search for: sdrm

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2024 Oct 16
1
C API: How to get a seektable for very long files?
...s. The fields in this application-specific metadata block could document how many files there are in total; which file in the sequence the current file is; what the actual sample rate is; how many bits in each sample are valid (to a finer degree than FLAC registers). One thing to do is start this SDRm block with a revision number, so, if the community adds more fields later, then supporting software will know which fields to expect. I don't think that extra metadata can get around limitations in total samples or seek table fields. One topic that I never studied is how FLAC differs between f...
2024 Oct 15
2
C API: How to get a seektable for very long files?
Another SDR user here. It was me who reported the bug where total samples wraps around on overflow. FLAC performs extremely well on SDR samples, both speed and compression ratio. In my testing it outperforms any other free lossless codec by a large margin, being 20% smaller and 10% faster than the next best (which was ffv1). The problem is the metadata, and not just total samples. We also
2009 Apr 30
6
[LLVMdev] RFC: AVX Pattern Specification [LONG]
...(ins FR64:$src1, FR64:$src2), !strconcat(OpcodeStr, "sd\t{$src2, $dst|$dst, $src2}"), [(set FR64:$dst, (OpNode FR64:$src1, FR64:$src2))]> { let isCommutable = Commutable; } // Scalar operation, reg+mem. def SDrm : SDI<opc, MRMSrcMem, (outs FR64:$dst), (ins FR64:$src1, f64mem:$src2), !strconcat(OpcodeStr, "sd\t{$src2, $dst|$dst, $src2}"), [(set FR64:$dst, (OpNode FR64:$src1, (load addr:$src2)))]>; // Vect...