[FFmpeg-devel] Yamaha SMAF 'CNTI' chunk is wrong.

Carl Eugen Hoyos cehoyos at ag.or.at
Sat Jan 5 23:14:40 CET 2013

内田佳久 <yoshihisa.uchida <at> gmail.com> writes:

> For Yamaha SMAF,  Contents Info chunk ('CNTI') includes only following members:
>   - Contents Class
>   - Contents Type
>   - Contents Code Type
>   - Copy Status
>   - Copy Counts
> (see http://smaf-yamaha.com/what/s52.html)
> But, in the current ffmpeg, 'CNTI' includes metadata ("VN:libavcodec,").
> According to SMAF Specifications Optional Data Chunk
> (http://smaf-yamaha.com/what/s52.html),

Should be: http://smaf-yamaha.com/what/s53.html

> I corrected that metadata include Optional Data Chunk ('OPDA').

I applied this patch after reading the specification 
and old mailing list threads that claim that the 
files have never played on real hardware.

Carl Eugen

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