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/* GStreamer
* Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@gmail.com>
* Copyright (C) 2010 Andoni Morales Alastruey <ylatuya@gmail.com>
*
* m3u8.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 __M3U8_H__
#define __M3U8_H__
#include <glib.h>
G_BEGIN_DECLS typedef struct _GstM3U8 GstM3U8;
typedef struct _GstM3U8MediaFile GstM3U8MediaFile;
typedef struct _GstM3U8Client GstM3U8Client;
#define GST_M3U8(m) ((GstM3U8*)m)
#define GST_M3U8_MEDIA_FILE(f) ((GstM3U8MediaFile*)f)
#define GST_M3U8_CLIENT_LOCK(c) g_mutex_lock (&c->lock);
#define GST_M3U8_CLIENT_UNLOCK(c) g_mutex_unlock (&c->lock);
#define GST_M3U8_CLIENT_IS_LIVE(c) ((!(c)->current || (c)->current->endlist) ? FALSE : TRUE)
/* hlsdemux must not get closer to the end of a live stream than
GST_M3U8_LIVE_MIN_FRAGMENT_DISTANCE fragments. Section 6.3.3
"Playing the Playlist file" of the HLS draft states that this
value is three fragments */
#define GST_M3U8_LIVE_MIN_FRAGMENT_DISTANCE 3
/* hlsdemux must not get closer to the end of a live stream than
GST_M3U8_LIVE_MIN_FRAGMENT_DISTANCE fragments. Section 6.3.3
"Playing the Playlist file" of the HLS draft states that this
value is three fragments */
#define GST_M3U8_LIVE_MIN_FRAGMENT_DISTANCE 3
struct _GstM3U8
{
gchar *uri; /* actually downloaded URI */
gchar *base_uri; /* URI to use as base for resolving relative URIs.
* This will be different to uri in case of redirects */
gchar *name; /* This will be the "name" of the playlist, the original
* relative/absolute uri in a variant playlist */
gboolean endlist; /* if ENDLIST has been reached */
gint version; /* last EXT-X-VERSION */
GstClockTime targetduration; /* last EXT-X-TARGETDURATION */
gboolean allowcache; /* last EXT-X-ALLOWCACHE */
gint bandwidth;
gint program_id;
gchar *codecs;
gint width;
gint height;
gboolean iframe;
GList *files;
/*< private > */
gchar *last_data;
GList *lists; /* list of GstM3U8 from the main playlist */
GList *iframe_lists; /* I-frame lists from the main playlist */
GList *current_variant; /* Current variant playlist used */
GstM3U8 *parent; /* main playlist (if any) */
gint64 mediasequence; /* EXT-X-MEDIA-SEQUENCE & increased with new media file */
};
struct _GstM3U8MediaFile
{
gchar *title;
GstClockTime duration;
gchar *uri;
gint64 sequence; /* the sequence nb of this file */
gboolean discont; /* this file marks a discontinuity */
gchar *key;
guint8 iv[16];
gint64 offset, size;
};
struct _GstM3U8Client
{
GstM3U8 *main; /* main playlist */
GstM3U8 *current;
guint update_failed_count;
GList *current_file;
gint64 sequence; /* the next sequence for this client */
GstClockTime sequence_position; /* position of this sequence */
gint64 highest_sequence_number; /* largest seen sequence number */
GstClockTime first_file_start; /* timecode of the start of the first fragment in the current media playlist */
GstClockTime last_file_end; /* timecode of the end of the last fragment in the current media playlist */
GstClockTime duration; /* cached total duration */
GMutex lock;
};
GstM3U8Client *gst_m3u8_client_new (const gchar * uri, const gchar * base_uri);
void gst_m3u8_client_free (GstM3U8Client * client);
gboolean gst_m3u8_client_update (GstM3U8Client * client, gchar * data);
gboolean gst_m3u8_client_update_variant_playlist (GstM3U8Client * client, gchar * data, const gchar * uri, const gchar * base_uri);
void gst_m3u8_client_set_current (GstM3U8Client * client, GstM3U8 * m3u8);
gboolean gst_m3u8_client_get_next_fragment (GstM3U8Client * client,
gboolean * discontinuity, gchar ** uri, GstClockTime * duration,
GstClockTime * timestamp, gint64 * range_start, gint64 * range_end,
gchar ** key, guint8 ** iv, gboolean forward);
gboolean gst_m3u8_client_has_next_fragment (GstM3U8Client * client, gboolean forward);
void gst_m3u8_client_advance_fragment (GstM3U8Client * client, gboolean forward);
GstClockTime gst_m3u8_client_get_duration (GstM3U8Client * client);
GstClockTime gst_m3u8_client_get_target_duration (GstM3U8Client * client);
gchar *gst_m3u8_client_get_uri(GstM3U8Client * client);
gchar *gst_m3u8_client_get_current_uri(GstM3U8Client * client);
gboolean gst_m3u8_client_has_main(GstM3U8Client * client);
gboolean gst_m3u8_client_has_variant_playlist(GstM3U8Client * client);
gboolean gst_m3u8_client_is_live(GstM3U8Client * client);
GList * gst_m3u8_client_get_playlist_for_bitrate (GstM3U8Client * client,
guint bitrate);
guint64 gst_m3u8_client_get_current_fragment_duration (GstM3U8Client * client);
gboolean gst_m3u8_client_get_seek_range(GstM3U8Client * client, gint64 * start, gint64 * stop);
G_END_DECLS
#endif /* __M3U8_H__ */
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