vidcapmain.c

这是基于韩国芯片EQUATOR公司的图像缩放程序

/**
*** Copyright (c) 2002 Equator Technologies, Inc.
**/

/************************************************************************
***
***  FILENAME: vidcapmain.c
***
***  DESCRIPTION:
***    Test application for video capture and display.
***
***    This application captures and displays PAL or NTSC video.
***
***    Note: The Shark board only has one video input path.
***
***    Sample command lines:
***      NTSC:        vidcap 0 1 0 0  (one input port)
***                   vidcap 0 1 1 0  (alternate between two input ports)
***      PAL:         vidcap 1 1 0 0  (one input port)
***
************************************************************************/

#include <stdlib.h>
#include <stdio.h>

#include <eti/drv.h>

static void usage (void)
{
    printf("usage: vidcap bUsePal bUsePort0 bUsePort1 NumFrames\n");
    printf("  Zero NumFrames will run forever\n");
    printf("  Set bUsePort to 1 for S-Video, 2 for composite\n");
}


SCODE vidcap(BOOL bUsePal,        // Set to 0 to capture/display NTSC
             BOOL bUsePort0,      // Capture from video port 0
             BOOL bUsePort1,      // Capture from video port 1
             int iFramesToCapture // Number of frames to capture (0=capture forever)
)
{

    if ((bUsePal != 0   && bUsePal != 1)   ||   // valid UsePal values
        (bUsePort0 < 0  ||  bUsePort0 > 2) ||   // valid port0 values
        (bUsePort1 < 0  ||  bUsePort1 > 2) ||   // valid port1 values
        (bUsePort0 == 0 && bUsePort1 == 0) ||   // no input ports?
        iFramesToCapture < 0)
    {
        usage();
        exit(1);
    }

    printf("Video capture test application\n");
    printf("Format: %s, Port0: %d, Port1: %d\n",
           bUsePal ? "PAL" : "NTSC", bUsePort0, bUsePort1);
    if (iFramesToCapture == 0) {
        printf("Run forever\n");
    }
    else {
        printf("Capture %d frames\n", iFramesToCapture);
    }

    return ProcessVidcap (bUsePal, bUsePort0, bUsePort1, iFramesToCapture);
}


// Command line entry point
void main(int argc, char *argv[])
{
    SCODE err;
    BOOL bUsePal;
    BOOL bUsePort0;
    BOOL bUsePort1;
    int iFramesToCapture;

    //
    // Get command line arguments
    //
    if (argc != 5) {
        usage();
        exit(1);
    }

    bUsePal = atoi(argv[1]);
    bUsePort0 = atoi(argv[2]);
    bUsePort1 = atoi(argv[3]);
    iFramesToCapture = atoi(argv[4]);

    err = vidcap(bUsePal, bUsePort0, bUsePort1, iFramesToCapture);

    exit(err == ETIDRV_OK ? 0 : 1);
}