libavcodec/h261enc.c File Reference

H.261 encoder. More...

#include "libavutil/avassert.h"
#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "h263.h"
#include "h261.h"
#include "h261data.h"

Go to the source code of this file.

Functions
static void	h261_encode_block (H261Context *h, DCTELEM *block, int n)
	Encode an 8x8 block.
int	ff_h261_get_picture_format (int width, int height)
void	ff_h261_encode_picture_header (MpegEncContext *s, int picture_number)
static void	h261_encode_gob_header (MpegEncContext *s, int mb_line)
	Encode a group of blocks header.
void	ff_h261_reorder_mb_index (MpegEncContext *s)
static void	h261_encode_motion (H261Context *h, int val)
static int	get_cbp (MpegEncContext *s, DCTELEM block[6][64])
void	ff_h261_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void	ff_h261_encode_init (MpegEncContext *s)
Variables
uint8_t	ff_h261_rl_table_store [2][2 *MAX_RUN+MAX_LEVEL+3]
AVCodec	ff_h261_encoder

---

Detailed Description

H.261 encoder.

Definition in file h261enc.c.

---

Function Documentation

void ff_h261_encode_init

(

MpegEncContext *

s

)

Definition at line 239 of file h261enc.c.

Referenced by ff_MPV_encode_init().

void ff_h261_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 157 of file h261enc.c.

Referenced by encode_mb_internal().

void ff_h261_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 53 of file h261enc.c.

Referenced by encode_picture().

int ff_h261_get_picture_format	(	int	width,
		int	height
	)

Definition at line 41 of file h261enc.c.

Referenced by ff_h261_encode_picture_header(), ff_h261_reorder_mb_index(), ff_MPV_encode_init(), and h261_encode_gob_header().

void ff_h261_reorder_mb_index

(

MpegEncContext *

s

)

Definition at line 108 of file h261enc.c.

Referenced by encode_thread().

static int get_cbp	(	MpegEncContext *	s,
		DCTELEM	block[6][64]
	)			[inline, static]

Definition at line 146 of file h261enc.c.

Referenced by ff_h261_encode_mb().

static void h261_encode_block	(	H261Context *	h,
		DCTELEM *	block,
		int	n
	)			[static]

Encode an 8x8 block.

Parameters:

	block	the 8x8 block
	n	block index (0-3 are luma, 4-5 are chroma)

Definition at line 259 of file h261enc.c.

Referenced by ff_h261_encode_mb().

static void h261_encode_gob_header	(	MpegEncContext *	s,
		int	mb_line
	)			[static]

Encode a group of blocks header.

Definition at line 90 of file h261enc.c.

Referenced by ff_h261_reorder_mb_index().

static void h261_encode_motion	(	H261Context *	h,
		int	val
	)			[static]

Definition at line 127 of file h261enc.c.

Referenced by ff_h261_encode_mb().

---

Variable Documentation

AVCodec ff_h261_encoder

Initial value:

 {
    .name           = "h261",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H261,
    .priv_data_size = sizeof(H261Context),
    .init           = ff_MPV_encode_init,
    .encode2        = ff_MPV_encode_picture,
    .close          = ff_MPV_encode_end,
    .pix_fmts       = (const enum PixelFormat[]){ PIX_FMT_YUV420P, PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("H.261"),
    .priv_class     = &h261_class,
}

Definition at line 327 of file h261enc.c.

uint8_t ff_h261_rl_table_store[2][2 *MAX_RUN+MAX_LEVEL+3]

Definition at line 34 of file h261.c.

Referenced by ff_h261_encode_init(), and h261_decode_init_vlc().