#include <gpac/thread.h>
#include <gpac/network.h>
#include <gpac/dash.h>
#include <gpac/internal/mpd.h>
#include <gpac/internal/m3u8.h>
#include <gpac/internal/isomedia_dev.h>
#include <string.h>
#include <time.h>

Include dependency graph for dash_client.c:

Data Structures
struct	GF_DashClient

struct	segment_cache_entry

struct	GF_DASH_Group

Macros
#define	M3U8_TO_MPD_USE_TEMPLATE 0

#define	GET_REP_ATTR(_a) _a = rep->_a; if (!_a) _a = set->_a;

Enumerations
enum	GF_DASH_STATE { GF_DASH_STATE_STOPPED = 0, GF_DASH_STATE_SETUP, GF_DASH_STATE_CONNECTING, GF_DASH_STATE_RUNNING }

enum	GF_DASHGroupSelection { GF_DASH_GROUP_NOT_SELECTABLE = 0, GF_DASH_GROUP_NOT_SELECTED, GF_DASH_GROUP_SELECTED }

enum	GF_DASHURLResolveType { GF_DASH_RESOLVE_URL_MEDIA, GF_DASH_RESOLVE_URL_INIT, GF_DASH_RESOLVE_URL_INDEX, GF_DASH_RESOLVE_URL_MEDIA_TEMPLATE }

Functions
static void	gf_dash_seek_group (GF_DashClient dash, GF_DASH_Group group)

static const char *	gf_dash_get_mime_type (GF_MPD_SubRepresentation subrep, GF_MPD_Representation rep, GF_MPD_AdaptationSet *set)

static void	gf_dash_buffer_off (GF_DASH_Group group, GF_DashClient dash)

static void	gf_dash_buffer_on (GF_DASH_Group group, GF_DashClient dash)

static u64	dash_get_fetch_time (GF_DashClient *dash)

static u32	gf_dash_group_count_rep_needed (GF_DASH_Group *group)

void	gf_dash_get_buffer_info_buffering (GF_DashClient dash, u32 total_buffer, u32 *media_buffered)

static void	gf_dash_update_buffering (GF_DASH_Group group, GF_DashClient dash)

Bool	gf_dash_check_mpd_root_type (const char *local_url)

static void	gf_dash_group_timeline_setup (GF_MPD mpd, GF_DASH_Group group, u64 fetch_time)

static Bool	gf_dash_is_dash_mime (const char *mime)

static Bool	gf_dash_is_m3u8_mime (const char url, const char mime)

GF_Err	gf_dash_group_check_bandwidth (GF_DashClient *dash, u32 idx)

GF_Err	gf_dash_download_resource (GF_DASHFileIO dash_io, GF_DASHFileIOSession sess, const char url, u64 start_range, u64 end_range, u32 persistent_mode, GF_DASH_Group group)

static void	gf_dash_get_timeline_duration (GF_MPD_SegmentTimeline timeline, u32 nb_segments, Double *max_seg_duration)

static void	gf_dash_get_segment_duration (GF_MPD_Representation rep, GF_MPD_AdaptationSet set, GF_MPD_Period period, GF_MPD mpd, u32 nb_segments, Double max_seg_duration)

static u64	gf_dash_segment_timeline_start (GF_MPD_SegmentTimeline timeline, u32 segment_index, u64 segment_duration)

static Double	gf_dash_get_segment_start_time (GF_DASH_Group group, Double segment_duration)

u64	gf_dash_get_segment_availability_start_time (GF_MPD mpd, GF_DASH_Group group, u32 segment_index, u32 *seg_dur_ms)

static void	gf_dash_resolve_duration (GF_MPD_Representation rep, GF_MPD_AdaptationSet set, GF_MPD_Period period, u64 out_duration, u32 out_timescale, u64 out_pts_offset, GF_MPD_SegmentTimeline **out_segment_timeline)

static GF_Err	gf_dash_merge_segment_timeline (GF_MPD_SegmentList old_list, GF_MPD_SegmentTemplate old_template, GF_MPD_SegmentList new_list, GF_MPD_SegmentTemplate new_template, Double min_start_time)

static u32	gf_dash_purge_segment_timeline (GF_DASH_Group *group, Double min_start_time)

static GF_Err	gf_dash_update_manifest (GF_DashClient *dash)

static void	gf_dash_set_group_representation (GF_DASH_Group group, GF_MPD_Representation rep)

static void	gf_dash_switch_group_representation (GF_DashClient mpd, GF_DASH_Group group)

static GF_Err	gf_dash_resolve_url (GF_MPD mpd, GF_MPD_Representation rep, GF_DASH_Group group, const char mpd_url, GF_DASHURLResolveType resolve_type, u32 item_index, char *out_url, u64 out_range_start, u64 out_range_end, u64 segment_duration, Bool *is_in_base_url)

static GF_Err	gf_dash_download_init_segment (GF_DashClient dash, GF_DASH_Group group)

static void	gf_dash_skip_disabled_representation (GF_DASH_Group group, GF_MPD_Representation rep)

static void	gf_dash_reset_groups (GF_DashClient *dash)

GF_Err	gf_dash_setup_groups (GF_DashClient *dash)

static GF_Err	gf_dash_load_sidx (GF_BitStream bs, GF_MPD_Representation rep, Bool seperate_index, u64 sidx_offset)

static GF_Err	gf_dash_load_representation_sidx (GF_DASH_Group group, GF_MPD_Representation rep, const char *cache_name, Bool seperate_index, Bool needs_mov_range)

static GF_Err	dash_load_box_type (const char cache_name, u32 offset, u32 box_type, u32 *box_size)

static GF_Err	gf_dash_setup_single_index_mode (GF_DASH_Group *group)

static GF_Err	gf_dash_setup_period (GF_DashClient *dash)

static void	dash_do_rate_adaptation (GF_DashClient dash, GF_DASH_Group group, GF_MPD_Representation *rep)

static u32	dash_main_thread_proc (void *par)

static u32	gf_dash_period_index_from_time (GF_DashClient *dash, u32 time)

static void	gf_dash_download_stop (GF_DashClient *dash)

Bool	gf_dash_seek_periods (GF_DashClient *dash)

void	gf_dash_seek_groups (GF_DashClient *dash)

static GF_Err	http_ifce_get (GF_FileDownload getter, char url)

static void	http_ifce_clean (GF_FileDownload *getter)

static const char *	http_ifce_cache_name (GF_FileDownload *getter)

GF_Err	gf_dash_open (GF_DashClient dash, const char manifest_url)

void	gf_dash_close (GF_DashClient *dash)

GF_DashClient *	gf_dash_new (GF_DASHFileIO *dash_io, u32 max_cache_duration, u32 auto_switch_count, Bool keep_files, Bool disable_switching, GF_DASHInitialSelectionMode first_select_mode, Bool enable_buffering, u32 initial_time_shift_percent)

void	gf_dash_del (GF_DashClient *dash)

void	gf_dash_set_idle_interval (GF_DashClient *dash, u32 idle_time_ms)

void	gf_dash_enable_utc_drift_compensation (GF_DashClient *dash, Bool estimate_utc_drift)

u32	gf_dash_get_group_count (GF_DashClient *dash)

void *	gf_dash_get_group_udta (GF_DashClient *dash, u32 idx)

GF_Err	gf_dash_set_group_udta (GF_DashClient dash, u32 idx, void udta)

Bool	gf_dash_is_group_selected (GF_DashClient *dash, u32 idx)

void	gf_dash_get_info (GF_DashClient dash, const char title, const char *source)

void	gf_dash_switch_quality (GF_DashClient *dash, Bool switch_up, Bool immediate_switch)

Double	gf_dash_get_duration (GF_DashClient *dash)

const char *	gf_dash_get_url (GF_DashClient *dash)

const char *	gf_dash_group_get_segment_mime (GF_DashClient *dash, u32 idx)

const char *	gf_dash_group_get_segment_init_url (GF_DashClient dash, u32 idx, u64 start_range, u64 *end_range)

void	gf_dash_group_select (GF_DashClient *dash, u32 idx, Bool select)

void	gf_dash_groups_set_language (GF_DashClient dash, const char lang_3cc)

Bool	gf_dash_is_running (GF_DashClient *dash)

u32	gf_dash_get_period_switch_status (GF_DashClient *dash)

void	gf_dash_request_period_switch (GF_DashClient *dash)

Bool	gf_dash_in_last_period (GF_DashClient *dash)

Bool	gf_dash_in_period_setup (GF_DashClient *dash)

u32	gf_dash_group_get_max_segments_in_cache (GF_DashClient *dash, u32 idx)

u32	gf_dash_group_get_num_segments_ready (GF_DashClient dash, u32 idx, Bool group_is_done)

void	gf_dash_group_discard_segment (GF_DashClient *dash, u32 idx)

void	gf_dash_set_group_done (GF_DashClient *dash, u32 idx, Bool done)

GF_Err	gf_dash_group_get_presentation_time_offset (GF_DashClient dash, u32 idx, u64 presentation_time_offset, u32 *timescale)

GF_Err	gf_dash_group_get_next_segment_location (GF_DashClient dash, u32 idx, u32 dependent_representation_index, const char url, u64 start_range, u64 end_range, s32 switching_index, const char *switching_url, u64 switching_start_range, u64 switching_end_range, const char original_url, Bool has_next_segment)

GF_Err	gf_dash_group_probe_current_download_segment_location (GF_DashClient dash, u32 idx, const char url, s32 switching_index, const char switching_url, const char original_url, Bool *switched)

void	gf_dash_seek (GF_DashClient *dash, Double start_range)

Double	gf_dash_get_playback_start_range (GF_DashClient *dash)

Bool	gf_dash_group_segment_switch_forced (GF_DashClient *dash, u32 idx)

Double	gf_dash_group_current_segment_start_time (GF_DashClient *dash, u32 idx)

void	gf_dash_set_utc_shift (GF_DashClient *dash, s32 shift_utc_sec)

GF_Err	gf_dash_group_get_video_info (GF_DashClient dash, u32 idx, u32 max_width, u32 *max_height)

GF_Err	gf_dash_group_get_representation_info (GF_DashClient dash, u32 idx, u32 representation_idx, u32 width, u32 height, u32 audio_samplerate, u32 bandwidth, const char *codecs)

Bool	gf_dash_group_loop_detected (GF_DashClient *dash, u32 idx)

Double	gf_dash_group_get_start_range (GF_DashClient *dash, u32 idx)

Bool	gf_dash_is_dynamic_mpd (GF_DashClient *dash)

u32	gf_dash_get_min_buffer_time (GF_DashClient *dash)

static u32	gf_dash_get_start_number (GF_DASH_Group group, GF_MPD_Representation rep)

GF_Err	gf_dash_resync_to_segment (GF_DashClient dash, const char latest_segment_name, const char *earliest_segment_name)

GF_Err	gf_dash_set_max_resolution (GF_DashClient *dash, u32 width, u32 height)

Data Structure Documentation

struct __dash_client

Collaboration diagram for GF_DashClient:

Data Fields
GF_DASHFileIO *	dash_io
GF_FileDownload	getter
char *	base_url
u32	max_cache_duration
u32	max_width
u32	max_height
u32	auto_switch_count
Bool	keep_files
Bool	disable_switching
Bool	allow_local_mpd_update
Bool	enable_buffering
Bool	estimate_utc_drift
Bool	is_m3u8
u64	mpd_fetch_time
GF_DASHInitialSelectionMode	first_select_mode
GF_DASHFileIOSession	mpd_dnload
GF_MPD *	mpd
u32	reload_count
u32	last_update_time
u8	lastMPDSignature[20]
char *	mimeTypeForM3U8Segments
u32	active_period_index
u32	request_period_switch
u64	start_time_in_active_period
Bool	ignore_mpd_duration
u32	initial_time_shift_percent
GF_List *	groups
GF_Thread *	dash_thread
GF_Mutex *	dl_mutex
GF_DASH_STATE	dash_state
Bool	mpd_stop_request
Bool	in_period_setup
u32	nb_buffering
u32	idle_interval
s32	utc_drift_estimate
s32	utc_shift
Double	playback_start_range
Double	start_range_in_segment_at_next_period

struct segment_cache_entry

Collaboration diagram for segment_cache_entry:

Data Fields
char *	cache
char *	url
u64	start_range
u64	end_range
u32	representation_index
Bool	loop_detected
u32	duration

struct __dash_group

Collaboration diagram for GF_DASH_Group:

Data Fields
GF_DashClient *	dash
GF_MPD_AdaptationSet *	adaptation_set
GF_MPD_Period *	period
u32	active_rep_index
u32	prev_active_rep_index
Bool	timeline_setup
GF_DASHGroupSelection	selection
u32	time_shift_buffer_depth
Bool	bitstream_switching
Bool	dont_delete_first_segment
Bool	done
Bool	force_switch_bandwidth
Bool	min_bandwidth_selected
u32	download_start_time
u32	active_bitrate
u32	max_bitrate
u32	min_bitrate
u32	min_representation_bitrate
u32	nb_segments_in_rep
Double	segment_duration
Double	start_playback_range
u32	start_number
u32	start_number_override
Bool	was_segment_base
Bool	local_files
u32	download_segment_index
u32	nb_segments_purged
u32	nb_retry_on_last_segment
u32	start_number_at_last_ast
u64	ast_at_init
char *	urlToDeleteNext
volatile u32	max_cached_segments
volatile u32	nb_cached_segments
volatile u32	max_buffer_segments
segment_cache_entry *	cached
GF_DASHFileIOSession	segment_download
const char *	segment_local_url
u64	local_url_start_range
u64	local_url_end_range
u32	nb_segments_done
u32	last_segment_time
Bool	segment_must_be_streamed
Bool	broken_timing
Bool	buffering
u32	maybe_end_of_stream
u32	cache_duration
u32	time_at_first_reload_required
u32	force_representation_idx_plus_one
Bool	force_segment_switch
Bool	is_downloading
Bool	download_aborted
Bool	loop_detected
u32	time_at_first_failure
Bool	prev_segment_ok
Bool	segment_in_valid_range
u32	nb_consecutive_fail
u32	force_wait
u64	current_downloaded_segment_duration
char *	service_mime
u32	base_rep_index_plus_one
u32	force_max_rep_index
void *	udta

Macro Definition Documentation

#define M3U8_TO_MPD_USE_TEMPLATE 0

#define GET_REP_ATTR ( _a ) _a = rep->_a; if (!_a) _a = set->_a;

Enumeration Type Documentation

enum GF_DASH_STATE

Enumerator
GF_DASH_STATE_STOPPED
GF_DASH_STATE_SETUP
GF_DASH_STATE_CONNECTING
GF_DASH_STATE_RUNNING

enum GF_DASHGroupSelection

Enumerator
GF_DASH_GROUP_NOT_SELECTABLE
GF_DASH_GROUP_NOT_SELECTED
GF_DASH_GROUP_SELECTED

enum GF_DASHURLResolveType

Enumerator
GF_DASH_RESOLVE_URL_MEDIA
GF_DASH_RESOLVE_URL_INIT
GF_DASH_RESOLVE_URL_INDEX
GF_DASH_RESOLVE_URL_MEDIA_TEMPLATE

Function Documentation

static void gf_dash_seek_group	(	GF_DashClient *	dash,
		GF_DASH_Group *	group
	)

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static const char* gf_dash_get_mime_type	(	GF_MPD_SubRepresentation *	subrep,
		GF_MPD_Representation *	rep,
		GF_MPD_AdaptationSet *	set
	)

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static void gf_dash_buffer_off	(	GF_DASH_Group *	group,
		GF_DashClient *	dash
	)

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static void gf_dash_buffer_on	(	GF_DASH_Group *	group,
		GF_DashClient *	dash
	)

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static u64 dash_get_fetch_time ( GF_DashClient * dash )

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static u32 gf_dash_group_count_rep_needed ( GF_DASH_Group * group )

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void gf_dash_get_buffer_info_buffering	(	GF_DashClient *	dash,
		u32 *	total_buffer,
		u32 *	media_buffered
	)

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static void gf_dash_update_buffering	(	GF_DASH_Group *	group,
		GF_DashClient *	dash
	)

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Bool gf_dash_check_mpd_root_type ( const char * local_url )

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static void gf_dash_group_timeline_setup	(	GF_MPD *	mpd,
		GF_DASH_Group *	group,
		u64	fetch_time
	)

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static Bool gf_dash_is_dash_mime ( const char * mime )

static

Returns true if given mime type is a MPD file

Parameters

mime	the mime-type to check

Returns: true if mime-type if MPD-OK

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static Bool gf_dash_is_m3u8_mime	(	const char *	url,
		const char *	mime
	)

static

Returns true if mime type of a given URL is an M3U8 mime-type

Parameters

url	The url to check
mime	The mime-type to check

Returns: true if mime-type is OK for M3U8

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GF_Err gf_dash_group_check_bandwidth	(	GF_DashClient *	dash,
		u32	idx
	)

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GF_Err gf_dash_download_resource	(	GF_DASHFileIO *	dash_io,
		GF_DASHFileIOSession *	sess,
		const char *	url,
		u64	start_range,
		u64	end_range,
		u32	persistent_mode,
		GF_DASH_Group *	group
	)

Download a file with possible retry if GF_IP_CONNECTION_FAILURE|GF_IP_NETWORK_FAILURE (I discovered that with my WIFI connection, I had many issues with BFM-TV downloads) Similar to gf_term_download_new() and gf_dm_sess_process(). Parameters are identical to the ones of gf_term_download_new.

See Also: gf_term_download_new()

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static void gf_dash_get_timeline_duration	(	GF_MPD_SegmentTimeline *	timeline,
		u32 *	nb_segments,
		Double *	max_seg_duration
	)

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static void gf_dash_get_segment_duration	(	GF_MPD_Representation *	rep,
		GF_MPD_AdaptationSet *	set,
		GF_MPD_Period *	period,
		GF_MPD *	mpd,
		u32 *	nb_segments,
		Double *	max_seg_duration
	)

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static u64 gf_dash_segment_timeline_start	(	GF_MPD_SegmentTimeline *	timeline,
		u32	segment_index,
		u64 *	segment_duration
	)

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static Double gf_dash_get_segment_start_time	(	GF_DASH_Group *	group,
		Double *	segment_duration
	)

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u64 gf_dash_get_segment_availability_start_time	(	GF_MPD *	mpd,
		GF_DASH_Group *	group,
		u32	segment_index,
		u32 *	seg_dur_ms
	)

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static void gf_dash_resolve_duration	(	GF_MPD_Representation *	rep,
		GF_MPD_AdaptationSet *	set,
		GF_MPD_Period *	period,
		u64 *	out_duration,
		u32 *	out_timescale,
		u64 *	out_pts_offset,
		GF_MPD_SegmentTimeline **	out_segment_timeline
	)

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static GF_Err gf_dash_merge_segment_timeline	(	GF_MPD_SegmentList *	old_list,
		GF_MPD_SegmentTemplate *	old_template,
		GF_MPD_SegmentList *	new_list,
		GF_MPD_SegmentTemplate *	new_template,
		Double	min_start_time
	)

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static u32 gf_dash_purge_segment_timeline	(	GF_DASH_Group *	group,
		Double	min_start_time
	)

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static GF_Err gf_dash_update_manifest ( GF_DashClient * dash )

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static void gf_dash_set_group_representation	(	GF_DASH_Group *	group,
		GF_MPD_Representation *	rep
	)

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static void gf_dash_switch_group_representation	(	GF_DashClient *	mpd,
		GF_DASH_Group *	group
	)

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static GF_Err gf_dash_resolve_url	(	GF_MPD *	mpd,
		GF_MPD_Representation *	rep,
		GF_DASH_Group *	group,
		const char *	mpd_url,
		GF_DASHURLResolveType	resolve_type,
		u32	item_index,
		char **	out_url,
		u64 *	out_range_start,
		u64 *	out_range_end,
		u64 *	segment_duration,
		Bool *	is_in_base_url
	)

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static GF_Err gf_dash_download_init_segment	(	GF_DashClient *	dash,
		GF_DASH_Group *	group
	)

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static void gf_dash_skip_disabled_representation	(	GF_DASH_Group *	group,
		GF_MPD_Representation *	rep
	)

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static void gf_dash_reset_groups ( GF_DashClient * dash )

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GF_Err gf_dash_setup_groups ( GF_DashClient * dash )

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static GF_Err gf_dash_load_sidx	(	GF_BitStream *	bs,
		GF_MPD_Representation *	rep,
		Bool	seperate_index,
		u64	sidx_offset
	)

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static GF_Err gf_dash_load_representation_sidx	(	GF_DASH_Group *	group,
		GF_MPD_Representation *	rep,
		const char *	cache_name,
		Bool	seperate_index,
		Bool	needs_mov_range
	)

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static GF_Err dash_load_box_type	(	const char *	cache_name,
		u32	offset,
		u32 *	box_type,
		u32 *	box_size
	)

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static GF_Err gf_dash_setup_single_index_mode ( GF_DASH_Group * group )

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static GF_Err gf_dash_setup_period ( GF_DashClient * dash )

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static void dash_do_rate_adaptation	(	GF_DashClient *	dash,
		GF_DASH_Group *	group,
		GF_MPD_Representation *	rep
	)

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static u32 dash_main_thread_proc ( void * par )

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static u32 gf_dash_period_index_from_time	(	GF_DashClient *	dash,
		u32	time
	)

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static void gf_dash_download_stop ( GF_DashClient * dash )

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Bool gf_dash_seek_periods ( GF_DashClient * dash )

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void gf_dash_seek_groups ( GF_DashClient * dash )

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static GF_Err http_ifce_get	(	GF_FileDownload *	getter,
		char *	url
	)

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static void http_ifce_clean ( GF_FileDownload * getter )

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static const char* http_ifce_cache_name ( GF_FileDownload * getter )

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GF_Err gf_dash_open	(	GF_DashClient *	dash,
		const char *	manifest_url
	)

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void gf_dash_close ( GF_DashClient * dash )

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GF_DashClient* gf_dash_new	(	GF_DASHFileIO *	dash_io,
		u32	max_cache_duration,
		u32	auto_switch_count,
		Bool	keep_files,
		Bool	disable_switching,
		GF_DASHInitialSelectionMode	first_select_mode,
		Bool	enable_buffering,
		u32	initial_time_shift_percent
	)

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void gf_dash_del ( GF_DashClient * dash )

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void gf_dash_set_idle_interval	(	GF_DashClient *	dash,
		u32	idle_time_ms
	)

void gf_dash_enable_utc_drift_compensation	(	GF_DashClient *	dash,
		Bool	estimate_utc_drift
	)

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u32 gf_dash_get_group_count ( GF_DashClient * dash )

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void* gf_dash_get_group_udta	(	GF_DashClient *	dash,
		u32	idx
	)

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GF_Err gf_dash_set_group_udta	(	GF_DashClient *	dash,
		u32	idx,
		void *	udta
	)

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Bool gf_dash_is_group_selected	(	GF_DashClient *	dash,
		u32	idx
	)

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void gf_dash_get_info	(	GF_DashClient *	dash,
		const char **	title,
		const char **	source
	)

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void gf_dash_switch_quality	(	GF_DashClient *	dash,
		Bool	switch_up,
		Bool	immediate_switch
	)

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Double gf_dash_get_duration ( GF_DashClient * dash )

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const char* gf_dash_get_url ( GF_DashClient * dash )

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const char* gf_dash_group_get_segment_mime	(	GF_DashClient *	dash,
		u32	idx
	)

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const char* gf_dash_group_get_segment_init_url	(	GF_DashClient *	dash,
		u32	idx,
		u64 *	start_range,
		u64 *	end_range
	)

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void gf_dash_group_select	(	GF_DashClient *	dash,
		u32	idx,
		Bool	select
	)

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void gf_dash_groups_set_language	(	GF_DashClient *	dash,
		const char *	lang_3cc
	)

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Bool gf_dash_is_running ( GF_DashClient * dash )

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u32 gf_dash_get_period_switch_status ( GF_DashClient * dash )

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void gf_dash_request_period_switch ( GF_DashClient * dash )

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Bool gf_dash_in_last_period ( GF_DashClient * dash )

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Bool gf_dash_in_period_setup ( GF_DashClient * dash )

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u32 gf_dash_group_get_max_segments_in_cache	(	GF_DashClient *	dash,
		u32	idx
	)

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u32 gf_dash_group_get_num_segments_ready	(	GF_DashClient *	dash,
		u32	idx,
		Bool *	group_is_done
	)

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void gf_dash_group_discard_segment	(	GF_DashClient *	dash,
		u32	idx
	)

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void gf_dash_set_group_done	(	GF_DashClient *	dash,
		u32	idx,
		Bool	done
	)

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GF_Err gf_dash_group_get_presentation_time_offset	(	GF_DashClient *	dash,
		u32	idx,
		u64 *	presentation_time_offset,
		u32 *	timescale
	)

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GF_Err gf_dash_group_get_next_segment_location	(	GF_DashClient *	dash,
		u32	idx,
		u32	dependent_representation_index,
		const char **	url,
		u64 *	start_range,
		u64 *	end_range,
		s32 *	switching_index,
		const char **	switching_url,
		u64 *	switching_start_range,
		u64 *	switching_end_range,
		const char **	original_url,
		Bool *	has_next_segment
	)

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GF_Err gf_dash_group_probe_current_download_segment_location	(	GF_DashClient *	dash,
		u32	idx,
		const char **	url,
		s32 *	switching_index,
		const char **	switching_url,
		const char **	original_url,
		Bool *	switched
	)

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void gf_dash_seek	(	GF_DashClient *	dash,
		Double	start_range
	)

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Double gf_dash_get_playback_start_range ( GF_DashClient * dash )

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Bool gf_dash_group_segment_switch_forced	(	GF_DashClient *	dash,
		u32	idx
	)

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Double gf_dash_group_current_segment_start_time	(	GF_DashClient *	dash,
		u32	idx
	)

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void gf_dash_set_utc_shift	(	GF_DashClient *	dash,
		s32	shift_utc_sec
	)

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GF_Err gf_dash_group_get_video_info	(	GF_DashClient *	dash,
		u32	idx,
		u32 *	max_width,
		u32 *	max_height
	)

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GF_Err gf_dash_group_get_representation_info	(	GF_DashClient *	dash,
		u32	idx,
		u32	representation_idx,
		u32 *	width,
		u32 *	height,
		u32 *	audio_samplerate,
		u32 *	bandwidth,
		const char **	codecs
	)

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Bool gf_dash_group_loop_detected	(	GF_DashClient *	dash,
		u32	idx
	)

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Double gf_dash_group_get_start_range	(	GF_DashClient *	dash,
		u32	idx
	)

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Bool gf_dash_is_dynamic_mpd ( GF_DashClient * dash )

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u32 gf_dash_get_min_buffer_time ( GF_DashClient * dash )

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static u32 gf_dash_get_start_number	(	GF_DASH_Group *	group,
		GF_MPD_Representation *	rep
	)

static

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GF_Err gf_dash_resync_to_segment	(	GF_DashClient *	dash,
		const char *	latest_segment_name,
		const char *	earliest_segment_name
	)

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GF_Err gf_dash_set_max_resolution	(	GF_DashClient *	dash,
		u32	width,
		u32	height
	)

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