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50c4ea54f6
If we just count the frames and calculate timestamps from that, all frames will arrive late in the sink as we have a live source here. Instead take the pipeline clock at capture time as reference.
109 lines
3 KiB
C
109 lines
3 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 St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_DECKLINK_SRC_H_
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#define _GST_DECKLINK_SRC_H_
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#include <gst/gst.h>
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#include "gstdecklink.h"
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#include "capture.h"
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G_BEGIN_DECLS
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GST_DEBUG_CATEGORY_EXTERN (gst_decklink_src_debug_category);
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#define GST_TYPE_DECKLINK_SRC (gst_decklink_src_get_type())
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#define GST_DECKLINK_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECKLINK_SRC,GstDecklinkSrc))
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#define GST_DECKLINK_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DECKLINK_SRC,GstDecklinkSrcClass))
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#define GST_DECKLINK_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DECKLINK_SRC, GstDecklinkSrcClass))
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#define GST_IS_DECKLINK_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DECKLINK_SRC))
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#define GST_IS_DECKLINK_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DECKLINK_SRC))
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typedef struct _GstDecklinkSrc GstDecklinkSrc;
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typedef struct _GstDecklinkSrcClass GstDecklinkSrcClass;
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struct _GstDecklinkSrc
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{
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GstElement base_decklinksrc;
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GstPad *audiosrcpad;
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GstPad *videosrcpad;
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gboolean pending_eos; /* ATOMIC */
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gboolean have_events; /* ATOMIC */
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GList *pending_events; /* OBJECT_LOCK */
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IDeckLink *decklink;
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IDeckLinkInput *input;
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IDeckLinkConfiguration *config;
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DeckLinkCaptureDelegate *delegate;
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GMutex mutex;
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GCond cond;
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int dropped_frames;
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int dropped_frames_old;
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gboolean stop;
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GstClockTime capture_time;
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IDeckLinkVideoInputFrame *video_frame;
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IDeckLinkAudioInputPacket * audio_frame;
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GstTask *task;
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GRecMutex task_mutex;
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guint64 num_audio_samples;
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guint64 frame_num;
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int fps_n;
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int fps_d;
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int width;
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int height;
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gboolean interlaced;
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BMDDisplayMode bmd_mode;
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/* so we send a stream-start, caps, and newsegment events before buffers */
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gboolean started;
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/* properties */
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gboolean copy_data;
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GstDecklinkModeEnum mode;
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GstDecklinkConnectionEnum connection;
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GstDecklinkAudioConnectionEnum audio_connection;
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int device_number;
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#ifdef _MSC_VER
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gboolean comInitialized;
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GMutex *com_init_lock;
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GMutex *com_deinit_lock;
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GCond *com_initialized;
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GCond *com_uninitialize;
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GCond *com_uninitialized;
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#endif /* _MSC_VER */
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};
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struct _GstDecklinkSrcClass
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{
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GstElementClass base_decklinksrc_class;
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};
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GType gst_decklink_src_get_type (void);
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G_END_DECLS
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#endif
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