vaapi_hevc.c File Reference

This file implements the glue code between FFmpeg's and VA API's structures for HEVC decoding. More...

#include "vaapi_internal.h"
#include "hevc.h"
#include "mpegutils.h"

Go to the source code of this file.

Data Structures
struct	vaapi_hevc_frame_data

Functions
static void	init_vaapi_pic (VAPictureHEVC *va_pic)
	Initialize an empty VA API picture. More...
static void	fill_vaapi_pic (VAPictureHEVC *va_pic, const HEVCFrame *pic, int rps_type)
static int	find_frame_rps_type (const HEVCContext *h, const HEVCFrame *pic)
static void	fill_vaapi_ReferenceFrames (const HEVCContext *h, VAPictureParameterBufferHEVC *pp)
static uint8_t	get_ref_pic_index (const HEVCContext *h, const HEVCFrame *frame)
static void	fill_picture_parameters (const HEVCContext *h, VAPictureParameterBufferHEVC *pp)
static int	vaapi_hevc_start_frame (AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
	Initialize and start decoding a frame with VA API. More...
static int	vaapi_hevc_end_frame (AVCodecContext *avctx)
	End a hardware decoding based frame. More...
static int	fill_pred_weight_table (HEVCContext *const h, VASliceParameterBufferHEVC *slice_param, SliceHeader *const sh)
static int	vaapi_hevc_decode_slice (AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
	Decode the given hevc slice with VA API. More...

Variables
AVHWAccel	ff_hevc_vaapi_hwaccel

Detailed Description

This file implements the glue code between FFmpeg's and VA API's structures for HEVC decoding.

Definition in file vaapi_hevc.c.

Function Documentation

static void init_vaapi_pic ( VAPictureHEVC *  va_pic )

static

Initialize an empty VA API picture.

VA API requires a fixed-size reference picture array.

Definition at line 43 of file vaapi_hevc.c.

Referenced by fill_vaapi_ReferenceFrames().

static void fill_vaapi_pic ( VAPictureHEVC *  va_pic, const HEVCFrame *  pic, int  rps_type  )

static

Definition at line 50 of file vaapi_hevc.c.

Referenced by fill_picture_parameters(), and fill_vaapi_ReferenceFrames().

static int find_frame_rps_type ( const HEVCContext *  h, const HEVCFrame *  pic  )

static

Definition at line 68 of file vaapi_hevc.c.

Referenced by fill_vaapi_ReferenceFrames().

static void fill_vaapi_ReferenceFrames ( const HEVCContext *  h, VAPictureParameterBufferHEVC *  pp  )

static

Definition at line 91 of file vaapi_hevc.c.

Referenced by fill_picture_parameters().

static uint8_t get_ref_pic_index ( const HEVCContext *  h, const HEVCFrame *  frame  )

static

Definition at line 114 of file vaapi_hevc.c.

Referenced by vaapi_hevc_decode_slice().

static void fill_picture_parameters ( const HEVCContext *  h, VAPictureParameterBufferHEVC *  pp  )

static

Definition at line 133 of file vaapi_hevc.c.

Referenced by vaapi_hevc_start_frame().

static int vaapi_hevc_start_frame ( AVCodecContext *  avctx, av_unused const uint8_t *  buffer, av_unused uint32_t  size  )

static

Initialize and start decoding a frame with VA API.

Definition at line 258 of file vaapi_hevc.c.

static int vaapi_hevc_end_frame ( AVCodecContext *  avctx )

static

End a hardware decoding based frame.

Definition at line 317 of file vaapi_hevc.c.

static int fill_pred_weight_table ( HEVCContext *const  h, VASliceParameterBufferHEVC *  slice_param, SliceHeader *const  sh  )

static

Definition at line 341 of file vaapi_hevc.c.

Referenced by vaapi_hevc_decode_slice().

static int vaapi_hevc_decode_slice ( AVCodecContext *  avctx, const uint8_t *  buffer, uint32_t  size  )

static

Decode the given hevc slice with VA API.

Definition at line 395 of file vaapi_hevc.c.

Variable Documentation

AVHWAccel ff_hevc_vaapi_hwaccel

Initial value:

= {
    .name                 = "hevc_vaapi",
    .type                 = AVMEDIA_TYPE_VIDEO,
    .id                   = AV_CODEC_ID_HEVC,
    .pix_fmt              = AV_PIX_FMT_VAAPI,
    .start_frame          = vaapi_hevc_start_frame,
    .end_frame            = vaapi_hevc_end_frame,
    .decode_slice         = vaapi_hevc_decode_slice,
    .init                 = ff_vaapi_context_init,
    .uninit               = ff_vaapi_context_fini,
    .priv_data_size       = sizeof(FFVAContext),
    .frame_priv_data_size = sizeof(vaapi_hevc_frame_data),
}

Definition at line 478 of file vaapi_hevc.c.