user11875: flv is a container which can be used to stream videos while they are being encoded. flv supports h.264 codec. 
However, flv doesn't support hevc codec. Is there any container for hevc which is streamable?

user20240: A bit old one but Google still lists it...
You can of course use RTSP "push" similar way as you'd do via FLV/RTMP. A bit less known method but also viable and supports H.265 (aka HEVC).

user1871: MPEG -TS. See here:

All MPEG-2 TS operations from GPAC (client and MP42TS) are supported on
    HEVC. MP42TS can be used to generate TS files usable for DASH or for
    injection in modulation chains; it can also be used to send the TS over an
    UDP or RTP stream in unicast or multicast mode


11875: <p><code>flv</code> is a container which can be used to stream videos while they are being encoded. <code>flv</code> supports <code>h.264</code> codec. </p>

<p>However, <code>flv</code> doesn't support <code>hevc</code> codec. Is there any container for <code>hevc</code> which is streamable?</p>
 20240: <p>A bit old one but Google still lists it...</p>
<p>You can of course use RTSP &quot;push&quot; similar way as you'd do via FLV/RTMP. A bit less known method but also viable and supports H.265 (aka HEVC).</p>
 1871: <p>MPEG -TS. See <a href="https://gpac.wp.mines-telecom.fr/2013/04/26/mpeg-hevc-support-in-gpac/" rel="nofollow">here</a>:</p>

<blockquote>
  <p>All MPEG-2 TS operations from GPAC (client and MP42TS) are supported on
    HEVC. MP42TS can be used to generate TS files usable for DASH or for
    injection in modulation chains; it can also be used to send the TS over an
    UDP or RTP stream in unicast or multicast mode</p>
</blockquote>
