[FFmpeg-devel] [PATCH] Add four metadata tags to 3gp files
John Kelley
john
Tue Sep 9 10:48:17 CEST 2008
> # FFMpeg generated tags (mp4dump)
>
> type udta
> type titl
> data = <24 bytes>
> 00 00 00 00 15 c7 00 4d 00 59 00 20 00 54 00 49
> 00 54 00 4c 00 45 00 00
> type auth
> data = <20 bytes>
> 00 00 00 00 15 c7 00 4d 00 45 00 20 00 53 00 41
> 00 4e 00 00
> type dscp
> data = <20 bytes>
> 00 00 00 00 15 c7 65 e5 67 2c 8a 9e 30 c6 30 b9
> 30 c8 00 00
> type cprt
> type ?
> data = <24 bytes>
> 00 59 00 20 00 43 00 4f 00 50 00 59 00 52 00 49
> 00 47 00 48 00 54 00 00
> type yrrc
> data = <6 bytes> 00 00 00 00 00 00
>
> # AtomicParsley generated tags (mp4dump)
>
> type udta
> type cprt
> type ?MY
> data = <11 bytes> 20 43 4f 50 59 52 49 47 48 54 00
> type dscp
> data = <25 bytes>
> 00 00 00 00 2a 0e e6 97 a5 e6 9c ac e8 aa 9e e3
> 83 86 e3 82 b9 e3 83 88 00
> type titl
> data = <15 bytes> 00 00 00 00 15 c7 4d 59 20 54 49 54 4c 45 00
> type auth
> data = <13 bytes> 00 00 00 00 2a 0e 4d 45 20 53 41 4e 00
> type free
> type mdat
>
>
> If someone can point me the difference and/or how to generate
> AtomicParsley format I will try to patch ffmpeg to generate similar
> tags.
FFmpeg is writing the strings in Unicode and AtomicParsely is writing
them in plain ASCII.
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