av1dec.c File Reference

#include "libavutil/film_grain_params.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "av1dec.h"
#include "bytestream.h"
#include "hwconfig.h"
#include "internal.h"
#include "profiles.h"

Go to the source code of this file.

Macros
#define	HWACCEL_MAX
#define	OFFSET(x)   offsetof(AV1DecContext, x)
#define	VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Functions
static uint32_t	inverse_recenter (int r, uint32_t v)
static uint32_t	decode_unsigned_subexp_with_ref (uint32_t sub_exp, int mx, int r)
static int32_t	decode_signed_subexp_with_ref (uint32_t sub_exp, int low, int high, int r)
static void	read_global_param (AV1DecContext *s, int type, int ref, int idx)
static void	global_motion_params (AV1DecContext *s)
	update gm type/params, since cbs already implemented part of this funcation, so we don't need to full implement spec. More...
static int	get_relative_dist (const AV1RawSequenceHeader *seq, unsigned int a, unsigned int b)
static void	skip_mode_params (AV1DecContext *s)
static void	coded_lossless_param (AV1DecContext *s)
static void	load_grain_params (AV1DecContext *s)
static int	init_tile_data (AV1DecContext *s)
static int	get_tiles_info (AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
static int	get_pixel_format (AVCodecContext *avctx)
static void	av1_frame_unref (AVCodecContext *avctx, AV1Frame *f)
static int	av1_frame_ref (AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
static av_cold int	av1_decode_free (AVCodecContext *avctx)
static int	set_context_with_sequence (AVCodecContext *avctx, const AV1RawSequenceHeader *seq)
static int	update_context_with_frame_header (AVCodecContext *avctx, const AV1RawFrameHeader *header)
static av_cold int	av1_decode_init (AVCodecContext *avctx)
static int	av1_frame_alloc (AVCodecContext *avctx, AV1Frame *f)
static int	export_film_grain (AVCodecContext *avctx, AVFrame *frame)
static int	set_output_frame (AVCodecContext *avctx, AVFrame *frame, const AVPacket *pkt, int *got_frame)
static int	update_reference_list (AVCodecContext *avctx)
static int	get_current_frame (AVCodecContext *avctx)
static int	av1_decode_frame (AVCodecContext *avctx, void *frame, int *got_frame, AVPacket *pkt)
static void	av1_decode_flush (AVCodecContext *avctx)

Variables
static const AVOption	av1_options []
static const AVClass	av1_class
AVCodec	ff_av1_decoder

Macro Definition Documentation

#define HWACCEL_MAX

Value:

(CONFIG_AV1_DXVA2_HWACCEL + \
                     CONFIG_AV1_D3D11VA_HWACCEL * 2 + \
                     CONFIG_AV1_NVDEC_HWACCEL + \
                     CONFIG_AV1_VAAPI_HWACCEL)

Referenced by get_pixel_format().

#define OFFSET

(

x

)

offsetof(AV1DecContext, x)

Definition at line 1109 of file av1dec.c.

#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 1110 of file av1dec.c.

Referenced by decode_flush().

Function Documentation

static uint32_t inverse_recenter ( int  r, uint32_t  v  )

static

Definition at line 31 of file av1dec.c.

Referenced by decode_unsigned_subexp_with_ref().

static uint32_t decode_unsigned_subexp_with_ref ( uint32_t  sub_exp, int  mx, int  r  )

static

Definition at line 41 of file av1dec.c.

Referenced by decode_signed_subexp_with_ref().

static int32_t decode_signed_subexp_with_ref ( uint32_t  sub_exp, int  low, int  high, int  r  )

static

Definition at line 51 of file av1dec.c.

Referenced by read_global_param().

static void read_global_param ( AV1DecContext *  s, int  type, int  ref, int  idx  )

static

Definition at line 58 of file av1dec.c.

Referenced by global_motion_params().

static void global_motion_params ( AV1DecContext *  s )

static

update gm type/params, since cbs already implemented part of this funcation, so we don't need to full implement spec.

Definition at line 104 of file av1dec.c.

Referenced by get_current_frame().

static int get_relative_dist ( const AV1RawSequenceHeader *  seq, unsigned int  a, unsigned int  b  )

static

Definition at line 150 of file av1dec.c.

Referenced by skip_mode_params().

static void skip_mode_params ( AV1DecContext *  s )

static

Definition at line 158 of file av1dec.c.

Referenced by get_current_frame().

static void coded_lossless_param ( AV1DecContext *  s )

static

Definition at line 222 of file av1dec.c.

Referenced by get_current_frame().

static void load_grain_params ( AV1DecContext *  s )

static

Definition at line 252 of file av1dec.c.

Referenced by get_current_frame().

static int init_tile_data ( AV1DecContext *  s )

static

Definition at line 272 of file av1dec.c.

Referenced by get_current_frame().

static int get_tiles_info ( AVCodecContext *  avctx, const AV1RawTileGroup *  tile_group  )

static

Definition at line 290 of file av1dec.c.

Referenced by av1_decode_frame().

static int get_pixel_format ( AVCodecContext *  avctx )

static

check if the HW accel is inited correctly. If not, return un-implemented. Since now the av1 decoder doesn't support native decode, if it will be implemented in the future, need remove this check.

Definition at line 335 of file av1dec.c.

Referenced by av1_decode_frame().

static void av1_frame_unref ( AVCodecContext *  avctx, AV1Frame *  f  )

static

Definition at line 475 of file av1dec.c.

Referenced by av1_decode_flush(), av1_decode_frame(), av1_decode_free(), av1_frame_alloc(), av1_frame_ref(), get_current_frame(), and update_reference_list().

static int av1_frame_ref ( AVCodecContext *  avctx, AV1Frame *  dst, const AV1Frame *  src  )

static

Definition at line 489 of file av1dec.c.

Referenced by av1_decode_frame(), and update_reference_list().

static av_cold int av1_decode_free ( AVCodecContext *  avctx )

static

Definition at line 533 of file av1dec.c.

static int set_context_with_sequence ( AVCodecContext *  avctx, const AV1RawSequenceHeader *  seq  )

static

Definition at line 554 of file av1dec.c.

Referenced by av1_decode_frame(), and av1_decode_init().

static int update_context_with_frame_header ( AVCodecContext *  avctx, const AV1RawFrameHeader *  header  )

static

Definition at line 598 of file av1dec.c.

Referenced by av1_frame_alloc().

static av_cold int av1_decode_init ( AVCodecContext *  avctx )

static

Definition at line 628 of file av1dec.c.

static int av1_frame_alloc ( AVCodecContext *  avctx, AV1Frame *  f  )

static

Definition at line 687 of file av1dec.c.

Referenced by get_current_frame().

static int export_film_grain ( AVCodecContext *  avctx, AVFrame *  frame  )

static

Definition at line 744 of file av1dec.c.

Referenced by set_output_frame().

static int set_output_frame ( AVCodecContext *  avctx, AVFrame *  frame, const AVPacket *  pkt, int *  got_frame  )

static

Definition at line 804 of file av1dec.c.

Referenced by av1_decode_frame().

static int update_reference_list ( AVCodecContext *  avctx )

static

Definition at line 837 of file av1dec.c.

Referenced by av1_decode_frame().

static int get_current_frame ( AVCodecContext *  avctx )

static

Definition at line 857 of file av1dec.c.

Referenced by av1_decode_frame().

static int av1_decode_frame ( AVCodecContext *  avctx, void *  frame, int *  got_frame, AVPacket *  pkt  )

static

Definition at line 886 of file av1dec.c.

static void av1_decode_flush ( AVCodecContext *  avctx )

static

Definition at line 1094 of file av1dec.c.

Variable Documentation

const AVOption av1_options[]

static

Initial value:

= {
    { "operating_point",  "Select an operating point of the scalable bitstream",
                          OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, AV1_MAX_OPERATING_POINTS - 1, VD },
    { NULL }
}

Definition at line 1111 of file av1dec.c.

const AVClass av1_class

static

Initial value:

= {
    .class_name = "AV1 decoder",
    .item_name  = av_default_item_name,
    .option     = av1_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 1117 of file av1dec.c.

AVCodec ff_av1_decoder

Definition at line 1124 of file av1dec.c.