70 lines
3 KiB
C
70 lines
3 KiB
C
|
/* (C) 2008 Jean-Marc Valin, CSIRO
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
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.
|
||
|
|
|
||
|
|
- Neither the name of the Xiph.org Foundation nor the names of its
|
||
|
|
contributors may be used to endorse or promote products derived from
|
||
|
|
this software without specific prior written permission.
|
||
|
|
|
||
|
|
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 FOUNDATION 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 CELT_HEADER_H
|
||
|
|
#define CELT_HEADER_H
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "celt.h"
|
||
|
|
#include "celt_types.h"
|
||
|
|
|
||
|
|
/** Header data to be used for Ogg files (or possibly other encapsulation)
|
||
|
|
@brief Header data
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
char codec_id[8]; /**< MUST be "CELT " (four spaces) */
|
||
|
|
char codec_version[20]; /**< Version used (as string) */
|
||
|
|
celt_int32_t version_id; /**< Version id (negative for until stream is frozen) */
|
||
|
|
celt_int32_t header_size; /**< Size of this header */
|
||
|
|
celt_int32_t sample_rate; /**< Sampling rate of the original audio */
|
||
|
|
celt_int32_t nb_channels; /**< Number of channels */
|
||
|
|
celt_int32_t frame_size; /**< Samples per frame (per channel) */
|
||
|
|
celt_int32_t overlap; /**< Overlapping samples (per channel) */
|
||
|
|
celt_int32_t bytes_per_packet; /**< Number of bytes per compressed packet (0 if unknown) */
|
||
|
|
celt_int32_t extra_headers; /**< Number of additional headers that follow this header */
|
||
|
|
} CELTHeader;
|
||
|
|
|
||
|
|
/** Creates a basic header struct */
|
||
|
|
EXPORT int celt_header_init(CELTHeader *header, const CELTMode *m);
|
||
|
|
|
||
|
|
EXPORT int celt_header_to_packet(const CELTHeader *header, unsigned char *packet, celt_uint32_t size);
|
||
|
|
|
||
|
|
EXPORT int celt_header_from_packet(const unsigned char *packet, celt_uint32_t size, CELTHeader *header);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* CELT_HEADER_H */
|