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

Macros
#define	MAKE_WRITABLE(table)

#define	UPDATE_TABLE(table)

Functions
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. More...

int	ff_update_picture_tables (Picture dst, 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	ff_free_picture_tables (Picture *pic)

Macro Definition Documentation

◆ MAKE_WRITABLE

#define MAKE_WRITABLE ( table )

Value:

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

Referenced by make_tables_writable().

◆ UPDATE_TABLE

#define UPDATE_TABLE ( table )

Value:

do {                                                                          \
    if (src->table &&                                                         \
        (!dst->table || dst->table->buffer != src->table->buffer)) {          \
        av_buffer_unref(&dst->table);                                         \
        dst->table = av_buffer_ref(src->table);                               \
        if (!dst->table) {                                                    \
            ff_free_picture_tables(dst);                                      \
            return AVERROR(ENOMEM);                                           \
        }                                                                     \
    }                                                                         \
} while (0)

Referenced by ff_update_picture_tables().

Function Documentation

◆ make_tables_writable()

static int make_tables_writable ( Picture * pic )

static

Definition at line 32 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 57 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 95 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 181 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
	)