#include <QApplication>
#include <QEvent>
+#include <QDir>
#include <stdlib.h>
#include <stdio.h>
#define JOG_STOP 10020
#define MAX_SHUTTLE_RANGE 7
-void ShuttleThread::init(QObject *parent, QString device)
+void ShuttleThread::init(QObject *parent, const QString &device)
{
m_parent = parent;
m_device = device;
void ShuttleThread::run()
{
kDebug() << "------- STARTING SHUTTLE: " << m_device;
- /* open file descriptor */
- const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY);
- if (fd < 0) {
- perror("Can't open Jog Shuttle FILE DESCRIPTOR");
- return;
- }
+ struct media_ctrl mc;
- EV ev;
+ // open device
+ media_ctrl_open2(&mc, m_device.toUtf8().data());
- if (ioctl(fd, EVIOCGRAB, 1) < 0) {
- fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n");
- close(fd);
- return;
- }
+ // on failure return
+ if (mc.fd < 0) {
+ perror("Can't open Jog Shuttle FILE DESCRIPTOR");
+ return;
+ }
- fd_set readset;
+ // init
+ int result;
+ fd_set readset;
struct timeval timeout;
- int num_warnings = 0;
- int result, iof = -1;
-
/* enter thread loop */
while (!stop_me) {
/* reset the read set */
FD_ZERO(&readset);
- FD_SET(fd, &readset);
+ FD_SET(mc.fd, &readset);
- /* reinit the timeout structure */
+ // reinit the timeout structure
timeout.tv_sec = 0;
timeout.tv_usec = 400000; /* 400 ms */
- /* do select in blocked mode and wake up after timeout for eval stop_me */
- result = select(fd+1, &readset, NULL, NULL, &timeout);
+ // do select in blocked mode and wake up after timeout
+ // for stop_me evaluation
+ result = select(mc.fd + 1, &readset, NULL, NULL, &timeout);
/* see if there was an error or timeout else process event */
- if (result < 0) {
- /* usually this is a condition for exit but EINTR error is sometimes
- * thrown under special circumstances. I think its ok to ignore this
- * if its not too often */
+ if (result < 0 && errno == EINTR) {
+ // EINTR event catched. This is not a problem - continue processing
kDebug() << strerror(errno) << "\n";
- } else if (result == 0) {
- /* do nothing. reserved for future purposes */
- } else {
- /* we have input */
- if (FD_ISSET(fd, &readset)) {
- /* get fd settings */
- if ((iof = fcntl(fd, F_GETFL, 0)) != -1) {
- /* set fd non blocking */
- fcntl(fd, F_SETFL, iof | O_NONBLOCK);
- /* read input */
- if (read(fd, &ev, sizeof(ev)) < 0) {
- if (num_warnings % 10000 == 0) {
- /* if device is not available anymore - dead or disconnected */
- fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1);
- }
- /* exit if device is not available or the error occurs to long */
- if (errno == ENODEV) {
- perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Stop thread");
- /* stop thread */
- stop_me = true;
- } else if (num_warnings > 1000000) {
- perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Limit reached. Stop thread");
- /* stop thread */
- stop_me = true;
- }
- num_warnings++;
- }
- /* restore settings */
- if (iof != -1) {
- fcntl(fd, F_SETFL, iof);
- }
- /* process event */
- handle_event(ev);
- } else {
- fprintf(stderr, "Can't set Jog Shuttle FILE DESCRIPTOR to O_NONBLOCK and stop thread\n");
- stop_me = true;
- }
+ // continue processing
+ continue;
+ } else if (result < 0) {
+ /* stop thread */
+ stop_me = true;
+ kDebug() << strerror(errno) << "\n";
+ } else if (result > 0) {
+ // we have input
+ if (FD_ISSET(mc.fd, &readset)) {
+ struct media_ctrl_event mev;
+ mev.type = MEDIA_CTRL_EVENT_NONE;
+ // read input
+ media_ctrl_read_event(&mc, &mev);
+ // process event
+ handle_event(mev);
}
+ } else if (result == 0) {
+ // on timeout. let it here for debug
}
}
+ kDebug() << "------- STOPPING SHUTTLE: ";
/* close the handle and return thread */
- close(fd);
+ media_ctrl_close(&mc);
+}
+
+void ShuttleThread::handle_event(const struct media_ctrl_event& ev)
+{
+ if (ev.type == MEDIA_CTRL_EVENT_KEY)
+ key(ev);
+ else if (ev.type == MEDIA_CTRL_EVENT_JOG)
+ jog(ev);
+ else if (ev.type == MEDIA_CTRL_EVENT_SHUTTLE)
+ shuttle(ev);
+}
+
+void ShuttleThread::key(const struct media_ctrl_event& ev)
+{
+ if (ev.value == KEY_PRESS) {
+ int code = ev.index + 1;
+ QApplication::postEvent(m_parent,
+ new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code)));
+ }
+}
+
+void ShuttleThread::shuttle(const struct media_ctrl_event& ev)
+{
+ int value = ev.value / 2;
+
+ if (value > MAX_SHUTTLE_RANGE || value < -MAX_SHUTTLE_RANGE) {
+ kDebug() << "Jog shuttle value is out of range: " << MAX_SHUTTLE_RANGE;
+ return;
+ }
+
+ QApplication::postEvent(m_parent,
+ new QEvent((QEvent::Type) (JOG_STOP + (value))));
+}
+
+void ShuttleThread::jog(const struct media_ctrl_event& ev)
+{
+ if (ev.value < 0)
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1));
+ else if (ev.value > 0)
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1));
}
+#ifdef USE_DEPRECATED
void ShuttleThread::handle_event(EV ev)
{
switch (ev.type) {
jogvalue = value;
if (shuttlecounter > 0) shuttlecounter++;
}
+#endif // USE_DEPRECATED
-
-JogShuttle::JogShuttle(QString device, QObject *parent) :
+JogShuttle::JogShuttle(const QString &device, QObject *parent) :
QObject(parent)
{
initDevice(device);
stopDevice();
}
-void JogShuttle::initDevice(QString device)
+void JogShuttle::initDevice(const QString &device)
{
if (m_shuttleProcess.isRunning()) {
- if (device == m_shuttleProcess.m_device) return;
+ if (device == m_shuttleProcess.m_device)
+ return;
+
stopDevice();
}
+
m_shuttleProcess.init(this, device);
m_shuttleProcess.start(QThread::LowestPriority);
}
{
int code = e->type();
- // Handle simple job events
+ // handle simple job events
switch (code) {
- case JOG_BACK1:
- emit jogBack();
- return;
- case JOG_FWD1:
- emit jogForward();
- return;
+ case JOG_BACK1:
+ emit jogBack();
+ return;
+ case JOG_FWD1:
+ emit jogForward();
+ return;
}
+ // FIXME: this is a bad shuttle indication
int shuttle_pos = code - JOG_STOP;
if (shuttle_pos >= -MAX_SHUTTLE_RANGE && shuttle_pos <= MAX_SHUTTLE_RANGE) {
emit shuttlePos(shuttle_pos);
}
// we've got a key event.
- //fprintf(stderr, "Firing button event for #%d\n", e->type() - KEY_EVENT_OFFSET); // DBG
emit button(e->type() - KEY_EVENT_OFFSET);
}
+QString JogShuttle::canonicalDevice(const QString& device)
+{
+ return QDir(device).canonicalPath();
+}
+
+DeviceMap JogShuttle::enumerateDevices(const QString& devPath)
+{
+ DeviceMap devs;
+ QDir devDir(devPath);
+
+ if (!devDir.exists()) {
+ return devs;
+ }
+
+ QStringList fileList = devDir.entryList(QDir::System | QDir::Files);
+ foreach (const QString &fileName, fileList) {
+ QString devFullPath = devDir.absoluteFilePath(fileName);
+ QString fileLink = JogShuttle::canonicalDevice(devFullPath);
+ kDebug() << QString(" [%1] ").arg(fileName);
+ kDebug() << QString(" [%1] ").arg(fileLink);
+
+ struct media_ctrl mc;
+ media_ctrl_open2(&mc, (char*)fileLink.toUtf8().data());
+ if (mc.fd > 0 && mc.device) {
+ devs.insert(QString(mc.device->name), devFullPath);
+ kDebug() << QString(" [keys-count=%1] ").arg(
+ media_ctrl_get_keys_count(&mc));
+ }
+ media_ctrl_close(&mc);
+ }
+
+ return devs;
+}
+
+int JogShuttle::keysCount(const QString& devPath)
+{
+ struct media_ctrl mc;
+ int keysCount = 0;
+
+ QString fileLink = canonicalDevice(devPath);
+ media_ctrl_open2(&mc, (char*)fileLink.toUtf8().data());
+ if (mc.fd > 0 && mc.device) {
+ keysCount = media_ctrl_get_keys_count(&mc);
+ }
+ return keysCount;
+}
// #include "jogshuttle.moc"
+
+#include "jogshuttle.moc"
projects / kdenlive / blobdiff