mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-04 15:28:19 +02:00
![Andreas Rheinhardt](/assets/img/avatar_default.png)
This is easy now that the H.261 encoder is the only user that initializes the non-VLC parts of ff_h261_rl_tcoeff. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/*
|
|
* H.261 codec
|
|
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
|
|
* Copyright (c) 2004 Maarten Daniels
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* H.261 codec.
|
|
*/
|
|
|
|
#ifndef AVCODEC_H261_H
|
|
#define AVCODEC_H261_H
|
|
|
|
#include "mpegvideo.h"
|
|
#include "rl.h"
|
|
|
|
/**
|
|
* H261Context
|
|
*/
|
|
typedef struct H261Context {
|
|
MpegEncContext s;
|
|
|
|
int current_mba;
|
|
int mba_diff;
|
|
int mtype;
|
|
int current_mv_x;
|
|
int current_mv_y;
|
|
int gob_number;
|
|
int gob_start_code_skipped; // 1 if gob start code is already read before gob header is read
|
|
} H261Context;
|
|
|
|
#define MB_TYPE_H261_FIL 0x800000
|
|
|
|
extern const uint8_t ff_h261_mba_code[35];
|
|
extern const uint8_t ff_h261_mba_bits[35];
|
|
extern const uint8_t ff_h261_mtype_code[10];
|
|
extern const uint8_t ff_h261_mtype_bits[10];
|
|
extern const int ff_h261_mtype_map[10];
|
|
extern const uint8_t ff_h261_mv_tab[17][2];
|
|
extern const uint8_t ff_h261_cbp_tab[63][2];
|
|
extern RLTable ff_h261_rl_tcoeff;
|
|
|
|
void ff_h261_loop_filter(MpegEncContext *s);
|
|
|
|
int ff_h261_get_picture_format(int width, int height);
|
|
void ff_h261_reorder_mb_index(MpegEncContext *s);
|
|
void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64],
|
|
int motion_x, int motion_y);
|
|
void ff_h261_encode_picture_header(MpegEncContext *s, int picture_number);
|
|
void ff_h261_encode_init(MpegEncContext *s);
|
|
|
|
#endif /* AVCODEC_H261_H */
|