2 ms·

> Admittedly TIFF is also an overly flexible mess, but then so are Matroska (thus the need for the WebM profile of it) Webm went way too far when they stripped

> Admittedly TIFF is also an overly flexible mess, but then so are Matroska (thus the need for the WebM profile of it) Webm went way too far when they stripped out support for subtitles. The engineers who made that decision should be ashamed.

mananaysiempre 3y ago
As much as I’m fond of my collection of Matroska files with SSA/ASS subtitle tracks, I don’t think those are appropriate for the Web, what with all the font issues; and SRT is a nightmare of encodings. But apparently there’s a WebM-blessed way[1] of embedding WebVTT ( = SRT + UTF-8 − decimal commas) now? Which is of course different[2] from the more recent Matroska.org-blessed way[3], sigh. [1] https://www.webmproject.org/docs/container/#webvtt-guidelines https://www.webmproject.org/docs/container/#webvtt-guideline... [2] https://trac.ffmpeg.org/ticket/5641 https://trac.ffmpeg.org/ticket/5641 [3] https://matroska.org/technical/codec_specs.html#s_textwebvtt https://matroska.org/technical/codec_specs.html#s_textwebvtt
- Lammy 3y ago
  > I don’t think those are appropriate for the Web, what with all the font issues Fun fact: several broadcast standards use Bitstream TrueDoc Portable Font Resource, which was supported for embedded web fonts way back in Netscape 4: https://people.apache.org/~jim/NewArchitect/webrevu/1997/11_07/webauthors/11_07_97_2.html https://people.apache.org/~jim/NewArchitect/webrevu/1997/11_... https://web.archive.org/web/20040407162455/http://www.bitstream.com/categories/developer/truedoc/pfrspec.html https://web.archive.org/web/20040407162455/http://www.bitstr... “The PFR specification defines the Bitstream portable font resource (PFR), which is a compact, platform-independent format for representing high-quality, scalable outline fonts. Many independent organizations responsible for setting digital TV standards have adopted the PFR font format as their standard font format, including: — ATSC (Advanced Television Systems Committee) — DAVIC (Digital Audio Visual Council) — DVB (Digital Video Broadcasting) — DTG (Digital TV Group) — MHP (Multimedia Home Platform) — ISO/IEC 16500-6:1999 — OCAP (OpenCable Application Platform)”
- gsich 3y ago
  All text based subtitles share the (non-)issue of encoding. Nothing wrong with SRT, it's UTF8 in Mkv anyway.

mananaysiempre 3y ago

As much as I’m fond of my collection of Matroska files with SSA/ASS subtitle tracks, I don’t think those are appropriate for the Web, what with all the font issues; and SRT is a nightmare of encodings. But apparently there’s a WebM-blessed way[1] of embedding WebVTT ( = SRT + UTF-8 − decimal commas) now? Which is of course different[2] from the more recent Matroska.org-blessed way[3], sigh. [1] https://www.webmproject.org/docs/container/#webvtt-guidelines https://www.webmproject.org/docs/container/#webvtt-guideline... [2] https://trac.ffmpeg.org/ticket/5641 https://trac.ffmpeg.org/ticket/5641 [3] https://matroska.org/technical/codec_specs.html#s_textwebvtt https://matroska.org/technical/codec_specs.html#s_textwebvtt

Lammy 3y ago
> I don’t think those are appropriate for the Web, what with all the font issues Fun fact: several broadcast standards use Bitstream TrueDoc Portable Font Resource, which was supported for embedded web fonts way back in Netscape 4: https://people.apache.org/~jim/NewArchitect/webrevu/1997/11_07/webauthors/11_07_97_2.html https://people.apache.org/~jim/NewArchitect/webrevu/1997/11_... https://web.archive.org/web/20040407162455/http://www.bitstream.com/categories/developer/truedoc/pfrspec.html https://web.archive.org/web/20040407162455/http://www.bitstr... “The PFR specification defines the Bitstream portable font resource (PFR), which is a compact, platform-independent format for representing high-quality, scalable outline fonts. Many independent organizations responsible for setting digital TV standards have adopted the PFR font format as their standard font format, including: — ATSC (Advanced Television Systems Committee) — DAVIC (Digital Audio Visual Council) — DVB (Digital Video Broadcasting) — DTG (Digital TV Group) — MHP (Multimedia Home Platform) — ISO/IEC 16500-6:1999 — OCAP (OpenCable Application Platform)”
gsich 3y ago
All text based subtitles share the (non-)issue of encoding. Nothing wrong with SRT, it's UTF8 in Mkv anyway.