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decklink: Remove obsolete files

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Sebastian Dröge 2014-12-18 18:30:16 +01:00
parent 6d931a0c0e
commit 23d6eaaa10
6 changed files with 0 additions and 2250 deletions
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184
sys/decklink/capture.cpp
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@ -1,184 +0,0 @@
/* -LICENSE-START-
** Copyright (c) 2009 Blackmagic Design
**
** Permission is hereby granted, free of charge, to any person or organization
** obtaining a copy of the software and accompanying documentation covered by
** this license (the "Software") to use, reproduce, display, distribute,
** execute, and transmit the Software, and to prepare derivative works of the
** Software, and to permit third-parties to whom the Software is furnished to
** do so, all subject to the following:
**
** The copyright notices in the Software and this entire statement, including
** the above license grant, this restriction and the following disclaimer,
** must be included in all copies of the Software, in whole or in part, and
** all derivative works of the Software, unless such copies or derivative
** works are solely in the form of machine-executable object code generated by
** a source language processor.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
** DEALINGS IN THE SOFTWARE.
** -LICENSE-END-
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "gstdecklinksrc.h"
#include "capture.h"
#define GST_CAT_DEFAULT gst_decklink_src_debug_category
static BMDTimecodeFormat g_timecodeFormat = (BMDTimecodeFormat) 0;
DeckLinkCaptureDelegate::DeckLinkCaptureDelegate ():priv (NULL), m_refCount (0)
{
g_mutex_init (&m_mutex);
}
DeckLinkCaptureDelegate::~DeckLinkCaptureDelegate ()
{
g_mutex_clear (&m_mutex);
}
ULONG DeckLinkCaptureDelegate::AddRef (void)
{
g_mutex_lock (&m_mutex);
m_refCount++;
g_mutex_unlock (&m_mutex);
return (ULONG) m_refCount;
}
ULONG DeckLinkCaptureDelegate::Release (void)
{
g_mutex_lock (&m_mutex);
m_refCount--;
g_mutex_unlock (&m_mutex);
if (m_refCount == 0) {
delete
this;
return 0;
}
return (ULONG) m_refCount;
}
HRESULT
DeckLinkCaptureDelegate::VideoInputFrameArrived (IDeckLinkVideoInputFrame *
videoFrame, IDeckLinkAudioInputPacket * audioFrame)
{
GstDecklinkSrc *decklinksrc;
GstClock *clock;
GstClockTime base_time, clock_time, capture_time;
const char *timecodeString = NULL;
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);
if (videoFrame == NULL) {
GST_WARNING_OBJECT (decklinksrc, "video frame is NULL");
return S_OK;
}
if (audioFrame == NULL) {
GST_WARNING_OBJECT (decklinksrc, "audio frame is NULL");
return S_OK;
}
if (videoFrame->GetFlags () & bmdFrameHasNoInputSource) {
GST_DEBUG_OBJECT (decklinksrc, "Frame received - No input signal detected");
return S_OK;
}
/* FIXME: g_timecodeFormat is inited to 0 and never changed? dead code? */
if (g_timecodeFormat != 0) {
IDeckLinkTimecode *timecode;
if (videoFrame->GetTimecode (g_timecodeFormat, &timecode) == S_OK) {
timecode->GetString (&timecodeString);
CONVERT_COM_STRING (timecodeString);
}
}
GST_OBJECT_LOCK (decklinksrc);
if ((clock = GST_ELEMENT_CLOCK (decklinksrc))) {
base_time = GST_ELEMENT (decklinksrc)->base_time;
gst_object_ref (clock);
} else {
base_time = GST_CLOCK_TIME_NONE;
}
GST_OBJECT_UNLOCK (decklinksrc);
if (clock) {
clock_time = gst_clock_get_time (clock);
gst_object_unref (clock);
} else {
clock_time = GST_CLOCK_TIME_NONE;
}
if (base_time != GST_CLOCK_TIME_NONE) {
capture_time = clock_time - base_time;
} else {
capture_time = GST_CLOCK_TIME_NONE;
}
GST_DEBUG_OBJECT (decklinksrc,
"Frame received [%s] - %s - %" GST_TIME_FORMAT "Size: %li bytes",
timecodeString != NULL ? timecodeString : "No timecode", "Valid Frame",
GST_TIME_ARGS (capture_time),
videoFrame->GetRowBytes () * videoFrame->GetHeight ());
if (timecodeString)
FREE_COM_STRING (timecodeString);
g_mutex_lock (&decklinksrc->mutex);
if (decklinksrc->video_frame != NULL) {
decklinksrc->dropped_frames++;
decklinksrc->video_frame->Release ();
if (decklinksrc->audio_frame) {
decklinksrc->audio_frame->Release ();
}
}
videoFrame->AddRef ();
decklinksrc->video_frame = videoFrame;
if (audioFrame) {
audioFrame->AddRef ();
decklinksrc->audio_frame = audioFrame;
}
decklinksrc->capture_time = capture_time;
/* increment regardless whether frame was dropped or not */
decklinksrc->frame_num++;
g_cond_signal (&decklinksrc->cond);
g_mutex_unlock (&decklinksrc->mutex);
return S_OK;
}
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;
}

25
sys/decklink/capture.h
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@ -1,25 +0,0 @@
#ifndef __CAPTURE_H__
#define __CAPTURE_H__
#include "gstdecklink.h"
class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
{
public:
DeckLinkCaptureDelegate();
virtual ~DeckLinkCaptureDelegate();
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
virtual ULONG STDMETHODCALLTYPE AddRef(void);
virtual ULONG STDMETHODCALLTYPE Release(void);
virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
void *priv;
private:
ULONG m_refCount;
GMutex m_mutex;
};
#endif

852
sys/decklink/gstdecklinksink.cpp
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@ -1,852 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@entropywave.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstdecklinksink
*
* The decklinksink element is a sink element for BlackMagic DeckLink
* cards.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch-1.0 -v videotestsrc ! decklinksink
* ]|
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstdecklink.h"
#include "gstdecklinksink.h"
#include <string.h>
/* FIXME:
* - handle ALLOCATION query
* - provide buffer pool with suitable strides/alignment for video
* - handle video meta
*/
GST_DEBUG_CATEGORY_STATIC (gst_decklink_sink_debug_category);
#define GST_CAT_DEFAULT gst_decklink_sink_debug_category
static void gst_decklink_sink_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_decklink_sink_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_decklink_sink_finalize (GObject * object);
static GstStateChangeReturn
gst_decklink_sink_change_state (GstElement * element,
GstStateChange transition);
static GstFlowReturn gst_decklink_sink_videosink_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer);
static gboolean gst_decklink_sink_videosink_event (GstPad * pad,
GstObject * parent, GstEvent * event);
static gboolean gst_decklink_sink_videosink_query (GstPad * pad,
GstObject * parent, GstQuery * query);
static GstFlowReturn gst_decklink_sink_audiosink_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer);
static gboolean gst_decklink_sink_audiosink_event (GstPad * pad,
GstObject * parent, GstEvent * event);
static gboolean gst_decklink_sink_audiosink_query (GstPad * pad,
GstObject * parent, GstQuery * query);
#ifdef _MSC_VER
/* COM initialization/uninitialization thread */
static void gst_decklink_sink_com_thread (GstDecklinkSink * sink);
#endif /* _MSC_VER */
enum
{
PROP_0,
PROP_MODE,
PROP_DEVICE_NUMBER
};
/* pad templates */
/* the video sink pad template is created on the fly */
static GstStaticPadTemplate gst_decklink_sink_audiosink_template =
GST_STATIC_PAD_TEMPLATE ("audiosink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw, format=S16LE, channels=2, rate=48000, "
"layout=interleaved")
);
#define parent_class gst_decklink_sink_parent_class
G_DEFINE_TYPE (GstDecklinkSink, gst_decklink_sink, GST_TYPE_ELEMENT);
static void
gst_decklink_sink_class_init (GstDecklinkSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_decklink_sink_set_property;
gobject_class->get_property = gst_decklink_sink_get_property;
gobject_class->finalize = gst_decklink_sink_finalize;
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_decklink_sink_change_state);
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Playback Mode",
"Video Mode to use for playback",
GST_TYPE_DECKLINK_MODE, GST_DECKLINK_MODE_NTSC,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
g_object_class_install_property (gobject_class, PROP_DEVICE_NUMBER,
g_param_spec_int ("device-number", "Device number",
"Output device instance to use", 0, G_MAXINT, 0,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("videosink", GST_PAD_SINK, GST_PAD_ALWAYS,
gst_decklink_mode_get_template_caps ()));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_decklink_sink_audiosink_template));
gst_element_class_set_static_metadata (element_class, "Decklink Sink",
"Video/Sink", "Decklink Sink", "David Schleef <ds@entropywave.com>");
GST_DEBUG_CATEGORY_INIT (gst_decklink_sink_debug_category, "decklinksink", 0,
"debug category for decklinksink element");
}
static void
gst_decklink_sink_init (GstDecklinkSink * decklinksink)
{
GstDecklinkSinkClass *decklinksink_class;
decklinksink_class = GST_DECKLINK_SINK_GET_CLASS (decklinksink);
decklinksink->videosinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (decklinksink_class), "videosink"), "videosink");
gst_pad_set_chain_function (decklinksink->videosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_chain));
gst_pad_set_event_function (decklinksink->videosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_event));
gst_pad_set_query_function (decklinksink->videosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_query));
gst_element_add_pad (GST_ELEMENT (decklinksink), decklinksink->videosinkpad);
decklinksink->audiosinkpad =
gst_pad_new_from_static_template (&gst_decklink_sink_audiosink_template,
"audiosink");
gst_pad_set_chain_function (decklinksink->audiosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_chain));
gst_pad_set_event_function (decklinksink->audiosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_event));
gst_pad_set_query_function (decklinksink->audiosinkpad,
GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_query));
gst_element_add_pad (GST_ELEMENT (decklinksink), decklinksink->audiosinkpad);
GST_OBJECT_FLAG_SET (decklinksink, GST_ELEMENT_FLAG_SINK);
g_cond_init (&decklinksink->cond);
g_mutex_init (&decklinksink->mutex);
g_mutex_init (&decklinksink->audio_mutex);
g_cond_init (&decklinksink->audio_cond);
decklinksink->mode = GST_DECKLINK_MODE_NTSC;
decklinksink->device_number = 0;
#ifdef _MSC_VER
g_mutex_init (&decklinksink->com_init_lock);
g_mutex_init (&decklinksink->com_deinit_lock);
g_cond_init (&decklinksink->com_initialized);
g_cond_init (&decklinksink->com_uninitialize);
g_cond_init (&decklinksink->com_uninitialized);
g_mutex_lock (&decklinksink->com_init_lock);
/* create the COM initialization thread */
g_thread_create ((GThreadFunc) gst_decklink_sink_com_thread,
decklinksink, FALSE, NULL);
/* wait until the COM thread signals that COM has been initialized */
g_cond_wait (&decklinksink->com_initialized, &decklinksink->com_init_lock);
g_mutex_unlock (&decklinksink->com_init_lock);
#endif /* _MSC_VER */
}
void
gst_decklink_sink_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstDecklinkSink *decklinksink;
g_return_if_fail (GST_IS_DECKLINK_SINK (object));
decklinksink = GST_DECKLINK_SINK (object);
switch (property_id) {
case PROP_MODE:
decklinksink->mode = (GstDecklinkModeEnum) g_value_get_enum (value);
break;
case PROP_DEVICE_NUMBER:
decklinksink->device_number = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_decklink_sink_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstDecklinkSink *decklinksink;
g_return_if_fail (GST_IS_DECKLINK_SINK (object));
decklinksink = GST_DECKLINK_SINK (object);
switch (property_id) {
case PROP_MODE:
g_value_set_enum (value, decklinksink->mode);
break;
case PROP_DEVICE_NUMBER:
g_value_set_int (value, decklinksink->device_number);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
#ifdef _MSC_VER
static void
gst_decklink_sink_com_thread (GstDecklinkSink * sink)
{
HRESULT res;
g_mutex_lock (sink->com_init_lock);
/* Initialize COM with a MTA for this process. This thread will
* be the first one to enter the apartement and the last one to leave
* it, unitializing COM properly */
res = CoInitializeEx (0, COINIT_MULTITHREADED);
if (res == S_FALSE)
GST_WARNING_OBJECT (sink,
"COM has been already initialized in the same process");
else if (res == RPC_E_CHANGED_MODE)
GST_WARNING_OBJECT (sink, "The concurrency model of COM has changed.");
else
GST_INFO_OBJECT (sink, "COM intialized succesfully");
sink->comInitialized = TRUE;
/* Signal other threads waiting on this condition that COM was initialized */
g_cond_signal (sink->com_initialized);
g_mutex_unlock (sink->com_init_lock);
/* Wait until the unitialize condition is met to leave the COM apartement */
g_mutex_lock (sink->com_deinit_lock);
g_cond_wait (sink->com_uninitialize, sink->com_deinit_lock);
CoUninitialize ();
GST_INFO_OBJECT (sink, "COM unintialized succesfully");
sink->comInitialized = FALSE;
g_cond_signal (sink->com_uninitialized);
g_mutex_unlock (sink->com_deinit_lock);
}
#endif /* _MSC_VER */
void
gst_decklink_sink_finalize (GObject * object)
{
GstDecklinkSink *decklinksink;
decklinksink = GST_DECKLINK_SINK (object);
g_cond_clear (&decklinksink->cond);
g_mutex_clear (&decklinksink->mutex);
g_cond_clear (&decklinksink->audio_cond);
g_mutex_clear (&decklinksink->audio_mutex);
#ifdef _MSC_VER
/* signal the COM thread that it should uninitialize COM */
if (decklinksink->comInitialized) {
g_mutex_lock (&decklinksink->com_deinit_lock);
g_cond_signal (&decklinksink->com_uninitialize);
g_cond_wait (&decklinksink->com_uninitialized,
&decklinksink->com_deinit_lock);
g_mutex_unlock (&decklinksink->com_deinit_lock);
}
g_mutex_clear (&decklinksink->com_init_lock);
g_mutex_clear (&decklinksink->com_deinit_lock);
g_cond_clear (&decklinksink->com_initialized);
g_cond_clear (&decklinksink->com_uninitialize);
g_cond_clear (&decklinksink->com_uninitialized);
#endif /* _MSC_VER */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* FIXME: post error messages for the misc. failures */
static gboolean
gst_decklink_sink_start (GstDecklinkSink * decklinksink)
{
HRESULT ret;
const GstDecklinkMode *mode;
BMDAudioSampleType sample_depth;
decklinksink->decklink =
gst_decklink_get_nth_device (decklinksink->device_number);
if (!decklinksink->decklink) {
GST_WARNING ("failed to get device %d", decklinksink->device_number);
return FALSE;
}
decklinksink->output =
gst_decklink_get_nth_output (decklinksink->device_number);
if (!decklinksink->output) {
GST_WARNING ("no output for device %d", decklinksink->device_number);
return FALSE;
}
decklinksink->callback = new Output;
decklinksink->callback->decklinksink = decklinksink;
decklinksink->output->SetAudioCallback (decklinksink->callback);
mode = gst_decklink_get_mode (decklinksink->mode);
ret = decklinksink->output->EnableVideoOutput (mode->mode,
bmdVideoOutputFlagDefault);
if (ret != S_OK) {
GST_WARNING ("failed to enable video output");
return FALSE;
}
//decklinksink->video_enabled = TRUE;
decklinksink->output->
SetScheduledFrameCompletionCallback (decklinksink->callback);
sample_depth = bmdAudioSampleType16bitInteger;
ret = decklinksink->output->EnableAudioOutput (bmdAudioSampleRate48kHz,
sample_depth, 2, bmdAudioOutputStreamContinuous);
if (ret != S_OK) {
GST_WARNING ("failed to enable audio output");
return FALSE;
}
decklinksink->audio_adapter = gst_adapter_new ();
decklinksink->num_frames = 0;
return TRUE;
}
static gboolean
gst_decklink_sink_force_stop (GstDecklinkSink * decklinksink)
{
g_mutex_lock (&decklinksink->mutex);
decklinksink->stop = TRUE;
g_cond_signal (&decklinksink->cond);
g_mutex_unlock (&decklinksink->mutex);
g_mutex_lock (&decklinksink->audio_mutex);
g_cond_signal (&decklinksink->audio_cond);
g_mutex_unlock (&decklinksink->audio_mutex);
return TRUE;
}
static gboolean
gst_decklink_sink_stop (GstDecklinkSink * decklinksink)
{
decklinksink->output->StopScheduledPlayback (0, NULL, 0);
decklinksink->output->DisableAudioOutput ();
decklinksink->output->DisableVideoOutput ();
decklinksink->output->SetAudioCallback (NULL);
decklinksink->output->SetScheduledFrameCompletionCallback (NULL);
delete decklinksink->callback;
decklinksink->callback = NULL;
return TRUE;
}
static GstStateChangeReturn
gst_decklink_sink_change_state (GstElement * element, GstStateChange transition)
{
GstDecklinkSink *decklinksink;
GstStateChangeReturn ret;
decklinksink = GST_DECKLINK_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_decklink_sink_start (decklinksink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto out;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_segment_init (&decklinksink->audio_segment, GST_FORMAT_TIME);
gst_segment_init (&decklinksink->video_segment, GST_FORMAT_TIME);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
gst_decklink_sink_force_stop (decklinksink);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_decklink_sink_stop (decklinksink);
break;
default:
break;
}
out:
return ret;
}
static GstFlowReturn
gst_decklink_sink_videosink_chain (GstPad * pad, GstObject * parent,
GstBuffer * buffer)
{
GstDecklinkSink *decklinksink;
IDeckLinkMutableVideoFrame *frame;
void *data;
GstFlowReturn flow_ret;
const GstDecklinkMode *mode;
HRESULT ret;
GstClockTime timestamp, duration;
GstClockTime running_time;
GstClockTime running_time_duration;
GstClock *clock;
GstClockID clock_id;
GstClockTime base_time;
decklinksink = GST_DECKLINK_SINK (parent);
#if 0
if (!decklinksink->video_enabled) {
HRESULT ret;
ret = decklinksink->output->EnableVideoOutput (decklinksink->display_mode,
bmdVideoOutputFlagDefault);
if (ret != S_OK) {
GST_WARNING ("failed to enable video output");
//return FALSE;
}
decklinksink->video_enabled = TRUE;
}
#endif
mode = gst_decklink_get_mode (decklinksink->mode);
ret = decklinksink->output->CreateVideoFrame (mode->width,
mode->height, mode->width * 2, decklinksink->pixel_format,
bmdFrameFlagDefault, &frame);
if (ret != S_OK) {
GST_ELEMENT_ERROR (decklinksink, STREAM, FAILED,
(NULL), ("Failed to create video frame: 0x%08x", ret));
return GST_FLOW_ERROR;
}
frame->GetBytes (&data);
gst_buffer_extract (buffer, 0, data, gst_buffer_get_size (buffer));
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
if (duration == GST_CLOCK_TIME_NONE) {
duration = gst_util_uint64_scale_int (GST_SECOND, mode->fps_d, mode->fps_n);
}
running_time =
gst_segment_to_running_time (&decklinksink->video_segment,
GST_FORMAT_TIME, timestamp);
running_time_duration =
gst_segment_to_running_time (&decklinksink->video_segment,
GST_FORMAT_TIME, timestamp + duration) - running_time;
gst_buffer_unref (buffer);
#if 0
g_mutex_lock (&decklinksink->mutex);
/* FIXME: This is not correct as it assumes that the decklink clock
* has the exact same value as the pipeline clock at any time. Not
* only the same rate!
*/
while (decklinksink->queued_frames > 2 && !decklinksink->stop) {
g_cond_wait (&decklinksink->cond, &decklinksink->mutex);
}
#else
/* XXX: Wait until the pipeline clock reaches our running time to
* throttle filling the decklinksink internal queue */
clock = gst_element_get_clock (GST_ELEMENT (decklinksink));
base_time = gst_element_get_base_time (GST_ELEMENT (decklinksink));
if (clock) {
if (base_time != GST_CLOCK_TIME_NONE) {
GstClockTime clock_time = gst_clock_get_time (clock);
if (base_time + running_time + running_time_duration <
gst_clock_get_time (clock)) {
GST_WARNING_OBJECT (decklinksink,
"Dropping too late frame: %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time + running_time_duration),
GST_TIME_ARGS (clock_time - base_time));
gst_object_unref (clock);
flow_ret = GST_FLOW_OK;
goto out;
}
clock_id = gst_clock_new_single_shot_id (clock, base_time + running_time);
GST_LOG_OBJECT (decklinksink,
"waiting for clock: %" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT,
GST_TIME_ARGS (clock_time), GST_TIME_ARGS (base_time + running_time));
gst_clock_id_wait (clock_id, NULL);
GST_LOG_OBJECT (decklinksink, "finished waiting for clock");
gst_clock_id_unref (clock_id);
}
gst_object_unref (clock);
}
#endif
if (!decklinksink->stop) {
decklinksink->queued_frames++;
}
#if 0
g_mutex_unlock (&decklinksink->mutex);
#endif
if (!decklinksink->stop) {
GST_LOG_OBJECT (decklinksink, "Scheduling frame for %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time));
ret = decklinksink->output->ScheduleVideoFrame (frame,
running_time, running_time_duration, GST_SECOND);
if (ret != S_OK) {
GST_ELEMENT_ERROR (decklinksink, STREAM, FAILED,
(NULL), ("Failed to schedule frame: 0x%08x", ret));
flow_ret = GST_FLOW_ERROR;
goto out;
}
decklinksink->num_frames++;
if (!decklinksink->sched_started) {
GST_DEBUG_OBJECT (decklinksink,
"Starting scheduled playback at %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time));
ret =
decklinksink->output->StartScheduledPlayback (running_time,
GST_SECOND, 1.0);
if (ret != S_OK) {
GST_ELEMENT_ERROR (decklinksink, STREAM, FAILED,
(NULL), ("Failed to start scheduled playback: 0x%08x", ret));
flow_ret = GST_FLOW_ERROR;
goto out;
}
decklinksink->sched_started = TRUE;
}
flow_ret = GST_FLOW_OK;
} else {
flow_ret = GST_FLOW_FLUSHING;
}
out:
frame->Release ();
return flow_ret;
}
static gboolean
gst_decklink_sink_videosink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
gboolean res;
GstDecklinkSink *decklinksink;
decklinksink = GST_DECKLINK_SINK (parent);
GST_DEBUG_OBJECT (pad, "event: %" GST_PTR_FORMAT, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:{
decklinksink->pixel_format = bmdFormat8BitYUV;
res = TRUE;
/* FIXME: this makes no sense, template caps don't contain v210 */
#if 0
GstCaps *caps;
gst_event_parse_caps (event, &caps);
ret = gst_video_format_parse_caps (caps, &format, &width, &height);
if (ret) {
if (format == GST_VIDEO_FORMAT_v210) {
decklinksink->pixel_format = bmdFormat10BitYUV;
} else {
decklinksink->pixel_format = bmdFormat8BitYUV;
}
}
#endif
break;
}
case GST_EVENT_EOS:
/* FIXME: EOS aggregation with audio pad looks wrong */
decklinksink->video_eos = TRUE;
decklinksink->video_seqnum = gst_event_get_seqnum (event);
{
GstMessage *message;
message = gst_message_new_eos (GST_OBJECT_CAST (decklinksink));
gst_message_set_seqnum (message, decklinksink->video_seqnum);
gst_element_post_message (GST_ELEMENT_CAST (decklinksink), message);
}
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_SEGMENT:
gst_event_copy_segment (event, &decklinksink->video_segment);
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_segment_init (&decklinksink->video_segment, GST_FORMAT_TIME);
res = gst_pad_event_default (pad, parent, event);
break;
default:
res = gst_pad_event_default (pad, parent, event);
break;
}
return res;
}
static gboolean
gst_decklink_sink_videosink_query (GstPad * pad, GstObject * parent,
GstQuery * query)
{
gboolean res;
GstDecklinkSink *decklinksink;
decklinksink = GST_DECKLINK_SINK (parent);
GST_DEBUG_OBJECT (decklinksink, "query");
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:{
GstCaps *mode_caps, *filter, *caps;
/* FIXME: do we change mode if incoming caps change? If yes, we
* should probably return the template caps instead */
mode_caps = gst_decklink_mode_get_caps (decklinksink->mode);
gst_query_parse_caps (query, &filter);
if (filter) {
caps =
gst_caps_intersect_full (filter, mode_caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (mode_caps);
} else {
caps = mode_caps;
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
res = TRUE;
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
static GstFlowReturn
gst_decklink_sink_audiosink_chain (GstPad * pad, GstObject * parent,
GstBuffer * buffer)
{
GstDecklinkSink *decklinksink;
GstFlowReturn ret;
decklinksink = GST_DECKLINK_SINK (parent);
if (decklinksink->stop)
return GST_FLOW_FLUSHING;
g_mutex_lock (&decklinksink->audio_mutex);
/* FIXME: This is not correct as it assumes that the decklink clock
* has the exact same value as the pipeline clock at any time. Not
* only the same rate!
*/
while (!decklinksink->stop &&
gst_adapter_available (decklinksink->audio_adapter) > 1600 * 4 * 2) {
g_cond_wait (&decklinksink->audio_cond, &decklinksink->audio_mutex);
}
gst_adapter_push (decklinksink->audio_adapter, buffer);
g_mutex_unlock (&decklinksink->audio_mutex);
ret = GST_FLOW_OK;
return ret;
}
static gboolean
gst_decklink_sink_audiosink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
gboolean res;
GstDecklinkSink *decklinksink;
decklinksink = GST_DECKLINK_SINK (parent);
GST_DEBUG_OBJECT (pad, "event: %" GST_PTR_FORMAT, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
/* FIXME: EOS aggregation with video pad looks wrong */
decklinksink->audio_eos = TRUE;
decklinksink->audio_seqnum = gst_event_get_seqnum (event);
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_SEGMENT:
gst_event_copy_segment (event, &decklinksink->audio_segment);
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_segment_init (&decklinksink->audio_segment, GST_FORMAT_TIME);
res = gst_pad_event_default (pad, parent, event);
break;
default:
res = gst_pad_event_default (pad, parent, event);
break;
}
return res;
}
static gboolean
gst_decklink_sink_audiosink_query (GstPad * pad, GstObject * parent,
GstQuery * query)
{
gboolean res;
GST_DEBUG_OBJECT (pad, "query: %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
HRESULT
Output::ScheduledFrameCompleted (IDeckLinkVideoFrame * completedFrame,
BMDOutputFrameCompletionResult result)
{
GST_DEBUG ("ScheduledFrameCompleted");
g_mutex_lock (&decklinksink->mutex);
g_cond_signal (&decklinksink->cond);
decklinksink->queued_frames--;
g_mutex_unlock (&decklinksink->mutex);
return S_OK;
}
HRESULT
Output::ScheduledPlaybackHasStopped ()
{
GST_DEBUG ("ScheduledPlaybackHasStopped");
return S_OK;
}
HRESULT
Output::RenderAudioSamples (bool preroll)
{
uint32_t samplesWritten;
HRESULT ret;
// guint64 samplesToWrite;
if (decklinksink->stop) {
GST_DEBUG ("decklinksink->stop set TRUE!");
decklinksink->output->BeginAudioPreroll ();
// running = true;
} else {
gconstpointer data;
int n;
g_mutex_lock (&decklinksink->audio_mutex);
n = gst_adapter_available (decklinksink->audio_adapter);
if (n > 0) {
data = gst_adapter_map (decklinksink->audio_adapter, n);
/* FIXME: This is not correct. We assume here that the decklink
* clock runs at the same rate as the pipeline clock and that
* the input stream has no discontinuities at all
*/
ret = decklinksink->output->ScheduleAudioSamples ((void *) data, n / 4,
0, 0, &samplesWritten);
gst_adapter_unmap (decklinksink->audio_adapter);
gst_adapter_flush (decklinksink->audio_adapter, samplesWritten * 4);
if (ret != S_OK) {
GST_ELEMENT_ERROR (decklinksink, STREAM, FAILED,
(NULL), ("Failed to schedule audio samples: 0x%08x", ret));
} else {
GST_DEBUG ("wrote %d samples, %d available", samplesWritten, n / 4);
}
g_cond_signal (&decklinksink->audio_cond);
} else {
if (decklinksink->audio_eos) {
GstMessage *message;
message = gst_message_new_eos (GST_OBJECT_CAST (decklinksink));
gst_message_set_seqnum (message, decklinksink->audio_seqnum);
gst_element_post_message (GST_ELEMENT_CAST (decklinksink), message);
}
}
g_mutex_unlock (&decklinksink->audio_mutex);
}
GST_DEBUG ("RenderAudioSamples");
return S_OK;
}
Output::~Output ()
{
}

108
sys/decklink/gstdecklinksink.h
View file

@ -1,108 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_DECKLINK_SINK_H_
#define _GST_DECKLINK_SINK_H_
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "gstdecklink.h"
G_BEGIN_DECLS
#define GST_TYPE_DECKLINK_SINK (gst_decklink_sink_get_type())
#define GST_DECKLINK_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECKLINK_SINK,GstDecklinkSink))
#define GST_DECKLINK_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DECKLINK_SINK,GstDecklinkSinkClass))
#define GST_DECKLINK_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DECKLINK_SINK, GstDecklinkSinkClass))
#define GST_IS_DECKLINK_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DECKLINK_SINK))
#define GST_IS_DECKLINK_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DECKLINK_SINK))
typedef struct _GstDecklinkSink GstDecklinkSink;
typedef struct _GstDecklinkSinkClass GstDecklinkSinkClass;
class Output : public IDeckLinkVideoOutputCallback,
public IDeckLinkAudioOutputCallback
{
public:
GstDecklinkSink *decklinksink;
virtual HRESULT STDMETHODCALLTYPE QueryInterface (REFIID iid, LPVOID *ppv) {return E_NOINTERFACE;}
virtual ULONG STDMETHODCALLTYPE AddRef () {return 1;}
virtual ULONG STDMETHODCALLTYPE Release () {return 1;}
virtual HRESULT STDMETHODCALLTYPE ScheduledFrameCompleted (IDeckLinkVideoFrame* completedFrame, BMDOutputFrameCompletionResult result);
virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped ();
virtual HRESULT STDMETHODCALLTYPE RenderAudioSamples (bool preroll);
virtual ~Output();
};
struct _GstDecklinkSink
{
GstElement base_decklinksink;
GstAdapter *audio_adapter;
GstPad *videosinkpad;
GstPad *audiosinkpad;
GMutex mutex;
GCond cond;
GMutex audio_mutex;
GCond audio_cond;
int queued_frames;
gboolean stop;
gboolean video_eos;
gboolean audio_eos;
int video_seqnum;
int audio_seqnum;
GstSegment audio_segment, video_segment;
IDeckLink *decklink;
IDeckLinkOutput *output;
Output *callback;
BMDDisplayMode display_mode;
BMDPixelFormat pixel_format;
gboolean video_enabled;
gboolean sched_started;
int num_frames;
/* properties */
GstDecklinkModeEnum mode;
int device_number;
#ifdef _MSC_VER
gboolean comInitialized;
GMutex com_init_lock;
GMutex com_deinit_lock;
GCond com_initialized;
GCond com_uninitialize;
GCond com_uninitialized;
#endif /* _MSC_VER */
};
struct _GstDecklinkSinkClass
{
GstElementClass base_decklinksink_class;
};
GType gst_decklink_sink_get_type (void);
G_END_DECLS
#endif

972
sys/decklink/gstdecklinksrc.cpp
View file

@ -1,972 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstdecklinksrc
*
* The decklinksrc element is a source element for Blackmagic
* Decklink cards.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch-1.0 -v decklinksrc ! videoconvert ! xvimagesink
* ]|
*
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstdecklink.h"
#include "gstdecklinksrc.h"
#include "capture.h"
#include <string.h>
GST_DEBUG_CATEGORY (gst_decklink_src_debug_category);
#define GST_CAT_DEFAULT gst_decklink_src_debug_category
typedef struct _VideoFrame VideoFrame;
struct _VideoFrame
{
IDeckLinkVideoInputFrame *frame;
IDeckLinkInput *input;
};
static void gst_decklink_src_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_decklink_src_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_decklink_src_finalize (GObject * object);
static GstStateChangeReturn
gst_decklink_src_change_state (GstElement * element, GstStateChange transition);
static gboolean gst_decklink_src_send_event (GstElement * element,
GstEvent * event);
static gboolean gst_decklink_src_audio_src_query (GstPad * pad,
GstObject * parent, GstQuery * query);
static gboolean gst_decklink_src_video_src_query (GstPad * pad,
GstObject * parent, GstQuery * query);
static void gst_decklink_src_task (void *priv);
#ifdef _MSC_VER
/* COM initialization/uninitialization thread */
static void gst_decklink_src_com_thread (GstDecklinkSrc * src);
#endif /* _MSC_VER */
enum
{
PROP_0,
PROP_MODE,
PROP_CONNECTION,
PROP_AUDIO_INPUT,
PROP_DEVICE_NUMBER
};
static GstStaticPadTemplate gst_decklink_src_audio_src_template =
GST_STATIC_PAD_TEMPLATE ("audiosrc",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw, format=S16LE, channels=2, rate=48000, "
"layout=interleaved")
);
/* the video source pad template is created on the fly */
#define parent_class gst_decklink_src_parent_class
G_DEFINE_TYPE (GstDecklinkSrc, gst_decklink_src, GST_TYPE_ELEMENT);
static void
gst_decklink_src_class_init (GstDecklinkSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_decklink_src_set_property;
gobject_class->get_property = gst_decklink_src_get_property;
gobject_class->finalize = gst_decklink_src_finalize;
element_class->send_event = GST_DEBUG_FUNCPTR (gst_decklink_src_send_event);
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_decklink_src_change_state);
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode", "Video mode to use for capture",
GST_TYPE_DECKLINK_MODE, GST_DECKLINK_MODE_NTSC,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
g_object_class_install_property (gobject_class, PROP_CONNECTION,
g_param_spec_enum ("connection", "Connection",
"Video input connection to use",
GST_TYPE_DECKLINK_CONNECTION, GST_DECKLINK_CONNECTION_SDI,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
g_object_class_install_property (gobject_class, PROP_AUDIO_INPUT,
g_param_spec_enum ("audio-input", "Audio Input",
"Audio input connection",
GST_TYPE_DECKLINK_AUDIO_CONNECTION,
GST_DECKLINK_AUDIO_CONNECTION_AUTO,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
g_object_class_install_property (gobject_class, PROP_DEVICE_NUMBER,
g_param_spec_int ("device-number", "Device number",
"Capture device instance to use", 0, G_MAXINT, 0,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT)));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_decklink_src_audio_src_template));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("videosrc", GST_PAD_SRC, GST_PAD_ALWAYS,
gst_decklink_mode_get_template_caps ()));
gst_element_class_set_static_metadata (element_class, "Decklink source",
"Source/Video", "DeckLink Source", "David Schleef <ds@entropywave.com>");
}
static void
gst_decklink_src_init (GstDecklinkSrc * decklinksrc)
{
GstDecklinkSrcClass *decklinksrc_class;
decklinksrc_class = GST_DECKLINK_SRC_GET_CLASS (decklinksrc);
g_rec_mutex_init (&decklinksrc->task_mutex);
decklinksrc->task = gst_task_new (gst_decklink_src_task, decklinksrc, NULL);
gst_task_set_lock (decklinksrc->task, &decklinksrc->task_mutex);
decklinksrc->audiosrcpad =
gst_pad_new_from_static_template (&gst_decklink_src_audio_src_template,
"audiosrc");
gst_pad_set_query_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_query));
gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->audiosrcpad);
decklinksrc->videosrcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (decklinksrc_class), "videosrc"), "videosrc");
gst_pad_set_query_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_query));
gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->videosrcpad);
GST_OBJECT_FLAG_SET (decklinksrc, GST_ELEMENT_FLAG_SOURCE);
g_cond_init (&decklinksrc->cond);
g_mutex_init (&decklinksrc->mutex);
/* FIXME: turn this into a property? */
decklinksrc->copy_data = TRUE;
decklinksrc->mode = GST_DECKLINK_MODE_NTSC;
decklinksrc->connection = GST_DECKLINK_CONNECTION_SDI;
decklinksrc->audio_connection = GST_DECKLINK_AUDIO_CONNECTION_AUTO;
decklinksrc->device_number = 0;
decklinksrc->stop = FALSE;
decklinksrc->dropped_frames = 0;
decklinksrc->dropped_frames_old = 0;
decklinksrc->frame_num = -1; /* -1 so will be 0 after incrementing */
#ifdef _MSC_VER
g_mutex_init (&decklinksrc->com_init_lock);
g_mutex_init (&decklinksrc->com_deinit_lock);
g_cond_init (&decklinksrc->com_initialized);
g_cond_init (&decklinksrc->com_uninitialize);
g_cond_init (&decklinksrc->com_uninitialized);
g_mutex_lock (&decklinksrc->com_init_lock);
/* create the COM initialization thread */
g_thread_create ((GThreadFunc) gst_decklink_src_com_thread,
decklinksrc, FALSE, NULL);
/* wait until the COM thread signals that COM has been initialized */
g_cond_wait (&decklinksrc->com_initialized, &decklinksrc->com_init_lock);
g_mutex_unlock (&decklinksrc->com_init_lock);
#endif /* _MSC_VER */
GST_DEBUG_CATEGORY_INIT (gst_decklink_src_debug_category, "decklinksrc", 0,
"debug category for decklinksrc element");
}
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_NUMBER:
decklinksrc->device_number = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_decklink_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstDecklinkSrc *decklinksrc;
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_DEVICE_NUMBER:
g_value_set_int (value, decklinksrc->device_number);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
#ifdef _MSC_VER
static void
gst_decklink_src_com_thread (GstDecklinkSrc * src)
{
HRESULT res;
g_mutex_lock (src->com_init_lock);
/* Initialize COM with a MTA for this process. This thread will
* be the first one to enter the apartement and the last one to leave
* it, unitializing COM properly */
res = CoInitializeEx (0, COINIT_MULTITHREADED);
if (res == S_FALSE)
GST_WARNING_OBJECT (src,
"COM has been already initialized in the same process");
else if (res == RPC_E_CHANGED_MODE)
GST_WARNING_OBJECT (src, "The concurrency model of COM has changed.");
else
GST_INFO_OBJECT (src, "COM intialized succesfully");
src->comInitialized = TRUE;
/* Signal other threads waiting on this condition that COM was initialized */
g_cond_signal (src->com_initialized);
g_mutex_unlock (src->com_init_lock);
/* Wait until the unitialize condition is met to leave the COM apartement */
g_mutex_lock (src->com_deinit_lock);
g_cond_wait (src->com_uninitialize, src->com_deinit_lock);
CoUninitialize ();
GST_INFO_OBJECT (src, "COM unintialized succesfully");
src->comInitialized = FALSE;
g_cond_signal (src->com_uninitialized);
g_mutex_unlock (src->com_deinit_lock);
}
#endif /* _MSC_VER */
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);
}
/* 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");
g_cond_signal (&src->cond);
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;
}
/* FIXME: post error messages for the misc. failures */
static gboolean
gst_decklink_src_start (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
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_number);
if (decklinksrc->decklink == NULL) {
return FALSE;
}
decklinksrc->input = gst_decklink_get_nth_input (decklinksrc->device_number);
if (decklinksrc->input == NULL) {
GST_ERROR ("no input source for device %i", decklinksrc->device_number);
return FALSE;
}
decklinksrc->delegate = new DeckLinkCaptureDelegate ();
decklinksrc->delegate->priv = decklinksrc;
ret = decklinksrc->input->SetCallback (decklinksrc->delegate);
if (ret != S_OK) {
GST_ERROR ("set callback failed (input source)");
return FALSE;
}
decklinksrc->config =
gst_decklink_get_nth_config (decklinksrc->device_number);
config = decklinksrc->config;
if (decklinksrc->config == NULL) {
GST_ERROR ("no config for device %i", decklinksrc->device_number);
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:
/* 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 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 ();
/* This deletes the delegate for us already */
decklinksrc->input->SetCallback (NULL);
decklinksrc->delegate = NULL;
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;
}
static GstStateChangeReturn
gst_decklink_src_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
gboolean no_preroll = FALSE;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_decklink_src_start (element)) {
ret = GST_STATE_CHANGE_FAILURE;
goto out;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
no_preroll = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
no_preroll = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_decklink_src_stop (element);
break;
default:
break;
}
if (no_preroll && ret == GST_STATE_CHANGE_SUCCESS)
ret = GST_STATE_CHANGE_NO_PREROLL;
out:
return ret;
}
static gboolean
gst_decklink_src_audio_src_query (GstPad * pad, GstObject * parent,
GstQuery * query)
{
gboolean res;
GST_DEBUG_OBJECT (pad, "query: %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
/* FIXME: report live-ness and latency for audio too */
case GST_QUERY_LATENCY:
GST_FIXME_OBJECT (parent, "should report live-ness and audio latency");
res = gst_pad_query_default (pad, parent, query);
break;
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
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 void
video_frame_free (void *data)
{
VideoFrame *video_frame = (VideoFrame *) data;
video_frame->frame->Release ();
video_frame->input->Release ();
g_free (video_frame);
}
static void
gst_decklink_src_send_initial_events (GstDecklinkSrc * src)
{
GstSegment segment;
GstEvent *event;
guint group_id;
guint32 audio_id, video_id;
gchar stream_id[9];
/* stream-start */
audio_id = g_random_int ();
video_id = g_random_int ();
while (video_id == audio_id)
video_id = g_random_int ();
group_id = gst_util_group_id_next ();
g_snprintf (stream_id, sizeof (stream_id), "%08x", audio_id);
event = gst_event_new_stream_start (stream_id);
gst_event_set_group_id (event, group_id);
gst_pad_push_event (src->audiosrcpad, event);
g_snprintf (stream_id, sizeof (stream_id), "%08x", video_id);
event = gst_event_new_stream_start (stream_id);
gst_event_set_group_id (event, group_id);
gst_pad_push_event (src->videosrcpad, event);
/* caps */
gst_pad_push_event (src->audiosrcpad,
gst_event_new_caps (gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, "S16LE", "channels", G_TYPE_INT, 2,
"rate", G_TYPE_INT, 48000, "layout", G_TYPE_STRING, "interleaved",
NULL)));
gst_pad_push_event (src->videosrcpad,
gst_event_new_caps (gst_decklink_mode_get_caps (src->mode)));
/* segment */
gst_segment_init (&segment, GST_FORMAT_TIME);
event = gst_event_new_segment (&segment);
gst_pad_push_event (src->videosrcpad, gst_event_ref (event));
gst_pad_push_event (src->audiosrcpad, event);
}
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 video_flow, audio_flow, flow;
const GstDecklinkMode *mode;
gboolean discont = FALSE;
GstClockTime capture_time;
GST_DEBUG_OBJECT (decklinksrc, "task");
g_mutex_lock (&decklinksrc->mutex);
while (decklinksrc->video_frame == NULL && !decklinksrc->stop &&
!decklinksrc->pending_eos) {
g_cond_wait (&decklinksrc->cond, &decklinksrc->mutex);
}
video_frame = decklinksrc->video_frame;
audio_frame = decklinksrc->audio_frame;
capture_time = decklinksrc->capture_time;
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;
}
if (g_atomic_int_compare_and_exchange (&decklinksrc->pending_eos, TRUE,
FALSE)) {
GST_INFO_OBJECT (decklinksrc, "EOS pending");
flow = GST_FLOW_EOS;
goto pause;
}
/* 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;
}
if (g_atomic_int_get (&decklinksrc->have_events)) {
GList *l;
GST_OBJECT_LOCK (decklinksrc);
for (l = decklinksrc->pending_events; l != NULL; l = l->next) {
GstEvent *event = GST_EVENT (l->data);
GST_DEBUG_OBJECT (decklinksrc, "pushing %s event",
GST_EVENT_TYPE_NAME (event));
gst_pad_push_event (decklinksrc->videosrcpad, gst_event_ref (event));
gst_pad_push_event (decklinksrc->audiosrcpad, event);
l->data = NULL;
}
g_list_free (decklinksrc->pending_events);
decklinksrc->pending_events = NULL;
g_atomic_int_set (&decklinksrc->have_events, FALSE);
GST_OBJECT_UNLOCK (decklinksrc);
}
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) = capture_time;
GST_BUFFER_DURATION (buffer) = gst_util_uint64_scale_int (GST_SECOND,
mode->fps_d, mode->fps_n);
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);
video_flow = gst_pad_push (decklinksrc->videosrcpad, buffer);
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) = capture_time;
/* 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;
if (discont)
GST_BUFFER_FLAG_SET (audio_buffer, GST_BUFFER_FLAG_DISCONT);
else
GST_BUFFER_FLAG_UNSET (audio_buffer, GST_BUFFER_FLAG_DISCONT);
audio_flow = gst_pad_push (decklinksrc->audiosrcpad, audio_buffer);
} else {
audio_flow = GST_FLOW_NOT_LINKED;
}
if (audio_flow == GST_FLOW_NOT_LINKED)
flow = video_flow;
else if (video_flow == GST_FLOW_NOT_LINKED)
flow = audio_flow;
else if (video_flow == GST_FLOW_FLUSHING || audio_flow == GST_FLOW_FLUSHING)
flow = GST_FLOW_FLUSHING;
else if (video_flow < GST_FLOW_EOS)
flow = video_flow;
else if (audio_flow < GST_FLOW_EOS)
flow = audio_flow;
else if (video_flow == GST_FLOW_EOS || audio_flow == GST_FLOW_EOS)
flow = GST_FLOW_EOS;
else
flow = video_flow;
if (flow != GST_FLOW_OK)
goto pause;
done:
if (audio_frame)
audio_frame->Release ();
return;
pause:
{
const gchar *reason = gst_flow_get_name (flow);
GstEvent *event = NULL;
GST_DEBUG_OBJECT (decklinksrc, "pausing task, reason %s", reason);
gst_task_pause (decklinksrc->task);
if (flow == GST_FLOW_EOS) {
/* perform EOS logic (very crude, we don't even keep a GstSegment) */
event = gst_event_new_eos ();
} else if (flow == GST_FLOW_NOT_LINKED || flow < 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, flow));
}
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;
}
}
#if 0
/* former device probe code, redux */
static void
gst_decklinksrc_list_devices (void)
{
IDeckLinkIterator *iterator;
IDeckLink *decklink;
int n_devices;
n_devices = 0;
iterator = CreateDeckLinkIteratorInstance ();
if (iterator) {
while (iterator->Next (&decklink) == S_OK) {
n_devices++;
}
}
iterator->Release ();
g_print ("%d devices\n", n_devices);
}
#endif

109
sys/decklink/gstdecklinksrc.h
View file

@ -1,109 +0,0 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_DECKLINK_SRC_H_
#define _GST_DECKLINK_SRC_H_
#include <gst/gst.h>
#include "gstdecklink.h"
#include "capture.h"
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (gst_decklink_src_debug_category);
#define GST_TYPE_DECKLINK_SRC (gst_decklink_src_get_type())
#define GST_DECKLINK_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECKLINK_SRC,GstDecklinkSrc))
#define GST_DECKLINK_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DECKLINK_SRC,GstDecklinkSrcClass))
#define GST_DECKLINK_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DECKLINK_SRC, GstDecklinkSrcClass))
#define GST_IS_DECKLINK_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DECKLINK_SRC))
#define GST_IS_DECKLINK_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DECKLINK_SRC))
typedef struct _GstDecklinkSrc GstDecklinkSrc;
typedef struct _GstDecklinkSrcClass GstDecklinkSrcClass;
struct _GstDecklinkSrc
{
GstElement base_decklinksrc;
GstPad *audiosrcpad;
GstPad *videosrcpad;
gboolean pending_eos; /* ATOMIC */
gboolean have_events; /* ATOMIC */
GList *pending_events; /* OBJECT_LOCK */
IDeckLink *decklink;
IDeckLinkInput *input;
IDeckLinkConfiguration *config;
DeckLinkCaptureDelegate *delegate;
GMutex mutex;
GCond cond;
int dropped_frames;
int dropped_frames_old;
gboolean stop;
GstClockTime capture_time;
IDeckLinkVideoInputFrame *video_frame;
IDeckLinkAudioInputPacket * audio_frame;
GstTask *task;
GRecMutex task_mutex;
guint64 num_audio_samples;
guint64 frame_num;
int fps_n;
int fps_d;
int width;
int height;
gboolean interlaced;
BMDDisplayMode bmd_mode;
/* so we send a stream-start, caps, and newsegment events before buffers */
gboolean started;
/* properties */
gboolean copy_data;
GstDecklinkModeEnum mode;
GstDecklinkConnectionEnum connection;
GstDecklinkAudioConnectionEnum audio_connection;
int device_number;
#ifdef _MSC_VER
gboolean comInitialized;
GMutex *com_init_lock;
GMutex *com_deinit_lock;
GCond *com_initialized;
GCond *com_uninitialize;
GCond *com_uninitialized;
#endif /* _MSC_VER */
};
struct _GstDecklinkSrcClass
{
GstElementClass base_decklinksrc_class;
};
GType gst_decklink_src_get_type (void);
G_END_DECLS
#endif