moviethumbnail有人用过吗

lwd1900

我碰到这个问题，输入 mtnpp/mtn rs2011.avi -c 3 -r 4  mtnpp/tahomabd.ttf

输出这个

[h261 @ 0x83d7b70]warning: first frame is no keyframe
File: mtnpp/tahomabd.ttf
Size: 355436 bytes (347.11 KiB), duration: N/A, bitrate: N/A
Video: h261, yuv420p, 176x144, 29.97 fps(r)
  turning time stamp off because of duration
  duration is unknown: -1.00