[Libav-user] Fwd: Re: FFmpeg vp8 decoding: cross compile on Windows for ARM target

Sun, 29 Jul 2018 07:26:37 -0700

I have tried the Window pathname suggestions, with no real success. I've decided to eliminate this as a variable, so I have switched to try to build FFmpeg libs under Linux(Ubuntu 17.10).  This is the exact process that I have followed so far: 
*
*1: I have downloaded and decompressed ffmpeg v4.0.2 into ffmpeg source root directory. 2: I have downloaded and installed Pre-buil2 GNU toolchain forArm Cortex-M for Linux (gcc-arm-none-eabi-7-2018-q2 update-linux)     from Arm website: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm 3: from cli, I set working directory to ffmpeg source root directory.  ( I created a simple helloworld.c program in working directory, to test compiler) 4: from cli,  I verified arm compiler did successfully create expected object file for helloworld.c test. 
5: from cli, I ran cofigure shell script:
$ ./configure --enable-cross-compile --cc=/home/ed/Project/armCrossCompile gcc-arm-none-eabi-eabi-gcc --target-os=none arch=arm 
6: This is the returned error message:
/home/ed/Project/armCrossCompile/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc is unable to create an executable file. C compiler test failed. 


I have attached zipped log file to show any possible clues.  I won't be 
able to do too much more today.  I will start Monday morning trying to 
understand what the log file is showing and what I might be missing.  
Again, any advice is appreciated.


Thanks,
Ed


-------- Forwarded Message --------

Subject: 	Re: [Libav-user] FFmpeg vp8 decoding: cross compile on Windows 
for ARM target

Date:   Sat, 28 Jul 2018 20:31:52 -0300
From:   Gonzalo Garramuño <[email protected]>

To: 	ed <[email protected]>, This list is about using libavcodec, 
libavformat, libavutil, libavdevice and libavfilter. 
<[email protected]>






El 27/07/2018 a las 20:17, ed escribió:



I have tried double/single/no quotes, around compiler pathname.  Same 
result.  I am hoping to get this working on Windows first.  If that 
can't happen, then I will move over to Linux.




Try forward slashes, backward slashes for weird character, and no 
colon.   That is:


/C/Program\ Files\  \(x86\)/..etc..


On 7/27/2018 2:58 PM, Larry Arnold wrote:

On 07/27/2018 06:45 PM, ed wrote:

# ./configure --enable-cross-compile --cc='C:\Program Files 
(x86)\GNU Tools ARM Embedded\7 2018-q2-update\bin' --target-os=none 
arch=arm



try


# ./configure --enable-cross-compile --cc="C:\Program Files (x86)\GNU 
Tools ARM Embedded\7 2018-q2-update\bin" --target-os=none arch=arm



It being windows and all. I have much better success cross compiling 
( even for windows native) on Linux.


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--
Gonzalo Garramuño



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