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Fix crash in header parsing when trace count is parsing block_size + 1 #477

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merged 2 commits into from
Dec 6, 2024
Merged

Fix crash in header parsing when trace count is parsing block_size + 1 #477

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2592341
handle singleton edge case when trace_range only has 1 trace.
tasansal Dec 6, 2024
76ba5ea
reuse variable
tasansal Dec 6, 2024
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8 changes: 4 additions & 4 deletions src/mdio/segy/_workers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,11 +53,11 @@ def header_scan_worker(
non_void_fields = [(name, dtype) for name, (dtype, _) in fields.items()]
new_dtype = np.dtype(non_void_fields)

# Allocate empty memory and assign non-void fields
trace_header_filtered = np.empty_like(trace_header, dtype=new_dtype)
trace_header_filtered[:] = trace_header
# Copy to non-padded memory, ndmin is to handle the case where there is
# 1 trace in block (singleton) so we can concat and assign stuff later.
trace_header = np.array(trace_header, dtype=new_dtype, ndmin=1)

return cast(HeaderArray, trace_header_filtered)
return cast(HeaderArray, trace_header)


def trace_worker(
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