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/*
* gstdvbbackend
*
* gstdvbbackend is a small programm which captures a given set of dvb
* channels from one dvb device and provides the streams via minimal http.
*
*
* Copyright (C) 2011 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of gstdvbbackend.
*
* gstdvbbackend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* gstdvbbackend 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gstdvbbackend. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gst/gst.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include "streamer.h"
#include "datatypes.h"
#include "log.h"
static void added_cb(GstElement* sink, gint fd, gpointer data)
{
gint num_fds;
g_object_get(G_OBJECT(sink), "num_fds", &num_fds, NULL);
log_printf(INFO, "fdsink: successfully added client %d (sink has now %d fds)", fd, num_fds);
}
static void removed_cb(GstElement* sink, gint fd, gpointer data)
{
gint num_fds;
g_object_get(G_OBJECT(sink), "num_fds", &num_fds, NULL);
log_printf(INFO, "fdsink: successfully removed client %d (sink has now %d fds)", fd, num_fds);
}
static void fdremoved_cb(GstElement* sink, gint fd, gpointer data)
{
gint num_fds;
g_object_get(G_OBJECT(sink), "num_fds", &num_fds, NULL);
log_printf(INFO, "fdsink: successfully removed fd %d (sink has now %d fds)", fd, num_fds);
}
int init_server(const char* host, const char* port)
{
int server = socket(AF_INET, SOCK_STREAM, 0);
if(server < 0) {
log_printf(ERROR, "streamer: socket() call failed");
return -1;
}
// TODO: resolve host and port
struct sockaddr_in local_addr;
memset((char *) &local_addr, 0, sizeof(local_addr));
local_addr.sin_family = AF_INET;
local_addr.sin_port = htons(9001);
local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
if(bind(server, (struct sockaddr *)&local_addr, sizeof(local_addr))==-1) {
log_printf(ERROR, "streamer: bind() call failed");
return -1;
}
if(listen(server, 5)==-1) {
log_printf(ERROR, "streamer: listen() call failed");
return -1;
}
return server;
}
int streamer_init(streamer_t* streamer, GMainLoop *loop, const char* host, const char* port)
{
if(!streamer)
return -1;
streamer->fd_ = init_server(host, port);
if(streamer->fd_ < 0) {
return streamer->fd_;
}
streamer->loop_ = loop;
streamer->sink_ = gst_element_factory_make("multifdsink", "streamer");
if(!streamer->sink_) {
log_printf(ERROR, "the streamer object could not be created. Exiting.");
return -1;
}
// TODO: how the heck should we get the right value? 3 means keyframe...
g_object_set(G_OBJECT(streamer->sink_), "recover-policy", 3, NULL);
g_signal_connect(G_OBJECT(streamer->sink_), "client-added", G_CALLBACK(added_cb), streamer);
g_signal_connect(G_OBJECT(streamer->sink_), "client-removed", G_CALLBACK(removed_cb), streamer);
g_signal_connect(G_OBJECT(streamer->sink_), "client-fd-removed", G_CALLBACK(fdremoved_cb), streamer);
streamer->thread_ = NULL;
return 0;
}
static void add_fd(streamer_t* streamer, int fd)
{
log_printf(INFO, "adding fd %d to fdsink", fd);
g_signal_emit_by_name(G_OBJECT(streamer->sink_), "add", fd, NULL);
}
static void remove_fd(streamer_t* streamer, int fd)
{
log_printf(INFO, "removing fd %d from fdsink", fd);
g_signal_emit_by_name(G_OBJECT(streamer->sink_), "remove-flush", fd, NULL);
}
static gpointer streamer_thread_func(gpointer data)
{
streamer_t *streamer = (streamer_t*)data;
log_printf(NOTICE, "streamer thread started");
GstBuffer* buf = NULL;
for(;;) {
// TODO: call accept here
sleep(100);
break;
}
log_printf(NOTICE, "streamer thread stopped");
g_main_loop_quit(streamer->loop_);
return NULL;
}
int streamer_start(streamer_t* streamer)
{
if(!streamer)
return -1;
streamer->thread_ = g_thread_create(streamer_thread_func, streamer, TRUE, NULL);
if(!streamer->thread_) {
log_printf(ERROR, "streamer thread could not be started");
return -1;
}
return 0;
}
void streamer_stop(streamer_t* streamer)
{
if(!streamer)
return;
close(streamer->fd_);
if(streamer->thread_) {
log_printf(NOTICE, "waiting for streamer thread to stop");
g_thread_join(streamer->thread_);
}
}
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