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47 lines
1.6 KiB
47 lines
1.6 KiB
/* |
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* AAC encoder main-type prediction |
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* Copyright (C) 2015 Rostislav Pehlivanov |
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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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* AAC encoder main prediction |
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* @author Rostislav Pehlivanov ( atomnuker gmail com ) |
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*/ |
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#ifndef AVCODEC_AACENC_PRED_H |
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#define AVCODEC_AACENC_PRED_H |
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#include "aacenc.h" |
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/* Every predictor group needs to get reset at least once in this many frames */ |
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#define PRED_RESET_FRAME_MIN 240 |
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/* Any frame with less than this amount of frames since last reset is ok */ |
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#define PRED_RESET_MIN 64 |
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/* Raise to filter any low frequency artifacts due to prediction */ |
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#define PRED_SFB_START 10 |
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void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce); |
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void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe); |
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void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce); |
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void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce); |
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#endif /* AVCODEC_AACENC_PRED_H */
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