/* 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., 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> #ifdef HAVE_NETTLE #include <nettle/aes.h> #include <nettle/cbc.h> #else #include <gcrypt.h> #endif 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)) #define GST_HLS_DEMUX_GET_CLASS(obj) \ (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_HLS_DEMUX,GstHLSDemuxClass)) #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; GMutex fragment_download_lock; GCond fragment_download_cond; GstClockTime current_timestamp; GstClockTime current_duration; gboolean starting_fragment; gint64 download_start_time; gint64 download_total_time; gint64 download_total_bytes; GstFlowReturn last_ret; /* decryption tooling */ #ifdef HAVE_NETTLE struct CBC_CTX (struct aes_ctx, AES_BLOCK_SIZE) aes_ctx; #else gcry_cipher_hd_t aes_ctx; #endif 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); G_END_DECLS #endif /* __GST_HLS_DEMUX_H__ */