gstreamer/gst/hls/gsthlsdemux.h
Youness Alaoui 55e4206159 hlsdemux: Report the correct timestamp for live streams
Buffers would always start with timestamp 0 and we'd start streaming
from the first buffer, but live streams always start streaming from
the last fragment - 3 fragments in the playlist, which makes its
timestamp, as returned by get_next_fragment, be whatever position
they had in the playlist. This makes sure the position correctly
reports the position of the buffer in the playlist, and added a shifting
variable to allow seeking in the middle of fragments.
2011-09-09 12:21:36 +02:00

104 lines
3.4 KiB
C

/* GStreamer
* Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@gmail.com>
* Copyright (C) 2010 Andoni Morales Alastruey <ylatuya@gmail.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_HLS_DEMUX_H__
#define __GST_HLS_DEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "m3u8.h"
G_BEGIN_DECLS
#define GST_TYPE_HLS_DEMUX \
(gst_hls_demux_get_type())
#define GST_HLS_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_HLS_DEMUX,GstHLSDemux))
#define GST_HLS_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_HLS_DEMUX,GstHLSDemuxClass))
#define GST_IS_HLS_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_HLS_DEMUX))
#define GST_IS_HLS_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_HLS_DEMUX))
typedef struct _GstHLSDemux GstHLSDemux;
typedef struct _GstHLSDemuxClass GstHLSDemuxClass;
/**
* GstHLSDemux:
*
* Opaque #GstHLSDemux data structure.
*/
struct _GstHLSDemux
{
GstElement parent;
GstTask *task;
GStaticRecMutex task_lock;
GstPad *srcpad;
GstPad *sinkpad;
GstBuffer *playlist;
GstCaps *input_caps;
GstM3U8Client *client; /* M3U8 client */
GQueue *queue; /* Queue storing the fetched fragments */
gboolean need_cache; /* Wheter we need to cache some fragments before starting to push data */
gboolean end_of_playlist;
gboolean do_typefind; /* Whether we need to typefind the next buffer */
/* Properties */
guint fragments_cache; /* number of fragments needed to be cached to start playing */
gfloat bitrate_switch_tol; /* tolerance with respect to the fragment duration to switch the bitarate*/
/* Updates thread */
GThread *updates_thread; /* Thread handling the playlist and fragments updates */
GMutex *thread_lock; /* Thread lock */
GCond *thread_cond; /* Signals the thread to quit */
gboolean thread_return; /* Instructs the thread to return after the thread_quit condition is meet */
GTimeVal next_update; /* Time of the next update */
gint64 accumulated_delay; /* Delay accumulated fetching fragments, used to decide a playlist switch */
/* Fragments fetcher */
GstElement *fetcher;
GstBus *fetcher_bus;
GstPad *fetcherpad;
GMutex *fetcher_lock;
GCond *fetcher_cond;
GTimeVal *timeout;
gboolean fetcher_error;
gboolean stopping_fetcher;
gboolean cancelled;
GstAdapter *download;
/* Position in the stream */
GstClockTime position;
GstClockTime position_shift;
gboolean need_segment;
};
struct _GstHLSDemuxClass
{
GstElementClass parent_class;
};
GType gst_hls_demux_get_type (void);
G_END_DECLS
#endif /* __GST_HLS_DEMUX_H__ */