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_timecodewait_vsink_chain (GstPad * pad, GstObject * parent,
GstBuffer * inbuf)
{
GstClockTime timestamp;
GstTimeCodeWait *self = GST_TIMECODEWAIT (parent);
GstClockTime duration;
GstVideoTimeCode *tc = NULL;
GstVideoTimeCodeMeta *tc_meta;
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
if (timestamp == GST_CLOCK_TIME_NONE) {
gst_buffer_unref (inbuf);
return GST_FLOW_ERROR;
}
g_mutex_lock (&self->mutex);
self->vsegment.position = timestamp;
duration = GST_BUFFER_DURATION (inbuf);
if (duration != GST_CLOCK_TIME_NONE)
self->vsegment.position += duration;
tc_meta = gst_buffer_get_video_time_code_meta (inbuf);
if (tc_meta)
tc = &tc_meta->tc;
if (self->tc != NULL && tc != NULL) {
if (gst_video_time_code_compare (tc, self->tc) < 0
&& self->running_time_of_timecode == GST_CLOCK_TIME_NONE) {
GST_DEBUG_OBJECT (self, "Timecode not yet reached, ignoring frame");
gst_buffer_unref (inbuf);
inbuf = NULL;
} else if (self->running_time_of_timecode == GST_CLOCK_TIME_NONE) {
GST_INFO_OBJECT (self, "Target timecode reached at %" GST_TIME_FORMAT,
GST_TIME_ARGS (self->vsegment.position));
self->running_time_of_timecode =
gst_segment_to_running_time (&self->vsegment, GST_FORMAT_TIME,
self->vsegment.position);
}
}
g_cond_signal (&self->cond);
g_mutex_unlock (&self->mutex);
if (inbuf)
return gst_pad_push (self->vsrcpad, inbuf);
else
return GST_FLOW_OK;
}
static GstFlowReturn
gst_decklink_video_sink_prepare (GstBaseSink * bsink, GstBuffer * buffer)
{
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
GstVideoFrame vframe;
IDeckLinkMutableVideoFrame *frame;
guint8 *outdata, *indata;
GstFlowReturn flow_ret;
HRESULT ret;
GstClockTime timestamp, duration;
GstClockTime running_time, running_time_duration;
GstClockTime latency, render_delay;
GstClockTimeDiff ts_offset;
gint i;
GstDecklinkVideoFormat caps_format;
BMDPixelFormat format;
gint bpp;
GstVideoTimeCodeMeta *tc_meta;
GST_DEBUG_OBJECT (self, "Preparing buffer %p", buffer);
// FIXME: Handle no timestamps
if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
return GST_FLOW_ERROR;
}
caps_format = gst_decklink_type_from_video_format (self->info.finfo->format);
format = gst_decklink_pixel_format_from_type (caps_format);
bpp = gst_decklink_bpp_from_type (caps_format);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
if (duration == GST_CLOCK_TIME_NONE) {
duration =
gst_util_uint64_scale_int (GST_SECOND, self->info.fps_d,
self->info.fps_n);
}
running_time =
gst_segment_to_running_time (&GST_BASE_SINK_CAST (self)->segment,
GST_FORMAT_TIME, timestamp);
running_time_duration =
gst_segment_to_running_time (&GST_BASE_SINK_CAST (self)->segment,
GST_FORMAT_TIME, timestamp + duration) - running_time;
/* See gst_base_sink_adjust_time() */
latency = gst_base_sink_get_latency (bsink);
render_delay = gst_base_sink_get_render_delay (bsink);
ts_offset = gst_base_sink_get_ts_offset (bsink);
running_time += latency;
if (ts_offset < 0) {
ts_offset = -ts_offset;
if ((GstClockTime) ts_offset < running_time)
running_time -= ts_offset;
else
running_time = 0;
} else {
running_time += ts_offset;
}
if (running_time > render_delay)
running_time -= render_delay;
else
running_time = 0;
ret = self->output->output->CreateVideoFrame (self->info.width,
self->info.height, self->info.stride[0], format, bmdFrameFlagDefault,
&frame);
if (ret != S_OK) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
(NULL), ("Failed to create video frame: 0x%08x", ret));
return GST_FLOW_ERROR;
}
if (!gst_video_frame_map (&vframe, &self->info, buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Failed to map video frame");
flow_ret = GST_FLOW_ERROR;
goto out;
}
frame->GetBytes ((void **) &outdata);
indata = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0);
for (i = 0; i < self->info.height; i++) {
memcpy (outdata, indata, GST_VIDEO_FRAME_WIDTH (&vframe) * bpp);
indata += GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
outdata += frame->GetRowBytes ();
}
gst_video_frame_unmap (&vframe);
tc_meta = gst_buffer_get_video_time_code_meta (buffer);
if (tc_meta) {
BMDTimecodeFlags bflags = (BMDTimecodeFlags) 0;
gchar *tc_str;
if (((GstVideoTimeCodeFlags) (tc_meta->tc.
config.flags)) & GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME)
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeIsDropFrame);
else
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeFlagDefault);
if (tc_meta->tc.field_count == 2)
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeFieldMark);
tc_str = gst_video_time_code_to_string (&tc_meta->tc);
ret = frame->SetTimecodeFromComponents (self->timecode_format,
(uint8_t) tc_meta->tc.hours,
(uint8_t) tc_meta->tc.minutes,
(uint8_t) tc_meta->tc.seconds, (uint8_t) tc_meta->tc.frames, bflags);
if (ret != S_OK) {
GST_ERROR_OBJECT (self,
"Failed to set timecode %s to video frame: 0x%08x", tc_str, ret);
flow_ret = GST_FLOW_ERROR;
g_free (tc_str);
goto out;
}
GST_DEBUG_OBJECT (self, "Set frame timecode to %s", tc_str);
g_free (tc_str);
}
convert_to_internal_clock (self, &running_time, &running_time_duration);
GST_LOG_OBJECT (self, "Scheduling video frame %p at %" GST_TIME_FORMAT
" with duration %" GST_TIME_FORMAT, frame, GST_TIME_ARGS (running_time),
GST_TIME_ARGS (running_time_duration));
ret = self->output->output->ScheduleVideoFrame (frame,
running_time, running_time_duration, GST_SECOND);
if (ret != S_OK) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
(NULL), ("Failed to schedule frame: 0x%08x", ret));
flow_ret = GST_FLOW_ERROR;
goto out;
}
flow_ret = GST_FLOW_OK;
out:
frame->Release ();
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;
}
/* Called with lock held */
static gchar *
gst_time_overlay_get_text (GstBaseTextOverlay * overlay,
GstBuffer * video_frame)
{
GstTimeOverlayTimeLine time_line;
gchar *time_str, *txt, *ret;
overlay->need_render = TRUE;
time_line = g_atomic_int_get (&GST_TIME_OVERLAY_CAST (overlay)->time_line);
if (time_line == GST_TIME_OVERLAY_TIME_LINE_TIME_CODE) {
GstVideoTimeCodeMeta *tc_meta =
gst_buffer_get_video_time_code_meta (video_frame);
if (!tc_meta) {
GST_DEBUG ("buffer without valid timecode");
return g_strdup ("00:00:00:00");
}
time_str = gst_video_time_code_to_string (&tc_meta->tc);
GST_DEBUG ("buffer with timecode %s", time_str);
} else {
GstClockTime ts, ts_buffer;
GstSegment *segment = &overlay->segment;
ts_buffer = GST_BUFFER_TIMESTAMP (video_frame);
if (!GST_CLOCK_TIME_IS_VALID (ts_buffer)) {
GST_DEBUG ("buffer without valid timestamp");
return g_strdup ("");
}
GST_DEBUG ("buffer with timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (ts_buffer));
switch (time_line) {
case GST_TIME_OVERLAY_TIME_LINE_STREAM_TIME:
ts = gst_segment_to_stream_time (segment, GST_FORMAT_TIME, ts_buffer);
break;
case GST_TIME_OVERLAY_TIME_LINE_RUNNING_TIME:
ts = gst_segment_to_running_time (segment, GST_FORMAT_TIME, ts_buffer);
break;
case GST_TIME_OVERLAY_TIME_LINE_BUFFER_TIME:
default:
ts = ts_buffer;
break;
}
time_str = gst_time_overlay_render_time (GST_TIME_OVERLAY (overlay), ts);
}
txt = g_strdup (overlay->default_text);
if (txt != NULL && *txt != '\0') {
ret = g_strdup_printf ("%s %s", txt, time_str);
} else {
ret = time_str;
time_str = NULL;
}
g_free (txt);
g_free (time_str);
return ret;
}
