Current File : //data/old/usr/local/include/gpac/html5_media.h
/*
* GPAC - Multimedia Framework C SDK
*
* Authors: Cyril Concolato
* Copyright (c) Telecom ParisTech 2013-
* All rights reserved
*
* This file is part of GPAC / HTML Media Element header
*
* GPAC is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GPAC 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _GF_HTMLMEDIA_H_
#define _GF_HTMLMEDIA_H_
#ifdef __cplusplus
extern "C" {
#endif
/*!
* \file <gpac/html5_media.h>
* \brief Scene graph extensions for HTML5 media.
*/
/*! \defgroup html5_grp HTML5
* \ingroup scene_grp
* \brief HTML5 extensions of the scene graph.
*
*/
/*!
* \addtogroup html5media_grp HTML5 media
* \ingroup html5_grp
* \brief Scene graph extensions for HTML5 media.
*
*This section documents the scene graph extensions used for HTML5 media (video).
* @{
*/
#include <gpac/internal/scenegraph_dev.h>
/*base SVG type*/
#include <gpac/nodes_svg.h>
/*dom events*/
#include <gpac/events.h>
/*dom text event*/
#include <gpac/utf.h>
#include <gpac/download.h>
#include <gpac/network.h>
#include <gpac/modules/service.h>
#include <gpac/xml.h>
#include <gpac/internal/terminal_dev.h>
#ifdef GPAC_HAS_SPIDERMONKEY
#include <gpac/internal/smjs_api.h>
#endif
typedef struct
{
u32 nb_inst;
/* Basic classes */
GF_JSClass arrayBufferClass;
/*HTML Media classes*/
GF_JSClass htmlVideoElementClass;
GF_JSClass htmlAudioElementClass;
GF_JSClass htmlSourceElementClass;
GF_JSClass htmlTrackElementClass;
GF_JSClass htmlMediaElementClass;
GF_JSClass mediaControllerClass;
GF_JSClass audioTrackListClass;
GF_JSClass audioTrackClass;
GF_JSClass videoTrackListClass;
GF_JSClass videoTrackClass;
GF_JSClass textTrackListClass;
GF_JSClass textTrackClass;
GF_JSClass textTrackCueListClass;
GF_JSClass textTrackCueClass;
GF_JSClass timeRangesClass;
GF_JSClass trackEventClass;
GF_JSClass mediaErrorClass;
/* Media Source Extensions */
GF_JSClass mediaSourceClass;
GF_JSClass sourceBufferClass;
GF_JSClass sourceBufferListClass;
GF_JSClass URLClass;
/* Media Capture */
GF_JSClass mediaStreamClass;
GF_JSClass localMediaStreamClass;
GF_JSClass mediaStreamTrackClass;
GF_JSClass mediaStreamTrackListClass;
GF_JSClass navigatorUserMediaClass;
GF_JSClass navigatorUserMediaErrorClass;
} GF_HTML_MediaRuntime;
/************************************************************
*
* HTML 5 Media Element
* http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-element
*
*************************************************************/
typedef enum
{
MEDIA_ERR_ABORTED = 1,
MEDIA_ERR_NETWORK = 2,
MEDIA_ERR_DECODE = 3,
MEDIA_ERR_SRC_NOT_SUPPORTED = 4
} GF_HTML_MediaErrorCode;
typedef enum
{
NETWORK_EMPTY = 0,
NETWORK_IDLE = 1,
NETWORK_LOADING = 2,
NETWORK_NO_SOURCE = 3
} GF_HTML_NetworkState;
typedef enum
{
HAVE_NOTHING = 0,
HAVE_METADATA = 1,
HAVE_CURRENT_DATA = 2,
HAVE_FUTURE_DATA = 3,
HAVE_ENOUGH_DATA = 4
} GF_HTML_MediaReadyState;
typedef struct
{
/* JavaScript context associated to this object */
JSContext *c;
/* JavaScript counterpart */
JSObject *_this;
GF_HTML_MediaErrorCode code;
} GF_HTML_MediaError;
typedef struct _timerange
{
/* JavaScript context associated to this object */
JSContext *c;
/* JavaScript counterpart */
JSObject *_this;
GF_List *times;
u32 timescale;
} GF_HTML_MediaTimeRanges;
typedef enum {
HTML_MEDIA_TRACK_TYPE_UNKNOWN = 0,
HTML_MEDIA_TRACK_TYPE_AUDIO = 1,
HTML_MEDIA_TRACK_TYPE_VIDEO = 2,
HTML_MEDIA_TRACK_TYPE_TEXT = 3
} GF_HTML_TrackType;
#define BASE_HTML_TRACK \
/* JavaScript context associated to this object */\
JSContext *c;\
/* JavaScript counterpart */\
JSObject *_this;\
/* GPAC-specific properties */\
u32 bin_id; /* track id */\
LPNETCHANNEL channel; /* channel object used by the terminal */\
GF_ObjectDescriptor *od; /* MPEG-4 Object descriptor for this track */\
GF_List *buffer; /* List of MSE Packets */\
u32 packet_index; /* index of MSE Packets*/\
GF_Mutex *buffer_mutex;\
Bool last_dts_set; \
u64 last_dts; /* MSE last decode timestamp (in timescale units)*/ \
u32 last_dur; /* MSE last frame duration (in timescale units)*/ \
Bool highest_pts_set; \
u64 highest_pts; /* MSE highest presentation timestamp (in timescale units)*/ \
Bool needs_rap; /* MSE need random access point flag */ \
u32 timescale; /* used by time stamps in MSE Packets */ \
s64 timestampOffset; /* MSE SourceBuffer value (in timescale units) */ \
/* standard HTML properties */ \
GF_HTML_TrackType type;\
char *id;\
char *kind;\
char *label;\
char *language;\
char *mime; \
Bool enabled_or_selected;
typedef struct
{
BASE_HTML_TRACK
} GF_HTML_Track;
typedef struct
{
BASE_HTML_TRACK
JSFunction *oncuechange;
char *inBandMetadataTrackDispatchType;
//GF_HTMLTextTrackMode mode;
//GF_HTMLTextTrackCueList cues;
//GF_HTMLTextTrackCueList activeCues;
} GF_HTML_TextTrack;
#define BASE_HTML_TRACK_LIST \
/* JavaScript context associated to this object */\
JSContext *c;\
/* JavaScript counterpart */\
JSObject *_this;\
GF_List *tracks; \
jsval onchange; \
jsval onaddtrack; \
jsval onremovetrack; \
u32 selected_index;
typedef struct
{
BASE_HTML_TRACK_LIST
} GF_HTML_TrackList;
typedef enum
{
MEDIA_CONTROLLER_WAITING = 0,
MEDIA_CONTROLLER_PLAYING = 1,
MEDIA_CONTROLLER_ENDED = 2
} GF_HTML_MediaControllerPlaybackState;
typedef struct
{
/* JavaScript context associated to this object */
JSContext *c;
/* JavaScript counterpart */
JSObject *_this;
GF_HTML_MediaTimeRanges *buffered;
GF_HTML_MediaTimeRanges *seekable;
GF_HTML_MediaTimeRanges *played;
Bool paused;
GF_HTML_MediaControllerPlaybackState playbackState;
double defaultPlaybackRate;
/* list of media elements using this media controller */
GF_List *media_elements;
} GF_HTML_MediaController;
typedef struct
{
/* JavaScript context associated to this object */
JSContext *c;
/* JavaScript counterpart */
JSObject *_this;
/* The audio or video node */
GF_Node *node;
/* error state */
GF_HTML_MediaError error;
/* src: not stored in this structure,
using the value stored in the node ( see HTML 5 "must reflect the content of the attribute")*/
/* currentSrc: the actual source used for the video (src attribute on video, audio or source elements) */
char *currentSrc;
/* crossOrigin: "must reflect the content of the attribute of the same name", use the node */
/* networkState: retrieved dynamically from GPAC Service */
/* preload: "must reflect the content of the attribute of the same name", use the node */
GF_HTML_MediaTimeRanges *buffered;
/* ready state */
/* readyState: retrieved from GPAC Media Object dynamically */
Bool seeking;
/* playback state */
/* currentTime: retrieved from GPAC Media Object */
/* duration: retrieved from GPAC Media Object */
char *startDate;
Bool paused;
double defaultPlaybackRate;
GF_HTML_MediaTimeRanges *played;
GF_HTML_MediaTimeRanges *seekable;
/* ended: retrieved from the state of GPAC Media Object */
/* autoplay: "must reflect the content of the attribute of the same name", use the node */
/* loop: "must reflect the content of the attribute of the same name", use the node */
/* media controller*/
/* mediaGroup: "must reflect the content of the attribute of the same name", use the node */
GF_HTML_MediaController *controller;
/* controls*/
/* controls: "must reflect the content of the attribute of the same name", use the node */
/* volume: retrieved from GPAC Audio Input in GPAC Media Object */
/* muted: retrieved from GPAC media object */
/* defaultMuted: "must reflect the content of the attribute of with the name" muted */
/* tracks*/
GF_HTML_TrackList audioTracks;
GF_HTML_TrackList videoTracks;
GF_HTML_TrackList textTracks;
GF_DOMEventTarget *evt_target;
} GF_HTML_MediaElement;
typedef struct
{
/* JavaScript context used to create the JavaScript object below */
JSContext *c;
/* JavaScript counterpart for this object*/
JSObject *_this;
char *data;
u32 length;
char *url;
Bool is_init;
/* used to do proper garbage collection between JS and Terminal */
u32 reference_count;
} GF_HTML_ArrayBuffer;
/*
* TimeRanges
*/
GF_HTML_MediaTimeRanges *gf_html_timeranges_new(u32 timescale);
GF_Err gf_html_timeranges_add_start(GF_HTML_MediaTimeRanges *timeranges, u64 start);
GF_Err gf_html_timeranges_add_end(GF_HTML_MediaTimeRanges *timeranges, u64 end);
void gf_html_timeranges_reset(GF_HTML_MediaTimeRanges *range);
void gf_html_timeranges_del(GF_HTML_MediaTimeRanges *range);
GF_HTML_MediaTimeRanges *gf_html_timeranges_intersection(GF_HTML_MediaTimeRanges *a, GF_HTML_MediaTimeRanges *b);
GF_HTML_MediaTimeRanges *gf_html_timeranges_union(GF_HTML_MediaTimeRanges *a, GF_HTML_MediaTimeRanges *b);
/*
* HTML5 TrackList
*/
GF_HTML_Track *html_media_add_new_track_to_list(GF_HTML_TrackList *tracklist,
GF_HTML_TrackType type, const char *mime, Bool enable_or_selected,
const char *id, const char *kind, const char *label, const char *lang);
Bool html_media_tracklist_has_track(GF_HTML_TrackList *tracklist, const char *id);
GF_HTML_Track *html_media_tracklist_get_track(GF_HTML_TrackList *tracklist, const char *id);
void gf_html_tracklist_del(GF_HTML_TrackList *tlist);
/*
* HTML5 Tracks
*/
GF_HTML_Track *gf_html_media_track_new(GF_HTML_TrackType type, const char *mime, Bool enable_or_selected,
const char *id, const char *kind, const char *label, const char *lang);
void gf_html_track_del(GF_HTML_Track *track);
/*
* HTML5 Media Element
*/
GF_HTML_MediaElement *gf_html_media_element_new(GF_Node *media_node, GF_HTML_MediaController *mc);
void gf_html_media_element_del(GF_HTML_MediaElement *me);
void html_media_element_js_init(JSContext *c, JSObject *new_obj, GF_Node *n);
/*
* HTML5 Media Controller
*/
GF_HTML_MediaController *gf_html_media_controller_new();
void gf_html_media_controller_del(GF_HTML_MediaController *mc);
/*
* HTML5 Array Buffer
*/
GF_HTML_ArrayBuffer *gf_arraybuffer_new(char *data, u32 length);
JSObject *gf_arraybuffer_js_new(JSContext *c, char *data, u32 length, JSObject *parent);
void gf_arraybuffer_del(GF_HTML_ArrayBuffer *buffer, Bool del_js);
/*! @} */
#ifdef __cplusplus
}
#endif
#endif // _GF_HTMLMEDIA_H_
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