/* Run a child process, redirecting its standard file handles to a socket
descriptor. Return the child's PID or -1 on error. */
int netrun(struct fdinfo *fdn, char *cmdexec)
{
struct subprocess_info *info;
HANDLE thread;
int pid;
info = (struct subprocess_info *) safe_malloc(sizeof(*info));
info->fdn = *fdn;
pid = start_subprocess(cmdexec, info);
if (pid == -1) {
free(info);
close(info->fdn.fd);
return -1;
}
/* Start up the thread to handle process I/O. */
thread = CreateThread(NULL, 0, subprocess_thread_func, info, 0, NULL);
if (thread == NULL) {
if (o.verbose)
logdebug("Error in CreateThread: %d\n", GetLastError());
free(info);
return -1;
}
CloseHandle(thread);
return pid;
}
/* Run the given command line as if by exec. Doesn't return. */
void netexec(struct fdinfo *fdn, char *cmdexec)
{
struct subprocess_info *info;
int pid;
DWORD ret;
info = (struct subprocess_info *) safe_malloc(sizeof(*info));
info->fdn = *fdn;
pid = start_subprocess(cmdexec, info);
if (pid == -1)
ExitProcess(2);
/* Run the subprocess thread function, but don't put it in a thread. Just
run it and exit with its return value because we're simulating exec. */
ExitProcess(subprocess_thread_func(info));
}
int main(int argc, char *argv[]) {
OutputAdapter *oadp;
int vpfd, apfd;
pid_t child;
Pipe<AudioPacket *> *apipe;
int aplay_pipe;
static struct option options[] = {
{ "aplay", 0, 0, 'a' },
{ "card", 1, 0, 'c' },
{ 0, 0, 0, 0 }
};
int card = 0;
int aplay = 0;
int opt;
/* argument processing */
while ((opt = getopt_long(argc, argv, "ac:", options, NULL)) != -1) {
switch (opt) {
case 'c':
card = atoi(optarg);
break;
case 'a':
aplay = 1;
break;
default:
usage(argv[0]);
exit(1);
}
}
if (argc - optind != 1) {
usage(argv[0]);
exit(1);
}
child = start_subprocess(argv[optind], vpfd, apfd);
if (child == -1) {
return 1;
}
if (aplay) {
oadp = create_decklink_output_adapter(card, 0, RawFrame::CbYCrY8422);
apipe = new Pipe<AudioPacket *>(16);
run_subshell("aplay -c 2 -r 48000 -f s16_le", aplay_pipe);
} else {
oadp = create_decklink_output_adapter_with_audio(card, 0,
RawFrame::CbYCrY8422);
apipe = oadp->audio_input_pipe( );
}
/* start video and audio sender threads */
Thread *video_th = new SenderThread<RawFrame, RawFrame1080Allocator>
(&(oadp->input_pipe( )), vpfd);
if (aplay) {
Thread *audio_th = new SenderThread<AudioPacket, NTSCSyncAudioAllocator>
(apipe, apfd);
Thread *audio_writer_thread = new WriterThread<AudioPacket>(apipe, aplay_pipe);
while (waitpid(child, NULL, 0) == EINTR) { /* busy wait */ }
delete audio_th;
delete audio_writer_thread;
} else {
Thread *audio_th = new SenderThread<AudioPacket, NTSCSyncAudioAllocator>
(apipe, apfd);
/* wait on child process */
while (waitpid(child, NULL, 0) == EINTR) { /* busy wait */ }
delete audio_th;
}
/* done! */
delete video_th;
}
