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feat: add streaming automl classification samples (#284)
* Add streaming automl + test * Make the thing work, with lots of debugs * passing tests, Remove debug statements + lint * Fix the license quotes * Revert license quotes * Remove commas from license * Remove commas take 2 * fix typo * Fix header * Update model * Change video codec, add comment
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video-intelligence/analyze-streaming-automl-classification.js
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/** | ||
* Copyright 2019 Google LLC | ||
* Licensed under the Apache License, Version 2.0 (the `License`); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an `AS IS` BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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'use strict'; | ||
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async function main( | ||
path = 'YOUR_LOCAL_FILE', | ||
projectId = 'YOUR_GCP_PROJECT', | ||
modelId = 'YOUR_AUTOML_MODELID' | ||
) { | ||
// [START video_streaming_automl_classification_beta] | ||
/** | ||
* TODO(developer): Uncomment these variables before running the sample. | ||
*/ | ||
// const path = 'Local file to analyze, e.g. ./my-file.mp4'; | ||
// const modelId = 'autoMl model' | ||
// const projectId = 'Your GCP Project' | ||
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const { | ||
StreamingVideoIntelligenceServiceClient, | ||
} = require('@google-cloud/video-intelligence').v1p3beta1; | ||
const fs = require('fs'); | ||
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// Instantiates a client | ||
const client = new StreamingVideoIntelligenceServiceClient(); | ||
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// Streaming configuration | ||
const modelPath = `projects/${projectId}/locations/us-central1/models/${modelId}`; | ||
const configRequest = { | ||
videoConfig: { | ||
feature: 'STREAMING_AUTOML_CLASSIFICATION', | ||
automlClassificationConfig: { | ||
modelName: modelPath, | ||
}, | ||
}, | ||
}; | ||
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const readStream = fs.createReadStream(path, { | ||
highWaterMark: 5 * 1024 * 1024, //chunk size set to 5MB (recommended less than 10MB) | ||
encoding: 'base64', | ||
}); | ||
//Load file content | ||
// Note: Input videos must have supported video codecs. See | ||
// https://cloud.google.com/video-intelligence/docs/streaming/streaming#supported_video_codecs | ||
// for more details. | ||
const chunks = []; | ||
readStream | ||
.on('data', chunk => { | ||
const request = { | ||
inputContent: chunk.toString(), | ||
}; | ||
chunks.push(request); | ||
}) | ||
.on('close', function() { | ||
// configRequest should be the first in the stream of requests | ||
stream.write(configRequest); | ||
for (let i = 0; i < chunks.length; i++) { | ||
stream.write(chunks[i]); | ||
} | ||
stream.end(); | ||
}); | ||
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const stream = client | ||
.streamingAnnotateVideo() | ||
.on('data', response => { | ||
//Gets annotations for video | ||
const annotations = response.annotationResults; | ||
const labels = annotations.labelAnnotations; | ||
labels.forEach(label => { | ||
console.log( | ||
`Label ${label.entity.description} occurs at: ${label.frames[0] | ||
.timeOffset.seconds || 0}` + | ||
`.${(label.frames[0].timeOffset.nanos / 1e6).toFixed(0)}s` | ||
); | ||
console.log(` Confidence: ${label.frames[0].confidence}`); | ||
}); | ||
}) | ||
.on('error', response => { | ||
console.error(response); | ||
}); | ||
// [END video_streaming_automl_classification_beta] | ||
} | ||
main(...process.argv.slice(2)).catch(console.error()); |
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video-intelligence/system-test/analyze-streaming-automl-classification.test.js
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/** | ||
* Copyright 2019 Google LLC | ||
* Licensed under the Apache License, Version 2.0 (the `License`); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an `AS IS` BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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'use strict'; | ||
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const cp = require('child_process'); | ||
const {assert} = require('chai'); | ||
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const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'}); | ||
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const cmd = `node analyze-streaming-automl-classification.js`; | ||
const modelId = `VCN3094808572840640512`; | ||
const project = process.env.GCLOUD_PROJECT; | ||
const file = 'resources/cat.mp4'; | ||
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describe('streaming automl classification', () => { | ||
it('should classify the action in the streaming video', async () => { | ||
const output = execSync(`${cmd} ${file} ${project} ${modelId}`); | ||
assert.match(output, /brush_hair/); | ||
assert.match(output, /cartwheel/); | ||
assert.match(output, /Confidence: \d+\.\d+/); | ||
}); | ||
}); |