mirror of
https://github.com/librempeg/librempeg
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1df0b06162
There is no point in populating NuvContext with another DSPContext. Also split static and dynamic initialization bits to avoid running the static initialization parts over and over.
49 lines
1.5 KiB
C
49 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 "dsputil.h"
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#include "libavutil/mem.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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DSPContext dsp;
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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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