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Diffstat (limited to 'src/libmusepack/idtag.c')
| -rw-r--r-- | src/libmusepack/idtag.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/src/libmusepack/idtag.c b/src/libmusepack/idtag.c deleted file mode 100644 index 4b02b33f4..000000000 --- a/src/libmusepack/idtag.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - Copyright (c) 2004, 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 idtag.c -/// Rudimentary id3tag handling routines, just enough to skip id3v2 tags, -/// if present. - -#include "musepack/musepack.h" -#include "musepack/internal.h" - -mpc_int32_t -JumpID3v2 (mpc_reader* r) { - unsigned char tmp [10]; - mpc_uint32_t Unsynchronisation; // ID3v2.4-flag - mpc_uint32_t ExtHeaderPresent; // ID3v2.4-flag - mpc_uint32_t ExperimentalFlag; // ID3v2.4-flag - mpc_uint32_t FooterPresent; // ID3v2.4-flag - mpc_int32_t ret; - - // seek to first byte of mpc data - if (!r->seek (r->data, 0)) { - return 0; - } - - r->read(r->data, tmp, sizeof(tmp)); - - // check id3-tag - if ( 0 != memcmp ( tmp, "ID3", 3) ) - return 0; - - // read flags - Unsynchronisation = tmp[5] & 0x80; - ExtHeaderPresent = tmp[5] & 0x40; - ExperimentalFlag = tmp[5] & 0x20; - FooterPresent = tmp[5] & 0x10; - - if ( tmp[5] & 0x0F ) - return -1; // not (yet???) allowed - if ( (tmp[6] | tmp[7] | tmp[8] | tmp[9]) & 0x80 ) - return -1; // not allowed - - // read HeaderSize (syncsave: 4 * $0xxxxxxx = 28 significant bits) - ret = tmp[6] << 21; - ret += tmp[7] << 14; - ret += tmp[8] << 7; - ret += tmp[9] ; - ret += 10; - if ( FooterPresent ) - ret += 10; - - return ret; -} |
