gstreamer/ext/smoothstreaming/gstmssmanifest.h
Philippe Normand 73721ad4e9 mssdemux: improved live playback support
When a MSS server hosts a live stream the fragments listed in the
manifest usually don't have accurate timestamps and duration, except
for the first fragment, which additionally stores timing information
for the few upcoming fragments. In this scenario it is useless to
periodically fetch and update the manifest and the fragments list can
be incrementally built by parsing the first/current fragment.

https://bugzilla.gnome.org/show_bug.cgi?id=755036
2016-11-29 14:43:41 +01:00

84 lines
4.1 KiB
C

/* GStreamer
* Copyright (C) 2012 Smart TV Alliance
* Author: Thiago Sousa Santos <thiago.sousa.santos@collabora.com>, Collabora Ltd.
*
* gstmssmanifest.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_MSS_MANIFEST_H__
#define __GST_MSS_MANIFEST_H__
#include <glib.h>
#include <gio/gio.h>
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
typedef struct _GstMssManifest GstMssManifest;
typedef struct _GstMssStream GstMssStream;
typedef enum _GstMssStreamType {
MSS_STREAM_TYPE_UNKNOWN = 0,
MSS_STREAM_TYPE_VIDEO = 1,
MSS_STREAM_TYPE_AUDIO = 2
} GstMssStreamType;
GstMssManifest * gst_mss_manifest_new (GstBuffer * data);
void gst_mss_manifest_free (GstMssManifest * manifest);
GSList * gst_mss_manifest_get_streams (GstMssManifest * manifest);
guint64 gst_mss_manifest_get_timescale (GstMssManifest * manifest);
guint64 gst_mss_manifest_get_duration (GstMssManifest * manifest);
GstClockTime gst_mss_manifest_get_gst_duration (GstMssManifest * manifest);
void gst_mss_manifest_seek (GstMssManifest * manifest, gboolean forward, guint64 time);
gboolean gst_mss_manifest_change_bitrate (GstMssManifest *manifest, guint64 bitrate);
guint64 gst_mss_manifest_get_current_bitrate (GstMssManifest * manifest);
gboolean gst_mss_manifest_is_live (GstMssManifest * manifest);
gint64 gst_mss_manifest_get_dvr_window_length (GstMssManifest * manifest);
gint gst_mss_manifest_get_look_ahead_fragments_count (GstMssManifest * manifest);
void gst_mss_manifest_reload_fragments (GstMssManifest * manifest, GstBuffer * data);
GstClockTime gst_mss_manifest_get_min_fragment_duration (GstMssManifest * manifest);
const gchar * gst_mss_manifest_get_protection_system_id (GstMssManifest * manifest);
const gchar * gst_mss_manifest_get_protection_data (GstMssManifest * manifest);
gboolean gst_mss_manifest_get_live_seek_range (GstMssManifest * manifest, gint64 * start, gint64 * stop);
GstMssStreamType gst_mss_stream_get_type (GstMssStream *stream);
GstCaps * gst_mss_stream_get_caps (GstMssStream * stream);
gboolean gst_mss_stream_select_bitrate (GstMssStream * stream, guint64 bitrate);
guint64 gst_mss_stream_get_current_bitrate (GstMssStream * stream);
void gst_mss_stream_set_active (GstMssStream * stream, gboolean active);
guint64 gst_mss_stream_get_timescale (GstMssStream * stream);
GstFlowReturn gst_mss_stream_get_fragment_url (GstMssStream * stream, gchar ** url);
GstClockTime gst_mss_stream_get_fragment_gst_timestamp (GstMssStream * stream);
GstClockTime gst_mss_stream_get_fragment_gst_duration (GstMssStream * stream);
gboolean gst_mss_stream_has_next_fragment (GstMssStream * stream);
GstFlowReturn gst_mss_stream_advance_fragment (GstMssStream * stream);
GstFlowReturn gst_mss_stream_regress_fragment (GstMssStream * stream);
void gst_mss_stream_seek (GstMssStream * stream, gboolean forward, GstSeekFlags flags, guint64 time, guint64 * final_time);
const gchar * gst_mss_stream_get_lang (GstMssStream * stream);
const gchar * gst_mss_stream_type_name (GstMssStreamType streamtype);
void gst_mss_manifest_live_adapter_push(GstMssStream * stream, GstBuffer * buffer);
gsize gst_mss_manifest_live_adapter_available(GstMssStream * stream);
GstBuffer * gst_mss_manifest_live_adapter_take_buffer(GstMssStream * stream, gsize nbytes);
gboolean gst_mss_stream_fragment_parsing_needed(GstMssStream * stream);
void gst_mss_stream_parse_fragment(GstMssStream * stream, GstBuffer * buffer);
G_END_DECLS
#endif /* __GST_MSS_MANIFEST_H__ */