VTCLab Media Analyzer

[ivanb]

Hello everybody, I am the author of VTCLab Media Analyzer (https://media-analyzer.pro).

It's an in-browser tool to take a quick look into the internals of video files. It shows mostly high-level headers info, no macroblocks and coding tree units. Can be used to examine things like container metadata, VPS/SPS/PPS/Slice headers, SEI messages, etc. Requires no installation, just a more or less fresh browser with WebAssembly support.

Here are the news from the most recent version:

v0.2.4 2023-07-06

* MP4: Support 'schm', 'sinf', 'schi', 'sgpd' 'sbgp', 'mehd', 'trex', 'sidx', 'mfhd', 'tfhd', 'tfdt', trun', 'mdcv', 'clli', 'cclv' boxes
* TS: Add new PMT stream_types and descriptors from ISO/IEC 13818-1:2022
* TS/MP4/AVC/HEVC/VVC: Add enum names for AspectRatio, ChromaFormat, ColourPrimaries, TransferCharacteristics, MatrixCoefficients and HDR_WCG_idc fields, human-friendly descriptions for luminance- and color-related fields
* TS: Add DOVI_video_stream_descriptor support
* TS: Recognise SCTE-35 streams, add 'cue_identifier_descriptor' support
* VVC: Add support for several SEI messages, list names for others
* VVC: APS header support, picture_header_structure draft
* HEVC: Add names for Dolby Vision "Unspecified 62" and "Unspecified 63" NAL units
* SEI: Add Kvazaar, Elemental info from SEI Unregistered messages
* RBSP reader for AVC/HEVC/VVC: Fix incorrect behavior in some corner cases

Full Version History is here or on GitHub

Glad to hear any feedback

[ivanb]

2023-08-03 v0.2.5

* TS: SCTE-35 streams support (commands only, no descriptors yet)
* SEI: Add ATSC cc_data/bar_data/afd_data support in itu35 registered SEI
* MP4: Support various flavours of XDCAM (MPEG-2) video
* HEVC: time_code SEI support
* TS: MHP AIT transport_protocol_descriptor support
* Visualization: group long list of values into chunks of four items
* MP4: support simple 'udta' boxes from 3GPP spec
* MP4: Add 'av1C' (AV1CodecConfigurationBox), 'dOps' (OpusSpecificBox), 'dac4' (AC4SpecificBox) boxes support
* MP4: basic recognition of compressed movie atoms ('cmov', 'dcom', 'cmvd')
* Visualization: Print number of bytes in the utf8 string
* TS: fix tag&length display for MHP AIT descriptors
* MP4: fix hvcC flags display
* Fix tables and arrays visualization

[ivanb]

2023-09-04 v0.2.6

* Add support of Timed Text ('tx3g', 'text' sample entries) in MP4/MOV files
* Add basic handling of  AC-4 streams ('ac4_syncframe' only) in MP4 & TS files
* MPEG-TS: Support PSI tables & descriptors from ATSC A/65 standard, recognize all descriptors listed in DVB BlueBook A038r16
* Add descriptions for 'cc_type' 'active_format', 'video_format' fields
* Include PES packet type ('audio', 'video', private') to header name
* Add basic detection of MPEG Program / System Streams
* MP4/MOV: recognize more 'udta' boxes
* Improve probe algorithm: better recognition of MP4, small TS files
* Fix freezing in some cases of H.264 parsing

[ivanb]

2023-10-03 v0.3.0

* Matroska (MKV), WebM files support
* MP4: Add 'styp', 'saiz', 'saio', 'pssh', 'tenc','trep', 'dfLa', 'cslg', 'stps', 'sdtp' boxes support
* MP4: Display track references info ('tref' box)
* MP4: Display raw data chunks for some unsupported codecs
* SEI: ST2094-10 data, film_grain_characteristics, alpha_channel_info support
* SEI: Add support of AVCIntra data sei
* Improve streams recognition
* MP4: rework handling of NAL-based streams
* MP4: Improve performance of raw streams extraction, when there are a lot of small samples
* MP4: Display names for metadata items as numbered list
* MP4: Fix Timecode reading
* PES: Fix usage of tref_extension_flag
* HEVC: Fix crash on invalid array read
* RBSP: Fix corner case on reading
* MP4: Fix 'File Info' binding
* AVC: Fix mvc_vui_parameters_extension reading

[ivanb]

2023-11-07 v0.4.0

* VP8, VP9, AV1 video streams parsing
* New formats supported: AVI, WAV, FLV
* Fragmented MP4 files support
* Extend parsing of AC-4 streams
* Display Dolby Vision RPU data headers
* Improve streams recognition, parsing performance
* Various fixes for problems discovered by fuzzy testing
* MP4: support 'chnl', 'albm', 'yrrc', 'loci', 'hnti', 'hinf' boxes
* More descriptions for AC-4, AC-4, MPEG 1/2 Video, AVC and HEVC elements
* Visualization: if raw bytes looks like a text, display them as a text

[ivanb]

2023-11-15 v0.4.1

* Support 'spatial video' files shot by iPhone 15 Pro
* HEVC: parse 'three_dimensional_reference_displays_info' SEI, multilayer version of SPS,
  'sps_multilayer_extension', 'pps_multilayer_extension' structures
* MP4/MOV: Support 'lhvC' box
* Visualization: show slice_type and layer_id (if not 0) in the header name
  for AVC/HEVC/VVC streams

[Swedaniel]

Cool! Ive been looking for an media analyzer! I could use one for the browser to check out the statistics and info from my own videos, mostly for fun! Do you have an program for the desktop allso?

[ivanb]

Do you have an program for the desktop allso?

Not yet. Stay tuned

[Swedaniel]

Do you have an program for the desktop allso?

Not yet. Stay tuned

Yes ok, sounds cool. It would be real nice if it could work either with just any file on the computer, if i could connect to my file server and check out the stats on an video thru the connection, it would be real cool.. allso it would be awesome if it would be possible to connect to my own youtube account for example (or vimeo or whichever) and check the stats on the videos there allso! Alltough i dont have an YouTube account with videos on it, but it would be real cool! I think many would want such an program!

[ivanb]

connect to my file server and check out the stats on an video thru the connection

I'm curious, what kind of stats are you interested in (mostly)?