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Diffstat (limited to 'tensorflow/docs_src/api_guides/python/python_io.md')
| -rw-r--r-- | tensorflow/docs_src/api_guides/python/python_io.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/tensorflow/docs_src/api_guides/python/python_io.md b/tensorflow/docs_src/api_guides/python/python_io.md index a5444408fe..06282e49d5 100644 --- a/tensorflow/docs_src/api_guides/python/python_io.md +++ b/tensorflow/docs_src/api_guides/python/python_io.md @@ -14,16 +14,16 @@ suitable if fast sharding or other non-sequential access is desired. ## TFRecords Format Details -A TFRecords file contains a sequence of strings with CRC hashes. Each record -has the format +A TFRecords file contains a sequence of strings with CRC32C (32-bit CRC using +the Castagnoli polynomial) 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](https://en.wikipedia.org/wiki/Cyclic_redundancy_check), -and the mask of a CRC is +and the records are concatenated together to produce the file. CRCs are +[described here](https://en.wikipedia.org/wiki/Cyclic_redundancy_check), and +the mask of a CRC is masked_crc = ((crc >> 15) | (crc << 17)) + 0xa282ead8ul |