/*
* copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library 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 this library; 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
*/
-#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 int64_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;
+} vorbis_floor1_entry;
-void ff_vorbis_ready_floor1_list(floor1_entry_t * list, int values);
+void ff_vorbis_ready_floor1_list(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);
-
-static void render_line(int x0, int y0, int x1, int y1, float * buf, int n) {
- int dy = y1 - y0;
- int adx = x1 - x0;
- int ady = ABS(dy);
- int base = dy / adx;
- int x = x0;
- int y = y0;
- int err = 0;
- int sy;
- if (dy < 0) sy = base - 1;
- else sy = base + 1;
- ady = ady - ABS(base) * adx;
- if (x >= n) return;
- buf[x] = ff_vorbis_floor1_inverse_db_table[y];
- for (x = x0 + 1; x < x1; x++) {
- if (x >= n) return;
- err += ady;
- if (err >= adx) {
- err -= adx;
- y += sy;
- } else {
- y += base;
- }
- buf[x] = ff_vorbis_floor1_inverse_db_table[y];
- }
-}
+void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
+ uint_fast16_t * y_list, int * flag,
+ int multiplier, float * out, int samples);
+void vorbis_inverse_coupling(float *mag, float *ang, int blocksize);
#define ilog(i) av_log2(2*(i))
-#endif
+#endif /* AVCODEC_VORBIS_H */