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548bbc3147
Instead of returning a "const gchar" or a "gchar" that should not be freed, always return a duplicated string as those functions were used together with g_strdup anyway. This is needed to prepare support for returning modified strings in next commit. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1147>
172 lines
6.4 KiB
C
172 lines
6.4 KiB
C
/*
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* DASH MPD parsing library
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*
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* gstmpdparser.h
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*
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* Copyright (C) 2012 STMicroelectronics
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*
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* Authors:
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* Gianluca Gennari <gennarone@gmail.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 2.1 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 (COPYING); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MPDPARSER_H__
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#define __GST_MPDPARSER_H__
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#include <gst/gst.h>
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#include <gst/uridownloader/gsturidownloader.h>
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#include <gst/base/gstadapter.h>
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#include "gstmpdhelper.h"
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#include "gstxmlhelper.h"
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#include "gstmpdrootnode.h"
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#include "gstmpdbaseurlnode.h"
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#include "gstmpdutctimingnode.h"
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#include "gstmpdmetricsnode.h"
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#include "gstmpdmetricsrangenode.h"
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#include "gstmpdsnode.h"
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#include "gstmpdsegmenttimelinenode.h"
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#include "gstmpdsegmenttemplatenode.h"
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#include "gstmpdsegmenturlnode.h"
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#include "gstmpdsegmentlistnode.h"
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#include "gstmpdsegmentbasenode.h"
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#include "gstmpdperiodnode.h"
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#include "gstmpdrepresentationnode.h"
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#include "gstmpdsubrepresentationnode.h"
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#include "gstmpdcontentcomponentnode.h"
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#include "gstmpdadaptationsetnode.h"
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#include "gstmpdsubsetnode.h"
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#include "gstmpdprograminformationnode.h"
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#include "gstmpdlocationnode.h"
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#include "gstmpdreportingnode.h"
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#include "gstmpdurltypenode.h"
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#include "gstmpddescriptortypenode.h"
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#include "gstmpdrepresentationbasenode.h"
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#include "gstmpdmultsegmentbasenode.h"
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G_BEGIN_DECLS
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typedef struct _GstActiveStream GstActiveStream;
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typedef struct _GstStreamPeriod GstStreamPeriod;
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typedef struct _GstMediaFragmentInfo GstMediaFragmentInfo;
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typedef struct _GstMediaSegment GstMediaSegment;
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#define GST_MPD_DURATION_NONE ((guint64)-1)
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typedef enum
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{
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GST_STREAM_UNKNOWN,
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GST_STREAM_VIDEO, /* video stream (the main one) */
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GST_STREAM_AUDIO, /* audio stream (optional) */
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GST_STREAM_APPLICATION /* application stream (optional): for timed text/subtitles */
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} GstStreamMimeType;
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/**
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* GstStreamPeriod:
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*
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* Stream period data structure
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*/
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struct _GstStreamPeriod
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{
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GstMPDPeriodNode *period; /* Stream period */
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guint number; /* Period number */
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GstClockTime start; /* Period start time */
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GstClockTime duration; /* Period duration */
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};
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/**
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* GstMediaSegment:
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*
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* Media segment data structure
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*/
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struct _GstMediaSegment
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{
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GstMPDSegmentURLNode *SegmentURL; /* this is NULL when using a SegmentTemplate */
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guint number; /* segment number */
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gint repeat; /* number of extra repetitions (0 = played only once) */
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guint64 scale_start; /* start time in timescale units */
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guint64 scale_duration; /* duration in timescale units */
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GstClockTime start; /* segment start time */
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GstClockTime duration; /* segment duration */
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};
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struct _GstMediaFragmentInfo
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{
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gchar *uri;
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gint64 range_start;
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gint64 range_end;
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gchar *index_uri;
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gint64 index_range_start;
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gint64 index_range_end;
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gboolean discontinuity;
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GstClockTime timestamp;
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GstClockTime duration;
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};
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/**
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* GstActiveStream:
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*
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* Active stream data structure
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*/
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struct _GstActiveStream
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{
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GstStreamMimeType mimeType; /* video/audio/application */
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guint baseURL_idx; /* index of the baseURL used for last request */
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gchar *baseURL; /* active baseURL used for last request */
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gchar *queryURL; /* active queryURL used for last request */
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guint max_bandwidth; /* max bandwidth allowed for this mimeType */
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GstMPDAdaptationSetNode *cur_adapt_set; /* active adaptation set */
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gint representation_idx; /* index of current representation */
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GstMPDRepresentationNode *cur_representation; /* active representation */
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GstMPDSegmentBaseNode *cur_segment_base; /* active segment base */
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GstMPDSegmentListNode *cur_segment_list; /* active segment list */
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GstMPDSegmentTemplateNode *cur_seg_template; /* active segment template */
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gint segment_index; /* index of next sequence chunk */
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guint segment_repeat_index; /* index of the repeat count of a segment */
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GPtrArray *segments; /* array of GstMediaSegment */
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GstClockTime presentationTimeOffset; /* presentation time offset of the current segment */
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};
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/* MPD file parsing */
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gboolean gst_mpdparser_get_mpd_root_node (GstMPDRootNode ** mpd_root_node, const gchar * data, gint size);
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GstMPDSegmentListNode * gst_mpdparser_get_external_segment_list (const gchar * data, gint size, GstMPDSegmentListNode * parent);
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GList * gst_mpdparser_get_external_periods (const gchar * data, gint size);
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GList * gst_mpdparser_get_external_adaptation_sets (const gchar * data, gint size, GstMPDPeriodNode* period);
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/* navigation functions */
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GstStreamMimeType gst_mpdparser_representation_get_mimetype (GstMPDAdaptationSetNode * adapt_set, GstMPDRepresentationNode * rep);
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/* Memory management */
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void gst_mpdparser_free_stream_period (GstStreamPeriod * stream_period);
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void gst_mpdparser_free_media_segment (GstMediaSegment * media_segment);
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void gst_mpdparser_free_active_stream (GstActiveStream * active_stream);
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void gst_mpdparser_media_fragment_info_clear (GstMediaFragmentInfo * fragment);
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/* Active stream methods*/
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void gst_mpdparser_init_active_stream_segments (GstActiveStream * stream);
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gchar *gst_mpdparser_get_mediaURL (GstActiveStream * stream, GstMPDSegmentURLNode * segmentURL);
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gchar *gst_mpdparser_get_initializationURL (GstActiveStream * stream, GstMPDURLTypeNode * InitializationURL);
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gchar *gst_mpdparser_build_URL_from_template (const gchar * url_template, const gchar * id, guint number, guint bandwidth, guint64 time);
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G_END_DECLS
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#endif /* __GST_MPDPARSER_H__ */
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