From 681f5c1271304d14f1825d32bdf30a3c83029d59 Mon Sep 17 00:00:00 2001 From: Bartlomiej Wolowiec Date: Sun, 8 Jun 2008 20:45:18 +0000 Subject: Separating from nellymoserdec.c parts required by encoder Originally committed as revision 13713 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/nellymoser.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 libavcodec/nellymoser.h (limited to 'libavcodec/nellymoser.h') diff --git a/libavcodec/nellymoser.h b/libavcodec/nellymoser.h new file mode 100644 index 0000000000..4f415dedb9 --- /dev/null +++ b/libavcodec/nellymoser.h @@ -0,0 +1,57 @@ +/* + * Common code between Nellymoser encoder and decoder + * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5, + * 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and + * 520e17cd55896441042b14df2566a6eb610ed444 + * Copyright (c) 2007 Loic Minier + * Benjamin Larsson + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/** + * @file nellymoser.h + * The 3 alphanumeric copyright notices are md5summed they are from the original + * implementors. The original code is available from http://code.google.com/p/nelly2pcm/ + */ + +#ifndef FFMPEG_NELLYMOSER_H +#define FFMPEG_NELLYMOSER_H + +#include "avcodec.h" + +#define NELLY_BANDS 23 +#define NELLY_BLOCK_LEN 64 +#define NELLY_HEADER_BITS 116 +#define NELLY_DETAIL_BITS 198 +#define NELLY_BUF_LEN 128 +#define NELLY_FILL_LEN 124 +#define NELLY_BIT_CAP 6 +#define NELLY_BASE_OFF 4228 +#define NELLY_BASE_SHIFT 19 +#define NELLY_SAMPLES (2 * NELLY_BUF_LEN) + +extern const float ff_nelly_dequantization_table[127]; +extern const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS]; +extern const uint16_t ff_nelly_init_table[64]; +extern const int16_t ff_nelly_delta_table[32]; + +void ff_nelly_get_sample_bits(const float *buf, int *bits); + +#endif -- cgit v1.2.3