diff options
| -rw-r--r-- | sys/decklink/gstdecklinkvideosrc.cpp | 18 | ||||
| -rw-r--r-- | sys/decklink/gstdecklinkvideosrc.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/sys/decklink/gstdecklinkvideosrc.cpp b/sys/decklink/gstdecklinkvideosrc.cpp index 0e8103406..059487d12 100644 --- a/sys/decklink/gstdecklinkvideosrc.cpp +++ b/sys/decklink/gstdecklinkvideosrc.cpp @@ -203,6 +203,7 @@ gst_decklink_video_src_init (GstDecklinkVideoSrc * self) self->buffer_size = DEFAULT_BUFFER_SIZE; self->video_format = GST_DECKLINK_VIDEO_FORMAT_AUTO; self->timecode_format = bmdTimecodeRP188Any; + self->no_signal = FALSE; gst_base_src_set_live (GST_BASE_SRC (self), TRUE); gst_base_src_set_format (GST_BASE_SRC (self), GST_FORMAT_TIME); @@ -579,6 +580,7 @@ gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer) CaptureFrame *f; GstCaps *caps; gboolean caps_changed = FALSE; + BMDFrameFlags flags; g_mutex_lock (&self->lock); while (g_queue_is_empty (&self->current_frames) && !self->flushing) { @@ -655,6 +657,21 @@ gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer) vf->input = self->input->input; vf->input->AddRef (); + flags = f->frame->GetFlags(); + if (flags & bmdFrameHasNoInputSource) { + if (!self->no_signal) { + self->no_signal = TRUE; + GST_ELEMENT_WARNING (GST_ELEMENT (self), RESOURCE, READ, ("No signal"), + ("No input source was detected - video frames invalid")); + } + } else { + if (self->no_signal) { + self->no_signal = FALSE; + GST_ELEMENT_INFO (GST_ELEMENT (self), RESOURCE, READ, ("Signal found"), + ("Input source detected")); + } + } + GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time; GST_BUFFER_DURATION (*buffer) = f->capture_duration; gst_buffer_add_video_time_code_meta (*buffer, f->tc); @@ -926,6 +943,7 @@ gst_decklink_video_src_change_state (GstElement * element, self->input->clock_epoch += self->input->clock_last_time; self->input->clock_last_time = 0; self->input->clock_offset = 0; + self->no_signal = FALSE; g_mutex_unlock (&self->input->lock); gst_decklink_video_src_stop (self); diff --git a/sys/decklink/gstdecklinkvideosrc.h b/sys/decklink/gstdecklinkvideosrc.h index b1e7351cc..8c7f38a42 100644 --- a/sys/decklink/gstdecklinkvideosrc.h +++ b/sys/decklink/gstdecklinkvideosrc.h @@ -66,6 +66,7 @@ struct _GstDecklinkVideoSrc GMutex lock; gboolean flushing; GQueue current_frames; + gboolean no_signal; guint buffer_size; |