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https://gitee.com/openharmony/third_party_ffmpeg
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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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* RTJpeg decoding functions
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* copyright (c) 2006 Reimar Doeffinger
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_RTJPEG_H
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#define AVCODEC_RTJPEG_H
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#include <stdint.h>
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#include "libavutil/mem.h"
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#include "idctdsp.h"
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#define RTJPEG_FILE_VERSION 0
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#define RTJPEG_HEADER_SIZE 12
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typedef struct RTJpegContext {
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int w, h;
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IDCTDSPContext idsp;
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uint8_t scan[64];
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uint32_t lquant[64];
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uint32_t cquant[64];
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DECLARE_ALIGNED(16, int16_t, block)[64];
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} RTJpegContext;
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void ff_rtjpeg_init(RTJpegContext *c, AVCodecContext *avctx);
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void ff_rtjpeg_decode_init(RTJpegContext *c, int width, int height,
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const uint32_t *lquant, const uint32_t *cquant);
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int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
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const uint8_t *buf, int buf_size);
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#endif /* AVCODEC_RTJPEG_H */
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