mp4util.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:6k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is MPEG4IP.
- *
- * The Initial Developer of the Original Code is Cisco Systems Inc.
- * Portions created by Cisco Systems Inc. are
- * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
- *
- * Contributor(s):
- * Dave Mackie dmackie@cisco.com
- */
- #ifndef __MP4_UTIL_INCLUDED__
- #define __MP4_UTIL_INCLUDED__
- #include <assert.h>
- #ifndef ASSERT
- #ifdef NDEBUG
- #define ASSERT(expr)
- #else
- #define ASSERT(expr)
- if (!(expr)) {
- fflush(stdout);
- assert((expr));
- }
- #endif
- #endif
- #ifdef NDEBUG
- #define WARNING(expr)
- #else
- #define WARNING(expr)
- if (expr) {
- fflush(stdout);
- fprintf(stderr, "Warning (%s) in %s at line %un",
- __STRING(expr), __FILE__, __LINE__);
- }
- #endif
- #define VERBOSE(exprverbosity, verbosity, expr)
- if (((exprverbosity) & (verbosity)) == (exprverbosity)) { expr; }
- #define VERBOSE_ERROR(verbosity, expr)
- VERBOSE(MP4_DETAILS_ERROR, verbosity, expr)
- #define VERBOSE_WARNING(verbosity, expr)
- VERBOSE(MP4_DETAILS_WARNING, verbosity, expr)
- #define VERBOSE_READ(verbosity, expr)
- VERBOSE(MP4_DETAILS_READ, verbosity, expr)
- #define VERBOSE_READ_TABLE(verbosity, expr)
- VERBOSE((MP4_DETAILS_READ | MP4_DETAILS_TABLE), verbosity, expr)
- #define VERBOSE_READ_SAMPLE(verbosity, expr)
- VERBOSE((MP4_DETAILS_READ | MP4_DETAILS_SAMPLE), verbosity, expr)
- #define VERBOSE_READ_HINT(verbosity, expr)
- VERBOSE((MP4_DETAILS_READ | MP4_DETAILS_HINT), verbosity, expr)
- #define VERBOSE_WRITE(verbosity, expr)
- VERBOSE(MP4_DETAILS_WRITE, verbosity, expr)
- #define VERBOSE_WRITE_TABLE(verbosity, expr)
- VERBOSE((MP4_DETAILS_WRITE | MP4_DETAILS_TABLE), verbosity, expr)
- #define VERBOSE_WRITE_SAMPLE(verbosity, expr)
- VERBOSE((MP4_DETAILS_WRITE | MP4_DETAILS_SAMPLE), verbosity, expr)
- #define VERBOSE_WRITE_HINT(verbosity, expr)
- VERBOSE((MP4_DETAILS_WRITE | MP4_DETAILS_HINT), verbosity, expr)
- #define VERBOSE_FIND(verbosity, expr)
- VERBOSE(MP4_DETAILS_FIND, verbosity, expr)
- #define VERBOSE_ISMA(verbosity, expr)
- VERBOSE(MP4_DETAILS_ISMA, verbosity, expr)
- #define VERBOSE_EDIT(verbosity, expr)
- VERBOSE(MP4_DETAILS_EDIT, verbosity, expr)
- inline void Indent(FILE* pFile, u_int8_t depth) {
- fprintf(pFile, "%*c", depth, ' ');
- }
- inline void MP4Printf(const char* fmt, ...) {
- va_list ap;
- va_start(ap, fmt);
- // TBD API call to set error_msg_func instead of just printf
- fprintf(stdout, fmt, ap);
- va_end(ap);
- }
- class MP4Error {
- public:
- MP4Error() {
- m_errno = 0;
- m_errstring = NULL;
- m_where = NULL;
- m_free = 0;
- }
- ~MP4Error() {
- if (m_free != 0) {
- free((void *)m_errstring);
- }
- }
- MP4Error(int err, const char* where = NULL) {
- m_errno = err;
- m_errstring = NULL;
- m_where = where;
- m_free = 0;
- }
- MP4Error(const char *format, const char *where, ...) {
- char *string;
- m_errno = 0;
- string = (char *)malloc(512);
- m_where = where;
- if (string) {
- va_list ap;
- va_start(ap, where);
- vsnprintf(string, 512, format, ap);
- va_end(ap);
- m_errstring = string;
- m_free = 1;
- } else {
- m_errstring = format;
- m_free = 0;
- }
- }
- MP4Error(int err, const char* format, const char* where, ...) {
- char *string;
- m_errno = err;
- string = (char *)malloc(512);
- m_where = where;
- if (string) {
- va_list ap;
- va_start(ap, where);
- vsnprintf(string, 512, format, ap);
- va_end(ap);
- m_errstring = string;
- m_free = 1;
- } else {
- m_errstring = format;
- m_free = 0;
- }
- }
- void Print(FILE* pFile = stderr);
- int m_free;
- int m_errno;
- const char* m_errstring;
- const char* m_where;
- };
- void MP4HexDump(
- u_int8_t* pBytes, u_int32_t numBytes,
- FILE* pFile = stdout, u_int8_t indent = 0);
- inline void* MP4Malloc(size_t size) {
- void* p = malloc(size);
- if (p == NULL && size > 0) {
- throw new MP4Error(errno);
- }
- return p;
- }
- inline void* MP4Calloc(size_t size) {
- return memset(MP4Malloc(size), 0, size);
- }
- inline char* MP4Stralloc(const char* s1) {
- char* s2 = (char*)MP4Malloc(strlen(s1) + 1);
- strcpy(s2, s1);
- return s2;
- }
- inline void* MP4Realloc(void* p, u_int32_t newSize) {
- // workaround library bug
- if (p == NULL && newSize == 0) {
- return NULL;
- }
- p = realloc(p, newSize);
- if (p == NULL && newSize > 0) {
- throw new MP4Error(errno);
- }
- return p;
- }
- inline void MP4Free(void* p) {
- free(p);
- }
- inline u_int32_t STRTOINT32(const char* s) {
- return (s[0] << 24) | (s[1] << 16) | (s[2] << 8) | s[3];
- }
- inline void INT32TOSTR(u_int32_t i, char* s) {
- s[0] = ((i >> 24) & 0xFF); s[1] = ((i >> 16) & 0xFF);
- s[2] = ((i >> 8) & 0xFF); s[3] = (i & 0xFF); s[4] = 0;
- }
- inline MP4Timestamp MP4GetAbsTimestamp() {
- struct timeval tv;
- gettimeofday(&tv, NULL);
- return tv.tv_sec + 209606400; // MP4 start date is 1/1/1904
- }
- u_int64_t MP4ConvertTime(u_int64_t t,
- u_int32_t oldTimeScale, u_int32_t newTimeScale);
- bool MP4NameFirstMatches(const char* s1, const char* s2);
- bool MP4NameFirstIndex(const char* s, u_int32_t* pIndex);
- char* MP4NameFirst(const char *s);
- const char* MP4NameAfterFirst(const char *s);
- char* MP4ToBase16(const u_int8_t* pData, u_int32_t dataSize);
- char* MP4ToBase64(const u_int8_t* pData, u_int32_t dataSize);
- #endif /* __MP4_UTIL_INCLUDED__ */