FFmpeg: libavcodec/vulkan_decode.h File Reference

FFmpeg

libavcodec

vulkan_decode.h File Reference

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

Go to the source code of this file.

Data Structures

struct FFVulkanDecodeDescriptor

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_prepare_frame_sdr (FFVulkanDecodeContext *dec, AVFrame *pic, FFVulkanDecodePicture *vkpic, int is_current, enum FFVkShaderRepFormat rep_fmt, int alloc_dpb)

Software-defined decoder version of ff_vk_decode_prepare_frame. 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 1251 of file vulkan_decode.c.

Referenced by vk_decode_ffv1_init(), vk_decode_prores_init(), and vk_decode_prores_raw_init().

◆ 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 127 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 1082 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 145 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 183 of file vulkan_decode.c.

Referenced by vk_av1_fill_pict(), vk_h264_fill_pict(), vk_hevc_fill_pict(), and vk_vp9_fill_pict().

◆ ff_vk_decode_prepare_frame_sdr()

int ff_vk_decode_prepare_frame_sdr ( FFVulkanDecodeContext * dec,

AVFrame * pic,

FFVulkanDecodePicture * vkpic,

int is_current,

enum FFVkShaderRepFormat rep_fmt,

int alloc_dpb

)

Software-defined decoder version of ff_vk_decode_prepare_frame.

Definition at line 240 of file vulkan_decode.c.

Referenced by vk_ffv1_start_frame(), vk_prores_raw_start_frame(), and vk_prores_start_frame().

◆ 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 287 of file vulkan_decode.c.

Referenced by vk_av1_decode_slice(), vk_ffv1_decode_slice(), vk_h264_decode_slice(), vk_hevc_decode_slice(), vk_prores_decode_slice(), vk_prores_raw_decode_slice(), and vk_vp9_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 404 of file vulkan_decode.c.

Referenced by vk_av1_end_frame(), vk_h264_end_frame(), vk_hevc_end_frame(), and vk_vp9_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 610 of file vulkan_decode.c.

Referenced by vk_av1_free_frame_priv(), vk_ffv1_free_frame_priv(), vk_h264_free_frame_priv(), vk_hevc_free_frame_priv(), vk_prores_free_frame_priv(), vk_prores_raw_free_frame_priv(), and vk_vp9_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 1170 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 368 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 1199 of file vulkan_decode.c.

Referenced by ff_vk_decode_init().

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