forked from KolibriOS/kolibrios
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
|
/*
|
||
|
|
* AAC encoder main-type prediction
|
||
|
|
* Copyright (C) 2015 Rostislav Pehlivanov
|
||
|
|
*
|
||
|
|
* This file is part of FFmpeg.
|
||
|
|
*
|
||
|
|
* FFmpeg is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with FFmpeg; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* AAC encoder main prediction
|
||
|
|
* @author Rostislav Pehlivanov ( atomnuker gmail com )
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef AVCODEC_AACENC_PRED_H
|
||
|
|
#define AVCODEC_AACENC_PRED_H
|
||
|
|
|
||
|
|
#include "aacenc.h"
|
||
|
|
|
||
|
|
/* Every predictor group needs to get reset at least once in this many frames */
|
||
|
|
#define PRED_RESET_FRAME_MIN 240
|
||
|
|
|
||
|
|
/* Any frame with less than this amount of frames since last reset is ok */
|
||
|
|
#define PRED_RESET_MIN 64
|
||
|
|
|
||
|
|
/* Raise to filter any low frequency artifacts due to prediction */
|
||
|
|
#define PRED_SFB_START 10
|
||
|
|
|
||
|
|
void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce);
|
||
|
|
void ff_aac_adjust_common_prediction(AACEncContext *s, ChannelElement *cpe);
|
||
|
|
void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce);
|
||
|
|
void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce);
|
||
|
|
|
||
|
|
#endif /* AVCODEC_AACENC_PRED_H */
|