00001 /* Copyright (c) 2007 CSIRO 00002 Copyright (c) 2007-2008 Xiph.Org Foundation 00003 Written by Jean-Marc Valin */ 00004 /* 00005 Redistribution and use in source and binary forms, with or without 00006 modification, are permitted provided that the following conditions 00007 are met: 00008 00009 - Redistributions of source code must retain the above copyright 00010 notice, this list of conditions and the following disclaimer. 00011 00012 - Redistributions in binary form must reproduce the above copyright 00013 notice, this list of conditions and the following disclaimer in the 00014 documentation and/or other materials provided with the distribution. 00015 00016 - Neither the name of the Xiph.org Foundation nor the names of its 00017 contributors may be used to endorse or promote products derived from 00018 this software without specific prior written permission. 00019 00020 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00021 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00022 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00023 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 00024 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00026 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 */ 00032 00033 #ifndef CELT_HEADER_H 00034 #define CELT_HEADER_H 00035 00036 #ifdef __cplusplus 00037 extern "C" { 00038 #endif 00039 00040 #include "celt.h" 00041 #include "celt_types.h" 00042 00046 typedef struct { 00047 char codec_id[8]; 00048 char codec_version[20]; 00049 celt_int32 version_id; 00050 celt_int32 header_size; 00051 celt_int32 sample_rate; 00052 celt_int32 nb_channels; 00053 celt_int32 frame_size; 00054 celt_int32 overlap; 00055 celt_int32 bytes_per_packet; 00056 celt_int32 extra_headers; 00057 } CELTHeader; 00058 00060 EXPORT int celt_header_init(CELTHeader *header, const CELTMode *m, int channels); 00061 00062 EXPORT int celt_header_to_packet(const CELTHeader *header, unsigned char *packet, celt_uint32 size); 00063 00064 EXPORT int celt_header_from_packet(const unsigned char *packet, celt_uint32 size, CELTHeader *header); 00065 00066 #ifdef __cplusplus 00067 } 00068 #endif 00069 00070 #endif /* CELT_HEADER_H */
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