CELT 0.11.1
libcelt/celt_header.h
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    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00017    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00018    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00019    A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
00020    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00021    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00022    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00023    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00024    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00025    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00026    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027 */
00028 
00029 #ifndef CELT_HEADER_H
00030 #define CELT_HEADER_H
00031 
00032 #ifdef __cplusplus
00033 extern "C" {
00034 #endif
00035 
00036 #include "celt.h"
00037 #include "celt_types.h"
00038 
00042 typedef struct {
00043    char         codec_id[8];       
00044    char         codec_version[20]; 
00045    celt_int32 version_id;        
00046    celt_int32 header_size;       
00047    celt_int32 sample_rate;       
00048    celt_int32 nb_channels;       
00049    celt_int32 frame_size;        
00050    celt_int32 overlap;           
00051    celt_int32 bytes_per_packet;  
00052    celt_int32 extra_headers;     
00053 } CELTHeader;
00054 
00056 EXPORT int celt_header_init(CELTHeader *header, const CELTMode *m, int frame_size, int channels);
00057 
00058 EXPORT int celt_header_to_packet(const CELTHeader *header, unsigned char *packet, celt_uint32 size);
00059 
00060 EXPORT int celt_header_from_packet(const unsigned char *packet, celt_uint32 size, CELTHeader *header);
00061 
00062 #ifdef __cplusplus
00063 }
00064 #endif
00065 
00066 #endif /* CELT_HEADER_H */