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Searched refs:DCT (Results 1 – 13 of 13) sorted by relevance

/external/jpeg/
Dfilelist.doc33 jdct.h Private declarations for forward & reverse DCT subsystems.
68 jccoefct.c Buffer controller for DCT coefficient buffer.
71 jcdctmgr.c DCT manager (DCT implementation selection & control).
72 jfdctint.c Forward DCT using slow-but-accurate integer method.
73 jfdctfst.c Forward DCT using faster, less accurate integer method.
74 jfdctflt.c Forward DCT using floating-point arithmetic.
85 jdcoefct.c Buffer controller for DCT coefficient buffer.
91 jidctint.c Inverse DCT using slow-but-accurate integer method.
92 jidctfst.c Inverse DCT using faster, less accurate integer method.
93 jidctflt.c Inverse DCT using floating-point arithmetic.
Dstructure.doc22 A "coefficient" is a frequency coefficient (a DCT transform output number).
46 sequential, and progressive DCT processes. Hierarchical processes are not
138 * MCU assembly, DCT, quantization.
151 * Dequantization, inverse DCT, MCU disassembly.
323 | |-- Forward DCT, quantize
360 * Coefficient controller: buffer controller for the DCT-coefficient data.
361 This controller handles MCU assembly, including insertion of dummy DCT
368 * Forward DCT and quantization: Perform DCT, quantize, and emit coefficients.
369 Works on one or more DCT blocks at a time. (Note: the coefficients are now
376 For progressive JPEG, the same DCT blocks are fed to the entropy coder
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Djconfig.sas26 #define SHORTxSHORT_32 /* produces better DCT code with SAS C */
Djconfig.manx24 #define SHORTxSHORT_32 /* produces better DCT code with Aztec C */
Djconfig.mc630 #define SHORTxLCONST_32 /* enable compiler-specific DCT optimization */
Dusage.doc143 -dct int Use integer DCT method (default).
144 -dct fast Use fast integer DCT (less accurate).
145 -dct float Use floating-point DCT method.
266 -dct int Use integer DCT method (default).
267 -dct fast Use fast integer DCT (less accurate).
268 -dct float Use floating-point DCT method.
409 jpegtran works by rearranging the compressed data (DCT coefficients), without
446 transform complete blocks of DCT coefficient data in the desired way.
Dinstall.doc482 remove some of the DCT methods: in particular, the "IFAST" method may not be
498 The integer DCT routines perform a lot of multiplications. These
511 best way to check this, as the DCT will be the largest fraction of the runtime
517 that the float DCT method is faster than the integer DCT methods, even
519 make the float DCT be the default method. (The only objection to this is
520 that float DCT results may vary slightly across machines.) To do that, add
600 To use the 68881/68882 coprocessor for the floating point DCT, add the
603 coprocessor, you may prefer to remove the float DCT code by undefining
1047 reportedly speeds up the float DCT method substantially, enough to make it
1049 method). If you use -mips2, you may want to alter the default DCT method to
Dchange.log84 DCT coefficient quantization tables are now stored in normal array order
121 reading and writing of JPEG files as DCT coefficient arrays. This ability
Dlibjpeg.doc47 Really raw data: DCT coefficients
826 in future IJG releases as more is learned about DCT quantization.
842 conforming to the Adobe PostScript DCT conventions, but we do not
877 Selects the algorithm used for the DCT step. Choices are:
1131 Selects the algorithm used for the DCT step. Choices are the same
1748 When scan_info is not NULL, the compression library will store DCT'd data
2012 For example, one could use a fast DCT method for early scans, changing
2497 the last column and/or row). The data must be padded to a multiple of a DCT
2501 images, the standard image size is usually a multiple of the DCT block size,
2538 factors and image sizes, additional dummy DCT blocks are inserted to make
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/external/llvm/lib/IR/
DDebugInfo.cpp165 if (auto *DCT = dyn_cast<MDCompositeTypeBase>(DT)) { in processType() local
166 processType(DCT->getBaseType().resolve(TypeIdentifierMap)); in processType()
167 if (auto *ST = dyn_cast<MDSubroutineType>(DCT)) { in processType()
172 for (Metadata *D : DCT->getElements()) { in processType()
/external/libvpx/libvpx/vpx_dsp/x86/
Dinv_txfm_ssse3_x86_64.asm155 ; full inverse 8x8 2D-DCT transform
188 ; inverse 8x8 2D-DCT transform with only first 10 coeffs non-zero
Dfwd_txfm_ssse3_x86_64.asm87 ; 1D forward 8x8 DCT transform
/external/skia/experimental/PdfViewer/pdfparser/native/
DSkPdfNativeTokenizer.cpp1085 HANDLE_NAME_ABBR(value, DCTDecode, DCT); in inlineImageValueAbbreviationExpand()