| /* 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; |
| 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 */ |
| #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__ */ |