Torch Object Storage
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Torch Object StorageSDK ReferenceJavaData ProcessingVideo ProcessingPersistent Storage of Images Extracted from Video Frames (Java SDK)
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Persistent Storage of Images Extracted from Video Frames (Java SDK)
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TOS supports saving images extracted from video frames to a specified storage bucket. This article explains how to use the TOS Java SDK to save images captured from video frames to a specified storage bucket.
Category
Only Java SDK version 2.6.2 supports the persistent storage of video frame capture images.
Sample Code
The following code demonstrates how to extract the video frame at 300 milliseconds, name the resulting image temp.jpg, and save it to the bucket-example storage bucket.
import com.fasterxml.jackson.core.JacksonException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.volcengine.tos.TOSV2;
import com.volcengine.tos.TOSV2ClientBuilder;
import com.volcengine.tos.TosClientException;
import com.volcengine.tos.TosServerException;
import com.volcengine.tos.internal.util.TosUtils;
import com.volcengine.tos.model.object.GetObjectV2Input;
import com.volcengine.tos.model.object.GetObjectV2Output;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
public class VideoSnapshotSaveAsExample {
static class SaveAsResult {
String bucket;
String fileSize;
String object;
String status;
@Override
public String toString() {
return "SaveAsResult{" +
"bucket='" + bucket + '\'' +
", fileSize='" + fileSize + '\'' +
", object='" + object + '\'' +
", status='" + status + '\'' +
'}';
}
}
public static void main(String[] args) {
String endpoint = "your endpoint";
String region = "your region";
String accessKey = System.getenv("TOS_ACCESS_KEY");
String secretKey = System.getenv("TOS_SECRET_KEY");
String bucketName = "bucket-example";
String objectKey = "video.mp4";
String style = "video/snapshot,t_300";
String saveBucket = "bucket-example";
String saveObject = "temp.jpg";
TOSV2 tos = new TOSV2ClientBuilder().build(region, endpoint, accessKey, secretKey);
try {
GetObjectV2Input input = new GetObjectV2Input().setBucket(bucketName).setKey(objectKey).setProcess(style)
.setSaveBucket(Base64.getUrlEncoder().encodeToString(saveBucket.getBytes(StandardCharsets.UTF_8)))
.setSaveObject(Base64.getUrlEncoder().encodeToString(saveObject.getBytes(StandardCharsets.UTF_8)));
try (ByteArrayOutputStream stream = new ByteArrayOutputStream();
GetObjectV2Output output = tos.getObject(input)) {
byte[] buffer = new byte[1024];
int length;
while ((length = output.getContent().read(buffer)) != -1) {
stream.write(buffer, 0, length);
}
String respBody = stream.toString("UTF-8");
System.out.println("Image inspect success, inspect info is " + respBody);
SaveAsResult result = TosUtils.getJsonMapper().readValue(respBody, new TypeReference<SaveAsResult>() {
});
System.out.println(result.toString());
} catch (JacksonException e) {
System.out.println("parse response data failed");
e.printStackTrace();
} catch (IOException e) {
System.out.println("read response data failed");
e.printStackTrace();
}
} catch (TosClientException e) {
System.out.println("Image saveAs failed");
System.out.println("Message: " + e.getMessage());
if (e.getCause() != null) {
e.getCause().printStackTrace();
}
} catch (TosServerException e) {
System.out.println("Image saveAs failed");
System.out.println("StatusCode: " + e.getStatusCode());
System.out.println("Code: " + e.getCode());
System.out.println("Message: " + e.getMessage());
System.out.println("RequestID: " + e.getRequestID());
} catch (Throwable t) {
System.out.println("Image saveAs failed");
System.out.println("unexpected exception, message: " + t.getMessage());
}
}
}
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Last updated: 2025.09.22 11:34:18
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