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64fd2b265f
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>
146 lines
5.2 KiB
C
146 lines
5.2 KiB
C
/* GStreamer Split Muxed File Source - Part reader
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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_PART_READER_H__
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#define __GST_SPLITMUX_PART_READER_H__
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#include <gst/gst.h>
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#include <gst/base/gstdataqueue.h>
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G_BEGIN_DECLS
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#define GST_TYPE_SPLITMUX_PART_READER \
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(gst_splitmux_part_reader_get_type())
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#define GST_SPLITMUX_PART_READER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPLITMUX_PART_READER,GstSplitMuxSrc))
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#define GST_SPLITMUX_PART_READER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPLITMUX_PART_READER,GstSplitMuxSrcClass))
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#define GST_IS_SPLITMUX_PART_READER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPLITMUX_PART_READER))
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#define GST_IS_SPLITMUX_PART_READER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPLITMUX_PART_READER))
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typedef struct _GstSplitMuxPartReader GstSplitMuxPartReader;
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typedef struct _GstSplitMuxPartReaderClass GstSplitMuxPartReaderClass;
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typedef struct _GstSplitMuxPartReaderInfo GstSplitMuxPartReaderInfo;
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typedef struct _SplitMuxSrcPad SplitMuxSrcPad;
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typedef struct _SplitMuxSrcPadClass SplitMuxSrcPadClass;
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typedef enum
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{
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PART_STATE_NULL,
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PART_STATE_PREPARING_COLLECT_STREAMS,
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PART_STATE_PREPARING_MEASURE_STREAMS,
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PART_STATE_PREPARING_RESET_FOR_READY,
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PART_STATE_READY,
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PART_STATE_FAILED,
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} GstSplitMuxPartState;
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typedef GstPad *(*GstSplitMuxPartReaderPadCb)(GstSplitMuxPartReader *reader, GstPad *src_pad, gpointer cb_data);
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typedef void (*GstSplitMuxPartReaderMeasuredCb)(GstSplitMuxPartReader *reader, const gchar *filename, GstClockTime offset, GstClockTime duration, gpointer cb_data);
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typedef void (*GstSplitMuxPartReaderLoadedCb)(GstSplitMuxPartReader *reader, gpointer cb_data);
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struct _GstSplitMuxPartReaderInfo
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{
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GstClockTime duration;
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GstClockTime start_offset;
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};
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struct _GstSplitMuxPartReader
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{
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GstPipeline parent;
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GstSplitMuxPartState prep_state;
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gboolean need_duration_measuring;
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gchar *path;
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GstElement *src;
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GstElement *typefind;
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GstElement *demux;
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gboolean async_pending;
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gboolean loaded;
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gboolean playing;
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gboolean prepared;
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gboolean flushing;
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gboolean no_more_pads;
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GstSplitMuxPartReaderInfo info;
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GstClockTime smallest_ts_offset;
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GstClockTime ts_offset;
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GstClockTime end_offset;
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GList *pads;
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GCond inactive_cond;
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GMutex lock;
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GMutex type_lock;
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GMutex msg_lock;
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GstSplitMuxPartReaderPadCb get_pad_cb;
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GstSplitMuxPartReaderMeasuredCb measured_cb;
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GstSplitMuxPartReaderLoadedCb loaded_cb;
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gpointer cb_data;
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};
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struct _GstSplitMuxPartReaderClass
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{
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GstPipelineClass parent_class;
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void (*prepared) (GstSplitMuxPartReader *reader);
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void (*end_of_part) (GstSplitMuxPartReader *reader);
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};
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GType gst_splitmux_part_reader_get_type (void);
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gboolean gst_splitmux_part_reader_is_loaded (GstSplitMuxPartReader *part);
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gboolean gst_splitmux_part_reader_is_playing (GstSplitMuxPartReader *part);
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void gst_splitmux_part_reader_set_callbacks (GstSplitMuxPartReader *reader,
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gpointer cb_data, GstSplitMuxPartReaderPadCb get_pad_cb, GstSplitMuxPartReaderMeasuredCb measured_cb,
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GstSplitMuxPartReaderLoadedCb loaded_cb);
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gboolean gst_splitmux_part_reader_prepare (GstSplitMuxPartReader *part);
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void gst_splitmux_part_reader_unprepare (GstSplitMuxPartReader *part);
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void gst_splitmux_part_reader_set_location (GstSplitMuxPartReader *reader,
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const gchar *path);
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gboolean gst_splitmux_part_reader_needs_measuring (GstSplitMuxPartReader *reader);
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gboolean gst_splitmux_part_is_eos (GstSplitMuxPartReader *reader);
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gboolean gst_splitmux_part_reader_activate (GstSplitMuxPartReader *part, GstSegment *seg, GstSeekFlags extra_flags);
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void gst_splitmux_part_reader_deactivate (GstSplitMuxPartReader *part);
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void gst_splitmux_part_reader_stop (GstSplitMuxPartReader *part);
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gboolean gst_splitmux_part_reader_src_query (GstSplitMuxPartReader *part, GstPad *src_pad, GstQuery * query);
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void gst_splitmux_part_reader_set_start_offset (GstSplitMuxPartReader *part, GstClockTime time_offset, GstClockTime ts_offset);
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void gst_splitmux_part_reader_set_duration (GstSplitMuxPartReader *part, GstClockTime duration);
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GstClockTime gst_splitmux_part_reader_get_start_offset (GstSplitMuxPartReader *part);
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GstClockTime gst_splitmux_part_reader_get_end_offset (GstSplitMuxPartReader *part);
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GstClockTime gst_splitmux_part_reader_get_duration (GstSplitMuxPartReader * reader);
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GstPad *gst_splitmux_part_reader_lookup_pad (GstSplitMuxPartReader *reader, GstPad *target);
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GstFlowReturn gst_splitmux_part_reader_pop (GstSplitMuxPartReader *reader, GstPad *part_pad, GstDataQueueItem ** item);
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G_END_DECLS
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#endif
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