Hello, I am trying to begin decoding h264 video stream in .mp4 container from some offset. But whether I choose AVSEEK_FLAG_FRAME|AVSEEK_FLAG_ANY or AVSEEK_FLAG_FRAME I always end positioned on a keyframe. Is there a reliable (i.e. codec-independent) way to know the true frame number after av_seek_frame()? Thanks, Alex Cohn