mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 12:56:33 +00:00
176b884ec7
The various fields this was protecting were for the legacy design. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5113>
254 lines
10 KiB
C
254 lines
10 KiB
C
/* GStreamer
|
|
*
|
|
* Copyright (C) 2014 Samsung Electronics. All rights reserved.
|
|
* Author: Thiago Santos <thiagoss@osg.samsung.com>
|
|
*
|
|
* Copyright (C) 2021-2022 Centricular Ltd
|
|
* Author: Edward Hervey <edward@centricular.com>
|
|
* Author: 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_ADAPTIVE_DEMUX_PRIVATE_H_
|
|
#define _GST_ADAPTIVE_DEMUX_PRIVATE_H_
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
#include <gst/base/gstflowcombiner.h>
|
|
|
|
#include "gstadaptivedemux-types.h"
|
|
#include "gstadaptivedemux.h"
|
|
#include "gstadaptivedemuxutils.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define NUM_LOOKBACK_FRAGMENTS 3
|
|
#define MAX_DOWNLOAD_ERROR_COUNT 3
|
|
|
|
/* Internal, so not using GST_FLOW_CUSTOM_SUCCESS_N */
|
|
#define GST_ADAPTIVE_DEMUX_FLOW_SWITCH (GST_FLOW_CUSTOM_SUCCESS_2 + 2)
|
|
|
|
#define TRACKS_GET_LOCK(d) (&GST_ADAPTIVE_DEMUX_CAST(d)->priv->tracks_lock)
|
|
#define TRACKS_LOCK(d) g_mutex_lock (TRACKS_GET_LOCK (d))
|
|
#define TRACKS_UNLOCK(d) g_mutex_unlock (TRACKS_GET_LOCK (d))
|
|
|
|
#define BUFFERING_GET_LOCK(d) (&GST_ADAPTIVE_DEMUX_CAST(d)->priv->buffering_lock)
|
|
#define BUFFERING_LOCK(d) g_mutex_lock (BUFFERING_GET_LOCK (d))
|
|
#define BUFFERING_UNLOCK(d) g_mutex_unlock (BUFFERING_GET_LOCK (d))
|
|
|
|
#define GST_MANIFEST_GET_LOCK(d) (&(GST_ADAPTIVE_DEMUX_CAST(d)->priv->manifest_lock))
|
|
#define GST_MANIFEST_LOCK(d) G_STMT_START { \
|
|
GST_TRACE("Locking manifest from thread %p", g_thread_self()); \
|
|
g_rec_mutex_lock (GST_MANIFEST_GET_LOCK (d)); \
|
|
GST_TRACE("Locked manifest from thread %p", g_thread_self()); \
|
|
} G_STMT_END
|
|
|
|
#define GST_MANIFEST_UNLOCK(d) G_STMT_START { \
|
|
GST_TRACE("Unlocking manifest from thread %p", g_thread_self()); \
|
|
g_rec_mutex_unlock (GST_MANIFEST_GET_LOCK (d)); \
|
|
} G_STMT_END
|
|
|
|
#define GST_ADAPTIVE_DEMUX_GET_SCHEDULER(d) (GST_ADAPTIVE_DEMUX_CAST(d)->priv->scheduler_task)
|
|
|
|
#define GST_ADAPTIVE_SCHEDULER_LOCK(d) gst_adaptive_demux_scheduler_lock(demux)
|
|
#define GST_ADAPTIVE_SCHEDULER_UNLOCK(d) G_STMT_START { \
|
|
GST_TRACE("Unlocking scheduler from thread %p", g_thread_self()); \
|
|
gst_adaptive_demux_loop_unlock_and_unpause (GST_ADAPTIVE_DEMUX_GET_SCHEDULER (d)); \
|
|
} G_STMT_END
|
|
|
|
#define GST_ADAPTIVE_DEMUX_SEGMENT_GET_LOCK(d) (&GST_ADAPTIVE_DEMUX_CAST(d)->priv->segment_lock)
|
|
#define GST_ADAPTIVE_DEMUX_SEGMENT_LOCK(d) g_mutex_lock (GST_ADAPTIVE_DEMUX_SEGMENT_GET_LOCK (d))
|
|
#define GST_ADAPTIVE_DEMUX_SEGMENT_UNLOCK(d) g_mutex_unlock (GST_ADAPTIVE_DEMUX_SEGMENT_GET_LOCK (d))
|
|
|
|
struct _GstAdaptiveDemuxPrivate
|
|
{
|
|
GstAdapter *input_adapter; /* protected by manifest_lock */
|
|
gint have_manifest; /* MT safe */
|
|
|
|
/* Adaptive scheduling and parsing task */
|
|
GstAdaptiveDemuxLoop *scheduler_task;
|
|
|
|
/* Callback / timer id for the next manifest update */
|
|
guint manifest_updates_cb;
|
|
gboolean manifest_updates_enabled;
|
|
gboolean need_manual_manifest_update;
|
|
|
|
/* Count of failed manifest updates */
|
|
gint update_failed_count;
|
|
|
|
guint32 segment_seqnum; /* protected by manifest_lock */
|
|
|
|
/* main lock used to protect adaptive demux and all its streams.
|
|
* It serializes the adaptive demux public API.
|
|
*/
|
|
GRecMutex manifest_lock;
|
|
|
|
/* Duration, updated after manifest updates */
|
|
GstClockTime duration;
|
|
|
|
/* Set to TRUE if any stream is waiting on the manifest update */
|
|
gboolean stream_waiting_for_manifest;
|
|
|
|
/* Set to TRUE if streams can download fragment data. If FALSE,
|
|
* they can load playlists / prepare for updata_fragment_info()
|
|
*/
|
|
gboolean streams_can_download_fragments;
|
|
|
|
/* Protects demux and stream segment information
|
|
* Needed because seeks can update segment information
|
|
* without needing to stop tasks when they just want to
|
|
* update the segment boundaries */
|
|
GMutex segment_lock;
|
|
|
|
GstClockTime qos_earliest_time;
|
|
|
|
/* Protects all tracks and period content */
|
|
GMutex tracks_lock;
|
|
/* Used to notify addition to a waiting (i.e. previously empty) track */
|
|
GCond tracks_add;
|
|
/* TRUE if we are buffering */
|
|
gboolean is_buffering;
|
|
/* TRUE if percent changed and message should be posted */
|
|
gboolean percent_changed;
|
|
gint percent;
|
|
|
|
/* Serialises buffering message posting to avoid out-of-order
|
|
* posting */
|
|
GMutex buffering_lock;
|
|
|
|
/* Atomic */
|
|
guint32 requested_selection_seqnum;
|
|
|
|
/* Lock protecting all the following fields */
|
|
GRecMutex output_lock;
|
|
/* Output task */
|
|
GstTask *output_task;
|
|
/* List of enabled OutputSlot */
|
|
GList *outputs;
|
|
/* flow combiner of output slots */
|
|
GstFlowCombiner *flowcombiner;
|
|
/* protected by output_lock */
|
|
gboolean flushing;
|
|
/* Current output selection seqnum */
|
|
guint32 current_selection_seqnum;
|
|
/* Current output position (in running time) */
|
|
GstClockTime global_output_position;
|
|
/* End of fields protected by output_lock */
|
|
|
|
gint n_audio_streams, n_video_streams, n_subtitle_streams;
|
|
|
|
/* Counter used for uniquely identifying periods */
|
|
gint n_periods;
|
|
|
|
/* Array of periods.
|
|
*
|
|
* Head is the period being outputted, or to be outputted first
|
|
* Tail is where new streams get added */
|
|
GQueue *periods;
|
|
};
|
|
|
|
static inline gboolean gst_adaptive_demux_scheduler_lock(GstAdaptiveDemux *d)
|
|
{
|
|
GST_TRACE("Locking scheduler from thread %p", g_thread_self());
|
|
if (!gst_adaptive_demux_loop_pause_and_lock (GST_ADAPTIVE_DEMUX_GET_SCHEDULER (d)))
|
|
return FALSE;
|
|
|
|
GST_TRACE("Locked scheduler from thread %p", g_thread_self());
|
|
return TRUE;
|
|
}
|
|
|
|
void demux_update_buffering_locked (GstAdaptiveDemux * demux);
|
|
void demux_post_buffering_locked (GstAdaptiveDemux * demux);
|
|
|
|
GstFlowReturn gst_adaptive_demux_update_manifest (GstAdaptiveDemux *demux);
|
|
|
|
void gst_adaptive_demux2_stream_wants_manifest_update (GstAdaptiveDemux * demux);
|
|
|
|
void gst_adaptive_demux2_stream_parse_error (GstAdaptiveDemux2Stream *stream, GError * err);
|
|
GstClockTime gst_adaptive_demux2_stream_get_fragment_waiting_time (GstAdaptiveDemux2Stream * stream);
|
|
GstClockTime gst_adaptive_demux2_stream_get_presentation_offset (GstAdaptiveDemux2Stream * stream);
|
|
GstClockTime gst_adaptive_demux_get_period_start_time (GstAdaptiveDemux * demux);
|
|
|
|
gboolean gst_adaptive_demux_is_live (GstAdaptiveDemux * demux);
|
|
|
|
void gst_adaptive_demux2_stream_on_manifest_update (GstAdaptiveDemux2Stream * stream);
|
|
void gst_adaptive_demux2_stream_on_output_space_available (GstAdaptiveDemux2Stream *stream);
|
|
void gst_adaptive_demux2_stream_on_can_download_fragments(GstAdaptiveDemux2Stream *stream);
|
|
|
|
gboolean gst_adaptive_demux2_stream_has_next_fragment (GstAdaptiveDemux2Stream * stream);
|
|
GstFlowReturn gst_adaptive_demux2_stream_seek (GstAdaptiveDemux2Stream * stream,
|
|
gboolean forward, GstSeekFlags flags,
|
|
GstClockTimeDiff ts, GstClockTimeDiff * final_ts);
|
|
gboolean gst_adaptive_demux_get_live_seek_range (GstAdaptiveDemux * demux,
|
|
gint64 * range_start, gint64 * range_stop);
|
|
gboolean gst_adaptive_demux2_stream_in_live_seek_range (GstAdaptiveDemux * demux,
|
|
GstAdaptiveDemux2Stream * stream);
|
|
gboolean gst_adaptive_demux2_stream_is_selected_locked (GstAdaptiveDemux2Stream *stream);
|
|
gboolean gst_adaptive_demux2_stream_is_default_locked (GstAdaptiveDemux2Stream *stream);
|
|
|
|
gboolean gst_adaptive_demux_has_next_period (GstAdaptiveDemux * demux);
|
|
void gst_adaptive_demux_advance_period (GstAdaptiveDemux * demux);
|
|
|
|
GstFlowReturn gst_adaptive_demux2_stream_update_fragment_info (GstAdaptiveDemux2Stream * stream);
|
|
void gst_adaptive_demux2_stream_stop (GstAdaptiveDemux2Stream * stream);
|
|
|
|
gboolean gst_adaptive_demux_handle_lost_sync (GstAdaptiveDemux * demux);
|
|
|
|
typedef struct
|
|
{
|
|
GstMiniObject *item;
|
|
gsize size;
|
|
/* running time of item : GST_CLOCK_STIME_NONE for non-timed data */
|
|
GstClockTimeDiff runningtime;
|
|
/* GST_CLOCK_STIME_NONE for non-timed data */
|
|
GstClockTimeDiff runningtime_end;
|
|
/* running time of item for buffering tracking: GST_CLOCK_STIME_NONE for non-timed data */
|
|
GstClockTimeDiff runningtime_buffering;
|
|
} TrackQueueItem;
|
|
|
|
GstMiniObject * gst_adaptive_demux_track_dequeue_data_locked (GstAdaptiveDemux * demux, GstAdaptiveDemuxTrack * track, gboolean check_sticky_events);
|
|
void gst_adaptive_demux_track_flush (GstAdaptiveDemuxTrack * track);
|
|
void gst_adaptive_demux_track_drain_to (GstAdaptiveDemuxTrack * track, GstClockTime drain_running_time);
|
|
void gst_adaptive_demux_track_update_next_position (GstAdaptiveDemuxTrack * track);
|
|
void gst_adaptive_demux_track_update_level_locked (GstAdaptiveDemuxTrack * track);
|
|
|
|
/* Period functions */
|
|
GstAdaptiveDemuxPeriod * gst_adaptive_demux_period_new (GstAdaptiveDemux * demux);
|
|
|
|
GstAdaptiveDemuxPeriod * gst_adaptive_demux_period_ref (GstAdaptiveDemuxPeriod * period);
|
|
void gst_adaptive_demux_period_unref (GstAdaptiveDemuxPeriod * period);
|
|
|
|
gboolean gst_adaptive_demux_period_add_stream (GstAdaptiveDemuxPeriod * period,
|
|
GstAdaptiveDemux2Stream * stream);
|
|
gboolean gst_adaptive_demux_period_add_track (GstAdaptiveDemuxPeriod * period,
|
|
GstAdaptiveDemuxTrack * track);
|
|
gboolean gst_adaptive_demux_track_add_elements (GstAdaptiveDemuxTrack * track,
|
|
guint period_num);
|
|
|
|
void gst_adaptive_demux_period_select_default_tracks (GstAdaptiveDemux * demux,
|
|
GstAdaptiveDemuxPeriod * period);
|
|
void gst_adaptive_demux_period_transfer_selection (GstAdaptiveDemux * demux,
|
|
GstAdaptiveDemuxPeriod * next_period,
|
|
GstAdaptiveDemuxPeriod * current_period);
|
|
void gst_adaptive_demux_period_stop_tasks (GstAdaptiveDemuxPeriod * period);
|
|
GstFlowReturn gst_adaptive_demux_period_combine_stream_flows (GstAdaptiveDemuxPeriod * period);
|
|
|
|
gboolean gst_adaptive_demux_period_has_pending_tracks (GstAdaptiveDemuxPeriod * period);
|
|
void gst_adaptive_demux_period_check_input_wakeup_locked (GstAdaptiveDemuxPeriod * period, GstClockTimeDiff current_output_position);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|