mpegvideo_common.h File Reference

Detailed Description

The simplest mpeg encoder (well, it was the simplest!).

Go to the source code of this file.

Functions

int dct_quantize_c (MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)

int dct_quantize_trellis_c (MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)

void denoise_dct_c (MpegEncContext *s, DCTELEM *block)

void copy_picture (Picture *dst, Picture *src)

int alloc_picture (MpegEncContext *s, Picture *pic, int shared)

allocates a Picture The pixels are allocated/set by calling get_buffer() if shared=0

void MPV_common_defaults (MpegEncContext *s)

sets the given MpegEncContext to common defaults (same for encoding and decoding).

static void gmc1_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)

static void gmc_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture)

static int hpel_motion (MpegEncContext *s, uint8_t *dest, uint8_t *src, int field_based, int field_select, int src_x, int src_y, int width, int height, int stride, int h_edge_pos, int v_edge_pos, int w, int h, op_pixels_func *pix_op, int motion_x, int motion_y)

static av_always_inline void mpeg_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)

static void put_obmc (uint8_t *dst, uint8_t *src[5], int stride)

static void obmc_motion (MpegEncContext *s, uint8_t *dest, uint8_t *src, int src_x, int src_y, op_pixels_func *pix_op, int16_t mv[5][2])

static void qpel_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16], int motion_x, int motion_y, int h)

static void chroma_4mv_motion (MpegEncContext *s, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func *pix_op, int mx, int my)

h263 chroma 4mv motion compensation.

static void prefetch_motion (MpegEncContext *s, uint8_t **pix, int dir)

static void MPV_motion (MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])

motion compensation of a single macroblock

Function Documentation

int dct_quantize_c	(	MpegEncContext *	s,
		DCTELEM *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 3637 of file mpegvideo_enc.c.

int dct_quantize_trellis_c	(	MpegEncContext *	s,
		DCTELEM *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 2951 of file mpegvideo_enc.c.

Referenced by MPV_encode_init().

void denoise_dct_c	(	MpegEncContext *	s,
		DCTELEM *	block
	)

Definition at line 2927 of file mpegvideo_enc.c.

Referenced by MPV_encode_init().

void copy_picture	(	Picture *	dst,
		Picture *	src
	)

Definition at line 176 of file mpegvideo.c.

Referenced by select_input_picture().

int alloc_picture	(	MpegEncContext *	s,
		Picture *	pic,
		int	shared
	)

allocates a Picture The pixels are allocated/set by calling get_buffer() if shared=0

Definition at line 185 of file mpegvideo.c.

Referenced by load_input_picture(), MPV_frame_start(), and select_input_picture().

void MPV_common_defaults ( MpegEncContext * s )

sets the given MpegEncContext to common defaults (same for encoding and decoding).

the changed fields will not depend upon the prior state of the MpegEncContext.

Definition at line 393 of file mpegvideo.c.

Referenced by MPV_decode_defaults(), and MPV_encode_defaults().

static void gmc1_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture
	)			`[inline, static]`

Definition at line 58 of file mpegvideo_common.h.

Referenced by MPV_motion().

static void gmc_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture
	)			`[inline, static]`

Definition at line 144 of file mpegvideo_common.h.

Referenced by MPV_motion().

static int hpel_motion	(	MpegEncContext *	s,
		uint8_t *	dest,
		uint8_t *	src,
		int	field_based,
		int	field_select,
		int	src_x,
		int	src_y,
		int	width,
		int	height,
		int	stride,
		int	h_edge_pos,
		int	v_edge_pos,
		int	w,
		int	h,
		op_pixels_func *	pix_op,
		int	motion_x,
		int	motion_y
	)			`[inline, static]`

Definition at line 200 of file mpegvideo_common.h.

Referenced by MPV_motion(), and obmc_motion().

static av_always_inline void mpeg_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	field_based,
		int	bottom_field,
		int	field_select,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		int	motion_x,
		int	motion_y,
		int	h
	)			`[static]`

Definition at line 241 of file mpegvideo_common.h.

Referenced by MPV_motion().

static void put_obmc	(	uint8_t *	dst,
		uint8_t *	src[5],
		int	stride
	)			`[inline, static]`

Definition at line 356 of file mpegvideo_common.h.

Referenced by obmc_motion().

static void obmc_motion	(	MpegEncContext *	s,
		uint8_t *	dest,
		uint8_t *	src,
		int	src_x,
		int	src_y,
		op_pixels_func *	pix_op,
		int16_t	mv[5][2]
	)			`[inline, static]`

Definition at line 408 of file mpegvideo_common.h.

Referenced by MPV_motion().

static void qpel_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	field_based,
		int	bottom_field,
		int	field_select,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		qpel_mc_func(*)	qpix_op[16],
		int	motion_x,
		int	motion_y,
		int	h
	)			`[inline, static]`

Definition at line 437 of file mpegvideo_common.h.

Referenced by MPV_motion().

static void chroma_4mv_motion	(	MpegEncContext *	s,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture,
		op_pixels_func *	pix_op,
		int	mx,
		int	my
	)			`[inline, static]`

h263 chroma 4mv motion compensation.

Definition at line 527 of file mpegvideo_common.h.

Referenced by MPV_motion().

static void prefetch_motion	(	MpegEncContext *	s,
		uint8_t **	pix,
		int	dir
	)			`[inline, static]`

Definition at line 573 of file mpegvideo_common.h.

static void MPV_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	dir,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		qpel_mc_func(*)	qpix_op[16]
	)			`[inline, static]`

motion compensation of a single macroblock

Parameters:

	s	context
	dest_y	luma destination pointer
	dest_cb	chroma cb/u destination pointer
	dest_cr	chroma cr/v destination pointer
	dir	direction (0->forward, 1->backward)
	ref_picture	array[3] of pointers to the 3 planes of the reference picture
	pic_op	halfpel motion compensation function (average or put normally)
	pic_op	qpel motion compensation function (average or put normally) the motion vectors are taken from s->mv and the MV type from s->mv_type

Definition at line 597 of file mpegvideo_common.h.

Referenced by encode_mb_internal(), and MPV_decode_mb_internal().


Functions
int	dct_quantize_c (MpegEncContext s, DCTELEM block, int n, int qscale, int *overflow)
int	dct_quantize_trellis_c (MpegEncContext s, DCTELEM block, int n, int qscale, int *overflow)
void	denoise_dct_c (MpegEncContext s, DCTELEM block)
void	copy_picture (Picture dst, Picture src)
int	alloc_picture (MpegEncContext s, Picture pic, int shared)
	allocates a Picture The pixels are allocated/set by calling get_buffer() if shared=0
void	MPV_common_defaults (MpegEncContext *s)
	sets the given MpegEncContext to common defaults (same for encoding and decoding).
static void	gmc1_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, uint8_t **ref_picture)
static void	gmc_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, uint8_t **ref_picture)
static int	hpel_motion (MpegEncContext s, uint8_t dest, uint8_t src, int field_based, int field_select, int src_x, int src_y, int width, int height, int stride, int h_edge_pos, int v_edge_pos, int w, int h, op_pixels_func pix_op, int motion_x, int motion_y)
static av_always_inline void	mpeg_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int field_based, int bottom_field, int field_select, uint8_t *ref_picture, op_pixels_func(pix_op)[4], int motion_x, int motion_y, int h)
static void	put_obmc (uint8_t dst, uint8_t src[5], int stride)
static void	obmc_motion (MpegEncContext s, uint8_t dest, uint8_t src, int src_x, int src_y, op_pixels_func pix_op, int16_t mv[5][2])
static void	qpel_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int field_based, int bottom_field, int field_select, uint8_t *ref_picture, op_pixels_func(pix_op)[4], qpel_mc_func(*qpix_op)[16], int motion_x, int motion_y, int h)
static void	chroma_4mv_motion (MpegEncContext s, uint8_t dest_cb, uint8_t dest_cr, uint8_t ref_picture, op_pixels_func pix_op, int mx, int my)
	h263 chroma 4mv motion compensation.
static void	prefetch_motion (MpegEncContext s, uint8_t *pix, int dir)
static void	MPV_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int dir, uint8_t *ref_picture, op_pixels_func(pix_op)[4], qpel_mc_func(*qpix_op)[16])
	motion compensation of a single macroblock