Add image encoder / decoder to proposed solutions section. #6
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explainer.md
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| A **VideoDecoder** is a TransformStream from EncodedVideoFrame to DecodedVideoFrame. | ||
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| A **VideoTrackWriter** converts a WritableStream of DecodedVideoFrame into a MediaStreamTrack. | ||
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| An **ImageEncoder** is a TransformStream from [ImageData](http://go/mdn/API/ImageData) to EncodedImageData. |
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In the examples below the ImageEncoder/ImageDecoder aren't actually TransformStreams that work on multiple independent images but rather TransformStreams that support streaming decode (e.g., for JPEG progressive enhancement).
Worth discussing the merits of having a single ImageDecoder object that can decode multiple images. It's not quite as obvious as for audio/video where the decoders are stateful. Perhaps it's relevant for representing a hardware image decoder?
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Hi Steve, I've updated the PR based on your feedback. I believe ImageEncoder / ImageDecoder may be stateful because the codec may be configured with codec specific parameters, for example, ImageEncoder({codec: "jpeg", quality: 0.9}). It also makes the API more consistent, because Image is presented to developers just like Audio or Video. And we are also exploring ways of integrating WebAssembly with codecs, so the object may be backed by a WebAssembly program to run the actual codec. What do you think? |
explainer.md
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| A **VideoDecoder** is a TransformStream from EncodedVideoFrame to DecodedVideoFrame. | ||
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| A **VideoTrackWriter** converts a WritableStream of DecodedVideoFrame into a MediaStreamTrack. | ||
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| An **ImageEncoder** encodes a single image from [ImageData](http://go/mdn/API/ImageData) to EncodedImageData. |
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Link to the full url rather than a go link.
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I believe this request is out of date. ImageDecoder is currently being maintained externally (https://github.com/dalecurtis/image-decoder-api), but I do expect it will be merged here eventually. |
There doesn't seem to be anything for I did just open an issue https://github.com/dalecurtis/image-decoder-api/issues/7 . I'll try to follow up & find how we might pursue this. This would be so lovely to get. |
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What is the status on ImageEncoder? The link above is now broken because issues has been disabled. |
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#204 is the tracking issue, but no active plans for it at the moment since |
Hi Peter,
This fixes a few typos and adds image encoding / decoding to the proposed solutions section.
Thanks!
Jose