mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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335293bf50
This is needed to satisfy the new -Wunused-but-set-variable added in GCC 4.6: http://gcc.gnu.org/gcc-4.6/changes.html
1085 lines
30 KiB
C++
1085 lines
30 KiB
C++
/* GStreamer
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* Copyright (C) 2011 David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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/**
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* SECTION:element-gstdecklinksrc
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*
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* The decklinksrc element is a source element for Blackmagic
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* Decklink cards.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch -v decklinksrc ! xvimagesink
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* ]|
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*
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include "gstdecklinksrc.h"
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#include "capture.h"
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#include <string.h>
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GST_DEBUG_CATEGORY_STATIC (gst_decklink_src_debug_category);
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#define GST_CAT_DEFAULT gst_decklink_src_debug_category
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/* prototypes */
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static void gst_decklink_src_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec);
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static void gst_decklink_src_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec);
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static void gst_decklink_src_dispose (GObject * object);
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static void gst_decklink_src_finalize (GObject * object);
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static GstPad *gst_decklink_src_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_decklink_src_release_pad (GstElement * element, GstPad * pad);
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static GstStateChangeReturn
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gst_decklink_src_change_state (GstElement * element, GstStateChange transition);
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static GstClock *gst_decklink_src_provide_clock (GstElement * element);
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static gboolean gst_decklink_src_set_clock (GstElement * element,
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GstClock * clock);
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static GstIndex *gst_decklink_src_get_index (GstElement * element);
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static void gst_decklink_src_set_index (GstElement * element, GstIndex * index);
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static gboolean gst_decklink_src_send_event (GstElement * element,
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GstEvent * event);
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static gboolean gst_decklink_src_query (GstElement * element, GstQuery * query);
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static GstCaps *gst_decklink_src_audio_src_getcaps (GstPad * pad);
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static gboolean gst_decklink_src_audio_src_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_decklink_src_audio_src_acceptcaps (GstPad * pad, GstCaps * caps);
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static void gst_decklink_src_audio_src_fixatecaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_decklink_src_audio_src_activate (GstPad * pad);
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static gboolean gst_decklink_src_audio_src_activatepush (GstPad * pad,
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gboolean active);
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static gboolean gst_decklink_src_audio_src_activatepull (GstPad * pad,
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gboolean active);
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static GstPadLinkReturn gst_decklink_src_audio_src_link (GstPad * pad, GstPad * peer);
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static GstFlowReturn gst_decklink_src_audio_src_getrange (GstPad * pad,
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guint64 offset, guint length, GstBuffer ** buffer);
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static gboolean gst_decklink_src_audio_src_event (GstPad * pad, GstEvent * event);
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static gboolean gst_decklink_src_audio_src_query (GstPad * pad, GstQuery * query);
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static GstIterator *gst_decklink_src_audio_src_iterintlink (GstPad * pad);
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static GstCaps *gst_decklink_src_video_src_getcaps (GstPad * pad);
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static gboolean gst_decklink_src_video_src_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_decklink_src_video_src_acceptcaps (GstPad * pad, GstCaps * caps);
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static void gst_decklink_src_video_src_fixatecaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_decklink_src_video_src_activate (GstPad * pad);
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static gboolean gst_decklink_src_video_src_activatepush (GstPad * pad,
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gboolean active);
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static gboolean gst_decklink_src_video_src_activatepull (GstPad * pad,
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gboolean active);
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static GstPadLinkReturn gst_decklink_src_video_src_link (GstPad * pad, GstPad * peer);
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static GstFlowReturn gst_decklink_src_video_src_getrange (GstPad * pad,
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guint64 offset, guint length, GstBuffer ** buffer);
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static gboolean gst_decklink_src_video_src_event (GstPad * pad, GstEvent * event);
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static gboolean gst_decklink_src_video_src_query (GstPad * pad, GstQuery * query);
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static GstIterator *gst_decklink_src_video_src_iterintlink (GstPad * pad);
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static void gst_decklink_src_task (void *priv);
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enum
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{
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PROP_0
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};
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/* pad templates */
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static GstStaticPadTemplate gst_decklink_src_audio_src_template =
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GST_STATIC_PAD_TEMPLATE ("audiosrc",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-int,width=16,depth=16,channels=2,rate=48000")
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);
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#define MODE(w,h,n,d,i) \
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"video/x-raw-yuv,format=(fourcc)UYVY,width=" #w ",height=" #h \
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",framerate=" #n "/" #d ",interlaced=" #i
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static GstStaticPadTemplate gst_decklink_src_video_src_template =
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GST_STATIC_PAD_TEMPLATE ("videosrc",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (
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MODE(720,486,30000,1001,true) ";"
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MODE(720,486,24000,1001,true) ";"
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MODE(720,576,25,1,true) ";"
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MODE(1920,1080,24000,1001,false) ";"
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MODE(1920,1080,24,1,false) ";"
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MODE(1920,1080,25,1,false) ";"
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MODE(1920,1080,30000,1001,false) ";"
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MODE(1920,1080,30,1,false) ";"
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MODE(1920,1080,25,1,true) ";"
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MODE(1920,1080,30000,1001,true) ";"
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MODE(1920,1080,30,1,true) ";"
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MODE(1280,720,50,1,true) ";"
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MODE(1280,720,60000,1001,true) ";"
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MODE(1280,720,60,1,true)
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));
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typedef struct _DecklinkMode DecklinkMode;
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struct _DecklinkMode {
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BMDDisplayMode mode;
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int width;
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int height;
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int fps_n;
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int fps_d;
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gboolean interlaced;
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};
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static DecklinkMode modes[] = {
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{ bmdModeNTSC, 720,486,30000,1001,true },
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{ bmdModeNTSC2398, 720,486,24000,1001,true },
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{ bmdModePAL, 720,576,25,1,true },
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{ bmdModeHD1080p2398, 1920,1080,24000,1001,false },
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{ bmdModeHD1080p24, 1920,1080,24,1,false },
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{ bmdModeHD1080p25, 1920,1080,25,1,false },
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{ bmdModeHD1080p2997, 1920,1080,30000,1001,false },
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{ bmdModeHD1080p30, 1920,1080,30,1,false },
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{ bmdModeHD1080i50, 1920,1080,25,1,true },
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{ bmdModeHD1080i5994, 1920,1080,30000,1001,true },
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{ bmdModeHD1080i6000, 1920,1080,30,1,true },
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{ bmdModeHD720p50, 1280,720,50,1,true },
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{ bmdModeHD720p5994, 1280,720,60000,1001,true },
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{ bmdModeHD720p60, 1280,720,60,1,true }
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};
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/* class initialization */
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_decklink_src_debug_category, "decklinksrc", 0, \
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"debug category for decklinksrc element");
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GST_BOILERPLATE_FULL (GstDecklinkSrc, gst_decklink_src, GstElement,
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GST_TYPE_ELEMENT, DEBUG_INIT);
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static void
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gst_decklink_src_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_decklink_src_audio_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_decklink_src_video_src_template));
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gst_element_class_set_details_simple (element_class, "Decklink source",
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"Source/Video", "DeckLink Source", "David Schleef <ds@entropywave.com>");
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}
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static void
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gst_decklink_src_class_init (GstDecklinkSrcClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = gst_decklink_src_set_property;
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gobject_class->get_property = gst_decklink_src_get_property;
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gobject_class->dispose = gst_decklink_src_dispose;
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gobject_class->finalize = gst_decklink_src_finalize;
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element_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_decklink_src_request_new_pad);
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element_class->release_pad = GST_DEBUG_FUNCPTR (gst_decklink_src_release_pad);
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element_class->change_state =
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GST_DEBUG_FUNCPTR (gst_decklink_src_change_state);
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element_class->provide_clock =
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GST_DEBUG_FUNCPTR (gst_decklink_src_provide_clock);
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element_class->set_clock = GST_DEBUG_FUNCPTR (gst_decklink_src_set_clock);
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element_class->get_index = GST_DEBUG_FUNCPTR (gst_decklink_src_get_index);
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element_class->set_index = GST_DEBUG_FUNCPTR (gst_decklink_src_set_index);
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element_class->send_event = GST_DEBUG_FUNCPTR (gst_decklink_src_send_event);
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element_class->query = GST_DEBUG_FUNCPTR (gst_decklink_src_query);
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}
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static void
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gst_decklink_src_init (GstDecklinkSrc * decklinksrc,
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GstDecklinkSrcClass * decklinksrc_class)
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{
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g_static_rec_mutex_init (&decklinksrc->task_mutex);
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decklinksrc->task = gst_task_create (gst_decklink_src_task, decklinksrc);
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gst_task_set_lock (decklinksrc->task, &decklinksrc->task_mutex);
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decklinksrc->audiosrcpad =
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gst_pad_new_from_static_template (&gst_decklink_src_audio_src_template, "audiosrc");
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gst_pad_set_getcaps_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_getcaps));
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gst_pad_set_setcaps_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_setcaps));
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gst_pad_set_acceptcaps_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_acceptcaps));
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gst_pad_set_fixatecaps_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_fixatecaps));
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gst_pad_set_activate_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activate));
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gst_pad_set_activatepush_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activatepush));
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gst_pad_set_activatepull_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_activatepull));
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gst_pad_set_link_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_link));
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gst_pad_set_getrange_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_getrange));
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gst_pad_set_event_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_event));
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gst_pad_set_query_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_query));
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gst_pad_set_iterate_internal_links_function (decklinksrc->audiosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_audio_src_iterintlink));
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gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->audiosrcpad);
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decklinksrc->videosrcpad =
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gst_pad_new_from_static_template (&gst_decklink_src_video_src_template, "videosrc");
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gst_pad_set_getcaps_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_getcaps));
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gst_pad_set_setcaps_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_setcaps));
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gst_pad_set_acceptcaps_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_acceptcaps));
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gst_pad_set_fixatecaps_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_fixatecaps));
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gst_pad_set_activate_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activate));
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gst_pad_set_activatepush_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activatepush));
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gst_pad_set_activatepull_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_activatepull));
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gst_pad_set_link_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_link));
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gst_pad_set_getrange_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_getrange));
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gst_pad_set_event_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_event));
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gst_pad_set_query_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_query));
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gst_pad_set_iterate_internal_links_function (decklinksrc->videosrcpad,
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GST_DEBUG_FUNCPTR (gst_decklink_src_video_src_iterintlink));
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gst_element_add_pad (GST_ELEMENT (decklinksrc), decklinksrc->videosrcpad);
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decklinksrc->cond = g_cond_new();
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decklinksrc->mutex = g_mutex_new();
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decklinksrc->copy_data = TRUE;
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decklinksrc->mode = 0;
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decklinksrc->width = modes[decklinksrc->mode].width;
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decklinksrc->height = modes[decklinksrc->mode].height;
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decklinksrc->fps_n = modes[decklinksrc->mode].fps_n;
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decklinksrc->fps_d = modes[decklinksrc->mode].fps_d;
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decklinksrc->interlaced = modes[decklinksrc->mode].interlaced;
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decklinksrc->bmd_mode = modes[decklinksrc->mode].mode;
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}
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void
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gst_decklink_src_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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g_return_if_fail (GST_IS_DECKLINK_SRC (object));
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_decklink_src_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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g_return_if_fail (GST_IS_DECKLINK_SRC (object));
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_decklink_src_dispose (GObject * object)
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{
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g_return_if_fail (GST_IS_DECKLINK_SRC (object));
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/* clean up as possible. may be called multiple times */
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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void
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gst_decklink_src_finalize (GObject * object)
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{
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GstDecklinkSrc *decklinksrc;
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g_return_if_fail (GST_IS_DECKLINK_SRC (object));
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decklinksrc = GST_DECKLINK_SRC (object);
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/* clean up object here */
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g_cond_free (decklinksrc->cond);
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g_mutex_free (decklinksrc->mutex);
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gst_task_set_lock (decklinksrc->task, NULL);
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g_object_unref (decklinksrc->task);
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if (decklinksrc->audio_caps) {
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gst_caps_unref (decklinksrc->audio_caps);
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}
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if (decklinksrc->video_caps) {
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gst_caps_unref (decklinksrc->video_caps);
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstPad *
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gst_decklink_src_request_new_pad (GstElement * element, GstPadTemplate * templ,
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const gchar * name)
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{
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return NULL;
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}
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static void
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gst_decklink_src_release_pad (GstElement * element, GstPad * pad)
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{
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}
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static gboolean
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gst_decklink_src_start (GstElement * element)
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{
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GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (element);
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IDeckLinkIterator *iterator;
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DeckLinkCaptureDelegate *delegate;
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IDeckLinkDisplayModeIterator *mode_iterator;
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IDeckLinkDisplayMode *mode;
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int i;
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int sample_depth;
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int channels;
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BMDVideoInputFlags input_flags;
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BMDDisplayMode selected_mode;
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BMDPixelFormat pixel_format;
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HRESULT ret;
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GST_DEBUG_OBJECT (decklinksrc, "start");
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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)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
gboolean no_preroll = FALSE;
|
|
|
|
g_return_val_if_fail (GST_IS_DECKLINK_SRC (element),
|
|
GST_STATE_CHANGE_FAILURE);
|
|
|
|
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));
|
|
}
|
|
}
|
|
|
|
|