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Diffstat (limited to 'libopenjpeg/mqc.h')
| -rw-r--r-- | libopenjpeg/mqc.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/libopenjpeg/mqc.h b/libopenjpeg/mqc.h new file mode 100644 index 00000000..3d29a6d2 --- /dev/null +++ b/libopenjpeg/mqc.h @@ -0,0 +1,127 @@ +/* + * Copyright (c) 2001-2002, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + */ + +#ifndef __MQC_H +#define __MQC_H + +/* + * Return the number of bytes written/read since initialisation + */ +int mqc_numbytes(); + +/* + * Reset the states of all the context of the coder/decoder + * (each context is set to a state where 0 and 1 are more or less equiprobable) + */ +void mqc_resetstates(); + +/* + * Set the state of a particular context + * ctxno: number that identifies the context + * msb: the MSB of the new state of the context + * prob: number that identifies the probability of the symbols for the new state of the context + */ +void mqc_setstate(int ctxno, int msb, int prob); + +/* + * Initialize the encoder + * bp: pointer to the start of the buffer where the bytes will be written + */ +void mqc_init_enc(unsigned char *bp); + +/* + * Set the current context used for coding/decoding + * ctxno: number that identifies the context + */ +void mqc_setcurctx(int ctxno); + +/* + * Encode a bit + * d: bit to encode (0 or 1) + */ +void mqc_encode(int d); + +/* + * Flush the encoder, so that all remaining data is written + */ +void mqc_flush(); + +/* + * BYPASS mode switch + */ +void mqc_bypass_init_enc(); + +/* + * BYPASS mode switch + */ +void mqc_bypass_enc(); + +/* + * BYPASS mode switch + */ +int mqc_bypass_flush_enc(); + +/* + * RESET mode switch + */ +void mqc_reset_enc(); + +/* + * RESTART mode switch (TERMALL) + */ +int mqc_restart_enc(); + +/* + * RESTART mode switch (TERMALL) + */ +void mqc_restart_init_enc(); + +/* + * ERTERM mode switch (PTERM) + */ +void mqc_erterm_enc(); + +/* + * SEGMARK mode switch (SEGSYM) + */ +void mqc_segmark_enc(); + + +/* + * Initialize the decoder + * bp: pointer to the start of the buffer from which the bytes will be read + * len: length of the input buffer + */ +void mqc_init_dec(unsigned char *bp, int len); + +/* + * Decode a bit (returns 0 or 1) + */ +int mqc_decode(); + +#endif |
