FFmpeg/libavcodec/huffyuv.h
Michael Niedermayer be1e6e7503 Merge remote-tracking branch 'qatar/master'
* 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>
2013-11-17 13:55:50 +01:00

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 */