[opus] support free WEBP images in Opus files

[Emily Bowman]

Oops, meant to add, there's absolutely no restrictions on the format of any
picture block, either, and opusenc will already just add whatever gets
passed in without even trying to verify anything about the file format.
That's up to tagging and playback software to support; foobar2000, for
instance, only supports formats that are part of Windows' GDIplus library.

On Fri, Jun 21, 2019 at 6:21 AM Emily Bowman <silverbacknet at gmail.com>
wrote:

> Ogg files can have multiple COVERART or METADATA_BLOCK_PICTURE tags
> without a problem, though. METADATA_BLOCK_PICTURE is part of the FLAC spec,
> not OGG (and definitely not Opus), and you can have as many
> METADATA_BLOCK_PICTURE blocks as you want, so even if each can only store a
> single picture I'm very unclear about what the problem is? Opus isn't
> related to its containers, though, those are separate lists.
>
> On Fri, Jun 21, 2019 at 12:56 AM Oliver Petry <oliverpetry at gmx.de> wrote:
>
>> WebP (imagepart of VP9) is better then JPG
>> AVIF (imagepart of VPX/AV1) is better then HEIF
>>
>> please support in OPUS file for album arts
>> more then JPG and PNG...
>>
>> WebP and AVIF are free imageformats can store multiple images
>> thats good for the problem with METADATA_BLOCK_PICTURE
>> only can store one file.
>>
>> i try to push some devs of player and converter to support this too.
>>
>> wbr from berlin
>> _______________________________________________
>> opus mailing list
>> opus at xiph.org
>> http://lists.xiph.org/mailman/listinfo/opus
>>
>
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