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8 comments:

• File include/osmocom/mgcp/mgcp_codec.h:

  • Patch Set #2, Line 16: int mgcp_codec_decide(struct mgcp_conn_rtp *conn, struct mgcp_conn_rtp *conn_opposite);

    my understanding is that this decides which codec is used in one direction between conn A and conn B, hence between conn_src and conn_dst, am I correct?
    If that's the case, naming the conns "conn_src" and "conn_dst" may be a lot clearer.

• File src/libosmo-mgcp/mgcp_codec.c:

  • Patch Set #2, Line 440: conn->end.codec = mgcp_codec_find_same(conn, found_same_codec_opposite);

    I wonder why do you need to call mgcp_codec_find_same() twice here, something looks wrong imho.

  • Patch Set #2, Line 449: found_same_codec_opposite = codec_find_convertible(conn_opposite, &conn->end.codecs[i]);

    I wonder why do you need to call codec_find_convertible() twice here, something looks wrong imho.

  • Patch Set #2, Line 461: }

    IIUC you are finding/selecting/setting the same codec A->B and B->A here, but I wonder if that really makes sense?
    Couldn't A->B and B->A be different? I think so.

• File src/libosmo-mgcp/mgcp_network.c:

  • Patch Set #2, Line 514: /* Lookup a suitable codec in the destination connection. */

    I see no lookup being done here anymore.

• File src/libosmo-mgcp/mgcp_protocol.c:

  • Patch Set #2, Line 809: conn_opposite = mgcp_find_dst_conn(conn->conn);

    see, here we have a clear concept of conn_src ("conn" here) and conn_dst (returned by mgcp_find_dst_conn).

  • Patch Set #2, Line 816: if (mgcp_codec_decide(conn, conn_rtp_opposite) != 0)

    in here you are deciding what codec is used to forward/transmit from conn_src to conn_dst.

• File src/libosmo-mgcp/mgcp_vty.c:

  • Patch Set #2, Line 703: "allow-transcoding", "Allow transcoding\n")

    Add vty_out telling the user that this command is deprecated and is a NO-OP, so that they can drop it from their config.

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