CELT  0.8.1
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    - 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 */