C++ (Cpp) parse_time_or_die示例

示例#1

文件： libffplayopts.c 项目： xsmart/splayer

static int opt_duration(slotinfo_t* slotinfo, const char *opt, const char *arg)
{
    slotinfo->duration = parse_time_or_die(opt, arg, 1);
    return 0;
}

示例#2

文件： cmdutils.c 项目： Tjoppen/FFmpeg

int parse_option(void *optctx, const char *opt, const char *arg, const OptionDef *options)
{
    const OptionDef *po;
    int bool_val = 1;
    int *dstcount;
    void *dst;

    po = find_option(options, opt);
    if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
        /* handle 'no' bool option */
        po = find_option(options, opt + 2);
        if (!(po->name && (po->flags & OPT_BOOL)))
            goto unknown_opt;
        bool_val = 0;
    }
    if (!po->name)
        po = find_option(options, "default");
    if (!po->name) {
unknown_opt:
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
        return AVERROR(EINVAL);
    }
    if (po->flags & HAS_ARG && !arg) {
        av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
        return AVERROR(EINVAL);
    }

    /* new-style options contain an offset into optctx, old-style address of
     * a global var*/
    dst = po->flags & (OPT_OFFSET|OPT_SPEC) ? (uint8_t*)optctx + po->u.off : po->u.dst_ptr;

    if (po->flags & OPT_SPEC) {
        SpecifierOpt **so = dst;
        char *p = strchr(opt, ':');

        dstcount = (int*)(so + 1);
        *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
        (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
        dst = &(*so)[*dstcount - 1].u;
    }

    if (po->flags & OPT_STRING) {
        char *str;
        str = av_strdup(arg);
        *(char**)dst = str;
    } else if (po->flags & OPT_BOOL) {
        *(int*)dst = bool_val;
    } else if (po->flags & OPT_INT) {
        *(int*)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
    } else if (po->flags & OPT_INT64) {
        *(int64_t*)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
    } else if (po->flags & OPT_TIME) {
        *(int64_t*)dst = parse_time_or_die(opt, arg, 1);
    } else if (po->flags & OPT_FLOAT) {
        *(float*)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
    } else if (po->flags & OPT_DOUBLE) {
        *(double*)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
    } else if (po->u.func_arg) {
        int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg) :
                                          po->u.func_arg(opt, arg);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Failed to set value '%s' for option '%s'\n", arg, opt);
            return ret;
        }
    }
    if (po->flags & OPT_EXIT)
        exit_program(0);
    return !!(po->flags & HAS_ARG);
}

示例#3

文件： libffplayopts.c 项目： xsmart/splayer

static int opt_seek(slotinfo_t* slotinfo, const char *opt, const char *arg)
{
    slotinfo->start_time = parse_time_or_die(opt, arg, 1);
    return 0;
}