3 * Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
22 * SECTION:element-vulkanimageidentity
23 * @title: vulkanimgeidentity
25 * vulkanimageidentity produces a vulkan image that is a copy of the input image.
34 #include "vkviewconvert.h"
36 #include "shaders/identity.vert.h"
37 #include "shaders/view_convert.frag.h"
38 #include "gstvulkan-plugins-enumtypes.h"
40 GST_DEBUG_CATEGORY (gst_debug_vulkan_view_convert);
41 #define GST_CAT_DEFAULT gst_debug_vulkan_view_convert
44 /* These match the order and number of DOWNMIX_ANAGLYPH_* modes */
45 static float downmix_matrices[][2][12] = {
46 { /* Green-Magenta Dubois */
47 {-0.062f, 0.284f, -0.015f, 0.0, -0.158f, 0.668f, -0.027f, 0.0, -0.039f, 0.143f, 0.021f, 0.0},
48 {0.529f, -0.016f, 0.009f, 0.0, 0.705f, -0.015f, 0.075f, 0.0, 0.024f, -0.065f, 0.937f, 0.0}
50 { /* Red-Cyan Dubois */
51 /* Source of this matrix: http://www.site.uottawa.ca/~edubois/anaglyph/LeastSquaresHowToPhotoshop.pdf */
52 {0.437f, -0.062f, -0.048f, 0.0, 0.449f, -0.062f, -0.050f, 0.0, 0.164f, -0.024f, -0.017f},
53 {-0.011f, 0.377f, -0.026f, 0.0, -0.032f, 0.761f, -0.093f, 0.0, -0.007f, 0.009f, 1.234f}
55 { /* Amber-blue Dubois */
56 {1.062f, -0.026f, -0.038f, 0.0, -0.205f, 0.908f, -0.173f, 0.0, 0.299f, 0.068f, 0.022f},
57 {-0.016f, 0.006f, 0.094f, 0.0, -0.123f, 0.062f, 0.185f, 0.0, -0.017f, -0.017f, 0.911f}
64 int in_reorder_idx[4];
65 int out_reorder_idx[4];
66 float tex_offset[2][2];
67 float tex_scale[2][2];
75 get_rgb_format_swizzle_order (GstVideoFormat format,
76 gint swizzle[GST_VIDEO_MAX_COMPONENTS])
78 const GstVideoFormatInfo *finfo = gst_video_format_get_info (format);
81 g_return_if_fail (finfo->flags & GST_VIDEO_FORMAT_FLAG_RGB
82 || format == GST_VIDEO_FORMAT_AYUV);
84 for (i = 0; i < finfo->n_components; i++) {
85 swizzle[c_i++] = finfo->poffset[i];
88 /* special case spaced RGB formats as the space does not contain a poffset
89 * value and we need all four components to be valid in order to swizzle
91 if (format == GST_VIDEO_FORMAT_xRGB || format == GST_VIDEO_FORMAT_xBGR) {
93 } else if (format == GST_VIDEO_FORMAT_RGBx || format == GST_VIDEO_FORMAT_BGRx) {
96 for (i = finfo->n_components; i < GST_VIDEO_MAX_COMPONENTS; i++) {
103 get_vulkan_rgb_format_swizzle_order (VkFormat format, gint * swizzle,
104 guint swizzle_count, guint offset)
106 const GstVulkanFormatInfo *finfo = gst_vulkan_format_get_info (format);
109 g_return_if_fail (finfo->flags & GST_VULKAN_FORMAT_FLAG_RGB);
110 g_return_if_fail (finfo->n_components <= swizzle_count);
112 for (i = 0; i < finfo->n_components; i++) {
113 swizzle[i] = offset + finfo->poffset[i];
115 for (i = finfo->n_components; i < swizzle_count; i++) {
120 /* given a swizzle index, produce an index such that:
122 * swizzle[idx[i]] == identity[i] where:
123 * - swizzle is the original swizzle
124 * - idx is the result
125 * - identity = {0, 1, 2,...}
126 * - unset fields are marked by -1
129 swizzle_identity_order (gint * swizzle, gint * idx)
133 for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++) {
137 for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++) {
138 if (swizzle[i] >= 0 && swizzle[i] < 4 && idx[swizzle[i]] == -1) {
145 video_format_to_reorder (GstVideoFormat v_format, gint * reorder,
149 case GST_VIDEO_FORMAT_RGBA:
150 case GST_VIDEO_FORMAT_RGBx:
151 case GST_VIDEO_FORMAT_BGRA:
152 case GST_VIDEO_FORMAT_BGRx:
153 case GST_VIDEO_FORMAT_ARGB:
154 case GST_VIDEO_FORMAT_xRGB:
155 case GST_VIDEO_FORMAT_ABGR:
156 case GST_VIDEO_FORMAT_xBGR:
157 case GST_VIDEO_FORMAT_AYUV:
158 get_rgb_format_swizzle_order (v_format, reorder);
160 case GST_VIDEO_FORMAT_UYVY:
163 reorder[2] = input ? 3 : 2;
166 case GST_VIDEO_FORMAT_YUY2:
170 reorder[3] = input ? 3 : 2;
172 case GST_VIDEO_FORMAT_NV12:
179 g_assert_not_reached ();
183 GST_TRACE ("swizzle: %u, %u, %u, %u", reorder[0], reorder[1], reorder[2],
188 finfo_get_plane_n_components (const GstVideoFormatInfo * finfo, guint plane)
190 guint n_components = 0, i;
192 switch (finfo->format) {
193 case GST_VIDEO_FORMAT_RGBx:
194 case GST_VIDEO_FORMAT_xRGB:
195 case GST_VIDEO_FORMAT_BGRx:
196 case GST_VIDEO_FORMAT_xBGR:
197 /* fixup spaced RGB formats as we treat the space as a normal alpha
199 return plane == 0 ? 4 : 0;
204 for (i = 0; i < finfo->n_components; i++) {
205 if (finfo->plane[i] == plane)
213 get_vulkan_format_swizzle_order (GstVideoFormat v_format,
214 VkFormat vk_format[GST_VIDEO_MAX_PLANES],
215 gint swizzle[GST_VIDEO_MAX_COMPONENTS])
217 const GstVideoFormatInfo *finfo;
218 int i, prev_in_i = 0;
220 finfo = gst_video_format_get_info (v_format);
221 for (i = 0; i < finfo->n_planes; i++) {
222 guint plane_components = finfo_get_plane_n_components (finfo, i);
223 get_vulkan_rgb_format_swizzle_order (vk_format[i],
224 &swizzle[prev_in_i], plane_components, prev_in_i);
225 prev_in_i += plane_components;
228 if (v_format == GST_VIDEO_FORMAT_YUY2 || v_format == GST_VIDEO_FORMAT_UYVY) {
229 /* Fixup these packed YUV formats as we use a two component format for
230 * a 4-component pixel and access two samples in the shader */
231 g_assert (swizzle[0] == 0);
232 g_assert (swizzle[1] == 1);
237 GST_TRACE ("%s: %i, %i, %i, %i", finfo->name, swizzle[0], swizzle[1],
238 swizzle[2], swizzle[3]);
242 calculate_reorder_indexes (GstVideoFormat in_format,
243 GstVulkanImageView * in_views[GST_VIDEO_MAX_COMPONENTS],
244 GstVideoFormat out_format,
245 GstVulkanImageView * out_views[GST_VIDEO_MAX_COMPONENTS],
246 int ret_in[GST_VIDEO_MAX_COMPONENTS], int ret_out[GST_VIDEO_MAX_COMPONENTS])
248 const GstVideoFormatInfo *in_finfo, *out_finfo;
249 VkFormat in_vk_formats[GST_VIDEO_MAX_COMPONENTS];
250 VkFormat out_vk_formats[GST_VIDEO_MAX_COMPONENTS];
251 int in_vk_order[GST_VIDEO_MAX_COMPONENTS],
252 in_reorder[GST_VIDEO_MAX_COMPONENTS];
253 int out_vk_order[GST_VIDEO_MAX_COMPONENTS],
254 out_reorder[GST_VIDEO_MAX_COMPONENTS];
255 int tmp[GST_VIDEO_MAX_PLANES];
258 in_finfo = gst_video_format_get_info (in_format);
259 out_finfo = gst_video_format_get_info (out_format);
261 for (i = 0; i < in_finfo->n_planes; i++)
262 in_vk_formats[i] = in_views[i]->image->create_info.format;
263 for (i = 0; i < out_finfo->n_planes; i++)
264 out_vk_formats[i] = out_views[i]->image->create_info.format;
266 get_vulkan_format_swizzle_order (in_format, in_vk_formats, in_vk_order);
267 video_format_to_reorder (in_format, in_reorder, TRUE);
269 video_format_to_reorder (out_format, out_reorder, FALSE);
270 get_vulkan_format_swizzle_order (out_format, out_vk_formats, out_vk_order);
272 for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
273 tmp[i] = out_vk_order[out_reorder[i]];
274 /* find the identity order for RGBA->$format */
275 GST_TRACE ("pre-invert: %u, %u, %u, %u", tmp[0], tmp[1], tmp[2], tmp[3]);
276 if (out_format == GST_VIDEO_FORMAT_YUY2
277 || out_format == GST_VIDEO_FORMAT_UYVY) {
278 for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
281 swizzle_identity_order (tmp, ret_out);
284 for (i = 0; i < GST_VIDEO_MAX_COMPONENTS; i++)
285 ret_in[i] = in_reorder[in_vk_order[i]];
286 GST_TRACE ("in reorder: %u, %u, %u, %u", ret_in[0], ret_in[1], ret_in[2],
288 GST_TRACE ("out reorder: %u, %u, %u, %u", ret_out[0], ret_out[1], ret_out[2],
293 update_descriptor_set (GstVulkanViewConvert * conv,
294 GstVulkanImageView ** in_views)
296 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (conv);
297 VkDescriptorImageInfo image_info[GST_VIDEO_MAX_PLANES];
298 VkWriteDescriptorSet writes[GST_VIDEO_MAX_PLANES];
299 GstVideoMultiviewMode in_mode;
300 GstVideoMultiviewFlags in_flags, out_flags;
301 VkImageView views[GST_VIDEO_MAX_PLANES];
304 in_mode = conv->input_mode_override;
305 in_flags = conv->input_flags_override;
306 if (in_mode == GST_VIDEO_MULTIVIEW_MODE_NONE)
307 in_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&vfilter->in_info);
308 out_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&vfilter->out_info);
310 for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&vfilter->in_info); i++) {
311 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST) ==
312 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST)) {
313 views[2 * i] = in_views[i]->view;
314 views[2 * i + 1] = in_views[i]->view;
316 views[2 * i] = in_views[i]->view;
317 views[2 * i + 1] = in_views[i]->view;
321 for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&vfilter->in_info) * 2; i++) {
323 image_info[i] = (VkDescriptorImageInfo) {
324 .imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
325 .imageView = views[i],
326 .sampler = (VkSampler) conv->quad->sampler->handle
329 g_assert (i < GST_VIDEO_MAX_PLANES);
331 writes[i] = (VkWriteDescriptorSet) {
332 .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
334 .dstSet = conv->quad->descriptor_set->set,
336 .dstArrayElement = 0,
337 .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
338 .descriptorCount = 1,
339 .pImageInfo = &image_info[i]
343 g_assert (i <= G_N_ELEMENTS (writes));
345 vkUpdateDescriptorSets (vfilter->device->device, i, writes, 0, NULL);
349 create_uniform_buffer (GstVulkanViewConvert * conv)
351 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (conv);
354 gst_vulkan_buffer_memory_alloc (vfilter->device,
355 sizeof (struct ViewUpdate),
356 VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
357 VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
358 VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
364 update_uniform (GstVulkanViewConvert * conv, GstVulkanImageView ** in_views,
365 GstVulkanImageView ** out_views)
367 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (conv);
368 GstVideoMultiviewMode in_mode, out_mode;
369 GstVideoMultiviewFlags in_flags, out_flags;
370 struct ViewUpdate data;
372 guint l_index, r_index;
373 gboolean mono_input = FALSE;
375 calculate_reorder_indexes (GST_VIDEO_INFO_FORMAT (&vfilter->in_info),
376 in_views, GST_VIDEO_INFO_FORMAT (&vfilter->out_info),
377 out_views, data.in_reorder_idx, data.out_reorder_idx);
379 data.tex_scale[0][0] = data.tex_scale[0][1] = 1.;
380 data.tex_scale[1][0] = data.tex_scale[1][1] = 1.;
381 data.tex_offset[0][0] = data.tex_offset[0][1] = 0.;
382 data.tex_offset[1][0] = data.tex_offset[1][1] = 0.;
384 in_mode = conv->input_mode_override;
385 in_flags = conv->input_flags_override;
386 if (in_mode == GST_VIDEO_MULTIVIEW_MODE_NONE) {
387 in_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&vfilter->in_info);
388 in_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&vfilter->in_info);
391 /* Configured output mode already takes any override
393 out_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&vfilter->out_info);
394 out_flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&vfilter->out_info);
396 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST) ==
397 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST)) {
401 GST_LOG_OBJECT (conv, "Switching left/right views");
407 if (in_mode < GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE) { /* unknown/mono/left/right single image */
408 } else if (in_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE ||
409 in_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
410 /* Side-by-side input */
411 data.tex_offset[r_index][0] += 0.5 * data.tex_scale[r_index][0];
412 data.tex_scale[0][0] *= 0.5f; /* Half horizontal scale */
413 data.tex_scale[1][0] *= 0.5f;
414 } else if (in_mode == GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM) { /* top-bottom */
415 data.tex_offset[r_index][1] += 0.5 * data.tex_scale[r_index][1];
416 data.tex_scale[0][1] *= 0.5f; /* Half vertical scale */
417 data.tex_scale[1][1] *= 0.5f;
420 /* Flipped is vertical, flopped is horizontal.
421 * Adjust and offset per-view scaling. This needs to be done
422 * after the input scaling already splits the views, before
423 * adding any output scaling. */
424 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED) !=
425 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED)) {
426 data.tex_offset[l_index][1] += data.tex_scale[l_index][1];
427 data.tex_scale[l_index][1] *= -1.0;
429 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED) !=
430 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED)) {
431 data.tex_offset[l_index][0] += data.tex_scale[l_index][0];
432 data.tex_scale[l_index][0] *= -1.0;
434 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED) !=
435 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED)) {
436 data.tex_offset[r_index][1] += data.tex_scale[r_index][1];
437 data.tex_scale[r_index][1] *= -1.0;
439 if ((in_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED) !=
440 (out_flags & GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED)) {
441 data.tex_offset[r_index][0] += data.tex_scale[r_index][0];
442 data.tex_scale[r_index][0] *= -1.0;
445 if (out_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE ||
446 out_mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
448 data.tex_offset[1][0] -= data.tex_scale[1][0];
449 data.tex_scale[0][0] *= 2.0f;
450 data.tex_scale[1][0] *= 2.0f;
451 } else if (out_mode == GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM) {
452 data.tex_offset[1][1] -= data.tex_scale[1][1];
453 data.tex_scale[0][1] *= 2.0f;
454 data.tex_scale[1][1] *= 2.0f;
457 GST_DEBUG_OBJECT (conv,
458 "Scaling matrix [ %f, %f ] [ %f %f]. Offsets [ %f, %f ] [ %f, %f ]",
459 data.tex_scale[0][0], data.tex_scale[0][1],
460 data.tex_scale[1][0], data.tex_scale[1][1],
461 data.tex_offset[0][0], data.tex_offset[0][1], data.tex_offset[1][0],
462 data.tex_offset[1][1]);
464 if (in_mode == GST_VIDEO_MULTIVIEW_MODE_NONE ||
465 in_mode == GST_VIDEO_MULTIVIEW_MODE_MONO ||
466 in_mode == GST_VIDEO_MULTIVIEW_MODE_LEFT ||
467 in_mode == GST_VIDEO_MULTIVIEW_MODE_RIGHT)
470 data.output_type = out_mode;
471 if (data.output_type == GST_VIDEO_MULTIVIEW_MODE_NONE ||
472 data.output_type == GST_VIDEO_MULTIVIEW_MODE_MONO) {
474 data.output_type = GST_VIDEO_MULTIVIEW_MODE_LEFT;
476 data.output_type = GST_VIDEO_MULTIVIEW_MODE_MONO;
477 } else if (data.output_type == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX) {
478 data.output_type = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
481 data.tex_size[0] = GST_VIDEO_INFO_WIDTH (&vfilter->out_info);
482 data.tex_size[1] = GST_VIDEO_INFO_HEIGHT (&vfilter->out_info);
483 memcpy (&data.downmix[0], &downmix_matrices[conv->downmix_mode][0],
484 sizeof (data.downmix[0]));
485 memcpy (&data.downmix[1], &downmix_matrices[conv->downmix_mode][1],
486 sizeof (data.downmix[1]));
488 if (!gst_memory_map (conv->uniform, &map_info, GST_MAP_WRITE)) {
491 memcpy (map_info.data, &data, sizeof (data));
492 gst_memory_unmap (conv->uniform, &map_info);
498 get_uniforms (GstVulkanViewConvert * conv,
499 GstVulkanImageView ** in_views, GstVulkanImageView ** out_views)
501 if (!conv->uniform) {
502 if (!create_uniform_buffer (conv))
504 if (!update_uniform (conv, in_views, out_views)) {
505 gst_memory_unref (conv->uniform);
506 conv->uniform = NULL;
511 return gst_memory_ref (conv->uniform);
514 static void gst_vulkan_view_convert_set_property (GObject * object,
515 guint prop_id, const GValue * value, GParamSpec * pspec);
516 static void gst_vulkan_view_convert_get_property (GObject * object,
517 guint prop_id, GValue * value, GParamSpec * pspec);
519 static gboolean gst_vulkan_view_convert_start (GstBaseTransform * bt);
520 static gboolean gst_vulkan_view_convert_stop (GstBaseTransform * bt);
522 static GstCaps *gst_vulkan_view_convert_transform_caps (GstBaseTransform * bt,
523 GstPadDirection direction, GstCaps * caps, GstCaps * filter);
524 static GstCaps *gst_vulkan_view_convert_fixate_caps (GstBaseTransform * bt,
525 GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
526 static GstFlowReturn gst_vulkan_view_convert_transform (GstBaseTransform * bt,
527 GstBuffer * inbuf, GstBuffer * outbuf);
528 static gboolean gst_vulkan_view_convert_set_caps (GstBaseTransform * bt,
529 GstCaps * in_caps, GstCaps * out_caps);
531 static GstStaticPadTemplate gst_vulkan_sink_template =
532 GST_STATIC_PAD_TEMPLATE ("sink",
535 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
536 (GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE,
539 static GstStaticPadTemplate gst_vulkan_src_template =
540 GST_STATIC_PAD_TEMPLATE ("src",
543 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
544 (GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE,
554 PROP_OUTPUT_DOWNMIX_MODE
557 #define DEFAULT_DOWNMIX GST_VULKAN_STEREO_DOWNMIX_ANAGLYPH_GREEN_MAGENTA_DUBOIS
559 #define gst_vulkan_view_convert_parent_class parent_class
560 G_DEFINE_TYPE_WITH_CODE (GstVulkanViewConvert, gst_vulkan_view_convert,
561 GST_TYPE_VULKAN_VIDEO_FILTER,
562 GST_DEBUG_CATEGORY_INIT (gst_debug_vulkan_view_convert,
563 "vulkanviewconvert", 0, "Vulkan View Convert"));
566 gst_vulkan_view_convert_class_init (GstVulkanViewConvertClass * klass)
568 GObjectClass *gobject_class;
569 GstElementClass *gstelement_class;
570 GstBaseTransformClass *gstbasetransform_class;
572 gobject_class = (GObjectClass *) klass;
573 gstelement_class = (GstElementClass *) klass;
574 gstbasetransform_class = (GstBaseTransformClass *) klass;
576 gobject_class->set_property = gst_vulkan_view_convert_set_property;
577 gobject_class->get_property = gst_vulkan_view_convert_get_property;
579 g_object_class_install_property (gobject_class, PROP_INPUT_LAYOUT,
580 g_param_spec_enum ("input-mode-override",
581 "Input Multiview Mode Override",
582 "Override any input information about multiview layout",
583 GST_TYPE_VIDEO_MULTIVIEW_MODE,
584 GST_VIDEO_MULTIVIEW_MODE_NONE,
585 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
586 g_object_class_install_property (gobject_class, PROP_INPUT_FLAGS,
587 g_param_spec_flags ("input-flags-override",
588 "Input Multiview Flags Override",
589 "Override any input information about multiview layout flags",
590 GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
591 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
592 g_object_class_install_property (gobject_class, PROP_OUTPUT_LAYOUT,
593 g_param_spec_enum ("output-mode-override",
594 "Output Multiview Mode Override",
595 "Override automatic output mode selection for multiview layout",
596 GST_TYPE_VIDEO_MULTIVIEW_MODE, GST_VIDEO_MULTIVIEW_MODE_NONE,
597 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
598 g_object_class_install_property (gobject_class, PROP_OUTPUT_FLAGS,
599 g_param_spec_flags ("output-flags-override",
600 "Output Multiview Flags Override",
601 "Override automatic negotiation for output multiview layout flags",
602 GST_TYPE_VIDEO_MULTIVIEW_FLAGS, GST_VIDEO_MULTIVIEW_FLAGS_NONE,
603 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
604 g_object_class_install_property (gobject_class, PROP_OUTPUT_DOWNMIX_MODE,
605 g_param_spec_enum ("downmix-mode", "Mode for mono downmixed output",
606 "Output anaglyph type to generate when downmixing to mono",
607 GST_TYPE_VULKAN_STEREO_DOWNMIX, DEFAULT_DOWNMIX,
608 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
610 gst_element_class_set_metadata (gstelement_class, "Vulkan Uploader",
611 "Filter/Video/Convert", "A Vulkan View Convert",
612 "Matthew Waters <matthew@centricular.com>");
614 gst_element_class_add_static_pad_template (gstelement_class,
615 &gst_vulkan_sink_template);
616 gst_element_class_add_static_pad_template (gstelement_class,
617 &gst_vulkan_src_template);
619 gstbasetransform_class->start =
620 GST_DEBUG_FUNCPTR (gst_vulkan_view_convert_start);
621 gstbasetransform_class->stop =
622 GST_DEBUG_FUNCPTR (gst_vulkan_view_convert_stop);
623 gstbasetransform_class->transform_caps =
624 gst_vulkan_view_convert_transform_caps;
625 gstbasetransform_class->fixate_caps = gst_vulkan_view_convert_fixate_caps;
626 gstbasetransform_class->set_caps = gst_vulkan_view_convert_set_caps;
627 gstbasetransform_class->transform = gst_vulkan_view_convert_transform;
631 gst_vulkan_view_convert_init (GstVulkanViewConvert * conv)
633 conv->downmix_mode = DEFAULT_DOWNMIX;
635 conv->input_mode_override = GST_VIDEO_MULTIVIEW_MODE_NONE;
636 conv->input_flags_override = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
637 conv->output_mode_override = GST_VIDEO_MULTIVIEW_MODE_NONE;
638 conv->output_flags_override = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
642 gst_vulkan_view_convert_set_property (GObject * object, guint prop_id,
643 const GValue * value, GParamSpec * pspec)
645 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (object);
648 case PROP_INPUT_LAYOUT:
649 conv->input_mode_override = g_value_get_enum (value);
650 gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (conv));
652 case PROP_INPUT_FLAGS:
653 conv->input_flags_override = g_value_get_flags (value);
654 gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (conv));
656 case PROP_OUTPUT_LAYOUT:
657 conv->output_mode_override = g_value_get_enum (value);
658 gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (conv));
660 case PROP_OUTPUT_FLAGS:
661 conv->output_flags_override = g_value_get_flags (value);
662 gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (conv));
664 case PROP_OUTPUT_DOWNMIX_MODE:
665 conv->downmix_mode = g_value_get_enum (value);
668 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
674 gst_vulkan_view_convert_get_property (GObject * object, guint prop_id,
675 GValue * value, GParamSpec * pspec)
677 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (object);
680 case PROP_INPUT_LAYOUT:
681 g_value_set_enum (value, conv->input_mode_override);
683 case PROP_INPUT_FLAGS:
684 g_value_set_flags (value, conv->input_flags_override);
686 case PROP_OUTPUT_LAYOUT:
687 g_value_set_enum (value, conv->output_mode_override);
689 case PROP_OUTPUT_FLAGS:
690 g_value_set_flags (value, conv->output_flags_override);
692 case PROP_OUTPUT_DOWNMIX_MODE:
693 g_value_set_enum (value, conv->downmix_mode);
696 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
701 /* Function that can halve the value
702 * of ints, fractions, int/fraction ranges and lists of ints/fractions */
704 _halve_value (GValue * out, const GValue * in_value)
706 /* Fundamental fixed types first */
707 if (G_VALUE_HOLDS_INT (in_value)) {
708 g_value_init (out, G_TYPE_INT);
709 g_value_set_int (out, MAX (g_value_get_int (in_value) / 2, 1));
710 } else if (GST_VALUE_HOLDS_FRACTION (in_value)) {
712 num = gst_value_get_fraction_numerator (in_value);
713 den = gst_value_get_fraction_denominator (in_value);
714 g_value_init (out, GST_TYPE_FRACTION);
715 /* Don't adjust 'infinite' fractions */
716 if ((num != 1 || den != 2147483647) && (num != 2147483647 || den != 1)) {
717 /* FIXME - could do better approximation when den > G_MAXINT/2? */
718 den = den > G_MAXINT / 2 ? G_MAXINT : den * 2;
720 gst_value_set_fraction (out, num, den);
721 } else if (GST_VALUE_HOLDS_INT_RANGE (in_value)) {
722 gint range_min = gst_value_get_int_range_min (in_value);
723 gint range_max = gst_value_get_int_range_max (in_value);
724 gint range_step = gst_value_get_int_range_step (in_value);
725 g_value_init (out, GST_TYPE_INT_RANGE);
727 range_min = MAX (1, range_min / 2);
728 if (range_max != G_MAXINT)
729 range_max = MAX (1, range_max / 2);
730 gst_value_set_int_range_step (out, range_min,
731 range_max, MAX (1, range_step / 2));
732 } else if (GST_VALUE_HOLDS_FRACTION_RANGE (in_value)) {
733 GValue min_out = G_VALUE_INIT;
734 GValue max_out = G_VALUE_INIT;
735 const GValue *range_min = gst_value_get_fraction_range_min (in_value);
736 const GValue *range_max = gst_value_get_fraction_range_max (in_value);
737 _halve_value (&min_out, range_min);
738 _halve_value (&max_out, range_max);
739 g_value_init (out, GST_TYPE_FRACTION_RANGE);
740 gst_value_set_fraction_range (out, &min_out, &max_out);
741 g_value_unset (&min_out);
742 g_value_unset (&max_out);
743 } else if (GST_VALUE_HOLDS_LIST (in_value)) {
745 g_value_init (out, GST_TYPE_LIST);
746 for (i = 0; i < gst_value_list_get_size (in_value); i++) {
748 GValue tmp = G_VALUE_INIT;
750 entry = gst_value_list_get_value (in_value, i);
751 /* Random list values might not be the right type */
752 if (!_halve_value (&tmp, entry))
754 gst_value_list_append_and_take_value (out, &tmp);
766 static GstStructure *
767 _halve_structure_field (const GstStructure * in, const gchar * field_name)
770 const GValue *in_value = gst_structure_get_value (in, field_name);
771 GValue tmp = G_VALUE_INIT;
773 if (G_UNLIKELY (in_value == NULL))
774 return gst_structure_copy (in); /* Field doesn't exist, leave it as is */
776 if (!_halve_value (&tmp, in_value))
779 out = gst_structure_copy (in);
780 gst_structure_set_value (out, field_name, &tmp);
781 g_value_unset (&tmp);
786 /* Function that can double the value
787 * of ints, fractions, int/fraction ranges and lists of ints/fractions */
789 _double_value (GValue * out, const GValue * in_value)
791 /* Fundamental fixed types first */
792 if (G_VALUE_HOLDS_INT (in_value)) {
793 gint n = g_value_get_int (in_value);
794 g_value_init (out, G_TYPE_INT);
795 if (n <= G_MAXINT / 2)
796 g_value_set_int (out, n * 2);
798 g_value_set_int (out, G_MAXINT);
799 } else if (GST_VALUE_HOLDS_FRACTION (in_value)) {
801 num = gst_value_get_fraction_numerator (in_value);
802 den = gst_value_get_fraction_denominator (in_value);
803 g_value_init (out, GST_TYPE_FRACTION);
804 /* Don't adjust 'infinite' fractions */
805 if ((num != 1 || den != 2147483647) && (num != 2147483647 || den != 1)) {
806 /* FIXME - could do better approximation when num > G_MAXINT/2? */
807 num = num > G_MAXINT / 2 ? G_MAXINT : num * 2;
809 gst_value_set_fraction (out, num, den);
810 } else if (GST_VALUE_HOLDS_INT_RANGE (in_value)) {
811 gint range_min = gst_value_get_int_range_min (in_value);
812 gint range_max = gst_value_get_int_range_max (in_value);
813 gint range_step = gst_value_get_int_range_step (in_value);
814 if (range_min != 1) {
815 range_min = MIN (G_MAXINT / 2, range_min);
818 if (range_max != G_MAXINT) {
819 range_max = MIN (G_MAXINT / 2, range_max);
822 range_step = MIN (G_MAXINT / 2, range_step);
823 g_value_init (out, GST_TYPE_INT_RANGE);
824 gst_value_set_int_range_step (out, range_min, range_max, range_step);
825 } else if (GST_VALUE_HOLDS_FRACTION_RANGE (in_value)) {
826 GValue min_out = G_VALUE_INIT;
827 GValue max_out = G_VALUE_INIT;
828 const GValue *range_min = gst_value_get_fraction_range_min (in_value);
829 const GValue *range_max = gst_value_get_fraction_range_max (in_value);
830 _double_value (&min_out, range_min);
831 _double_value (&max_out, range_max);
832 g_value_init (out, GST_TYPE_FRACTION_RANGE);
833 gst_value_set_fraction_range (out, &min_out, &max_out);
834 g_value_unset (&min_out);
835 g_value_unset (&max_out);
836 } else if (GST_VALUE_HOLDS_LIST (in_value)) {
838 g_value_init (out, GST_TYPE_LIST);
839 for (i = 0; i < gst_value_list_get_size (in_value); i++) {
841 GValue tmp = G_VALUE_INIT;
843 entry = gst_value_list_get_value (in_value, i);
844 /* Random list values might not be the right type */
845 if (!_double_value (&tmp, entry))
847 gst_value_list_append_and_take_value (out, &tmp);
859 static GstStructure *
860 _double_structure_field (const GstStructure * in, const gchar * field_name)
863 const GValue *in_value = gst_structure_get_value (in, field_name);
864 GValue tmp = G_VALUE_INIT;
866 if (G_UNLIKELY (in_value == NULL))
867 return gst_structure_copy (in); /* Field doesn't exist, leave it as is */
869 if (!_double_value (&tmp, in_value))
872 out = gst_structure_copy (in);
873 gst_structure_set_value (out, field_name, &tmp);
874 g_value_unset (&tmp);
879 /* Return a copy of the caps with the requested field doubled in value/range */
881 _double_caps_field (const GstCaps * in, const gchar * field_name)
884 GstCaps *out = gst_caps_new_empty ();
886 for (i = 0; i < gst_caps_get_size (in); i++) {
887 const GstStructure *cur = gst_caps_get_structure (in, i);
888 GstCapsFeatures *f = gst_caps_get_features (in, i);
890 GstStructure *res = _double_structure_field (cur, field_name);
892 gst_caps_merge_structure_full (out, res,
893 f ? gst_caps_features_copy (f) : NULL);
899 /* Takes ownership of the input caps */
901 _expand_par_for_half_aspect (GstCaps * in, gboolean vertical_half_aspect)
903 guint mview_flags, mview_flags_mask;
907 out = gst_caps_new_empty ();
909 while (gst_caps_get_size (in) > 0) {
911 GstCapsFeatures *features;
913 features = gst_caps_get_features (in, 0);
915 features = gst_caps_features_copy (features);
917 s = gst_caps_steal_structure (in, 0);
919 if (!gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
920 &mview_flags_mask)) {
921 gst_caps_append_structure_full (out, s, features);
924 /* If the input doesn't care about the half-aspect flag, allow current PAR in either variant */
925 if ((mview_flags_mask & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) == 0) {
926 gst_caps_append_structure_full (out, s, features);
929 if (!gst_structure_has_field (s, "pixel-aspect-ratio")) {
930 /* No par field, dont-care the half-aspect flag */
931 gst_structure_set (s, "multiview-flags",
932 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
933 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
934 mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
935 gst_caps_append_structure_full (out, s, features);
939 /* Halve or double PAR base on inputs input specified. */
941 /* Append a copy with the half-aspect flag as-is */
942 tmp = gst_structure_copy (s);
943 out = gst_caps_merge_structure_full (out, tmp,
944 features ? gst_caps_features_copy (features) : NULL);
946 /* and then a copy inverted */
947 if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
948 /* Input is half-aspect. Double/halve the PAR, clear the flag */
949 if (vertical_half_aspect)
950 tmp = _halve_structure_field (s, "pixel-aspect-ratio");
952 tmp = _double_structure_field (s, "pixel-aspect-ratio");
954 gst_structure_set (tmp, "multiview-flags",
955 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
956 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
957 mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
959 if (vertical_half_aspect)
960 tmp = _double_structure_field (s, "pixel-aspect-ratio");
962 tmp = _halve_structure_field (s, "pixel-aspect-ratio");
964 gst_structure_set (tmp, "multiview-flags",
965 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
966 mview_flags | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
967 mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
970 out = gst_caps_merge_structure_full (out, tmp,
971 features ? gst_caps_features_copy (features) : NULL);
973 gst_structure_free (s);
975 gst_caps_features_free (features);
983 /* If input supports top-bottom or row-interleaved, we may halve height to mono frames.
984 * If input supports left-right, checkerboard, quincunx or column-interleaved,
985 * we may halve width to mono frames.
986 * For output of top-bottom or row-interleaved, we may double the mono height
987 * For output of left-right, checkerboard, quincunx or column-interleaved,
988 * we may double the mono width.
989 * In all cases, if input has half-aspect and output does not, we may double the PAR
990 * And if input does *not* have half-aspect flag and output does not, we may halve the PAR
993 _expand_structure (GstVulkanViewConvert * viewconvert,
994 GstCaps * out_caps, GstStructure * structure, GstCapsFeatures * features)
996 GstCaps *expanded_caps, *tmp;
998 const gchar *default_mview_mode_str = NULL;
999 guint mview_flags, mview_flags_mask;
1000 const GValue *in_modes;
1003 /* Empty caps to accumulate into */
1004 expanded_caps = gst_caps_new_empty ();
1006 /* First, set defaults if multiview flags are missing */
1007 default_mview_mode_str =
1008 gst_video_multiview_mode_to_caps_string (GST_VIDEO_MULTIVIEW_MODE_MONO);
1010 mview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
1011 mview_flags_mask = GST_FLAG_SET_MASK_EXACT;
1013 if (!gst_structure_has_field (structure, "multiview-mode")) {
1014 gst_structure_set (structure,
1015 "multiview-mode", G_TYPE_STRING, default_mview_mode_str, NULL);
1017 if (!gst_structure_has_field (structure, "multiview-flags")) {
1018 gst_structure_set (structure,
1019 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mview_flags,
1020 mview_flags_mask, NULL);
1022 gst_structure_get_flagset (structure, "multiview-flags",
1023 &mview_flags, &mview_flags_mask);
1026 in_modes = gst_structure_get_value (structure, "multiview-mode");
1027 mono_caps = gst_caps_new_empty ();
1028 if (gst_value_intersect (NULL, in_modes,
1029 gst_video_multiview_get_mono_modes ())) {
1030 GstStructure *new_struct = gst_structure_copy (structure);
1031 gst_structure_set_value (new_struct, "multiview-mode",
1032 gst_video_multiview_get_mono_modes ());
1033 /* Half-aspect makes no sense for mono or unpacked, get rid of it */
1034 if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
1035 gst_structure_set (new_struct, "multiview-flags",
1036 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1037 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
1038 mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
1040 gst_caps_append_structure_full (mono_caps, new_struct,
1041 features ? gst_caps_features_copy (features) : NULL);
1043 if (gst_value_intersect (NULL, in_modes,
1044 gst_video_multiview_get_unpacked_modes ())) {
1045 GstStructure *new_struct = gst_structure_copy (structure);
1047 gst_structure_set_value (new_struct, "multiview-mode",
1048 gst_video_multiview_get_mono_modes ());
1050 /* Half-aspect makes no sense for mono or unpacked, get rid of it */
1051 if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
1052 gst_structure_set (new_struct, "multiview-flags",
1053 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1054 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
1055 mview_flags_mask & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
1057 gst_caps_append_structure_full (mono_caps, new_struct,
1058 features ? gst_caps_features_copy (features) : NULL);
1061 if (gst_value_intersect (NULL, in_modes,
1062 gst_video_multiview_get_doubled_height_modes ())) {
1063 /* Append mono formats with height halved */
1064 GstStructure *new_struct = _halve_structure_field (structure, "height");
1065 gst_structure_set_value (new_struct, "multiview-mode",
1066 gst_video_multiview_get_mono_modes ());
1067 /* Normalise the half-aspect flag away */
1068 if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
1070 _halve_structure_field (new_struct, "pixel-aspect-ratio");
1071 gst_structure_set (structure, "multiview-flags",
1072 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1073 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
1074 mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
1075 gst_structure_free (new_struct);
1078 mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct,
1079 features ? gst_caps_features_copy (features) : NULL);
1081 if (gst_value_intersect (NULL, in_modes,
1082 gst_video_multiview_get_doubled_width_modes ())) {
1083 /* Append mono formats with width halved */
1084 GstStructure *new_struct = _halve_structure_field (structure, "width");
1085 gst_structure_set_value (new_struct, "multiview-mode",
1086 gst_video_multiview_get_mono_modes ());
1087 /* Normalise the half-aspect flag away */
1088 if (mview_flags & GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
1090 _double_structure_field (new_struct, "pixel-aspect-ratio");
1091 gst_structure_set (structure, "multiview-flags",
1092 GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1093 mview_flags & ~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT,
1094 mview_flags_mask | GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT, NULL);
1095 gst_structure_free (new_struct);
1098 mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct,
1099 features ? gst_caps_features_copy (features) : NULL);
1101 if (gst_value_intersect (NULL, in_modes,
1102 gst_video_multiview_get_doubled_size_modes ())) {
1103 /* Append checkerboard/doubled size formats with width & height halved */
1104 GstStructure *new_struct_w = _halve_structure_field (structure, "width");
1105 GstStructure *new_struct_wh =
1106 _halve_structure_field (new_struct_w, "height");
1107 gst_structure_free (new_struct_w);
1108 gst_structure_set_value (new_struct_wh, "multiview-mode",
1109 gst_video_multiview_get_mono_modes ());
1110 mono_caps = gst_caps_merge_structure_full (mono_caps, new_struct_wh,
1111 features ? gst_caps_features_copy (features) : NULL);
1114 /* Everything is normalised now, unset the flags we can change */
1115 /* Remove the views field, as these are all 'mono' modes
1116 * Need to do this before we expand caps back out to frame packed modes */
1117 for (i = 0; i < gst_caps_get_size (mono_caps); i++) {
1118 GstStructure *s = gst_caps_get_structure (mono_caps, i);
1119 gst_structure_remove_fields (s, "views", NULL);
1120 if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
1121 &mview_flags_mask)) {
1122 /* Preserve only the half-aspect and mixed-mono flags, for now.
1123 * The rest we can change */
1125 (GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT |
1126 GST_VIDEO_MULTIVIEW_FLAGS_MIXED_MONO);
1127 gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1128 mview_flags, mview_flags_mask, NULL);
1132 GST_TRACE_OBJECT (viewconvert,
1133 "Collected single-view caps %" GST_PTR_FORMAT, mono_caps);
1134 /* Put unpacked and mono modes first. We don't care about flags. Clear them */
1135 tmp = gst_caps_copy (mono_caps);
1136 for (i = 0; i < gst_caps_get_size (tmp); i++) {
1137 GstStructure *s = gst_caps_get_structure (tmp, i);
1138 gst_structure_remove_fields (s, "views", NULL);
1139 if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
1140 &mview_flags_mask)) {
1141 /* We can change any flags for mono modes - half-aspect and mixed-mono have no meaning */
1142 mview_flags_mask = 0;
1143 gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1144 mview_flags, mview_flags_mask, NULL);
1147 expanded_caps = gst_caps_merge (expanded_caps, tmp);
1149 /* Unpacked output modes have 2 views, for now */
1150 tmp = gst_caps_copy (mono_caps);
1151 gst_caps_set_value (tmp, "multiview-mode",
1152 gst_video_multiview_get_unpacked_modes ());
1153 for (i = 0; i < gst_caps_get_size (tmp); i++) {
1154 GstStructure *s = gst_caps_get_structure (tmp, i);
1155 gst_structure_set (s, "views", G_TYPE_INT, 2, NULL);
1156 if (gst_structure_get_flagset (s, "multiview-flags", &mview_flags,
1157 &mview_flags_mask)) {
1158 /* We can change any flags for unpacked modes - half-aspect and mixed-mono have no meaning */
1159 mview_flags_mask = 0;
1160 gst_structure_set (s, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
1161 mview_flags, mview_flags_mask, NULL);
1164 expanded_caps = gst_caps_merge (expanded_caps, tmp);
1166 /* Double height output modes */
1167 tmp = _double_caps_field (mono_caps, "height");
1168 gst_caps_set_value (tmp, "multiview-mode",
1169 gst_video_multiview_get_doubled_height_modes ());
1170 tmp = _expand_par_for_half_aspect (tmp, TRUE);
1172 expanded_caps = gst_caps_merge (expanded_caps, tmp);
1174 /* Double width output modes */
1175 tmp = _double_caps_field (mono_caps, "width");
1176 gst_caps_set_value (tmp, "multiview-mode",
1177 gst_video_multiview_get_doubled_width_modes ());
1178 tmp = _expand_par_for_half_aspect (tmp, FALSE);
1180 expanded_caps = gst_caps_merge (expanded_caps, tmp);
1182 /* Double size output modes */
1184 GstCaps *tmp_w = _double_caps_field (mono_caps, "width");
1185 tmp = _double_caps_field (tmp_w, "height");
1186 gst_caps_unref (tmp_w);
1187 gst_caps_set_value (tmp, "multiview-mode",
1188 gst_video_multiview_get_doubled_size_modes ());
1189 expanded_caps = gst_caps_merge (expanded_caps, tmp);
1192 /* We're done with the mono caps now */
1193 gst_caps_unref (mono_caps);
1195 GST_TRACE_OBJECT (viewconvert,
1196 "expanded transform caps now %" GST_PTR_FORMAT, expanded_caps);
1198 if (gst_caps_is_empty (expanded_caps)) {
1199 gst_caps_unref (expanded_caps);
1202 /* Really, we can rescale - so at this point we can append full-range
1203 * height/width/PAR as an unpreferred final option. */
1204 /* tmp = gst_caps_copy (expanded_caps);
1205 gst_caps_set_simple (tmp, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
1206 "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
1208 out_caps = gst_caps_merge (out_caps, expanded_caps);
1209 /* out_caps = gst_caps_merge (out_caps, tmp);*/
1214 _intersect_with_mview_mode (GstCaps * caps,
1215 GstVideoMultiviewMode mode, GstVideoMultiviewFlags flags)
1217 GstCaps *filter, *result;
1218 const gchar *caps_str;
1220 caps_str = gst_video_multiview_mode_to_caps_string (mode);
1222 filter = gst_caps_new_simple ("video/x-raw",
1223 "multiview-mode", G_TYPE_STRING,
1224 caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, flags,
1225 GST_FLAG_SET_MASK_EXACT, NULL);
1227 if (mode == GST_VIDEO_MULTIVIEW_MODE_SEPARATED ||
1228 mode == GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME)
1229 gst_caps_set_simple (filter, "views", G_TYPE_INT, 2, NULL);
1230 gst_caps_set_features (filter, 0, gst_caps_features_new_any ());
1232 GST_DEBUG ("Intersecting target caps %" GST_PTR_FORMAT
1233 " with caps %" GST_PTR_FORMAT, caps, filter);
1235 result = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
1236 gst_caps_unref (filter);
1241 _intersect_with_mview_modes (GstCaps * caps, const GValue * modes)
1243 GstCaps *filter, *result;
1245 filter = gst_caps_new_empty_simple ("video/x-raw");
1247 gst_caps_set_value (filter, "multiview-mode", modes);
1248 gst_caps_set_features (filter, 0, gst_caps_features_new_any ());
1250 GST_DEBUG ("Intersecting target caps %" GST_PTR_FORMAT
1251 " with caps %" GST_PTR_FORMAT, caps, filter);
1253 result = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
1254 gst_caps_unref (filter);
1259 gst_vulkan_view_convert_transform_caps (GstBaseTransform * bt,
1260 GstPadDirection direction, GstCaps * caps, GstCaps * filter)
1262 GstVulkanViewConvert *viewconvert = GST_VULKAN_VIEW_CONVERT (bt);
1263 GstCaps *base_caps =
1264 gst_static_pad_template_get_caps (&gst_vulkan_sink_template);
1265 GstCaps *out_caps, *tmp_caps;
1268 GST_DEBUG_OBJECT (viewconvert, "Direction %s "
1269 "input caps %" GST_PTR_FORMAT " filter %" GST_PTR_FORMAT,
1270 direction == GST_PAD_SINK ? "sink" : "src", caps, filter);
1272 /* We can only process VulkanImage caps, start from that */
1273 caps = gst_caps_intersect (caps, base_caps);
1274 gst_caps_unref (base_caps);
1276 /* Change input/output to the formats we can convert to/from,
1277 * but keep the original caps at the start - we will always prefer
1279 if (direction == GST_PAD_SINK) {
1280 out_caps = gst_caps_copy (caps);
1281 if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1282 GstVideoMultiviewMode mode = viewconvert->input_mode_override;
1283 GstVideoMultiviewFlags flags = viewconvert->input_flags_override;
1285 const gchar *caps_str = gst_video_multiview_mode_to_caps_string (mode);
1286 /* Coerce the input caps before transforming, so the sizes come out right */
1287 gst_caps_set_simple (out_caps, "multiview-mode", G_TYPE_STRING,
1288 caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, flags,
1289 GST_FLAG_SET_MASK_EXACT, NULL);
1292 out_caps = gst_caps_new_empty ();
1295 for (i = 0; i < gst_caps_get_size (caps); i++) {
1296 GstStructure *structure = gst_caps_get_structure (caps, i);
1297 GstCapsFeatures *features = gst_caps_get_features (caps, i);
1298 out_caps = _expand_structure (viewconvert, out_caps, structure, features);
1301 if (gst_caps_is_empty (out_caps))
1304 /* If we have an output mode override, limit things to that */
1305 if (direction == GST_PAD_SINK &&
1306 viewconvert->output_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1308 tmp_caps = _intersect_with_mview_mode (out_caps,
1309 viewconvert->output_mode_override, viewconvert->output_flags_override);
1311 gst_caps_unref (out_caps);
1312 out_caps = tmp_caps;
1313 } else if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1314 /* Prepend a copy of our preferred input caps in case the peer
1315 * can handle them */
1316 tmp_caps = _intersect_with_mview_mode (out_caps,
1317 viewconvert->input_mode_override, viewconvert->input_flags_override);
1318 out_caps = gst_caps_merge (out_caps, tmp_caps);
1320 if (direction == GST_PAD_SRC) {
1322 /* When generating input caps, we also need a copy of the mono caps
1323 * without multiview-mode or flags for backwards compat, at the end */
1324 tmp_caps = _intersect_with_mview_mode (caps,
1325 GST_VIDEO_MULTIVIEW_MODE_MONO, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
1326 if (!gst_caps_is_empty (tmp_caps)) {
1327 s = gst_caps_get_structure (tmp_caps, 0);
1328 gst_structure_remove_fields (s, "multiview-mode", "multiview-flags",
1330 out_caps = gst_caps_merge (out_caps, tmp_caps);
1332 gst_caps_unref (tmp_caps);
1335 gst_caps_unref (caps);
1337 GST_DEBUG_OBJECT (viewconvert, "Have caps %" GST_PTR_FORMAT
1338 " filtering with caps %" GST_PTR_FORMAT, out_caps, filter);
1342 gst_caps_intersect_full (filter, out_caps, GST_CAPS_INTERSECT_FIRST);
1343 gst_caps_unref (out_caps);
1347 GST_DEBUG_OBJECT (viewconvert, "Returning caps %" GST_PTR_FORMAT, out_caps);
1352 fixate_size (GstVulkanViewConvert * viewconvert,
1353 GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
1355 GstStructure *ins, *outs;
1356 const GValue *from_par, *to_par;
1357 GValue fpar = { 0, }, tpar = {
1360 othercaps = gst_caps_make_writable (othercaps);
1361 othercaps = gst_caps_truncate (othercaps);
1363 GST_DEBUG_OBJECT (viewconvert, "trying to fixate othercaps %" GST_PTR_FORMAT
1364 " based on caps %" GST_PTR_FORMAT, othercaps, caps);
1366 ins = gst_caps_get_structure (caps, 0);
1367 outs = gst_caps_get_structure (othercaps, 0);
1369 from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
1370 to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
1372 /* If we're fixating from the sinkpad we always set the PAR and
1373 * assume that missing PAR on the sinkpad means 1/1 and
1374 * missing PAR on the srcpad means undefined
1376 if (direction == GST_PAD_SINK) {
1378 g_value_init (&fpar, GST_TYPE_FRACTION);
1379 gst_value_set_fraction (&fpar, 1, 1);
1383 g_value_init (&tpar, GST_TYPE_FRACTION);
1384 gst_value_set_fraction (&tpar, 1, 1);
1389 g_value_init (&tpar, GST_TYPE_FRACTION);
1390 gst_value_set_fraction (&tpar, 1, 1);
1393 gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
1397 g_value_init (&fpar, GST_TYPE_FRACTION);
1398 gst_value_set_fraction (&fpar, 1, 1);
1403 /* we have both PAR but they might not be fixated */
1405 gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
1407 gint from_dar_n, from_dar_d;
1410 /* from_par should be fixed */
1411 g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
1413 from_par_n = gst_value_get_fraction_numerator (from_par);
1414 from_par_d = gst_value_get_fraction_denominator (from_par);
1416 gst_structure_get_int (ins, "width", &from_w);
1417 gst_structure_get_int (ins, "height", &from_h);
1419 gst_structure_get_int (outs, "width", &w);
1420 gst_structure_get_int (outs, "height", &h);
1422 /* if both width and height are already fixed, we can't do anything
1423 * about it anymore */
1425 GST_DEBUG_OBJECT (viewconvert,
1426 "dimensions already set to %dx%d, not fixating", w, h);
1427 if (!gst_value_is_fixed (to_par)) {
1428 GST_DEBUG_OBJECT (viewconvert, "fixating to_par to %dx%d", 1, 1);
1429 if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
1430 gst_structure_fixate_field_nearest_fraction (outs,
1431 "pixel-aspect-ratio", 1, 1);
1436 /* Calculate input DAR */
1437 if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
1438 &from_dar_n, &from_dar_d)) {
1439 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1440 ("Error calculating the output scaled size - integer overflow"));
1444 GST_DEBUG_OBJECT (viewconvert, "Input DAR is %d/%d", from_dar_n,
1447 /* If either width or height are fixed there's not much we
1448 * can do either except choosing a height or width and PAR
1449 * that matches the DAR as good as possible
1454 GST_DEBUG_OBJECT (viewconvert, "height is fixed (%d)", h);
1456 if (!gst_value_is_fixed (to_par)) {
1457 /* (shortcut) copy-paste (??) of videoscale seems to aim for 1/1,
1458 * so let's make it so ...
1459 * especially if following code assumes fixed */
1460 GST_DEBUG_OBJECT (viewconvert, "fixating to_par to 1x1");
1461 gst_structure_fixate_field_nearest_fraction (outs,
1462 "pixel-aspect-ratio", 1, 1);
1463 to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
1466 /* PAR is fixed, choose the height that is nearest to the
1467 * height with the same DAR */
1468 to_par_n = gst_value_get_fraction_numerator (to_par);
1469 to_par_d = gst_value_get_fraction_denominator (to_par);
1471 GST_DEBUG_OBJECT (viewconvert, "PAR is fixed %d/%d", to_par_n, to_par_d);
1473 if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
1474 to_par_n, &num, &den)) {
1475 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1476 ("Error calculating the output scaled size - integer overflow"));
1480 w = (guint) gst_util_uint64_scale_int (h, num, den);
1481 gst_structure_fixate_field_nearest_int (outs, "width", w);
1487 GST_DEBUG_OBJECT (viewconvert, "width is fixed (%d)", w);
1489 if (!gst_value_is_fixed (to_par)) {
1490 /* (shortcut) copy-paste (??) of videoscale seems to aim for 1/1,
1491 * so let's make it so ...
1492 * especially if following code assumes fixed */
1493 GST_DEBUG_OBJECT (viewconvert, "fixating to_par to 1x1");
1494 gst_structure_fixate_field_nearest_fraction (outs,
1495 "pixel-aspect-ratio", 1, 1);
1496 to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
1499 /* PAR is fixed, choose the height that is nearest to the
1500 * height with the same DAR */
1501 to_par_n = gst_value_get_fraction_numerator (to_par);
1502 to_par_d = gst_value_get_fraction_denominator (to_par);
1504 GST_DEBUG_OBJECT (viewconvert, "PAR is fixed %d/%d", to_par_n, to_par_d);
1506 if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
1507 to_par_n, &num, &den)) {
1508 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1509 ("Error calculating the output scaled size - integer overflow"));
1513 h = (guint) gst_util_uint64_scale_int (w, den, num);
1514 gst_structure_fixate_field_nearest_int (outs, "height", h);
1517 } else if (gst_value_is_fixed (to_par)) {
1519 gint set_h, set_w, f_h, f_w;
1521 to_par_n = gst_value_get_fraction_numerator (to_par);
1522 to_par_d = gst_value_get_fraction_denominator (to_par);
1524 /* Calculate scale factor for the PAR change */
1525 if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
1526 to_par_d, &num, &den)) {
1527 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1528 ("Error calculating the output scaled size - integer overflow"));
1532 /* Try to keep the input height */
1533 tmp = gst_structure_copy (outs);
1534 gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
1535 gst_structure_get_int (tmp, "height", &set_h);
1537 /* This might have failed but try to scale the width
1538 * to keep the DAR nonetheless */
1539 w = (guint) gst_util_uint64_scale_int (set_h, num, den);
1540 gst_structure_fixate_field_nearest_int (tmp, "width", w);
1541 gst_structure_get_int (tmp, "width", &set_w);
1542 gst_structure_free (tmp);
1544 /* We kept the DAR and the height is nearest to the original height */
1546 gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
1547 G_TYPE_INT, set_h, NULL);
1554 /* If the former failed, try to keep the input width at least */
1555 tmp = gst_structure_copy (outs);
1556 gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
1557 gst_structure_get_int (tmp, "width", &set_w);
1559 /* This might have failed but try to scale the width
1560 * to keep the DAR nonetheless */
1561 h = (guint) gst_util_uint64_scale_int (set_w, den, num);
1562 gst_structure_fixate_field_nearest_int (tmp, "height", h);
1563 gst_structure_get_int (tmp, "height", &set_h);
1564 gst_structure_free (tmp);
1566 /* We kept the DAR and the width is nearest to the original width */
1568 gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
1569 G_TYPE_INT, set_h, NULL);
1573 /* If all this failed, keep the height that was nearest to the original
1574 * height and the nearest possible width. This changes the DAR but
1575 * there's not much else to do here.
1577 gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
1582 gint set_h, set_w, set_par_n, set_par_d, tmp2;
1584 /* width, height and PAR are not fixed */
1586 /* First try to keep the height and width as good as possible
1588 tmp = gst_structure_copy (outs);
1589 gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
1590 gst_structure_get_int (tmp, "height", &set_h);
1591 gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
1592 gst_structure_get_int (tmp, "width", &set_w);
1594 if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
1595 &to_par_n, &to_par_d)) {
1596 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1597 ("Error calculating the output scaled size - integer overflow"));
1598 gst_structure_free (tmp);
1602 if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
1603 gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
1604 gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
1605 to_par_n, to_par_d);
1606 gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
1608 gst_structure_free (tmp);
1610 if (set_par_n == to_par_n && set_par_d == to_par_d) {
1611 gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
1612 G_TYPE_INT, set_h, NULL);
1614 if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
1615 set_par_n != set_par_d)
1616 gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
1617 set_par_n, set_par_d, NULL);
1621 /* Otherwise try to scale width to keep the DAR with the set
1623 if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
1624 set_par_n, &num, &den)) {
1625 GST_ELEMENT_ERROR (viewconvert, CORE, NEGOTIATION, (NULL),
1626 ("Error calculating the output scaled size - integer overflow"));
1630 w = (guint) gst_util_uint64_scale_int (set_h, num, den);
1631 tmp = gst_structure_copy (outs);
1632 gst_structure_fixate_field_nearest_int (tmp, "width", w);
1633 gst_structure_get_int (tmp, "width", &tmp2);
1634 gst_structure_free (tmp);
1637 gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
1638 G_TYPE_INT, set_h, NULL);
1639 if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
1640 set_par_n != set_par_d)
1641 gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
1642 set_par_n, set_par_d, NULL);
1646 /* ... or try the same with the height */
1647 h = (guint) gst_util_uint64_scale_int (set_w, den, num);
1648 tmp = gst_structure_copy (outs);
1649 gst_structure_fixate_field_nearest_int (tmp, "height", h);
1650 gst_structure_get_int (tmp, "height", &tmp2);
1651 gst_structure_free (tmp);
1654 gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
1655 G_TYPE_INT, tmp2, NULL);
1656 if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
1657 set_par_n != set_par_d)
1658 gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
1659 set_par_n, set_par_d, NULL);
1663 /* If all fails we can't keep the DAR and take the nearest values
1664 * for everything from the first try */
1665 gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
1666 G_TYPE_INT, set_h, NULL);
1667 if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
1668 set_par_n != set_par_d)
1669 gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
1670 set_par_n, set_par_d, NULL);
1675 othercaps = gst_caps_fixate (othercaps);
1677 GST_DEBUG_OBJECT (viewconvert, "fixated othercaps to %" GST_PTR_FORMAT,
1680 if (from_par == &fpar)
1681 g_value_unset (&fpar);
1682 if (to_par == &tpar)
1683 g_value_unset (&tpar);
1689 gst_vulkan_view_convert_fixate_caps (GstBaseTransform * bt,
1690 GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
1692 GstVulkanViewConvert *viewconvert = GST_VULKAN_VIEW_CONVERT (bt);
1693 GstVideoMultiviewMode mode = viewconvert->output_mode_override;
1694 GstVideoMultiviewFlags flags = viewconvert->output_flags_override;
1697 othercaps = gst_caps_make_writable (othercaps);
1698 GST_LOG_OBJECT (viewconvert, "dir %s fixating %" GST_PTR_FORMAT
1699 " against caps %" GST_PTR_FORMAT,
1700 direction == GST_PAD_SINK ? "sink" : "src", othercaps, caps);
1702 if (direction == GST_PAD_SINK) {
1703 if (mode != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1704 /* We have a requested output mode and are fixating source caps, try and enforce it */
1705 GST_DEBUG_OBJECT (bt, "fixating multiview mode using the configured "
1706 "output override mode 0x%x and flags 0x%x", mode, flags);
1707 tmp = _intersect_with_mview_mode (othercaps, mode, flags);
1708 gst_caps_unref (othercaps);
1711 /* See if we can do passthrough */
1714 if (gst_video_info_from_caps (&info, caps)) {
1715 GstVideoMultiviewMode mode = GST_VIDEO_INFO_MULTIVIEW_MODE (&info);
1716 GstVideoMultiviewFlags flags = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&info);
1718 if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1719 mode = viewconvert->input_mode_override;
1720 flags = viewconvert->input_flags_override;
1723 tmp = _intersect_with_mview_mode (othercaps, mode, flags);
1724 if (gst_caps_is_empty (tmp)) {
1725 /* Nope, we can't pass our input caps downstream */
1726 gst_caps_unref (tmp);
1728 GST_DEBUG_OBJECT (bt, "can configure a passthrough multiview mode "
1729 "using the input override mode 0x%x and flags 0x%x", mode, flags);
1730 gst_caps_unref (othercaps);
1736 /* Prefer an unpacked mode for output */
1738 _intersect_with_mview_modes (othercaps,
1739 gst_video_multiview_get_unpacked_modes ());
1740 if (!gst_caps_is_empty (tmp)) {
1741 GST_DEBUG_OBJECT (bt, "preferring an unpacked multiview mode");
1742 gst_caps_unref (othercaps);
1745 gst_caps_unref (tmp);
1748 } else if (viewconvert->input_mode_override != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1749 /* See if we can coerce the caps into matching input mode/flags,
1750 * in case it doesn't care at all, but allow it not to too */
1751 mode = viewconvert->input_mode_override;
1752 flags = viewconvert->input_flags_override;
1753 tmp = _intersect_with_mview_mode (othercaps, mode, flags);
1754 if (gst_caps_is_empty (tmp)) {
1755 /* Nope, we can pass our input caps downstream */
1756 gst_caps_unref (tmp);
1758 GST_DEBUG_OBJECT (bt, "can configure a passthrough multiview mode "
1759 "using the input override mode 0x%x and flags 0x%x", mode, flags);
1760 gst_caps_unref (othercaps);
1766 othercaps = fixate_size (viewconvert, direction, caps, othercaps);
1767 othercaps = gst_caps_fixate (othercaps);
1769 GST_DEBUG_OBJECT (viewconvert, "dir %s fixated to %" GST_PTR_FORMAT
1770 " against caps %" GST_PTR_FORMAT,
1771 direction == GST_PAD_SINK ? "sink" : "src", othercaps, caps);
1776 create_descriptor_set_layout (GstVulkanViewConvert * conv, GError ** error)
1778 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (conv);
1779 VkDescriptorSetLayoutBinding bindings[GST_VIDEO_MAX_PLANES * 2 + 1] =
1781 VkDescriptorSetLayoutCreateInfo layout_info;
1782 VkDescriptorSetLayout descriptor_set_layout;
1783 int descriptor_n = 0;
1788 bindings[descriptor_n++] = (VkDescriptorSetLayoutBinding) {
1790 .descriptorCount = 1,
1791 .descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
1792 .pImmutableSamplers = NULL,
1793 .stageFlags = VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT
1795 for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&vfilter->in_info) * 2; i++) {
1796 bindings[descriptor_n++] = (VkDescriptorSetLayoutBinding) {
1798 .descriptorCount = 1,
1799 .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
1800 .pImmutableSamplers = NULL,
1801 .stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT
1805 layout_info = (VkDescriptorSetLayoutCreateInfo) {
1806 .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
1808 .bindingCount = descriptor_n,
1809 .pBindings = bindings
1814 vkCreateDescriptorSetLayout (vfilter->device->device, &layout_info,
1815 NULL, &descriptor_set_layout);
1816 if (gst_vulkan_error_to_g_error (err, error,
1817 "vkCreateDescriptorSetLayout") < 0) {
1821 conv->quad->descriptor_set_layout =
1822 gst_vulkan_handle_new_wrapped (vfilter->device,
1823 GST_VULKAN_HANDLE_TYPE_DESCRIPTOR_SET_LAYOUT,
1824 (GstVulkanHandleTypedef) descriptor_set_layout,
1825 gst_vulkan_handle_free_descriptor_set_layout, NULL);
1831 gst_vulkan_view_convert_start (GstBaseTransform * bt)
1833 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (bt);
1834 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
1835 GstVulkanHandle *vert, *frag;
1837 if (!GST_BASE_TRANSFORM_CLASS (parent_class)->start (bt))
1840 conv->quad = gst_vulkan_full_screen_quad_new (vfilter->queue);
1843 gst_vulkan_create_shader (vfilter->device, identity_vert,
1844 identity_vert_size, NULL))) {
1848 gst_vulkan_create_shader (vfilter->device, view_convert_frag,
1849 view_convert_frag_size, NULL))) {
1850 gst_vulkan_handle_unref (vert);
1854 if (!gst_vulkan_full_screen_quad_set_shaders (conv->quad, vert, frag)) {
1855 gst_vulkan_handle_unref (vert);
1856 gst_vulkan_handle_unref (frag);
1859 gst_vulkan_handle_unref (vert);
1860 gst_vulkan_handle_unref (frag);
1866 gst_vulkan_view_convert_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
1869 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (bt);
1870 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
1872 if (!GST_BASE_TRANSFORM_CLASS (parent_class)->set_caps (bt, in_caps,
1876 if (!gst_vulkan_full_screen_quad_set_info (conv->quad, &vfilter->in_info,
1877 &vfilter->out_info))
1884 gst_vulkan_view_convert_stop (GstBaseTransform * bt)
1886 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
1888 gst_clear_object (&conv->quad);
1890 gst_memory_unref (conv->uniform);
1891 conv->uniform = NULL;
1893 return GST_BASE_TRANSFORM_CLASS (parent_class)->stop (bt);
1896 static GstFlowReturn
1897 gst_vulkan_view_convert_transform (GstBaseTransform * bt, GstBuffer * inbuf,
1900 GstVulkanVideoFilter *vfilter = GST_VULKAN_VIDEO_FILTER (bt);
1901 GstVulkanViewConvert *conv = GST_VULKAN_VIEW_CONVERT (bt);
1902 GstVulkanImageView *in_img_views[GST_VIDEO_MAX_PLANES] = { NULL, };
1903 GstVulkanImageView *out_img_views[GST_VIDEO_MAX_PLANES] = { NULL, };
1904 GstVulkanCommandBuffer *cmd_buf = NULL;
1905 GstVulkanFence *fence = NULL;
1906 GError *error = NULL;
1910 if (!gst_vulkan_full_screen_quad_set_input_buffer (conv->quad, inbuf, &error))
1912 if (!gst_vulkan_full_screen_quad_set_output_buffer (conv->quad, outbuf,
1916 fence = gst_vulkan_device_create_fence (vfilter->device, &error);
1920 for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&conv->quad->in_info); i++) {
1921 GstMemory *img_mem = gst_buffer_peek_memory (inbuf, i);
1922 if (!gst_is_vulkan_image_memory (img_mem)) {
1923 g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
1924 "Input memory must be a GstVulkanImageMemory");
1928 gst_vulkan_get_or_create_image_view ((GstVulkanImageMemory *) img_mem);
1929 gst_vulkan_trash_list_add (conv->quad->trash_list,
1930 gst_vulkan_trash_list_acquire (conv->quad->trash_list, fence,
1931 gst_vulkan_trash_mini_object_unref,
1932 (GstMiniObject *) in_img_views[i]));
1934 for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&conv->quad->out_info); i++) {
1935 GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
1936 if (!gst_is_vulkan_image_memory (mem)) {
1937 g_set_error_literal (&error, GST_VULKAN_ERROR, GST_VULKAN_FAILED,
1938 "Output memory must be a GstVulkanImageMemory");
1942 gst_vulkan_get_or_create_image_view ((GstVulkanImageMemory *) mem);
1943 gst_vulkan_trash_list_add (conv->quad->trash_list,
1944 gst_vulkan_trash_list_acquire (conv->quad->trash_list, fence,
1945 gst_vulkan_trash_mini_object_unref,
1946 (GstMiniObject *) out_img_views[i]));
1950 GstMemory *uniforms = get_uniforms (conv, in_img_views, out_img_views);
1951 if (!gst_vulkan_full_screen_quad_set_uniform_buffer (conv->quad, uniforms,
1954 gst_memory_unref (uniforms);
1957 if (!conv->quad->descriptor_set_layout)
1958 if (!create_descriptor_set_layout (conv, &error))
1961 if (!gst_vulkan_full_screen_quad_prepare_draw (conv->quad, fence, &error))
1965 gst_vulkan_command_pool_create (conv->quad->cmd_pool, &error)))
1969 VkCommandBufferBeginInfo cmd_buf_info = { 0, };
1972 cmd_buf_info = (VkCommandBufferBeginInfo) {
1973 .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
1975 .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
1976 .pInheritanceInfo = NULL
1980 gst_vulkan_command_buffer_lock (cmd_buf);
1981 err = vkBeginCommandBuffer (cmd_buf->cmd, &cmd_buf_info);
1982 if (gst_vulkan_error_to_g_error (err, &error, "vkBeginCommandBuffer") < 0)
1986 update_descriptor_set (conv, in_img_views);
1987 if (!gst_vulkan_full_screen_quad_fill_command_buffer (conv->quad, cmd_buf,
1991 err = vkEndCommandBuffer (cmd_buf->cmd);
1992 gst_vulkan_command_buffer_unlock (cmd_buf);
1993 if (gst_vulkan_error_to_g_error (err, &error, "vkEndCommandBuffer") < 0)
1996 if (!gst_vulkan_full_screen_quad_submit (conv->quad, cmd_buf, fence, &error))
1999 gst_vulkan_fence_unref (fence);
2005 gst_vulkan_command_buffer_unlock (cmd_buf);
2006 gst_vulkan_command_buffer_unref (cmd_buf);
2010 gst_clear_mini_object ((GstMiniObject **) & fence);
2012 GST_ELEMENT_ERROR (bt, LIBRARY, FAILED, ("%s", error->message), (NULL));
2013 g_clear_error (&error);
2014 return GST_FLOW_ERROR;