misc.h

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#ifndef __MISC_H
#define __MISC_H
 
#include <syslog.h>
#include <stdarg.h>
#include <stdio.h>
#include <time.h>   // clock_gettime
#include <unistd.h>
#include <sys/syscall.h>
#include <string.h>
#include <inttypes.h>
#include <stdint.h>
 
#ifndef AV_NOPTS_VALUE
#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
#endif
 
#define VIDEO_SURFACES_MAX 3
 
static inline bool isInterlacedFrame(AVFrame *frame)
{
#if LIBAVUTIL_VERSION_INT < AV_VERSION_INT(58,7,100)
    return frame->interlaced_frame;
#else
    return frame->flags & AV_FRAME_FLAG_INTERLACED;
#endif
}
 
#ifdef av_err2str
#undef av_err2str
static inline const char* av_err2string(int errnum)
{
    static char str[3][AV_ERROR_MAX_STRING_SIZE];
    char buf[AV_ERROR_MAX_STRING_SIZE];
    static int idx = 0;
 
    idx = (idx + 1) % 3;
    av_make_error_string(buf, AV_ERROR_MAX_STRING_SIZE, errnum);
    snprintf(str[idx], sizeof(str[idx]), "%s", buf);
 
    return str[idx];
}
#define av_err2str(err) av_err2string(err)
#endif
 
static inline const char *Timestamp2String(int64_t ts, uint8_t divisor)
{
    static char buf[3][20];
    static int idx = 0;
 
    if (ts == (int64_t) AV_NOPTS_VALUE) {
        return "--:--:--.---";
    }
 
    ts /= divisor;
 
    idx = (idx + 1) % 3;
    snprintf(buf[idx], sizeof(buf[idx]), "%2d:%02d:%02d.%03d",
        (int)(ts / (3600000)), (int)((ts / (60000)) % 60),
        (int)((ts / (1000)) % 60), (int)(ts % 1000));
 
    return buf[idx];
}
 
#endif