1 files changed, 50 insertions, 0 deletions
diff --git a/ffmpeg1/libavcodec/vorbis.h b/ffmpeg1/libavcodec/vorbis.h
new file mode 100644
index 0000000..98dd14f
--- /dev/null
+++ b/ffmpeg1/libavcodec/vorbis.h
@@ -0,0 +1,50 @@
+/*
+ * copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_VORBIS_H
+#define AVCODEC_VORBIS_H
+
+#include "avcodec.h"
+
+extern const float ff_vorbis_floor1_inverse_db_table[256];
+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;
+
+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);
+
+#define ilog(i) av_log2(2*(i))
+
+#endif /* AVCODEC_VORBIS_H */