A TFRecords file represents a sequence of (binary) strings. The format is not random access, so it is suitable for streaming large amounts of data but not suitable if fast sharding or other non-sequential access is desired.
tf.python_io.TFRecordWriter
tf.python_io.tf_record_iterator
tf.python_io.TFRecordCompressionType
tf.python_io.TFRecordOptions
A TFRecords file contains a sequence of strings with CRC hashes. Each record has the format
uint64 length uint32 masked_crc32_of_length byte data[length] uint32 masked_crc32_of_data
and the records are concatenated together to produce the file. The CRC32s are described here, and the mask of a CRC is
masked_crc = ((crc >> 15) | (crc << 17)) + 0xa282ead8ul
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Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_guides/python/python_io