FFmpeg: libavcodec/vp56.c File Reference

FFmpeg 4.0

libavcodec

VP5 and VP6 compatible video decoder (common features) More...

#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "h264chroma.h"
#include "vp56.h"
#include "vp56data.h"

Go to the source code of this file.

Macros
#define	TRANSPOSE(x) (((x) >> 3) \| (((x) & 7) << 3))

Functions
void	ff_vp56_init_dequant (VP56Context *s, int quantizer)

static int	vp56_get_vectors_predictors (VP56Context *s, int row, int col, VP56Frame ref_frame)

static void	vp56_parse_mb_type_models (VP56Context *s)

static VP56mb	vp56_parse_mb_type (VP56Context *s, VP56mb prev_type, int ctx)

static void	vp56_decode_4mv (VP56Context *s, int row, int col)

static VP56mb	vp56_decode_mv (VP56Context *s, int row, int col)

static VP56mb	vp56_conceal_mv (VP56Context *s, int row, int col)

static void	vp56_add_predictors_dc (VP56Context *s, VP56Frame ref_frame)

static void	vp56_deblock_filter (VP56Context s, uint8_t yuv, ptrdiff_t stride, int dx, int dy)

static void	vp56_mc (VP56Context s, int b, int plane, uint8_t src, ptrdiff_t stride, int x, int y)

static av_always_inline void	vp56_render_mb (VP56Context *s, int row, int col, int is_alpha, VP56mb mb_type)

static int	vp56_decode_mb (VP56Context *s, int row, int col, int is_alpha)

static int	vp56_conceal_mb (VP56Context *s, int row, int col, int is_alpha)

static int	vp56_size_changed (VP56Context *s)

static int	ff_vp56_decode_mbs (AVCodecContext avctx, void , int, int)

int	ff_vp56_decode_frame (AVCodecContext avctx, void data, int got_frame, AVPacket avpkt)

av_cold int	ff_vp56_init (AVCodecContext *avctx, int flip, int has_alpha)

av_cold int	ff_vp56_init_context (AVCodecContext avctx, VP56Context s, int flip, int has_alpha)

av_cold int	ff_vp56_free (AVCodecContext *avctx)

av_cold int	ff_vp56_free_context (VP56Context *s)

Detailed Description

VP5 and VP6 compatible video decoder (common features)

Definition in file vp56.c.

Macro Definition Documentation

◆ TRANSPOSE

#define TRANSPOSE ( x ) (((x) >> 3) | (((x) & 7) << 3))

Referenced by ff_vp56_init_context().

Function Documentation

◆ ff_vp56_init_dequant()

void ff_vp56_init_dequant	(	VP56Context *	s,
		int	quantizer
	)

Definition at line 34 of file vp56.c.

Referenced by vp5_parse_header(), and vp6_parse_header().

◆ vp56_get_vectors_predictors()

static int vp56_get_vectors_predictors	(	VP56Context *	s,
		int	row,
		int	col,
		VP56Frame	ref_frame
	)

static

Definition at line 41 of file vp56.c.

Referenced by vp56_decode_mv().

◆ vp56_parse_mb_type_models()

static void vp56_parse_mb_type_models ( VP56Context * s )

static

Definition at line 79 of file vp56.c.

Referenced by ff_vp56_decode_mbs().

◆ vp56_parse_mb_type()

static VP56mb vp56_parse_mb_type	(	VP56Context *	s,
		VP56mb	prev_type,
		int	ctx
	)

static

Definition at line 150 of file vp56.c.

Referenced by vp56_decode_mv().

◆ vp56_decode_4mv()

static void vp56_decode_4mv	(	VP56Context *	s,
		int	row,
		int	col
	)

static

Definition at line 162 of file vp56.c.

Referenced by vp56_decode_mv().

◆ vp56_decode_mv()

static VP56mb vp56_decode_mv	(	VP56Context *	s,
		int	row,
		int	col
	)

static

Definition at line 207 of file vp56.c.

Referenced by vp56_decode_mb().

◆ vp56_conceal_mv()

static VP56mb vp56_conceal_mv	(	VP56Context *	s,
		int	row,
		int	col
	)

static

Definition at line 264 of file vp56.c.

Referenced by vp56_conceal_mb().

◆ vp56_add_predictors_dc()

static void vp56_add_predictors_dc	(	VP56Context *	s,
		VP56Frame	ref_frame
	)

static

Definition at line 283 of file vp56.c.

Referenced by vp56_render_mb().

◆ vp56_deblock_filter()

static void vp56_deblock_filter	(	VP56Context *	s,
		uint8_t *	yuv,
		ptrdiff_t	stride,
		int	dx,
		int	dy
	)

static

Definition at line 324 of file vp56.c.

Referenced by vp56_mc().

◆ vp56_mc()

static void vp56_mc	(	VP56Context *	s,
		int	b,
		int	plane,
		uint8_t *	src,
		ptrdiff_t	stride,
		int	x,
		int	y
	)

static

Definition at line 332 of file vp56.c.

Referenced by vp56_render_mb().

◆ vp56_render_mb()

static av_always_inline void vp56_render_mb	(	VP56Context *	s,
		int	row,
		int	col,
		int	is_alpha,
		VP56mb	mb_type
	)

static

Definition at line 403 of file vp56.c.

Referenced by vp56_conceal_mb(), and vp56_decode_mb().

◆ vp56_decode_mb()

static int vp56_decode_mb	(	VP56Context *	s,
		int	row,
		int	col,
		int	is_alpha
	)

static

Definition at line 466 of file vp56.c.

Referenced by ff_vp56_decode_mbs().

◆ vp56_conceal_mb()

static int vp56_conceal_mb	(	VP56Context *	s,
		int	row,
		int	col,
		int	is_alpha
	)

static

Definition at line 485 of file vp56.c.

Referenced by ff_vp56_decode_mbs().

◆ vp56_size_changed()

static int vp56_size_changed ( VP56Context * s )

static

Definition at line 499 of file vp56.c.

Referenced by ff_vp56_decode_frame().

◆ ff_vp56_decode_mbs()

static int ff_vp56_decode_mbs	(	AVCodecContext *	avctx,
		void *	data,
		int	jobnr,
		int	threadnr
	)

static

Definition at line 635 of file vp56.c.

Referenced by ff_vp56_decode_frame(), and vp56_size_changed().

◆ ff_vp56_decode_frame()

int ff_vp56_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	got_frame,
		AVPacket *	avpkt
	)

Definition at line 544 of file vp56.c.

◆ ff_vp56_init()

av_cold int ff_vp56_init	(	AVCodecContext *	avctx,
		int	flip,
		int	has_alpha
	)

Definition at line 752 of file vp56.c.

Referenced by vp5_decode_init(), and vp6_decode_init().

◆ ff_vp56_init_context()

av_cold int ff_vp56_init_context	(	AVCodecContext *	avctx,
		VP56Context *	s,
		int	flip,
		int	has_alpha
	)

Definition at line 758 of file vp56.c.

Referenced by ff_vp56_init(), and vp6_decode_init().

◆ ff_vp56_free()

av_cold int ff_vp56_free ( AVCodecContext * avctx )

Definition at line 811 of file vp56.c.

Referenced by ff_vp56_init_context(), and vp6_decode_free().

◆ ff_vp56_free_context()

av_cold int ff_vp56_free_context ( VP56Context * s )

Definition at line 817 of file vp56.c.

Referenced by ff_vp56_free(), and vp6_decode_free().