Function set_string_binary

libavutil/opt.c:368–400

}

static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
{
    int *lendst = (int *)(dst + 1);
    uint8_t *bin, *ptr;
    int len;

    av_freep(dst);
    *lendst = 0;

    if (!val || !(len = strlen(val)))
        return 0;

    if (len & 1)
        return AVERROR(EINVAL);
    len /= 2;

    ptr = bin = av_malloc(len);
    if (!ptr)
        return AVERROR(ENOMEM);
    while (*val) {
        int a = hexchar2int(*val++);
        int b = hexchar2int(*val++);
        if (a < 0 || b < 0) {
            av_free(bin);
            return AVERROR(EINVAL);
        }
        *ptr++ = (a << 4) | b;
    }
    *dst    = bin;
    *lendst = len;

    return 0;
}

static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
{