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FFmpeg/fftools/ffplay_renderer.c
Leo Izen 36980179a0 fftools/ffplay_renderer: declare function argument as const 
Declaring the function argument as const fixes a warning down the line
that the const parameter is stripped. We don't modify this argument.

Signed-off-by: Leo Izen <leo.izen@gmail.com>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2023-11-27 23:39:48 +08:00

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define VK_NO_PROTOTYPES
#define VK_ENABLE_BETA_EXTENSIONS
#include "config.h"
#include "ffplay_renderer.h"
#if (SDL_VERSION_ATLEAST(2, 0, 6) && CONFIG_LIBPLACEBO)
/* Get PL_API_VER */
#include <libplacebo/config.h>
#define HAVE_VULKAN_RENDERER (PL_API_VER >= 278)
#else
#define HAVE_VULKAN_RENDERER 0
#endif
#if HAVE_VULKAN_RENDERER
#if defined(_WIN32) && !defined(VK_USE_PLATFORM_WIN32_KHR)
#define VK_USE_PLATFORM_WIN32_KHR
#endif
#include <libplacebo/vulkan.h>
#include <libplacebo/utils/frame_queue.h>
#include <libplacebo/utils/libav.h>
#include <SDL_vulkan.h>
#include "libavutil/bprint.h"
#endif
struct VkRenderer {
const AVClass *class;
int (*create)(VkRenderer *renderer, SDL_Window *window, AVDictionary *dict);
int (*get_hw_dev)(VkRenderer *renderer, AVBufferRef **dev);
int (*display)(VkRenderer *renderer, AVFrame *frame);
int (*resize)(VkRenderer *renderer, int width, int height);
void (*destroy)(VkRenderer *renderer);
};
#if HAVE_VULKAN_RENDERER
typedef struct RendererContext {
VkRenderer api;
// Can be NULL when vulkan instance is created by avutil
pl_vk_inst placebo_instance;
pl_vulkan placebo_vulkan;
pl_swapchain swapchain;
VkSurfaceKHR vk_surface;
pl_renderer renderer;
pl_tex tex[4];
pl_log vk_log;
AVBufferRef *hw_device_ref;
AVBufferRef *hw_frame_ref;
enum AVPixelFormat *transfer_formats;
AVHWFramesConstraints *constraints;
PFN_vkGetInstanceProcAddr get_proc_addr;
// This field is a copy from pl_vk_inst->instance or hw_device_ref instance.
VkInstance inst;
AVFrame *vk_frame;
} RendererContext;
static void vk_log_cb(void *log_priv, enum pl_log_level level,
const char *msg)
{
static const int level_map[] = {
AV_LOG_QUIET,
AV_LOG_FATAL,
AV_LOG_ERROR,
AV_LOG_WARNING,
AV_LOG_INFO,
AV_LOG_DEBUG,
AV_LOG_TRACE,
};
if (level > 0 && level < FF_ARRAY_ELEMS(level_map))
av_log(log_priv, level_map[level], "%s\n", msg);
}
// Should keep sync with optional_device_exts inside hwcontext_vulkan.c
static const char *optional_device_exts[] = {
/* Misc or required by other extensions */
VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME,
VK_KHR_PUSH_DESCRIPTOR_EXTENSION_NAME,
VK_KHR_SAMPLER_YCBCR_CONVERSION_EXTENSION_NAME,
VK_EXT_DESCRIPTOR_BUFFER_EXTENSION_NAME,
VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME,
VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME,
VK_KHR_COOPERATIVE_MATRIX_EXTENSION_NAME,
/* Imports/exports */
VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,
VK_EXT_EXTERNAL_MEMORY_DMA_BUF_EXTENSION_NAME,
VK_EXT_IMAGE_DRM_FORMAT_MODIFIER_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME,
VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME,
#ifdef _WIN32
VK_KHR_EXTERNAL_MEMORY_WIN32_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_WIN32_EXTENSION_NAME,
#endif
/* Video encoding/decoding */
VK_KHR_VIDEO_QUEUE_EXTENSION_NAME,
VK_KHR_VIDEO_DECODE_QUEUE_EXTENSION_NAME,
VK_KHR_VIDEO_DECODE_H264_EXTENSION_NAME,
VK_KHR_VIDEO_DECODE_H265_EXTENSION_NAME,
"VK_MESA_video_decode_av1",
};
static inline int enable_debug(const AVDictionary *opt)
{
AVDictionaryEntry *entry = av_dict_get(opt, "debug", NULL, 0);
int debug = entry && strtol(entry->value, NULL, 10);
return debug;
}
static void hwctx_lock_queue(void *priv, uint32_t qf, uint32_t qidx)
{
AVHWDeviceContext *avhwctx = priv;
const AVVulkanDeviceContext *hwctx = avhwctx->hwctx;
hwctx->lock_queue(avhwctx, qf, qidx);
}
static void hwctx_unlock_queue(void *priv, uint32_t qf, uint32_t qidx)
{
AVHWDeviceContext *avhwctx = priv;
const AVVulkanDeviceContext *hwctx = avhwctx->hwctx;
hwctx->unlock_queue(avhwctx, qf, qidx);
}
static int add_instance_extension(const char **ext, unsigned num_ext,
const AVDictionary *opt,
AVDictionary **dict)
{
const char *inst_ext_key = "instance_extensions";
AVDictionaryEntry *entry;
AVBPrint buf;
char *ext_list = NULL;
int ret;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
for (int i = 0; i < num_ext; i++) {
if (i)
av_bprintf(&buf, "+%s", ext[i]);
else
av_bprintf(&buf, "%s", ext[i]);
}
entry = av_dict_get(opt, inst_ext_key, NULL, 0);
if (entry && entry->value && entry->value[0]) {
if (num_ext)
av_bprintf(&buf, "+");
av_bprintf(&buf, "%s", entry->value);
}
ret = av_bprint_finalize(&buf, &ext_list);
if (ret < 0)
return ret;
return av_dict_set(dict, inst_ext_key, ext_list, AV_DICT_DONT_STRDUP_VAL);
}
static int add_device_extension(const AVDictionary *opt,
AVDictionary **dict)
{
const char *dev_ext_key = "device_extensions";
AVDictionaryEntry *entry;
AVBPrint buf;
char *ext_list = NULL;
int ret;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
av_bprintf(&buf, "%s", VK_KHR_SWAPCHAIN_EXTENSION_NAME);
for (int i = 0; i < pl_vulkan_num_recommended_extensions; i++)
av_bprintf(&buf, "+%s", pl_vulkan_recommended_extensions[i]);
entry = av_dict_get(opt, dev_ext_key, NULL, 0);
if (entry && entry->value && entry->value[0])
av_bprintf(&buf, "+%s", entry->value);
ret = av_bprint_finalize(&buf, &ext_list);
if (ret < 0)
return ret;
return av_dict_set(dict, dev_ext_key, ext_list, AV_DICT_DONT_STRDUP_VAL);
}
static int create_vk_by_hwcontext(VkRenderer *renderer,
const char **ext, unsigned num_ext,
const AVDictionary *opt)
{
RendererContext *ctx = (RendererContext *) renderer;
AVHWDeviceContext *dev;
AVVulkanDeviceContext *hwctx;
AVDictionary *dict = NULL;
int ret;
ret = add_instance_extension(ext, num_ext, opt, &dict);
if (ret < 0)
return ret;
ret = add_device_extension(opt, &dict);
if (ret) {
av_dict_free(&dict);
return ret;
}
ret = av_hwdevice_ctx_create(&ctx->hw_device_ref, AV_HWDEVICE_TYPE_VULKAN,
NULL, dict, 0);
av_dict_free(&dict);
if (ret < 0)
return ret;
dev = (AVHWDeviceContext *) ctx->hw_device_ref->data;
hwctx = dev->hwctx;
// There is no way to pass SDL GetInstanceProcAddr to hwdevice.
// Check the result and return error if they don't match.
if (hwctx->get_proc_addr != SDL_Vulkan_GetVkGetInstanceProcAddr()) {
av_log(renderer, AV_LOG_ERROR,
"hwdevice and SDL use different get_proc_addr. "
"Try -vulkan_params create_by_placebo=1\n");
return AVERROR_PATCHWELCOME;
}
ctx->get_proc_addr = hwctx->get_proc_addr;
ctx->inst = hwctx->inst;
ctx->placebo_vulkan = pl_vulkan_import(ctx->vk_log,
pl_vulkan_import_params(
.instance = hwctx->inst,
.get_proc_addr = hwctx->get_proc_addr,
.phys_device = hwctx->phys_dev,
.device = hwctx->act_dev,
.extensions = hwctx->enabled_dev_extensions,
.num_extensions = hwctx->nb_enabled_dev_extensions,
.features = &hwctx->device_features,
.lock_queue = hwctx_lock_queue,
.unlock_queue = hwctx_unlock_queue,
.queue_ctx = dev,
.queue_graphics = {
.index = hwctx->queue_family_index,
.count = hwctx->nb_graphics_queues,
},
.queue_compute = {
.index = hwctx->queue_family_comp_index,
.count = hwctx->nb_comp_queues,
},
.queue_transfer = {
.index = hwctx->queue_family_tx_index,
.count = hwctx->nb_tx_queues,
},
));
if (!ctx->placebo_vulkan)
return AVERROR_EXTERNAL;
return 0;
}
static void placebo_lock_queue(struct AVHWDeviceContext *dev_ctx,
uint32_t queue_family, uint32_t index)
{
RendererContext *ctx = dev_ctx->user_opaque;
pl_vulkan vk = ctx->placebo_vulkan;
vk->lock_queue(vk, queue_family, index);
}
static void placebo_unlock_queue(struct AVHWDeviceContext *dev_ctx,
uint32_t queue_family,
uint32_t index)
{
RendererContext *ctx = dev_ctx->user_opaque;
pl_vulkan vk = ctx->placebo_vulkan;
vk->unlock_queue(vk, queue_family, index);
}
static int get_decode_queue(VkRenderer *renderer, int *index, int *count)
{
RendererContext *ctx = (RendererContext *) renderer;
VkQueueFamilyProperties *queue_family_prop = NULL;
uint32_t num_queue_family_prop = 0;
PFN_vkGetPhysicalDeviceQueueFamilyProperties get_queue_family_prop;
PFN_vkGetInstanceProcAddr get_proc_addr = ctx->get_proc_addr;
*index = -1;
*count = 0;
get_queue_family_prop = (PFN_vkGetPhysicalDeviceQueueFamilyProperties)
get_proc_addr(ctx->placebo_instance->instance,
"vkGetPhysicalDeviceQueueFamilyProperties");
get_queue_family_prop(ctx->placebo_vulkan->phys_device,
&num_queue_family_prop, NULL);
if (!num_queue_family_prop)
return AVERROR_EXTERNAL;
queue_family_prop = av_calloc(num_queue_family_prop,
sizeof(*queue_family_prop));
if (!queue_family_prop)
return AVERROR(ENOMEM);
get_queue_family_prop(ctx->placebo_vulkan->phys_device,
&num_queue_family_prop,
queue_family_prop);
for (int i = 0; i < num_queue_family_prop; i++) {
if (queue_family_prop[i].queueFlags & VK_QUEUE_VIDEO_DECODE_BIT_KHR) {
*index = i;
*count = queue_family_prop[i].queueCount;
break;
}
}
av_free(queue_family_prop);
return 0;
}
static int create_vk_by_placebo(VkRenderer *renderer,
const char **ext, unsigned num_ext,
const AVDictionary *opt)
{
RendererContext *ctx = (RendererContext *) renderer;
AVHWDeviceContext *device_ctx;
AVVulkanDeviceContext *vk_dev_ctx;
int decode_index;
int decode_count;
int ret;
ctx->get_proc_addr = SDL_Vulkan_GetVkGetInstanceProcAddr();
ctx->placebo_instance = pl_vk_inst_create(ctx->vk_log, pl_vk_inst_params(
.get_proc_addr = ctx->get_proc_addr,
.debug = enable_debug(opt),
.extensions = ext,
.num_extensions = num_ext
));
if (!ctx->placebo_instance) {
return AVERROR_EXTERNAL;
}
ctx->inst = ctx->placebo_instance->instance;
ctx->placebo_vulkan = pl_vulkan_create(ctx->vk_log, pl_vulkan_params(
.instance = ctx->placebo_instance->instance,
.get_proc_addr = ctx->placebo_instance->get_proc_addr,
.surface = ctx->vk_surface,
.allow_software = false,
.opt_extensions = optional_device_exts,
.num_opt_extensions = FF_ARRAY_ELEMS(optional_device_exts),
.extra_queues = VK_QUEUE_VIDEO_DECODE_BIT_KHR,
));
if (!ctx->placebo_vulkan)
return AVERROR_EXTERNAL;
ctx->hw_device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VULKAN);
if (!ctx->hw_device_ref) {
return AVERROR(ENOMEM);
}
device_ctx = (AVHWDeviceContext *) ctx->hw_device_ref->data;
device_ctx->user_opaque = ctx;
vk_dev_ctx = device_ctx->hwctx;
vk_dev_ctx->lock_queue = placebo_lock_queue,
vk_dev_ctx->unlock_queue = placebo_unlock_queue;
vk_dev_ctx->get_proc_addr = ctx->placebo_instance->get_proc_addr;
vk_dev_ctx->inst = ctx->placebo_instance->instance;
vk_dev_ctx->phys_dev = ctx->placebo_vulkan->phys_device;
vk_dev_ctx->act_dev = ctx->placebo_vulkan->device;
vk_dev_ctx->device_features = *ctx->placebo_vulkan->features;
vk_dev_ctx->enabled_inst_extensions = ctx->placebo_instance->extensions;
vk_dev_ctx->nb_enabled_inst_extensions = ctx->placebo_instance->num_extensions;
vk_dev_ctx->enabled_dev_extensions = ctx->placebo_vulkan->extensions;
vk_dev_ctx->nb_enabled_dev_extensions = ctx->placebo_vulkan->num_extensions;
vk_dev_ctx->queue_family_index = ctx->placebo_vulkan->queue_graphics.index;
vk_dev_ctx->nb_graphics_queues = ctx->placebo_vulkan->queue_graphics.count;
vk_dev_ctx->queue_family_tx_index = ctx->placebo_vulkan->queue_transfer.index;
vk_dev_ctx->nb_tx_queues = ctx->placebo_vulkan->queue_transfer.count;
vk_dev_ctx->queue_family_comp_index = ctx->placebo_vulkan->queue_compute.index;
vk_dev_ctx->nb_comp_queues = ctx->placebo_vulkan->queue_compute.count;
ret = get_decode_queue(renderer, &decode_index, &decode_count);
if (ret < 0)
return ret;
vk_dev_ctx->queue_family_decode_index = decode_index;
vk_dev_ctx->nb_decode_queues = decode_count;
ret = av_hwdevice_ctx_init(ctx->hw_device_ref);
if (ret < 0)
return ret;
return 0;
}
static int create(VkRenderer *renderer, SDL_Window *window, AVDictionary *opt)
{
int ret = 0;
unsigned num_ext = 0;
const char **ext = NULL;
int w, h;
struct pl_log_params vk_log_params = {
.log_cb = vk_log_cb,
.log_level = PL_LOG_DEBUG,
.log_priv = renderer,
};
RendererContext *ctx = (RendererContext *) renderer;
AVDictionaryEntry *entry;
ctx->vk_log = pl_log_create(PL_API_VER, &vk_log_params);
if (!SDL_Vulkan_GetInstanceExtensions(window, &num_ext, NULL)) {
av_log(NULL, AV_LOG_FATAL, "Failed to get vulkan extensions: %s\n",
SDL_GetError());
return AVERROR_EXTERNAL;
}
ext = av_calloc(num_ext, sizeof(*ext));
if (!ext) {
ret = AVERROR(ENOMEM);
goto out;
}
SDL_Vulkan_GetInstanceExtensions(window, &num_ext, ext);
entry = av_dict_get(opt, "create_by_placebo", NULL, 0);
if (entry && strtol(entry->value, NULL, 10))
ret = create_vk_by_placebo(renderer, ext, num_ext, opt);
else
ret = create_vk_by_hwcontext(renderer, ext, num_ext, opt);
if (ret < 0)
goto out;
if (!SDL_Vulkan_CreateSurface(window, ctx->inst, &ctx->vk_surface)) {
ret = AVERROR_EXTERNAL;
goto out;
}
ctx->swapchain = pl_vulkan_create_swapchain(
ctx->placebo_vulkan,
pl_vulkan_swapchain_params(
.surface = ctx->vk_surface,
.present_mode = VK_PRESENT_MODE_FIFO_KHR));
if (!ctx->swapchain) {
ret = AVERROR_EXTERNAL;
goto out;
}
SDL_Vulkan_GetDrawableSize(window, &w, &h);
pl_swapchain_resize(ctx->swapchain, &w, &h);
ctx->renderer = pl_renderer_create(ctx->vk_log, ctx->placebo_vulkan->gpu);
if (!ctx->renderer) {
ret = AVERROR_EXTERNAL;
goto out;
}
ctx->vk_frame = av_frame_alloc();
if (!ctx->vk_frame) {
ret = AVERROR(ENOMEM);
goto out;
}
ret = 0;
out:
av_free(ext);
return ret;
}
static int get_hw_dev(VkRenderer *renderer, AVBufferRef **dev)
{
RendererContext *ctx = (RendererContext *) renderer;
*dev = ctx->hw_device_ref;
return 0;
}
static int create_hw_frame(VkRenderer *renderer, AVFrame *frame)
{
RendererContext *ctx = (RendererContext *) renderer;
AVHWFramesContext *src_hw_frame = (AVHWFramesContext *)
frame->hw_frames_ctx->data;
AVHWFramesContext *hw_frame;
AVVulkanFramesContext *vk_frame_ctx;
int ret;
if (ctx->hw_frame_ref) {
hw_frame = (AVHWFramesContext *) ctx->hw_frame_ref->data;
if (hw_frame->width == frame->width &&
hw_frame->height == frame->height &&
hw_frame->sw_format == src_hw_frame->sw_format)
return 0;
av_buffer_unref(&ctx->hw_frame_ref);
}
if (!ctx->constraints) {
ctx->constraints = av_hwdevice_get_hwframe_constraints(
ctx->hw_device_ref, NULL);
if (!ctx->constraints)
return AVERROR(ENOMEM);
}
// Check constraints and skip create hwframe. Don't take it as error since
// we can fallback to memory copy from GPU to CPU.
if ((ctx->constraints->max_width &&
ctx->constraints->max_width < frame->width) ||
(ctx->constraints->max_height &&
ctx->constraints->max_height < frame->height) ||
(ctx->constraints->min_width &&
ctx->constraints->min_width > frame->width) ||
(ctx->constraints->min_height &&
ctx->constraints->min_height > frame->height))
return 0;
if (ctx->constraints->valid_sw_formats) {
enum AVPixelFormat *sw_formats = ctx->constraints->valid_sw_formats;
while (*sw_formats != AV_PIX_FMT_NONE) {
if (*sw_formats == src_hw_frame->sw_format)
break;
sw_formats++;
}
if (*sw_formats == AV_PIX_FMT_NONE)
return 0;
}
ctx->hw_frame_ref = av_hwframe_ctx_alloc(ctx->hw_device_ref);
if (!ctx->hw_frame_ref)
return AVERROR(ENOMEM);
hw_frame = (AVHWFramesContext *) ctx->hw_frame_ref->data;
hw_frame->format = AV_PIX_FMT_VULKAN;
hw_frame->sw_format = src_hw_frame->sw_format;
hw_frame->width = frame->width;
hw_frame->height = frame->height;
if (frame->format == AV_PIX_FMT_CUDA) {
vk_frame_ctx = hw_frame->hwctx;
vk_frame_ctx->flags = AV_VK_FRAME_FLAG_DISABLE_MULTIPLANE;
}
ret = av_hwframe_ctx_init(ctx->hw_frame_ref);
if (ret < 0) {
av_log(renderer, AV_LOG_ERROR, "Create hwframe context failed, %s\n",
av_err2str(ret));
return ret;
}
av_hwframe_transfer_get_formats(ctx->hw_frame_ref,
AV_HWFRAME_TRANSFER_DIRECTION_TO,
&ctx->transfer_formats, 0);
return 0;
}
static inline int check_hw_transfer(RendererContext *ctx, AVFrame *frame)
{
if (!ctx->hw_frame_ref || !ctx->transfer_formats)
return 0;
for (int i = 0; ctx->transfer_formats[i] != AV_PIX_FMT_NONE; i++)
if (ctx->transfer_formats[i] == frame->format)
return 1;
return 0;
}
static inline int move_to_output_frame(RendererContext *ctx, AVFrame *frame)
{
int ret = av_frame_copy_props(ctx->vk_frame, frame);
if (ret < 0)
return ret;
av_frame_unref(frame);
av_frame_move_ref(frame, ctx->vk_frame);
return 0;
}
static int map_frame(VkRenderer *renderer, AVFrame *frame, int use_hw_frame)
{
RendererContext *ctx = (RendererContext *) renderer;
int ret;
if (use_hw_frame && !ctx->hw_frame_ref)
return AVERROR(ENOSYS);
// Try map data first
av_frame_unref(ctx->vk_frame);
if (use_hw_frame) {
ctx->vk_frame->hw_frames_ctx = av_buffer_ref(ctx->hw_frame_ref);
ctx->vk_frame->format = AV_PIX_FMT_VULKAN;
}
ret = av_hwframe_map(ctx->vk_frame, frame, 0);
if (!ret)
return move_to_output_frame(ctx, frame);
if (ret != AVERROR(ENOSYS))
av_log(NULL, AV_LOG_FATAL, "Map frame failed: %s\n", av_err2str(ret));
return ret;
}
static int transfer_frame(VkRenderer *renderer, AVFrame *frame, int use_hw_frame)
{
RendererContext *ctx = (RendererContext *) renderer;
int ret;
if (use_hw_frame && !check_hw_transfer(ctx, frame))
return AVERROR(ENOSYS);
av_frame_unref(ctx->vk_frame);
if (use_hw_frame)
av_hwframe_get_buffer(ctx->hw_frame_ref, ctx->vk_frame, 0);
ret = av_hwframe_transfer_data(ctx->vk_frame, frame, 1);
if (!ret)
return move_to_output_frame(ctx, frame);
if (ret != AVERROR(ENOSYS))
av_log(NULL, AV_LOG_FATAL, "Transfer frame failed: %s\n",
av_err2str(ret));
return ret;
}
static int convert_frame(VkRenderer *renderer, AVFrame *frame)
{
int ret;
if (!frame->hw_frames_ctx)
return 0;
if (frame->format == AV_PIX_FMT_VULKAN)
return 0;
ret = create_hw_frame(renderer, frame);
if (ret < 0)
return ret;
for (int use_hw = 1; use_hw >=0; use_hw--) {
ret = map_frame(renderer, frame, use_hw);
if (!ret)
return 0;
if (ret != AVERROR(ENOSYS))
return ret;
ret = transfer_frame(renderer, frame, use_hw);
if (!ret)
return 0;
if (ret != AVERROR(ENOSYS))
return ret;
}
return ret;
}
static int display(VkRenderer *renderer, AVFrame *frame)
{
struct pl_swapchain_frame swap_frame = {0};
struct pl_frame pl_frame = {0};
struct pl_frame target = {0};
RendererContext *ctx = (RendererContext *) renderer;
int ret = 0;
ret = convert_frame(renderer, frame);
if (ret < 0)
return ret;
if (!pl_map_avframe_ex(ctx->placebo_vulkan->gpu, &pl_frame, pl_avframe_params(
.frame = frame,
.tex = ctx->tex))) {
av_log(NULL, AV_LOG_ERROR, "pl_map_avframe_ex failed\n");
return AVERROR_EXTERNAL;
}
if (!pl_swapchain_start_frame(ctx->swapchain, &swap_frame)) {
av_log(NULL, AV_LOG_ERROR, "start frame failed\n");
ret = AVERROR_EXTERNAL;
goto out;
}
pl_frame_from_swapchain(&target, &swap_frame);
if (!pl_render_image(ctx->renderer, &pl_frame, &target,
&pl_render_default_params)) {
av_log(NULL, AV_LOG_ERROR, "pl_render_image failed\n");
ret = AVERROR_EXTERNAL;
goto out;
}
if (!pl_swapchain_submit_frame(ctx->swapchain)) {
av_log(NULL, AV_LOG_ERROR, "pl_swapchain_submit_frame failed\n");
ret = AVERROR_EXTERNAL;
goto out;
}
pl_swapchain_swap_buffers(ctx->swapchain);
out:
pl_unmap_avframe(ctx->placebo_vulkan->gpu, &pl_frame);
return ret;
}
static int resize(VkRenderer *renderer, int width, int height)
{
RendererContext *ctx = (RendererContext *) renderer;
if (!pl_swapchain_resize(ctx->swapchain, &width, &height))
return AVERROR_EXTERNAL;
return 0;
}
static void destroy(VkRenderer *renderer)
{
RendererContext *ctx = (RendererContext *) renderer;
PFN_vkDestroySurfaceKHR vkDestroySurfaceKHR;
av_frame_free(&ctx->vk_frame);
av_freep(&ctx->transfer_formats);
av_hwframe_constraints_free(&ctx->constraints);
av_buffer_unref(&ctx->hw_frame_ref);
if (ctx->placebo_vulkan) {
for (int i = 0; i < FF_ARRAY_ELEMS(ctx->tex); i++)
pl_tex_destroy(ctx->placebo_vulkan->gpu, &ctx->tex[i]);
pl_renderer_destroy(&ctx->renderer);
pl_swapchain_destroy(&ctx->swapchain);
pl_vulkan_destroy(&ctx->placebo_vulkan);
}
if (ctx->vk_surface) {
vkDestroySurfaceKHR = (PFN_vkDestroySurfaceKHR)
ctx->get_proc_addr(ctx->inst, "vkDestroySurfaceKHR");
vkDestroySurfaceKHR(ctx->inst, ctx->vk_surface, NULL);
ctx->vk_surface = NULL;
}
av_buffer_unref(&ctx->hw_device_ref);
pl_vk_inst_destroy(&ctx->placebo_instance);
pl_log_destroy(&ctx->vk_log);
}
static const AVClass vulkan_renderer_class = {
.class_name = "Vulkan Renderer",
.item_name = av_default_item_name,
.version = LIBAVUTIL_VERSION_INT,
};
VkRenderer *vk_get_renderer(void)
{
RendererContext *ctx = av_mallocz(sizeof(*ctx));
VkRenderer *renderer;
if (!ctx)
return NULL;
renderer = &ctx->api;
renderer->class = &vulkan_renderer_class;
renderer->get_hw_dev = get_hw_dev;
renderer->create = create;
renderer->display = display;
renderer->resize = resize;
renderer->destroy = destroy;
return renderer;
}
#else
VkRenderer *vk_get_renderer(void)
{
return NULL;
}
#endif
int vk_renderer_create(VkRenderer *renderer, SDL_Window *window,
AVDictionary *opt)
{
return renderer->create(renderer, window, opt);
}
int vk_renderer_get_hw_dev(VkRenderer *renderer, AVBufferRef **dev)
{
return renderer->get_hw_dev(renderer, dev);
}
int vk_renderer_display(VkRenderer *renderer, AVFrame *frame)
{
return renderer->display(renderer, frame);
}
int vk_renderer_resize(VkRenderer *renderer, int width, int height)
{
return renderer->resize(renderer, width, height);
}
void vk_renderer_destroy(VkRenderer *renderer)
{
renderer->destroy(renderer);
}
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