writer.commit()
from mindspore.mindrecord import FileWriter
from mindspore import dataset as ds
ds.config.set_num_parallel_workers(8)
# 定义一个schema,为双重字典的嵌套，file_name对{"type": "string"}，label对{"type": "int32"}
# data对{"type": "bytes"}，我们需要将写入的数据data按照schema的格式给出
cv_schema_json = {"file_name": {"type": "string"}, "label": {"type": "int32"}, "data": {"type": "bytes"}}
# data为要写入MindRecord的数据，可以将其与cv_schema_json比较验证它的格式，图片以二进制流给出
data = [{"file_name": "1.jpg", "label": 0, "data": b"\x10c\xb3w\xa8\xee$o&<q\x8c\x8e(\xa2\x90\x90\x96\xbc\xb1\x1e\xd4QER\x13?\xff\xd9"},
{"file_name": "2.jpg", "label": 56, "data": b"\xe6\xda\xd1\xae\x07\xb8>\xd4\x00\xf8\x129\x15\xd9\xf2q\xc0\xa2\x91YFUO\x1dsE1\x1ep"},
{"file_name": "3.jpg", "label": 99, "data": b"\xaf\xafU<\xb8|6\xbd}\xc1\x99[\xeaj+\x8f\x84\xd3\xcc\xa0,i\xbb\xb9-\xcdz\xecp{T\xb1\xdb"}]
# 添加索引
indexes = ["file_name", "label"]
# 创建4个MindRecod文件，又含有索引，所以最后又8个MindRecord文件，分别为test.mindrecord0、
# test.mindrecord0.db、test.mindrecord1、test.mindrecord1.db、test.mindrecord2、
# test.mindrecord2.db、test.mindrecord3、test.mindrecord3.db
# 它被称为MindSpore数据集，test.mindrecord0为数据文件，test.mindrecord0.db为索引文件
writer = FileWriter(file_name="test.mindrecord", shard_num=2)
writer.add_schema(cv_schema_json, "test_schema")
writer.add_index(indexes)
writer.write_raw_data(data)
# 将最终内存写入磁盘
writer.commit()
最后一步报错
writer.commit()
File "E:\ProgramData\Anaconda3\envs\mindspore\lib\site-packages\mindspore\mindrecord\filewriter.py", line 391, in commit
self._generator.build()
File "E:\ProgramData\Anaconda3\envs\mindspore\lib\site-packages\mindspore\mindrecord\shardindexgenerator.py", line 54, in build
ret = self._generator.build()
RuntimeError: Unexpected error. Failed to open file, file path: E:\大三上\深度学习\models-master\official\cv\ssd\MindRecord_COCO\test.mindrecord0
Line of code : 66
File : D:\jenkins\agent-working-dir\workspace\Compile_CPU_Windows\mindspore\mindspore\ccsrc\minddata\mindrecord\meta\shard_header.cc
Process finished with exit code 1
【截图信息】
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应该是文件路径中有中文的文件夹，请改用英文命名试试
