static void
dxr3videosink_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
Dxr3VideoSink *sink;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
sink = DXR3VIDEOSINK (gst_pad_get_parent (pad));
if (GST_IS_EVENT (buf)) {
dxr3videosink_handle_event (pad, GST_EVENT (buf));
return;
}
/* fprintf (stderr, "^^^^^^ Video block\n"); */
if (sink->cur_buf == NULL) {
sink->cur_buf = buf;
} else {
sink->cur_buf = gst_buffer_append (sink->cur_buf, buf);
}
sink->last_ts = GST_BUFFER_TIMESTAMP (buf);
dxr3videosink_parse_data (sink);
}
static void
dxr3videosink_set_clock (GstElement * element, GstClock * clock)
{
Dxr3VideoSink *src = DXR3VIDEOSINK (element);
src->clock = clock;
}
static gboolean
dxr3videosink_set_clock (GstElement * element, GstClock * clock)
{
Dxr3VideoSink *src = DXR3VIDEOSINK (element);
src->clock = clock;
return GST_ELEMENT_CLASS (parent_class)->set_clock (element, clock);
}
static void
dxr3videosink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
Dxr3VideoSink *sink;
sink = DXR3VIDEOSINK (object);
switch (prop_id) {
default:
break;
}
}
static void
dxr3videosink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
Dxr3VideoSink *sink;
g_return_if_fail (GST_IS_DXR3VIDEOSINK (object));
sink = DXR3VIDEOSINK (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
dxr3videosink_change_state (GstElement * element, GstStateChange transition)
{
g_return_val_if_fail (GST_IS_DXR3VIDEOSINK (element),
GST_STATE_CHANGE_FAILURE);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!GST_OBJECT_FLAG_IS_SET (element, DXR3VIDEOSINK_OPEN)) {
if (!dxr3videosink_open (DXR3VIDEOSINK (element))) {
return GST_STATE_CHANGE_FAILURE;
}
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_PAUSE);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_START);
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_PAUSE);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_STOP);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
if (GST_OBJECT_FLAG_IS_SET (element, DXR3VIDEOSINK_OPEN)) {
dxr3videosink_close (DXR3VIDEOSINK (element));
}
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
}
return GST_STATE_CHANGE_SUCCESS;
}
static gboolean
dxr3videosink_handle_event (GstPad * pad, GstEvent * event)
{
GstEventType type;
Dxr3VideoSink *sink;
sink = DXR3VIDEOSINK (gst_pad_get_parent (pad));
type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
switch (type) {
case GST_EVENT_EMPTY:
//fprintf (stderr, "++++++ Video empty event\n");
{
/* FIXME: Handle this with a discontinuity or something. */
/* Write an MPEG2 sequence end code, to ensure that the card
actually displays the last picture. Apparently some DVDs are
encoded without proper sequence end codes. */
static const guint8 sec[4] = { 0x00, 0x00, 0x01, 0xb7 };
if (sink->cur_buf != NULL) {
dxr3videosink_write_data (sink, 0);
}
write (sink->video_fd, &sec, 4);
}
break;
case GST_EVENT_DISCONTINUOUS:
//fprintf (stderr, "++++++ Video discont event\n");
{
gint64 time;
gboolean has_time;
unsigned cur_scr, mpeg_scr, diff;
has_time = gst_event_discont_get_value (event, GST_FORMAT_TIME, &time);
if (has_time) {
/* fprintf (stderr, "^^^^^^ Discontinuous event has time %.4f\n", */
/* (double) time / GST_SECOND); */
/* If the SCR in the card is way off, fix it. */
ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &cur_scr);
mpeg_scr = MPEGTIME_TO_DXRTIME (GSTTIME_TO_MPEGTIME (time));
diff = cur_scr > mpeg_scr ? cur_scr - mpeg_scr : mpeg_scr - cur_scr;
if (diff > 1800) {
unsigned zero = 0;
/* fprintf (stderr, "====== Adjusting SCR from video\n"); */
ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &zero);
ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &mpeg_scr);
}
} else {
/* fprintf (stderr, "^^^^^^ Discontinuous event has no time\n"); */
}
}
break;
case GST_EVENT_FLUSH:
dxr3videosink_reset_parser (sink);
break;
default:
gst_pad_event_default (pad, event);
break;
}
return TRUE;
}
