static gboolean
gst_decklink_src_stop (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
gst_task_stop (decklinksrc->task);
g_mutex_lock (&decklinksrc->mutex);
decklinksrc->stop = TRUE;
g_cond_signal (&decklinksrc->cond);
g_mutex_unlock (&decklinksrc->mutex);
gst_task_join (decklinksrc->task);
decklinksrc->input->StopStreams ();
decklinksrc->input->DisableVideoInput ();
decklinksrc->input->DisableAudioInput ();
g_list_free_full (decklinksrc->pending_events,
(GDestroyNotify) gst_mini_object_unref);
decklinksrc->pending_events = NULL;
decklinksrc->have_events = FALSE;
decklinksrc->pending_eos = FALSE;
return TRUE;
}
void
gst_decklink_src_finalize (GObject * object)
{
GstDecklinkSrc *decklinksrc;
g_return_if_fail (GST_IS_DECKLINK_SRC (object));
decklinksrc = GST_DECKLINK_SRC (object);
/* clean up object here */
g_cond_clear (&decklinksrc->cond);
g_mutex_clear (&decklinksrc->mutex);
gst_task_set_lock (decklinksrc->task, NULL);
g_object_unref (decklinksrc->task);
#ifdef _MSC_VER
/* signal the COM thread that it should uninitialize COM */
if (decklinksrc->comInitialized) {
g_mutex_lock (&decklinksrc->com_deinit_lock);
g_cond_signal (&decklinksrc->com_uninitialize);
g_cond_wait (&decklinksrc->com_uninitialized, &decklinksrc->com_deinit_lock);
g_mutex_unlock (&decklinksrc->com_deinit_lock);
}
g_mutex_clear (&decklinksrc->com_init_lock);
g_mutex_clear (&decklinksrc->com_deinit_lock);
g_cond_clear (&decklinksrc->com_initialized);
g_cond_clear (&decklinksrc->com_uninitialize);
g_cond_clear (&decklinksrc->com_uninitialized);
#endif /* _MSC_VER */
g_rec_mutex_clear (&decklinksrc->task_mutex);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_decklink_src_stop (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
gst_task_stop (decklinksrc->task);
g_mutex_lock (decklinksrc->mutex);
decklinksrc->stop = TRUE;
g_cond_signal (decklinksrc->cond);
g_mutex_unlock (decklinksrc->mutex);
gst_task_join (decklinksrc->task);
decklinksrc->input->StopStreams ();
decklinksrc->input->DisableVideoInput ();
decklinksrc->input->DisableAudioInput ();
decklinksrc->input->Release ();
decklinksrc->input = NULL;
decklinksrc->decklink->Release ();
decklinksrc->decklink = NULL;
return TRUE;
}
void
gst_decklink_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstDecklinkSrc *decklinksrc;
g_return_if_fail (GST_IS_DECKLINK_SRC (object));
decklinksrc = GST_DECKLINK_SRC (object);
switch (property_id) {
case PROP_MODE:
g_value_set_enum (value, decklinksrc->mode);
break;
case PROP_CONNECTION:
g_value_set_enum (value, decklinksrc->connection);
break;
case PROP_AUDIO_INPUT:
g_value_set_enum (value, decklinksrc->audio_connection);
break;
case PROP_SUBDEVICE:
g_value_set_int (value, decklinksrc->subdevice);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_decklink_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (object);
switch (property_id) {
case PROP_MODE:
decklinksrc->mode = (GstDecklinkModeEnum) g_value_get_enum (value);
break;
case PROP_CONNECTION:
decklinksrc->connection =
(GstDecklinkConnectionEnum) g_value_get_enum (value);
break;
case PROP_AUDIO_INPUT:
decklinksrc->audio_connection =
(GstDecklinkAudioConnectionEnum) g_value_get_enum (value);
break;
case PROP_DEVICE:
decklinksrc->device = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_decklink_src_audio_src_fixatecaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "fixatecaps");
gst_object_unref (decklinksrc);
}
static gboolean
gst_decklink_src_audio_src_activatepull (GstPad * pad, gboolean active)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "activatepull");
gst_object_unref (decklinksrc);
return FALSE;
}
HRESULT
DeckLinkCaptureDelegate::VideoInputFrameArrived (IDeckLinkVideoInputFrame *
videoFrame, IDeckLinkAudioInputPacket * audioFrame)
{
GstDecklinkSrc *decklinksrc;
g_return_val_if_fail (priv != NULL, S_OK);
g_return_val_if_fail (GST_IS_DECKLINK_SRC (priv), S_OK);
decklinksrc = GST_DECKLINK_SRC (priv);
// Handle Video Frame
if (videoFrame) {
if (videoFrame->GetFlags () & bmdFrameHasNoInputSource) {
GST_DEBUG ("Frame received - No input signal detected");
} else {
const char *timecodeString = NULL;
if (g_timecodeFormat != 0) {
IDeckLinkTimecode *timecode;
if (videoFrame->GetTimecode (g_timecodeFormat, &timecode) == S_OK) {
timecode->GetString (&timecodeString);
CONVERT_COM_STRING (timecodeString);
}
}
GST_DEBUG ("Frame received [%s] - %s - Size: %li bytes",
timecodeString != NULL ? timecodeString : "No timecode",
"Valid Frame", videoFrame->GetRowBytes () * videoFrame->GetHeight ());
if (timecodeString)
FREE_COM_STRING (timecodeString);
g_mutex_lock (decklinksrc->mutex);
if (decklinksrc->video_frame != NULL) {
decklinksrc->dropped_frames++;
} else {
videoFrame->AddRef ();
decklinksrc->video_frame = videoFrame;
if (audioFrame) {
audioFrame->AddRef ();
decklinksrc->audio_frame = audioFrame;
}
}
/* increment regardless whether frame was dropped or not */
decklinksrc->frame_num++;
g_cond_signal (decklinksrc->cond);
g_mutex_unlock (decklinksrc->mutex);
}
}
return S_OK;
}
/* events sent to this element directly, mainly from the application */
static gboolean
gst_decklink_src_send_event (GstElement * element, GstEvent * event)
{
GstDecklinkSrc *src;
gboolean result = FALSE;
src = GST_DECKLINK_SRC (element);
GST_DEBUG_OBJECT (src, "handling event %p %" GST_PTR_FORMAT, event, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
g_atomic_int_set (&src->pending_eos, TRUE);
GST_INFO_OBJECT (src, "EOS pending");
result = TRUE;
break;
break;
case GST_EVENT_TAG:
case GST_EVENT_CUSTOM_DOWNSTREAM:
case GST_EVENT_CUSTOM_BOTH:
/* Insert TAG, CUSTOM_DOWNSTREAM, CUSTOM_BOTH in the dataflow */
GST_OBJECT_LOCK (src);
src->pending_events = g_list_append (src->pending_events, event);
g_atomic_int_set (&src->have_events, TRUE);
GST_OBJECT_UNLOCK (src);
event = NULL;
result = TRUE;
break;
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
case GST_EVENT_CUSTOM_BOTH_OOB:
/* insert a random custom event into the pipeline */
GST_DEBUG_OBJECT (src, "pushing custom OOB event downstream");
result = gst_pad_push_event (src->videosrcpad, gst_event_ref (event));
result |= gst_pad_push_event (src->audiosrcpad, event);
/* we gave away the ref to the event in the push */
event = NULL;
break;
case GST_EVENT_CUSTOM_UPSTREAM:
/* drop */
case GST_EVENT_SEGMENT:
/* sending random SEGMENT downstream can break sync - drop */
default:
GST_LOG_OBJECT (src, "dropping %s event", GST_EVENT_TYPE_NAME (event));
break;
}
/* if we still have a ref to the event, unref it now */
if (event)
gst_event_unref (event);
return result;
}
static gboolean
gst_decklink_src_video_src_acceptcaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "acceptcaps");
gst_object_unref (decklinksrc);
return TRUE;
}
static GstPadLinkReturn
gst_decklink_src_audio_src_link (GstPad * pad, GstPad * peer)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "link");
gst_object_unref (decklinksrc);
return GST_PAD_LINK_OK;
}
static gboolean
gst_decklink_src_video_src_query (GstPad * pad, GstObject * parent,
GstQuery * query)
{
GstDecklinkSrc *decklinksrc;
gboolean ret = FALSE;
decklinksrc = GST_DECKLINK_SRC (parent);
GST_DEBUG_OBJECT (pad, "query: %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:{
GstClockTime min_latency, max_latency;
const GstDecklinkMode *mode;
/* device must be open */
if (decklinksrc->decklink == NULL) {
GST_WARNING_OBJECT (decklinksrc,
"Can't give latency since device isn't open !");
goto done;
}
mode = gst_decklink_get_mode (decklinksrc->mode);
/* min latency is the time to capture one frame */
min_latency =
gst_util_uint64_scale_int (GST_SECOND, mode->fps_d, mode->fps_n);
/* max latency is total duration of the frame buffer */
max_latency = 2 * min_latency;
GST_DEBUG_OBJECT (decklinksrc,
"report latency min %" GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
/* we are always live, the min latency is 1 frame and the max latency is
* the complete buffer of frames. */
gst_query_set_latency (query, TRUE, min_latency, max_latency);
ret = TRUE;
break;
}
default:
ret = gst_pad_query_default (pad, parent, query);
break;
}
done:
return ret;
}
static GstFlowReturn
gst_decklink_src_audio_src_getrange (GstPad * pad, guint64 offset, guint length,
GstBuffer ** buffer)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "getrange");
gst_object_unref (decklinksrc);
return GST_FLOW_OK;
}
static GstCaps *
gst_decklink_src_audio_src_getcaps (GstPad * pad)
{
GstDecklinkSrc *decklinksrc;
GstCaps *caps;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "getcaps");
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
gst_object_unref (decklinksrc);
return caps;
}
static GstIterator *
gst_decklink_src_audio_src_iterintlink (GstPad * pad)
{
GstDecklinkSrc *decklinksrc;
GstIterator *iter;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "iterintlink");
iter = gst_pad_iterate_internal_links_default (pad);
gst_object_unref (decklinksrc);
return iter;
}
static GstCaps *
gst_decklink_src_video_src_getcaps (GstPad * pad)
{
GstDecklinkSrc *decklinksrc;
GstCaps *caps;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "getcaps");
caps = gst_decklink_mode_get_caps (decklinksrc->mode);
gst_object_unref (decklinksrc);
return caps;
}
HRESULT
DeckLinkCaptureDelegate::VideoInputFormatChanged (
BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode * mode,
BMDDetectedVideoInputFormatFlags)
{
GstDecklinkSrc *decklinksrc;
g_return_val_if_fail (priv != NULL, S_OK);
g_return_val_if_fail (GST_IS_DECKLINK_SRC (priv), S_OK);
decklinksrc = GST_DECKLINK_SRC (priv);
GST_ERROR_OBJECT (decklinksrc, "unimplemented: video input format changed");
return S_OK;
}
static gboolean
gst_decklink_src_query (GstElement * element, GstQuery * query)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
gboolean ret;
GST_DEBUG_OBJECT (decklinksrc, "query");
switch (GST_QUERY_TYPE (query)) {
default:
ret = GST_ELEMENT_CLASS (parent_class)->query (element, query);
break;
}
return ret;
}
static gboolean
gst_decklink_src_audio_src_acceptcaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
GstCaps *pad_caps;
gboolean can_intersect;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
pad_caps = gst_pad_get_caps_reffed (pad);
can_intersect = gst_caps_can_intersect (pad_caps, caps);
gst_caps_unref (pad_caps);
GST_DEBUG_OBJECT (decklinksrc, "acceptcaps");
gst_object_unref (decklinksrc);
return can_intersect;
}
static gboolean
gst_decklink_src_video_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
GstCaps *mode_caps;
gboolean can_intersect;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "setcaps");
mode_caps = gst_decklink_mode_get_caps (decklinksrc->mode);
can_intersect = gst_caps_can_intersect (mode_caps, caps);
gst_caps_unref (mode_caps);
gst_object_unref (decklinksrc);
return can_intersect;
}
HRESULT
DeckLinkCaptureDelegate::VideoInputFrameArrived (IDeckLinkVideoInputFrame *
videoFrame, IDeckLinkAudioInputPacket * audioFrame)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (priv);
// Handle Video Frame
if (videoFrame) {
if (videoFrame->GetFlags () & bmdFrameHasNoInputSource) {
GST_DEBUG("Frame received - No input signal detected");
} else {
const char *timecodeString = NULL;
if (g_timecodeFormat != 0) {
IDeckLinkTimecode *timecode;
if (videoFrame->GetTimecode (g_timecodeFormat, &timecode) == S_OK) {
timecode->GetString (&timecodeString);
}
}
GST_DEBUG("Frame received [%s] - %s - Size: %li bytes",
timecodeString != NULL ? timecodeString : "No timecode",
"Valid Frame",
videoFrame->GetRowBytes () * videoFrame->GetHeight ());
if (timecodeString)
free ((void *) timecodeString);
g_mutex_lock (decklinksrc->mutex);
if (decklinksrc->video_frame != NULL) {
decklinksrc->dropped_frames++;
} else {
videoFrame->AddRef();
decklinksrc->video_frame = videoFrame;
if (audioFrame) {
audioFrame->AddRef();
decklinksrc->audio_frame = audioFrame;
}
}
g_cond_signal (decklinksrc->cond);
g_mutex_unlock (decklinksrc->mutex);
}
}
return S_OK;
}
static gboolean
gst_decklink_src_audio_src_query (GstPad * pad, GstQuery * query)
{
gboolean res;
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "query");
switch (GST_QUERY_TYPE (query)) {
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (decklinksrc);
return res;
}
static gboolean
gst_decklink_src_audio_src_event (GstPad * pad, GstEvent * event)
{
gboolean res;
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "event");
switch (GST_EVENT_TYPE (event)) {
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (decklinksrc);
return res;
}
static gboolean
gst_decklink_src_audio_src_activate (GstPad * pad)
{
GstDecklinkSrc *decklinksrc;
gboolean ret;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "activate");
if (gst_pad_check_pull_range (pad)) {
GST_DEBUG_OBJECT (pad, "activating pull");
ret = gst_pad_activate_pull (pad, TRUE);
} else {
GST_DEBUG_OBJECT (pad, "activating push");
ret = gst_pad_activate_push (pad, TRUE);
}
gst_object_unref (decklinksrc);
return ret;
}
static void
gst_decklink_src_task (void *priv)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (priv);
GstBuffer *buffer;
GstBuffer *audio_buffer;
IDeckLinkVideoInputFrame *video_frame;
IDeckLinkAudioInputPacket *audio_frame;
void *data;
gsize data_size;
int n_samples;
GstFlowReturn ret;
const GstDecklinkMode *mode;
gboolean discont = FALSE;
GST_DEBUG_OBJECT (decklinksrc, "task");
g_mutex_lock (&decklinksrc->mutex);
while (decklinksrc->video_frame == NULL && !decklinksrc->stop) {
g_cond_wait (&decklinksrc->cond, &decklinksrc->mutex);
}
video_frame = decklinksrc->video_frame;
audio_frame = decklinksrc->audio_frame;
decklinksrc->video_frame = NULL;
decklinksrc->audio_frame = NULL;
g_mutex_unlock (&decklinksrc->mutex);
if (decklinksrc->stop) {
if (video_frame)
video_frame->Release ();
if (audio_frame)
audio_frame->Release ();
GST_DEBUG ("stopping task");
return;
}
/* warning on dropped frames */
/* FIXME: post QoS message */
if (decklinksrc->dropped_frames - decklinksrc->dropped_frames_old > 0) {
GST_ELEMENT_WARNING (decklinksrc, RESOURCE, READ,
("Dropped %d frame(s), for a total of %d frame(s)",
decklinksrc->dropped_frames - decklinksrc->dropped_frames_old,
decklinksrc->dropped_frames), (NULL));
decklinksrc->dropped_frames_old = decklinksrc->dropped_frames;
/* FIXME: discont = TRUE; ? */
}
if (!decklinksrc->started) {
gst_decklink_src_send_initial_events (decklinksrc);
decklinksrc->started = TRUE;
}
mode = gst_decklink_get_mode (decklinksrc->mode);
video_frame->GetBytes (&data);
data_size = mode->width * mode->height * 2;
if (decklinksrc->copy_data) {
buffer = gst_buffer_new_and_alloc (data_size);
gst_buffer_fill (buffer, 0, data, data_size);
video_frame->Release ();
} else {
VideoFrame *vf;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
buffer = gst_buffer_new_wrapped_full ((GstMemoryFlags) 0, data, data_size,
0, data_size, vf, (GDestroyNotify) video_frame_free);
vf->frame = video_frame;
vf->input = decklinksrc->input;
vf->input->AddRef ();
}
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (decklinksrc->frame_num * GST_SECOND,
mode->fps_d, mode->fps_n);
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int ((decklinksrc->frame_num + 1) * GST_SECOND,
mode->fps_d, mode->fps_n) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = decklinksrc->frame_num;
GST_BUFFER_OFFSET_END (buffer) = decklinksrc->frame_num; /* FIXME: +1? */
/* FIXME: set video meta */
if (decklinksrc->frame_num == 0)
discont = TRUE;
if (discont)
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
else
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
/* FIXME: proper flow aggregation with audio flow */
ret = gst_pad_push (decklinksrc->videosrcpad, buffer);
if (!(ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED ||
ret == GST_FLOW_FLUSHING)) {
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", gst_flow_get_name (ret)));
goto pause;
}
if (gst_pad_is_linked (decklinksrc->audiosrcpad)) {
n_samples = audio_frame->GetSampleFrameCount ();
audio_frame->GetBytes (&data);
audio_buffer = gst_buffer_new_and_alloc (n_samples * 2 * 2);
gst_buffer_fill (audio_buffer, 0, data, n_samples * 2 * 2);
GST_BUFFER_TIMESTAMP (audio_buffer) =
gst_util_uint64_scale_int (decklinksrc->num_audio_samples * GST_SECOND,
1, 48000);
/* FIXME: should be next_timestamp - timestamp for perfect stream */
GST_BUFFER_DURATION (audio_buffer) =
gst_util_uint64_scale_int (n_samples * GST_SECOND, 1, 48000);
GST_BUFFER_OFFSET (audio_buffer) = decklinksrc->num_audio_samples;
GST_BUFFER_OFFSET_END (audio_buffer) =
GST_BUFFER_OFFSET (audio_buffer) + n_samples;
decklinksrc->num_audio_samples += n_samples;
/* FIXME: proper flow aggregation with video flow */
ret = gst_pad_push (decklinksrc->audiosrcpad, audio_buffer);
if (!(ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED ||
ret == GST_FLOW_FLUSHING)) {
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", gst_flow_get_name (ret)));
goto pause;
}
}
done:
if (audio_frame)
audio_frame->Release ();
return;
pause:
{
const gchar *reason = gst_flow_get_name (ret);
GstEvent *event = NULL;
GST_DEBUG_OBJECT (decklinksrc, "pausing task, reason %s", reason);
gst_task_pause (decklinksrc->task);
if (ret == GST_FLOW_EOS) {
/* perform EOS logic (very crude, we don't even keep a GstSegment) */
event = gst_event_new_eos ();
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
event = gst_event_new_eos ();
/* for fatal errors we post an error message, post the error
* first so the app knows about the error first.
* Also don't do this for FLUSHING because it happens
* due to flushing and posting an error message because of
* that is the wrong thing to do, e.g. when we're doing
* a flushing seek. */
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data flow error."),
("streaming task paused, reason %s (%d)", reason, ret));
}
if (event != NULL) {
GST_INFO_OBJECT (decklinksrc->videosrcpad, "pushing EOS event");
gst_pad_push_event (decklinksrc->videosrcpad, gst_event_ref (event));
GST_INFO_OBJECT (decklinksrc->audiosrcpad, "pushing EOS event");
gst_pad_push_event (decklinksrc->audiosrcpad, event);
}
goto done;
}
}
/* FIXME: post error messages for the misc. failures */
static gboolean
gst_decklink_src_start (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
DeckLinkCaptureDelegate *delegate;
BMDAudioSampleType sample_depth;
int channels;
HRESULT ret;
const GstDecklinkMode *mode;
IDeckLinkConfiguration *config;
BMDVideoConnection conn;
BMDAudioConnection aconn;
GST_DEBUG_OBJECT (decklinksrc, "start");
decklinksrc->decklink = gst_decklink_get_nth_device (decklinksrc->device);
if (decklinksrc->decklink == NULL) {
return FALSE;
}
decklinksrc->input = gst_decklink_get_nth_input (decklinksrc->device);
delegate = new DeckLinkCaptureDelegate ();
delegate->priv = decklinksrc;
ret = decklinksrc->input->SetCallback (delegate);
if (ret != S_OK) {
GST_ERROR ("set callback failed (input source)");
return FALSE;
}
decklinksrc->config = gst_decklink_get_nth_config (decklinksrc->device);
config = decklinksrc->config;
switch (decklinksrc->connection) {
default:
case GST_DECKLINK_CONNECTION_SDI:
conn = bmdVideoConnectionSDI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_HDMI:
conn = bmdVideoConnectionHDMI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_OPTICAL_SDI:
conn = bmdVideoConnectionOpticalSDI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_COMPONENT:
conn = bmdVideoConnectionComponent;
aconn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_COMPOSITE:
conn = bmdVideoConnectionComposite;
aconn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_SVIDEO:
conn = bmdVideoConnectionSVideo;
aconn = bmdAudioConnectionAnalog;
break;
}
ret = config->SetInt (bmdDeckLinkConfigVideoInputConnection, conn);
if (ret != S_OK) {
GST_ERROR ("set configuration (input source)");
return FALSE;
}
if (decklinksrc->connection == GST_DECKLINK_CONNECTION_COMPOSITE) {
ret = config->SetInt (bmdDeckLinkConfigAnalogVideoInputFlags,
bmdAnalogVideoFlagCompositeSetup75);
if (ret != S_OK) {
GST_ERROR ("set configuration (composite setup)");
return FALSE;
}
}
switch (decklinksrc->audio_connection) {
default:
case GST_DECKLINK_AUDIO_CONNECTION_AUTO:
/* set above */
break;
case GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED:
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_AUDIO_CONNECTION_AES_EBU:
aconn = bmdAudioConnectionAESEBU;
break;
case GST_DECKLINK_AUDIO_CONNECTION_ANALOG:
aconn = bmdAudioConnectionAnalog;
break;
}
ret = config->SetInt (bmdDeckLinkConfigAudioInputConnection, aconn);
if (ret != S_OK) {
GST_ERROR ("set configuration (audio input connection)");
return FALSE;
}
mode = gst_decklink_get_mode (decklinksrc->mode);
ret = decklinksrc->input->EnableVideoInput (mode->mode, bmdFormat8BitYUV, 0);
if (ret != S_OK) {
GST_ERROR ("enable video input failed");
return FALSE;
}
sample_depth = bmdAudioSampleType16bitInteger;
channels = 2;
ret = decklinksrc->input->EnableAudioInput (bmdAudioSampleRate48kHz,
sample_depth, channels);
if (ret != S_OK) {
GST_ERROR ("enable video input failed");
return FALSE;
}
ret = decklinksrc->input->StartStreams ();
if (ret != S_OK) {
GST_ERROR ("start streams failed");
return FALSE;
}
g_rec_mutex_lock (&decklinksrc->task_mutex);
gst_task_start (decklinksrc->task);
g_rec_mutex_unlock (&decklinksrc->task_mutex);
return TRUE;
}
static void
gst_decklink_src_task (void *priv)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (priv);
GstBuffer *buffer;
GstBuffer *audio_buffer;
IDeckLinkVideoInputFrame *video_frame;
IDeckLinkAudioInputPacket *audio_frame;
void *data;
int n_samples;
GstFlowReturn ret;
const GstDecklinkMode *mode;
GST_DEBUG_OBJECT (decklinksrc, "task");
g_mutex_lock (decklinksrc->mutex);
while (decklinksrc->video_frame == NULL && !decklinksrc->stop) {
g_cond_wait (decklinksrc->cond, decklinksrc->mutex);
}
video_frame = decklinksrc->video_frame;
audio_frame = decklinksrc->audio_frame;
decklinksrc->video_frame = NULL;
decklinksrc->audio_frame = NULL;
g_mutex_unlock (decklinksrc->mutex);
if (decklinksrc->stop) {
GST_DEBUG ("stopping task");
return;
}
/* warning on dropped frames */
if (decklinksrc->dropped_frames - decklinksrc->dropped_frames_old > 0) {
GST_ELEMENT_WARNING (decklinksrc, RESOURCE, READ,
("Dropped %d frame(s), for a total of %d frame(s)",
decklinksrc->dropped_frames - decklinksrc->dropped_frames_old,
decklinksrc->dropped_frames),
(NULL));
decklinksrc->dropped_frames_old = decklinksrc->dropped_frames;
}
mode = gst_decklink_get_mode (decklinksrc->mode);
video_frame->GetBytes (&data);
if (decklinksrc->copy_data) {
buffer = gst_buffer_new_and_alloc (mode->width * mode->height * 2);
memcpy (GST_BUFFER_DATA (buffer), data, mode->width * mode->height * 2);
video_frame->Release ();
} else {
buffer = gst_buffer_new ();
GST_BUFFER_SIZE (buffer) = mode->width * mode->height * 2;
GST_BUFFER_DATA (buffer) = (guint8 *) data;
GST_BUFFER_FREE_FUNC (buffer) = video_frame_free;
GST_BUFFER_MALLOCDATA (buffer) = (guint8 *) video_frame;
}
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (decklinksrc->frame_num * GST_SECOND,
mode->fps_d, mode->fps_n);
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int ((decklinksrc->frame_num + 1) * GST_SECOND,
mode->fps_d, mode->fps_n) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = decklinksrc->frame_num;
GST_BUFFER_OFFSET_END (buffer) = decklinksrc->frame_num;
if (decklinksrc->frame_num == 0) {
GstEvent *event;
gboolean ret;
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0,
GST_CLOCK_TIME_NONE, 0);
ret = gst_pad_push_event (decklinksrc->videosrcpad, event);
if (!ret) {
GST_ERROR_OBJECT (decklinksrc, "new segment event ret=%d", ret);
return;
}
}
if (decklinksrc->video_caps == NULL) {
decklinksrc->video_caps = gst_decklink_mode_get_caps (decklinksrc->mode);
}
gst_buffer_set_caps (buffer, decklinksrc->video_caps);
ret = gst_pad_push (decklinksrc->videosrcpad, buffer);
if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (decklinksrc, CORE, NEGOTIATION, (NULL), (NULL));
}
if (gst_pad_is_linked (decklinksrc->audiosrcpad)) {
n_samples = audio_frame->GetSampleFrameCount ();
audio_frame->GetBytes (&data);
audio_buffer = gst_buffer_new_and_alloc (n_samples * 2 * 2);
memcpy (GST_BUFFER_DATA (audio_buffer), data, n_samples * 2 * 2);
GST_BUFFER_TIMESTAMP (audio_buffer) =
gst_util_uint64_scale_int (decklinksrc->num_audio_samples * GST_SECOND,
1, 48000);
GST_BUFFER_DURATION (audio_buffer) =
gst_util_uint64_scale_int ((decklinksrc->num_audio_samples +
n_samples) * GST_SECOND, 1,
48000) - GST_BUFFER_TIMESTAMP (audio_buffer);
decklinksrc->num_audio_samples += n_samples;
if (decklinksrc->audio_caps == NULL) {
decklinksrc->audio_caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
"signed", G_TYPE_BOOLEAN, TRUE,
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 16,
"channels", G_TYPE_INT, 2, "rate", G_TYPE_INT, 48000, NULL);
}
gst_buffer_set_caps (audio_buffer, decklinksrc->audio_caps);
ret = gst_pad_push (decklinksrc->audiosrcpad, audio_buffer);
if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (decklinksrc, CORE, NEGOTIATION, (NULL), (NULL));
}
}
audio_frame->Release ();
}
static gboolean
gst_decklink_src_start (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
IDeckLinkIterator *iterator;
DeckLinkCaptureDelegate *delegate;
//IDeckLinkDisplayModeIterator *mode_iterator;
//IDeckLinkDisplayMode *mode;
BMDAudioSampleType sample_depth;
int channels;
HRESULT ret;
const GstDecklinkMode *mode;
IDeckLinkConfiguration *config;
BMDVideoConnection conn;
BMDAudioConnection aconn;
int i;
GST_DEBUG_OBJECT (decklinksrc, "start");
iterator = CreateDeckLinkIteratorInstance ();
if (iterator == NULL) {
GST_ERROR ("no driver");
return FALSE;
}
ret = iterator->Next (&decklinksrc->decklink);
if (ret != S_OK) {
GST_ERROR ("no card");
return FALSE;
}
for (i = 0; i < decklinksrc->subdevice; i++) {
ret = iterator->Next (&decklinksrc->decklink);
if (ret != S_OK) {
GST_ERROR ("no card");
return FALSE;
}
}
ret = decklinksrc->decklink->QueryInterface (IID_IDeckLinkInput,
(void **) &decklinksrc->input);
if (ret != S_OK) {
GST_ERROR ("query interface failed");
return FALSE;
}
delegate = new DeckLinkCaptureDelegate ();
delegate->priv = decklinksrc;
decklinksrc->input->SetCallback (delegate);
ret = decklinksrc->decklink->QueryInterface (IID_IDeckLinkConfiguration,
(void **) &config);
if (ret != S_OK) {
GST_ERROR ("query interface failed");
return FALSE;
}
switch (decklinksrc->connection) {
default:
case GST_DECKLINK_CONNECTION_SDI:
conn = bmdVideoConnectionSDI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_HDMI:
conn = bmdVideoConnectionHDMI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_OPTICAL_SDI:
conn = bmdVideoConnectionOpticalSDI;
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_CONNECTION_COMPONENT:
conn = bmdVideoConnectionComponent;
aconn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_COMPOSITE:
conn = bmdVideoConnectionComposite;
aconn = bmdAudioConnectionAnalog;
break;
case GST_DECKLINK_CONNECTION_SVIDEO:
conn = bmdVideoConnectionSVideo;
aconn = bmdAudioConnectionAnalog;
break;
}
ret = config->SetInt (bmdDeckLinkConfigVideoInputConnection, conn);
if (ret != S_OK) {
GST_ERROR ("set configuration (input source)");
return FALSE;
}
if (decklinksrc->connection == GST_DECKLINK_CONNECTION_COMPOSITE) {
ret = config->SetInt (bmdDeckLinkConfigAnalogVideoInputFlags,
bmdAnalogVideoFlagCompositeSetup75);
if (ret != S_OK) {
GST_ERROR ("set configuration (composite setup)");
return FALSE;
}
}
switch (decklinksrc->audio_connection) {
default:
case GST_DECKLINK_AUDIO_CONNECTION_AUTO:
break;
case GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED:
aconn = bmdAudioConnectionEmbedded;
break;
case GST_DECKLINK_AUDIO_CONNECTION_AES_EBU:
aconn = bmdAudioConnectionAESEBU;
break;
case GST_DECKLINK_AUDIO_CONNECTION_ANALOG:
aconn = bmdAudioConnectionAnalog;
break;
}
ret = config->SetInt (bmdDeckLinkConfigAudioInputConnection, aconn);
if (ret != S_OK) {
GST_ERROR ("set configuration (audio input connection)");
return FALSE;
}
#if 0
ret = decklinksrc->input->GetDisplayModeIterator (&mode_iterator);
if (ret != S_OK) {
GST_ERROR ("failed to get display mode iterator");
return FALSE;
}
i = 0;
while (mode_iterator->Next (&mode) == S_OK) {
const char *mode_name;
mode->GetName (&mode_name);
GST_DEBUG ("%d: mode name: %s", i, mode_name);
mode->Release ();
i++;
}
#endif
mode = gst_decklink_get_mode (decklinksrc->mode);
ret = decklinksrc->input->EnableVideoInput (mode->mode, bmdFormat8BitYUV, 0);
if (ret != S_OK) {
GST_ERROR ("enable video input failed");
return FALSE;
}
sample_depth = bmdAudioSampleType16bitInteger;
channels = 2;
ret = decklinksrc->input->EnableAudioInput (bmdAudioSampleRate48kHz,
sample_depth, channels);
if (ret != S_OK) {
GST_ERROR ("enable video input failed");
return FALSE;
}
ret = decklinksrc->input->StartStreams ();
if (ret != S_OK) {
GST_ERROR ("start streams failed");
return FALSE;
}
g_static_rec_mutex_lock (&decklinksrc->task_mutex);
gst_task_start (decklinksrc->task);
g_static_rec_mutex_unlock (&decklinksrc->task_mutex);
return TRUE;
}