be1e6e7503
* qatar/master: mpegvideo_enc: use the AVFrame API properly. ffv1: use the AVFrame API properly. jpegls: use the AVFrame API properly. huffyuv: use the AVFrame API properly. Conflicts: libavcodec/ffv1.c libavcodec/ffv1.h libavcodec/ffv1dec.c libavcodec/ffv1enc.c Changes to ffv1 are more redone than merged due to them being based on an ancient codebase and a good part of that having being done already as well. Merged-by: Michael Niedermayer <michaelni@gmx.at>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
|
|
* the algorithm used
|
|
*
|
|
* 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
|
|
* huffyuv codec for libavcodec.
|
|
*/
|
|
|
|
#ifndef AVCODEC_HUFFYUV_H
|
|
#define AVCODEC_HUFFYUV_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "avcodec.h"
|
|
#include "dsputil.h"
|
|
#include "get_bits.h"
|
|
#include "put_bits.h"
|
|
|
|
#define VLC_BITS 11
|
|
|
|
#if HAVE_BIGENDIAN
|
|
#define B 3
|
|
#define G 2
|
|
#define R 1
|
|
#define A 0
|
|
#else
|
|
#define B 0
|
|
#define G 1
|
|
#define R 2
|
|
#define A 3
|
|
#endif
|
|
|
|
typedef enum Predictor {
|
|
LEFT = 0,
|
|
PLANE,
|
|
MEDIAN,
|
|
} Predictor;
|
|
|
|
typedef struct HYuvContext {
|
|
AVCodecContext *avctx;
|
|
Predictor predictor;
|
|
GetBitContext gb;
|
|
PutBitContext pb;
|
|
int interlaced;
|
|
int decorrelate;
|
|
int bitstream_bpp;
|
|
int version;
|
|
int yuy2; //use yuy2 instead of 422P
|
|
int bgr32; //use bgr32 instead of bgr24
|
|
int width, height;
|
|
int flags;
|
|
int context;
|
|
int picture_number;
|
|
int last_slice_end;
|
|
uint8_t *temp[3];
|
|
uint64_t stats[3][256];
|
|
uint8_t len[3][256];
|
|
uint32_t bits[3][256];
|
|
uint32_t pix_bgr_map[1<<VLC_BITS];
|
|
VLC vlc[6]; //Y,U,V,YY,YU,YV
|
|
uint8_t *bitstream_buffer;
|
|
unsigned int bitstream_buffer_size;
|
|
DSPContext dsp;
|
|
} HYuvContext;
|
|
|
|
void ff_huffyuv_common_init(AVCodecContext *s);
|
|
void ff_huffyuv_common_end(HYuvContext *s);
|
|
int ff_huffyuv_alloc_temp(HYuvContext *s);
|
|
int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table);
|
|
|
|
#endif /* AVCODEC_HUFFYUV_H */
|