FFmpeg coverage

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1			/*
2			* This file is part of FFmpeg.
3			*
4			* FFmpeg is free software; you can redistribute it and/or
5			* modify it under the terms of the GNU Lesser General Public
6			* License as published by the Free Software Foundation; either
7			* version 2.1 of the License, or (at your option) any later version.
8			*
9			* FFmpeg is distributed in the hope that it will be useful,
10			* but WITHOUT ANY WARRANTY; without even the implied warranty of
11			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12			* Lesser General Public License for more details.
13			*
14			* You should have received a copy of the GNU Lesser General Public
15			* License along with FFmpeg; if not, write to the Free Software
16			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17			*/
18
19			#define VK_NO_PROTOTYPES
20			#define VK_ENABLE_BETA_EXTENSIONS
21
22			#include "config.h"
23			#include "ffplay_renderer.h"
24
25			#if (SDL_VERSION_ATLEAST(2, 0, 6) && CONFIG_LIBPLACEBO)
26			/* Get PL_API_VER */
27			#include <libplacebo/config.h>
28			#define HAVE_VULKAN_RENDERER (PL_API_VER >= 278)
29			#else
30			#define HAVE_VULKAN_RENDERER 0
31			#endif
32
33			#if HAVE_VULKAN_RENDERER
34
35			#if defined(_WIN32) && !defined(VK_USE_PLATFORM_WIN32_KHR)
36			#define VK_USE_PLATFORM_WIN32_KHR
37			#endif
38
39			#include <libplacebo/vulkan.h>
40			#include <libplacebo/utils/frame_queue.h>
41			#include <libplacebo/utils/libav.h>
42			#include <SDL_vulkan.h>
43
44			#include "libavutil/bprint.h"
45			#include "libavutil/mem.h"
46
47			#endif
48
49			struct VkRenderer {
50			const AVClass *class;
51
52			int (*create)(VkRenderer *renderer, SDL_Window *window, AVDictionary *dict);
53
54			int (*get_hw_dev)(VkRenderer *renderer, AVBufferRef **dev);
55
56			int (*display)(VkRenderer *renderer, AVFrame *frame);
57
58			int (*resize)(VkRenderer *renderer, int width, int height);
59
60			void (*destroy)(VkRenderer *renderer);
61			};
62
63			#if HAVE_VULKAN_RENDERER
64
65			typedef struct RendererContext {
66			VkRenderer api;
67
68			// Can be NULL when vulkan instance is created by avutil
69			pl_vk_inst placebo_instance;
70			pl_vulkan placebo_vulkan;
71			pl_swapchain swapchain;
72			VkSurfaceKHR vk_surface;
73			pl_renderer renderer;
74			pl_tex tex[4];
75
76			pl_log vk_log;
77
78			AVBufferRef *hw_device_ref;
79			AVBufferRef *hw_frame_ref;
80			enum AVPixelFormat *transfer_formats;
81			AVHWFramesConstraints *constraints;
82
83			PFN_vkGetInstanceProcAddr get_proc_addr;
84			// This field is a copy from pl_vk_inst->instance or hw_device_ref instance.
85			VkInstance inst;
86
87			AVFrame *vk_frame;
88			} RendererContext;
89
90			static void vk_log_cb(void *log_priv, enum pl_log_level level,
91			const char *msg)
92			{
93			static const int level_map[] = {
94			AV_LOG_QUIET,
95			AV_LOG_FATAL,
96			AV_LOG_ERROR,
97			AV_LOG_WARNING,
98			AV_LOG_INFO,
99			AV_LOG_DEBUG,
100			AV_LOG_TRACE,
101			};
102
103			if (level > 0 && level < FF_ARRAY_ELEMS(level_map))
104			av_log(log_priv, level_map[level], "%s\n", msg);
105			}
106
107			// Should keep sync with optional_device_exts inside hwcontext_vulkan.c
108			static const char *optional_device_exts[] = {
109			/* Misc or required by other extensions */
110			VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME,
111			VK_KHR_PUSH_DESCRIPTOR_EXTENSION_NAME,
112			VK_KHR_SAMPLER_YCBCR_CONVERSION_EXTENSION_NAME,
113			VK_EXT_DESCRIPTOR_BUFFER_EXTENSION_NAME,
114			VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME,
115			VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME,
116			VK_KHR_COOPERATIVE_MATRIX_EXTENSION_NAME,
117
118			/* Imports/exports */
119			VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,
120			VK_EXT_EXTERNAL_MEMORY_DMA_BUF_EXTENSION_NAME,
121			VK_EXT_IMAGE_DRM_FORMAT_MODIFIER_EXTENSION_NAME,
122			VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME,
123			VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME,
124			#ifdef _WIN32
125			VK_KHR_EXTERNAL_MEMORY_WIN32_EXTENSION_NAME,
126			VK_KHR_EXTERNAL_SEMAPHORE_WIN32_EXTENSION_NAME,
127			#endif
128
129			/* Video encoding/decoding */
130			VK_KHR_VIDEO_QUEUE_EXTENSION_NAME,
131			VK_KHR_VIDEO_DECODE_QUEUE_EXTENSION_NAME,
132			VK_KHR_VIDEO_DECODE_H264_EXTENSION_NAME,
133			VK_KHR_VIDEO_DECODE_H265_EXTENSION_NAME,
134			"VK_MESA_video_decode_av1",
135			};
136
137			static inline int enable_debug(const AVDictionary *opt)
138			{
139			AVDictionaryEntry *entry = av_dict_get(opt, "debug", NULL, 0);
140			int debug = entry && strtol(entry->value, NULL, 10);
141			return debug;
142			}
143
144			static void hwctx_lock_queue(void *priv, uint32_t qf, uint32_t qidx)
145			{
146			AVHWDeviceContext *avhwctx = priv;
147			const AVVulkanDeviceContext *hwctx = avhwctx->hwctx;
148			hwctx->lock_queue(avhwctx, qf, qidx);
149			}
150
151			static void hwctx_unlock_queue(void *priv, uint32_t qf, uint32_t qidx)
152			{
153			AVHWDeviceContext *avhwctx = priv;
154			const AVVulkanDeviceContext *hwctx = avhwctx->hwctx;
155			hwctx->unlock_queue(avhwctx, qf, qidx);
156			}
157
158			static int add_instance_extension(const char **ext, unsigned num_ext,
159			const AVDictionary *opt,
160			AVDictionary **dict)
161			{
162			const char *inst_ext_key = "instance_extensions";
163			AVDictionaryEntry *entry;
164			AVBPrint buf;
165			char *ext_list = NULL;
166			int ret;
167
168			av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
169			for (int i = 0; i < num_ext; i++) {
170			if (i)
171			av_bprintf(&buf, "+%s", ext[i]);
172			else
173			av_bprintf(&buf, "%s", ext[i]);
174			}
175
176			entry = av_dict_get(opt, inst_ext_key, NULL, 0);
177			if (entry && entry->value && entry->value[0]) {
178			if (num_ext)
179			av_bprintf(&buf, "+");
180			av_bprintf(&buf, "%s", entry->value);
181			}
182
183			ret = av_bprint_finalize(&buf, &ext_list);
184			if (ret < 0)
185			return ret;
186			return av_dict_set(dict, inst_ext_key, ext_list, AV_DICT_DONT_STRDUP_VAL);
187			}
188
189			static int add_device_extension(const AVDictionary *opt,
190			AVDictionary **dict)
191			{
192			const char *dev_ext_key = "device_extensions";
193			AVDictionaryEntry *entry;
194			AVBPrint buf;
195			char *ext_list = NULL;
196			int ret;
197
198			av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
199			av_bprintf(&buf, "%s", VK_KHR_SWAPCHAIN_EXTENSION_NAME);
200			for (int i = 0; i < pl_vulkan_num_recommended_extensions; i++)
201			av_bprintf(&buf, "+%s", pl_vulkan_recommended_extensions[i]);
202
203			entry = av_dict_get(opt, dev_ext_key, NULL, 0);
204			if (entry && entry->value && entry->value[0])
205			av_bprintf(&buf, "+%s", entry->value);
206
207			ret = av_bprint_finalize(&buf, &ext_list);
208			if (ret < 0)
209			return ret;
210			return av_dict_set(dict, dev_ext_key, ext_list, AV_DICT_DONT_STRDUP_VAL);
211			}
212
213			static const char *select_device(const AVDictionary *opt)
214			{
215			const AVDictionaryEntry *entry;
216
217			entry = av_dict_get(opt, "device", NULL, 0);
218			if (entry)
219			return entry->value;
220			return NULL;
221			}
222
223			static int create_vk_by_hwcontext(VkRenderer *renderer,
224			const char **ext, unsigned num_ext,
225			const AVDictionary *opt)
226			{
227			RendererContext *ctx = (RendererContext *) renderer;
228			AVHWDeviceContext *dev;
229			AVVulkanDeviceContext *hwctx;
230			AVDictionary *dict = NULL;
231			int ret;
232
233			ret = add_instance_extension(ext, num_ext, opt, &dict);
234			if (ret < 0)
235			return ret;
236			ret = add_device_extension(opt, &dict);
237			if (ret) {
238			av_dict_free(&dict);
239			return ret;
240			}
241
242			ret = av_hwdevice_ctx_create(&ctx->hw_device_ref, AV_HWDEVICE_TYPE_VULKAN,
243			select_device(opt), dict, 0);
244			av_dict_free(&dict);
245			if (ret < 0)
246			return ret;
247
248			dev = (AVHWDeviceContext *) ctx->hw_device_ref->data;
249			hwctx = dev->hwctx;
250
251			// There is no way to pass SDL GetInstanceProcAddr to hwdevice.
252			// Check the result and return error if they don't match.
253			if (hwctx->get_proc_addr != SDL_Vulkan_GetVkGetInstanceProcAddr()) {
254			av_log(renderer, AV_LOG_ERROR,
255			"hwdevice and SDL use different get_proc_addr. "
256			"Try -vulkan_params create_by_placebo=1\n");
257			return AVERROR_PATCHWELCOME;
258			}
259
260			ctx->get_proc_addr = hwctx->get_proc_addr;
261			ctx->inst = hwctx->inst;
262			ctx->placebo_vulkan = pl_vulkan_import(ctx->vk_log,
263			pl_vulkan_import_params(
264			.instance = hwctx->inst,
265			.get_proc_addr = hwctx->get_proc_addr,
266			.phys_device = hwctx->phys_dev,
267			.device = hwctx->act_dev,
268			.extensions = hwctx->enabled_dev_extensions,
269			.num_extensions = hwctx->nb_enabled_dev_extensions,
270			.features = &hwctx->device_features,
271			.lock_queue = hwctx_lock_queue,
272			.unlock_queue = hwctx_unlock_queue,
273			.queue_ctx = dev,
274			.queue_graphics = {
275			.index = hwctx->queue_family_index,
276			.count = hwctx->nb_graphics_queues,
277			},
278			.queue_compute = {
279			.index = hwctx->queue_family_comp_index,
280			.count = hwctx->nb_comp_queues,
281			},
282			.queue_transfer = {
283			.index = hwctx->queue_family_tx_index,
284			.count = hwctx->nb_tx_queues,
285			},
286			));
287			if (!ctx->placebo_vulkan)
288			return AVERROR_EXTERNAL;
289
290			return 0;
291			}
292
293			static void placebo_lock_queue(struct AVHWDeviceContext *dev_ctx,
294			uint32_t queue_family, uint32_t index)
295			{
296			RendererContext *ctx = dev_ctx->user_opaque;
297			pl_vulkan vk = ctx->placebo_vulkan;
298			vk->lock_queue(vk, queue_family, index);
299			}
300
301			static void placebo_unlock_queue(struct AVHWDeviceContext *dev_ctx,
302			uint32_t queue_family,
303			uint32_t index)
304			{
305			RendererContext *ctx = dev_ctx->user_opaque;
306			pl_vulkan vk = ctx->placebo_vulkan;
307			vk->unlock_queue(vk, queue_family, index);
308			}
309
310			static int get_decode_queue(VkRenderer *renderer, int *index, int *count)
311			{
312			RendererContext *ctx = (RendererContext *) renderer;
313			VkQueueFamilyProperties *queue_family_prop = NULL;
314			uint32_t num_queue_family_prop = 0;
315			PFN_vkGetPhysicalDeviceQueueFamilyProperties get_queue_family_prop;
316			PFN_vkGetInstanceProcAddr get_proc_addr = ctx->get_proc_addr;
317
318			*index = -1;
319			*count = 0;
320			get_queue_family_prop = (PFN_vkGetPhysicalDeviceQueueFamilyProperties)
321			get_proc_addr(ctx->placebo_instance->instance,
322			"vkGetPhysicalDeviceQueueFamilyProperties");
323			get_queue_family_prop(ctx->placebo_vulkan->phys_device,
324			&num_queue_family_prop, NULL);
325			if (!num_queue_family_prop)
326			return AVERROR_EXTERNAL;
327
328			queue_family_prop = av_calloc(num_queue_family_prop,
329			sizeof(*queue_family_prop));
330			if (!queue_family_prop)
331			return AVERROR(ENOMEM);
332
333			get_queue_family_prop(ctx->placebo_vulkan->phys_device,
334			&num_queue_family_prop,
335			queue_family_prop);
336
337			for (int i = 0; i < num_queue_family_prop; i++) {
338			if (queue_family_prop[i].queueFlags & VK_QUEUE_VIDEO_DECODE_BIT_KHR) {
339			*index = i;
340			*count = queue_family_prop[i].queueCount;
341			break;
342			}
343			}
344			av_free(queue_family_prop);
345
346			return 0;
347			}
348
349			static int create_vk_by_placebo(VkRenderer *renderer,
350			const char **ext, unsigned num_ext,
351			const AVDictionary *opt)
352			{
353			RendererContext *ctx = (RendererContext *) renderer;
354			AVHWDeviceContext *device_ctx;
355			AVVulkanDeviceContext *vk_dev_ctx;
356			int decode_index;
357			int decode_count;
358			int ret;
359
360			ctx->get_proc_addr = SDL_Vulkan_GetVkGetInstanceProcAddr();
361
362			ctx->placebo_instance = pl_vk_inst_create(ctx->vk_log, pl_vk_inst_params(
363			.get_proc_addr = ctx->get_proc_addr,
364			.debug = enable_debug(opt),
365			.extensions = ext,
366			.num_extensions = num_ext
367			));
368			if (!ctx->placebo_instance) {
369			return AVERROR_EXTERNAL;
370			}
371			ctx->inst = ctx->placebo_instance->instance;
372
373			ctx->placebo_vulkan = pl_vulkan_create(ctx->vk_log, pl_vulkan_params(
374			.instance = ctx->placebo_instance->instance,
375			.get_proc_addr = ctx->placebo_instance->get_proc_addr,
376			.surface = ctx->vk_surface,
377			.allow_software = false,
378			.opt_extensions = optional_device_exts,
379			.num_opt_extensions = FF_ARRAY_ELEMS(optional_device_exts),
380			.extra_queues = VK_QUEUE_VIDEO_DECODE_BIT_KHR,
381			.device_name = select_device(opt),
382			));
383			if (!ctx->placebo_vulkan)
384			return AVERROR_EXTERNAL;
385			ctx->hw_device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VULKAN);
386			if (!ctx->hw_device_ref) {
387			return AVERROR(ENOMEM);
388			}
389
390			device_ctx = (AVHWDeviceContext *) ctx->hw_device_ref->data;
391			device_ctx->user_opaque = ctx;
392
393			vk_dev_ctx = device_ctx->hwctx;
394			vk_dev_ctx->lock_queue = placebo_lock_queue,
395			vk_dev_ctx->unlock_queue = placebo_unlock_queue;
396
397			vk_dev_ctx->get_proc_addr = ctx->placebo_instance->get_proc_addr;
398
399			vk_dev_ctx->inst = ctx->placebo_instance->instance;
400			vk_dev_ctx->phys_dev = ctx->placebo_vulkan->phys_device;
401			vk_dev_ctx->act_dev = ctx->placebo_vulkan->device;
402
403			vk_dev_ctx->device_features = *ctx->placebo_vulkan->features;
404
405			vk_dev_ctx->enabled_inst_extensions = ctx->placebo_instance->extensions;
406			vk_dev_ctx->nb_enabled_inst_extensions = ctx->placebo_instance->num_extensions;
407
408			vk_dev_ctx->enabled_dev_extensions = ctx->placebo_vulkan->extensions;
409			vk_dev_ctx->nb_enabled_dev_extensions = ctx->placebo_vulkan->num_extensions;
410
411			vk_dev_ctx->queue_family_index = ctx->placebo_vulkan->queue_graphics.index;
412			vk_dev_ctx->nb_graphics_queues = ctx->placebo_vulkan->queue_graphics.count;
413
414			vk_dev_ctx->queue_family_tx_index = ctx->placebo_vulkan->queue_transfer.index;
415			vk_dev_ctx->nb_tx_queues = ctx->placebo_vulkan->queue_transfer.count;
416
417			vk_dev_ctx->queue_family_comp_index = ctx->placebo_vulkan->queue_compute.index;
418			vk_dev_ctx->nb_comp_queues = ctx->placebo_vulkan->queue_compute.count;
419
420			ret = get_decode_queue(renderer, &decode_index, &decode_count);
421			if (ret < 0)
422			return ret;
423
424			vk_dev_ctx->queue_family_decode_index = decode_index;
425			vk_dev_ctx->nb_decode_queues = decode_count;
426
427			ret = av_hwdevice_ctx_init(ctx->hw_device_ref);
428			if (ret < 0)
429			return ret;
430
431			return 0;
432			}
433
434			static int create(VkRenderer *renderer, SDL_Window *window, AVDictionary *opt)
435			{
436			int ret = 0;
437			unsigned num_ext = 0;
438			const char **ext = NULL;
439			int w, h;
440			struct pl_log_params vk_log_params = {
441			.log_cb = vk_log_cb,
442			.log_level = PL_LOG_DEBUG,
443			.log_priv = renderer,
444			};
445			RendererContext *ctx = (RendererContext *) renderer;
446			AVDictionaryEntry *entry;
447
448			ctx->vk_log = pl_log_create(PL_API_VER, &vk_log_params);
449
450			if (!SDL_Vulkan_GetInstanceExtensions(window, &num_ext, NULL)) {
451			av_log(NULL, AV_LOG_FATAL, "Failed to get vulkan extensions: %s\n",
452			SDL_GetError());
453			return AVERROR_EXTERNAL;
454			}
455
456			ext = av_calloc(num_ext, sizeof(*ext));
457			if (!ext) {
458			ret = AVERROR(ENOMEM);
459			goto out;
460			}
461
462			SDL_Vulkan_GetInstanceExtensions(window, &num_ext, ext);
463
464			entry = av_dict_get(opt, "create_by_placebo", NULL, 0);
465			if (entry && strtol(entry->value, NULL, 10))
466			ret = create_vk_by_placebo(renderer, ext, num_ext, opt);
467			else
468			ret = create_vk_by_hwcontext(renderer, ext, num_ext, opt);
469			if (ret < 0)
470			goto out;
471
472			if (!SDL_Vulkan_CreateSurface(window, ctx->inst, &ctx->vk_surface)) {
473			ret = AVERROR_EXTERNAL;
474			goto out;
475			}
476
477			ctx->swapchain = pl_vulkan_create_swapchain(
478			ctx->placebo_vulkan,
479			pl_vulkan_swapchain_params(
480			.surface = ctx->vk_surface,
481			.present_mode = VK_PRESENT_MODE_FIFO_KHR));
482			if (!ctx->swapchain) {
483			ret = AVERROR_EXTERNAL;
484			goto out;
485			}
486
487			SDL_Vulkan_GetDrawableSize(window, &w, &h);
488			pl_swapchain_resize(ctx->swapchain, &w, &h);
489
490			ctx->renderer = pl_renderer_create(ctx->vk_log, ctx->placebo_vulkan->gpu);
491			if (!ctx->renderer) {
492			ret = AVERROR_EXTERNAL;
493			goto out;
494			}
495
496			ctx->vk_frame = av_frame_alloc();
497			if (!ctx->vk_frame) {
498			ret = AVERROR(ENOMEM);
499			goto out;
500			}
501
502			ret = 0;
503
504			out:
505			av_free(ext);
506			return ret;
507			}
508
509			static int get_hw_dev(VkRenderer *renderer, AVBufferRef **dev)
510			{
511			RendererContext *ctx = (RendererContext *) renderer;
512
513			*dev = ctx->hw_device_ref;
514			return 0;
515			}
516
517			static int create_hw_frame(VkRenderer *renderer, AVFrame *frame)
518			{
519			RendererContext *ctx = (RendererContext *) renderer;
520			AVHWFramesContext *src_hw_frame = (AVHWFramesContext *)
521			frame->hw_frames_ctx->data;
522			AVHWFramesContext *hw_frame;
523			AVVulkanFramesContext *vk_frame_ctx;
524			int ret;
525
526			if (ctx->hw_frame_ref) {
527			hw_frame = (AVHWFramesContext *) ctx->hw_frame_ref->data;
528
529			if (hw_frame->width == frame->width &&
530			hw_frame->height == frame->height &&
531			hw_frame->sw_format == src_hw_frame->sw_format)
532			return 0;
533
534			av_buffer_unref(&ctx->hw_frame_ref);
535			}
536
537			if (!ctx->constraints) {
538			ctx->constraints = av_hwdevice_get_hwframe_constraints(
539			ctx->hw_device_ref, NULL);
540			if (!ctx->constraints)
541			return AVERROR(ENOMEM);
542			}
543
544			// Check constraints and skip create hwframe. Don't take it as error since
545			// we can fallback to memory copy from GPU to CPU.
546			if ((ctx->constraints->max_width &&
547			ctx->constraints->max_width < frame->width) ||
548			(ctx->constraints->max_height &&
549			ctx->constraints->max_height < frame->height) ||
550			(ctx->constraints->min_width &&
551			ctx->constraints->min_width > frame->width) ||
552			(ctx->constraints->min_height &&
553			ctx->constraints->min_height > frame->height))
554			return 0;
555
556			if (ctx->constraints->valid_sw_formats) {
557			enum AVPixelFormat *sw_formats = ctx->constraints->valid_sw_formats;
558			while (*sw_formats != AV_PIX_FMT_NONE) {
559			if (*sw_formats == src_hw_frame->sw_format)
560			break;
561			sw_formats++;
562			}
563			if (*sw_formats == AV_PIX_FMT_NONE)
564			return 0;
565			}
566
567			ctx->hw_frame_ref = av_hwframe_ctx_alloc(ctx->hw_device_ref);
568			if (!ctx->hw_frame_ref)
569			return AVERROR(ENOMEM);
570
571			hw_frame = (AVHWFramesContext *) ctx->hw_frame_ref->data;
572			hw_frame->format = AV_PIX_FMT_VULKAN;
573			hw_frame->sw_format = src_hw_frame->sw_format;
574			hw_frame->width = frame->width;
575			hw_frame->height = frame->height;
576
577			if (frame->format == AV_PIX_FMT_CUDA) {
578			vk_frame_ctx = hw_frame->hwctx;
579			vk_frame_ctx->flags = AV_VK_FRAME_FLAG_DISABLE_MULTIPLANE;
580			}
581
582			ret = av_hwframe_ctx_init(ctx->hw_frame_ref);
583			if (ret < 0) {
584			av_log(renderer, AV_LOG_ERROR, "Create hwframe context failed, %s\n",
585			av_err2str(ret));
586			return ret;
587			}
588
589			av_hwframe_transfer_get_formats(ctx->hw_frame_ref,
590			AV_HWFRAME_TRANSFER_DIRECTION_TO,
591			&ctx->transfer_formats, 0);
592
593			return 0;
594			}
595
596			static inline int check_hw_transfer(RendererContext *ctx, AVFrame *frame)
597			{
598			if (!ctx->hw_frame_ref || !ctx->transfer_formats)
599			return 0;
600
601			for (int i = 0; ctx->transfer_formats[i] != AV_PIX_FMT_NONE; i++)
602			if (ctx->transfer_formats[i] == frame->format)
603			return 1;
604
605			return 0;
606			}
607
608			static inline int move_to_output_frame(RendererContext *ctx, AVFrame *frame)
609			{
610			int ret = av_frame_copy_props(ctx->vk_frame, frame);
611			if (ret < 0)
612			return ret;
613			av_frame_unref(frame);
614			av_frame_move_ref(frame, ctx->vk_frame);
615			return 0;
616			}
617
618			static int map_frame(VkRenderer *renderer, AVFrame *frame, int use_hw_frame)
619			{
620			RendererContext *ctx = (RendererContext *) renderer;
621			int ret;
622
623			if (use_hw_frame && !ctx->hw_frame_ref)
624			return AVERROR(ENOSYS);
625
626			// Try map data first
627			av_frame_unref(ctx->vk_frame);
628			if (use_hw_frame) {
629			ctx->vk_frame->hw_frames_ctx = av_buffer_ref(ctx->hw_frame_ref);
630			ctx->vk_frame->format = AV_PIX_FMT_VULKAN;
631			}
632			ret = av_hwframe_map(ctx->vk_frame, frame, 0);
633			if (!ret)
634			return move_to_output_frame(ctx, frame);
635
636			if (ret != AVERROR(ENOSYS))
637			av_log(NULL, AV_LOG_FATAL, "Map frame failed: %s\n", av_err2str(ret));
638			return ret;
639			}
640
641			static int transfer_frame(VkRenderer *renderer, AVFrame *frame, int use_hw_frame)
642			{
643			RendererContext *ctx = (RendererContext *) renderer;
644			int ret;
645
646			if (use_hw_frame && !check_hw_transfer(ctx, frame))
647			return AVERROR(ENOSYS);
648
649			av_frame_unref(ctx->vk_frame);
650			if (use_hw_frame)
651			av_hwframe_get_buffer(ctx->hw_frame_ref, ctx->vk_frame, 0);
652			ret = av_hwframe_transfer_data(ctx->vk_frame, frame, 1);
653			if (!ret)
654			return move_to_output_frame(ctx, frame);
655
656			if (ret != AVERROR(ENOSYS))
657			av_log(NULL, AV_LOG_FATAL, "Transfer frame failed: %s\n",
658			av_err2str(ret));
659			return ret;
660			}
661
662			static int convert_frame(VkRenderer *renderer, AVFrame *frame)
663			{
664			int ret;
665
666			if (!frame->hw_frames_ctx)
667			return 0;
668
669			if (frame->format == AV_PIX_FMT_VULKAN)
670			return 0;
671
672			ret = create_hw_frame(renderer, frame);
673			if (ret < 0)
674			return ret;
675
676			for (int use_hw = 1; use_hw >=0; use_hw--) {
677			ret = map_frame(renderer, frame, use_hw);
678			if (!ret)
679			return 0;
680			if (ret != AVERROR(ENOSYS))
681			return ret;
682
683			ret = transfer_frame(renderer, frame, use_hw);
684			if (!ret)
685			return 0;
686			if (ret != AVERROR(ENOSYS))
687			return ret;
688			}
689
690			return ret;
691			}
692
693			static int display(VkRenderer *renderer, AVFrame *frame)
694			{
695			struct pl_swapchain_frame swap_frame = {0};
696			struct pl_frame pl_frame = {0};
697			struct pl_frame target = {0};
698			RendererContext *ctx = (RendererContext *) renderer;
699			int ret = 0;
700
701			ret = convert_frame(renderer, frame);
702			if (ret < 0)
703			return ret;
704
705			if (!pl_map_avframe_ex(ctx->placebo_vulkan->gpu, &pl_frame, pl_avframe_params(
706			.frame = frame,
707			.tex = ctx->tex))) {
708			av_log(NULL, AV_LOG_ERROR, "pl_map_avframe_ex failed\n");
709			return AVERROR_EXTERNAL;
710			}
711
712			if (!pl_swapchain_start_frame(ctx->swapchain, &swap_frame)) {
713			av_log(NULL, AV_LOG_ERROR, "start frame failed\n");
714			ret = AVERROR_EXTERNAL;
715			goto out;
716			}
717
718			pl_frame_from_swapchain(&target, &swap_frame);
719			if (!pl_render_image(ctx->renderer, &pl_frame, &target,
720			&pl_render_default_params)) {
721			av_log(NULL, AV_LOG_ERROR, "pl_render_image failed\n");
722			ret = AVERROR_EXTERNAL;
723			goto out;
724			}
725
726			if (!pl_swapchain_submit_frame(ctx->swapchain)) {
727			av_log(NULL, AV_LOG_ERROR, "pl_swapchain_submit_frame failed\n");
728			ret = AVERROR_EXTERNAL;
729			goto out;
730			}
731			pl_swapchain_swap_buffers(ctx->swapchain);
732
733			out:
734			pl_unmap_avframe(ctx->placebo_vulkan->gpu, &pl_frame);
735			return ret;
736			}
737
738			static int resize(VkRenderer *renderer, int width, int height)
739			{
740			RendererContext *ctx = (RendererContext *) renderer;
741
742			if (!pl_swapchain_resize(ctx->swapchain, &width, &height))
743			return AVERROR_EXTERNAL;
744			return 0;
745			}
746
747			static void destroy(VkRenderer *renderer)
748			{
749			RendererContext *ctx = (RendererContext *) renderer;
750			PFN_vkDestroySurfaceKHR vkDestroySurfaceKHR;
751
752			av_frame_free(&ctx->vk_frame);
753			av_freep(&ctx->transfer_formats);
754			av_hwframe_constraints_free(&ctx->constraints);
755			av_buffer_unref(&ctx->hw_frame_ref);
756
757			if (ctx->placebo_vulkan) {
758			for (int i = 0; i < FF_ARRAY_ELEMS(ctx->tex); i++)
759			pl_tex_destroy(ctx->placebo_vulkan->gpu, &ctx->tex[i]);
760			pl_renderer_destroy(&ctx->renderer);
761			pl_swapchain_destroy(&ctx->swapchain);
762			pl_vulkan_destroy(&ctx->placebo_vulkan);
763			}
764
765			if (ctx->vk_surface) {
766			vkDestroySurfaceKHR = (PFN_vkDestroySurfaceKHR)
767			ctx->get_proc_addr(ctx->inst, "vkDestroySurfaceKHR");
768			vkDestroySurfaceKHR(ctx->inst, ctx->vk_surface, NULL);
769			ctx->vk_surface = NULL;
770			}
771
772			av_buffer_unref(&ctx->hw_device_ref);
773			pl_vk_inst_destroy(&ctx->placebo_instance);
774
775			pl_log_destroy(&ctx->vk_log);
776			}
777
778			static const AVClass vulkan_renderer_class = {
779			.class_name = "Vulkan Renderer",
780			.item_name = av_default_item_name,
781			.version = LIBAVUTIL_VERSION_INT,
782			};
783
784			VkRenderer *vk_get_renderer(void)
785			{
786			RendererContext *ctx = av_mallocz(sizeof(*ctx));
787			VkRenderer *renderer;
788
789			if (!ctx)
790			return NULL;
791
792			renderer = &ctx->api;
793			renderer->class = &vulkan_renderer_class;
794			renderer->get_hw_dev = get_hw_dev;
795			renderer->create = create;
796			renderer->display = display;
797			renderer->resize = resize;
798			renderer->destroy = destroy;
799
800			return renderer;
801			}
802
803			#else
804
805		✗	VkRenderer *vk_get_renderer(void)
806			{
807		✗	return NULL;
808			}
809
810			#endif
811
812		✗	int vk_renderer_create(VkRenderer *renderer, SDL_Window *window,
813			AVDictionary *opt)
814			{
815		✗	return renderer->create(renderer, window, opt);
816			}
817
818		✗	int vk_renderer_get_hw_dev(VkRenderer *renderer, AVBufferRef **dev)
819			{
820		✗	return renderer->get_hw_dev(renderer, dev);
821			}
822
823		✗	int vk_renderer_display(VkRenderer *renderer, AVFrame *frame)
824			{
825		✗	return renderer->display(renderer, frame);
826			}
827
828		✗	int vk_renderer_resize(VkRenderer *renderer, int width, int height)
829			{
830		✗	return renderer->resize(renderer, width, height);
831			}
832
833		✗	void vk_renderer_destroy(VkRenderer *renderer)
834			{
835		✗	renderer->destroy(renderer);
836		✗	}
837