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https://github.com/FFmpeg/FFmpeg.git
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26cc9db744
Up until now, quad VLCs are initialized with codes of type uint32_t, pair VLCs with codes of type uint16_t. There were two separate loops in the decoder's init function for each type of VLC. This commit unifies this: The type of the codes are now passed in as void * and the actual size of the codes is obtained from a table. This approach also allows to use the smallest type for each VLC code table: some quad tables actually fitted in uint16_t. This allows to remove about 7KB from the binary. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
/*
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* On2 Audio for Video Codec decoder
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*
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* Copyright (c) 2013 Konstantin Shishkov
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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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#ifndef AVCODEC_ON2AVCDATA_H
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#define AVCODEC_ON2AVCDATA_H
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#include <stdint.h>
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#define ON2AVC_MAX_BANDS 112
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#define ON2AVC_ESC_CB 15
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typedef struct On2AVCMode {
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int num_windows;
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int num_bands;
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const int *band_start;
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} On2AVCMode;
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extern const On2AVCMode ff_on2avc_modes_40[8];
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extern const On2AVCMode ff_on2avc_modes_44[8];
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#define ON2AVC_SCALE_DIFFS 121
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extern const uint32_t ff_on2avc_scale_diff_codes[];
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extern const uint8_t ff_on2avc_scale_diff_bits[];
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extern const void * const ff_on2avc_cb_codes[];
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extern const uint8_t * const ff_on2avc_cb_bits[];
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extern const uint16_t * const ff_on2avc_cb_syms[];
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extern const uint8_t ff_on2avc_cb_codes_sizes[];
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extern const int ff_on2avc_cb_elems[];
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extern const float ff_on2avc_window_long_32000[1024];
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extern const float ff_on2avc_window_long_24000[1024];
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extern const float ff_on2avc_window_short[128];
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extern const double ff_on2avc_tab_10_1[];
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extern const double ff_on2avc_tab_10_2[];
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extern const double ff_on2avc_tab_20_1[];
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extern const double ff_on2avc_tab_20_2[];
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extern const double ff_on2avc_tab_40_1[];
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extern const double ff_on2avc_tab_40_2[];
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extern const double ff_on2avc_tab_84_1[];
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extern const double ff_on2avc_tab_84_2[];
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extern const double ff_on2avc_tab_84_3[];
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extern const double ff_on2avc_tab_84_4[];
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extern const double * const ff_on2avc_tabs_4_10_1[4];
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extern const double * const ff_on2avc_tabs_4_10_2[4];
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extern const double * const ff_on2avc_tabs_9_20_1[9];
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extern const double * const ff_on2avc_tabs_9_20_2[9];
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extern const double * const ff_on2avc_tabs_19_40_1[19];
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extern const double * const ff_on2avc_tabs_19_40_2[19];
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extern const double * const ff_on2avc_tabs_20_84_1[20];
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extern const double * const ff_on2avc_tabs_20_84_2[20];
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extern const double * const ff_on2avc_tabs_20_84_3[20];
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extern const double * const ff_on2avc_tabs_20_84_4[20];
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extern const float ff_on2avc_ctab_1[2048];
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extern const float ff_on2avc_ctab_2[2048];
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extern const float ff_on2avc_ctab_3[2048];
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extern const float ff_on2avc_ctab_4[2048];
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#endif /* AVCODEC_ON2AVCDATA_H */
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