I tried to do this to double check the architeture.... it says armv7.... but when I try to link, it doesn't work...<div><div><br></div><div><div><font face="'courier new', monospace">lipo -i libavformat.a </font></div>
<div><font face="'courier new', monospace">input file libavformat.a is not a fat file</font></div><div><font face="'courier new', monospace">Non-fat file: libavformat.a is architecture: armv7</font></div>
<div>
<font face="'courier new', monospace"><br></font></div><div>I also tried to change the compiler to llvm-gcc .... but the same error happens...<br><div><font face="'courier new', monospace"><br></font></div>
<div><font face="'courier new', monospace"><br></font></div><div class="gmail_quote">On Tue, Mar 27, 2012 at 1:00 PM, Wagner Patriota <span dir="ltr"><<a href="mailto:wagner.patriota@gmail.com">wagner.patriota@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks Gavin,<div><br></div><div>I am using the latest SDK and the latest FFMPEG..</div><div><br></div><div>I tried this:</div>
<div><div><font face="'courier new', monospace">./configure</font></div><div><font face="'courier new', monospace">--enable-static</font></div>
<div><font face="'courier new', monospace">--disable-shared</font></div><div><font face="'courier new', monospace">--enable-pic</font></div><div><font face="'courier new', monospace">--sysroot="<b>/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk</b>"</font></div>
<div><font face="'courier new', monospace">--extra-ldflags="-arch armv7 -isysroot <b>/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk</b> -miphoneos-version-min=<b>5.1</b>"</font></div>
<div><font face="'courier new', monospace">--enable-cross-compile</font></div><div><font face="'courier new', monospace">--arch=arm</font></div><div><font face="'courier new', monospace">--target-os=darwin</font></div>
<div><font face="'courier new', monospace">--cc="<b>/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc</b>"</font></div><div><font face="'courier new', monospace">--cpu=cortex-a8</font></div>
<div><font face="'courier new', monospace">--extra-cflags="-arch armv7 -mfpu=neon -miphoneos-version-min=<b>5.1</b>"</font></div><div><font face="'courier new', monospace">--disable-debug</font></div>
<div><font face="'courier new', monospace">--enable-small</font></div><div><font face="'courier new', monospace"><b>--disable-asm</b></font></div></div><div><br></div><div>based on your command, with some modifications in BOLD....</div>
<div><br></div><div>well.. it compiles... but when I try to link with my application I have:</div><div><br></div><div>
<p><font face="'courier new', monospace">Undefined symbols for architecture armv7:</font></p>
<p><font face="'courier new', monospace"> "__Z13avcodec_open2P14AVCodecContextP7AVCodecPP12AVDictionary", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z21avformat_write_headerP15AVFormatContextPP12AVDictionary", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z26av_interleaved_write_frameP15AVFormatContextP8AVPacket", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z7av_freePv", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z10avio_flushP11AVIOContext", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z15av_guess_formatPKcS0_S0_", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z13av_dup_packetP8AVPacket", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z15av_register_allv", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z14av_dump_formatP15AVFormatContextiPKci", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z14av_free_packetP8AVPacket", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z20avcodec_find_decoder7CodecID", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z10avio_closeP11AVIOContext", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z19avformat_open_inputPP15AVFormatContextPKcP13AVInputFormatPP12AVDictionary", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z16av_write_trailerP15AVFormatContext", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z9avio_openPP11AVIOContextPKci", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z13avcodec_closeP14AVCodecContext", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z19avformat_new_streamP15AVFormatContextP7AVCodec", referenced from:</font></p>
<p><font face="'courier new', monospace"> __ZL17add_output_streamP15AVFormatContextP8AVStream in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z25avformat_find_stream_infoP15AVFormatContextPP12AVDictionary", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z8av_freepPv", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z22avformat_alloc_contextv", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace"> "__Z13av_read_frameP15AVFormatContextP8AVPacket", referenced from:</font></p>
<p><font face="'courier new', monospace"> __Z4doItv in Smooth.o</font></p>
<p><font face="'courier new', monospace">ld: symbol(s) not found for architecture armv7</font></p>
<p><font face="'courier new', monospace">clang: error: linker command failed with exit code 1 (use -v to see invocation)</font></p></div><div><br></div><div>Any suggestion?</div><div><br></div><div>Thanks...</div>
<div><br></div><div><br></div><div><br><br><div class="gmail_quote"><div><div class="h5">On Tue, Mar 27, 2012 at 9:23 AM, Gavin Kinsey <span dir="ltr"><<a href="mailto:gkinsey@ad-holdings.co.uk" target="_blank">gkinsey@ad-holdings.co.uk</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div>On Friday 23 March 2012 21:22:33 Wagner Patriota wrote:<br>
> Has anybody done it yet?<br>
<br>
</div>Yes, haven't tested with the latest SDK yet but for 5.0 and below I have it<br>
working.<br>
<div><br>
> I am using the following commands:<br>
><br>
</div><snip commands><br>
<div>><br>
> But when I try to link my application with the libraries this above<br>
> script generates, I get the following:<br>
><br>
> "ld: warning: ignoring file<br>
> /Users/Wagner/ffmpeg/ffmpeg/armv7/libavcodec.a, file was built for<br>
> archive which is not the architecture being linked (armv7)"<br>
<br>
</div>Configure flags that I use (minus the disable/enable decoders and stuff I have<br>
which aren't relevant)<br>
<br>
configure --enable-static --disable-shared --enable-pic --<br>
sysroot="/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk"<br>
--extra-ldflags="-arch armv7 -isysroot<br>
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -<br>
miphoneos-version-min=4.0" --enable-cross-compile --arch=arm --target-<br>
os=darwin --<br>
cc="/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" --<br>
cpu=cortex-a8 --extra-cflags="-arch armv7 -mfpu=neon -miphoneos-version-<br>
min=4.0" --disable-debug --enable-small<br>
<br>
I also have a small patch to work around Apple gcc brokenness, which I've<br>
attached.<br>
<span><font color="#888888"><br>
--<br>
Gavin Kinsey<br>
AD Holdings Plc<br>
<br>
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