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module-rtp: send journal feedback

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Parse the journal and send feedback.
Handle the NO and RS commands.
This commit is contained in:
Wim Taymans 2023-03-10 10:47:03 +01:00
parent 1276c946fd
commit f841a0d3f1
7 changed files with 124 additions and 8 deletions
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78
src/modules/module-rtp-session.c
View file

@ -527,6 +527,34 @@ static void recv_state_changed(void *data, bool started, const char *error)
}
}
static void recv_send_feedback(void *data, uint32_t seqnum)
{
struct session *sess = data;
struct impl *impl = sess->impl;
struct iovec iov[1];
struct msghdr msg;
struct rtp_apple_midi_rs hdr;
if (!sess->ctrl_ready || !sess->receiving)
return;
spa_zero(hdr);
hdr.cmd = htonl(APPLE_MIDI_CMD_RS);
hdr.ssrc = htonl(sess->ssrc);
hdr.seqnum = htonl(seqnum);
iov[0].iov_base = &hdr;
iov[0].iov_len = sizeof(hdr);
spa_zero(msg);
msg.msg_name = &sess->ctrl_addr;
msg.msg_namelen = sess->ctrl_len;
msg.msg_iov = iov;
msg.msg_iovlen = 1;
send_packet(impl->ctrl_source->fd, &msg);
}
static const struct rtp_stream_events send_stream_events = {
RTP_VERSION_STREAM_EVENTS,
.destroy = send_destroy,
@ -538,6 +566,7 @@ static const struct rtp_stream_events recv_stream_events = {
RTP_VERSION_STREAM_EVENTS,
.destroy = recv_destroy,
.state_changed = recv_state_changed,
.send_feedback = recv_send_feedback,
};
static void free_session(struct session *sess)
@ -784,6 +813,31 @@ static void parse_apple_midi_cmd_ok(struct impl *impl, bool ctrl, uint8_t *buffe
}
}
static void parse_apple_midi_cmd_no(struct impl *impl, bool ctrl, uint8_t *buffer,
ssize_t len, struct sockaddr_storage *sa, socklen_t salen)
{
struct rtp_apple_midi *hdr = (struct rtp_apple_midi*)buffer;
uint32_t initiator = ntohl(hdr->initiator);
struct session *sess;
sess = find_session_by_initiator(impl, initiator, ctrl);
if (sess == NULL || !sess->we_initiated) {
pw_log_warn("received NO from nonexisting session %u", initiator);
return;
}
if (ctrl) {
pw_log_info("got ctrl NO %08x %u", initiator, sess->data_ready);
sess->ctrl_ready = false;
} else {
pw_log_info("got data NO %08x %u, session canceled", initiator,
sess->ctrl_ready);
sess->data_ready = false;
if (!sess->ctrl_ready)
session_update_state(sess, SESSION_STATE_INIT);
}
}
static void parse_apple_midi_cmd_ck(struct impl *impl, bool ctrl, uint8_t *buffer,
ssize_t len, struct sockaddr_storage *sa, socklen_t salen)
{
@ -878,6 +932,24 @@ static void parse_apple_midi_cmd_by(struct impl *impl, bool ctrl, uint8_t *buffe
}
}
static void parse_apple_midi_cmd_rs(struct impl *impl, bool ctrl, uint8_t *buffer,
ssize_t len, struct sockaddr_storage *sa, socklen_t salen)
{
struct rtp_apple_midi_rs *hdr = (struct rtp_apple_midi_rs*)buffer;
struct session *sess;
uint32_t ssrc, seqnum;
ssrc = ntohl(hdr->ssrc);
sess = find_session_by_ssrc(impl, ssrc);
if (sess == NULL) {
pw_log_warn("unknown SSRC %u", ssrc);
return;
}
seqnum = ntohl(hdr->seqnum);
pw_log_debug("got RS seqnum %u", seqnum);
}
static void parse_apple_midi_cmd(struct impl *impl, bool ctrl, uint8_t *buffer,
ssize_t len, struct sockaddr_storage *sa, socklen_t salen)
{
@ -889,12 +961,18 @@ static void parse_apple_midi_cmd(struct impl *impl, bool ctrl, uint8_t *buffer,
case APPLE_MIDI_CMD_OK:
parse_apple_midi_cmd_ok(impl, ctrl, buffer, len, sa, salen);
break;
case APPLE_MIDI_CMD_NO:
parse_apple_midi_cmd_no(impl, ctrl, buffer, len, sa, salen);
break;
case APPLE_MIDI_CMD_CK:
parse_apple_midi_cmd_ck(impl, ctrl, buffer, len, sa, salen);
break;
case APPLE_MIDI_CMD_BY:
parse_apple_midi_cmd_by(impl, ctrl, buffer, len, sa, salen);
break;
case APPLE_MIDI_CMD_RS:
parse_apple_midi_cmd_rs(impl, ctrl, buffer, len, sa, salen);
break;
default:
break;
}