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Diffstat (limited to 'thirdparty/opus/celt/entenc.h')
| -rw-r--r-- | thirdparty/opus/celt/entenc.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/thirdparty/opus/celt/entenc.h b/thirdparty/opus/celt/entenc.h deleted file mode 100644 index 796bc4d572..0000000000 --- a/thirdparty/opus/celt/entenc.h +++ /dev/null @@ -1,110 +0,0 @@ -/* Copyright (c) 2001-2011 Timothy B. Terriberry - Copyright (c) 2008-2009 Xiph.Org Foundation */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - - Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER - OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -#if !defined(_entenc_H) -# define _entenc_H (1) -# include <stddef.h> -# include "entcode.h" - -/*Initializes the encoder. - _buf: The buffer to store output bytes in. - _size: The size of the buffer, in chars.*/ -void ec_enc_init(ec_enc *_this,unsigned char *_buf,opus_uint32 _size); -/*Encodes a symbol given its frequency information. - The frequency information must be discernable by the decoder, assuming it - has read only the previous symbols from the stream. - It is allowable to change the frequency information, or even the entire - source alphabet, so long as the decoder can tell from the context of the - previously encoded information that it is supposed to do so as well. - _fl: The cumulative frequency of all symbols that come before the one to be - encoded. - _fh: The cumulative frequency of all symbols up to and including the one to - be encoded. - Together with _fl, this defines the range [_fl,_fh) in which the - decoded value will fall. - _ft: The sum of the frequencies of all the symbols*/ -void ec_encode(ec_enc *_this,unsigned _fl,unsigned _fh,unsigned _ft); - -/*Equivalent to ec_encode() with _ft==1<<_bits.*/ -void ec_encode_bin(ec_enc *_this,unsigned _fl,unsigned _fh,unsigned _bits); - -/* Encode a bit that has a 1/(1<<_logp) probability of being a one */ -void ec_enc_bit_logp(ec_enc *_this,int _val,unsigned _logp); - -/*Encodes a symbol given an "inverse" CDF table. - _s: The index of the symbol to encode. - _icdf: The "inverse" CDF, such that symbol _s falls in the range - [_s>0?ft-_icdf[_s-1]:0,ft-_icdf[_s]), where ft=1<<_ftb. - The values must be monotonically non-increasing, and the last value - must be 0. - _ftb: The number of bits of precision in the cumulative distribution.*/ -void ec_enc_icdf(ec_enc *_this,int _s,const unsigned char *_icdf,unsigned _ftb); - -/*Encodes a raw unsigned integer in the stream. - _fl: The integer to encode. - _ft: The number of integers that can be encoded (one more than the max). - This must be at least one, and no more than 2**32-1.*/ -void ec_enc_uint(ec_enc *_this,opus_uint32 _fl,opus_uint32 _ft); - -/*Encodes a sequence of raw bits in the stream. - _fl: The bits to encode. - _ftb: The number of bits to encode. - This must be between 1 and 25, inclusive.*/ -void ec_enc_bits(ec_enc *_this,opus_uint32 _fl,unsigned _ftb); - -/*Overwrites a few bits at the very start of an existing stream, after they - have already been encoded. - This makes it possible to have a few flags up front, where it is easy for - decoders to access them without parsing the whole stream, even if their - values are not determined until late in the encoding process, without having - to buffer all the intermediate symbols in the encoder. - In order for this to work, at least _nbits bits must have already been - encoded using probabilities that are an exact power of two. - The encoder can verify the number of encoded bits is sufficient, but cannot - check this latter condition. - _val: The bits to encode (in the least _nbits significant bits). - They will be decoded in order from most-significant to least. - _nbits: The number of bits to overwrite. - This must be no more than 8.*/ -void ec_enc_patch_initial_bits(ec_enc *_this,unsigned _val,unsigned _nbits); - -/*Compacts the data to fit in the target size. - This moves up the raw bits at the end of the current buffer so they are at - the end of the new buffer size. - The caller must ensure that the amount of data that's already been written - will fit in the new size. - _size: The number of bytes in the new buffer. - This must be large enough to contain the bits already written, and - must be no larger than the existing size.*/ -void ec_enc_shrink(ec_enc *_this,opus_uint32 _size); - -/*Indicates that there are no more symbols to encode. - All reamining output bytes are flushed to the output buffer. - ec_enc_init() must be called before the encoder can be used again.*/ -void ec_enc_done(ec_enc *_this); - -#endif |