Need help with model.classifyGif()

[edsumpena]

Hi, I'm building a server on node.js to handle NSFW gifs. However, I've run into some error messages and I'm not sure how to resolve them.

(node:4365) UnhandledPromiseRejectionWarning: Error: "url" option is required.
at Object.gifFrames [as default] (/home/runner/HandmadeSeparateProjections/node_modules/@nsfw-filter/gif-frames/gif-frames.js:45:12)
at NSFWJS. (/home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:204:60)
at step (/home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:52:23)
at Object.next (/home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:33:53)
at /home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:27:71
at new Promise ()
at __awaiter (/home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:23:12)
at NSFWJS.classifyGif (/home/runner/HandmadeSeparateProjections/node_modules/nsfwjs/dist/index.js:193:16)
at Client. (/home/runner/HandmadeSeparateProjections/index.js:1800:38)

So here's what I have done:

const pic = await axios.get(linkToGif, {
              responseType: 'arraybuffer',
})     // Get the GIF in the form of a buffer (encoded in uint8)

const image = await tf.node.decodeGif(pic.data)     //Decode the GIF using tensorflow

const prediction = await model.classifyGif(image);     //Classify the GIF (This is where the error is thrown)

Can anyone please help me out? Is there anywhere I can find sample code to GIF classification? Thank you in advance.

[GantMan]

Pinging @YegorZaremba - But I'll see about taking a look next week if he doesn't get a chance to look at this.

I should def include a node sample for gifs in the examples folder.

[edsumpena]

That sounds great. Thank you for your quick response!

[yzevm]

Hi @edsumpena Here is test for classifyGif /~https://github.com/infinitered/nsfwjs/blob/master/__tests__/classifyGif.ts#L43

According to error /~https://github.com/nsfw-filter/gif-frames/blob/master/gif-frames.js#L45, It looks like your url: gif is empty /~https://github.com/infinitered/nsfwjs/blob/master/src/index.ts#L208

could you pls write result of this for me

const image = await tf.node.decodeGif(pic.data)  
console.log(Buffer.isBuffer(image))

Related: #431

[edsumpena]

Hi @YegorZaremba, I have run the log command. It returns "false". I'm assuming that it should return "true"?

[yzevm]

@edsumpena I think you should skip decoding gif by tenserflow and pass buffer as is. We will improve this step for Node.js #431 (comment)

This code also runs in browsers. Browsers don't have some Node.js stuff. I plan to do separate logic in this lib for browsers and Node.js in the future

[edsumpena]

I have run the code without tf.node.decodeGif(pic.data) and it works. Thank you for your help!