imgconvert.c File Reference

misc image conversion routines More...

#include "avcodec.h"
#include "imgconvert.h"
#include "internal.h"
#include "mathops.h"
#include "libavutil/colorspace.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"

Go to the source code of this file.

Macros
#define	deinterlace_line_inplace   deinterlace_line_inplace_c
#define	deinterlace_line   deinterlace_line_c

Functions
void	avcodec_get_chroma_sub_sample (enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
static int	is_gray (const AVPixFmtDescriptor *desc)
int	avcodec_get_pix_fmt_loss (enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt, int has_alpha)
	Compute what kind of losses will occur when converting from one specific pixel format to another. More...
static enum AVPixelFormat	avcodec_find_best_pix_fmt1 (enum AVPixelFormat *pix_fmt_list, enum AVPixelFormat src_pix_fmt, int has_alpha, int loss_mask)
enum AVPixelFormat	avcodec_find_best_pix_fmt2 (enum AVPixelFormat *pix_fmt_list, enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
	Find the best pixel format to convert to given a certain source pixel format. More...
void	ff_shrink22 (uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
void	ff_shrink44 (uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
void	ff_shrink88 (uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
static int	is_yuv_planar (const AVPixFmtDescriptor *desc)
int	av_picture_crop (AVPicture *dst, const AVPicture *src, enum AVPixelFormat pix_fmt, int top_band, int left_band)
	Crop image top and left side. More...
int	av_picture_pad (AVPicture *dst, const AVPicture *src, int height, int width, enum AVPixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright, int *color)
	Pad image. More...
static void	deinterlace_line_c (uint8_t *dst, const uint8_t *lum_m4, const uint8_t *lum_m3, const uint8_t *lum_m2, const uint8_t *lum_m1, const uint8_t *lum, int size)
static void	deinterlace_line_inplace_c (uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum, int size)
static void	deinterlace_bottom_field (uint8_t *dst, int dst_wrap, const uint8_t *src1, int src_wrap, int width, int height)
static void	deinterlace_bottom_field_inplace (uint8_t *src1, int src_wrap, int width, int height)
int	avpicture_deinterlace (AVPicture *dst, const AVPicture *src, enum AVPixelFormat pix_fmt, int width, int height)
	deinterlace - if not supported return -1 More...

Detailed Description

misc image conversion routines

Definition in file imgconvert.c.

Macro Definition Documentation

#define deinterlace_line_inplace   deinterlace_line_inplace_c

Definition at line 345 of file imgconvert.c.

Referenced by deinterlace_bottom_field_inplace().

#define deinterlace_line   deinterlace_line_c

Definition at line 346 of file imgconvert.c.

Referenced by deinterlace_bottom_field().

Function Documentation

static int is_gray ( const AVPixFmtDescriptor *  desc )

static

Definition at line 49 of file imgconvert.c.

Referenced by avcodec_get_pix_fmt_loss().

static enum AVPixelFormat avcodec_find_best_pix_fmt1 ( enum AVPixelFormat *  pix_fmt_list, enum AVPixelFormat  src_pix_fmt, int  has_alpha, int  loss_mask  )

static

Definition at line 94 of file imgconvert.c.

Referenced by avcodec_find_best_pix_fmt2().

void ff_shrink22	(	uint8_t *	dst,
		int	dst_wrap,
		const uint8_t *	src,
		int	src_wrap,
		int	width,
		int	height
	)

Definition at line 163 of file imgconvert.c.

Referenced by ff_mpegvideoencdsp_init().

void ff_shrink44	(	uint8_t *	dst,
		int	dst_wrap,
		const uint8_t *	src,
		int	src_wrap,
		int	width,
		int	height
	)

Definition at line 196 of file imgconvert.c.

Referenced by ff_mpegvideoencdsp_init().

void ff_shrink88	(	uint8_t *	dst,
		int	dst_wrap,
		const uint8_t *	src,
		int	src_wrap,
		int	width,
		int	height
	)

Definition at line 227 of file imgconvert.c.

Referenced by ff_mpegvideoencdsp_init().

static int is_yuv_planar ( const AVPixFmtDescriptor *  desc )

inlinestatic

Definition at line 249 of file imgconvert.c.

Referenced by av_picture_crop(), and av_picture_pad().

static void deinterlace_line_c ( uint8_t *  dst, const uint8_t *  lum_m4, const uint8_t *  lum_m3, const uint8_t *  lum_m2, const uint8_t *  lum_m1, const uint8_t *  lum, int  size  )

static

Definition at line 349 of file imgconvert.c.

static void deinterlace_line_inplace_c ( uint8_t *  lum_m4, uint8_t *  lum_m3, uint8_t *  lum_m2, uint8_t *  lum_m1, uint8_t *  lum, int  size  )

static

Definition at line 374 of file imgconvert.c.

static void deinterlace_bottom_field ( uint8_t *  dst, int  dst_wrap, const uint8_t *  src1, int  src_wrap, int  width, int  height  )

static

Definition at line 401 of file imgconvert.c.

Referenced by avpicture_deinterlace().

static void deinterlace_bottom_field_inplace ( uint8_t *  src1, int  src_wrap, int  width, int  height  )

static

Definition at line 430 of file imgconvert.c.

Referenced by avpicture_deinterlace().