dsmcc-decoder.c

Parses UK Profile 1.05/1.06 Object Carousel and saves files to disk (all stored under /tmp/cache at

#include <stdlib.h>
#include <zlib.h>
#include <vdr/receiver.h>
#include "dsmcc-decoder.h"
#include "libdsmcc.h"
// #include <mpatrol.h>

cDsmccReceiver::cDsmccReceiver(const char *channel) : cReceiver(0, -1, 0) {

	if(channel != '\0') {
		name = (char*)malloc(strlen(channel)+1);
		strcpy(name, channel);
	} else {
		name = (char*)malloc(7+1);
		strcpy(name, "Unknown");
	}

	status = dsmcc_open(channel, NULL);	/* XXX pass log_fd */

        scanning = 1;   /* Set to 1 to scan thorugh all channels for carousel
                           Set to 0 to disable
                        */


}

cDsmccReceiver::~cDsmccReceiver() {

	/* Free any carousel data and cached data. 
	 * TODO - actually cache on disk the cache data
	 * TODO - more terrible memory madness, this all needs improving
	 */

	/* Free any unattached streams */

	if(name)
		free(name);

//      if(debug_fd != NULL) fclose(debug_fd);
//      if(test_fd != NULL) fclose(test_fd);

        Detach(); /* TODO ??? */
}

bool cDsmccReceiver::Active() {
	return active;
}

void cDsmccReceiver::Activate(bool On) {
	;
}

void cDsmccReceiver::AddStream(struct dsmcc_status *status, int pid) {
	struct pid_buffer *buf, *lbuf;

	for(lbuf=status->buffers;lbuf!=NULL;lbuf=lbuf->next) { 
		if(lbuf->pid == pid) { return; }
	}

//	esyslog("Created buffer for pid %d\n", pid);

	buf = (struct pid_buffer *)malloc(sizeof(struct pid_buffer));
	buf->pid = pid;
	buf->pointer_field = 0;
	buf->in_section = 0;
	buf->cont = -1;
	buf->next = NULL;

	if(status->buffers == NULL) {
		status->buffers = buf;
	} else {
		for(lbuf=status->buffers;lbuf->next!=NULL;lbuf=lbuf->next) { ; }
		lbuf->next = buf;
	}

	AddPid(pid);

	if(!Active()) {
		Start();
		active = true;
	}
}

/* Start of new logging stuff */
#define ilog(a...)
#define dlog(a...)
#define elog(a...)
	
void cDsmccReceiver::Receive(uchar *Data, int Length) {

	dsmcc_receive(status, Data, Length);

	if(status->newstreams) {
		struct stream *s;

        	for(s=status->newstreams;s!=NULL;s=s->next) {
                	AddStream(status, s->pid);
		}

	        if(status->streams == NULL) {
                    status->streams = status->newstreams;
                } else {
                    struct stream *str;
                    for(str=status->streams;str!=NULL;str=str->next){;}
                    str->next = status->newstreams;
                }
                    status->newstreams = NULL;
        }

}