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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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00a08c69ac
When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/* GStreamer Split Muxed File Source
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* Copyright (C) 2014 Jan Schmidt <jan@centricular.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_SPLITMUX_SRC_H__
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#define __GST_SPLITMUX_SRC_H__
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#include <gst/gst.h>
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#include "gstsplitmuxpartreader.h"
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G_BEGIN_DECLS
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#define GST_TYPE_SPLITMUX_SRC \
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(gst_splitmux_src_get_type())
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#define GST_SPLITMUX_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPLITMUX_SRC,GstSplitMuxSrc))
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#define GST_SPLITMUX_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPLITMUX_SRC,GstSplitMuxSrcClass))
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#define GST_IS_SPLITMUX_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPLITMUX_SRC))
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#define GST_IS_SPLITMUX_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPLITMUX_SRC))
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typedef struct _GstSplitMuxSrc GstSplitMuxSrc;
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typedef struct _GstSplitMuxSrcClass GstSplitMuxSrcClass;
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struct _GstSplitMuxSrc
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{
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GstBin parent;
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GMutex lock;
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GMutex msg_lock;
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gboolean running;
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gchar *location; /* OBJECT_LOCK */
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GstSplitMuxPartReader **parts;
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guint num_parts;
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guint num_prepared_parts;
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guint num_created_parts;
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guint cur_part;
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gboolean async_pending;
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gboolean pads_complete;
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GRWLock pads_rwlock;
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GList *pads; /* pads_lock */
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guint n_pads;
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guint n_notlinked;
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GstClockTime total_duration;
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GstClockTime end_offset;
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GstSegment play_segment;
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guint32 segment_seqnum;
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};
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struct _GstSplitMuxSrcClass
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{
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GstBinClass parent_class;
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};
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GType splitmux_src_pad_get_type (void);
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#define SPLITMUX_TYPE_SRC_PAD splitmux_src_pad_get_type()
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#define SPLITMUX_SRC_PAD_CAST(p) ((SplitMuxSrcPad *)(p))
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#define SPLITMUX_SRC_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),SPLITMUX_TYPE_SRC_PAD,SplitMuxSrcPad))
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struct _SplitMuxSrcPad
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{
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GstPad parent;
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guint cur_part;
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GstSplitMuxPartReader *reader;
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GstPad *part_pad;
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GstSegment segment;
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gboolean set_next_discont;
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gboolean clear_next_discont;
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gboolean sent_stream_start;
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gboolean sent_caps;
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gboolean sent_segment;
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};
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struct _SplitMuxSrcPadClass
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{
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GstPadClass parent;
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};
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GType gst_splitmux_src_get_type (void);
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gboolean register_splitmuxsrc (GstPlugin * plugin);
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#define SPLITMUX_SRC_LOCK(s) g_mutex_lock(&(s)->lock)
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#define SPLITMUX_SRC_UNLOCK(s) g_mutex_unlock(&(s)->lock)
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#define SPLITMUX_SRC_MSG_LOCK(s) g_mutex_lock(&(s)->msg_lock)
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#define SPLITMUX_SRC_MSG_UNLOCK(s) g_mutex_unlock(&(s)->msg_lock)
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#define SPLITMUX_SRC_PADS_WLOCK(s) g_rw_lock_writer_lock(&(s)->pads_rwlock)
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#define SPLITMUX_SRC_PADS_WUNLOCK(s) g_rw_lock_writer_unlock(&(s)->pads_rwlock)
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#define SPLITMUX_SRC_PADS_RLOCK(s) g_rw_lock_reader_lock(&(s)->pads_rwlock)
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#define SPLITMUX_SRC_PADS_RUNLOCK(s) g_rw_lock_reader_unlock(&(s)->pads_rwlock)
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G_END_DECLS
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#endif /* __GST_SPLITMUX_SRC_H__ */
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