moonlight-stream/moonlight-common-c
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Reorder video stream initialization to prevent a ICMP port unreachable message that could teardown our NAT hole

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This commit is contained in:
Cameron Gutman 2015-01-09 00:22:29 -05:00
parent 6db4a4fc4e
commit d855742379
1 changed files with 29 additions and 21 deletions
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46
limelight-common/VideoStream.c
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@ -111,11 +111,6 @@ int readFirstFrame(void) {
SOCK_RET err;
int offset = 0;
firstFrameSocket = connectTcpSocket(remoteHost, FIRST_FRAME_PORT);
if (firstFrameSocket == INVALID_SOCKET) {
return LastSocketError();
}
firstFrame = (char*) malloc(FIRST_FRAME_MAX);
if (firstFrame == NULL) {
return -1;
@ -132,7 +127,11 @@ int readFirstFrame(void) {
}
Limelog("Read %d bytes\n", offset);
processRtpPayload((PNV_VIDEO_PACKET) firstFrame, offset);
// We can just ignore this data for now. It's the act of reading
// it that matters. If this changes, we'll need to move this call before
// starting the receive thread to avoid state corruption in the depacketizer.
free(firstFrame);
return 0;
}
@ -170,23 +169,13 @@ int startVideoStream(void* rendererContext, int drFlags) {
callbacks.setup(configuration.width,
configuration.height, 60, rendererContext, drFlags);
rtpSocket = bindUdpSocket();
if (rtpSocket == INVALID_SOCKET) {
return LastSocketError();
}
err = PltCreateThread(UdpPingThreadProc, NULL, &udpPingThread);
if (err != 0) {
return err;
}
// This must be called before the decoder thread starts submitting
// decode units
callbacks.start();
err = readFirstFrame();
if (err != 0) {
return err;
rtpSocket = bindUdpSocket();
if (rtpSocket == INVALID_SOCKET) {
return LastSocketError();
}
err = PltCreateThread(ReceiveThreadProc, NULL, &receiveThread);
@ -199,5 +188,24 @@ int startVideoStream(void* rendererContext, int drFlags) {
return err;
}
// Connect this socket to open port 47998 for our ping thread
firstFrameSocket = connectTcpSocket(remoteHost, FIRST_FRAME_PORT);
if (firstFrameSocket == INVALID_SOCKET) {
return LastSocketError();
}
// Start pinging before reading the first frame so GFE knows where
// to send UDP data
err = PltCreateThread(UdpPingThreadProc, NULL, &udpPingThread);
if (err != 0) {
return err;
}
// Read the first frame to start the flow of video
err = readFirstFrame();
if (err != 0) {
return err;
}
return 0;
}