void convert()
{
int max=0,min=255,up=0,thres=128,last=0;
int val,length1,length2;
while(1) {
length1=length2=0;
while(1) {
val=getc(in);
if (val==EOF) return;
if (val>max) max=val;
if (val<last && up) { up=0; thres=(max+min)/2; min=255;}
last=val;
if (val>thres) length1++;
else break;
}
while(1) {
val=getc(in);
if (val==EOF) return;
if (val<min) min=val;
if (val>last && !up) { up=1; thres=(max+min)/2; max=0; }
last=val;
if (val<thres) length2++;
else break;
}
output_level(1);
output_level(0);
if (length1+length2>=THRESHOLD) output_level(0);
if (length1+length2>10*THRESHOLD) output_silence((length1+length2)/9);
}
}
int retrieve (Job *job)
{
CURL *curl;
CURLcode rc;
FILE *outfp;
JobOptions *opts;
debug ("Retrieval process %d running job:", getpid());
debug_dump_job (job);
if (job->options.continue_from) {
outfp = fopen (job->options.save_to, "a");
} else {
outfp = fopen (job->options.save_to, "w");
}
if (!outfp) {
error_sys ("could not open `%s' for output",
job->options.save_to);
return 1;
}
curl = curl_easy_init ();
if (!curl) {
error ("could not initialize libcurl");
write_error_file (job, "could not initialize libcurl");
fclose (outfp);
return 1;
}
curl_easy_setopt (curl, CURLOPT_FILE, outfp);
curl_easy_setopt (curl, CURLOPT_URL, job->source_url);
curl_easy_setopt (
curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, (void *)job);
curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, job->error);
curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 0);
if (job->options.continue_from) {
curl_easy_setopt (curl, CURLOPT_RESUME_FROM,
(long)job->options.continue_from);
}
/* Now load the job's user-configurable parameters:
*/
opts = &job->options;
if (opts->proxy[0]) {
curl_easy_setopt (curl, CURLOPT_PROXY, opts->proxy);
}
if (opts->follow) {
curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt (curl, CURLOPT_MAXREDIRS, opts->follow);
} else {
curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 0);
}
if (opts->user_agent[0]) {
curl_easy_setopt (curl, CURLOPT_USERAGENT, opts->user_agent);
}
if (opts->use_ascii) {
curl_easy_setopt (curl, CURLOPT_TRANSFERTEXT, 1);
}
if (opts->referer[0]) {
curl_easy_setopt (curl, CURLOPT_REFERER, opts->referer);
}
if (opts->include) {
curl_easy_setopt (curl, CURLOPT_HEADER, 1);
}
if (opts->interface[0]) {
curl_easy_setopt (curl, CURLOPT_INTERFACE, opts->interface);
}
if (opts->proxy_auth[0]) {
curl_easy_setopt (curl, CURLOPT_PROXYUSERPWD, opts->proxy_auth);
}
if (opts->auth[0]) {
curl_easy_setopt (curl, CURLOPT_USERPWD, opts->auth);
}
/* If wmget is verbose, set libcurl to verbose too...
*/
if (output_level () > OL_NORMAL)
curl_easy_setopt (curl, CURLOPT_VERBOSE, 1);
/* Finally, perform the download:
*/
job->status = J_RUNNING;
rc = curl_easy_perform (curl);
if (rc) {
if (job->status == J_STOPPING) {
info ("aborted by user");
job->status = J_COMPLETE;
} else {
error (job->error);
write_error_file (job, job->error);
job->status = J_COMPLETE;
}
} else {
job->status = J_COMPLETE;
}
curl_easy_cleanup (curl);
fclose (outfp);
if (rc)
return 1;
return 0;
}