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int zbar_process_one ( zbar_processor_t processor,
int  timeout 

process from the video stream until a result is available, or the timeout (in milliseconds) expires. specify a timeout of -1 to scan indefinitely (zbar_processor_set_active() may still be used to abort the scan from another thread). if the library window is visible, video display will be enabled.

that multiple results may still be returned (despite the name).
>0 if symbols were successfully decoded, 0 if no symbols were found (ie, the timeout expired) or -1 if an error occurs

Definition at line 628 of file processor.c.

References ZBAR_ERR_INVALID, zbar_process_one(), and zbar_processor_set_active().

Referenced by zbar::Processor::process_one(), and zbar_process_one().

    int streaming = proc->streaming;

    int rc = 0;
    if(!proc->video) {
        rc = err_capture(proc, SEV_ERROR, ZBAR_ERR_INVALID, __func__,
                         "video input not initialized");
        goto done;

    if(!streaming) {
        rc = zbar_processor_set_active(proc, 1);
            goto done;

    zbar_timer_t timer;
    rc = _zbar_processor_wait(proc, EVENT_OUTPUT,
                              _zbar_timer_init(&timer, timeout));

    if(!streaming && zbar_processor_set_active(proc, 0))
        rc = -1;


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