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gstreamer/sys/decklink/gstdecklinksrc.cpp
David Schleef a5cb7912f1 decklink: Fix win32 build
2011-03-24 16:16:38 -07:00

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/* 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 -v decklinksrc ! xvimagesink
* ]|
*
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstdecklinksrc.h"
#include "capture.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_decklink_src_debug_category);
#define GST_CAT_DEFAULT gst_decklink_src_debug_category
/* prototypes */
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_dispose (GObject * object);
static void gst_decklink_src_finalize (GObject * object);
static GstPad *gst_decklink_src_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name);
static void gst_decklink_src_release_pad (GstElement * element, GstPad * pad);
static GstStateChangeReturn
gst_decklink_src_change_state (GstElement * element, GstStateChange transition);
static GstClock *gst_decklink_src_provide_clock (GstElement * element);
static gboolean gst_decklink_src_set_clock (GstElement * element,
GstClock * clock);
static GstIndex *gst_decklink_src_get_index (GstElement * element);
static void gst_decklink_src_set_index (GstElement * element, GstIndex * index);
static gboolean gst_decklink_src_send_event (GstElement * element,
GstEvent * event);
static gboolean gst_decklink_src_query (GstElement * element, GstQuery * query);
static GstCaps *gst_decklink_src_audio_src_getcaps (GstPad * pad);
static gboolean gst_decklink_src_audio_src_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_decklink_src_audio_src_acceptcaps (GstPad * pad, GstCaps * caps);
static void gst_decklink_src_audio_src_fixatecaps (GstPad * pad, GstCaps * caps);
static gboolean gst_decklink_src_audio_src_activate (GstPad * pad);
static gboolean gst_decklink_src_audio_src_activatepush (GstPad * pad,
gboolean active);
static gboolean gst_decklink_src_audio_src_activatepull (GstPad * pad,
gboolean active);
static GstPadLinkReturn gst_decklink_src_audio_src_link (GstPad * pad, GstPad * peer);
static GstFlowReturn gst_decklink_src_audio_src_getrange (GstPad * pad,
guint64 offset, guint length, GstBuffer ** buffer);
static gboolean gst_decklink_src_audio_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_decklink_src_audio_src_query (GstPad * pad, GstQuery * query);
static GstIterator *gst_decklink_src_audio_src_iterintlink (GstPad * pad);
static GstCaps *gst_decklink_src_video_src_getcaps (GstPad * pad);
static gboolean gst_decklink_src_video_src_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_decklink_src_video_src_acceptcaps (GstPad * pad, GstCaps * caps);
static void gst_decklink_src_video_src_fixatecaps (GstPad * pad, GstCaps * caps);
static gboolean gst_decklink_src_video_src_activate (GstPad * pad);
static gboolean gst_decklink_src_video_src_activatepush (GstPad * pad,
gboolean active);
static gboolean gst_decklink_src_video_src_activatepull (GstPad * pad,
gboolean active);
static GstPadLinkReturn gst_decklink_src_video_src_link (GstPad * pad, GstPad * peer);
static GstFlowReturn gst_decklink_src_video_src_getrange (GstPad * pad,
guint64 offset, guint length, GstBuffer ** buffer);
static gboolean gst_decklink_src_video_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_decklink_src_video_src_query (GstPad * pad, GstQuery * query);
static GstIterator *gst_decklink_src_video_src_iterintlink (GstPad * pad);
static void gst_decklink_src_task (void *priv);
enum
{
PROP_0
};
/* pad templates */
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-int,width=16,depth=16,channels=2,rate=48000")
);
#define MODE(w,h,n,d,i) \
"video/x-raw-yuv,format=(fourcc)UYVY,width=" #w ",height=" #h \
",framerate=" #n "/" #d ",interlaced=" #i
static GstStaticPadTemplate gst_decklink_src_video_src_template =
GST_STATIC_PAD_TEMPLATE ("videosrc",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (
MODE(720,486,30000,1001,true) ";"
MODE(720,486,24000,1001,true) ";"
MODE(720,576,25,1,true) ";"
MODE(1920,1080,24000,1001,false) ";"
MODE(1920,1080,24,1,false) ";"
MODE(1920,1080,25,1,false) ";"
MODE(1920,1080,30000,1001,false) ";"
MODE(1920,1080,30,1,false) ";"
MODE(1920,1080,25,1,true) ";"
MODE(1920,1080,30000,1001,true) ";"
MODE(1920,1080,30,1,true) ";"
MODE(1280,720,50,1,true) ";"
MODE(1280,720,60000,1001,true) ";"
MODE(1280,720,60,1,true)
));
typedef struct _DecklinkMode DecklinkMode;
struct _DecklinkMode {
BMDDisplayMode mode;
int width;
int height;
int fps_n;
int fps_d;
gboolean interlaced;
};
static DecklinkMode modes[] = {
{ bmdModeNTSC, 720,486,30000,1001,true },
{ bmdModeNTSC2398, 720,486,24000,1001,true },
{ bmdModePAL, 720,576,25,1,true },
{ bmdModeHD1080p2398, 1920,1080,24000,1001,false },
{ bmdModeHD1080p24, 1920,1080,24,1,false },
{ bmdModeHD1080p25, 1920,1080,25,1,false },
{ bmdModeHD1080p2997, 1920,1080,30000,1001,false },
{ bmdModeHD1080p30, 1920,1080,30,1,false },
{ bmdModeHD1080i50, 1920,1080,25,1,true },
{ bmdModeHD1080i5994, 1920,1080,30000,1001,true },
{ bmdModeHD1080i6000, 1920,1080,30,1,true },
{ bmdModeHD720p50, 1280,720,50,1,true },
{ bmdModeHD720p5994, 1280,720,60000,1001,true },
{ bmdModeHD720p60, 1280,720,60,1,true }
};
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_decklink_src_debug_category, "decklinksrc", 0, \
"debug category for decklinksrc element");
GST_BOILERPLATE_FULL (GstDecklinkSrc, gst_decklink_src, GstElement,
GST_TYPE_ELEMENT, DEBUG_INIT);
static void
gst_decklink_src_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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_static_pad_template_get (&gst_decklink_src_video_src_template));
gst_element_class_set_details_simple (element_class, "Decklink source",
"Source/Video", "DeckLink Source", "David Schleef <ds@entropywave.com>");
}
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->dispose = gst_decklink_src_dispose;
gobject_class->finalize = gst_decklink_src_finalize;
element_class->request_new_pad =
GST_DEBUG_FUNCPTR (gst_decklink_src_request_new_pad);
element_class->release_pad = GST_DEBUG_FUNCPTR (gst_decklink_src_release_pad);
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_decklink_src_change_state);
element_class->provide_clock =
GST_DEBUG_FUNCPTR (gst_decklink_src_provide_clock);
element_class->set_clock = GST_DEBUG_FUNCPTR (gst_decklink_src_set_clock);
element_class->get_index = GST_DEBUG_FUNCPTR (gst_decklink_src_get_index);
element_class->set_index = GST_DEBUG_FUNCPTR (gst_decklink_src_set_index);
element_class->send_event = GST_DEBUG_FUNCPTR (gst_decklink_src_send_event);
element_class->query = GST_DEBUG_FUNCPTR (gst_decklink_src_query);
}
static void
gst_decklink_src_init (GstDecklinkSrc * decklinksrc,
GstDecklinkSrcClass * decklinksrc_class)
{
g_static_rec_mutex_init (&decklinksrc->task_mutex);
decklinksrc->task = gst_task_create (gst_decklink_src_task, decklinksrc);
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_getcaps_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_getcaps));
gst_pad_set_setcaps_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_setcaps));
gst_pad_set_acceptcaps_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_acceptcaps));
gst_pad_set_fixatecaps_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_fixatecaps));
gst_pad_set_activate_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activate));
gst_pad_set_activatepush_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activatepush));
gst_pad_set_activatepull_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activatepull));
gst_pad_set_link_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_link));
gst_pad_set_getrange_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_getrange));
gst_pad_set_event_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_event));
gst_pad_set_query_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_query));
gst_pad_set_iterate_internal_links_function (decklinksrc->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_iterintlink));
gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->audiosrcpad);
decklinksrc->videosrcpad =
gst_pad_new_from_static_template (&gst_decklink_src_video_src_template, "videosrc");
gst_pad_set_getcaps_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_getcaps));
gst_pad_set_setcaps_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_setcaps));
gst_pad_set_acceptcaps_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_acceptcaps));
gst_pad_set_fixatecaps_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_fixatecaps));
gst_pad_set_activate_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activate));
gst_pad_set_activatepush_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activatepush));
gst_pad_set_activatepull_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activatepull));
gst_pad_set_link_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_link));
gst_pad_set_getrange_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_getrange));
gst_pad_set_event_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_event));
gst_pad_set_query_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_query));
gst_pad_set_iterate_internal_links_function (decklinksrc->videosrcpad,
GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_iterintlink));
gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->videosrcpad);
decklinksrc->cond = g_cond_new();
decklinksrc->mutex = g_mutex_new();
decklinksrc->copy_data = TRUE;
decklinksrc->mode = 0;
decklinksrc->width = modes[decklinksrc->mode].width;
decklinksrc->height = modes[decklinksrc->mode].height;
decklinksrc->fps_n = modes[decklinksrc->mode].fps_n;
decklinksrc->fps_d = modes[decklinksrc->mode].fps_d;
decklinksrc->interlaced = modes[decklinksrc->mode].interlaced;
decklinksrc->bmd_mode = modes[decklinksrc->mode].mode;
}
void
gst_decklink_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstDecklinkSrc *decklinksrc;
g_return_if_fail (GST_IS_DECKLINK_SRC (object));
decklinksrc = GST_DECKLINK_SRC (object);
switch (property_id) {
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;
g_return_if_fail (GST_IS_DECKLINK_SRC (object));
decklinksrc = GST_DECKLINK_SRC (object);
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_decklink_src_dispose (GObject * object)
{
GstDecklinkSrc *decklinksrc;
g_return_if_fail (GST_IS_DECKLINK_SRC (object));
decklinksrc = GST_DECKLINK_SRC (object);
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
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_free (decklinksrc->cond);
g_mutex_free (decklinksrc->mutex);
gst_task_set_lock (decklinksrc->task, NULL);
g_object_unref (decklinksrc->task);
if (decklinksrc->audio_caps) {
gst_caps_unref (decklinksrc->audio_caps);
}
if (decklinksrc->video_caps) {
gst_caps_unref (decklinksrc->video_caps);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstPad *
gst_decklink_src_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name)
{
return NULL;
}
static void
gst_decklink_src_release_pad (GstElement * element, GstPad * pad)
{
}
static gboolean
gst_decklink_src_start (GstElement * element)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
IDeckLinkIterator *iterator;
DeckLinkCaptureDelegate *delegate;
IDeckLinkDisplayModeIterator *mode_iterator;
IDeckLinkDisplayMode *mode;
int i;
int sample_depth;
int channels;
BMDVideoInputFlags input_flags;
BMDDisplayMode selected_mode;
BMDPixelFormat pixel_format;
HRESULT ret;
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;
}
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->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_ERROR("%d: mode name: %s", i, mode_name);
mode->Release ();
i++;
}
pixel_format = bmdFormat8BitYUV;
selected_mode = decklinksrc->bmd_mode;
input_flags = 0;
ret = decklinksrc->input->EnableVideoInput (selected_mode, pixel_format,
input_flags);
if (ret != S_OK){
GST_ERROR("enable video input failed");
return FALSE;
}
sample_depth = 16;
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;
}
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);
return TRUE;
}
static GstStateChangeReturn
gst_decklink_src_change_state (GstElement * element, GstStateChange transition)
{
GstDecklinkSrc *decklinksrc;
GstStateChangeReturn ret;
gboolean no_preroll = FALSE;
g_return_val_if_fail (GST_IS_DECKLINK_SRC (element),
GST_STATE_CHANGE_FAILURE);
decklinksrc = GST_DECKLINK_SRC (element);
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 GstClock *
gst_decklink_src_provide_clock (GstElement * element)
{
return NULL;
}
static gboolean
gst_decklink_src_set_clock (GstElement * element, GstClock * clock)
{
return TRUE;
}
static GstIndex *
gst_decklink_src_get_index (GstElement * element)
{
return NULL;
}
static void
gst_decklink_src_set_index (GstElement * element, GstIndex * index)
{
}
static gboolean
gst_decklink_src_send_event (GstElement * element, GstEvent * event)
{
return TRUE;
}
static gboolean
gst_decklink_src_query (GstElement * element, GstQuery * query)
{
return FALSE;
}
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 gboolean
gst_decklink_src_audio_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "setcaps");
gst_object_unref (decklinksrc);
return TRUE;
}
static gboolean
gst_decklink_src_audio_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 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_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 gboolean
gst_decklink_src_audio_src_activatepush (GstPad * pad, gboolean active)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "activatepush");
gst_object_unref (decklinksrc);
return TRUE;
}
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 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 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 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_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 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_caps_copy (gst_pad_get_pad_template_caps (pad));
gst_object_unref (decklinksrc);
return caps;
}
static gboolean
gst_decklink_src_video_src_setcaps (GstPad * pad, GstCaps * caps)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "setcaps");
gst_object_unref (decklinksrc);
return TRUE;
}
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 void
gst_decklink_src_video_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_video_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 gboolean
gst_decklink_src_video_src_activatepush (GstPad * pad, gboolean active)
{
GstDecklinkSrc *decklinksrc;
decklinksrc = GST_DECKLINK_SRC (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (decklinksrc, "activatepush");
gst_object_unref (decklinksrc);
return TRUE;
}
static gboolean
gst_decklink_src_video_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 TRUE;
}
static GstPadLinkReturn
gst_decklink_src_video_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 GstFlowReturn
gst_decklink_src_video_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 gboolean
gst_decklink_src_video_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_video_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 GstIterator *
gst_decklink_src_video_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 void
video_frame_free (void *data)
{
IDeckLinkVideoInputFrame *video_frame = (IDeckLinkVideoInputFrame *)data;
video_frame->Release ();
}
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;
int dropped_frames;
void *data;
int n_samples;
GstFlowReturn ret;
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;
dropped_frames = decklinksrc->dropped_frames;
decklinksrc->video_frame = NULL;
decklinksrc->audio_frame = NULL;
g_mutex_unlock (decklinksrc->mutex);
if (decklinksrc->stop) {
GST_ERROR("stopping task");
return;
}
if (dropped_frames > 0) {
GST_ELEMENT_ERROR(decklinksrc, RESOURCE, READ, (NULL), (NULL));
/* ERROR */
return;
}
video_frame->GetBytes (&data);
if (decklinksrc->copy_data) {
buffer = gst_buffer_new_and_alloc (decklinksrc->width * decklinksrc->height * 2);
memcpy (GST_BUFFER_DATA (buffer), data, decklinksrc->width * decklinksrc->height * 2);
video_frame->Release ();
} else {
buffer = gst_buffer_new ();
GST_BUFFER_SIZE (buffer) = decklinksrc->width * decklinksrc->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->num_frames * GST_SECOND,
decklinksrc->fps_d, decklinksrc->fps_n);
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int ((decklinksrc->num_frames + 1) * GST_SECOND,
decklinksrc->fps_d, decklinksrc->fps_n) -
GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = decklinksrc->num_frames;
if (decklinksrc->num_frames == 0) {
GST_BUFFER_FLAG_SET(buffer, GST_BUFFER_FLAG_DISCONT);
}
decklinksrc->num_frames ++;
if (decklinksrc->video_caps == NULL) {
decklinksrc->video_caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC('U','Y','V','Y'),
"width", G_TYPE_INT, decklinksrc->width,
"height", G_TYPE_INT, decklinksrc->height,
"framerate", GST_TYPE_FRACTION,
decklinksrc->fps_n, decklinksrc->fps_d,
"interlaced", G_TYPE_BOOLEAN, decklinksrc->interlaced,
NULL);
}
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));
}
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);
audio_frame->Release ();
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));
}
}
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