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Analog of flags2=+mixed_refs in last ffmpeg
Hello All!
We use ffmpeg version 0.6.5 but have problems with sync of video and audio in iOS. We wanted to use a newer version of ffmpeg installed by ffmpeginstaller (FFMPEG Auto Installer) but the new version does not understand our old preset
flags2=+mixed_refsHow can we express this
flags2=+mixed_refs
in our new version? Our new version is shown below:# ffmpeg -version
ffmpeg version N-42365-g36b2bd9-syslint
built on Jul 9 2012 06:04:26 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
configuration: –prefix=/usr/local/cpffmpeg –enable-shared –enable-nonfree –enable-gpl –enable-pthreads –enable-libopencore-amrnb –enable-decoder=liba52 –enable-libopencore-amrwb –enable-libfaac –enable-libmp3lame –enable-libtheora –enable-libvorbis –enable-libx264 –enable-libxvid –extra-cflags=-I/usr/local/cpffmpeg/include/ –extra-ldflags=-L/usr/local/cpffmpeg/lib –enable-version3 –extra-version=syslint
libavutil 51. 64.100 / 51. 64.100
libavcodec 54. 33.100 / 54. 33.100
libavformat 54. 15.102 / 54. 15.102
libavdevice 54. 1.100 / 54. 1.100
libavfilter 3. 1.100 / 3. 1.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100Thank you if you answer.
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1 Reply
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ffmpeg no longer tries to map options to those available with libx64, which is confusing when the names are different and different options are available between versions.
Use the “-x264opts” followed by key=value pairs, using “:” as a delimiter.
Example (from the man page):
ffmpeg -i foo.mpg -vcodec libx264 -x264opts keyint=123:min-keyint=20 -an out.mkvFor a list of all x264 options:
x264 --fullhelp
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