ref: e8a40038cfdeeb7eb764203dda2613faf96f4709
dir: /common/mp4v2/mp4util.h/
/*
* 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 %u\n", \
__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, ' ');
}
static inline void MP4Printf(const char* fmt, ...)
#ifndef _WIN32
__attribute__((format(__printf__, 1, 2)))
#endif
;
static 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
vprintf(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);
MP4Timestamp ret;
ret = tv.tv_sec;
ret += 2082844800;
return ret; // MP4 start date is 1/1/1904
// 208284480 is (((1970 - 1904) * 365) + 17) * 24 * 60 * 60
}
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__ */