libavcodec/mjpegenc.h
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 /*
  * MJPEG encoder
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  * Copyright (c) 2000, 2001 Fabrice Bellard
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  * Copyright (c) 2003 Alex Beregszaszi
  * Copyright (c) 2003-2004 Michael Niedermayer
  *
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  * Support for external huffman table, various fixes (AVID workaround),
  * aspecting, new decode_frame mechanism and apple mjpeg-b support
  *                                  by Alex Beregszaszi
  *
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  * 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
  */
 
 /**
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  * @file
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  * MJPEG encoder.
  */
 
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 #ifndef AVCODEC_MJPEGENC_H
 #define AVCODEC_MJPEGENC_H
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 #include "dsputil.h"
 #include "mpegvideo.h"
 
 typedef struct MJpegContext {
     uint8_t huff_size_dc_luminance[12]; //FIXME use array [3] instead of lumi / chrom, for easier addressing
     uint16_t huff_code_dc_luminance[12];
     uint8_t huff_size_dc_chrominance[12];
     uint16_t huff_code_dc_chrominance[12];
 
     uint8_t huff_size_ac_luminance[256];
     uint16_t huff_code_ac_luminance[256];
     uint8_t huff_size_ac_chrominance[256];
     uint16_t huff_code_ac_chrominance[256];
 } MJpegContext;
 
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 int  ff_mjpeg_encode_init(MpegEncContext *s);
 void ff_mjpeg_encode_close(MpegEncContext *s);
 void ff_mjpeg_encode_picture_header(MpegEncContext *s);
 void ff_mjpeg_encode_picture_trailer(MpegEncContext *s);
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 void ff_mjpeg_encode_stuffing(MpegEncContext *s);
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 void ff_mjpeg_encode_dc(MpegEncContext *s, int val,
                         uint8_t *huff_size, uint16_t *huff_code);
 void ff_mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]);
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 #endif /* AVCODEC_MJPEGENC_H */