lavc/libtheoraenc: handle frame durations and AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE

libavcodec/libtheoraenc.c

@@ -347,6 +347,12 @@ static int encode_frame(AVCodecContext* avc_context, AVPacket *pkt,
     // HACK: assumes no encoder delay, this is true until libtheora becomes
     // multithreaded (which will be disabled unless explicitly requested)
     pkt->pts = pkt->dts = frame->pts;
+    pkt->duration = frame->duration;
+
+    ret = ff_encode_reordered_opaque(avc_context, pkt, frame);
+    if (ret < 0)
+        return ret;
+
     if (!(o_packet.granulepos & h->keyframe_mask))
         pkt->flags |= AV_PKT_FLAG_KEY;
     *got_packet = 1;
@@ -373,7 +379,9 @@ const FFCodec ff_libtheora_encoder = {
     .p.type         = AVMEDIA_TYPE_VIDEO,
     .p.id           = AV_CODEC_ID_THEORA,
     .p.capabilities = AV_CODEC_CAP_DR1 |
-                      AV_CODEC_CAP_DELAY /* for statsfile summary */,
+                      /* for statsfile summary */
+                      AV_CODEC_CAP_DELAY |
+                      AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
     .caps_internal  = FF_CODEC_CAP_NOT_INIT_THREADSAFE,
     .priv_data_size = sizeof(TheoraContext),
     .init           = encode_init,