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Code Issues 1 Projects Releases Wiki Activity

decklinksrc: Set GAP flag on buffers that are captured without signal

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=774850
This commit is contained in:
Sebastian Dröge 2016-11-25 14:36:37 +02:00
parent 09dd64bb4f
commit cf224a9990
4 changed files with 27 additions and 11 deletions
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18
sys/decklink/gstdecklink.cpp
View file

@ -723,13 +723,14 @@ public:
IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode,
GstClockTime capture_time, GstClockTime stream_time,
GstClockTime stream_duration, guint hours, guint minutes, guint seconds,
guint frames, BMDTimecodeFlags bflags) = NULL;
guint frames, BMDTimecodeFlags bflags, gboolean no_signal) = NULL;
void (*got_audio_packet) (GstElement * videosrc,
IDeckLinkAudioInputPacket * packet, GstClockTime capture_time,
GstClockTime packet_time) = NULL;
GstClockTime packet_time, gboolean no_signal) = NULL;
GstDecklinkModeEnum mode;
GstClockTime capture_time = GST_CLOCK_TIME_NONE;
GstClockTime base_time;
gboolean no_signal = FALSE;
GstClock *clock = NULL;
HRESULT res;
@ -760,6 +761,15 @@ public:
capture_time = 0;
}
if (video_frame) {
BMDFrameFlags flags;
flags = video_frame->GetFlags ();
if (flags & bmdFrameHasNoInputSource) {
no_signal = TRUE;
}
}
if (got_video_frame && videosrc && video_frame) {
BMDTimeValue stream_time = GST_CLOCK_TIME_NONE;
BMDTimeValue stream_duration = GST_CLOCK_TIME_NONE;
@ -809,7 +819,7 @@ public:
got_video_frame (videosrc, video_frame, mode, capture_time,
stream_time, stream_duration, (guint8) hours, (guint8) minutes,
(guint8) seconds, (guint8) frames, bflags);
(guint8) seconds, (guint8) frames, bflags, no_signal);
}
if (got_audio_packet && audiosrc && audio_packet) {
@ -821,7 +831,7 @@ public:
packet_time = GST_CLOCK_TIME_NONE;
}
m_input->got_audio_packet (audiosrc, audio_packet, capture_time,
packet_time);
packet_time, no_signal);
} else {
if (!audio_packet)
GST_DEBUG ("Received no audio packet at %" GST_TIME_FORMAT,

4
sys/decklink/gstdecklink.h
View file

@ -201,13 +201,13 @@ struct _GstDecklinkInput {
GMutex lock;
/* Set by the video source */
void (*got_video_frame) (GstElement *videosrc, IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode, GstClockTime capture_time, GstClockTime stream_time, GstClockTime stream_duration, guint hours, guint minutes, guint seconds, guint frames, BMDTimecodeFlags bflags);
void (*got_video_frame) (GstElement *videosrc, IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode, GstClockTime capture_time, GstClockTime stream_time, GstClockTime stream_duration, guint hours, guint minutes, guint seconds, guint frames, BMDTimecodeFlags bflags, gboolean no_signal);
/* Configured mode or NULL */
const GstDecklinkMode *mode;
BMDPixelFormat format;
/* Set by the audio source */
void (*got_audio_packet) (GstElement *videosrc, IDeckLinkAudioInputPacket * packet, GstClockTime capture_time, GstClockTime packet_time);
void (*got_audio_packet) (GstElement *videosrc, IDeckLinkAudioInputPacket * packet, GstClockTime capture_time, GstClockTime packet_time, gboolean no_signal);
GstElement *audiosrc;
gboolean audio_enabled;

6
sys/decklink/gstdecklinkaudiosrc.cpp
View file

@ -57,6 +57,7 @@ typedef struct
{
IDeckLinkAudioInputPacket *packet;
GstClockTime timestamp;
gboolean no_signal;
} CapturePacket;
static void
@ -421,7 +422,7 @@ gst_decklink_audio_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
static void
gst_decklink_audio_src_got_packet (GstElement * element,
IDeckLinkAudioInputPacket * packet, GstClockTime capture_time,
GstClockTime packet_time)
GstClockTime packet_time, gboolean no_signal)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (element);
GstClockTime timestamp;
@ -464,6 +465,7 @@ gst_decklink_audio_src_got_packet (GstElement * element,
p = (CapturePacket *) g_malloc0 (sizeof (CapturePacket));
p->packet = packet;
p->timestamp = timestamp;
p->no_signal = no_signal;
packet->AddRef ();
g_queue_push_tail (&self->current_packets, p);
g_cond_signal (&self->cond);
@ -594,6 +596,8 @@ retry:
self->info.rate) - timestamp;
}
if (p->no_signal)
GST_BUFFER_FLAG_SET (*buffer, GST_BUFFER_FLAG_GAP);
GST_BUFFER_TIMESTAMP (*buffer) = timestamp;
GST_BUFFER_DURATION (*buffer) = duration;

10
sys/decklink/gstdecklinkvideosrc.cpp
View file

@ -53,6 +53,7 @@ typedef struct
GstDecklinkModeEnum mode;
BMDPixelFormat format;
GstVideoTimeCode *tc;
gboolean no_signal;
} CaptureFrame;
static void
@ -571,7 +572,7 @@ gst_decklink_video_src_got_frame (GstElement * element,
IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode,
GstClockTime capture_time, GstClockTime stream_time,
GstClockTime stream_duration, guint hours, guint minutes, guint seconds,
guint frames, BMDTimecodeFlags bflags)
guint frames, BMDTimecodeFlags bflags, gboolean no_signal)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (element);
GstClockTime timestamp, duration;
@ -620,6 +621,7 @@ gst_decklink_video_src_got_frame (GstElement * element,
f->duration = duration;
f->mode = mode;
f->format = frame->GetPixelFormat ();
f->no_signal = no_signal;
bmode = gst_decklink_get_mode (mode);
if (bmode->interlaced) {
flags =
@ -656,7 +658,6 @@ 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) {
@ -733,8 +734,7 @@ 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 (f->no_signal) {
if (!self->no_signal) {
self->no_signal = TRUE;
GST_ELEMENT_WARNING (GST_ELEMENT (self), RESOURCE, READ, ("No signal"),
@ -748,6 +748,8 @@ gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
}
}
if (f->no_signal)
GST_BUFFER_FLAG_SET (*buffer, GST_BUFFER_FLAG_GAP);
GST_BUFFER_TIMESTAMP (*buffer) = f->timestamp;
GST_BUFFER_DURATION (*buffer) = f->duration;
gst_buffer_add_video_time_code_meta (*buffer, f->tc);