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00038 #include <mpcdec/mpcdec.h>
00039
00041 static mpc_int32_t
00042 read_impl(void *data, void *ptr, mpc_int32_t size)
00043 {
00044 mpc_reader_file *d = (mpc_reader_file *) data;
00045
00046 return fread(ptr, 1, size, d->file);
00047 }
00048
00049 static mpc_bool_t
00050 seek_impl(void *data, mpc_int32_t offset)
00051 {
00052 mpc_reader_file *d = (mpc_reader_file *) data;
00053
00054 return d->is_seekable ? !fseek(d->file, offset, SEEK_SET) : FALSE;
00055 }
00056
00057 static mpc_int32_t
00058 tell_impl(void *data)
00059 {
00060 mpc_reader_file *d = (mpc_reader_file *) data;
00061
00062 return ftell(d->file);
00063 }
00064
00065 static mpc_int32_t
00066 get_size_impl(void *data)
00067 {
00068 mpc_reader_file *d = (mpc_reader_file *) data;
00069
00070 return d->file_size;
00071 }
00072
00073 static mpc_bool_t
00074 canseek_impl(void *data)
00075 {
00076 mpc_reader_file *d = (mpc_reader_file *) data;
00077
00078 return d->is_seekable;
00079 }
00080
00081 void
00082 mpc_reader_setup_file_reader(mpc_reader_file *p_reader, FILE *input)
00083 {
00084 p_reader->reader.seek = seek_impl;
00085 p_reader->reader.read = read_impl;
00086 p_reader->reader.tell = tell_impl;
00087 p_reader->reader.get_size = get_size_impl;
00088 p_reader->reader.canseek = canseek_impl;
00089 p_reader->reader.data = p_reader;
00090
00091 p_reader->file = input;
00092 p_reader->is_seekable = TRUE;
00093 fseek(input, 0, SEEK_END);
00094 p_reader->file_size = ftell(input);
00095 fseek(input, 0, SEEK_SET);
00096 }