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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
*/
#ifndef AVCODEC_VULKAN_VIDEO_H
#define AVCODEC_VULKAN_VIDEO_H
#include "avcodec.h"
#include "vulkan.h"
#include <vk_video/vulkan_video_codecs_common.h>
#define CODEC_VER_MAJ(ver) (ver >> 22)
#define CODEC_VER_MIN(ver) ((ver >> 12) & ((1 << 10) - 1))
#define CODEC_VER_PAT(ver) (ver & ((1 << 12) - 1))
#define CODEC_VER(ver) CODEC_VER_MAJ(ver), CODEC_VER_MIN(ver), CODEC_VER_PAT(ver)
typedef struct FFVkVideoSession {
VkVideoSessionKHR session;
VkDeviceMemory *mem;
uint32_t nb_mem;
VkSamplerYcbcrConversion yuv_sampler;
AVBufferRef *dpb_hwfc_ref;
int layered_dpb;
AVFrame *layered_frame;
VkImageView layered_view;
VkImageAspectFlags layered_aspect;
} FFVkVideoCommon;
/**
* Get pixfmt from a Vulkan format.
*/
enum AVPixelFormat ff_vk_pix_fmt_from_vkfmt(VkFormat vkf);
/**
* Get aspect bits which include all planes from a VkFormat.
*/
VkImageAspectFlags ff_vk_aspect_bits_from_vkfmt(VkFormat vkf);
/**
* Get Vulkan's chroma subsampling from a pixfmt descriptor.
*/
VkVideoChromaSubsamplingFlagBitsKHR ff_vk_subsampling_from_av_desc(const AVPixFmtDescriptor *desc);
/**
* Get Vulkan's bit depth from an [8:12] integer.
*/
VkVideoComponentBitDepthFlagBitsKHR ff_vk_depth_from_av_depth(int depth);
/**
* Chooses a QF and loads it into a context.
*/
int ff_vk_video_qf_init(FFVulkanContext *s, FFVkQueueFamilyCtx *qf,
VkQueueFlagBits family, VkVideoCodecOperationFlagBitsKHR caps);
/**
* Convert level from Vulkan to AV.
*/
int ff_vk_h264_level_to_av(StdVideoH264LevelIdc level);
int ff_vk_h265_level_to_av(StdVideoH265LevelIdc level);
StdVideoH264LevelIdc ff_vk_h264_level_to_vk(int level_idc);
/**
* Convert profile from/to AV to Vulkan
*/
StdVideoH264ProfileIdc ff_vk_h264_profile_to_vk(int profile);
int ff_vk_h264_profile_to_av(StdVideoH264ProfileIdc profile);
/**
* Creates image views for video frames.
*/
int ff_vk_create_view(FFVulkanContext *s, FFVkVideoCommon *common,
VkImageView *view, VkImageAspectFlags *aspect,
AVVkFrame *src, VkFormat vkf, int is_dpb);
/**
* Initialize video session, allocating and binding necessary memory.
*/
int ff_vk_video_common_init(AVCodecContext *avctx, FFVulkanContext *s,
FFVkVideoCommon *common,
VkVideoSessionCreateInfoKHR *session_create);
/**
* Free video session and required resources.
*/
void ff_vk_video_common_uninit(FFVulkanContext *s, FFVkVideoCommon *common);
#endif /* AVCODEC_VULKAN_VIDEO_H */
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