X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvorbis.h;h=5ae20ac243d8a269d7af523e9850eede875ee705;hb=53abe32409f13687c864b3cda077a1aa906a2459;hp=5cdcb652af4a2f6cdbcbc31c0a367917772461ee;hpb=9f963af5a0dae0e24285dca8b3a2e936e42afd96;p=ffmpeg

diff --git a/libavcodec/vorbis.h b/libavcodec/vorbis.h
index 5cdcb652af4..5ae20ac243d 100644
--- a/libavcodec/vorbis.h
+++ b/libavcodec/vorbis.h
@@ -1,34 +1,50 @@
 /*
  * 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 Libav.
+ *
+ * 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 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,
+ * 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 this library; 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 vorbis_floor1_entry {
+    uint16_t x;
+    uint16_t sort;
+    uint16_t low;
+    uint16_t high;
+} vorbis_floor1_entry;
 
-typedef struct {
-    uint_fast16_t x;
-    uint_fast16_t sort;
-    uint_fast16_t low;
-    uint_fast16_t high;
-} floor1_entry_t;
+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, 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);
 
-void ff_vorbis_ready_floor1_list(floor1_entry_t * list, int values);
+#define ilog(i) av_log2(2*(i))
 
-#endif
+#endif /* AVCODEC_VORBIS_H */