diff options
Diffstat (limited to 'libavcodec/psymodel.h')
-rw-r--r-- | libavcodec/psymodel.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libavcodec/psymodel.h b/libavcodec/psymodel.h index 1cc30668e4..e9be1f6fa5 100644 --- a/libavcodec/psymodel.h +++ b/libavcodec/psymodel.h @@ -2,20 +2,20 @@ * audio encoder psychoacoustic model * Copyright (C) 2008 Konstantin Shishkov * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -29,6 +29,8 @@ /** maximum number of channels */ #define PSY_MAX_CHANS 20 +#define AAC_CUTOFF(s) ((s)->bit_rate ? FFMIN3(4000 + (s)->bit_rate/8, 12000 + (s)->bit_rate/32, (s)->sample_rate / 2) : ((s)->sample_rate / 2)) + /** * single band psychoacoustic information */ @@ -36,8 +38,7 @@ typedef struct FFPsyBand { int bits; float energy; float threshold; - float distortion; - float perceptual_weight; + float spread; /* Energy spread over the band */ } FFPsyBand; /** @@ -65,6 +66,7 @@ typedef struct FFPsyWindowInfo { int window_shape; ///< window shape (sine/KBD/whatever) int num_windows; ///< number of windows in a frame int grouping[8]; ///< window grouping (for e.g. AAC) + float clipping[8]; ///< maximum absolute normalized intensity in the given window for clip avoidance int *window_sizes; ///< sequence of window sizes inside one frame (for eg. WMA) } FFPsyWindowInfo; |