I'm able to build ffmpeg library using NDK r19 when architecture
is arm, but compilation fails at libavcodec when architecture is aarch64:
cd ffmpeg && \
CC="aarch64-linux-android21-clang --sysroot
/usr/local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot"
\
RANLIB=aarch64-linux-android-ranlib AR=aarch64-linux-android-ar
PATH=/usr/local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin:/usr/bin:/bin
\
PREFIX=/android/arm \
./configure \
--target-os=android \
--arch=aarch64 \
--enable-cross-compile \
--cc=aarch64-linux-android21-clang \
--strip=aarch64-linux-android-strip \
--enable-decoder=hevc && \
CC="aarch64-linux-android21-clang --sysroot
/usr/local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot"
\
RANLIB=aarch64-linux-android-ranlib AR=aarch64-linux-android-ar
PATH=/usr/local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin:/usr/bin:/bin
\
make -j4
install prefix /usr/local
source path .
C compiler aarch64-linux-android21-clang
C library bionic
host C compiler gcc
host C library glibc
ARCH aarch64 (generic)
big-endian no
runtime cpu detection yes
NEON enabled yes
VFP enabled yes
debug symbols yes
strip symbols yes
optimize for size no
optimizations yes
static yes
shared no
postprocessing support no
network support yes
threading support pthreads
safe bitstream reader yes
texi2html enabled no
perl enabled yes
pod2man enabled yes
makeinfo enabled no
makeinfo supports HTML no
...
CC libavcodec/aarch64/vorbisdsp_init.o
AS libavcodec/aarch64/vorbisdsp_neon.o
CC libavcodec/aarch64/vp8dsp_init_aarch64.o
AS libavcodec/aarch64/vp8dsp_neon.o
libavcodec/aarch64/vp8dsp_neon.S:34:35: error: invalid operand for instruction
smull v26.4s, v1.4h, v4.4h[0]
^
libavcodec/aarch64/vp8dsp_neon.S:35:35: error: invalid operand for instruction
smull v27.4s, v3.4h, v4.4h[0]
^
libavcodec/aarch64/vp8dsp_neon.S:36:37: error: invalid operand for instruction
sqdmulh v20.4h, v1.4h, v4.4h[1]
...
Any ideas what might cause the issue?
-- Juha
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