mpc_reader.c
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:3k
源码类别:
Windows CE
开发平台:
C/C++
- /*
- Copyright (c) 2005, 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 mpc_reader.c
- /// Contains implementations for simple file-based mpc_reader
- #include "musepack/musepack.h"
- /// mpc_reader callback implementations
- static mpc_int32_t
- read_impl(void *data, void *ptr, mpc_int32_t size)
- {
- mpc_reader *d = (mpc_reader *) data;
- return fread(ptr, 1, size, d->file);
- }
- static mpc_bool_t
- seek_impl(void *data, int offset)
- {
- mpc_reader *d = (mpc_reader *) data;
- return d->is_seekable ? !fseek(d->file, offset, SEEK_SET) : FALSE;
- }
- static mpc_int32_t
- tell_impl(void *data)
- {
- mpc_reader *d = (mpc_reader *) data;
- return ftell(d->file);
- }
- static mpc_int32_t
- get_size_impl(void *data)
- {
- mpc_reader *d = (mpc_reader *) data;
- return d->file_size;
- }
- static mpc_bool_t
- canseek_impl(void *data)
- {
- mpc_reader *d = (mpc_reader *) data;
- return d->is_seekable;
- }
- void
- mpc_reader_setup_file_reader(mpc_reader *reader, FILE *input)
- {
- reader->seek = seek_impl;
- reader->read = read_impl;
- reader->tell = tell_impl;
- reader->get_size = get_size_impl;
- reader->canseek = canseek_impl;
- reader->data = reader; // point back to ourselves
- reader->file = input;
- reader->is_seekable = TRUE;
- fseek(reader->file, 0, SEEK_END);
- reader->file_size = ftell(reader->file);
- fseek(reader->file, 0, SEEK_SET);
- }