reframe_adts.c File Reference

#include <gpac/avparse.h>
#include <gpac/constants.h>
#include <gpac/filters.h>

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Data Structures
struct	ADTSHeader
struct	ADTSIdx
struct	GF_ADTSDmxCtx

Macros
#define	OFFS(_n)   #_n, offsetof(GF_ADTSDmxCtx, _n)

Enumerations
enum	{ AAC_SIGNAL_NONE =0 , AAC_SIGNAL_IMPLICIT , AAC_SIGNAL_EXPLICIT }

Functions
static Bool	adts_dmx_sync_frame_bs (GF_BitStream *bs, ADTSHeader *hdr)
void	id3dmx_flush (GF_Filter *filter, u8 *id3_buf, u32 id3_buf_size, GF_FilterPid *audio_pid, GF_FilterPid **video_pid_p)
GF_Err	adts_dmx_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
static void	adts_dmx_check_dur (GF_Filter *filter, GF_ADTSDmxCtx *ctx)
static void	adts_dmx_check_pid (GF_Filter *filter, GF_ADTSDmxCtx *ctx)
static Bool	adts_dmx_process_event (GF_Filter *filter, const GF_FilterEvent *evt)
static GFINLINE void	adts_dmx_update_cts (GF_ADTSDmxCtx *ctx)
GF_Err	adts_dmx_process (GF_Filter *filter)
static void	adts_dmx_finalize (GF_Filter *filter)
static const char *	adts_dmx_probe_data (const u8 *data, u32 size, GF_FilterProbeScore *score)
const GF_FilterRegister *	rfadts_register (GF_FilterSession *session)

Variables
static const GF_FilterCapability	ADTSDmxCaps []
static const GF_FilterArgs	ADTSDmxArgs []
GF_FilterRegister	ADTSDmxRegister

---

Data Structure Documentation

ADTSHeader

struct ADTSHeader

Data Fields
Bool	is_mp2
Bool	no_crc
u32	profile
u32	sr_idx
u32	nb_ch
u32	frame_size
u32	hdr_size

ADTSIdx

struct ADTSIdx

Data Fields
u64	pos
Double	duration

GF_ADTSDmxCtx

struct GF_ADTSDmxCtx

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Data Fields
u32	frame_size
Double	index
u32	sbr
u32	ps
Bool	ovsbr
Bool	expart
s32	aacchcfg
GF_FilterPid *	ipid
GF_FilterPid *	opid
GF_FilterPid *	vpid
GF_BitStream *	bs
u64	file_pos
u64	cts
u32	sr_idx
u32	nb_ch
u32	is_mp2
u32	profile
GF_Fraction64	duration
Double	start_range
Bool	in_seek
u32	timescale
u32	sample_rate
ADTSHeader	hdr
u32	dts_inc
Bool	is_playing
Bool	is_file
Bool	file_loaded
Bool	initial_play_done
Bool	copy_props
GF_FilterPacket *	src_pck
ADTSIdx *	indexes
u32	index_alloc_size
u32	index_size
u8 *	adts_buffer
u32	adts_buffer_size
u32	adts_buffer_alloc
u32	resume_from
u64	byte_offset
u32	tag_size
u8 *	id3_buffer
u32	id3_buffer_size
u32	id3_buffer_alloc
u32	nb_frames
GF_M4ADecSpecInfo	acfg
u32	bitrate
Bool	is_sync

Macro Definition Documentation

OFFS

#define OFFS

(

_n

)

#_n, offsetof(GF_ADTSDmxCtx, _n)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
AAC_SIGNAL_NONE
AAC_SIGNAL_IMPLICIT
AAC_SIGNAL_EXPLICIT

Function Documentation

adts_dmx_sync_frame_bs()

static Bool adts_dmx_sync_frame_bs ( GF_BitStream *  bs, ADTSHeader *  hdr  )

static

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id3dmx_flush()

void id3dmx_flush	(	GF_Filter *	filter,
		u8 *	id3_buf,
		u32	id3_buf_size,
		GF_FilterPid *	audio_pid,
		GF_FilterPid **	video_pid_p
	)

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adts_dmx_configure_pid()

GF_Err adts_dmx_configure_pid	(	GF_Filter *	filter,
		GF_FilterPid *	pid,
		Bool	is_remove
	)

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adts_dmx_check_dur()

static void adts_dmx_check_dur ( GF_Filter *  filter, GF_ADTSDmxCtx *  ctx  )

static

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adts_dmx_check_pid()

static void adts_dmx_check_pid ( GF_Filter *  filter, GF_ADTSDmxCtx *  ctx  )

static

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adts_dmx_process_event()

static Bool adts_dmx_process_event ( GF_Filter *  filter, const GF_FilterEvent *  evt  )

static

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adts_dmx_update_cts()

static GFINLINE void adts_dmx_update_cts ( GF_ADTSDmxCtx *  ctx )

static

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adts_dmx_process()

GF_Err adts_dmx_process

(

GF_Filter *

filter

)

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adts_dmx_finalize()

static void adts_dmx_finalize ( GF_Filter *  filter )

static

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adts_dmx_probe_data()

static const char* adts_dmx_probe_data ( const u8 *  data, u32  size, GF_FilterProbeScore *  score  )

static

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rfadts_register()

const GF_FilterRegister* rfadts_register

(

GF_FilterSession *

session

)

Variable Documentation

ADTSDmxCaps

const GF_FilterCapability ADTSDmxCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_STRING(GF_CAPS_INPUT, GF_PROP_PID_FILE_EXT, "aac|adts"),
        CAP_STRING(GF_CAPS_INPUT, GF_PROP_PID_MIME, "audio/x-m4a|audio/aac|audio/aacp|audio/x-aac"),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_AUDIO),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG4),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG2_MP),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG2_LCP),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG2_SSRP),
        
        CAP_BOOL(GF_CAPS_OUTPUT_STATIC_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
        CAP_UINT(GF_CAPS_INPUT_OUTPUT,GF_PROP_PID_STREAM_TYPE, GF_STREAM_AUDIO),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG4),
        CAP_BOOL(GF_CAPS_INPUT,GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_BOOL(GF_CAPS_INPUT_EXCLUDED,GF_PROP_PID_UNFRAMED_LATM, GF_TRUE),
        {0},
        CAP_UINT(GF_CAPS_INPUT_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_ENCRYPTED),
        CAP_UINT(GF_CAPS_INPUT, GF_PROP_PID_PROTECTION_SCHEME_TYPE, GF_HLS_SAMPLE_AES_SCHEME),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_AAC_MPEG4),
        CAP_BOOL(GF_CAPS_INPUT,GF_PROP_PID_UNFRAMED, GF_TRUE),
 
}

ADTSDmxArgs

const GF_FilterArgs ADTSDmxArgs[]

static

Initial value:

=
{
        { OFFS(frame_size), "size of AAC frame in audio samples", GF_PROP_UINT, "1024", NULL, GF_FS_ARG_HINT_EXPERT},
        { OFFS(index), "indexing window length", GF_PROP_DOUBLE, "1.0", NULL, 0},
 
        { OFFS(ovsbr), "force oversampling SBR (does not multiply timescales by 2)", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(sbr), "set SBR signaling\n"
                                "- no: no SBR signaling at all\n"
                                "- imp: backward-compatible SBR signaling (audio signaled as AAC-LC)\n"
                                "- exp: explicit SBR signaling (audio signaled as AAC-SBR)"
                                , GF_PROP_UINT, "no", "no|imp|exp", GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ps), "set PS signaling\n"
                                "- no: no PS signaling at all\n"
                                "- imp: backward-compatible PS signaling (audio signaled as AAC-LC)\n"
                                "- exp: explicit PS signaling (audio signaled as AAC-PS)"
                                , GF_PROP_UINT, "no", "no|imp|exp", GF_FS_ARG_HINT_ADVANCED},
        { OFFS(expart), "expose pictures as a dedicated video PID", GF_PROP_BOOL, "false", NULL, 0},
        { OFFS(aacchcfg), "set AAC channel configuration to this value if missing from ADTS header, use negative value to always override", GF_PROP_SINT, "0", NULL, GF_FS_ARG_HINT_EXPERT},
        {0}
}

ADTSDmxRegister

GF_FilterRegister ADTSDmxRegister

Initial value:

= {
        .name = "rfadts",
 
 
        .private_size = sizeof(GF_ADTSDmxCtx),
        .args = ADTSDmxArgs,
        .finalize = adts_dmx_finalize,
        SETCAPS(ADTSDmxCaps),
        .configure_pid = adts_dmx_configure_pid,
        .process = adts_dmx_process,
        .probe_data = adts_dmx_probe_data,
        .process_event = adts_dmx_process_event,
        .hint_class_type = GF_FS_CLASS_FRAMING
 
}