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854baf4fdb
It works like a valve in front of the actual avwait. When recording == TRUE, other rules are then examined. When recording == FALSE, nothing is passing through. https://bugzilla.gnome.org/show_bug.cgi?id=796836
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*
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* GStreamer
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* Copyright (C) 2016 Vivia Nikolaidou <vivia@toolsonair.com>
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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_AVWAIT_H__
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#define __GST_AVWAIT_H__
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AVWAIT (gst_avwait_get_type())
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#define GST_AVWAIT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVWAIT,GstAvWait))
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#define GST_IS_AVWAIT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVWAIT))
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#define GST_AVWAIT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AVWAIT,GstAvWaitClass))
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#define GST_IS_AVWAIT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AVWAIT))
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#define GST_AVWAIT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AVWAIT,GstAvWaitClass))
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#define GST_TYPE_AVWAIT_MODE (gst_avwait_mode_get_type ())
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typedef struct _GstAvWait GstAvWait;
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typedef struct _GstAvWaitClass GstAvWaitClass;
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typedef enum
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{
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MODE_TIMECODE,
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MODE_RUNNING_TIME,
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MODE_VIDEO_FIRST
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} GstAvWaitMode;
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struct _GstAvWait
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{
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GstElement parent;
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GstVideoTimeCode *tc;
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GstClockTime target_running_time;
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GstAvWaitMode mode;
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GstVideoTimeCode *end_tc;
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GstClockTime running_time_to_end_at;
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GstPad *asrcpad, *asinkpad, *vsrcpad, *vsinkpad;
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GstAudioInfo ainfo;
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GstVideoInfo vinfo;
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GstSegment asegment, vsegment;
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GstClockTime running_time_to_wait_for;
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GstClockTime last_seen_video_running_time;
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GstVideoTimeCode *last_seen_tc;
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/* If running_time_to_wait_for has been reached but we are
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* not recording, audio shouldn't start running. It should
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* instead start synchronised with the video when we start
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* recording. Similarly when stopping recording manually vs
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* when the target timecode has been reached. So we use
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* different variables for the audio */
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GstClockTime audio_running_time_to_wait_for;
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GstClockTime audio_running_time_to_end_at;
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gboolean video_eos_flag;
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gboolean audio_flush_flag;
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gboolean shutdown_flag;
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gboolean dropping;
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gboolean recording;
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gboolean was_recording;
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GCond cond;
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GMutex mutex;
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};
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struct _GstAvWaitClass
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{
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GstElementClass parent_class;
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};
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GType gst_avwait_get_type (void);
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G_END_DECLS
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#endif /* __GST_AVWAIT_H__ */
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