kopia lustrzana https://github.com/F5OEO/tstools
167 wiersze
5.3 KiB
C
167 wiersze
5.3 KiB
C
/*
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* Standard names for various quantities.
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*
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* These are:
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*
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* 1. for historical reasons
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* 2. to handle differences between BSD or Linux and Windows
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the MPEG TS, PS and ES tools.
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*
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* The Initial Developer of the Original Code is Amino Communications Ltd.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Amino Communications Ltd, Swavesey, Cambridge UK
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*
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* ***** END LICENSE BLOCK *****
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*/
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#ifndef _compat
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#define _compat
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#ifdef _WIN32
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// Kill deprecation warnings
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#pragma warning( 4: 4996 )
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#include <io.h>
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// Windows doesn't seem to supply <stdint.h>, so we shall have to try
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// for values we hope work
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typedef __int8 int8_t;
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typedef __int16 int16_t;
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typedef __int32 int32_t;
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typedef __int64 int64_t;
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typedef unsigned __int8 uint8_t;
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typedef unsigned __int16 uint16_t;
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typedef unsigned __int32 uint32_t;
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typedef unsigned __int64 uint64_t;
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typedef uint8_t byte;
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#define INT64_MIN (-9223372036854775807i64 - 1)
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// On BSD, lseek takes a 64-bit off_t value
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// On Linux, if the system supports long files, it does the same
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// On Windows, one has the choice of _lseek or _lseeki64
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#define lseek _lseeki64
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// MS Visual C 2003 for .Net defines off_t in sys/types.h as "long"
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// I want to use the same name for my file offsets on Windows and Unix,
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// but I also want to use a 64 bit quantity. So:
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typedef __int64 offset_t;
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// On Windows, printf supports %lld but only uses 32 bits of the input value,
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// which leads to confusing results. Correct representation of 64 bit integers,
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// requires the use of %I64d, which is suitable for printing out offset_t
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#define OFFSET_T_FORMAT "%I64d"
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#define OFFSET_T_FORMAT_8 "%8I64d"
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#define OFFSET_T_FORMAT_08 "%08I64d"
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// Whilst we're at it, define the format for a 64 bit integer as such
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#define LLD_FORMAT "%I64d"
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#define LLU_FORMAT "%I64u"
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#define LLD_FORMAT_STUMP "I64d"
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#define LLU_FORMAT_STUMP "I64u"
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// The MSDN documentation for Visual Studio seems to indicate that
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// the low-level "names" for stdin, etc., are not STDIN_FILENO, etc.,
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// but are instead stdin, etc.
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// This seems to naturally be confusing with the C terms stdin, etc.
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// It *may* be that they actually are not distinct. However, the *numbers*
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// follow the normal definitions.
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#ifndef STDIN_FILENO
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#define STDIN_FILENO 0
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#endif
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// On Windows, "inline" is a C++ only keyword. In C, it is:
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#define inline __inline
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// Miscellaneous other Windows-related issues...
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#define snprintf _snprintf
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#else // _WIN32
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// Other than on Windows, using the C99 integer definitions is what people
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// expect, so do so
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#include <stdint.h>
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#include <stdint.h>
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// Keep "byte" for historical/affectionate reasons
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typedef uint8_t byte;
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// lseek on BSD/Linux uses an off_t quantity to specify the required
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// position. Where 64 bit file positions are supported, this is a 64 bit
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// value. Unfortunately, Windows has off_t defined as being a long.
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// For compatibility, therefore, we define a type that can be used on
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// both Windows and Unix
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// NB: On some systems, off_t is provided by unistd.h, but on some others
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// it may also be necessary to explicitly include sys/types.h. We shall
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// do both, here, for safety.
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#include <sys/types.h>
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#include <unistd.h>
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#include <inttypes.h>
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typedef off_t offset_t;
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#if defined(__linux__) && !defined(__USE_FILE_OFFSET64)
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// If Linux does not have 64 bit support built in, then our offsets will
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// be just 32 bit integers
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#define OFFSET_T_FORMAT "%ld"
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#define OFFSET_T_FORMAT_08 "%08ld" // deprecated, because it looks like hex/octal
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#define OFFSET_T_FORMAT_8 "%8ld"
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#else
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// On Unices, printf supports %lld for 64 bit integers, and this is suitable
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// for printing out offset_t when it is 64 bit
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#define OFFSET_T_FORMAT "%" PRIi64
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#define OFFSET_T_FORMAT_08 "%08" PRIi64 // deprecated, because it looks like hex/octal
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#define OFFSET_T_FORMAT_8 "%8" PRIi64
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#endif
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// Whilst we're at it, define the format for a 64 bit integer as such
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#define LLD_FORMAT "%" PRId64
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#define LLU_FORMAT "%" PRIu64
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#define LLD_FORMAT_STUMP "lld"
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#define LLU_FORMAT_STUMP "llu"
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// Useful macros, but not side-effect free
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#define max(i,j) ((i)>(j)?(i):(j))
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#define min(i,j) ((i)<(j)?(i):(j))
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#endif // WIN32
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// Other useful things
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typedef void * void_p;
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#define TRUE 1
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#define FALSE 0
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// The following defaults are common, and it's difficult
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// to decide which other header file they might belong in
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#define DEFAULT_VIDEO_PID 0x68
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#define DEFAULT_AUDIO_PID 0x67
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#define DEFAULT_PMT_PID 0x66
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#endif /* _compat */
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// Local Variables:
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// tab-width: 8
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// indent-tabs-mode: nil
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// c-basic-offset: 2
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// End:
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// vim: set tabstop=8 shiftwidth=2 expandtab:
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