mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-17 13:56:32 +00:00
6b55f97529
In case of per features registration such as the customizable gstreamer-full library, each element should check that the soup library can be loaded to facilitate the element registration. Initialize the debug categories properly Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2348>
250 lines
7.4 KiB
C
250 lines
7.4 KiB
C
/* GStreamer
|
|
* Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@gmail.com>
|
|
* Copyright (C) 2010 Andoni Morales Alastruey <ylatuya@gmail.com>
|
|
* Copyright (C) 2015 Tim-Philipp Müller <tim@centricular.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 "gstisoff.h"
|
|
#include "gstadaptivedemux.h"
|
|
#if defined(HAVE_OPENSSL)
|
|
#include <openssl/evp.h>
|
|
#elif defined(HAVE_NETTLE)
|
|
#include <nettle/aes.h>
|
|
#include <nettle/cbc.h>
|
|
#elif defined(HAVE_LIBGCRYPT)
|
|
#include <gcrypt.h>
|
|
#endif
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_HLS_DEMUX2 \
|
|
(gst_hls_demux2_get_type())
|
|
#define GST_HLS_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_HLS_DEMUX2,GstHLSDemux))
|
|
#define GST_HLS_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_HLS_DEMUX2,GstHLSDemuxClass))
|
|
#define GST_IS_HLS_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_HLS_DEMUX2))
|
|
#define GST_IS_HLS_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_HLS_DEMUX2))
|
|
#define GST_HLS_DEMUX_GET_CLASS(obj) \
|
|
(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_HLS_DEMUX2,GstHLSDemuxClass))
|
|
#define GST_HLS_DEMUX_CAST(obj) \
|
|
((GstHLSDemux *)obj)
|
|
|
|
typedef struct _GstHLSDemux2 GstHLSDemux;
|
|
typedef struct _GstHLSDemux2Class GstHLSDemuxClass;
|
|
|
|
#define GST_TYPE_HLS_DEMUX_STREAM \
|
|
(gst_hls_demux_stream_get_type())
|
|
#define GST_HLS_DEMUX_STREAM(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_HLS_DEMUX_STREAM,GstHLSDemuxStream))
|
|
#define GST_HLS_DEMUX_STREAM_CAST(obj) ((GstHLSDemuxStream *)obj)
|
|
|
|
typedef struct _GstHLSDemuxStream GstHLSDemuxStream;
|
|
typedef GstAdaptiveDemux2StreamClass GstHLSDemuxStreamClass;
|
|
|
|
typedef enum {
|
|
GST_HLS_PARSER_NONE,
|
|
GST_HLS_PARSER_MPEGTS,
|
|
GST_HLS_PARSER_ID3,
|
|
GST_HLS_PARSER_WEBVTT,
|
|
GST_HLS_PARSER_ISOBMFF
|
|
} GstHLSParserType;
|
|
|
|
typedef enum {
|
|
/* More data is needed to parse the fragment */
|
|
GST_HLS_PARSER_RESULT_NEED_MORE_DATA,
|
|
/* An error happened, discard the fragment */
|
|
GST_HLS_PARSER_RESULT_ERROR,
|
|
/* Parsing suceeded, it no longer needs to be called for the fragment */
|
|
GST_HLS_PARSER_RESULT_DONE,
|
|
/* The fragment wasn't the expected one. Current data must be dropped and
|
|
* GST_ADAPTIVE_DEMUX_FLOW_RESTART_FRAGMENT returned to the parent class */
|
|
GST_HLS_PARSER_RESULT_RESYNC
|
|
} GstHLSParserResult;
|
|
|
|
struct _GstHLSDemuxStream
|
|
{
|
|
GstAdaptiveDemux2Stream adaptive_demux_stream;
|
|
|
|
/* A stream either variants or renditions */
|
|
gboolean is_variant;
|
|
|
|
/* Rendition-specific fields */
|
|
GstStreamType rendition_type; /* FIXME: Also used by variant streams */
|
|
gchar *lang;
|
|
gchar *name;
|
|
GstHLSRenditionStream *current_rendition;
|
|
/* rendition to switch to */
|
|
GstHLSRenditionStream *pending_rendition;
|
|
/* End of Rendition-specific fields */
|
|
|
|
/* Whether the underlying playlist was fetched on creation */
|
|
gboolean playlist_fetched;
|
|
|
|
/* The media playlist currently used */
|
|
GstHLSMediaPlaylist *playlist;
|
|
|
|
/* The segment (from the above playlist) currently being used */
|
|
GstM3U8MediaSegment *current_segment;
|
|
|
|
/* The previous ::advance_fragment() failed for live stream */
|
|
gboolean pending_advance;
|
|
|
|
/* Whether we need to typefind the next buffer */
|
|
gboolean do_typefind;
|
|
|
|
/* for collecting data until typefind succeeds */
|
|
GstBuffer *pending_typefind_buffer;
|
|
|
|
/* for chunking data into 16 byte multiples for decryption */
|
|
GstAdapter *pending_encrypted_data;
|
|
|
|
/* last decrypted buffer for pkcs7 unpadding. We only know that it is the last
|
|
* on ::finish_fragment() */
|
|
GstBuffer *pending_decrypted_buffer;
|
|
|
|
/* Current offset (in bytes) in fragment data we pushed downstream. Resets to
|
|
* -1 at every fragment start */
|
|
guint64 current_offset;
|
|
|
|
gboolean reset_pts;
|
|
|
|
/* decryption tooling */
|
|
#if defined(HAVE_OPENSSL)
|
|
# if OPENSSL_VERSION_NUMBER < 0x10100000L
|
|
EVP_CIPHER_CTX aes_ctx;
|
|
# else
|
|
EVP_CIPHER_CTX *aes_ctx;
|
|
# endif
|
|
#elif defined(HAVE_NETTLE)
|
|
struct CBC_CTX (struct aes128_ctx, AES_BLOCK_SIZE) aes_ctx;
|
|
#elif defined(HAVE_LIBGCRYPT)
|
|
gcry_cipher_hd_t aes_ctx;
|
|
#endif
|
|
|
|
gchar *current_key;
|
|
guint8 *current_iv;
|
|
|
|
/* The type of parser used for data handling */
|
|
GstHLSParserType parser_type;
|
|
|
|
/* Is content processing required ? */
|
|
gboolean process_buffer_content;
|
|
/* Data to be analyzed by */
|
|
GstBuffer *pending_segment_data;
|
|
/* TRUE if pending_segment_data contains data from a header/index */
|
|
gboolean pending_data_is_header;
|
|
|
|
/* ISOBMFF */
|
|
GstMoovBox *moov;
|
|
|
|
/* Presentation offset to use and report. This value will be appended to all
|
|
* "output" stream times. Not enabled (i.e 0) if variant is ISOBMFF
|
|
*/
|
|
GstClockTime presentation_offset;
|
|
};
|
|
|
|
typedef struct {
|
|
guint8 data[16];
|
|
} GstHLSKey;
|
|
|
|
/**
|
|
* GstHLSDemux:
|
|
*
|
|
* Opaque #GstHLSDemux data structure.
|
|
*/
|
|
struct _GstHLSDemux2
|
|
{
|
|
GstAdaptiveDemux parent;
|
|
|
|
/* Initial bitrate to use before any bandwidth measurement */
|
|
guint start_bitrate;
|
|
|
|
/* Decryption key cache: url => GstHLSKey */
|
|
GHashTable *keys;
|
|
GMutex keys_lock;
|
|
|
|
/* FIXME: check locking, protected automatically by manifest_lock already? */
|
|
/* The master playlist with the available variant streams */
|
|
GstHLSMasterPlaylist *master;
|
|
|
|
GstHLSVariantStream *current_variant;
|
|
/* The variant to switch to */
|
|
GstHLSVariantStream *pending_variant;
|
|
|
|
GstHLSDemuxStream *main_stream;
|
|
|
|
/* Time Mappings (GstHLSTimeMap) */
|
|
GList *mappings;
|
|
};
|
|
|
|
struct _GstHLSDemux2Class
|
|
{
|
|
GstAdaptiveDemuxClass parent_class;
|
|
};
|
|
|
|
|
|
gchar *gst_hls_buf_to_utf8_text (GstBuffer * buf);
|
|
|
|
/* Private */
|
|
|
|
GstHLSParserResult gst_hlsdemux_handle_content_mpegts (GstHLSDemux *demux,
|
|
GstHLSDemuxStream *hls_stream,
|
|
gboolean draining,
|
|
GstBuffer **buffer);
|
|
|
|
GstHLSParserResult gst_hlsdemux_handle_content_id3 (GstHLSDemux *demux,
|
|
GstHLSDemuxStream *hls_stream,
|
|
gboolean draining,
|
|
GstBuffer **buffer);
|
|
|
|
GstHLSParserResult gst_hlsdemux_handle_content_isobmff (GstHLSDemux *demux,
|
|
GstHLSDemuxStream *hls_stream,
|
|
gboolean draining,
|
|
GstBuffer **buffer);
|
|
|
|
GstHLSParserResult gst_hlsdemux_handle_content_webvtt (GstHLSDemux *demux,
|
|
GstHLSDemuxStream *hls_stream,
|
|
gboolean draining,
|
|
GstBuffer **buffer);
|
|
|
|
GstHLSParserResult gst_hlsdemux_handle_internal_time (GstHLSDemux *demux,
|
|
GstHLSDemuxStream *hls_stream,
|
|
GstClockTime internal_time);
|
|
|
|
GstClockTimeDiff gst_hls_internal_to_stream_time (GstHLSTimeMap *map,
|
|
GstClockTime internal_time);
|
|
|
|
GstHLSTimeMap *gst_hls_find_time_map (GstHLSDemux * demux, gint64 dsn);
|
|
|
|
GType gst_hls_demux2_get_type (void);
|
|
GType gst_hls_demux_stream_get_type (void);
|
|
|
|
G_END_DECLS
|
|
#endif /* __GST_HLS_DEMUX_H__ */
|