static inline uint64_t v4l2_get_pts(V4L2Buffer *avbuf)

{

    V4L2m2mContext *s = buf_to_m2mctx(avbuf);

    AVRational v4l2_timebase = { 1, USEC_PER_SEC };

    int64_t v4l2_pts;



    /* convert pts back to encoder timebase */

    v4l2_pts = avbuf->buf.timestamp.tv_sec * USEC_PER_SEC + avbuf->buf.timestamp.tv_usec;



    return av_rescale_q(v4l2_pts, v4l2_timebase, s->avctx->time_base);

}
