#include "codec_id.h"
#include "decode.h"
#include "hwaccel_internal.h"
#include "internal.h"
#include "vulkan_video.h"

Data Structures
struct	FFVulkanDecodeDescriptor

struct	FFVulkanDecodeProfileData

struct	FFVulkanDecodeShared

struct	FFVulkanDecodeContext

struct	FFVulkanDecodePicture

Functions
int	ff_vk_decode_init (AVCodecContext *avctx)
	Initialize decoder. More...

int	ff_vk_update_thread_context (AVCodecContext dst, const AVCodecContext src)
	Synchronize the contexts between 2 threads. More...

int	ff_vk_frame_params (AVCodecContext avctx, AVBufferRef hw_frames_ctx)
	Initialize hw_frames_ctx with the parameters needed to decode the stream using the parameters from avctx. More...

int	ff_vk_params_invalidate (AVCodecContext avctx, int t, const uint8_t b, uint32_t s)
	Removes current session parameters to recreate them. More...

int	ff_vk_decode_prepare_frame (FFVulkanDecodeContext dec, AVFrame pic, FFVulkanDecodePicture *vkpic, int is_current, int alloc_dpb)
	Prepare a frame, creates the image view, and sets up the dpb fields. More...

int	ff_vk_decode_add_slice (AVCodecContext avctx, FFVulkanDecodePicture vp, const uint8_t data, size_t size, int add_startcode, uint32_t nb_slices, const uint32_t **offsets)
	Add slice data to frame. More...

int	ff_vk_decode_frame (AVCodecContext avctx, AVFrame pic, FFVulkanDecodePicture vp, AVFrame rpic[], FFVulkanDecodePicture *rvkp[])
	Decode a frame. More...

void	ff_vk_decode_free_frame (AVHWDeviceContext dev_ctx, FFVulkanDecodePicture vp)
	Free a frame and its state. More...

int	ff_vk_get_decode_buffer (FFVulkanDecodeContext ctx, AVBufferRef buf, void create_pNext, size_t size)
	Get an FFVkBuffer suitable for decoding from. More...

int	ff_vk_decode_create_params (AVBufferRef *par_ref, void logctx, FFVulkanDecodeShared ctx, const VkVideoSessionParametersCreateInfoKHR session_params_create)
	Create VkVideoSessionParametersKHR wrapped in an AVBufferRef. More...

void	ff_vk_decode_flush (AVCodecContext *avctx)
	Flush decoder. More...

int	ff_vk_decode_uninit (AVCodecContext *avctx)
	Free decoder. More...

Function Documentation

◆ ff_vk_decode_init()

int ff_vk_decode_init ( AVCodecContext * avctx )

Initialize decoder.

Definition at line 1081 of file vulkan_decode.c.

◆ ff_vk_update_thread_context()

int ff_vk_update_thread_context	(	AVCodecContext *	dst,
		const AVCodecContext *	src
	)

Synchronize the contexts between 2 threads.

Definition at line 80 of file vulkan_decode.c.

◆ ff_vk_frame_params()

int ff_vk_frame_params	(	AVCodecContext *	avctx,
		AVBufferRef *	hw_frames_ctx
	)

Initialize hw_frames_ctx with the parameters needed to decode the stream using the parameters from avctx.

NOTE: if avctx->internal->hwaccel_priv_data exists, will partially initialize the context.

Definition at line 974 of file vulkan_decode.c.

◆ ff_vk_params_invalidate()

int ff_vk_params_invalidate	(	AVCodecContext *	avctx,
		int	t,
		const uint8_t *	b,
		uint32_t	s
	)

Removes current session parameters to recreate them.

Definition at line 120 of file vulkan_decode.c.

◆ ff_vk_decode_prepare_frame()

int ff_vk_decode_prepare_frame	(	FFVulkanDecodeContext *	dec,
		AVFrame *	pic,
		FFVulkanDecodePicture *	vkpic,
		int	is_current,
		int	alloc_dpb
	)

Prepare a frame, creates the image view, and sets up the dpb fields.

Definition at line 141 of file vulkan_decode.c.

Referenced by vk_av1_fill_pict(), vk_h264_fill_pict(), and vk_hevc_fill_pict().

◆ ff_vk_decode_add_slice()

int ff_vk_decode_add_slice	(	AVCodecContext *	avctx,
		FFVulkanDecodePicture *	vp,
		const uint8_t *	data,
		size_t	size,
		int	add_startcode,
		uint32_t *	nb_slices,
		const uint32_t **	offsets
	)

Add slice data to frame.

Definition at line 205 of file vulkan_decode.c.

Referenced by vk_av1_decode_slice(), vk_h264_decode_slice(), and vk_hevc_decode_slice().

◆ ff_vk_decode_frame()

int ff_vk_decode_frame	(	AVCodecContext *	avctx,
		AVFrame *	pic,
		FFVulkanDecodePicture *	vp,
		AVFrame *	rpic[],
		FFVulkanDecodePicture *	rvkp[]
	)

Decode a frame.

Definition at line 312 of file vulkan_decode.c.

Referenced by vk_av1_end_frame(), vk_h264_end_frame(), and vk_hevc_end_frame().

◆ ff_vk_decode_free_frame()

void ff_vk_decode_free_frame	(	AVHWDeviceContext *	dev_ctx,
		FFVulkanDecodePicture *	vp
	)

Free a frame and its state.

Definition at line 543 of file vulkan_decode.c.

Referenced by vk_av1_free_frame_priv(), vk_h264_free_frame_priv(), and vk_hevc_free_frame_priv().

◆ ff_vk_get_decode_buffer()

int ff_vk_get_decode_buffer	(	FFVulkanDecodeContext *	ctx,
		AVBufferRef **	buf,
		void *	create_pNext,
		size_t	size
	)

Get an FFVkBuffer suitable for decoding from.

◆ ff_vk_decode_create_params()

int ff_vk_decode_create_params	(	AVBufferRef **	par_ref,
		void *	logctx,
		FFVulkanDecodeShared *	ctx,
		const VkVideoSessionParametersCreateInfoKHR *	session_params_create
	)

Create VkVideoSessionParametersKHR wrapped in an AVBufferRef.

Definition at line 1037 of file vulkan_decode.c.

Referenced by vk_av1_create_params(), vk_h264_create_params(), and vk_hevc_create_params().

◆ ff_vk_decode_flush()

void ff_vk_decode_flush ( AVCodecContext * avctx )

Flush decoder.

Definition at line 276 of file vulkan_decode.c.

Referenced by ff_vk_decode_init().

◆ ff_vk_decode_uninit()

int ff_vk_decode_uninit ( AVCodecContext * avctx )

Free decoder.

Definition at line 1066 of file vulkan_decode.c.