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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 <stdint.h>
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#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); |
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void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,
ScanTable *intra_scantable, |
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uint16_t luma_intra_matrix[64],
uint16_t chroma_intra_matrix[64]); |
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void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits); |
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void ff_mjpeg_escape_FF(PutBitContext *pb, int start); |
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void ff_mjpeg_encode_stuffing(MpegEncContext *s); |
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void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[3], int vsample[3]); |
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void ff_mjpeg_encode_dc(PutBitContext *pb, int val, |
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uint8_t *huff_size, uint16_t *huff_code); |
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void ff_mjpeg_encode_mb(MpegEncContext *s, int16_t block[6][64]); |
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#endif /* AVCODEC_MJPEGENC_H */ |