mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-29 21:21:12 +00:00
0ef396359c
And change lengths and indices from guint to gsize for a more correct type. Also deprecate GstQueueArray and implement it in terms of GstVecDeque. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6779>
488 lines
14 KiB
C
488 lines
14 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_H_
|
|
#define _GST_ADAPTIVE_DEMUX_H_
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstqueuearray.h>
|
|
#include <gst/app/gstappsrc.h>
|
|
#include "downloadhelper.h"
|
|
#include "downloadrequest.h"
|
|
|
|
#include "gstadaptivedemuxutils.h"
|
|
|
|
#include "gstadaptivedemux-types.h"
|
|
#include "gstadaptivedemux-stream.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* GST_ADAPTIVE_DEMUX_SINK_NAME:
|
|
*
|
|
* The name of the templates for the sink pad.
|
|
*/
|
|
#define GST_ADAPTIVE_DEMUX_SINK_NAME "sink"
|
|
|
|
/**
|
|
* GST_ADAPTIVE_DEMUX_SINK_PAD:
|
|
* @obj: a #GstAdaptiveDemux
|
|
*
|
|
* Gives the pointer to the sink #GstPad object of the element.
|
|
*/
|
|
#define GST_ADAPTIVE_DEMUX_SINK_PAD(obj) (((GstAdaptiveDemux *) (obj))->sinkpad)
|
|
|
|
#define GST_ADAPTIVE_DEMUX_IN_TRICKMODE_KEY_UNITS(obj) ((((GstAdaptiveDemux*)(obj))->segment.flags & GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS) == GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS)
|
|
|
|
/**
|
|
* GST_ADAPTIVE_DEMUX_STATISTICS_MESSAGE_NAME:
|
|
*
|
|
* Name of the ELEMENT type messages posted by dashdemux with statistics.
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
#define GST_ADAPTIVE_DEMUX_STATISTICS_MESSAGE_NAME "adaptive-streaming-statistics"
|
|
|
|
#define GST_ELEMENT_ERROR_FROM_ERROR(el, msg, err) G_STMT_START { \
|
|
gchar *__dbg = g_strdup_printf ("%s: %s", msg, err->message); \
|
|
GST_WARNING_OBJECT (el, "error: %s", __dbg); \
|
|
gst_element_message_full (GST_ELEMENT(el), GST_MESSAGE_ERROR, \
|
|
err->domain, err->code, \
|
|
NULL, __dbg, __FILE__, GST_FUNCTION, __LINE__); \
|
|
g_clear_error (&err); \
|
|
} G_STMT_END
|
|
|
|
/* DEPRECATED */
|
|
#define GST_ADAPTIVE_DEMUX_FLOW_END_OF_FRAGMENT GST_FLOW_CUSTOM_SUCCESS_1
|
|
|
|
/* Current fragment download should be aborted and restarted. The parent class
|
|
* will call ::update_fragment_info() on the stream again to get the updated information.
|
|
*/
|
|
#define GST_ADAPTIVE_DEMUX_FLOW_RESTART_FRAGMENT GST_FLOW_CUSTOM_SUCCESS_2
|
|
|
|
/* The live stream has lost synchronization and the demuxer needs to be resetted */
|
|
#define GST_ADAPTIVE_DEMUX_FLOW_LOST_SYNC GST_FLOW_CUSTOM_SUCCESS_2 + 1
|
|
|
|
/* The stream sub-class is busy and can't supply information for
|
|
* ::update_fragment_info() right now */
|
|
#define GST_ADAPTIVE_DEMUX_FLOW_BUSY (GST_FLOW_CUSTOM_SUCCESS_2 + 3)
|
|
|
|
typedef struct _GstAdaptiveDemuxPrivate GstAdaptiveDemuxPrivate;
|
|
|
|
struct _GstAdaptiveDemuxTrack
|
|
{
|
|
gint ref_count;
|
|
|
|
/* Demux */
|
|
GstAdaptiveDemux *demux;
|
|
|
|
/* Stream type */
|
|
GstStreamType type;
|
|
|
|
/* Stream flags */
|
|
GstStreamFlags flags;
|
|
|
|
/* Unique identifier (for naming and debugging) */
|
|
gchar *id;
|
|
|
|
/* Unique identifier */
|
|
gchar *stream_id;
|
|
|
|
/* Period number this track belongs
|
|
* to (MAXINT if not assigned to a period yet)
|
|
*/
|
|
guint period_num;
|
|
|
|
/* Unique identifier of the internal stream produced
|
|
* by parsebin for the Stream this track comes from */
|
|
gchar *upstream_stream_id;
|
|
|
|
/* Generic *elementary stream* caps */
|
|
GstCaps *generic_caps;
|
|
|
|
/* Generic metadata */
|
|
GstTagList *tags;
|
|
|
|
/* The stream object */
|
|
GstStream *stream_object;
|
|
|
|
/* If TRUE, this track should be filled */
|
|
gboolean selected;
|
|
|
|
/* If TRUE, this track is currently being outputted */
|
|
gboolean active;
|
|
|
|
/* If TRUE, it is no longer selected but still being outputted. */
|
|
gboolean draining;
|
|
|
|
/* FIXME : Replace by actual track element */
|
|
GstElement *element;
|
|
|
|
/* The level at which 100% buffering is achieved */
|
|
GstClockTime buffering_threshold;
|
|
|
|
/* The sinkpad receives parsed elementary stream */
|
|
GstPad *sinkpad;
|
|
|
|
/* The pending parsebin source pad (used in case streams from parsebin get updated) (ref taken) */
|
|
GstPad *pending_srcpad;
|
|
|
|
/* Data storage */
|
|
GstVecDeque *queue;
|
|
|
|
/* Sticky event storage for this track */
|
|
GstEventStore sticky_events;
|
|
|
|
/* ============== */
|
|
/* Input tracking */
|
|
|
|
/* The track received EOS */
|
|
gboolean eos;
|
|
|
|
/* Input segment and time (in running time) */
|
|
GstSegment input_segment;
|
|
GstClockTimeDiff input_time;
|
|
GstClockTimeDiff lowest_input_time;
|
|
guint64 input_segment_seqnum;
|
|
|
|
/* ================= */
|
|
/* Contents tracking */
|
|
|
|
/* Current level of queue in bytes and time */
|
|
guint64 level_bytes;
|
|
GstClockTime level_time;
|
|
|
|
/* =============== */
|
|
/* Output tracking */
|
|
|
|
/* Is the output thread waiting for data on this track ? */
|
|
gboolean waiting_add;
|
|
|
|
/* If TRUE, the next pending GstSegment running time should be updated to the
|
|
* time stored in update_next_segment_run_ts */
|
|
gboolean update_next_segment;
|
|
|
|
/* Output segment and time (in running time) */
|
|
GstSegment output_segment;
|
|
GstClockTimeDiff output_time;
|
|
|
|
/* Track position and duration for emitting gap
|
|
* events */
|
|
GstClockTime gap_position;
|
|
GstClockTime gap_duration;
|
|
|
|
/* Next running time position pending in queue */
|
|
GstClockTimeDiff next_position;
|
|
|
|
/* If the next output buffer should be marked discont */
|
|
gboolean output_discont;
|
|
};
|
|
|
|
/**
|
|
* GstAdaptiveDemuxPeriod:
|
|
*
|
|
* The opaque #GstAdaptiveDemuxPeriod data structure. */
|
|
struct _GstAdaptiveDemuxPeriod
|
|
{
|
|
gint ref_count;
|
|
|
|
GstAdaptiveDemux *demux;
|
|
|
|
/* TRUE if the streams of this period were prepared and can be started */
|
|
gboolean prepared;
|
|
|
|
|
|
/* TRUE if there is another period after this one */
|
|
gboolean has_next_period;
|
|
|
|
/* An increasing unique identifier for the period.
|
|
*
|
|
* Note: unrelated to dash period id (which can be identical across
|
|
* periods) */
|
|
guint period_num;
|
|
|
|
/* The list of GstAdaptiveDemux2Stream (ref hold) */
|
|
GList *streams;
|
|
|
|
/* Current collection */
|
|
GstStreamCollection *collection;
|
|
|
|
/* List of available GstAdaptiveDemuxTrack (ref hold) */
|
|
GList *tracks;
|
|
|
|
/* Whether tracks were changed and need re-matching against outputs */
|
|
gboolean tracks_changed;
|
|
|
|
/* The time at which to wake up input streams for more
|
|
* data - the earliest of all waiting input stream thresholds,
|
|
* or GST_CLOCK_STIME_NONE if noone is waiting */
|
|
GstClockTimeDiff next_input_wakeup_time;
|
|
};
|
|
|
|
/**
|
|
* GstAdaptiveDemux:
|
|
*
|
|
* The opaque #GstAdaptiveDemux data structure.
|
|
*/
|
|
struct _GstAdaptiveDemux
|
|
{
|
|
/*< private >*/
|
|
GstBin bin;
|
|
|
|
gint running;
|
|
|
|
/*< protected >*/
|
|
GstPad *sinkpad;
|
|
|
|
DownloadHelper *download_helper;
|
|
|
|
/* Protected by TRACKS_LOCK */
|
|
/* Period used for output */
|
|
GstAdaptiveDemuxPeriod *output_period;
|
|
|
|
/* Period used for input */
|
|
GstAdaptiveDemuxPeriod *input_period;
|
|
|
|
GstSegment segment;
|
|
gdouble instant_rate_multiplier; /* 1.0 by default, or from instant-rate seek */
|
|
|
|
gchar *manifest_uri;
|
|
gchar *manifest_base_uri;
|
|
|
|
/* Properties */
|
|
gfloat bandwidth_target_ratio; /* ratio of the available bitrate to use */
|
|
guint connection_speed; /* Available / bandwidth to use set by the application */
|
|
guint min_bitrate; /* Minimum bitrate to choose */
|
|
guint max_bitrate; /* Maximum bitrate to choose */
|
|
|
|
guint current_download_rate; /* Current estimate of download bitrate */
|
|
|
|
/* Buffering levels */
|
|
GstClockTime max_buffering_time;
|
|
GstClockTime buffering_high_watermark_time;
|
|
GstClockTime buffering_low_watermark_time;
|
|
gdouble buffering_high_watermark_fragments;
|
|
gdouble buffering_low_watermark_fragments;
|
|
|
|
/* video/audio buffer level as minimum of the appropriate streams */
|
|
GstClockTime current_level_time_video;
|
|
GstClockTime current_level_time_audio;
|
|
|
|
gboolean have_group_id;
|
|
guint group_id;
|
|
|
|
guint next_stream_id;
|
|
|
|
/* Realtime clock */
|
|
GstAdaptiveDemuxClock *realtime_clock;
|
|
|
|
/* < private > */
|
|
GstAdaptiveDemuxPrivate *priv;
|
|
};
|
|
|
|
/**
|
|
* GstAdaptiveDemuxClass:
|
|
*
|
|
*/
|
|
struct _GstAdaptiveDemuxClass
|
|
{
|
|
/*< private >*/
|
|
GstBinClass bin_class;
|
|
|
|
/*< public >*/
|
|
|
|
/**
|
|
* process_manifest: Parse the manifest
|
|
* @demux: #GstAdaptiveDemux
|
|
* @manifest: the manifest to be parsed
|
|
*
|
|
* Parse the manifest and add the created streams using
|
|
* gst_adaptive_demux2_stream_new()
|
|
*
|
|
* Returns: %TRUE if successful
|
|
*/
|
|
gboolean (*process_manifest) (GstAdaptiveDemux * demux, GstBuffer * manifest);
|
|
|
|
/**
|
|
* get_manifest_update_interval:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Used during live streaming, the subclass should return the interval
|
|
* between successive manifest updates
|
|
*
|
|
* Returns: the update interval in microseconds
|
|
*/
|
|
gint64 (*get_manifest_update_interval) (GstAdaptiveDemux * demux);
|
|
|
|
/**
|
|
* update_manifest:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* During live streaming, this will be called for the subclass to update its
|
|
* manifest with the new version. By default it fetches the manifest URI
|
|
* and passes it to GstAdaptiveDemux::update_manifest_data().
|
|
*
|
|
* Returns: #GST_FLOW_OK is all succeeded, #GST_FLOW_EOS if the stream ended
|
|
* or #GST_FLOW_ERROR if an error happened
|
|
*/
|
|
GstFlowReturn (*update_manifest) (GstAdaptiveDemux * demux);
|
|
|
|
/**
|
|
* update_manifest_data:
|
|
* @demux: #GstAdaptiveDemux
|
|
* @buf: Downloaded manifest data
|
|
*
|
|
* During live streaming, this will be called for the subclass to update its
|
|
* manifest with the new version
|
|
*
|
|
* Returns: #GST_FLOW_OK is all succeeded, #GST_FLOW_EOS if the stream ended
|
|
* or #GST_FLOW_ERROR if an error happened
|
|
*/
|
|
GstFlowReturn (*update_manifest_data) (GstAdaptiveDemux * demux, GstBuffer * buf);
|
|
|
|
gboolean (*is_live) (GstAdaptiveDemux * demux);
|
|
GstClockTime (*get_duration) (GstAdaptiveDemux * demux);
|
|
|
|
/**
|
|
* reset:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Reset the internal state of the subclass, getting ready to restart with
|
|
* a new stream afterwards
|
|
*/
|
|
void (*reset) (GstAdaptiveDemux * demux);
|
|
|
|
/**
|
|
* seek:
|
|
* @demux: #GstAdaptiveDemux
|
|
* @seek: a seek #GstEvent
|
|
*
|
|
* The demuxer should seek on all its streams to the specified position
|
|
* in the seek event
|
|
*
|
|
* Returns: %TRUE if successful
|
|
*/
|
|
gboolean (*seek) (GstAdaptiveDemux * demux, GstEvent * seek);
|
|
|
|
/**
|
|
* has_next_period:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Checks if there is a next period following the current one.
|
|
* DASH can have multiple medias chained in its manifest, when one finishes
|
|
* this function is called to verify if there is a new period to be played
|
|
* in sequence.
|
|
*
|
|
* Returns: %TRUE if there is another period
|
|
*/
|
|
gboolean (*has_next_period) (GstAdaptiveDemux * demux);
|
|
/**
|
|
* advance_period:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Advances the manifest to the next period. New streams should be created
|
|
* using gst_adaptive_demux2_stream_new().
|
|
*/
|
|
void (*advance_period) (GstAdaptiveDemux * demux);
|
|
|
|
/**
|
|
* get_live_seek_range:
|
|
* @demux: #GstAdaptiveDemux
|
|
* @start: pointer to put the start position allowed to seek to
|
|
* @stop: pointer to put the stop position allowed to seek to
|
|
*
|
|
* Gets the allowed seek start and stop positions for the current live stream
|
|
*
|
|
* Return: %TRUE if successful
|
|
*/
|
|
gboolean (*get_live_seek_range) (GstAdaptiveDemux * demux, gint64 * start, gint64 * stop);
|
|
|
|
/**
|
|
* get_period_start_time:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Gets the start time of the current period. Timestamps are resetting to 0
|
|
* after each period but we have to maintain a continuous stream and running
|
|
* time so need to know the start time of the current period.
|
|
*
|
|
* Return: a #GstClockTime representing the start time of the currently
|
|
* selected period.
|
|
*/
|
|
GstClockTime (*get_period_start_time) (GstAdaptiveDemux *demux);
|
|
|
|
/**
|
|
* requires_periodical_playlist_update:
|
|
* @demux: #GstAdaptiveDemux
|
|
*
|
|
* Some adaptive streaming protocols allow the client to download
|
|
* the playlist once and build up the fragment list based on the
|
|
* current fragment metadata. For those protocols the demuxer
|
|
* doesn't need to periodically refresh the playlist. This vfunc
|
|
* is relevant only for live playback scenarios.
|
|
*
|
|
* Return: %TRUE if the playlist needs to be refreshed periodically by the demuxer.
|
|
*/
|
|
gboolean (*requires_periodical_playlist_update) (GstAdaptiveDemux * demux);
|
|
};
|
|
|
|
GType gst_adaptive_demux_ng_get_type (void);
|
|
|
|
gboolean gst_adaptive_demux2_add_stream (GstAdaptiveDemux *demux,
|
|
GstAdaptiveDemux2Stream *stream);
|
|
|
|
gboolean gst_adaptive_demux2_stream_add_track (GstAdaptiveDemux2Stream *stream,
|
|
GstAdaptiveDemuxTrack *track);
|
|
|
|
GstAdaptiveDemuxTrack *gst_adaptive_demux_track_new (GstAdaptiveDemux *demux,
|
|
GstStreamType type,
|
|
GstStreamFlags flags,
|
|
gchar *stream_id,
|
|
GstCaps *caps,
|
|
GstTagList *tags);
|
|
GstAdaptiveDemuxTrack *gst_adaptive_demux_track_ref (GstAdaptiveDemuxTrack *track);
|
|
void gst_adaptive_demux_track_unref (GstAdaptiveDemuxTrack *track);
|
|
|
|
const gchar *gst_adaptive_demux_get_manifest_ref_uri (GstAdaptiveDemux * demux);
|
|
|
|
gboolean gst_adaptive_demux_start_new_period (GstAdaptiveDemux * demux);
|
|
|
|
GstClockTime gst_adaptive_demux2_get_monotonic_time (GstAdaptiveDemux * demux);
|
|
GDateTime *gst_adaptive_demux2_get_client_now_utc (GstAdaptiveDemux * demux);
|
|
|
|
gboolean gst_adaptive_demux2_is_running (GstAdaptiveDemux * demux);
|
|
|
|
GstClockTime gst_adaptive_demux2_get_qos_earliest_time (GstAdaptiveDemux *demux);
|
|
|
|
GstCaps * gst_codec_utils_caps_from_iso_rfc6831 (gchar * codec);
|
|
|
|
gdouble gst_adaptive_demux_play_rate (GstAdaptiveDemux *demux);
|
|
|
|
void gst_adaptive_demux2_manual_manifest_update (GstAdaptiveDemux * demux);
|
|
GstAdaptiveDemuxLoop *gst_adaptive_demux_get_loop (GstAdaptiveDemux *demux);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|
|
|