source: trunk/Codecprintf.c @ 1036

/*
 *  Codecprintf.c
 *  Perian
 *
 *  Created by Augie Fackler on 7/16/06.
 *  Copyright 2006 Perian Project. All rights reserved.
 *
 */

#include "Codecprintf.h"
#include <stdio.h>
#include <stdarg.h>
#include "log.h"

#define CODEC_HEADER                    "Perian: "

static int Codecvprintf(FILE *fileLog, const char *format, va_list va, int print_header)
{
        int ret = 0;
        
        if(fileLog)
        {
                if(print_header)
                        fprintf(fileLog, CODEC_HEADER);
                ret = vfprintf(fileLog, format, va);
                fflush(fileLog);
        }
        else
        {
#ifdef DEBUG_BUILD
                if(print_header)
                        printf(CODEC_HEADER);
                
                ret = vprintf(format, va);
#endif
        }
        
        return ret;
}

int Codecprintf(FILE *fileLog, const char *format, ...)
{
        int ret;
        va_list va;
        va_start(va, format);
        ret = Codecvprintf(fileLog, format, va, !fileLog);
        va_end(va);
        return ret;
}

const char *FourCCString(FourCharCode c)
{
    static char fourcc[sizeof("0xFFFF")] = {0};
    int i;
    
        //not a fourcc or twocc
        if (c < '\0\0AA') {
                snprintf(fourcc, sizeof(fourcc), "%#x", (unsigned)c);
        } else {
                for (i = 0; i < 4; i++) fourcc[i] = c >> 8*(3-i);
                fourcc[4] = '\0';
        }
    
    return (char*)fourcc;
}

void FourCCprintf(const char *string, FourCharCode a)
{
    Codecprintf(NULL, "%s%s\n", string, FourCCString(a));
}

void FFMpegCodecprintf(void* ptr, int level, const char* fmt, va_list vl)
{
    static int print_prefix=1;
        int print_header = 1;
    AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
    if(level>av_log_get_level())
        return;

    if(print_prefix && avc) {
                Codecprintf(NULL, "[%s @ %p]", avc->item_name(ptr), avc);
                print_header = 0;
    }
        
    print_prefix= strstr(fmt, "\n") != NULL;
        
        Codecvprintf(NULL, fmt, vl, print_header);
}