static GstFlowReturn
gst_timecodestamper_transform_ip (GstBaseTransform * vfilter,
GstBuffer * buffer)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (vfilter);
GstVideoTimeCodeMeta *tc_meta;
GstVideoTimeCode *tc;
GST_OBJECT_LOCK (timecodestamper);
tc_meta = gst_buffer_get_video_time_code_meta (buffer);
if (tc_meta && !timecodestamper->override_existing) {
GST_OBJECT_UNLOCK (timecodestamper);
tc = gst_video_time_code_copy (&tc_meta->tc);
goto beach;
} else if (timecodestamper->override_existing) {
gst_buffer_foreach_meta (buffer, remove_timecode_meta, NULL);
}
gst_buffer_add_video_time_code_meta (buffer, timecodestamper->current_tc);
tc = gst_video_time_code_copy (timecodestamper->current_tc);
gst_video_time_code_increment_frame (timecodestamper->current_tc);
GST_OBJECT_UNLOCK (timecodestamper);
beach:
if (timecodestamper->post_messages) {
GstClockTime stream_time, running_time, duration;
GstStructure *s;
GstMessage *msg;
running_time =
gst_segment_to_running_time (&vfilter->segment, GST_FORMAT_TIME,
GST_BUFFER_PTS (buffer));
stream_time =
gst_segment_to_stream_time (&vfilter->segment, GST_FORMAT_TIME,
GST_BUFFER_PTS (buffer));
duration =
gst_util_uint64_scale_int (GST_SECOND, timecodestamper->vinfo.fps_d,
timecodestamper->vinfo.fps_n);
s = gst_structure_new ("timecodestamper", "timestamp", G_TYPE_UINT64,
GST_BUFFER_PTS (buffer), "stream-time", G_TYPE_UINT64, stream_time,
"running-time", G_TYPE_UINT64, running_time, "duration", G_TYPE_UINT64,
duration, "timecode", GST_TYPE_VIDEO_TIME_CODE, tc, NULL);
msg = gst_message_new_element (GST_OBJECT (timecodestamper), s);
gst_element_post_message (GST_ELEMENT (timecodestamper), msg);
}
gst_video_time_code_free (tc);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
GstFlowReturn flow_ret = GST_FLOW_OK;
const guint8 *data;
gsize data_size;
VideoFrame *vf;
CaptureFrame *f;
GstCaps *caps;
gboolean caps_changed = FALSE;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_frames) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
}
f = (CaptureFrame *) g_queue_pop_head (&self->current_frames);
g_mutex_unlock (&self->lock);
if (self->flushing) {
if (f)
capture_frame_free (f);
GST_DEBUG_OBJECT (self, "Flushing");
return GST_FLOW_FLUSHING;
}
// If we're not flushing, we should have a valid frame from the queue
g_assert (f != NULL);
g_mutex_lock (&self->lock);
if (self->caps_mode != f->mode) {
if (self->mode == GST_DECKLINK_MODE_AUTO) {
GST_DEBUG_OBJECT (self, "Mode changed from %d to %d", self->caps_mode,
f->mode);
caps_changed = TRUE;
self->caps_mode = f->mode;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid mode in captured frame"),
("Mode set to %d but captured %d", self->caps_mode, f->mode));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
if (self->caps_format != f->format) {
if (self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO) {
GST_DEBUG_OBJECT (self, "Format changed from %d to %d", self->caps_format,
f->format);
caps_changed = TRUE;
self->caps_format = f->format;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid pixel format in captured frame"),
("Format set to %d but captured %d", self->caps_format, f->format));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
g_mutex_unlock (&self->lock);
if (caps_changed) {
caps = gst_decklink_mode_get_caps (f->mode, f->format);
gst_video_info_from_caps (&self->info, caps);
gst_base_src_set_caps (GST_BASE_SRC_CAST (bsrc), caps);
gst_element_post_message (GST_ELEMENT_CAST (self),
gst_message_new_latency (GST_OBJECT_CAST (self)));
gst_caps_unref (caps);
}
f->frame->GetBytes ((gpointer *) & data);
data_size = self->info.size;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
*buffer =
gst_buffer_new_wrapped_full ((GstMemoryFlags) GST_MEMORY_FLAG_READONLY,
(gpointer) data, data_size, 0, data_size, vf,
(GDestroyNotify) video_frame_free);
vf->frame = f->frame;
f->frame->AddRef ();
vf->input = self->input->input;
vf->input->AddRef ();
GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time;
GST_BUFFER_DURATION (*buffer) = f->capture_duration;
gst_buffer_add_video_time_code_meta (*buffer, f->tc);
GST_DEBUG_OBJECT (self,
"Outputting buffer %p with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, *buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*buffer)));
capture_frame_free (f);
return flow_ret;
}
static GstFlowReturn
gst_timecodestamper_transform_ip (GstBaseTransform * vfilter,
GstBuffer * buffer)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (vfilter);
GstClockTime ref_time;
GST_OBJECT_LOCK (timecodestamper);
if (gst_buffer_get_video_time_code_meta (buffer)
&& !timecodestamper->override_existing) {
GST_OBJECT_UNLOCK (timecodestamper);
return GST_FLOW_OK;
} else if (timecodestamper->override_existing) {
gst_buffer_foreach_meta (buffer, remove_timecode_meta, NULL);
}
if (timecodestamper->source_clock != NULL) {
if (timecodestamper->current_tc->hours == 0
&& timecodestamper->current_tc->minutes == 0
&& timecodestamper->current_tc->seconds == 0
&& timecodestamper->current_tc->frames == 0) {
guint64 hours, minutes, seconds, frames;
/* Daily jam time */
ref_time = gst_clock_get_time (timecodestamper->source_clock);
ref_time = ref_time % (24 * 60 * 60 * GST_SECOND);
hours = ref_time / (GST_SECOND * 60 * 60);
ref_time -= hours * GST_SECOND * 60 * 60;
minutes = ref_time / (GST_SECOND * 60);
ref_time -= minutes * GST_SECOND * 60;
seconds = ref_time / GST_SECOND;
ref_time -= seconds * GST_SECOND;
/* Converting to frames for the whole ref_time might be inaccurate in case
* we have a drop frame timecode */
frames = gst_util_uint64_scale (ref_time, timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d * GST_SECOND);
GST_DEBUG_OBJECT (timecodestamper,
"Initializing with %" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT ":%"
G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT "", hours, minutes, seconds,
frames);
gst_video_time_code_init (timecodestamper->current_tc,
timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d,
NULL,
timecodestamper->vinfo.interlace_mode ==
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE ? 0 :
GST_VIDEO_TIME_CODE_FLAGS_INTERLACED, hours, minutes, seconds, 0, 0);
gst_timecodestamper_set_drop_frame (timecodestamper);
/* Do not use frames when initializing because maybe we have drop frame */
gst_video_time_code_add_frames (timecodestamper->current_tc, frames);
}
} else if (timecodestamper->source_clock == NULL) {
GstClockTime timecode_time;
timecode_time =
gst_video_time_code_nsec_since_daily_jam (timecodestamper->current_tc);
ref_time =
gst_segment_to_stream_time (&vfilter->segment, GST_FORMAT_TIME,
buffer->pts);
if (timecode_time != GST_CLOCK_TIME_NONE && ref_time != GST_CLOCK_TIME_NONE
&& ((timecode_time > ref_time && timecode_time - ref_time > GST_SECOND)
|| (ref_time > timecode_time
&& ref_time - timecode_time > GST_SECOND))) {
gchar *tc_str =
gst_video_time_code_to_string (timecodestamper->current_tc);
GST_WARNING_OBJECT (timecodestamper,
"Time code %s (stream time %" GST_TIME_FORMAT
") has drifted more than one second from stream time %"
GST_TIME_FORMAT, tc_str, GST_TIME_ARGS (timecode_time),
GST_TIME_ARGS (ref_time));
g_free (tc_str);
}
}
gst_buffer_add_video_time_code_meta (buffer, timecodestamper->current_tc);
gst_video_time_code_increment_frame (timecodestamper->current_tc);
GST_OBJECT_UNLOCK (timecodestamper);
return GST_FLOW_OK;
}
