XPADxpert

 Screenshots

SLS	catSLS simulation	DL/DL+	Journaline	F-PAD + X-PAD w/o CIs	ETI/RDI filter	Save payload

 Supported applications

• Dynamic Label (DL)
• Dynamic Label Plus (DL+)
• Multimedia Object Transfer (MOT), e.g. for MOT Slideshow (SLS + catSLS); at the moment only header mode
• Journaline; at the moment, application types 4&5 are assumed

 Supported file types

*.mp2

MP2 audio frames (e.g. from DABlin, Andreas Gsinn's DAB Player, Terratec's NOXON software, DVBviewer's Radio.exe)

*.aac

AAC audio ADTS or LATM/LOAS (e.g. from DABlin, DVBviewer's Radio.exe)

*.mp4, *.m4a

MP4 containing AAC audio (e.g. from Andreas Gsinn's DAB Player, Terratec's NOXON software, hardware DAB+ receivers)

*.dab

DAB+ super frames with Reed Solomon coding (e.g. from Terratec's NOXON software)

*.msc

DAB+ super frames without Reed Solomon coding

*.eti, *.eni, *

DAB ETI(NI, G.703; NA, G.704) (e.g. from dabtools' dab2eti, IB Mulka's DAB-XPlorer)

*.rdi

DAB RDI (e.g. from IRT's DAB-Scout, IB Mulka's DAB-XPlorer)

*.ts

pseudo MPEG-TS containing DAB ETI(NI, G.703; NA, G.704) (e.g. from satellite feeds)

*.pad

custom PAD format (e.g. for testing purposes)

 Download

 XPADxpert v1.12 (28.04.2019)

 Links

• XPADxpert discussion thread at Rundfunkforum
• DABlin - DAB/DAB+ receiver for Linux (including ETI-NI playback)
• welle.io - a DAB/DAB+ software radio
• Andreas Gsinn's DAB Player
• Opendigitalradio.org
• dabtools
• reed-solomon-android (used for Reed-Solomon decoding)

 Contact

 Hints

• the raw data bytes of the X-PAD blocks (and subsequent elements) is displayed in their logical order - not in the (inverse) transmission order
• X-PAD with content indicators are shown in black, while ones without are shown in grey
• application entities received without errors are shown in blue, while ones with errors are shown in red
• MOT body elements: via double click the program tries to display the body content as image in a popup
• to not lose track over the several parameters, the content of fields like first flag, last flag and segment number is shown combined
• Journaline menus: links are shown in blue, if the file contains the regarding JML object, otherwise in red
• catSLS simulation (using only slides having catSLS tags): navigation within the two lists is possible via arrow keys; saving a slide is possible via double click on it
• specify a filename on cmdline to initially open that file e.g. java -jar XPADxpert.jar /tmp/test.eti

 Changelog

• add support for AAC LATM/LOAS format (DABlin)
• add cmdline option to open file
• Bugfix: don't crash on forbidden FIG len 0

• Display frame/AU timestamps (only with MP2 frames or with AAC AUs within Superframes)
• MOT: add ClickThroughURL/AlternativeLocationURL support
• DAB+ bugfix: fixed issue with RS coding lib and newer JRE version
• FIC bugfix: use correct charset for ensemble/service label
• MOT bugfix: use correct charset for ContentName

• DAB+ bugfix: move RS coding processing before Fire Code check
• Bugfix: prevent continuation of already valid Data Groups (due to bad reception)
• DAB+: output garbage frame for invalid AU
• Bugfix: remove non-existing frame ID in filename suggestion for garbage frames

• DL+ bugfix: show/honor link bit

• Bugfix: process segmented Data Group Length Indicator (only regarded Short X-PAD)
• F-PAD bugfix: do not require all bits (except F-PAD type and CI flag) to be zero

• DAB+: added Reed-Solomon decoding

• extensive refactoring
• DL: complete support of charsets 0 (EBU Latin based = basic RDS), 6 (UCS-2 BE) and 15 (UTF-8)
• DAB+: search area for super frame sync increased
• F-PAD: added per frame display
• added MP2 export (useful only at ensembles)
• GUI: added mnemonics
• DL+ bugfix: fixed crash at DL+ tag with start marker behind label end
• Bugfix: fixed including CRC length into Data Group Length Indicator length

• ETI: support for encapsulation in a pseudo MPEG-TS (sync byte is followed by 187 bytes payload) added
• ETI (NA, G.704): input files no longer have to be byte-aligned
• Support for a custom raw PAD format (one byte - indicating the PAD lenght - is followed by the indicated number of PAD bytes; like in AAC, there is no gap between X-PAD and F-PAD) added

• ETI: support for ETI (NA, G.704) added
• ETI: files without filename extension now assumed to be ETI (ETI-NI/NA autodetection)
• ETI (NI, G.703): input files no longer have to be frame-aligned
• DL+: indicating additional bytes after last tag
• MP4: special brand of Samsung Galaxy S WiFi 5.0 DAB+ recordings included
• Input format displayed in tree root node
• Progress indicator while loading (huge) files

• Bugfix: broken AAC support of v1.4 fixed

• RDI support added
• ETI/RDI: all subchannels are extracted/cached at once (but still faster than before)
• ETI/RDI: bitrate/protection determined via FIC (before: via ETI metadata)
• ETI/RDI: subchannels now ordered by ID (before: like within ETI frame)

• Bugfix: window size now changeable (otherwise ununsable with lowres displays)

• MOT: catSLS simulation

• Journaline support added
• MOT: button for saving valid MOT bodies added (duplicate prevention by comparison of transport id/body content)
• MOT: display catSLS tags
• MP4 bugfix: raise error on zero size boxes

• MP4 container support added
• ETI: button for faster subchannel change added

• initial version