mpegpicture.c File Reference

#include <stdint.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "encode.h"
#include "motion_est.h"
#include "mpegpicture.h"
#include "mpegutils.h"
#include "threadframe.h"

Go to the source code of this file.

Macros
#define	MAKE_WRITABLE(table)
#define	EMU_EDGE_HEIGHT   (4 * 70)

Functions
static void av_noinline	free_picture_tables (Picture *pic)
static int	make_table_writable (AVBufferRef **ref)
static int	make_tables_writable (Picture *pic)
int	ff_mpeg_framesize_alloc (AVCodecContext *avctx, MotionEstContext *me, ScratchpadContext *sc, int linesize)
static int	alloc_frame_buffer (AVCodecContext *avctx, Picture *pic, MotionEstContext *me, ScratchpadContext *sc, int chroma_x_shift, int chroma_y_shift, int linesize, int uvlinesize)
	Allocate a frame buffer. More...
static int	alloc_picture_tables (AVCodecContext *avctx, Picture *pic, int encoding, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride)
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...
void	ff_mpeg_unref_picture (AVCodecContext *avctx, Picture *pic)
	Deallocate a picture; frees the picture tables in case they need to be reallocated anyway. More...
int	ff_update_picture_tables (Picture *dst, const Picture *src)
int	ff_mpeg_ref_picture (AVCodecContext *avctx, Picture *dst, Picture *src)
static int	pic_is_unused (Picture *pic)
static int	find_unused_picture (AVCodecContext *avctx, Picture *picture, int shared)
int	ff_find_unused_picture (AVCodecContext *avctx, Picture *picture, int shared)
void av_cold	ff_mpv_picture_free (AVCodecContext *avctx, Picture *pic)

Macro Definition Documentation

MAKE_WRITABLE

#define MAKE_WRITABLE

(

table

)

Value:

do {\
    int ret = make_table_writable(&pic->table); \
    if (ret < 0) \
        return ret; \
} while (0)

EMU_EDGE_HEIGHT

#define EMU_EDGE_HEIGHT   (4 * 70)

Function Documentation

free_picture_tables()

static void av_noinline free_picture_tables ( Picture *  pic )

static

Definition at line 35 of file mpegpicture.c.

Referenced by ff_alloc_picture(), ff_mpeg_unref_picture(), ff_mpv_picture_free(), and ff_update_picture_tables().

make_table_writable()

static int make_table_writable ( AVBufferRef **  ref )

static

Definition at line 50 of file mpegpicture.c.

make_tables_writable()

static int make_tables_writable ( Picture *  pic )

static

Definition at line 64 of file mpegpicture.c.

Referenced by ff_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().

alloc_frame_buffer()

static int alloc_frame_buffer ( AVCodecContext *  avctx, Picture *  pic, MotionEstContext *  me, ScratchpadContext *  sc, int  chroma_x_shift, int  chroma_y_shift, int  linesize, int  uvlinesize  )

static

Allocate a frame buffer.

Definition at line 127 of file mpegpicture.c.

Referenced by ff_alloc_picture().

alloc_picture_tables()

static int alloc_picture_tables ( AVCodecContext *  avctx, Picture *  pic, int  encoding, int  out_format, int  mb_stride, int  mb_width, int  mb_height, int  b8_stride  )

static

Definition at line 214 of file mpegpicture.c.

Referenced by ff_alloc_picture().

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

Definition at line 254 of file mpegpicture.c.

Referenced by alloc_picture().

ff_mpeg_unref_picture()

void ff_mpeg_unref_picture	(	AVCodecContext *	avctx,
		Picture *	pic
	)

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_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_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().

pic_is_unused()

static int pic_is_unused ( Picture *  pic )

inlinestatic

Definition at line 411 of file mpegpicture.c.

Referenced by find_unused_picture().

find_unused_picture()

static int find_unused_picture ( AVCodecContext *  avctx, Picture *  picture, int  shared  )

static

Definition at line 420 of file mpegpicture.c.

Referenced by ff_find_unused_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().

ff_mpv_picture_free()

void av_cold ff_mpv_picture_free	(	AVCodecContext *	avctx,
		Picture *	pic
	)

Definition at line 465 of file mpegpicture.c.

Referenced by ff_mpv_common_end().