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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#include <boost/algorithm/string.hpp>
#include "MilesSessionInvoker.h"
#include "uscxml/server/HTTPServer.h"
#include <glog/logging.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
#include <inttypes.h>
#include <stdlib.h> /* srand, rand */
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool pluginConnect(pluma::Host& host) {
host.add( new MilesSessionInvokerProvider() );
return true;
}
#endif
MilesSessionInvoker::MilesSessionInvoker() {
/* Initalize Miles */
miles_init();
/* media buffers */
init_media_buffers();
_isRunning = false;
}
MilesSessionInvoker::~MilesSessionInvoker() {
free_media_buffers();
};
boost::shared_ptr<InvokerImpl> MilesSessionInvoker::create(InterpreterImpl* interpreter) {
boost::shared_ptr<MilesSessionInvoker> invoker = boost::shared_ptr<MilesSessionInvoker>(new MilesSessionInvoker());
invoker->_interpreter = interpreter;
return invoker;
}
Data MilesSessionInvoker::getDataModelVariables() {
Data data;
return data;
}
void MilesSessionInvoker::init_media_buffers() {
video_out_buf = NULL;
encoded_out_img = NULL;
audio_in_buf = NULL;
render_img = NULL;
render_img_size = 0;
audio_data = NULL;
encoded_out_audio = NULL;
audio_read_buf = NULL;
video_data = (char *)malloc(1000000);
}
void MilesSessionInvoker::free_media_buffers() {
if(video_out_buf)
free(video_out_buf);
video_out_buf = NULL;
if(encoded_out_img)
free(encoded_out_img);
encoded_out_img = NULL;
if(audio_in_buf)
free(audio_in_buf);
audio_in_buf = NULL;
if(render_img)
free(render_img);
render_img = NULL;
render_img_size = 0;
if(audio_data)
free(audio_data);
audio_data = NULL;
if(video_data)
free(video_data);
video_data = NULL;
if(encoded_out_audio)
free(encoded_out_audio);
encoded_out_audio = NULL;
if(audio_read_buf)
free(audio_read_buf);
audio_read_buf = NULL;
}
void MilesSessionInvoker::send(const SendRequest& req) {
// std::cout << req;
std::string origin;
Event::getParam(req.params, "origin", origin);
if (false) {
} else if (iequals(req.name, "start")) {
std::string userId, reflector, session;
Event::getParam(req.params, "userid", userId);
Event::getParam(req.params, "reflector", reflector);
Event::getParam(req.params, "session", session);
processEventStart(origin, userId, reflector, session);
} else if (iequals(req.name, "participants")) {
processEventParticipants(origin);
} else if (iequals(req.name, "thumbnail")) {
std::string userId;
Event::getParam(req.params, "userid", userId);
processEventThumbnail(origin, userId);
} else if (iequals(req.name, "videoon")) {
std::string userId;
Event::getParam(req.params, "userid", userId);
processEventVideoOn(origin, userId);
} else if (iequals(req.name, "videooff")) {
std::string userId;
Event::getParam(req.params, "userid", userId);
processEventVideoOff(origin, userId);
} else if (iequals(req.name, "audioon")) {
std::string userId;
Event::getParam(req.params, "userid", userId);
processEventAudioOn(origin, userId);
} else if (iequals(req.name, "audiooff")) {
std::string userId;
Event::getParam(req.params, "userid", userId);
processEventAudioOff(origin, userId);
} else if (iequals(req.name, "sendvideo")) {
std::string userId, compression;
size_t height, width, framerate;
Event::getParam(req.params, "userid", userId);
Event::getParam(req.params, "height", height);
Event::getParam(req.params, "width", width);
Event::getParam(req.params, "framerate", framerate);
processEventSendVideo(origin, width, height, framerate, compression);
} else if (iequals(req.name, "sendvideooff")) {
processEventSendVideoOff(origin);
} else if (iequals(req.name, "sendaudio")) {
std::string userId, encoding;
Event::getParam(req.params, "userid", userId);
Event::getParam(req.params, "encoding", encoding);
processEventSendAudio(origin, encoding);
} else if (iequals(req.name, "sendaudiooff")) {
processEventSendAudioOff(origin);
} else if (iequals(req.name, "gettext")) {
processEventGetText(origin);
} else if (iequals(req.name, "posttext")) {
std::string userId, message;
Event::getParam(req.params, "userid", userId);
Event::getParam(req.params, "message", message);
processEventPostText(origin, userId, message);
} else {
LOG(ERROR) << "Do not know how to handle event " << req.name;
}
#if 0
if (iequals(req.name, "disconnect")) {
std::string reflectorIP = "127.0.0.1";
Event::getParam(req.params, "reflectorip", reflectorIP);
std::string problemName = "Generic";
Event::getParam(req.params, "problemname", problemName);
int rv;
rv = miles_disconnect_reflector_session((char*)reflectorIP.c_str(), (char*)problemName.c_str());
if (!rv) {
LOG(ERROR) << "Could not disconnect from reflector session";
return;
}
free_media_buffers();
_isRunning = false;
} else if (iequals(req.name, "image")) {
// client wants an image
URL imageURL1("emptyface.jpg");
//URL imageURL2("test2.jpeg");
imageURL1.toAbsolute(_interpreter->getBaseURI());
//imageURL2.toAbsolute(_interpreter->getBaseURI());
std::stringstream ssImage;
ssImage << imageURL1;
/*if (alternate) {
ssImage << imageURL1;
} else {
ssImage << imageURL2;
}
alternate = !alternate;*/
std::string imageContent = ssImage.str();
Event retEv;
int has_thumb = 0;
struct miles_rtp_in_stream *rtps;
struct miles_list *p;
struct thumb_entry *te;
_mutex.lock();
// MJ: first param, void * to image, second size of image
//retEv.data.compound["base64"] = Data(base64_encode(imageContent.data(), imageContent.size()), Data::VERBATIM);
if(video_session->instreams) {
rtps = video_session->instreams->stream;
if(rtps) {
p = thumb_list;
while(p) {
te = (struct thumb_entry *)p->item;
if(te->ssrc == rtps->ssrc) {
break;
}
p = p->next;
}
if(p) {
has_thumb = 1;
retEv.data.compound["base64"] = Data(base64_encode(te->img_buf, te->img_size), Data::VERBATIM);
}
}
}
if(!has_thumb) {
// Return empty face image
retEv.data.compound["base64"] = Data(base64_encode(imageContent.data(), imageContent.size()), Data::VERBATIM);
}
_mutex.unlock();
std::string origin;
Event::getParam(req.params, "origin", origin);
retEv.data.compound["origin"] = origin;
tthread::this_thread::sleep_for(tthread::chrono::milliseconds(20));
returnEvent(retEv);
} else if (iequals(req.name, "connect")) {
//std::cout << req;
if(_isRunning) {
LOG(ERROR) << "already connected";
return;
}
std::string email = "someSaneDefault";
Event::getParam(req.params, "email", email);
std::string reflectorIp = "127.0.0.1";
Event::getParam(req.params, "reflectorIp", reflectorIp);
std::string problemName = "Generic";
Event::getParam(req.params, "problemName", problemName);
LOG(ERROR) << "connect called, reflector ip = ";
LOG(ERROR) << reflectorIp;
LOG(ERROR) << problemName;
LOG(ERROR) << email;
//return;
int rv;
rv = miles_connect_reflector_session((char*)reflectorIp.c_str(), (char*)problemName.c_str());
if (!rv) {
LOG(ERROR) << "Could not setup reflector session";
return;
}
LOG(ERROR) << "session set up";
/* Set up audio and video RTP sockets */
video_rtp_in_socket = miles_net_setup_udp_socket((char*)reflectorIp.c_str(), video_port, video_port, 10, 16000);
audio_rtp_in_socket = miles_net_setup_udp_socket((char*)reflectorIp.c_str(), audio_port, audio_port, 10, 16000);
video_rtp_out_socket = video_rtp_in_socket; //miles_net_setup_udp_socket((char*)reflectorIP.c_str(), video_port, 0, 10, 16000);
audio_rtp_out_socket = audio_rtp_in_socket; //miles_net_setup_udp_socket((char*)reflectorIP.c_str(), audio_port, 0, 10, 16000);
LOG(ERROR) << "rtp sockets set up";
/* Set up audio and video RTCP sockets */
video_rtcp_in_socket = miles_net_setup_udp_socket((char*)reflectorIp.c_str(), video_port+1, video_port+1, 10, 16000);
audio_rtcp_in_socket = miles_net_setup_udp_socket((char*)reflectorIp.c_str(), audio_port+1, audio_port+1, 10, 16000);
video_rtcp_out_socket = video_rtcp_in_socket; //miles_net_setup_udp_socket((char*)reflectorIP.c_str(), video_port+1, 0, 10, 16000);
audio_rtcp_out_socket = audio_rtcp_in_socket; //miles_net_setup_udp_socket((char*)reflectorIP.c_str(), audio_port+1, 0, 10, 16000);
LOG(ERROR) << "rtcp sockets set up";
/* Set up RTP audio and video sessions */
video_session = miles_rtp_setup_session(video_rtp_in_socket, MILES_RTP_MEDIA_TYPE_VIDEO);
audio_session = miles_rtp_setup_session(audio_rtp_in_socket, MILES_RTP_MEDIA_TYPE_AUDIO);
/* Set up RTCP audio and video sessions */
video_session->rtcp_session = miles_rtp_setup_rtcp_session(video_session, video_rtcp_in_socket);
audio_session->rtcp_session = miles_rtp_setup_rtcp_session(audio_session, audio_rtcp_in_socket);
LOG(ERROR) << "rtp/rtcp sessions set up";
/* Set up video capture */
video_grabber_available = setup_video_grabber();
/* Set up audio capture/playback */
audio_available = setup_audio();
/* Set up outgoing RTP stream for video */
if(video_grabber_available) {
out_rtp_video_stream = miles_rtp_setup_outgoing_stream(video_session, video_rtp_out_socket, 0, MILES_RTP_PAYLOAD_TYPE_JPEG);
out_rtp_video_stream->codec_ctx = video_encoder;
out_rtcp_video_stream = miles_rtp_setup_outgoing_rtcp_stream(video_session->rtcp_session, video_rtcp_out_socket, out_rtp_video_stream->ssrc);
}
/* Set up outgoing RTP stream for audio */
if(audio_available) {
out_rtp_audio_stream = miles_rtp_setup_outgoing_stream(audio_session, audio_rtp_out_socket, 0, MILES_RTP_PAYLOAD_TYPE_L16);
/* Associate RTP stream with codec context */
out_rtp_audio_stream->codec_ctx = audio_encoder;
/* Set up outgoing RTCP streams for audio */
out_rtcp_audio_stream = miles_rtp_setup_outgoing_rtcp_stream(audio_session->rtcp_session, audio_rtcp_out_socket, out_rtp_audio_stream->ssrc);
}
_isRunning = true;
if(audio_available)
_audioThread = new tthread::thread(MilesSessionInvoker::runAudio, this);
_videoThread = new tthread::thread(MilesSessionInvoker::runVideo, this);
}
#endif
}
void MilesSessionInvoker::processEventStart(const std::string& origin, const std::string& userid, const std::string& reflector, const std::string& session) {
Event ev;
ev.name = "start.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventParticipants(const std::string& origin) {
Event ev;
// create an array with objects inside
for (int i = 0; i < 5; i++) {
Data userInfo;
userInfo.compound["name"] = Data("username" + toStr(i), Data::VERBATIM);
userInfo.compound["email"] = Data("usermail" + toStr(i), Data::VERBATIM);
ev.data.compound["participants"].array.push_back(userInfo);
}
ev.name = "participants.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventThumbnail(const std::string& origin, const std::string& userid) {
_imageSeq = (++_imageSeq % 4);
URL imageURL("test" + toStr(_imageSeq + 1) + ".jpeg");
imageURL.toAbsolute(_interpreter->getBaseURI());
std::stringstream ssImage;
ssImage << imageURL;
std::string imageContent = ssImage.str();
Event ev;
ev.name = "thumbnail.reply";
ev.data.compound["origin"] = origin;
// as we support ECMAScript TYpedArrays, we can handle blobs in the datamodel
ev.data.compound["image"] = Data(imageContent.data(), imageContent.size(), "image/jpeg");
returnEvent(ev);
}
void MilesSessionInvoker::processEventVideoOn(const std::string& origin, const std::string& userid) {
Event ev;
ev.name = "videoon.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventVideoOff(const std::string& origin, const std::string& userid) {
Event ev;
ev.name = "videooff.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventAudioOn(const std::string& origin, const std::string& userid) {
Event ev;
ev.name = "audioon.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventAudioOff(const std::string& origin, const std::string& userid) {
Event ev;
ev.name = "audiooff.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventSendVideo(const std::string& origin, size_t width, size_t height, size_t framerate, const std::string& compression) {
Event ev;
ev.name = "sendvideo.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventSendVideoOff(const std::string& origin) {
Event ev;
ev.name = "sendvideooff.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventSendAudio(const std::string& origin, const std::string& encoding) {
Event ev;
ev.name = "sendaudio.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventSendAudioOff(const std::string& origin) {
Event ev;
ev.name = "sendaudiooff.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventPostText(const std::string& origin, const std::string& userid, const std::string& message) {
Event ev;
ev.name = "posttext.reply";
ev.data.compound["origin"] = origin;
returnEvent(ev);
}
void MilesSessionInvoker::processEventGetText(const std::string& origin) {
Event ev;
ev.name = "gettext.reply";
ev.data.compound["origin"] = origin;
if (rand() % 5 == 0) { // return some mocked up chat message
ev.data.compound["message"] = Data(".. and then she was all like: aren't we supposed to discuss work related stuff?", Data::VERBATIM);
ev.data.compound["user"] = Data("username1", Data::VERBATIM);
}
returnEvent(ev);
}
void MilesSessionInvoker::runAudio(void* instance) {
((MilesSessionInvoker*)instance)->processAudio();
}
void MilesSessionInvoker::runVideo(void* instance) {
((MilesSessionInvoker*)instance)->processVideo();
}
void MilesSessionInvoker::processVideo() {
while(_isRunning) {
rtp_video_receiver(video_session);
if(video_grabber_available)
video_transmitter(video_grabber, video_encoder, out_rtp_video_stream, out_rtcp_video_stream);
}
}
void MilesSessionInvoker::processAudio() {
while(_isRunning) {
rtp_audio_receiver(audio_session);
audio_transmitter(audio_dev, audio_encoder, out_rtp_audio_stream, out_rtcp_audio_stream);
}
}
int MilesSessionInvoker::setup_audio() {
/* Initialize and configure audio encoder */
audio_encoder = miles_audio_codec_init_encoder();
audio_encoder->codec_id = miles_audio_codec_get_encoder_for_rtp_payload_type(MILES_RTP_PAYLOAD_TYPE_L16);
audio_encoder->sample_rate = 16000;
audio_encoder->bytes_per_sample = 2;
audio_encoder->chunk_size = 320; /* 20 ms */
audio_encoder->input_format = MILES_AUDIO_FORMAT_PCM;
int rv = miles_audio_codec_setup_encoder(audio_encoder);
if(rv == 0) {
/* Couldn't set up audio codec */
LOG(ERROR) << "Couldn't set up audio codec";
return 0;
}
LOG(ERROR) << "audio enc set up";
/* Set up audio grabber */
int n = miles_audio_device_get_supported_devices(MILES_AUDIO_DEVICE_OPENAL, &supported_audio_devices);
if(n<=0) {
/* No audio device available */
LOG(ERROR) << "No audio device available";
return 0;
}
/* Use first device that supports capture */
for(int i=0; i<n; i++) {
audio_dev = miles_audio_device_open(MILES_AUDIO_DEVICE_OPENAL, supported_audio_devices[i].id, MILES_AUDIO_FORMAT_PCM, 16000, 2, 1, 640, 1);
if(audio_dev)
break;
}
if(audio_dev == NULL) {
LOG(ERROR) << "No audio device supporting capture available";
return 0;
}
/* Find first audio device that supports playback */
for(int i=0; i<n; i++) {
audio_dev_playback = miles_audio_device_open(MILES_AUDIO_DEVICE_OPENAL, supported_audio_devices[i].id, MILES_AUDIO_FORMAT_PCM, 16000, 2, 1, 640, 0);
if(audio_dev_playback) {
audio_dev_playback_id = supported_audio_devices[i].id;
break;
}
}
if(audio_dev_playback == NULL) {
LOG(ERROR) << "No audio device supporting playback available";
return 0;
}
audio_in_buf = (char *)malloc(audio_encoder->sample_rate*audio_encoder->bytes_per_sample);
encoded_out_audio = (char *)malloc(audio_encoder->sample_rate*audio_encoder->bytes_per_sample);
audio_read_buf = (char *)malloc(audio_encoder->sample_rate*audio_encoder->bytes_per_sample);
audio_data = (char *)malloc(1000000);
LOG(ERROR) << "audio device set up";
return 1;
}
int MilesSessionInvoker::setup_video_grabber() {
struct miles_video_grabber_description *grabber_description;
/* Initialize and configure video encoder */
video_encoder = miles_video_codec_init_encoder();
video_encoder->codec_id = miles_video_codec_get_encoder_for_rtp_payload_type(MILES_RTP_PAYLOAD_TYPE_JPEG);
video_encoder->width = 320;
video_encoder->height = 240;
video_encoder->qfactor = 50;
int rv = miles_video_codec_setup_encoder(video_encoder);
if (!rv) {
LOG(ERROR) << "Could not setup video encoder";
return 0;
}
/* Set up video grabber */
int n = miles_video_grabber_get_supported_grabbers(&supported_video_grabbers);
if(n<=0) {
/* No video grabber available */
LOG(ERROR) << "No video grabber available";
return 0;
}
int use_grabber = 0;
if(n>1) {
/* If more than one grabber, select one that is not 'Test' */
for(int i=0; i<n; i++) {
grabber_description = miles_video_grabber_get_description(supported_video_grabbers[i]);
if(strcmp(grabber_description->name, "Test") != 0) {
/* Make sure there is a device */
if(grabber_description->devices != NULL) {
use_grabber = i;
break;
}
}
}
}
video_grabber = miles_video_grabber_create_context(supported_video_grabbers[use_grabber]);
video_grabber->width = video_encoder->width;
video_grabber->height = video_encoder->height;
video_grabber->frame_rate = 25*100;
miles_video_grabber_setup(video_grabber);
free(supported_video_grabbers);
video_out_buf = (char *)malloc(video_encoder->width*video_encoder->height*4);
encoded_out_img = (char *)malloc(video_encoder->width*video_encoder->height*4);
return 1;
}
void MilesSessionInvoker::cancel(const std::string sendId) {
}
void MilesSessionInvoker::invoke(const InvokeRequest& req) {
video_port = 5566;
audio_port = 5568;
thumb_list = NULL;
save_image = 0;
}
/**
* Render video image in a window
*/
void MilesSessionInvoker::render_video_image(char *img, int width, int height, int img_format) {
char *img_buf_ptr;
if(img_format != MILES_IMAGE_RGB) {
if(render_img==NULL || render_img_size < width*height*4) {
if(render_img)
free(render_img);
render_img_size = width*height*4;
render_img = (char *)malloc(render_img_size);
}
miles_image_convert(img, render_img, img_format, MILES_IMAGE_RGB, width, height);
img_buf_ptr = render_img;
} else {
img_buf_ptr = img;
}
/* save image to disk */
if(save_image)
miles_image_file_write(MILES_IMAGE_FILE_FORMAT_PNG, MILES_IMAGE_RGB, "image.png", width, height, img_buf_ptr);
/* render image in window... to be implementd. */
}
/**
* Send an audio chunk decoded from an RTP stream to an audio device
*/
void MilesSessionInvoker::playback_audio(u_int32_t ssrc, char *buf, int sample_rate, int bps, int audio_format, int size) {
if(size<0)
return;
/* re-configure audio device, if needed */
if(audio_dev_playback == NULL || audio_dev_playback->chunk_size != size || audio_dev_playback->sample_rate != sample_rate ||
audio_dev_playback->format != audio_format || audio_dev_playback->bytes_per_sample != bps) {
if(audio_dev_playback)
miles_audio_device_close(MILES_AUDIO_DEVICE_OPENAL, audio_dev_playback, 0);
audio_dev_playback = miles_audio_device_open(MILES_AUDIO_DEVICE_OPENAL, audio_dev_playback_id, audio_format, sample_rate, bps, 1, size, 0);
if(audio_dev_playback == NULL)
return;
}
/* play audio */
miles_audio_device_write(MILES_AUDIO_DEVICE_OPENAL, audio_dev_playback, buf, size);
}
/**
* Handle incoming video streams
*/
int MilesSessionInvoker::video_receiver(struct miles_rtp_in_stream *rtp_stream, char *data, int bytes_read) {
int status, n;
struct miles_video_codec_decode_context *codec_ctx;
char *codec_name;
struct miles_list *p;
struct thumb_entry *te;
codec_ctx = (struct miles_video_codec_decode_context *)rtp_stream->codec_ctx;
if(codec_ctx == NULL || !miles_video_codec_decoder_supports_rtp_payload_type(codec_ctx, rtp_stream->payload_type)) {
if(codec_ctx)
miles_video_codec_destroy_decoder(codec_ctx);
codec_ctx = miles_video_codec_init_decoder();
codec_ctx->codec_id = miles_video_codec_get_decoder_for_rtp_payload_type(rtp_stream->payload_type);
if(codec_ctx->codec_id == MILES_VIDEO_CODEC_UNKNOWN) {
/* Cannot decode the video stream */
return 0;
}
status = miles_video_codec_setup_decoder(codec_ctx);
if(status == 0) {
/* Cannot decode the video stream */
return 0;
}
rtp_stream->codec_ctx = (void *)codec_ctx;
return 0;
}
/* Find thumbnail list entry of the stream */
_mutex.lock();
p = thumb_list;
while(p) {
te = (struct thumb_entry *)p->item;
if(te->ssrc == rtp_stream->ssrc) {
break;
}
p = p->next;
}
if(p==NULL) {
// Create new thumbnail list entry
te = (struct thumb_entry *)malloc(sizeof(struct thumb_entry));
if(thumb_list==NULL)
p = thumb_list = miles_list_create(te);
else
p = miles_list_append(thumb_list, te);
te->ssrc = rtp_stream->ssrc;
te->window_ctx = NULL;
te->img_buf = (char *)malloc(bytes_read);
te->buf_size = bytes_read;
te->img_size = 0;
te->decode_buf = NULL;
}
if(te->buf_size < bytes_read) {
// Need bigger image buffer
free(te->img_buf);
te->img_buf = (char *)malloc(bytes_read);
te->buf_size = bytes_read;
}
/*
* If codec is JPEG, thumbnail image can be saved without decoding
*/
codec_name = miles_video_codec_get_codec_name(codec_ctx->codec_id);
if(codec_name==NULL) {
_mutex.unlock();
return 0;
}
if(strcmp(codec_name, "JPEG")==0) {
memcpy(te->img_buf, data, bytes_read);
te->img_size = bytes_read;
te->img_format = WEBCONFERO_THUMB_JPEG;
//miles_image_file_write(MILES_IMAGE_FILE_FORMAT_JPG, MILES_IMAGE_JPEG, "test.jpg", bytes_read, 1, data);
// If we're not going to render the video in a window, we're done now
if(te->window_ctx==NULL) {
_mutex.unlock();
return 0;
}
} else {
te->img_format = WEBCONFERO_THUMB_PNG;
}
free(codec_name);
if(te->decode_buf==NULL) {
te->decode_buf = (char *)malloc(1920*1080*4);
}
n = miles_video_codec_decode(codec_ctx, data, te->decode_buf, bytes_read);
if(n > 0) {
if(te->img_format==WEBCONFERO_THUMB_PNG) {
if(n > te->buf_size) {
free(te->img_buf);
te->img_buf = (char *)malloc(n);
te->buf_size = n;
}
// Need to insert a PNG header here...
memcpy(te->img_buf, te->decode_buf, n);
te->img_size = n;
}
if(te->window_ctx)
render_video_image(te->decode_buf, codec_ctx->width, codec_ctx->height, codec_ctx->output_format);
}
_mutex.unlock();
return n;
}
/**
* Handle incoming audio streams
*/
int MilesSessionInvoker::audio_receiver(struct miles_rtp_in_stream *rtp_stream, char *data, int bytes_read) {
int status, size;
struct miles_audio_codec_decode_context *codec_ctx;
codec_ctx = (struct miles_audio_codec_decode_context *)rtp_stream->codec_ctx;
if(codec_ctx == NULL || !miles_audio_codec_decoder_supports_rtp_payload_type(codec_ctx, rtp_stream->payload_type)) {
if(codec_ctx)
miles_audio_codec_destroy_decoder(codec_ctx);
codec_ctx = miles_audio_codec_init_decoder();
codec_ctx->codec_id = miles_audio_codec_get_decoder_for_rtp_payload_type(rtp_stream->payload_type);
if(codec_ctx->codec_id == MILES_AUDIO_CODEC_UNKNOWN) {
/* Cannot decode the audio stream */
return 0;
}
status = miles_audio_codec_setup_decoder(codec_ctx);
if(status == 0) {
/* Cannot decode the audio stream */
return 0;
}
rtp_stream->codec_ctx = (void *)codec_ctx;
}
size = miles_audio_codec_decode(codec_ctx, data, audio_in_buf);
if(size > 0) {
playback_audio(rtp_stream->ssrc, audio_in_buf, codec_ctx->sample_rate, codec_ctx->bytes_per_sample, codec_ctx->output_format, size);
}
return size;
}
/**
* Read and depacketize incoming RTP streams
*/
void MilesSessionInvoker::rtp_audio_receiver(struct miles_rtp_session *rtp_session) {
int n;
struct miles_rtp_in_stream *rtp_stream;
/* Poll RTP socket, read all available RTP packets */
while (1) {
n = miles_net_poll_socket(rtp_session->socket);
if(n<=0) return;
/* Read RTP data */
n = miles_rtp_recv(rtp_session, &rtp_stream, audio_data);
if(n>0) {
audio_receiver(rtp_stream, audio_data, n);
}
/* Poll RTCP socket */
n = miles_net_poll_socket(rtp_session->rtcp_session->socket);
if(n>0) {
/* Do RTCP packet processEventing */
n = miles_rtp_recv_rtcp(rtp_session->rtcp_session);
}
}
}
void MilesSessionInvoker::rtp_video_receiver(struct miles_rtp_session *rtp_session) {
int n;
struct miles_rtp_in_stream *rtp_stream;
/* Poll RTP socket, read all available RTP packets */
while (1) {
n = miles_net_wait_socket(rtp_session->socket, 10);
if(n<=0) return;
/* Read RTP data */
n = miles_rtp_recv(rtp_session, &rtp_stream, video_data);
if(n>0) {
video_receiver(rtp_stream, video_data, n);
}
/* Poll RTCP socket */
n = miles_net_poll_socket(rtp_session->rtcp_session->socket);
if(n>0) {
/* Do RTCP packet processEventing */
n = miles_rtp_recv_rtcp(rtp_session->rtcp_session);
}
}
}
/**
* Send RTP video stream
*/
int MilesSessionInvoker::video_transmitter(struct miles_video_grabber_context *grabber, struct miles_video_codec_encode_context *codec_ctx, struct miles_rtp_out_stream *rtp_stream, struct miles_rtcp_out_stream *out_rtcp_stream) {
int n;
static struct timeval last_time;
static int first_time=1;
struct timeval now;
int tbf;
if (first_time) {
gettimeofday(&last_time, 0);
first_time = 0;
}
gettimeofday(&now, 0);
tbf = 100000 / grabber->frame_rate;
if (elapsed_time(&last_time, &now) < tbf)
return 0;
last_time = now;
/* Send RTCP packets, if due */
miles_rtp_send_rtcp(out_rtcp_stream);
n = miles_video_grabber_grab(grabber, video_out_buf);
if(n <= 0)
return 0;
if(grabber->image_format != codec_ctx->input_format) {
/* image conversion ... */
}
n = miles_video_codec_encode(codec_ctx, video_out_buf, encoded_out_img);
if(n<=0)
return 0;
return miles_rtp_send(rtp_stream, encoded_out_img, n);
}
/**
* Send RTP audio stream
*/
int MilesSessionInvoker::audio_transmitter(struct miles_audio_device *dev, struct miles_audio_codec_encode_context *codec_ctx, struct miles_rtp_out_stream *rtp_stream, struct miles_rtcp_out_stream *out_rtcp_audio_stream) {
int n;
/* Send RTCP packets, if due */
miles_rtp_send_rtcp(out_rtcp_audio_stream);
n = miles_audio_device_read(MILES_AUDIO_DEVICE_OPENAL, dev, audio_read_buf, codec_ctx->chunk_size);
if(n <= 0)
return 0;
if(dev->format != codec_ctx->input_format) {
/* audio conversion needed ... */
}
n = miles_audio_codec_encode(codec_ctx, audio_read_buf, encoded_out_audio);
if(n<=0)
return 0;
return miles_rtp_send(rtp_stream, encoded_out_audio, n);
}
}
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