Re: [FFmpeg-user] ffmpeg cross compile error
Thanks Moritz, it works now.
Am 24.07.2019 um 16:04 schrieb Moritz Barsnick:
On Wed, Jul 24, 2019 at 15:28:04 +0200, Thomas Schmiedl wrote:
Hello,
I try to cross compile ffmpeg (git) using this toolchain
https://freetz.github.io/ for a MIPS-based router. My goal is to extract
a single image from this mjpeg-webcam-stream
http://gwm.ccshpraha.cz:8087/. Attached are the make output and
config.log (contains the configure parameters)
[...]
CC libavdevice/alldevices.o
In file included from
/home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/stdlib.h:32:0,
from
/home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/bits/sched.h:116,
from
/home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/sched.h:34,
from
/home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/pthread.h:24,
from ./libavutil/thread.h:30,
from libavdevice/alldevices.c:22:
./config.h:17:19: error: expected identifier or '(' before 'void'
#define getenv(x) NULL
^
./config.h:17:19: error: expected ')' before numeric constant
#define getenv(x) NULL
^
In file included from ./libavutil/internal.h:176:0,
from ./libavutil/common.h:491,
from ./libavutil/avutil.h:296,
from ./libavutil/samplefmt.h:24,
from ./libavcodec/avcodec.h:31,
from ./libavformat/avformat.h:317,
from ./libavformat/internal.h:27,
from libavdevice/alldevices.c:23:
./libavutil/libm.h:54:32: error: static declaration of 'cbrt' follows
non-static declaration
static av_always_inline double cbrt(double x)
^
This looks like this:
https://github.com/openwrt/packages/issues/6735
and the workaround seems to be adding "--cpu=". See
https://github.com/openwrt/packages/pull/6743/commits/8067051bfc99f48d02aec52265fc9b78f8e60dee
I don't know if there's a real bug in ffmpeg's source here. This here:
./config.h:17:19: error: expected identifier or '(' before 'void'
#define getenv(x) NULL
indicates that the NULL macro is different on MIPS, and ffmpeg's macro
might have to be:
#define getenv(x) (NULL)
just in case??
Moritz
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Re: [FFmpeg-user] ffmpeg cross compile error
On Wed, Jul 24, 2019 at 15:28:04 +0200, Thomas Schmiedl wrote:
> Hello,
>
> I try to cross compile ffmpeg (git) using this toolchain
> https://freetz.github.io/ for a MIPS-based router. My goal is to extract
> a single image from this mjpeg-webcam-stream
> http://gwm.ccshpraha.cz:8087/. Attached are the make output and
> config.log (contains the configure parameters)
[...]
> CClibavdevice/alldevices.o
> In file included from
> /home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/stdlib.h:32:0,
> from
> /home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/bits/sched.h:116,
> from
> /home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/sched.h:34,
> from
> /home/user/freetz/toolchain/build/mips_gcc-5.5.0_uClibc-1.0.14-nptl_kernel-3.10/mips-linux-uclibc/include/pthread.h:24,
> from ./libavutil/thread.h:30,
> from libavdevice/alldevices.c:22:
> ./config.h:17:19: error: expected identifier or '(' before 'void'
> #define getenv(x) NULL
>^
> ./config.h:17:19: error: expected ')' before numeric constant
> #define getenv(x) NULL
>^
> In file included from ./libavutil/internal.h:176:0,
> from ./libavutil/common.h:491,
> from ./libavutil/avutil.h:296,
> from ./libavutil/samplefmt.h:24,
> from ./libavcodec/avcodec.h:31,
> from ./libavformat/avformat.h:317,
> from ./libavformat/internal.h:27,
> from libavdevice/alldevices.c:23:
> ./libavutil/libm.h:54:32: error: static declaration of 'cbrt' follows
> non-static declaration
> static av_always_inline double cbrt(double x)
> ^
This looks like this:
https://github.com/openwrt/packages/issues/6735
and the workaround seems to be adding "--cpu=". See
https://github.com/openwrt/packages/pull/6743/commits/8067051bfc99f48d02aec52265fc9b78f8e60dee
I don't know if there's a real bug in ffmpeg's source here. This here:
> ./config.h:17:19: error: expected identifier or '(' before 'void'
> #define getenv(x) NULL
indicates that the NULL macro is different on MIPS, and ffmpeg's macro
might have to be:
> #define getenv(x) (NULL)
just in case??
Moritz
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Re: [FFmpeg-user] ffmpeg cross compile error
2018-06-03 21:25 GMT+02:00, Rafael Lima :
> I'm trying to cross-compile ffmpeg for android and i'm not linux/compiler
> specialist so far i've spent 10 days with much effort in order to prepare
> all the dependencies i need to the job
> --target-os=linux \
This looks wrong.
> however i'm 100% sure about the required libs being correclty compiled and
> instaled under ${PREFIX} i keep getting the message:
>
> ERROR: libfdk_aac not found
Is this the only message you see or is there something else printed?
Carl Eugen
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[FFmpeg-user] ffmpeg cross compile error
I'm trying to cross-compile ffmpeg for android and i'm not linux/compiler
specialist so far i've spent 10 days with much effort in order to prepare
all the dependencies i need to the job
all the cross-compiled dependencies are under ${PREFIX}/lib or
${PREFIX}/include and i'm using the following command to compile ffmpeg
# Build - FULL version
./configure --prefix=$PREFIX \
--arch=${ARCH}\
--cpu=${CPU} \
--cross-prefix=$CROSS_PREFIX \
--enable-cross-compile \
--sysroot=$SYSROOT \
--target-os=linux \
--sysinclude=$NDK/sysroot/usr/include \
--enable-pic \
--enable-gpl \
--enable-nonfree \
\
--disable-shared \
--enable-static \
\
--enable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
\
--enable-librtmp \
--enable-zlib \
--enable-mediacodec \
--enable-libx264 \
--enable-libfdk-aac\
--enable-libfreetype\
--enable-libmp3lame\
--enable-openssl\
--enable-libfontconfig\
--enable-bsf=aac_adtstoasc \
\
--disable-doc \
however i'm 100% sure about the required libs being correclty compiled and
instaled under ${PREFIX} i keep getting the message:
ERROR: libfdk_aac not found
and if I disable fdk_aac will complain about other lib, and other, until i
disable all extra
how can i tell pkg-config to look under the right folder? all the .pc files
are under ${PREFIX}/lib/pkgconfig
if it is not possible... how can i disable this program?
thanks
--
--
Rafael Lima
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