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Decompressed size functions now handle multiframes and distinguish cases

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- Add ZSTD_findDecompressedSize
    - Traverses multiple frames to find total output size
- Add ZSTD_getFrameContentSize
    - Gets the decompressed size of a single frame by reading header
- Deprecate ZSTD_getDecompressedSize
This commit is contained in:
Sean Purcell
2017-02-08 14:50:10 -08:00
parent 60259eb9a0
commit 4e709712e1
24 changed files with 496 additions and 16 deletions
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tests/zstreamtest.c
+1 -1
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@@ -307,7 +307,7 @@ static int basicUnitTests(U32 seed, double compressibility, ZSTD_customMem custo
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
{ size_t const r = ZSTD_endStream(zc, &outBuff);
if (r != 0) goto _output_error; } /* error, or some data not flushed */
{ unsigned long long origSize = ZSTD_getDecompressedSize(outBuff.dst, outBuff.pos);
{ unsigned long long origSize = ZSTD_findDecompressedSize(outBuff.dst, outBuff.pos);
if ((size_t)origSize != CNBufferSize) goto _output_error; } /* exact original size must be present */
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100);