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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
2017-02-07 13:50:09 -08:00
parent 60259eb9a0
commit 4e709712e1
24 changed files with 496 additions and 16 deletions
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2
examples/dictionary_decompression.c
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@ -76,7 +76,7 @@ static void decompress(const char* fname, const ZSTD_DDict* ddict)
{
size_t cSize;
void* const cBuff = loadFile_orDie(fname, &cSize);
unsigned long long const rSize = ZSTD_getDecompressedSize(cBuff, cSize);
unsigned long long const rSize = ZSTD_findDecompressedSize(cBuff, cSize);
if (rSize==0) {
fprintf(stderr, "%s : original size unknown \n", fname);
exit(6);

2
examples/simple_decompression.c
View File

@ -63,7 +63,7 @@ static void decompress(const char* fname)
{
size_t cSize;
void* const cBuff = loadFile_X(fname, &cSize);
unsigned long long const rSize = ZSTD_getDecompressedSize(cBuff, cSize);
unsigned long long const rSize = ZSTD_findDecompressedSize(cBuff, cSize);
if (rSize==0) {
printf("%s : original size unknown. Use streaming decompression instead. \n", fname);
exit(5);