> > Sorry for not being clear. > > > In this case, the client is Asterisk and the server is a SPICE server. > > They want to send audio from the client to the server. The documentation > says that I need to use > RED_RECORD_* messages. The server must start requesting the record from > the client, with a RED_RECORD_START request. How can I trigger this > request? One of the client's developers said that this message is sent > from the server right after a link with connection type > SPICE_CHANNEL_RECORD is made. Is this information true? I cannot find > anywhere in the documentation how this communication starts. > The documentation is a bit outdated, many RED_* stuff was renamed to SPICE_* time ago. In case of messages should be SPICE_MSGC_RECORD_START (the C in MSGC means from client). As said the record channel is like a microphone. The start is triggered by the line-in enabled in the VM sound card. If the line-in is enabled before the connection the start message is send after the connection. Otherwise to trigger the start you need to enable the line-in on the VM side, that is, you need to start a recording in the VM. > On 10/10/19 3:22 PM, Frediano Ziglio wrote: > >> Hello, > >> > >> I'm a developer doing a freelance job for a company. They want to > >> connect Asterisk call center to a vm running Spice. I see that it's > >> possible to do Bidirectional Audio, according to your user manual. > >> I want to stream audio from a client to the server, and have that audio > >> played through the output device of the server. I need to make this code > >> in C. > >> > > Not clear here what the client and server are. Speaking about SPICE > > the server is the part attached to the VM while the client is usually > > a GUI client (like remote-viewer). > > > >> Looking at your protocol I saw that for audio messages the server always > >> needs to start the communication, either with RED_PLAYBACK_START or > >> RED_RECORD_START. > >> > > They are 2 separate channels which have one respective TCP connection > > (can be a Unix socket connection but in this case won't be remote). > > The playback channel is like, for the SPICE client, a speaker so the > > VM will send the audio to be played. > > The record channel is like, still for the client, a microphone so > > the client will send the audio to be recorder by the VM. > > The START messages are send from the VM either so say that the audio > > card is playing something (playback) or trying to record something > > (record) > > > >> My client wants to receive the call in the call center and have it > >> automatically streamed to the server. But I cannot start messaging > >> unless the server requests the connection. > >> > > What is the server here? It seems it's not SPICE server. It's not > > clear what you are trying to do. Where is executed Asterisk? > > And how is Asterisk involved here? Is it not possible to record on > > Asterisk (I suppose the calls are handled by Asterisk)? > > > >> How can I solve that? > >> > >> Regards, > >> Eduardo Hoefel > >> > > Frediano > _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel