前几次发了一份帖是有关dm6446如何实现4 Half D1+1 D采集模式，一直没有得到答案，后来看了一下TVP5158，发现DM6446行交叉模式不支持4 Half D1+1 D的采集模式；现在我只做实现4CIF+1D1的采集模式了，问题是：我如何在超级帧中分离那个D1数据出来？
以下 上采集到的4CIF+1 D1的matadata数据，我以十六制的形式粘贴出来，但不知道怎么看，请帮助我分析一下对不对？是不是4CIF+1 D1的metadata？
80ff ffff c7ff ffff c7ff ffff 80ff ffff ................
c7ff ffff 80ff ffff 80ff ffff 80ff ffff ................
80ff ffff c7ff ffff c7ff ffff 80ff ffff ................
c7ff ffff 80ff ffff 80ff ffff 80ff ffff ................
80ff ffff c7ff ffff c7ff ffff 80ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff c7ff ffff c7ff ffff 80ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff c7ff ffff 80ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff c7ff ffff c7ff ffff ................
80ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff c7ff ffff 80ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff 80ff ffff c7ff ffff ................
80ff ffff 80ff ffff 80ff ffff c7ff ffff ................
c7ff ffff 80ff ffff 80ff ffff c7ff ffff ................
非常感谢帮助
youcheng