#include <QApplication>
#include <QEvent>
+#include <QDir>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
#include <linux/input.h>
#define DELAY 10
// Constants for the signals sent.
#define JOG_BACK1 10001
#define JOG_FWD1 10002
+#define KEY_EVENT_OFFSET 20000
// middle value for shuttle, will be +/-MAX_SHUTTLE_RANGE
-#define JOG_STOP 10010
+#define JOG_STOP 10020
#define MAX_SHUTTLE_RANGE 7
-// TODO(fleury): this should probably be a user configuration parameter (at least the max speed).
-const double SPEEDS[MAX_SHUTTLE_RANGE + 1] = {0.0, 0.5, 1.0, 2.0, 4.0, 8.0, 16.0, 32.0};
-
-
-void ShuttleThread::init(QObject *parent, QString device)
+void ShuttleThread::init(QObject *parent, const QString &device)
{
m_parent = parent;
m_device = device;
stop_me = false;
m_isWorking = false;
shuttlevalue = 0xffff;
- shuttlechange = false;
+ shuttlecounter = 0;
jogvalue = 0xffff;
}
void ShuttleThread::run()
{
- kDebug() << "------- STARTING SHUTTLE: " << m_device;
+ kDebug() << "------- STARTING SHUTTLE: " << m_device;
+ struct media_ctrl mc;
+
+ // open device
+ media_ctrl_open2(&mc, m_device.toUtf8().data());
- const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "Can't open Jog Shuttle FILE DESCRIPTOR\n");
- return;;
+ // on failure return
+ if (mc.fd < 0) {
+ perror("Can't open Jog Shuttle FILE DESCRIPTOR");
+ return;
}
- EV ev;
- if (ioctl(fd, EVIOCGRAB, 1) < 0) {
- fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n");
- return;;
+ // init
+ int result;
+ fd_set readset;
+ struct timeval timeout;
+
+ /* enter thread loop */
+ while (!stop_me) {
+ /* reset the read set */
+ FD_ZERO(&readset);
+ FD_SET(mc.fd, &readset);
+
+ // 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 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 && errno == EINTR) {
+ // EINTR event catched. This is not a problem - continue processing
+ kDebug() << strerror(errno) << "\n";
+ // 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 */
+ 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)));
}
+}
- int num_warnings = 0;
- while (!stop_me) {
- if (read(fd, &ev, sizeof(ev)) < 0) {
- if (num_warnings % 100 == 0)
- fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1);
- num_warnings++;
- }
- handle_event(ev);
+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;
}
- close(fd);
+ 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) {
if (code > 16)
return;
- kDebug() << "Button PRESSED: " << code;
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(20000 + code)));
+ //kDebug() << "Button PRESSED: " << code;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code)));
}
//gettimeofday( &last_shuttle, 0 );
//need_synthetic_shuttle = value != 0;
- if (value == shuttlevalue)
+ if (value == shuttlevalue) {
+ shuttlecounter = 1;
return;
+ }
if (value > MAX_SHUTTLE_RANGE || value < -MAX_SHUTTLE_RANGE) {
fprintf(stderr, "Jog Shuttle returned value of %d (should be between -%d ad +%d)", value, MAX_SHUTTLE_RANGE, MAX_SHUTTLE_RANGE);
return;
}
shuttlevalue = value;
- shuttlechange = true;
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(JOG_STOP + value)));
+ shuttlecounter = 1;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) (JOG_STOP + value)));
}
void ShuttleThread::jog(unsigned int value)
QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1));
else if ((forward && !wrap) || (rewind && wrap))
QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1));
- else if (!forward && !rewind && !shuttlechange)
+ else if (!forward && !rewind && shuttlecounter > 2) {
// An event without changing the jog value is sent after each shuttle change.
// As the shuttle rest position does not get a shuttle event, only a non-position-changing jog event.
// Hence we stop on this when we see 2 non-position-changing jog events in a row.
+ shuttlecounter = 0;
QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP));
+ }
}
jogvalue = value;
- shuttlechange = false;
+ if (shuttlecounter > 0) shuttlecounter++;
}
+#endif // USE_DEPRECATED
-
-JogShuttle::JogShuttle(QString device, QObject *parent) :
+JogShuttle::JogShuttle(const QString &device, QObject *parent) :
QObject(parent)
{
initDevice(device);
JogShuttle::~JogShuttle()
{
- if (m_shuttleProcess.isRunning()) m_shuttleProcess.exit();
+ 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);
}
void JogShuttle::stopDevice()
{
- if (m_shuttleProcess.isRunning())
+ if (m_shuttleProcess.isRunning()) {
+ /* tell thread to stop */
m_shuttleProcess.stop_me = true;
+ m_shuttleProcess.exit();
+ /* give the thread some time (ms) to shutdown */
+ m_shuttleProcess.wait(600);
+
+ /* if still running - do it in the hardcore way */
+ if (m_shuttleProcess.isRunning()) {
+ m_shuttleProcess.terminate();
+ kDebug() << "/// terminate jogshuttle process\n";
+ }
+ }
}
void JogShuttle::customEvent(QEvent* e)
{
int code = e->type();
- // Handle the job events
- if (code == JOG_BACK1) {
- emit rewind1();
- return;
+ // handle simple job events
+ switch (code) {
+ case JOG_BACK1:
+ emit jogBack();
+ return;
+ case JOG_FWD1:
+ emit jogForward();
+ return;
}
- if (code == JOG_FWD1) {
- emit forward1();
+
+ // 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);
return;
}
- //handle the shuttle events
- if (code == JOG_STOP) {
- // TODO(fleury): to make sure stop() has an effect, as it doesn't when in rewind mode, we set it to forward with
- // a value that will for sure not move to the next frame.
- if (m_shuttleProcess.shuttlevalue < 0)
- emit forward(0.01);
- emit stop();
- return;
+ // we've got a key event.
+ 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;
}
- int shuttle = code - JOG_STOP;
- if (shuttle >= -MAX_SHUTTLE_RANGE && shuttle <= MAX_SHUTTLE_RANGE) {
- if (shuttle < 0)
- emit rewind(-SPEEDS[abs(shuttle)]);
- else
- emit forward(SPEEDS[abs(shuttle)]);
- return;
+ 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);
}
- // we've got a key event.
- emit button(e->type() - 20000);
+ 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