Google Python 中的 Cloud Video Intelligence API - 无法 运行 对一个文件夹中的多个视频进行对象跟踪

Question

我正在尝试 运行 对包含多个视频的文件夹进行对象跟踪。我的存储桶中有 5 个视频，按照此处的文档，它建议使用通配符 (*) 运算符。但是，当我 运行 整个脚本时，只有 1 个视频被注释，而不是包含 5 个视频的整个文件夹。此外，response2.json 不会在我的 GCS 存储桶中创建为 output_uri。

要识别多个视频，视频 URI 的对象 ID 中可能包含通配符。支持的通配符：'*'匹配0个或多个字符； ‘?’ 匹配 1 个字符。 https://googleapis.dev/python/videointelligence/latest/gapic/v1/types.html

这是我在 input_uri 代码中所做的：

gcs_uri = 'gs://video_intel/*'

如果您查看屏幕截图，它应该是存储桶 ID 名称并在同一文件夹中显示多个视频。

任何人都可以帮助解决这个问题。谢谢。

完整脚本：

import os
os.environ['GOOGLE_APPLICATION_CREDENTIALS']='poc-video-intelligence-da5d4d52cb97.json'
"""Object tracking in a video stored on GCS."""
from google.cloud import videointelligence

video_client = videointelligence.VideoIntelligenceServiceClient()
features = [videointelligence.enums.Feature.OBJECT_TRACKING]
gcs_uri = 'gs://video_intel/*'
output_uri = 'gs://video_intel/response2.json'

operation = video_client.annotate_video(input_uri=gcs_uri, features=features, output_uri=output_uri)
print("\nProcessing video for object annotations.")

result = operation.result(timeout=300)
print("\nFinished processing.\n")

# The first result is retrieved because a single video was processed.
object_annotations = result.annotation_results[0].object_annotations

for object_annotation in object_annotations:
    print("Entity description: {}".format(object_annotation.entity.description))
    if object_annotation.entity.entity_id:
        print("Entity id: {}".format(object_annotation.entity.entity_id))

    print(
        "Segment: {}s to {}s".format(
            object_annotation.segment.start_time_offset.seconds
            + object_annotation.segment.start_time_offset.nanos / 1e9,
            object_annotation.segment.end_time_offset.seconds
            + object_annotation.segment.end_time_offset.nanos / 1e9,
        )
    )

    print("Confidence: {}".format(object_annotation.confidence))

    # Here we print only the bounding box of the first frame in the segment
    frame = object_annotation.frames[0]
    box = frame.normalized_bounding_box
    print(
        "Time offset of the first frame: {}s".format(
            frame.time_offset.seconds + frame.time_offset.nanos / 1e9
        )
    )
    print("Bounding box position:")
    print("\tleft  : {}".format(box.left))
    print("\ttop   : {}".format(box.top))
    print("\tright : {}".format(box.right))
    print("\tbottom: {}".format(box.bottom))
    print("\n")

Answer 1

请将'gcs_uri = 'gs://video_intel/''修改为gcs_uri = 'gs://video_intel/.*'