&min_out, range_min);
_halve_value (&max_out, range_max);
g_value_init (out, GST_TYPE_FRACTION_RANGE);
gst_value_set_fraction_range (out, &min_out, &max_out);
g_value_unset (&min_out);
g_value_unset (&max_out);
} else if (GST_VALUE_HOLDS_LIST (in_value)) {
gint i;
g_value_init (out, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (in_value); i++) {
const GValue *entry;
GValue tmp = G_VALUE_INIT;
entry = gst_value_list_get_value (in_value, i);
/* Random list values might not be the right type */
if (!_halve_value (&tmp, entry))
goto fail;
gst_value_list_append_and_take_value (out, &tmp);
}
} else {
return FALSE;
}
return TRUE;
fail:
g_value_unset (out);
return FALSE;
}
static GstStructure *
_halve_structure_field (const GstStructure * in, const gchar * field_name)
{
GstStructure *out;
const GValue *in_value = gst_structure_get_value (in, field_name);
GValue tmp = G_VALUE_INIT;
if (G_UNLIKELY (in_value == NULL))
return gst_structure_copy (in); /* Field doesn't exist, leave it as is */
if (!_halve_value (&tmp, in_value))
return NULL;
out = gst_structure_copy (in);
gst_structure_set_value (out, field_name, &tmp);
g_value_unset (&tmp);
return out;
}
/* Function that can double the value
* of ints, fractions, int/fraction ranges and lists of ints/fractions */
static gboolean
_double_value (GValue * out, const GValue * in_value)
{
/* Fundamental fixed types first */
if (G_VALUE_HOLDS_INT (in_value)) {
gint n = g_value_get_int (in_value);
g_value_init (out, G_TYPE_INT);
if (n <= G_MAXINT / 2)
g_value_set_int (out, n * 2);
else
g_value_set_int (out, G_MAXINT);
} else if (GST_VALUE_HOLDS_FRACTION (in_value)) {
gint num, den;
num = gst_value_get_fraction_numerator (in_value);
den = gst_value_get_fraction_denominator (in_value);
g_value_init (out, GST_TYPE_FRACTION);
/* Don't adjust 'infinite' fractions */
if ((num != 1 || den != 2147483647) && (num != 2147483647 || den != 1)) {
/* FIXME - could do better approximation when num > G_MAXINT/2? */
num = num > G_MAXINT / 2 ? G_MAXINT : num * 2;
}
gst_value_set_fraction (out, num, den);
} else if (GST_VALUE_HOLDS_INT_RANGE (in_value)) {
gint range_min = gst_value_get_int_range_min (in_value);
gint range_max = gst_value_get_int_range_max (in_value);
gint range_step = gst_value_get_int_range_step (in_value);
if (range_min != 1) {
range_min = MIN (G_MAXINT / 2, range_min);
range_min *= 2;
}
if (range_max != G_MAXINT) {
range_max = MIN (G_MAXINT / 2, range_max);
range_max *= 2;
}
range_step = MIN (G_MAXINT / 2, range_step);
g_value_init (out, GST_TYPE_INT_RANGE);
gst_value_set_int_range_step (out, range_min, range_max, range_step);
} else if (GST_VALUE_HOLDS_FRACTION_RANGE (in_value)) {
GValue min_out = G_VALUE_INIT;
GValue max_out = G_VALUE_INIT;
const GValue *range_min = gst_value_get_fraction_range_min (in_value);
const GValue *range_max = gst_value_get_fraction_range_max (in_value);
_double_value (&min_out, range_min);
_double_value (&max_out, range_max);
g_value_init (out, GST_TYPE_FRACTION_RANGE);
gst_value_set_fraction_range (out, &min_out, &max_out);
g_value_unset (&min_out);
g_value_unset (&max_out);
} else if (GST_VALUE_HOLDS_LIST (in_value)) {
gint i;
g_value_init (out, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (in_value); i++) {
const GValue *entry;
GValue tmp = G_VALUE_INIT;
entry = gst_value_list_get_value (in_value, i);
/* Random list values might not be the right type */
if (!_double_value (&tmp, entry))
goto fail;
gst_value_list_append_and_take_value (out, &tmp);
}
} else {
return FALSE;
}
return TRUE;
fail:
g_value_unset (out);
return FALSE;
}
static GstStructure *
_double_structure_field (const GstStructure * in, const gchar * field_name)
{
GstStructure *out;
const GValue *in_value = gst_structure_get_value (in, field_name);
GValue tmp = G_VALUE_INIT;
if (G_UNLIKELY (in_value == NULL))
return gst_structure_copy (in); /* Field doesn't exist, leave it as is */
if (!_double_value (&tmp, in_value))
return NULL;
out = gst_structure_copy (in);
gst_structure_set_value (out, field_name, &tmp);
g_value_unset (&tmp);
return out;
}
/* Return a copy of the caps with the requested field doubled in value/range */
static GstCaps *
_double_caps_field (const GstCaps * in, const gchar * field_name)
{
gint i;
GstCaps *out = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (in); i++) {
const GstStructure *cur = gst_caps_get_structure (in, i);
GstCapsFeatures *f = gst_caps_get_features (in, i);
GstStructure *res = _double_structure_field (cur, field_name);
out =
gst_caps_merge_structure_full (out, res,
f ? gst_caps_features_copy (f) : NULL);
}
return out;
}
/* Takes ownership of the input caps */
static GstCaps *
_expand_par_for_half_aspect (GstCaps * in, gboolean vertical_half_aspect)
{
guint mview_flags, mview_flags_mask;
GstCaps *out;
GstStructure *tmp;
out = gst_caps_new_empty ();
while (gst_caps_get_size (in) > 0) {
GstStructure *s;
GstCapsFeatures *features;
features = gst_caps_get_features (in, 0);
if (features)
features = gst_caps_features_copy (features);
s = gst_caps_steal_structure (in, 0);
if (!gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
&mview_flags_mask)) {
gst_caps_append_structure_full (out, s, features);
continue;
}
/* If the input doesn't care about the half-aspect flag, allow current PAR in either variant */
if ((mview_flags_mask & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) == 0) {
gst_caps_append_structure_full (out, s, features);
continue;
}
if (!gst_structure_has_field (s, "pixel-aspect-ratio")) {
/* No par field, dont-care the half-aspect flag */
gst_structure_set (s, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
gst_caps_append_structure_full (out, s, features);
continue;
}
/* Halve or double PAR base on inputs input specified. */
/* Append a copy with the half-aspect flag as-is */
tmp = gst_structure_copy (s);
out = gst_caps_merge_structure_full (out, tmp,
features ? gst_caps_features_copy (features) : NULL);
/* and then a copy inverted */
if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
/* Input is half-aspect. Double/halve the PAR, clear the flag */
if (vertical_half_aspect)
tmp = _halve_structure_field (s, "pixel-aspect-ratio");
else
tmp = _double_structure_field (s, "pixel-aspect-ratio");
/* Clear the flag */
gst_structure_set (tmp, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
} else {
if (vertical_half_aspect)
tmp = _double_structure_field (s, "pixel-aspect-ratio");
else
tmp = _halve_structure_field (s, "pixel-aspect-ratio");
/* Set the flag */
gst_structure_set (tmp, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
}
out = gst_caps_merge_structure_full (out, tmp,
features ? gst_caps_features_copy (features) : NULL);
gst_structure_free (s);
if (features)
gst_caps_features_free (features);
}
gst_caps_unref (in);
return out;
}
/* If input supports top-bottom or row-interleaved, we may halve height to mono frames.
* If input supports left-right, checkerboard, quincunx or column-interleaved,
* we may halve width to mono frames.
* For output of top-bottom or row-interleaved, we may double the mono height
* For output of left-right, checkerboard, quincunx or column-interleaved,
* we may double the mono width.
* In all cases, if input has half-aspect and output does not, we may double the PAR
* And if input does *not* have half-aspect flag and output does not, we may halve the PAR
*/
static GstCaps *
_expand_structure (GstVulkanViewConvert * viewconvert,
GstCaps * out_caps, GstStructure * structure, GstCapsFeatures * features)
{
GstCaps *expanded_caps, *tmp;
GstCaps *mono_caps;
const gchar *default_mview_mode_str = NULL;
guint mview_flags, mview_flags_mask;
const GValue *in_modes;
gint i;
/* Empty caps to accumulate into */
expanded_caps = gst_caps_new_empty ();
/* First, set defaults if multiview flags are missing */
default_mview_mode_str =
gst_video_multiview_mode_to_caps_string (GST_VIDEO_MULTIVIEW_MODE_MONO);
mview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
mview_flags_mask = GST_FLAG_SET_MASK_EXACT;
if (!gst_structure_has_field (structure, "multiview-mode")) {
gst_structure_set (structure,
"multiview-mode", G_TYPE_STRING, default_mview_mode_str, NULL);
}
if (!gst_structure_has_field (structure, "multiview-flags")) {
gst_structure_set (structure,
"multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mview_flags,
mview_flags_mask, NULL);
} else {
gst_structure_get_flagset (structure, "multiview-flags",
&mview_flags, &mview_flags_mask);
}
in_modes = gst_structure_get_value (structure, "multiview-mode");
mono_caps = gst_caps_new_empty ();
if (gst_value_intersect (NULL, in_modes,
gst_video_multiview_get_mono_modes ())) {
GstStructure *new_struct = gst_structure_copy (structure);
gst_structure_set_value (new_struct, "multiview-mode",
gst_video_multiview_get_mono_modes ());
/* Half-aspect makes no sense for mono or unpacked, get rid of it */
if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
gst_structure_set (new_struct, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
}
gst_caps_append_structure_full (mono_caps, new_struct,
features ? gst_caps_features_copy (features) : NULL);
}
if (gst_value_intersect (NULL, in_modes,
gst_video_multiview_get_unpacked_modes ())) {
GstStructure *new_struct = gst_structure_copy (structure);
gst_structure_set_value (new_struct, "multiview-mode",
gst_video_multiview_get_mono_modes ());
/* Half-aspect makes no sense for mono or unpacked, get rid of it */
if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
gst_structure_set (new_struct, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
}
gst_caps_append_structure_full (mono_caps, new_struct,
features ? gst_caps_features_copy (features) : NULL);
}
if (gst_value_intersect (NULL, in_modes,
gst_video_multiview_get_doubled_height_modes ())) {
/* Append mono formats with height halved */
GstStructure *new_struct = _halve_structure_field (structure, "height");
gst_structure_set_value (new_struct, "multiview-mode",
gst_video_multiview_get_mono_modes ());
/* Normalise the half-aspect flag away */
if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
GstStructure *s =
_halve_structure_field (new_struct, "pixel-aspect-ratio");
gst_structure_set (structure, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
gst_structure_free (new_struct);
new_struct = s;
}
mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct,
features ? gst_caps_features_copy (features) : NULL);
}
if (gst_value_intersect (NULL, in_modes,
gst_video_multiview_get_doubled_width_modes ())) {
/* Append mono formats with width halved */
GstStructure *new_struct = _halve_structure_field (structure, "width");
gst_structure_set_value (new_struct, "multiview-mode",
gst_video_multiview_get_mono_modes ());
/* Normalise the half-aspect flag away */
if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
GstStructure *s =
_double_structure_field (new_struct, "pixel-aspect-ratio");
gst_structure_set (structure, "multiview-flags",
GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
gst_structure_free (new_struct);
new_struct = s;
}
mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct,
features ? gst_caps_features_copy (features) : NULL);
}
if (gst_value_intersect (NULL, in_modes,
gst_video_multiview_get_doubled_size_modes ())) {
/* Append checkerboard/doubled size formats with width & height halved */
GstStructure *new_struct_w = _halve_structure_field (structure, "width");
GstStructure *new_struct_wh =
_halve_structure_field (new_struct_w, "height");
gst_structure_free (new_struct_w);
gst_structure_set_value (new_struct_wh, "multiview-mode",
gst_video_multiview_get_mono_modes ());
mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct_wh,
features ? gst_caps_features_copy (features) : NULL);
}
/* Everything is normalised now, unset the flags we can change */
/* Remove the views field, as these are all 'mono' modes
* Need to do this before we expand caps back out to frame packed modes */
for (i = 0; i < gst_caps_get_size (mono_caps); i++) {
GstStructure *s = gst_caps_get_structure (mono_caps, i);
gst_structure_remove_fields (s, "views", NULL);
if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
&mview_flags_mask)) {
/* Preserve only the half-aspect and mixed-mono flags, for now.
* The rest we can change */
mview_flags_mask &=
(GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT |
GST_VIDEO_MULTIVIEW_FLAGS_MIXED_MONO);
gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags, mview_flags_mask, NULL);
}
}
GST_TRACE_OBJECT (viewconvert,
"Collected single-view caps %" GST_PTR_FORMAT, mono_caps);
/* Put unpacked and mono modes first. We don't care about flags. Clear them */
tmp = gst_caps_copy (mono_caps);
for (i = 0; i < gst_caps_get_size (tmp); i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
gst_structure_remove_fields (s, "views", NULL);
if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
&mview_flags_mask)) {
/* We can change any flags for mono modes - half-aspect and mixed-mono have no meaning */
mview_flags_mask = 0;
gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags, mview_flags_mask, NULL);
}
}
expanded_caps = gst_caps_merge (expanded_caps, tmp);
/* Unpacked output modes have 2 views, for now */
tmp = gst_caps_copy (mono_caps);
gst_caps_set_value (tmp, "multiview-mode",
gst_video_multiview_get_unpacked_modes ());
for (i = 0; i < gst_caps_get_size (tmp); i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
gst_structure_set (s, "views", G_TYPE_INT, 2, NULL);
if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
&mview_flags_mask)) {
/* We can change any flags for unpacked modes - half-aspect and mixed-mono have no meaning */
mview_flags_mask = 0;
gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
mview_flags, mview_flags_mask, NULL);
}
}
expanded_caps = gst_caps_merge (expanded_caps, tmp);
/* Double height output modes */
tmp = _double_caps_field (mono_caps, "height");
gst_caps_set_value (tmp, "multiview-mode",
gst_video_multiview_get_doubled_height_modes ());
tmp = _expand_par_for_half_aspect (tmp, TRUE);
expanded_caps = gst_caps_merge (expanded_caps, tmp);
/* Double width output modes */
tmp = _double_caps_field (mono_caps, "width");
gst_caps_set_value (tmp, "multiview-mode",
gst_video_multiview_get_doubled_width_modes ());
tmp = _expand_par_for_half_aspect (tmp, FALSE);
expanded_caps = gst_caps_merge (expanded_caps, tmp);
/* Double size output modes */
{
GstCaps *tmp_w = _double_caps_field (mono_caps, "width");
tmp = _double_caps_field (tmp_w, "height");
gst_caps_unref (tmp_w);
gst_caps_set_value (tmp, "multiview-mode",
gst_video_multiview_get_doubled_size_modes ());
expanded_caps = gst_caps_merge (expanded_caps, tmp);
}
/* We're done with the mono caps now */
gst_caps_unref (mono_caps);
GST_TRACE_OBJECT (viewconvert,
"expanded transform caps now %" GST_PTR_FORMAT, expanded_caps);
if (gst_caps_is_empty (expanded_caps)) {
gst_caps_unref (expanded_caps);
return out_caps;
}
/* Really, we can rescale - so at this point we can append full-range
* height/width/PAR as an unpreferred final option. */
/* tmp = gst_caps_copy (expanded_caps);
gst_caps_set_simple (tmp, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
*/
out_caps = gst_caps_merge (out_caps, expanded_caps);
/* out_caps = gst_caps_merge (out_caps, tmp);*/
return out_caps;
}
static GstCaps *
_intersect_with_mview_mode (GstCaps * caps,
GstVideoMultiviewMode mode, GstVideoMultiviewFlags flags)
{
GstCaps *filter, *result;
const gchar *caps_str;
caps_str = gst_video_multiview_mode_to_caps_string (mode);
filter = gst_caps_new_simple ("video/x-raw",
"multiview-mode", G_TYPE_STRING,
caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, flags,
GST_FLAG_SET_MASK_EXACT, NULL);
if (mode == GST_VIDEO_MULTIVIEW_MODE_SEPARATED ||
mode == GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME)
gst_caps_set_simple (filter, "views", G_TYPE_INT, 2, NULL);
gst_caps_set_features (filter, 0, gst_caps_features_new_any ());
GST_DEBUG ("Intersecting target caps %" GST_PTR_FORMAT
" with caps %" GST_PTR_FORMAT, caps, filter);
result = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (filter);
return result;
}
static GstCaps *
_intersect_with_mview_modes (GstCaps * caps, const GValue * modes)
{
GstCaps *filter, *result;
filter = gst_caps_new_empty_simple ("video/x-raw");
gst_caps_set_value (filter, "multiview-mode", modes);
gst_caps_set_features (filter, 0, gst_caps_features_new_any ());
GST_DEBUG ("Intersecting target caps %" GST_PTR_FORMAT
" with caps %" GST_PTR_FORMAT, caps, filter);
result = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (filter);
return result;
}
static GstCaps *
gst_vulkan_view_convert_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstVulkanViewConvert *viewconvert = GST_VULKAN_VIEW_CONVERT (bt);
GstCaps *base_caps =
gst_static_pad_template_get_caps (&gst_vulkan_sink_template);
GstCaps *out_caps, *tmp_caps;
gint i;
GST_DEBUG_OBJECT (viewconvert, "Direction %s "
"input caps %" GST_PTR_FORMAT " filter %" GST_PTR_FORMAT,
direction == GST_PAD_SINK ? "sink" : "src", caps, filter);
/* We can only process VulkanImage caps, start from that */
caps = gst_caps_intersect (caps, base_caps);
gst_caps_unref (base_caps);
/* Change input/output to the formats we can convert to/from,
* but keep the original caps at the start - we will always prefer
* passthrough */
if (direction == GST_PAD_SINK) {
out_caps = gst_caps_copy (caps);
if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
GstVideoMultiviewMode mode = viewconvert->input_mode_override;
GstVideoMultiviewFlags flags = viewconvert->input_flags_override;
const gchar *caps_str = gst_video_multiview_mode_to_caps_string (mode);
/* Coerce the input caps before transforming, so the sizes come out right */
gst_caps_set_simple (out_caps, "multiview-mode", G_TYPE_STRING,
caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, flags,
GST_FLAG_SET_MASK_EXACT, NULL);
}
} else {
out_caps = gst_caps_new_empty ();
}
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
GstCapsFeatures *features = gst_caps_get_features (caps, i);
out_caps = _expand_structure (viewconvert, out_caps, structure, features);
}
if (gst_caps_is_empty (out_caps))
goto out;
/* If we have an output mode override, limit things to that */
if (direction == GST_PAD_SINK &&
viewconvert->output_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
tmp_caps = _intersect_with_mview_mode (out_caps,
viewconvert->output_mode_override, viewconvert->output_flags_override);
gst_caps_unref (out_caps);
out_caps = tmp_caps;
} else if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
/* Prepend a copy of our preferred input caps in case the peer
* can handle them */
tmp_caps = _intersect_with_mview_mode (out_caps,
viewconvert->input_mode_override, viewconvert->input_flags_override);
out_caps = gst_caps_merge (out_caps, tmp_caps);
}
if (direction == GST_PAD_SRC) {
GstStructure *s;
/* When generating input caps, we also need a copy of the mono caps
* without multiview-mode or flags for backwards compat, at the end */
tmp_caps = _intersect_with_mview_mode (caps,
GST_VIDEO_MULTIVIEW_MODE_MONO, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
if (!gst_caps_is_empty (tmp_caps)) {
s = gst_caps_get_structure (tmp_caps, 0);
gst_structure_remove_fields (s, "multiview-mode", "multiview-flags",
NULL);
out_caps = gst_caps_merge (out_caps, tmp_caps);
} else
gst_caps_unref (tmp_caps);
}
out:
gst_caps_unref (caps);
GST_DEBUG_OBJECT (viewconvert, "Have caps %" GST_PTR_FORMAT
" filtering with caps %" GST_PTR_FORMAT, out_caps, filter);
if (filter) {
GstCaps *tmp =
gst_caps_intersect_full (filter, out_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (out_caps);
out_caps = tmp;
}
GST_DEBUG_OBJECT (viewconvert, "Returning caps %" GST_PTR_FORMAT, out_caps);
return out_caps;
}
static GstCaps *
fixate_size (GstVulkanViewConvert * viewconvert,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstStructure *ins, *outs;
const GValue *from_par, *to_par;
GValue fpar = { 0, }, tpar = {
0,};
othercaps = gst_caps_make_writable (othercaps);
othercaps = gst_caps_truncate (othercaps);
GST_DEBUG_OBJECT (viewconvert, "trying to fixate othercaps %" GST_PTR_FORMAT
" based on caps %" GST_PTR_FORMAT, othercaps, caps);
ins = gst_caps_get_structure (caps, 0);
outs = gst_caps_get_structure (othercaps, 0);
from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
/* If we're fixating from the sinkpad we always set the PAR and
* assume that missing PAR on the sinkpad means 1/1 and
* missing PAR on the srcpad means undefined
*/
if (direction == GST_PAD_SINK) {
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&tpar, 1, 1);
to_par = &tpar;
}
} else {
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&tpar, 1, 1);
to_par = &tpar;
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
NULL);
}
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
}
/* we have both PAR but they might not be fixated */
{
gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
gint w = 0, h = 0;
gint from_dar_n, from_dar_d;
gint num, den;
/* from_par should be fixed */
g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
gst_structure_get_int (outs, "width", &w);
gst_structure_get_int (outs, "height", &h);
/* if both width and height are already fixed, we can't do anything
* about it anymore */
if (w && h) {
GST_DEBUG_OBJECT (viewconvert,
"dimensions already set to %dx%d, not fixating", w, h);
if (!gst_value_is_fixed (to_par)) {
GST_DEBUG_OBJECT (viewconvert, "fixating to_par to %dx%d", 1, 1);
if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", 1, 1);
}
goto done;
}
/* Calculate input DAR */
if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
&from_dar_n, &from_dar_d)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
GST_DEBUG_OBJECT (viewconvert, "Input DAR is %d/%d", from_dar_n,
from_dar_d);
/* If either width or height are fixed there's not much we
* can do either except choosing a height or width and PAR
* that matches the DAR as good as possible
*/
if (h) {
gint num, den;
GST_DEBUG_OBJECT (viewconvert, "height is fixed (%d)", h);
if (!gst_value_is_fixed (to_par)) {
/* (shortcut) copy-paste (??) of videoscale seems to aim for 1/1,
* so let's make it so ...
* especially if following code assumes fixed */
GST_DEBUG_OBJECT (viewconvert, "fixating to_par to 1x1");
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", 1, 1);
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
}
/* PAR is fixed, choose the height that is nearest to the
* height with the same DAR */
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (viewconvert, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
goto done;
} else if (w) {
gint num, den;
GST_DEBUG_OBJECT (viewconvert, "width is fixed (%d)", w);
if (!gst_value_is_fixed (to_par)) {
/* (shortcut) copy-paste (??) of videoscale seems to aim for 1/1,
* so let's make it so ...
* especially if following code assumes fixed */
GST_DEBUG_OBJECT (viewconvert, "fixating to_par to 1x1");
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", 1, 1);
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
}
/* PAR is fixed, choose the height that is nearest to the
* height with the same DAR */
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (viewconvert, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
goto done;
} else if (gst_value_is_fixed (to_par)) {
GstStructure *tmp;
gint set_h, set_w, f_h, f_w;
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
/* Calculate scale factor for the PAR change */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
to_par_d, &num, &den)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
/* Try to keep the input height */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
w = (guint) gst_util_uint64_scale_int (set_h, num, den);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &set_w);
gst_structure_free (tmp);
/* We kept the DAR and the height is nearest to the original height */
if (set_w == w) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
f_h = set_h;
f_w = set_w;
/* If the former failed, try to keep the input width at least */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
h = (guint) gst_util_uint64_scale_int (set_w, den, num);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_free (tmp);
/* We kept the DAR and the width is nearest to the original width */
if (set_h == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
/* If all this failed, keep the height that was nearest to the orignal
* height and the nearest possible width. This changes the DAR but
* there's not much else to do here.
*/
gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
f_h, NULL);
goto done;
} else {
GstStructure *tmp;
gint set_h, set_w, set_par_n, set_par_d, tmp2;
/* width, height and PAR are not fixed */
/* First try to keep the height and width as good as possible
* and scale PAR */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
if (set_par_n == to_par_n && set_par_d == to_par_d) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* Otherwise try to scale width to keep the DAR with the set
* PAR and height */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int (set_h, num, den);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &tmp2);
gst_structure_free (tmp);
if (tmp2 == w) {
gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* ... or try the same with the height */
h = (guint) gst_util_uint64_scale_int (set_w, den, num);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &tmp2);
gst_structure_free (tmp);
if (tmp2 == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, tmp2, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* If all fails we can't keep the DAR and take the nearest values
* for everything from the first try */
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
}
}
done:
othercaps = gst_caps_fixate (othercaps);
GST_DEBUG_OBJECT (viewconvert, "fixated othercaps to %" GST_PTR_FORMAT,
othercaps);
if (from_par == &fpar)
g_value_unset (&fpar);
if (to_par == &tpar)
g_value_unset (&tpar);
return othercaps;
}
static GstCaps *
gst_vulkan_view_convert_fixate_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstVulkanViewConvert *viewconvert = GST_VULKAN_VIEW_CONVERT (bt);
GstVideoMultiviewMode mode = viewconvert->output_mode_override;
GstVideoMultiviewFlags flags = viewconvert->output_flags_override;
GstCaps *tmp;
othercaps = gst_caps_make_writable (othercaps);
GST_LOG_OBJECT (viewconvert, "dir %s fixating %" GST_PTR_FORMAT
" against caps %" GST_PTR_FORMAT,
direction == GST_PAD_SINK ? "sink" : "src", othercaps, caps);
if (direction == GST_PAD_SINK) {
if (mode != GST_VIDEO_MULTIVIEW_MODE_NONE) {
/* We have a requested output mode and are fixating source caps, try and enforce it */
GST_DEBUG_OBJECT (bt, "fixating multiview mode using the configured "
"output override mode 0x%x and flags 0x%x", mode, flags);
tmp = _intersect_with_mview_mode (othercaps, mode, flags);
gst_caps_unref (othercaps);
othercaps = tmp;
} else {
/* See if we can do passthrough */
GstVideoInfo info;
if (gst_video_info_from_caps (&info, caps)) {
GstVideoMultiviewMode mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&info);
GstVideoMultiviewFlags flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&info);
if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
mode = viewconvert->input_mode_override;
flags = viewconvert->input_flags_override;
}
tmp = _intersect_with_mview_mode (othercaps, mode, flags);
if (gst_caps_is_empty (tmp)) {
/* Nope, we can't pass our input caps downstream */
gst_caps_unref (tmp);
} else {
GST_DEBUG_OBJECT (bt, "can configure a passthrough multiview mode "
"using the input override mode 0x%x and flags 0x%x", mode, flags);
gst_caps_unref (othercaps);
othercaps = tmp;
goto done;
}
}
/* Prefer an unpacked mode for output */
tmp =
_intersect_with_mview_modes (othercaps,
gst_video_multiview_get_unpacked_modes ());
if (!gst_caps_is_empty (tmp)) {
GST_DEBUG_OBJECT (bt, "preferring an unpacked multiview mode");
gst_caps_unref (othercaps);
othercaps = tmp;
} else {
gst_caps_unref (tmp);
}
}
} else if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
/* See if we can coerce the caps into matching input mode/flags,
* in case it doesn't care at all, but allow it not to too */
mode = viewconvert->input_mode_override;
flags = viewconvert->input_flags_override;
tmp = _intersect_with_mview_mode (othercaps, mode, flags);
if (gst_caps_is_empty (tmp)) {
/* Nope, we can pass our input caps downstream */
gst_caps_unref (tmp);
} else {
GST_DEBUG_OBJECT (bt, "can configure a passthrough multiview mode "
"using the input override mode 0x%x and flags 0x%x", mode, flags);
gst_caps_unref (othercaps);
othercaps = tmp;
}
}
done:
othercaps = fixate_size (viewconvert, direction, caps, othercaps);
othercaps = gst_caps_fixate (othercaps);
GST_DEBUG_OBJECT (viewconvert, "dir %s fixated to %" GST_PTR_FORMAT
" against caps %" GST_PTR_FORMAT,
direction == GST_PAD_SINK ? "sink" : "src", othercaps, caps);
return othercaps;
}
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_view_convert_shader_create_info (GstVulkanFullScreenRender * 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, view_convert_frag,
view_convert_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_view_convert_push_constant_ranges (GstVulkanFullScreenRender *
render, guint * n_constants)
{
*n_constants = 0;
return NULL;
}
static VkDescriptorSetLayoutBinding
* gst_vulkan_view_convert_descriptor_set_layout_bindings
(GstVulkanFullScreenRender * render, guint * n_bindings)
{
VkDescriptorSetLayoutBinding *bindings;
guint i;
*n_bindings = 0;
*n_bindings += GST_VIDEO_INFO_N_PLANES (&render->in_info) * 2;
*n_bindings += 1; /* uniform binding */
bindings = g_new0 (VkDescriptorSetLayoutBinding, *n_bindings);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->in_info) * 2; 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
};
i++;
bindings[i] = (VkDescriptorSetLayoutBinding) {
.binding = i,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.pImmutableSamplers = NULL,
.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT
};
/* *INDENT-ON* */
}
/* *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_view_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_view_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 (GstVulkanViewConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
/* *INDENT-OFF* */
VkSamplerCreateInfo samplerInfo = {
.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
.magFilter = VK_FILTER_NEAREST,
.minFilter = VK_FILTER_NEAREST,
.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) {
g_clear_error (&error);
return NULL;
}
return sampler;
}
static gboolean
gst_vulkan_view_convert_start (GstBaseTransform * bt)
{
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_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 (GstVulkanViewConvert * 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) * 2,
},
{
.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 (GstVulkanViewConvert * 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 (GstVulkanViewConvert * conv)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (conv);
conv->uniform =
gst_vulkan_buffer_memory_alloc (render->device, VK_FORMAT_R8_UNORM,
sizeof (struct ViewUpdate),
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_view_convert_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
GstCaps * out_caps)
{
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
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_view_convert_stop (GstBaseTransform * bt)
{
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
conv->descriptor_up_to_date = FALSE;
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 (GstVulkanViewConvert * 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_view_convert_transform (GstBaseTransform * bt, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
GstVulkanImageMemory *in_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 out_image_memory_barrier;
/* *INDENT-OFF* */
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_COLOR_ATTACHMENT_WRITE_BIT,
.oldLayout = out_img_mems[i]->barrier.image_layout,
.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
/* FIXME: implement exclusive transfers */
.srcQueueFamilyIndex = 0,
.dstQueueFamilyIndex = 0,
.image = out_img_mems[i]->image,
.subresourceRange = out_img_mems[i]->barrier.subresource_range
};
/* *INDENT-ON* */
vkCmdPipelineBarrier (cmd,
out_img_mems[i]->barrier.parent.pipeline_stages,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, NULL, 0, NULL, 1,
&out_image_memory_barrier);
out_img_mems[i]->barrier.parent.pipeline_stages =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_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;
}
{
VkImageView attachments[4] = { 0, };
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&render->out_info); i++) {
attachments[i] = out_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;
}
}
view_convert_update_command_state (conv, cmd, in_img_mems, out_img_mems);
if (!gst_vulkan_full_screen_render_fill_command_buffer (render, cmd,
framebuffer))
return GST_FLOW_ERROR;
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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