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gstreamer/subprojects/gst-plugins-good/gst/multifile/gstsplitmuxpartreader.h

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splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* GStreamer Split Muxed File Source - Part reader
* Copyright (C) 2014 Jan Schmidt <jan@centricular.com>
*
* 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 St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_SPLITMUX_PART_READER_H__
#define __GST_SPLITMUX_PART_READER_H__
#include <gst/gst.h>
#include <gst/base/gstdataqueue.h>
G_BEGIN_DECLS
#define GST_TYPE_SPLITMUX_PART_READER \
(gst_splitmux_part_reader_get_type())
#define GST_SPLITMUX_PART_READER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPLITMUX_PART_READER,GstSplitMuxSrc))
#define GST_SPLITMUX_PART_READER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPLITMUX_PART_READER,GstSplitMuxSrcClass))
#define GST_IS_SPLITMUX_PART_READER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPLITMUX_PART_READER))
#define GST_IS_SPLITMUX_PART_READER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPLITMUX_PART_READER))
typedef struct _GstSplitMuxPartReader GstSplitMuxPartReader;
typedef struct _GstSplitMuxPartReaderClass GstSplitMuxPartReaderClass;
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
typedef struct _GstSplitMuxPartReaderInfo GstSplitMuxPartReaderInfo;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
typedef struct _SplitMuxSrcPad SplitMuxSrcPad;
typedef struct _SplitMuxSrcPadClass SplitMuxSrcPadClass;
typedef enum
{
PART_STATE_NULL,
PART_STATE_PREPARING_COLLECT_STREAMS,
PART_STATE_PREPARING_MEASURE_STREAMS,
PART_STATE_PREPARING_RESET_FOR_READY,
PART_STATE_READY,
PART_STATE_FAILED,
} GstSplitMuxPartState;
typedef GstPad *(*GstSplitMuxPartReaderPadCb)(GstSplitMuxPartReader *reader, GstPad *src_pad, gpointer cb_data);
splitmuxsrc: Add add-fragment signal and examples Add a signal that allows adding fragments with a specific offset and duration directly to splitmuxsrc's list. By providing the fragment's offset on the playback timeline and duration directly, splitmuxsrc doesn't need to measure the fragment making for faster startup times. Add a bus message that's published when fragments are measured, reporting the offset and duration, so they can be cached by an application and used on future invocations. Add examples for handling the bus message and using the 'add-fragment' signal. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-03 13:41:03 +00:00
typedef void (*GstSplitMuxPartReaderMeasuredCb)(GstSplitMuxPartReader *reader, const gchar *filename, GstClockTime offset, GstClockTime duration, gpointer cb_data);
splitmuxsrc: Add num-lookahead property Add a `num-lookahead` property that will 'prepare' a number of fragments in advance of the playhead if they have been deactivated or closed by a limited number of `num-open-fragments`. It can help to avoid any play stalls reading the indexes or headers of the next file from high-latency media or on resource limited machines. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 08:45:15 +00:00
typedef void (*GstSplitMuxPartReaderLoadedCb)(GstSplitMuxPartReader *reader, gpointer cb_data);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
struct _GstSplitMuxPartReaderInfo
{
GstClockTime duration;
GstClockTime start_offset;
};
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
struct _GstSplitMuxPartReader
{
GstPipeline parent;
GstSplitMuxPartState prep_state;
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
gboolean need_duration_measuring;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gchar *path;
GstElement *src;
GstElement *typefind;
GstElement *demux;
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
gboolean async_pending;
splitmuxsrc: Rename some internal terminology A part reader can be 'loaded' (prepared, but not currently outputting anything) or 'playing' (actively being used to output data) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 15:26:51 +00:00
splitmuxsrc: Don't create part reader elements initially Only create the part reader elements internally the first time the part is activated. Saves some startup time when preloading a large number of fragments Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-07-12 01:09:14 +00:00
gboolean created;
splitmuxsrc: Rename some internal terminology A part reader can be 'loaded' (prepared, but not currently outputting anything) or 'playing' (actively being used to output data) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 15:26:51 +00:00
gboolean loaded;
gboolean playing;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gboolean prepared;
gboolean flushing;
gboolean no_more_pads;
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
GstSplitMuxPartReaderInfo info;
splitmuxsrc: Keep streams aligned during adjustments When calculating the timestamp offset to apply to media streams in a fragment, ensure that all fragments are offset "together" to preserve alignment in cases where there might gaps in a recording at a fragment boundary. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-09 14:48:11 +00:00
GstClockTime smallest_ts_offset;
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
GstClockTime ts_offset;
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
GstClockTime end_offset;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GList *pads;
GCond inactive_cond;
GMutex lock;
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
GMutex type_lock;
splitmuxsrc: Fix some deadlock conditions and a crash 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.
2020-03-23 13:23:24 +00:00
GMutex msg_lock;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GstSplitMuxPartReaderPadCb get_pad_cb;
splitmuxsrc: Add add-fragment signal and examples Add a signal that allows adding fragments with a specific offset and duration directly to splitmuxsrc's list. By providing the fragment's offset on the playback timeline and duration directly, splitmuxsrc doesn't need to measure the fragment making for faster startup times. Add a bus message that's published when fragments are measured, reporting the offset and duration, so they can be cached by an application and used on future invocations. Add examples for handling the bus message and using the 'add-fragment' signal. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-03 13:41:03 +00:00
GstSplitMuxPartReaderMeasuredCb measured_cb;
splitmuxsrc: Add num-lookahead property Add a `num-lookahead` property that will 'prepare' a number of fragments in advance of the playhead if they have been deactivated or closed by a limited number of `num-open-fragments`. It can help to avoid any play stalls reading the indexes or headers of the next file from high-latency media or on resource limited machines. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 08:45:15 +00:00
GstSplitMuxPartReaderLoadedCb loaded_cb;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gpointer cb_data;
};
struct _GstSplitMuxPartReaderClass
{
GstPipelineClass parent_class;
void (*prepared) (GstSplitMuxPartReader *reader);
void (*end_of_part) (GstSplitMuxPartReader *reader);
};
GType gst_splitmux_part_reader_get_type (void);
splitmuxsrc: Rename some internal terminology A part reader can be 'loaded' (prepared, but not currently outputting anything) or 'playing' (actively being used to output data) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 15:26:51 +00:00
gboolean gst_splitmux_part_reader_is_loaded (GstSplitMuxPartReader *part);
gboolean gst_splitmux_part_reader_is_playing (GstSplitMuxPartReader *part);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
void gst_splitmux_part_reader_set_callbacks (GstSplitMuxPartReader *reader,
splitmuxsrc: Add num-lookahead property Add a `num-lookahead` property that will 'prepare' a number of fragments in advance of the playhead if they have been deactivated or closed by a limited number of `num-open-fragments`. It can help to avoid any play stalls reading the indexes or headers of the next file from high-latency media or on resource limited machines. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-15 08:45:15 +00:00
gpointer cb_data, GstSplitMuxPartReaderPadCb get_pad_cb, GstSplitMuxPartReaderMeasuredCb measured_cb,
GstSplitMuxPartReaderLoadedCb loaded_cb);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gboolean gst_splitmux_part_reader_prepare (GstSplitMuxPartReader *part);
void gst_splitmux_part_reader_unprepare (GstSplitMuxPartReader *part);
void gst_splitmux_part_reader_set_location (GstSplitMuxPartReader *reader,
const gchar *path);
splitmuxsrc: Add add-fragment signal and examples Add a signal that allows adding fragments with a specific offset and duration directly to splitmuxsrc's list. By providing the fragment's offset on the playback timeline and duration directly, splitmuxsrc doesn't need to measure the fragment making for faster startup times. Add a bus message that's published when fragments are measured, reporting the offset and duration, so they can be cached by an application and used on future invocations. Add examples for handling the bus message and using the 'add-fragment' signal. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-03 13:41:03 +00:00
gboolean gst_splitmux_part_reader_needs_measuring (GstSplitMuxPartReader *reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gboolean gst_splitmux_part_is_eos (GstSplitMuxPartReader *reader);
splitmuxsrc: Pass seek flags when activating. Pass all seek flags when activating a part based on a seek, so that SNAP flags are preserved.
2016-12-28 11:49:27 +00:00
gboolean gst_splitmux_part_reader_activate (GstSplitMuxPartReader *part, GstSegment *seg, GstSeekFlags extra_flags);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
void gst_splitmux_part_reader_deactivate (GstSplitMuxPartReader *part);
splitmuxsrc: Add num-open-fragments property Add a property to limit the number of parts splitmux will open simultaneously. Modify the part handling to support deactivating and reactivating the demuxing for each part. The default is '0', to preserve the existing behaviour of opening all parts at the beginning. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-04-29 14:33:35 +00:00
void gst_splitmux_part_reader_stop (GstSplitMuxPartReader *part);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gboolean gst_splitmux_part_reader_src_query (GstSplitMuxPartReader *part, GstPad *src_pad, GstQuery * query);
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
void gst_splitmux_part_reader_set_start_offset (GstSplitMuxPartReader *part, GstClockTime time_offset, GstClockTime ts_offset);
splitmuxsrc: Add add-fragment signal and examples Add a signal that allows adding fragments with a specific offset and duration directly to splitmuxsrc's list. By providing the fragment's offset on the playback timeline and duration directly, splitmuxsrc doesn't need to measure the fragment making for faster startup times. Add a bus message that's published when fragments are measured, reporting the offset and duration, so they can be cached by an application and used on future invocations. Add examples for handling the bus message and using the 'add-fragment' signal. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7053>
2024-05-03 13:41:03 +00:00
void gst_splitmux_part_reader_set_duration (GstSplitMuxPartReader *part, GstClockTime duration);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GstClockTime gst_splitmux_part_reader_get_start_offset (GstSplitMuxPartReader *part);
GstClockTime gst_splitmux_part_reader_get_end_offset (GstSplitMuxPartReader *part);
GstClockTime gst_splitmux_part_reader_get_duration (GstSplitMuxPartReader * reader);
GstPad *gst_splitmux_part_reader_lookup_pad (GstSplitMuxPartReader *reader, GstPad *target);
GstFlowReturn gst_splitmux_part_reader_pop (GstSplitMuxPartReader *reader, GstPad *part_pad, GstDataQueueItem ** item);
G_END_DECLS
#endif
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