From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavcodec/mjpegenc.h | 61 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 ffmpeg/libavcodec/mjpegenc.h (limited to 'ffmpeg/libavcodec/mjpegenc.h') diff --git a/ffmpeg/libavcodec/mjpegenc.h b/ffmpeg/libavcodec/mjpegenc.h new file mode 100644 index 0000000..ce0c1cc --- /dev/null +++ b/ffmpeg/libavcodec/mjpegenc.h @@ -0,0 +1,61 @@ +/* + * MJPEG encoder + * Copyright (c) 2000, 2001 Fabrice Bellard + * Copyright (c) 2003 Alex Beregszaszi + * Copyright (c) 2003-2004 Michael Niedermayer + * + * Support for external huffman table, various fixes (AVID workaround), + * aspecting, new decode_frame mechanism and apple mjpeg-b support + * by Alex Beregszaszi + * + * 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 + * MJPEG encoder. + */ + +#ifndef AVCODEC_MJPEGENC_H +#define AVCODEC_MJPEGENC_H + +#include + +#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; + +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); +void ff_mjpeg_encode_stuffing(MpegEncContext *s); +void ff_mjpeg_encode_dc(MpegEncContext *s, int val, + uint8_t *huff_size, uint16_t *huff_code); +void ff_mjpeg_encode_mb(MpegEncContext *s, int16_t block[6][64]); + +#endif /* AVCODEC_MJPEGENC_H */ -- cgit v1.2.3