mpegpicture.h File Reference

#include <stdint.h>
#include "libavutil/frame.h"
#include "avcodec.h"
#include "motion_est.h"
#include "threadframe.h"

Go to the source code of this file.

Data Structures
struct	ScratchpadContext
struct	Picture
	Picture. More...

Macros
#define	MPEGVIDEO_MAX_PLANES   4
#define	MAX_PICTURE_COUNT   36
#define	EDGE_WIDTH   16

Functions
int	ff_alloc_picture (AVCodecContext *avctx, Picture *pic, MotionEstContext *me, ScratchpadContext *sc, int shared, int encoding, int chroma_x_shift, int chroma_y_shift, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride, ptrdiff_t *linesize, ptrdiff_t *uvlinesize)
	Allocate a Picture. More...
int	ff_mpeg_framesize_alloc (AVCodecContext *avctx, MotionEstContext *me, ScratchpadContext *sc, int linesize)
int	ff_mpeg_ref_picture (AVCodecContext *avctx, Picture *dst, Picture *src)
void	ff_mpeg_unref_picture (AVCodecContext *avctx, Picture *picture)
	Deallocate a picture; frees the picture tables in case they need to be reallocated anyway. More...
void	ff_mpv_picture_free (AVCodecContext *avctx, Picture *pic)
int	ff_update_picture_tables (Picture *dst, const Picture *src)
int	ff_find_unused_picture (AVCodecContext *avctx, Picture *picture, int shared)

Macro Definition Documentation

MPEGVIDEO_MAX_PLANES

#define MPEGVIDEO_MAX_PLANES   4

Definition at line 32 of file mpegpicture.h.

MAX_PICTURE_COUNT

#define MAX_PICTURE_COUNT   36

Definition at line 33 of file mpegpicture.h.

EDGE_WIDTH

#define EDGE_WIDTH   16

Definition at line 34 of file mpegpicture.h.

Function Documentation

ff_alloc_picture()

int ff_alloc_picture	(	AVCodecContext *	avctx,
		Picture *	pic,
		MotionEstContext *	me,
		ScratchpadContext *	sc,
		int	shared,
		int	encoding,
		int	chroma_x_shift,
		int	chroma_y_shift,
		int	out_format,
		int	mb_stride,
		int	mb_width,
		int	mb_height,
		int	b8_stride,
		ptrdiff_t *	linesize,
		ptrdiff_t *	uvlinesize
	)

Allocate a Picture.

The pixels are allocated/set by calling get_buffer() if shared = 0.

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

Definition at line 254 of file mpegpicture.c.

Referenced by alloc_picture().

ff_mpeg_framesize_alloc()

int ff_mpeg_framesize_alloc	(	AVCodecContext *	avctx,
		MotionEstContext *	me,
		ScratchpadContext *	sc,
		int	linesize
	)

Definition at line 87 of file mpegpicture.c.

Referenced by alloc_frame_buffer(), ff_mpeg_update_thread_context(), and ff_update_duplicate_context().

ff_mpeg_ref_picture()

int ff_mpeg_ref_picture	(	AVCodecContext *	avctx,
		Picture *	dst,
		Picture *	src
	)

Definition at line 371 of file mpegpicture.c.

Referenced by ff_mpeg_update_thread_context(), ff_mpv_frame_start(), and frame_start().

ff_mpeg_unref_picture()

void ff_mpeg_unref_picture	(	AVCodecContext *	avctx,
		Picture *	picture
	)

Deallocate a picture; frees the picture tables in case they need to be reallocated anyway.

Definition at line 312 of file mpegpicture.c.

Referenced by alloc_frame_buffer(), ff_alloc_picture(), ff_find_unused_picture(), ff_mpeg_flush(), ff_mpeg_ref_picture(), ff_mpeg_update_thread_context(), ff_mpv_encode_picture(), ff_mpv_frame_start(), ff_mpv_picture_free(), and frame_start().

ff_mpv_picture_free()

void ff_mpv_picture_free	(	AVCodecContext *	avctx,
		Picture *	pic
	)

Definition at line 465 of file mpegpicture.c.

Referenced by ff_mpv_common_end().

ff_update_picture_tables()

int ff_update_picture_tables	(	Picture *	dst,
		const Picture *	src
	)

Definition at line 339 of file mpegpicture.c.

Referenced by ff_mpeg_ref_picture().

ff_find_unused_picture()

int ff_find_unused_picture	(	AVCodecContext *	avctx,
		Picture *	picture,
		int	shared
	)

Definition at line 453 of file mpegpicture.c.

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