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/// \file reader.h
#ifndef _musepack_reader_h_
#define _musepack_reader_h_
/// \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 {
/// Reads size bytes of data into buffer at ptr.
mpc_int32_t (*read)(void *t, void *ptr, mpc_int32_t size);
/// Seeks to byte position offset.
mpc_bool_t (*seek)(void *t, mpc_int32_t offset);
/// Returns the current byte offset in the stream.
mpc_int32_t (*tell)(void *t);
/// Returns the total length of the source stream, in bytes.
mpc_int32_t (*get_size)(void *t);
/// True if the stream is a seekable stream.
mpc_bool_t (*canseek)(void *t);
/// Optional field that can be used to identify a particular instance of
/// reader or carry along data associated with that reader.
void *data;
// These are used by provided internal standard file-based reader implementation.
// You shouldn't touch them. They're included in the main struct to avoid
// malloc/free.
FILE *file;
long file_size;
mpc_bool_t is_seekable;
} mpc_reader;
/// Initializes reader with default stdio file reader implementation. Use
/// this if you're just reading from a plain file.
///
/// \param r reader struct to initalize
/// \param input input stream to attach to the reader
void mpc_reader_setup_file_reader(mpc_reader *r, FILE *input);
#endif // _musepack_reader_h_
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