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Does DASH-IF-IOP v4.1 allows the usage of external Representation Index? I am seeing contradicting clauses.
In 3.2.1. Introduction section, it suggests that it is allowed:
>35 • For on-demand pr…
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I detect an oddity in the specification of the thumbnail image tiles.
1. Image tile adaptation sets are defined as `@contentType="image"` whereas all others are `@mimeType` (plus `@codecs`).
1. Th…
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In src/read.c, when `avifDecoderDataCalcItemPtr()` validates an extent, it performs two checks. Here I use the single-extent case as an example:
```
avifDecoderItemExtent * extent = &item-…
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NOTE 2 in section 3 reads as if it has been heavily edited and it's quite hard to follow.
Suggested rewording:
NOTE 2: In the ISO BMFF byte stream format, whereas codec configurations stored out…
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Please suggest ideas for first round of FAQs entries to be included on the new upcoming CMAF-IF website
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**Describe the issue**
C2PA spec defines `c2pa` box to contain some data which `box_purpose` indicates. But type of `box_pupose` is string.
Type of `string` means to be variable length and be termin…
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The [Segment Parser Loop](https://w3c.github.io/media-source/index.html#sourcebuffer-segment-parser-loop) states the following:
"If the input buffer contains bytes that violate the SourceBuffer byt…
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I am trying things out to see why applications such as gthumb or GIMP are unable to show metadata for JPEG XL files, and as I suspect they use exiv2, I set out to try this directly with exiv2 on the c…
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As we begin to add new formats that follow the ISO Base Media File Format spec, we will begin to see more redundancy in our code. For example, the following formats all follow ISO BMFF: HEIF, MP4, CR3…
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The BSF spec indicates the following about the "File Type Box" (https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-init-segments):
> An ISO BMFF initialization segment is defined in this speci…