gstreamer/subprojects/gst-plugins-good/ext/adaptivedemux2/hls/gsthlsdemux.h
2023-02-03 16:52:24 +00:00

169 lines
5.7 KiB
C

/* GStreamer
* Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@gmail.com>
* Copyright (C) 2010 Andoni Morales Alastruey <ylatuya@gmail.com>
* Copyright (C) 2015 Tim-Philipp Müller <tim@centricular.com>
*
* gsthlsdemux.h:
*
* 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_HLS_DEMUX_H__
#define __GST_HLS_DEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "m3u8.h"
#include "gstisoff.h"
#include "gstadaptivedemux.h"
G_BEGIN_DECLS
#define GST_TYPE_HLS_DEMUX2 \
(gst_hls_demux2_get_type())
#define GST_HLS_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_HLS_DEMUX2,GstHLSDemux))
#define GST_HLS_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_HLS_DEMUX2,GstHLSDemuxClass))
#define GST_IS_HLS_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_HLS_DEMUX2))
#define GST_IS_HLS_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_HLS_DEMUX2))
#define GST_HLS_DEMUX_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_HLS_DEMUX2,GstHLSDemuxClass))
#define GST_HLS_DEMUX_CAST(obj) \
((GstHLSDemux *)obj)
typedef struct _GstHLSDemux2 GstHLSDemux;
typedef struct _GstHLSDemux2Class GstHLSDemuxClass;
typedef struct _GstHLSDemuxStream GstHLSDemuxStream;
typedef enum {
/* More data is needed to parse the fragment */
GST_HLS_PARSER_RESULT_NEED_MORE_DATA,
/* An error happened, discard the fragment */
GST_HLS_PARSER_RESULT_ERROR,
/* Parsing suceeded, it no longer needs to be called for the fragment */
GST_HLS_PARSER_RESULT_DONE,
/* The fragment wasn't the expected one. Current data must be dropped and
* GST_ADAPTIVE_DEMUX_FLOW_RESTART_FRAGMENT returned to the parent class */
GST_HLS_PARSER_RESULT_RESYNC
} GstHLSParserResult;
typedef struct {
guint8 data[16];
} GstHLSKey;
/**
* GstHLSDemux:
*
* Opaque #GstHLSDemux data structure.
*/
struct _GstHLSDemux2
{
GstAdaptiveDemux parent;
/* Initial bitrate to use before any bandwidth measurement */
guint start_bitrate;
/* Decryption key cache: url => GstHLSKey */
GHashTable *keys;
GMutex keys_lock;
/* The master playlist with the available variant streams,
* created at demuxer start based on the input multivariant playlist */
GstHLSMasterPlaylist *master;
/* A ref to the main playlist, for access from external threads */
GstHLSMediaPlaylist *main_playlist;
GstHLSVariantStream *current_variant;
/* The variant we're switching to (currently being loaded by the playlist loader) */
GstHLSVariantStream *pending_variant;
/* List of failed variants that should be ignored */
GList *failed_variants;
GstHLSDemuxStream *main_stream;
/* Time Mappings (GstHLSTimeMap) */
GList *mappings;
};
struct _GstHLSDemux2Class
{
GstAdaptiveDemuxClass parent_class;
};
GstAdaptiveDemuxTrack *
gst_hls_demux_new_track_for_rendition (GstHLSDemux * demux,
GstHLSRenditionStream * rendition,
GstCaps * caps, GstStreamFlags flags, GstTagList * tags);
void gst_hls_demux_start_rendition_streams (GstHLSDemux * hlsdemux);
void gst_hls_demux_reset_for_lost_sync (GstHLSDemux * hlsdemux);
const GstHLSKey *gst_hls_demux_get_key (GstHLSDemux * demux,
const gchar * key_url, const gchar * referer, gboolean allow_cache);
void gst_hls_demux_handle_variant_playlist_update (GstHLSDemux * demux,
const gchar *playlist_uri, GstHLSMediaPlaylist * playlist);
void gst_hls_demux_handle_variant_playlist_update_error (GstHLSDemux * demux,
const gchar *playlist_uri);
gboolean gst_hls_demux_change_variant_playlist (GstHLSDemux * demux,
gboolean iframe_variant, guint max_bitrate, gboolean * changed);
GstFlowReturn gst_hls_demux_update_variant_playlist (GstHLSDemux * demux,
GError ** err);
void gst_hls_demux_add_time_mapping (GstHLSDemux * demux, gint64 dsn,
GstClockTimeDiff stream_time, GDateTime * pdt);
void gst_hls_update_time_mappings (GstHLSDemux * demux,
GstHLSMediaPlaylist * playlist);
gchar *gst_hls_buf_to_utf8_text (GstBuffer * buf);
/* Private */
GstHLSParserResult gst_hlsdemux_handle_content_mpegts (GstHLSDemux *demux,
GstHLSDemuxStream *hls_stream,
gboolean draining,
GstBuffer **buffer);
GstHLSParserResult gst_hlsdemux_handle_content_id3 (GstHLSDemux *demux,
GstHLSDemuxStream *hls_stream,
gboolean draining,
GstBuffer **buffer);
GstHLSParserResult gst_hlsdemux_handle_content_isobmff (GstHLSDemux *demux,
GstHLSDemuxStream *hls_stream,
gboolean draining,
GstBuffer **buffer);
GstHLSParserResult gst_hlsdemux_handle_content_webvtt (GstHLSDemux *demux,
GstHLSDemuxStream *hls_stream,
gboolean draining,
GstBuffer **buffer);
GstClockTimeDiff gst_hls_internal_to_stream_time (GstHLSTimeMap *map,
GstClockTime internal_time);
GstHLSTimeMap *gst_hls_demux_find_time_map (GstHLSDemux * demux, gint64 dsn);
GType gst_hls_demux2_get_type (void);
GType gst_hls_demux_stream_get_type (void);
G_END_DECLS
#endif /* __GST_HLS_DEMUX_H__ */