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review.blissroms.org / platform_external_libjpeg-turbo / 8ce2c9119a995ef6280f8bba375aac7effb9b571
commit8ce2c9119a995ef6280f8bba375aac7effb9b571[log] [tgz]
authorDRC <information@libjpeg-turbo.org>Mon Aug 01 11:22:24 2016 -0500
committerDRC <information@libjpeg-turbo.org>Mon Aug 01 11:59:31 2016 -0500
treece43d1a94912002a817d280f1de03d38fc10aafc
parentdb04435165f74d7ddfe560fa2f2513bd8cc254e4 [diff]
TurboJPEG: Decomp. 4:2:2/4:4:0 JPEGs w/unusual SFs

Normally, 4:2:2 JPEGs have horizontal x vertical luminance,chrominance
sampling factors of 2x1,1x1, and 4:4:0 JPEGs have horizontal x vertical
luminance,chrominance sampling factors of 1x2,1x1.  However, it is
technically legal to create 4:2:2 JPEGs with sampling factors of
2x2,1x2 and 4:4:0 JPEGs with sampling factors of 2x2,2x1, since the
sums of the products of those sampling factors (2x2 + 1x2 + 1x2 and
2x2 + 2x1 + 2x1) are still <= 10.  The libjpeg API correctly decodes
such images, so the TurboJPEG API should as well.

Fixes #92
2 files changed
tree: ce43d1a94912002a817d280f1de03d38fc10aafc
  1. cmakescripts/
  2. doc/
  3. java/
  4. md5/
  5. release/
  6. sharedlib/
  7. simd/
  8. testimages/
  9. win/
  10. .gitignore
  11. acinclude.m4
  12. bmp.c
  13. bmp.h
  14. BUILDING.md
  15. cderror.h
  16. cdjpeg.c
  17. cdjpeg.h
  18. change.log
  19. ChangeLog.md
  20. cjpeg.1
  21. cjpeg.c
  22. CMakeLists.txt
  23. coderules.txt
  24. configure.ac
  25. djpeg.1
  26. djpeg.c
  27. doxygen-extra.css
  28. doxygen.config
  29. example.c
  30. jaricom.c
  31. jcapimin.c
  32. jcapistd.c
  33. jcarith.c
  34. jccoefct.c
  35. jccolext.c
  36. jccolor.c
  37. jcdctmgr.c
  38. jchuff.c
  39. jchuff.h
  40. jcinit.c
  41. jcmainct.c
  42. jcmarker.c
  43. jcmaster.c
  44. jcomapi.c
  45. jconfig.h.in
  46. jconfig.txt
  47. jconfigint.h.in
  48. jcparam.c
  49. jcphuff.c
  50. jcprepct.c
  51. jcsample.c
  52. jcstest.c
  53. jctrans.c
  54. jdapimin.c
  55. jdapistd.c
  56. jdarith.c
  57. jdatadst-tj.c
  58. jdatadst.c
  59. jdatasrc-tj.c
  60. jdatasrc.c
  61. jdcoefct.c
  62. jdcoefct.h
  63. jdcol565.c
  64. jdcolext.c
  65. jdcolor.c
  66. jdct.h
  67. jddctmgr.c
  68. jdhuff.c
  69. jdhuff.h
  70. jdinput.c
  71. jdmainct.c
  72. jdmainct.h
  73. jdmarker.c
  74. jdmaster.c
  75. jdmaster.h
  76. jdmerge.c
  77. jdmrg565.c
  78. jdmrgext.c
  79. jdphuff.c
  80. jdpostct.c
  81. jdsample.c
  82. jdsample.h
  83. jdtrans.c
  84. jerror.c
  85. jerror.h
  86. jfdctflt.c
  87. jfdctfst.c
  88. jfdctint.c
  89. jidctflt.c
  90. jidctfst.c
  91. jidctint.c
  92. jidctred.c
  93. jinclude.h
  94. jmemmgr.c
  95. jmemnobs.c
  96. jmemsys.h
  97. jmorecfg.h
  98. jpeg_nbits_table.h
  99. jpegcomp.h
  100. jpegint.h
  101. jpeglib.h
  102. jpegtran.1
  103. jpegtran.c
  104. jquant1.c
  105. jquant2.c
  106. jsimd.h
  107. jsimd_none.c
  108. jsimddct.h
  109. jstdhuff.c
  110. jutils.c
  111. jversion.h
  112. libjpeg.map.in
  113. libjpeg.txt
  114. LICENSE.md
  115. Makefile.am
  116. rdbmp.c
  117. rdcolmap.c
  118. rdgif.c
  119. rdjpgcom.1
  120. rdjpgcom.c
  121. rdppm.c
  122. rdrle.c
  123. rdswitch.c
  124. rdtarga.c
  125. README.ijg
  126. README.md
  127. structure.txt
  128. tjbench.c
  129. tjbenchtest.in
  130. tjbenchtest.java.in
  131. tjexampletest.in
  132. tjunittest.c
  133. tjutil.c
  134. tjutil.h
  135. transupp.c
  136. transupp.h
  137. turbojpeg-jni.c
  138. turbojpeg-mapfile
  139. turbojpeg-mapfile.jni
  140. turbojpeg.c
  141. turbojpeg.h
  142. usage.txt
  143. wizard.txt
  144. wrbmp.c
  145. wrgif.c
  146. wrjpgcom.1
  147. wrjpgcom.c
  148. wrppm.c
  149. wrppm.h
  150. wrrle.c
  151. wrtarga.c