99 lines
3.5 KiB
C
99 lines
3.5 KiB
C
/*
|
|
Copyright (c) 2005-2009, The Musepack Development Team
|
|
All rights reserved.
|
|
|
|
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 The Musepack Development Team 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 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.
|
|
*/
|
|
/// \file reader.h
|
|
#ifndef _MPCDEC_READER_H_
|
|
#define _MPCDEC_READER_H_
|
|
#ifdef WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include <mpcdec/mpc_types.h>
|
|
#include <stdio.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/// \brief Stream reader interface structure.
|
|
///
|
|
/// This is the structure you must supply to the musepack decoding library
|
|
/// to feed it with raw data. Implement the five member functions to provide
|
|
/// a functional reader.
|
|
typedef struct mpc_reader_t mpc_reader;
|
|
struct mpc_reader_t {
|
|
/// Reads size bytes of data into buffer at ptr.
|
|
mpc_int32_t (*read)(mpc_reader *p_reader, void *ptr, mpc_int32_t size);
|
|
|
|
/// Seeks to byte position offset.
|
|
mpc_bool_t (*seek)(mpc_reader *p_reader, mpc_int32_t offset);
|
|
|
|
/// Returns the current byte offset in the stream.
|
|
mpc_int32_t (*tell)(mpc_reader *p_reader);
|
|
|
|
/// Returns the total length of the source stream, in bytes.
|
|
mpc_int32_t (*get_size)(mpc_reader *p_reader);
|
|
|
|
/// True if the stream is a seekable stream.
|
|
mpc_bool_t (*canseek)(mpc_reader *p_reader);
|
|
|
|
/// Field that can be used to identify a particular instance of
|
|
/// reader or carry along data associated with that reader.
|
|
void *data;
|
|
};
|
|
|
|
/// Initializes reader with default stdio file reader implementation. Use
|
|
/// this if you're just reading from a plain file.
|
|
///
|
|
/// \param r p_reader handle to initialize
|
|
/// \param filename input filename to attach to the reader
|
|
MPC_API mpc_status mpc_reader_init_stdio(mpc_reader *p_reader, const char *filename);
|
|
|
|
/// Initializes reader with default stdio file reader implementation. Use
|
|
/// this if you prefer to open the file yourself.
|
|
///
|
|
/// \param r p_reader handle to initialize
|
|
/// \param p_file input file handle (already open)
|
|
MPC_API mpc_status mpc_reader_init_stdio_stream(mpc_reader * p_reader, FILE * p_file);
|
|
|
|
/// Release reader with default stdio file reader implementation.
|
|
///
|
|
/// \param r reader handle to release
|
|
MPC_API void mpc_reader_exit_stdio(mpc_reader *p_reader);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|