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analyze_labels_file.php
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analyze_labels_file.php
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<?php
/**
* Copyright 2016 Google Inc.
*
* 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.
*/
namespace Google\Cloud\Samples\VideoIntelligence;
// [START video_analyze_labels]
use Google\Cloud\VideoIntelligence\V1\AnnotateVideoRequest;
use Google\Cloud\VideoIntelligence\V1\Client\VideoIntelligenceServiceClient;
use Google\Cloud\VideoIntelligence\V1\Feature;
/**
* @param string $path File path to a video file to analyze
* @param int $pollingIntervalSeconds
*/
function analyze_labels_file(string $path, int $pollingIntervalSeconds = 0)
{
# Instantiate a client.
$video = new VideoIntelligenceServiceClient();
# Read the local video file
$inputContent = file_get_contents($path);
# Execute a request.
$features = [Feature::LABEL_DETECTION];
$request = (new AnnotateVideoRequest())
->setInputContent($inputContent)
->setFeatures($features);
$operation = $video->annotateVideo($request);
# Wait for the request to complete.
$operation->pollUntilComplete([
'pollingIntervalSeconds' => $pollingIntervalSeconds
]);
# Print the results.
if ($operation->operationSucceeded()) {
$results = $operation->getResult()->getAnnotationResults()[0];
# Process video/segment level label annotations
foreach ($results->getSegmentLabelAnnotations() as $label) {
printf('Video label description: %s' . PHP_EOL, $label->getEntity()->getDescription());
foreach ($label->getCategoryEntities() as $categoryEntity) {
printf(' Category: %s' . PHP_EOL, $categoryEntity->getDescription());
}
foreach ($label->getSegments() as $segment) {
$start = $segment->getSegment()->getStartTimeOffset();
$end = $segment->getSegment()->getEndTimeOffset();
printf(' Segment: %ss to %ss' . PHP_EOL,
$start->getSeconds() + $start->getNanos() / 1000000000.0,
$end->getSeconds() + $end->getNanos() / 1000000000.0);
printf(' Confidence: %f' . PHP_EOL, $segment->getConfidence());
}
}
print(PHP_EOL);
# Process shot level label annotations
foreach ($results->getShotLabelAnnotations() as $label) {
printf('Shot label description: %s' . PHP_EOL, $label->getEntity()->getDescription());
foreach ($label->getCategoryEntities() as $categoryEntity) {
printf(' Category: %s' . PHP_EOL, $categoryEntity->getDescription());
}
foreach ($label->getSegments() as $shot) {
$start = $shot->getSegment()->getStartTimeOffset();
$end = $shot->getSegment()->getEndTimeOffset();
printf(' Shot: %ss to %ss' . PHP_EOL,
$start->getSeconds() + $start->getNanos() / 1000000000.0,
$end->getSeconds() + $end->getNanos() / 1000000000.0);
printf(' Confidence: %f' . PHP_EOL, $shot->getConfidence());
}
}
print(PHP_EOL);
} else {
print_r($operation->getError());
}
}
// [END video_analyze_labels]
// The following 2 lines are only needed to run the samples
require_once __DIR__ . '/../../testing/sample_helpers.php';
\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);