Merge remote-tracking branch 'qatar/master'

* qatar/master: (29 commits)
  lavfi: reclassify showfiltfmts as a TESTPROG
  graph2dot: fix printf format specifier
  swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32.
  vp8: loopfilter >=sse2 functions need aligned stack on x86-32.
  amr: remove shift out of the AMR_BIT() macro.
  dsputilenc: group yasm and inline asm function pointer assignment.
  mov: use forward declaration of a function instead of a table.
  Clarify Doxygen comment for FF_API_* #defines.
  configure: simplify get_version()
  Create version.h headers for libraries that lack them
  gitignore: Use full path instead of relative path to specify patterns
  mpegvideo: remove VLAs
  Add XTEA encryption support in libavutil
  Add Blowfish encryption support in libavutil
  eval: Add the isinf() function and tests for it
  flacdec: move lpc filter to flacdsp
  flacdec: split off channel decorrelation as flacdsp
  avplay: Add an option for not limiting the input buffer size
  FATE: add a test for WMA cover art.
  FATE: add a test for apetag cover art
  ...

Conflicts:
	.gitignore
	configure
	ffplay.c
	libavcodec/Makefile
	libavcodec/error_resilience.c
	libavcodec/mpegvideo.c
	libavcodec/ratecontrol.c
	libavdevice/avdevice.h
	libavfilter/Makefile
	libavfilter/filtfmts.c
	libavfilter/version.h
	libavformat/mov.c
	libavformat/version.h
	libavutil/Makefile
	libavutil/avutil.h
	libavutil/version.h
	libswscale/swscale.h
	libswscale/x86/swscale_mmx.c
	tests/fate/libavutil.mak
	tests/lavfi-regression.sh
	tools/graph2dot.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

9 files changed, 924 insertions, 39 deletions

diff --git a/libavutil/Makefile b/libavutil/Makefile
index 4d41784848..c80447eb6c 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -11,6 +11,7 @@ HEADERS = adler32.h                                                     \
           avstring.h                                                    \
           avutil.h                                                      \
           base64.h                                                      \
+          blowfish.h                                                    \
           bprint.h                                                      \
           bswap.h                                                       \
           common.h                                                      \
@@ -42,7 +43,7 @@ HEADERS = adler32.h                                                     \
           time.h                                                        \
           timecode.h                                                    \
           timestamp.h                                                   \
-          version.h                                                     \
+          xtea.h                                                        \
 
 ARCH_HEADERS = bswap.h                                                  \
                intmath.h                                                \
@@ -57,6 +58,7 @@ OBJS = adler32.o                                                        \
        audioconvert.o                                                   \
        avstring.o                                                       \
        base64.o                                                         \
+       blowfish.o                                                       \
        bprint.o                                                         \
        cpu.o                                                            \
        crc.o                                                            \
@@ -89,11 +91,13 @@ OBJS = adler32.o                                                        \
        timecode.o                                                       \
        tree.o                                                           \
        utils.o                                                          \
+       xtea.o                                                           \
 
 TESTPROGS = adler32                                                     \
             aes                                                         \
             avstring                                                    \
             base64                                                      \
+            blowfish                                                    \
             bprint                                                      \
             cpu                                                         \
             crc                                                         \
@@ -112,6 +116,7 @@ TESTPROGS = adler32                                                     \
             rational                                                    \
             sha                                                         \
             tree                                                        \
+            xtea                                                        \
 
 TESTPROGS-$(HAVE_LZO1X_999_COMPRESS) += lzo
 
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 8b3aad560b..94f9ee85bd 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -141,37 +141,6 @@
 #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
-#include "libavutil/version.h"
-
-
-/**
- * @}
- *
- * @defgroup depr_guards Deprecation guards
- * Those FF_API_* defines are not part of public API.
- * They may change, break or disappear at any time.
- *
- * They are used mostly internally to mark code that will be removed
- * on the next major version.
- *
- * @{
- */
-#ifndef FF_API_OLD_EVAL_NAMES
-#define FF_API_OLD_EVAL_NAMES (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
-#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-#ifndef FF_API_FIND_OPT
-#define FF_API_FIND_OPT                 (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-#ifndef FF_API_AV_FIFO_PEEK
-#define FF_API_AV_FIFO_PEEK             (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-#ifndef FF_API_OLD_AVOPTIONS
-#define FF_API_OLD_AVOPTIONS            (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-
 /**
  * @}
  */
@@ -304,6 +273,7 @@ char av_get_picture_type_char(enum AVPictureType pict_type);
 
 #include "common.h"
 #include "error.h"
+#include "version.h"
 #include "mathematics.h"
 #include "rational.h"
 #include "intfloat_readwrite.h"
diff --git a/libavutil/blowfish.c b/libavutil/blowfish.c
new file mode 100644
index 0000000000..2ef037cf8e
--- /dev/null
+++ b/libavutil/blowfish.c
@@ -0,0 +1,566 @@
+/*
+ * Blowfish algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * loosely based on Paul Kocher's implementation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+
+#include "avutil.h"
+#include "common.h"
+#include "blowfish.h"
+
+static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
+    0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
+    0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
+    0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
+    0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
+    0x9216D5D9, 0x8979FB1B
+};
+
+static const uint32_t orig_s[4][256] = {
+    { 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
+      0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
+      0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
+      0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
+      0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
+      0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
+      0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
+      0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
+      0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
+      0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
+      0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
+      0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
+      0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
+      0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
+      0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
+      0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
+      0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
+      0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
+      0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
+      0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
+      0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
+      0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
+      0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
+      0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
+      0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
+      0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
+      0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
+      0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
+      0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
+      0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
+      0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
+      0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
+      0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
+      0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
+      0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
+      0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
+      0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
+      0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
+      0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
+      0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
+      0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
+      0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
+      0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
+      0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
+      0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
+      0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
+      0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
+      0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
+      0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
+      0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
+      0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
+      0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
+      0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
+      0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
+      0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
+      0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
+      0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
+      0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
+      0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
+      0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
+      0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
+      0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
+      0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
+      0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A },
+    { 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
+      0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
+      0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
+      0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
+      0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
+      0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
+      0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
+      0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
+      0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
+      0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
+      0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
+      0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
+      0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
+      0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
+      0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
+      0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
+      0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
+      0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
+      0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
+      0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
+      0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
+      0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
+      0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
+      0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
+      0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
+      0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
+      0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
+      0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
+      0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
+      0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
+      0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
+      0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
+      0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
+      0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
+      0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
+      0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
+      0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
+      0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
+      0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
+      0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
+      0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
+      0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
+      0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
+      0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
+      0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
+      0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
+      0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
+      0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
+      0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
+      0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
+      0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
+      0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
+      0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
+      0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
+      0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
+      0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
+      0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
+      0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
+      0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
+      0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
+      0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
+      0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
+      0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
+      0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7 },
+    { 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
+      0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
+      0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
+      0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
+      0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
+      0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
+      0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
+      0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
+      0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
+      0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
+      0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
+      0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
+      0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
+      0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
+      0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
+      0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
+      0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
+      0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
+      0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
+      0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
+      0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
+      0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
+      0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
+      0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
+      0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
+      0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
+      0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
+      0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
+      0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
+      0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
+      0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
+      0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
+      0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
+      0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
+      0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
+      0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
+      0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
+      0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
+      0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
+      0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
+      0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
+      0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
+      0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
+      0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
+      0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
+      0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
+      0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
+      0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
+      0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
+      0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
+      0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10,
+      0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
+      0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52,
+      0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
+      0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5,
+      0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
+      0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634,
+      0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
+      0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24,
+      0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
+      0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4,
+      0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
+      0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
+      0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0 },
+    { 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B,
+      0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
+      0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B,
+      0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
+      0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8,
+      0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
+      0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304,
+      0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
+      0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
+      0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
+      0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9,
+      0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
+      0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593,
+      0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
+      0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28,
+      0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
+      0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B,
+      0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
+      0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C,
+      0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
+      0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A,
+      0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
+      0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB,
+      0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
+      0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991,
+      0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
+      0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
+      0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
+      0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE,
+      0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
+      0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5,
+      0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
+      0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370,
+      0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
+      0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84,
+      0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
+      0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8,
+      0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
+      0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9,
+      0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
+      0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38,
+      0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
+      0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C,
+      0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
+      0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
+      0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
+      0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964,
+      0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
+      0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8,
+      0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
+      0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F,
+      0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
+      0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02,
+      0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
+      0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614,
+      0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
+      0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6,
+      0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
+      0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0,
+      0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
+      0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E,
+      0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
+      0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
+      0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6 }
+};
+
+static void F(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr, int i)
+{
+    uint32_t Xl, Xr;
+    uint32_t y;
+
+    Xl = *xl;
+    Xr = *xr;
+
+    Xl ^= ctx->p[i];
+    y   = ctx->s[0][(Xl >> 24) & 0xFF];
+    y  += ctx->s[1][(Xl >> 16) & 0xFF];
+    y  ^= ctx->s[2][(Xl >>  8) & 0xFF];
+    y  += ctx->s[3][ Xl        & 0xFF];
+    Xr ^= y;
+
+    *xl = Xr;
+    *xr = Xl;
+}
+
+av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
+{
+    uint32_t data, data_l, data_r;
+    int i, j, k;
+
+    memcpy(ctx->s, orig_s, sizeof(orig_s));
+
+    j = 0;
+    for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
+        data = 0;
+        for (k = 0; k < 4; k++) {
+            data = (data << 8) | key[j];
+            if (++j >= key_len)
+                j = 0;
+        }
+        ctx->p[i] = orig_p[i] ^ data;
+    }
+
+    data_l = data_r = 0;
+
+    for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
+        av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
+        ctx->p[i]     = data_l;
+        ctx->p[i + 1] = data_r;
+    }
+
+    for (i = 0; i < 4; ++i) {
+        for (j = 0; j < 256; j += 2) {
+            av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
+            ctx->s[i][j]     = data_l;
+            ctx->s[i][j + 1] = data_r;
+        }
+    }
+}
+
+void av_blowfish_crypt_ecb(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
+                           int decrypt)
+{
+    uint32_t Xl, Xr;
+    int i;
+
+    Xl = *xl;
+    Xr = *xr;
+
+    if (decrypt) {
+        for (i = AV_BF_ROUNDS + 1; i > 1; --i)
+            F(ctx, &Xl, &Xr, i);
+
+        Xl = Xl ^ ctx->p[1];
+        Xr = Xr ^ ctx->p[0];
+    } else {
+        for (i = 0; i < AV_BF_ROUNDS; ++i)
+            F(ctx, &Xl, &Xr, i);
+
+        Xl = Xl ^ ctx->p[AV_BF_ROUNDS];
+        Xr = Xr ^ ctx->p[AV_BF_ROUNDS + 1];
+    }
+
+    *xl = Xr;
+    *xr = Xl;
+}
+
+void av_blowfish_crypt(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
+                       int count, uint8_t *iv, int decrypt)
+{
+    uint32_t v0, v1;
+    int i;
+
+    while (count > 0) {
+        if (decrypt) {
+            v0 = AV_RB32(src);
+            v1 = AV_RB32(src + 4);
+
+            av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
+
+            AV_WB32(dst, v0);
+            AV_WB32(dst + 4, v1);
+
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = dst[i] ^ iv[i];
+                memcpy(iv, src, 8);
+            }
+        } else {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                v0 = AV_RB32(dst);
+                v1 = AV_RB32(dst + 4);
+            } else {
+                v0 = AV_RB32(src);
+                v1 = AV_RB32(src + 4);
+            }
+
+            av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
+
+            AV_WB32(dst, v0);
+            AV_WB32(dst + 4, v1);
+
+            if (iv)
+                memcpy(iv, dst, 8);
+        }
+
+        src   += 8;
+        dst   += 8;
+        count -= 8;
+    }
+}
+
+#ifdef TEST
+#include <stdio.h>
+#undef printf
+
+#define NUM_VARIABLE_KEY_TESTS 34
+
+/* plaintext bytes -- left halves */
+static const uint32_t plaintext_l[NUM_VARIABLE_KEY_TESTS] = {
+    0x00000000, 0xFFFFFFFF, 0x10000000, 0x11111111, 0x11111111,
+    0x01234567, 0x00000000, 0x01234567, 0x01A1D6D0, 0x5CD54CA8,
+    0x0248D438, 0x51454B58, 0x42FD4430, 0x059B5E08, 0x0756D8E0,
+    0x762514B8, 0x3BDD1190, 0x26955F68, 0x164D5E40, 0x6B056E18,
+    0x004BD6EF, 0x480D3900, 0x437540C8, 0x072D43A0, 0x02FE5577,
+    0x1D9D5C50, 0x30553228, 0x01234567, 0x01234567, 0x01234567,
+    0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
+};
+
+/* plaintext bytes -- right halves */
+static const uint32_t plaintext_r[NUM_VARIABLE_KEY_TESTS] = {
+    0x00000000, 0xFFFFFFFF, 0x00000001, 0x11111111, 0x11111111,
+    0x89ABCDEF, 0x00000000, 0x89ABCDEF, 0x39776742, 0x3DEF57DA,
+    0x06F67172, 0x2DDF440A, 0x59577FA2, 0x51CF143A, 0x774761D2,
+    0x29BF486A, 0x49372802, 0x35AF609A, 0x4F275232, 0x759F5CCA,
+    0x09176062, 0x6EE762F2, 0x698F3CFA, 0x77075292, 0x8117F12A,
+    0x18F728C2, 0x6D6F295A, 0x89ABCDEF, 0x89ABCDEF, 0x89ABCDEF,
+    0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
+};
+
+/* key bytes for variable key tests */
+static const uint8_t variable_key[NUM_VARIABLE_KEY_TESTS][8] = {
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
+    { 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
+    { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+    { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
+    { 0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57 },
+    { 0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E },
+    { 0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86 },
+    { 0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E },
+    { 0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6 },
+    { 0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE },
+    { 0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6 },
+    { 0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE },
+    { 0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16 },
+    { 0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F },
+    { 0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46 },
+    { 0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E },
+    { 0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76 },
+    { 0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07 },
+    { 0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F },
+    { 0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7 },
+    { 0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF },
+    { 0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6 },
+    { 0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF },
+    { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
+    { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
+    { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
+    { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+    { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
+};
+
+/* ciphertext bytes -- left halves */
+static const uint32_t ciphertext_l[NUM_VARIABLE_KEY_TESTS] = {
+    0x4EF99745, 0x51866FD5, 0x7D856F9A, 0x2466DD87, 0x61F9C380,
+    0x7D0CC630, 0x4EF99745, 0x0ACEAB0F, 0x59C68245, 0xB1B8CC0B,
+    0x1730E577, 0xA25E7856, 0x353882B1, 0x48F4D088, 0x432193B7,
+    0x13F04154, 0x2EEDDA93, 0xD887E039, 0x5F99D04F, 0x4A057A3B,
+    0x452031C1, 0x7555AE39, 0x53C55F9C, 0x7A8E7BFA, 0xCF9C5D7A,
+    0xD1ABB290, 0x55CB3774, 0xFA34EC48, 0xA7907951, 0xC39E072D,
+    0x014933E0, 0xF21E9A77, 0x24594688, 0x6B5C5A9C
+};
+
+/* ciphertext bytes -- right halves */
+static const uint32_t ciphertext_r[NUM_VARIABLE_KEY_TESTS] = {
+    0x6198DD78, 0xB85ECB8A, 0x613063F2, 0x8B963C9D, 0x2281B096,
+    0xAFDA1EC7, 0x6198DD78, 0xC6A0A28D, 0xEB05282B, 0x250F09A0,
+    0x8BEA1DA4, 0xCF2651EB, 0x09CE8F1A, 0x4C379918, 0x8951FC98,
+    0xD69D1AE5, 0xFFD39C79, 0x3C2DA6E3, 0x5B163969, 0x24D3977B,
+    0xE4FADA8E, 0xF59B87BD, 0xB49FC019, 0x937E89A3, 0x4986ADB5,
+    0x658BC778, 0xD13EF201, 0x47B268B2, 0x08EA3CAE, 0x9FAC631D,
+    0xCDAFF6E4, 0xB71C49BC, 0x5754369A, 0x5D9E0A5A
+};
+
+/* plaintext bytes */
+static const uint8_t plaintext[8] = "BLOWFISH";
+
+/* ciphertext bytes */
+static const uint8_t ciphertext[8] = {
+    0x32, 0x4E, 0xD0, 0xFE, 0xF4, 0x13, 0xA2, 0x03
+};
+
+int main(void)
+{
+    AVBlowfish ctx;
+    uint32_t tmptext_l[NUM_VARIABLE_KEY_TESTS];
+    uint32_t tmptext_r[NUM_VARIABLE_KEY_TESTS];
+    uint8_t tmp[8];
+    int i;
+
+    av_blowfish_init(&ctx, "abcdefghijklmnopqrstuvwxyz", 26);
+
+    av_blowfish_crypt(&ctx, tmp, plaintext, 1, NULL, 0);
+    if (memcmp(tmp, ciphertext, 8)) {
+        printf("Test encryption failed.\n");
+        return 1;
+    }
+
+    av_blowfish_crypt(&ctx, tmp, ciphertext, 1, NULL, 1);
+    if (memcmp(tmp, plaintext, 8)) {
+        printf("Test decryption failed.\n");
+        return 1;
+    }
+
+    memcpy(tmptext_l, plaintext_l, sizeof(*plaintext_l) * NUM_VARIABLE_KEY_TESTS);
+    memcpy(tmptext_r, plaintext_r, sizeof(*plaintext_r) * NUM_VARIABLE_KEY_TESTS);
+
+    for (i = 0; i < NUM_VARIABLE_KEY_TESTS; i++) {
+        av_blowfish_init(&ctx, variable_key[i], 8);
+
+        av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 0);
+        if (tmptext_l[i] != ciphertext_l[i] || tmptext_r[i] != ciphertext_r[i]) {
+            printf("Test encryption failed.\n");
+            return 1;
+        }
+
+        av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 1);
+        if (tmptext_l[i] != plaintext_l[i] || tmptext_r[i] != plaintext_r[i]) {
+            printf("Test decryption failed.\n");
+            return 1;
+        }
+    }
+    printf("Test encryption/decryption success.\n");
+
+    return 0;
+}
+
+#endif
diff --git a/libavutil/blowfish.h b/libavutil/blowfish.h
new file mode 100644
index 0000000000..8236a46ecb
--- /dev/null
+++ b/libavutil/blowfish.h
@@ -0,0 +1,76 @@
+/*
+ * Blowfish algorithm
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BLOWFISH_H
+#define AVUTIL_BLOWFISH_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_blowfish Blowfish
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+#define AV_BF_ROUNDS 16
+
+typedef struct AVBlowfish {
+    uint32_t p[AV_BF_ROUNDS + 2];
+    uint32_t s[4][256];
+} AVBlowfish;
+
+/**
+ * Initialize an AVBlowfish context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param key a key
+ * @param key_len length of the key
+ */
+void av_blowfish_init(struct AVBlowfish *ctx, const uint8_t *key, int key_len);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param xl left four bytes halves of input to be encrypted
+ * @param xr right four bytes halves of input to be encrypted
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt_ecb(struct AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
+                           int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt(struct AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
+                       int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_BLOWFISH_H */
diff --git a/libavutil/cpu.h b/libavutil/cpu.h
index 0cd8117159..d8ec32cdc2 100644
--- a/libavutil/cpu.h
+++ b/libavutil/cpu.h
@@ -22,7 +22,6 @@
 #define AVUTIL_CPU_H
 
 #include "attributes.h"
-#include "version.h"
 
 #define AV_CPU_FLAG_FORCE    0x80000000 /* force usage of selected flags (OR) */
 
@@ -43,11 +42,11 @@
 #define AV_CPU_FLAG_AVX          0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
 #define AV_CPU_FLAG_XOP          0x0400 ///< Bulldozer XOP functions
 #define AV_CPU_FLAG_FMA4         0x0800 ///< Bulldozer FMA4 functions
-#if LIBAVUTIL_VERSION_MAJOR <52
+// #if LIBAVUTIL_VERSION_MAJOR <52
 #define AV_CPU_FLAG_CMOV      0x1001000 ///< supports cmov instruction
-#else
-#define AV_CPU_FLAG_CMOV         0x1000 ///< supports cmov instruction
-#endif
+// #else
+// #define AV_CPU_FLAG_CMOV         0x1000 ///< supports cmov instruction
+// #endif
 
 #define AV_CPU_FLAG_ALTIVEC      0x0001 ///< standard
 
diff --git a/libavutil/eval.c b/libavutil/eval.c
index 771f12d90a..0f9ada6098 100644
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -133,7 +133,7 @@ static int strmatch(const char *s, const char *prefix)
 struct AVExpr {
     enum {
         e_value, e_const, e_func0, e_func1, e_func2,
-        e_squish, e_gauss, e_ld, e_isnan,
+        e_squish, e_gauss, e_ld, e_isnan, e_isinf,
         e_mod, e_max, e_min, e_eq, e_gt, e_gte,
         e_pow, e_mul, e_div, e_add,
         e_last, e_st, e_while, e_taylor, e_root, e_floor, e_ceil, e_trunc,
@@ -163,6 +163,7 @@ static double eval_expr(Parser *p, AVExpr *e)
         case e_gauss: { double d = eval_expr(p, e->param[0]); return exp(-d*d/2)/sqrt(2*M_PI); }
         case e_ld:     return e->value * p->var[av_clip(eval_expr(p, e->param[0]), 0, VARS-1)];
         case e_isnan:  return e->value * !!isnan(eval_expr(p, e->param[0]));
+        case e_isinf:  return e->value * !!isinf(eval_expr(p, e->param[0]));
         case e_floor:  return e->value * floor(eval_expr(p, e->param[0]));
         case e_ceil :  return e->value * ceil (eval_expr(p, e->param[0]));
         case e_trunc:  return e->value * trunc(eval_expr(p, e->param[0]));
@@ -383,6 +384,7 @@ static int parse_primary(AVExpr **e, Parser *p)
     else if (strmatch(next, "lt"    )) { AVExpr *tmp = d->param[1]; d->param[1] = d->param[0]; d->param[0] = tmp; d->type = e_gt; }
     else if (strmatch(next, "ld"    )) d->type = e_ld;
     else if (strmatch(next, "isnan" )) d->type = e_isnan;
+    else if (strmatch(next, "isinf" )) d->type = e_isinf;
     else if (strmatch(next, "st"    )) d->type = e_st;
     else if (strmatch(next, "while" )) d->type = e_while;
     else if (strmatch(next, "taylor")) d->type = e_taylor;
@@ -562,6 +564,7 @@ static int verify_expr(AVExpr *e)
         case e_ld:
         case e_gauss:
         case e_isnan:
+        case e_isinf:
         case e_floor:
         case e_ceil:
         case e_trunc:
@@ -751,6 +754,10 @@ int main(int argc, char **argv)
         "st(0, 1); while(lte(ld(0),100), st(1, ld(1)+ld(0)); st(0, ld(0)+1))",
         "isnan(1)",
         "isnan(NAN)",
+        "isnan(INF)",
+        "isinf(1)",
+        "isinf(NAN)",
+        "isinf(INF)",
         "floor(NAN)",
         "floor(123.123)",
         "floor(-123.123)",
diff --git a/libavutil/version.h b/libavutil/version.h
index 857540b049..b456d825a1 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -21,6 +21,14 @@
 #ifndef AVUTIL_VERSION_H
 #define AVUTIL_VERSION_H
 
+#include "avutil.h"
+
+/**
+ * @file
+ * @ingroup lavu
+ * Libavutil version macros
+ */
+
 /**
  * @defgroup lavu_ver Version and Build diagnostics
  *
@@ -46,6 +54,34 @@
 
 /**
  * @}
+ *
+ * @defgroup depr_guards Deprecation guards
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ *
+ * @{
  */
 
-#endif  //AVUTIL_VERSION_H
+#ifndef FF_API_OLD_EVAL_NAMES
+#define FF_API_OLD_EVAL_NAMES           (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
+#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+#ifndef FF_API_FIND_OPT
+#define FF_API_FIND_OPT                 (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+#ifndef FF_API_AV_FIFO_PEEK
+#define FF_API_AV_FIFO_PEEK             (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+#ifndef FF_API_OLD_AVOPTIONS
+#define FF_API_OLD_AVOPTIONS            (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_VERSION_H */
+
diff --git a/libavutil/xtea.c b/libavutil/xtea.c
new file mode 100644
index 0000000000..983cae90a5
--- /dev/null
+++ b/libavutil/xtea.c
@@ -0,0 +1,165 @@
+/*
+ * A 32-bit implementation of the XTEA algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * loosely based on the implementation of David Wheeler and Roger Needham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+
+#include "avutil.h"
+#include "common.h"
+#include "xtea.h"
+
+void av_xtea_init(AVXTEA *ctx, const uint8_t key[16])
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+        ctx->key[i] = AV_RB32(key + (i << 2));
+}
+
+static void xtea_crypt_ecb(AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                           int decrypt)
+{
+    uint32_t v0, v1;
+    int i;
+
+    v0 = AV_RB32(src);
+    v1 = AV_RB32(src + 4);
+
+    if (decrypt) {
+        uint32_t delta = 0x9E3779B9, sum = delta * 32;
+
+        for (i = 0; i < 32; i++) {
+            v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+            sum -= delta;
+            v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+        }
+    } else {
+        uint32_t sum = 0, delta = 0x9E3779B9;
+
+        for (i = 0; i < 32; i++) {
+            v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+            sum += delta;
+            v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+        }
+    }
+
+    AV_WB32(dst, v0);
+    AV_WB32(dst + 4, v1);
+}
+
+void av_xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
+                   uint8_t *iv, int decrypt)
+{
+    int i;
+
+    while (count > 0) {
+        if (decrypt) {
+            xtea_crypt_ecb(ctx, dst, src, decrypt);
+
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = dst[i] ^ iv[i];
+                memcpy(iv, src, 8);
+            }
+        } else {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                xtea_crypt_ecb(ctx, dst, dst, decrypt);
+                memcpy(iv, dst, 8);
+            } else {
+                xtea_crypt_ecb(ctx, dst, src, decrypt);
+            }
+        }
+
+        src   += 8;
+        dst   += 8;
+        count -= 8;
+    }
+}
+
+#ifdef TEST
+#include <stdio.h>
+#undef printf
+
+#define XTEA_NUM_TESTS 6
+
+static const uint8_t xtea_test_key[XTEA_NUM_TESTS][16] = {
+    { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+    { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+    { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+      0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
+};
+
+static const uint8_t xtea_test_pt[XTEA_NUM_TESTS][8] = {
+    { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
+    { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+    { 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f },
+    { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
+    { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+    { 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 }
+};
+
+static const uint8_t xtea_test_ct[XTEA_NUM_TESTS][8] = {
+    { 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 },
+    { 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 },
+    { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
+    { 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 },
+    { 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d },
+    { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }
+};
+
+int main(void)
+{
+    AVXTEA ctx;
+    uint8_t buf[8];
+    int i;
+
+    for (i = 0; i < XTEA_NUM_TESTS; i++) {
+        av_xtea_init(&ctx, xtea_test_key[i]);
+
+        av_xtea_crypt(&ctx, buf, xtea_test_pt[i], 1, NULL, 0);
+        if (memcmp(buf, xtea_test_ct[i], 8)) {
+            printf("Test encryption failed.\n");
+            return 1;
+        }
+
+        av_xtea_crypt(&ctx, buf, xtea_test_ct[i], 1, NULL, 1);
+        if (memcmp(buf, xtea_test_pt[i], 8)) {
+            printf("Test decryption failed.\n");
+            return 1;
+        }
+    }
+    printf("Test encryption/decryption success.\n");
+
+    return 0;
+}
+
+#endif
diff --git a/libavutil/xtea.h b/libavutil/xtea.h
new file mode 100644
index 0000000000..76f7b90b5b
--- /dev/null
+++ b/libavutil/xtea.h
@@ -0,0 +1,61 @@
+/*
+ * A 32-bit implementation of the XTEA algorithm
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_XTEA_H
+#define AVUTIL_XTEA_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_xtea XTEA
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+typedef struct AVXTEA {
+    uint32_t key[16];
+} AVXTEA;
+
+/**
+ * Initialize an AVXTEA context.
+ *
+ * @param x an AVXTEA context
+ * @param key a key of 16 bytes used for encryption/decryption
+ */
+void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16]);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param x an AVXTEA context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                   int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_XTEA_H */