VC-1 and WMV3 decoder. More...

#include "vc1dsp.h"

Defines
#define	VC1_MSPEL_FILTER_16B(DIR, TYPE)
	Filter in case of 2 filters.
#define	VC1_MSPEL_MC(OP, OPNAME)
	Function used to do motion compensation with bicubic interpolation.
#define	op_put(a, b) a = av_clip_uint8(b)
#define	op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
#define	PUT_VC1_MSPEL(a, b)
#define	avg2(a, b) ((a+b+1)>>1)
Functions
static void	vc1_v_overlap_c (uint8_t *src, int stride)
	Apply overlap transform to horizontal edge.
static void	vc1_h_overlap_c (uint8_t *src, int stride)
	Apply overlap transform to vertical edge.
static void	vc1_v_s_overlap_c (DCTELEM top, DCTELEM bottom)
static void	vc1_h_s_overlap_c (DCTELEM left, DCTELEM right)
static av_always_inline int	vc1_filter_line (uint8_t *src, int stride, int pq)
	VC-1 in-loop deblocking filter for one line.
static void	vc1_loop_filter (uint8_t *src, int step, int stride, int len, int pq)
	VC-1 in-loop deblocking filter.
static void	vc1_v_loop_filter4_c (uint8_t *src, int stride, int pq)
static void	vc1_h_loop_filter4_c (uint8_t *src, int stride, int pq)
static void	vc1_v_loop_filter8_c (uint8_t *src, int stride, int pq)
static void	vc1_h_loop_filter8_c (uint8_t *src, int stride, int pq)
static void	vc1_v_loop_filter16_c (uint8_t *src, int stride, int pq)
static void	vc1_h_loop_filter16_c (uint8_t *src, int stride, int pq)
static void	vc1_inv_trans_8x8_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 8x8 block.
static void	vc1_inv_trans_8x8_c (DCTELEM block[64])
static void	vc1_inv_trans_8x4_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 8x4 part of block.
static void	vc1_inv_trans_8x4_c (uint8_t dest, int linesize, DCTELEM block)
static void	vc1_inv_trans_4x8_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 4x8 parts of block.
static void	vc1_inv_trans_4x8_c (uint8_t dest, int linesize, DCTELEM block)
static void	vc1_inv_trans_4x4_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 4x4 part of block.
static void	vc1_inv_trans_4x4_c (uint8_t dest, int linesize, DCTELEM block)
static av_always_inline int	vc1_mspel_filter (const uint8_t *src, int stride, int mode, int r)
	Filter used to interpolate fractional pel values.
static void	put_no_rnd_vc1_chroma_mc8_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)
static void	put_no_rnd_vc1_chroma_mc4_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)
static void	avg_no_rnd_vc1_chroma_mc8_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)
static void	sprite_h_c (uint8_t dst, const uint8_t src, int offset, int advance, int count)
static av_always_inline void	sprite_v_template (uint8_t dst, const uint8_t src1a, const uint8_t src1b, int offset1, int two_sprites, const uint8_t src2a, const uint8_t *src2b, int offset2, int alpha, int scaled, int width)
static void	sprite_v_single_c (uint8_t dst, const uint8_t src1a, const uint8_t *src1b, int offset, int width)
static void	sprite_v_double_noscale_c (uint8_t dst, const uint8_t src1a, const uint8_t *src2a, int alpha, int width)
static void	sprite_v_double_onescale_c (uint8_t dst, const uint8_t src1a, const uint8_t src1b, int offset1, const uint8_t src2a, int alpha, int width)
static void	sprite_v_double_twoscale_c (uint8_t dst, const uint8_t src1a, const uint8_t src1b, int offset1, const uint8_t src2a, const uint8_t *src2b, int offset2, int alpha, int width)
av_cold void	ff_vc1dsp_init (VC1DSPContext *dsp)

Detailed Description

VC-1 and WMV3 decoder.

Definition in file vc1dsp.c.

Define Documentation

#define avg2	(	a,
		b
	)		((a+b+1)>>1)

Definition at line 698 of file vc1dsp.c.

Referenced by avg_no_rnd_vc1_chroma_mc8_c().

#define op_avg	(	a,
		b
	)		a = (a + av_clip_uint8(b) + 1) >> 1

Definition at line 620 of file vc1dsp.c.

#define op_put	(	a,
		b
	)		a = av_clip_uint8(b)

Definition at line 619 of file vc1dsp.c.

#define PUT_VC1_MSPEL	(	a,
		b
	)

Value:

static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
     put_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \
}\
static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
     avg_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \
}

Definition at line 627 of file vc1dsp.c.

#define VC1_MSPEL_FILTER_16B	(	DIR,
		TYPE
	)

Value:

static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \
{                                                                       \
    switch(mode){                                                       \
    case 0: /* no shift - should not occur */                           \
        return 0;                                                       \
    case 1: /* 1/4 shift */                                             \
        return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \
    case 2: /* 1/2 shift */                                             \
        return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \
    case 3: /* 3/4 shift */                                             \
        return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \
    }                                                                   \
    return 0; /* should not occur */                                    \
}

Filter in case of 2 filters.

Definition at line 524 of file vc1dsp.c.

#define VC1_MSPEL_MC	(	OP,
		OPNAME
	)

Function used to do motion compensation with bicubic interpolation.

Definition at line 563 of file vc1dsp.c.

Referenced by VC1_HOR_16b_SHIFT2().

Function Documentation

static void avg_no_rnd_vc1_chroma_mc8_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)			`[static]`

Definition at line 699 of file vc1dsp.c.

av_cold void ff_vc1dsp_init ( VC1DSPContext * dsp )

Definition at line 783 of file vc1dsp.c.

Referenced by vc1_decode_init().

static void put_no_rnd_vc1_chroma_mc4_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)			`[static]`

Definition at line 678 of file vc1dsp.c.

static void put_no_rnd_vc1_chroma_mc8_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)			`[static]`

Definition at line 654 of file vc1dsp.c.

static void sprite_h_c	(	uint8_t *	dst,
		const uint8_t *	src,
		int	offset,
		int	advance,
		int	count
	)			`[static]`

Definition at line 725 of file vc1dsp.c.

static void sprite_v_double_noscale_c	(	uint8_t *	dst,
		const uint8_t *	src1a,
		const uint8_t *	src2a,
		int	alpha,
		int	width
	)			`[static]`

Definition at line 763 of file vc1dsp.c.

static void sprite_v_double_onescale_c	(	uint8_t *	dst,
		const uint8_t *	src1a,
		const uint8_t *	src1b,
		int	offset1,
		const uint8_t *	src2a,
		int	alpha,
		int	width
	)			`[static]`

Definition at line 768 of file vc1dsp.c.

static void sprite_v_double_twoscale_c	(	uint8_t *	dst,
		const uint8_t *	src1a,
		const uint8_t *	src1b,
		int	offset1,
		const uint8_t *	src2a,
		const uint8_t *	src2b,
		int	offset2,
		int	alpha,
		int	width
	)			`[static]`

Definition at line 774 of file vc1dsp.c.

static void sprite_v_single_c	(	uint8_t *	dst,
		const uint8_t *	src1a,
		const uint8_t *	src1b,
		int	offset,
		int	width
	)			`[static]`

Definition at line 758 of file vc1dsp.c.

static av_always_inline void sprite_v_template	(	uint8_t *	dst,
		const uint8_t *	src1a,
		const uint8_t *	src1b,
		int	offset1,
		int	two_sprites,
		const uint8_t *	src2a,
		const uint8_t *	src2b,
		int	offset2,
		int	alpha,
		int	scaled,
		int	width
	)			`[static]`

Definition at line 735 of file vc1dsp.c.

Referenced by sprite_v_double_noscale_c(), sprite_v_double_onescale_c(), sprite_v_double_twoscale_c(), and sprite_v_single_c().

static av_always_inline int vc1_filter_line	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

VC-1 in-loop deblocking filter for one line.

Parameters:

	src	source block type
	stride	block stride
	pq	block quantizer

Returns:: whether other 3 pairs should be filtered or not

See also:: 8.6

Definition at line 141 of file vc1dsp.c.

Referenced by vc1_loop_filter().

static void vc1_h_loop_filter16_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 224 of file vc1dsp.c.

static void vc1_h_loop_filter4_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 204 of file vc1dsp.c.

static void vc1_h_loop_filter8_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 214 of file vc1dsp.c.

static void vc1_h_overlap_c	(	uint8_t *	src,
		int	stride
	)			`[static]`

Apply overlap transform to vertical edge.

Definition at line 58 of file vc1dsp.c.

static void vc1_h_s_overlap_c	(	DCTELEM *	left,
		DCTELEM *	right
	)			`[static]`

Definition at line 107 of file vc1dsp.c.

static void vc1_inv_trans_4x4_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Definition at line 482 of file vc1dsp.c.

static void vc1_inv_trans_4x4_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Do inverse transform on 4x4 part of block.

Definition at line 467 of file vc1dsp.c.

static void vc1_inv_trans_4x8_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Definition at line 411 of file vc1dsp.c.

static void vc1_inv_trans_4x8_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Do inverse transform on 4x8 parts of block.

Definition at line 396 of file vc1dsp.c.

static void vc1_inv_trans_8x4_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Definition at line 340 of file vc1dsp.c.

static void vc1_inv_trans_8x4_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Do inverse transform on 8x4 part of block.

Definition at line 321 of file vc1dsp.c.

static void vc1_inv_trans_8x8_c ( DCTELEM block[64] ) [static]

Definition at line 250 of file vc1dsp.c.

static void vc1_inv_trans_8x8_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)			`[static]`

Do inverse transform on 8x8 block.

Definition at line 231 of file vc1dsp.c.

static void vc1_loop_filter	(	uint8_t *	src,
		int	step,
		int	stride,
		int	len,
		int	pq
	)			`[inline, static]`

VC-1 in-loop deblocking filter.

Parameters:

	src	source block type
	step	distance between horizontally adjacent elements
	stride	distance between vertically adjacent elements
	len	edge length to filter (4 or 8 pixels)
	pq	block quantizer

See also:: 8.6

Definition at line 183 of file vc1dsp.c.

Referenced by vc1_h_loop_filter16_c(), vc1_h_loop_filter4_c(), vc1_h_loop_filter8_c(), vc1_v_loop_filter16_c(), vc1_v_loop_filter4_c(), and vc1_v_loop_filter8_c().

static av_always_inline int vc1_mspel_filter	(	const uint8_t *	src,
		int	stride,
		int	mode,
		int	r
	)			`[static]`

Filter used to interpolate fractional pel values.

Definition at line 546 of file vc1dsp.c.

static void vc1_v_loop_filter16_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 219 of file vc1dsp.c.

static void vc1_v_loop_filter4_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 199 of file vc1dsp.c.

static void vc1_v_loop_filter8_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)			`[static]`

Definition at line 209 of file vc1dsp.c.

static void vc1_v_overlap_c	(	uint8_t *	src,
		int	stride
	)			`[static]`

Apply overlap transform to horizontal edge.

Definition at line 33 of file vc1dsp.c.

static void vc1_v_s_overlap_c	(	DCTELEM *	top,
		DCTELEM *	bottom
	)			`[static]`

Definition at line 81 of file vc1dsp.c.

libavcodec/vc1dsp.c File Reference

Defines

Functions

Detailed Description

Define Documentation

Function Documentation