X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvorbis.h;h=5ae20ac243d8a269d7af523e9850eede875ee705;hb=0652e024c680420d298cdf3719d0a0c030173fe3;hp=cda909aa9efb316be4b270afb5694adb05f0ccf9;hpb=b78e7197a81e193827cf2408fe25bc1f14843a72;p=ffmpeg diff --git a/libavcodec/vorbis.h b/libavcodec/vorbis.h index cda909aa9ef..5ae20ac243d 100644 --- a/libavcodec/vorbis.h +++ b/libavcodec/vorbis.h @@ -1,43 +1,50 @@ /* * copyright (c) 2006 Oded Shimon * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef VORBIS_H -#define VORBIS_H +#ifndef AVCODEC_VORBIS_H +#define AVCODEC_VORBIS_H #include "avcodec.h" extern const float ff_vorbis_floor1_inverse_db_table[256]; -extern const float * ff_vorbis_vwin[8]; +extern const float * const ff_vorbis_vwin[8]; +extern const uint8_t ff_vorbis_channel_layout_offsets[8][8]; +extern const uint8_t ff_vorbis_encoding_channel_layout_offsets[8][8]; +extern const uint64_t ff_vorbis_channel_layouts[9]; -typedef struct { - uint_fast16_t x; - uint_fast16_t sort; - uint_fast16_t low; - uint_fast16_t high; -} floor1_entry_t; +typedef struct vorbis_floor1_entry { + uint16_t x; + uint16_t sort; + uint16_t low; + uint16_t high; +} vorbis_floor1_entry; -void ff_vorbis_ready_floor1_list(floor1_entry_t * list, int values); +int ff_vorbis_ready_floor1_list(AVCodecContext *avctx, + vorbis_floor1_entry *list, int values); unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n); // x^(1/n) -int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, uint_fast32_t num); -void ff_vorbis_floor1_render_list(floor1_entry_t * list, int values, uint_fast16_t * y_list, int * flag, int multiplier, float * out, int samples); +int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num); +void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values, + uint16_t *y_list, int *flag, + int multiplier, float * out, int samples); +void ff_vorbis_inverse_coupling(float *mag, float *ang, intptr_t blocksize); #define ilog(i) av_log2(2*(i)) -#endif +#endif /* AVCODEC_VORBIS_H */