Guidelines on how to embed TTML in MP4 and DASH
After a discussion at IBC 2015 with our partners from BBC, IRT and EBU, we found that there was a lot of confusion when it came to distributing TTML content in ISOBMF/MP4, especially with MPEG-DASH. Practical use-cases include HbbTV 2.0 which mandates TTML/EBU-TT-D profile. Since Cyril Concolato from the GPAC team is also an editor of the according specification, we thought it could be useful to edit some guidelines.
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