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/* GStreamer
* Copyright (C) 2010 Marc-Andre Lureau <>
* Copyright (C) 2010 Andoni Morales Alastruey <>
* 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
* 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 "gstfragmented.h"
#include <gst/uridownloader/gsturidownloader.h>
#include <nettle/aes.h>
#include <nettle/cbc.h>
#include <gcrypt.h>
#define GST_HLS_DEMUX(obj) \
#define GST_HLS_DEMUX_CLASS(klass) \
#define GST_IS_HLS_DEMUX(obj) \
#define GST_IS_HLS_DEMUX_CLASS(klass) \
#define GST_HLS_DEMUX_GET_CLASS(obj) \
#define GST_HLS_DEMUX_CAST(obj) \
((GstHLSDemux *)obj)
typedef struct _GstHLSDemux GstHLSDemux;
typedef struct _GstHLSDemuxClass GstHLSDemuxClass;
* GstHLSDemux:
* Opaque #GstHLSDemux data structure.
struct _GstHLSDemux
GstBin parent;
GstPad *sinkpad;
GstPad *srcpad;
gint srcpad_counter;
gboolean have_group_id;
guint group_id;
GstBuffer *playlist;
GstCaps *input_caps;
GstUriDownloader *downloader;
gchar *uri; /* Original playlist URI */
GstM3U8Client *client; /* M3U8 client */
gboolean do_typefind; /* Whether we need to typefind the next buffer */
gboolean new_playlist; /* Whether a new playlist is about to start and pads should be switched */
/* Properties */
guint fragments_cache; /* number of fragments needed to be cached to start playing */
gfloat bitrate_limit; /* limit of the available bitrate to use */
guint connection_speed; /* Network connection speed in kbps (0 = unknown) */
/* Streaming task */
GstTask *stream_task;
GRecMutex stream_lock;
gboolean stop_stream_task;
GMutex download_lock; /* Used for protecting queue and the two conds */
GCond download_cond; /* Signalled when something is added to the queue */
gboolean end_of_playlist;
gint download_failed_count;
gint64 next_download;
/* Updates task */
GstTask *updates_task;
GRecMutex updates_lock;
gint64 next_update; /* Time of the next update */
gboolean stop_updates_task;
GMutex updates_timed_lock;
GCond updates_timed_cond; /* Signalled when the playlist should be updated */
/* Position in the stream */
GstSegment segment;
gboolean need_segment;
gboolean discont;
/* Cache for the last key */
gchar *key_url;
GstFragment *key_fragment;
/* Current download rate (bps) */
gint current_download_rate;
/* fragment download tooling */
GstElement *src;
GstPad *src_srcpad; /* handy link to src's src pad */
GMutex fragment_download_lock;
GCond fragment_download_cond;
GstClockTime current_timestamp;
GstClockTime current_duration;
gboolean starting_fragment;
gboolean reset_crypto;
gint64 download_start_time;
gint64 download_total_time;
gint64 download_total_bytes;
GstFlowReturn last_ret;
GError *last_error;
/* decryption tooling */
struct CBC_CTX (struct aes_ctx, AES_BLOCK_SIZE) aes_ctx;
gcry_cipher_hd_t aes_ctx;
const gchar *current_key;
const guint8 *current_iv;
GstAdapter *adapter; /* used to accumulate 16 bytes multiple chunks */
GstBuffer *pending_buffer; /* decryption scenario:
* the last buffer can only be pushed when
* resized, so need to store and wait for
* EOS to know it is the last */
struct _GstHLSDemuxClass
GstBinClass parent_class;
GType gst_hls_demux_get_type (void);
#endif /* __GST_HLS_DEMUX_H__ */