ffmpeg roll of source to mar 9 version...

README.chromium

 Contains the sources used to compile FFmpeg binaries used by Google Chrome and
 Chromium.
 
 The FFmpeg source is from Alexander Strange's ffmpeg-mt branch:
   git://gitorious.org/~astrange/ffmpeg/ffmpeg-mt.git
   Commit: 42b521db9177ed2d4e62845659fdcd44c59757f9
 
 This corresponds to r18769 in the mainline ffmpeg repository.
 
 The Theora patches are also from the ffmpeg-mt branch above.  The git commit
 numbers and the corresponding svn revisions for them from ffmpeg mainline can
 be found at the top of each patch.
 
 The libswscale source is from the public libswscale repository:
   git://git.ffmpeg.org/libswscale
   Commit: 69fc1002e2c92aac84dccc5047141feefc94b309
 
 The static_pthread_O2.patch does two things.  First, it uses -O2 instead of
 -O3 to build ffmpeg.  This yields a significant savings in binary size, and
 also seems to improve performance (lower CPU usage).  Second, the patch adds
 a modification that statically links pthreadGC2 into avcodec-52.dll on an
 MSYS/MinGW build in Windows.  This reduces the number of DLLs required for
 distribution, and lowers the total size of the binaries.
 
 Steps for extracting:
   1) Extract ffmpeg-mt, which creates the directory ffmpeg-mt:
-       tar xzvf ffmpeg-mt.tar.gz
-  2) Descend into the newly created ffmpeg-mt directory:
+       tar xf ffmpeg-mt.tar.gz
+  3) Extract libswscale in place:
        cd ffmpeg-mt
-  3) Extract libswscale in place:
-       tar xzvf ../libswscale.tar.gz
+       tar xf ../libswscale.tar.gz
   4) Apply the static_pthread_O2.patch:
        patch -p1 < ../patches/to_upstream/01_static_pthread_O2.patch
   5) Apply additional security patches:
        patch -p1 < ../patches/to_upstream/02_mov_dref_looping.patch
-       patch -p1 < ../patches/to_upstream/03_aac_zero_bands.patch
        patch -p1 < ../patches/to_upstream/04_mpeg4_video_to_elementary_stream.patch
        patch -p1 < ../patches/to_upstream/05_vc1_bsfs.patch
        patch -p1 < ../patches/to_upstream/06_respect_flac_dirac_configure.patch
        patch -p1 < ../patches/to_upstream/08_ogg_seek_missing_first_frame.patch
        patch -p1 < ../patches/to_upstream/09_remove_decode_on_config_no_svq3.patch
-       patch -p1 < ../patches/to_upstream/10_resolve_text_relocations.patch
        patch -p1 < ../patches/ugly/13_get_bits_overrun.patch
        patch -p1 < ../patches/ugly/14_enforce_theora_oob.patch
-       patch -p1 < ../patches/ugly/15_enforce_vorbis_oob.patch
-       patch -p1 < ../patches/ugly/16_avoid_floor_divzero.patch
-       patch -p1 < ../patches/ugly/17_aac_oob_read.patch
+       patch -p1 < ../patches/ugly/15_enforce_vorbis_oob_divzero.patch
+       patch -p1 < ../patches/ugly/16_aac_oob_read.patch
 
 There is also a script "make_src_tree.sh" that automates most of the steps
 above for you.  It is currently only tested on linux.
 
 NOTE: Under Windows it is recommended to use Chromium's MinGW/MSYS environment
 or 7-Zip to extract the archives.  We've experienced issues when using WinRAR.
 
 Since FFmpeg is sandboxed inside the render process, we're only interested in
 building the absolute minimum.
 
 Example configure flags suitable for Chromium (Ogg+Theora+Vorbis), which will
 build and install to the directory ./chromium-ffmpeg:
 
   ./configure --disable-ffmpeg --disable-ffplay --disable-ffserver             \
               --enable-shared --disable-static --disable-debug                 \
-              --disable-network --disable-encoders --disable-decoders          \
-              --disable-hwaccels --disable-muxers --disable-demuxers           \
-              --disable-parsers --disable-bsfs --disable-protocols             \
-              --disable-devices --disable-filters --disable-gpl                \
-              --enable-decoder=theora --enable-decoder=vorbis                  \
-              --enable-demuxer=ogg --enable-pthreads --enable-yasm             \
-              --prefix=./chromium-ffmpeg
+              --disable-network --disable-encoders --disable-decoders          \
+              --disable-hwaccels --disable-muxers --disable-demuxers           \
+              --disable-parsers --disable-bsfs --disable-protocols             \
+              --disable-devices --disable-filters --disable-gpl                \
+              --enable-decoder=theora --enable-decoder=vorbis                  \
+              --enable-demuxer=ogg --enable-pthreads --enable-yasm             \
+              --prefix=./chromium-ffmpeg
 
 The following flags are used for Google Chrome, which also include non-free
 decoders (H.264, AAC and MP3):
   ./configure --disable-ffmpeg --disable-ffplay --disable-ffserver             \
               --enable-shared --disable-static --disable-debug                 \
-              --disable-network --disable-encoders --disable-decoders          \
-              --disable-hwaccels --disable-muxers --disable-demuxers           \
-              --disable-parsers --disable-bsfs --disable-protocols             \
-              --disable-devices --disable-filters --disable-gpl                \
+              --disable-network --disable-encoders --disable-decoders          \
+              --disable-hwaccels --disable-muxers --disable-demuxers           \
+              --disable-parsers --disable-bsfs --disable-protocols             \
+              --disable-devices --disable-filters --disable-gpl                \
               --enable-decoder=theora --enable-decoder=vorbis                  \
-              --enable-demuxer=ogg --enable-decoder=aac --enable-decoder=h264  \
-              --enable-decoder=mp3 --enable-demuxer=mp3 --enable-demuxer=mov   \
-              --enable-parser=mpegaudio --enable-pthreads --enable-yasm        \
-              --prefix=./chrome-ffmpeg
+              --enable-demuxer=ogg --enable-decoder=aac --enable-decoder=h264  \
+              --enable-decoder=mp3 --enable-demuxer=mp3 --enable-demuxer=mov   \
+              --enable-parser=mpegaudio --enable-pthreads --enable-yasm        \
+              --prefix=./chrome-ffmpeg
 
 If building on Windows with Chromium's MinGW/MSYS environment, add the following:
               --target-os=mingw32 --enable-memalign-hack --cc=gcc-sjlj
 
 To build:
   make
 
 To install:
   make install
 
 On Windows, run editbin.exe on the resulting DLLs to enable additional security
 features:
   1) Start a Visual Studio command prompt:
        Start Menu
            > Microsoft Visual Studio 2005
            > Visual Studio Tools
            > Visual Studio 2005 Command Prompt
   2) Change directories to where the DLLs were built
   3) editbin.exe /NXCOMPAT /DYNAMICBASE *.dll
 Now copy the resulting avcodec-52.dll, avformat-52.dll, and
 avutil-50.dll alongside chrome.exe for windows.
 
 On Mac, copy the resulting libavcodec.52.dylib, libavformat.52.dylib, and
 libavutil.50.dylib into the Chromium.app/Contents/MacOS folder alongside the
 Chromium binary.
 
 On Linux, copy the resulting libavcodec.so.52, libavformat.so.52, and
 libavutil.so.50 alongside the chrome executable.