mpegpicture.h File Reference

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

Go to the source code of this file.

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

Macros
#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. More...
void	ff_free_picture_tables (Picture *pic)
int	ff_update_picture_tables (Picture *dst, Picture *src)
int	ff_find_unused_picture (AVCodecContext *avctx, Picture *picture, int shared)

Macro Definition Documentation

MAX_PICTURE_COUNT

#define MAX_PICTURE_COUNT   36

Definition at line 32 of file mpegpicture.h.

Referenced by ff_find_unused_picture(), ff_mpeg_flush(), ff_mpeg_update_thread_context(), ff_mpv_common_end(), ff_mpv_common_frame_size_change(), ff_mpv_common_init(), ff_mpv_encode_init(), ff_mpv_encode_picture(), ff_mpv_frame_start(), find_unused_picture(), load_input_picture(), and select_input_picture().

EDGE_WIDTH

#define EDGE_WIDTH   16

Definition at line 33 of file mpegpicture.h.

Referenced by alloc_frame_buffer(), encode_frame(), ff_snow_get_buffer(), ff_snow_release_buffer(), frame_end(), get_buffer_with_edge(), halfpel_interpol(), interpolate_refplane(), and mc_subpel().

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 231 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 57 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 361 of file mpegpicture.c.

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

ff_mpeg_unref_picture()

void ff_mpeg_unref_picture	(	AVCodecContext *	avctx,
		Picture *	picture
	)

Deallocate a picture.

Definition at line 294 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_common_end(), ff_mpv_encode_end(), ff_mpv_encode_picture(), ff_mpv_frame_start(), frame_start(), and select_input_picture().

ff_free_picture_tables()

void ff_free_picture_tables

(

Picture *

pic

)

Definition at line 460 of file mpegpicture.c.

Referenced by ff_alloc_picture(), ff_find_unused_picture(), ff_mpeg_unref_picture(), ff_mpv_common_end(), and ff_mpv_encode_end().

ff_update_picture_tables()

int ff_update_picture_tables	(	Picture *	dst,
		Picture *	src
	)

Definition at line 316 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 446 of file mpegpicture.c.

Referenced by ff_h263_decode_frame(), ff_mpv_frame_start(), load_input_picture(), and select_input_picture().