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It is an extremely simple function that is only called once, so it should be inlined. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*
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* SpeedHQ encoder
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2003 Alex Beregszaszi
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* Copyright (c) 2003-2004 Michael Niedermayer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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/**
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* @file
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* SpeedHQ encoder.
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*/
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#ifndef AVCODEC_SPEEDHQENC_H
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#define AVCODEC_SPEEDHQENC_H
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#include <stdint.h>
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#include "mpegvideo.h"
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int ff_speedhq_encode_init(MpegEncContext *s);
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void ff_speedhq_encode_close(MpegEncContext *s);
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void ff_speedhq_encode_mb(MpegEncContext *s, int16_t block[12][64]);
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void ff_speedhq_encode_picture_header(MpegEncContext *s);
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void ff_speedhq_end_slice(MpegEncContext *s);
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static inline int ff_speedhq_mb_rows_in_slice(int slice_num, int mb_height)
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{
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return mb_height / 4 + (slice_num < (mb_height % 4));
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}
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static inline int ff_speedhq_mb_y_order_to_mb(int mb_y_order, int mb_height, int *first_in_slice)
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{
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int slice_num = 0;
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while (mb_y_order >= ff_speedhq_mb_rows_in_slice(slice_num, mb_height)) {
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mb_y_order -= ff_speedhq_mb_rows_in_slice(slice_num, mb_height);
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slice_num++;
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}
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*first_in_slice = (mb_y_order == 0);
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return mb_y_order * 4 + slice_num;
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}
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#endif /* AVCODEC_SPEEDHQENC_H */
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