[FFmpeg-devel] Artifacts in VP8
Andy Bell
allbabel at gmail.com
Fri Jul 27 18:37:40 CEST 2012
Hi All,
I am encoding a VP8 stream using a Windows builds from
Zeronae, 20120612-git-728f86e-win32. If I try to decode the same stream on
Android with any new revision I get small artifacts in the image, little
black blocks basically. If I roll back to say version 0.8.10 from the
FFMPEG site the video is fine, if I try with 0.11.1 then I get the problem.
The same problem occurs in the latest git revisions as well.
I know this may be difficult to answer but what could have changed from
0.8.10 to the present that would cause these small black blocks?
I am using the following to configure FFMPEG:
/configure --target-os=linux \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-avfilter \
--disable-everything \
--enable-decoder=vp8 \
--enable-libvpx \
--enable-cross-compile \
--prefix=$PREFIX \
--enable-cross-compile \
--enable-pic \
--extra-libs="-lgcc" \
--arch=arm \
--cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
--nm=$PREBUILT/bin/arm-linux-androideabi-nm \
--sysroot=$PLATFORM \
--extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1
-Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums
-fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS " \
--extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib
-nostdlib -lc -lm -ldl -llog"
Thanks in advance, Andy
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