diff options
Diffstat (limited to 'mp4ff/mp4util.c')
| -rw-r--r-- | mp4ff/mp4util.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/mp4ff/mp4util.c b/mp4ff/mp4util.c deleted file mode 100644 index 1a77c97ae..000000000 --- a/mp4ff/mp4util.c +++ /dev/null @@ -1,188 +0,0 @@ -/* -** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding -** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** This program is distributed in the hope that it will be useful, -** but WITHOUT ANY WARRANTY; without even the implied warranty of -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -** GNU General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -** -** Any non-GPL usage of this software or parts of this software is strictly -** forbidden. -** -** Commercial non-GPL licensing of this software is possible. -** For more info contact Ahead Software through Mpeg4AAClicense@nero.com. -** -** $Id: mp4util.c,v 1.15 2004/01/11 15:52:19 menno Exp $ -**/ - -#include "mp4ffint.h" -#include <stdlib.h> - -int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size) -{ - int32_t result = 1; - - result = f->stream->read(f->stream->user_data, data, size); - - f->current_position += size; - - return result; -} - -int32_t mp4ff_truncate(mp4ff_t * f) -{ - return f->stream->truncate(f->stream->user_data); -} - -int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size) -{ - int32_t result = 1; - - result = f->stream->write(f->stream->user_data, data, size); - - f->current_position += size; - - return result; -} - -int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data) -{ - uint32_t result; - uint32_t a, b, c, d; - int8_t temp[4]; - - *(uint32_t*)temp = data; - a = (uint8_t)temp[0]; - b = (uint8_t)temp[1]; - c = (uint8_t)temp[2]; - d = (uint8_t)temp[3]; - - result = (a<<24) | (b<<16) | (c<<8) | d; - - return mp4ff_write_data(f,(uint8_t*)&result,sizeof(result)); -} - -int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position) -{ - f->stream->seek(f->stream->user_data, position); - f->current_position = position; - - return 0; -} - -int64_t mp4ff_position(const mp4ff_t *f) -{ - return f->current_position; -} - -uint64_t mp4ff_read_int64(mp4ff_t *f) -{ - uint8_t data[8]; - uint64_t result = 0; - int8_t i; - - mp4ff_read_data(f, data, 8); - - for (i = 0; i < 8; i++) - { - result |= ((uint64_t)data[i]) << ((7 - i) * 8); - } - - return result; -} - -uint32_t mp4ff_read_int32(mp4ff_t *f) -{ - uint32_t result; - uint32_t a, b, c, d; - int8_t data[4]; - - mp4ff_read_data(f, data, 4); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; - d = (uint8_t)data[3]; - - result = (a<<24) | (b<<16) | (c<<8) | d; - return (uint32_t)result; -} - -uint32_t mp4ff_read_int24(mp4ff_t *f) -{ - uint32_t result; - uint32_t a, b, c; - int8_t data[4]; - - mp4ff_read_data(f, data, 3); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - c = (uint8_t)data[2]; - - result = (a<<16) | (b<<8) | c; - return (uint32_t)result; -} - -uint16_t mp4ff_read_int16(mp4ff_t *f) -{ - uint32_t result; - uint32_t a, b; - int8_t data[2]; - - mp4ff_read_data(f, data, 2); - a = (uint8_t)data[0]; - b = (uint8_t)data[1]; - - result = (a<<8) | b; - return (uint16_t)result; -} - -char * mp4ff_read_string(mp4ff_t * f,uint32_t length) -{ - char * str = (char*)malloc(length + 1); - if (str!=0) - { - if ((uint32_t)mp4ff_read_data(f,str,length)!=length) - { - free(str); - str = 0; - } - else - { - str[length] = 0; - } - } - return str; -} - -uint8_t mp4ff_read_char(mp4ff_t *f) -{ - uint8_t output; - mp4ff_read_data(f, &output, 1); - return output; -} - -uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f) -{ - uint8_t b; - uint8_t numBytes = 0; - uint32_t length = 0; - - do - { - b = mp4ff_read_char(f); - numBytes++; - length = (length << 7) | (b & 0x7F); - } while ((b & 0x80) && numBytes < 4); - - return length; -} |