[FFmpeg-devel] [PATCH]Fix compilation without fft on arm

[Gavin Kinsey]

On Thursday 14 February 2013 08:10:12 Carl Eugen Hoyos wrote:
> 
> A user reported
> that "./configure --disable-encoders --disable-decoders
> --disable-swresample --enable-shared" fails on arm when linking
> libavcodec.
> 
> I unfortunately cannot test attached patch, anybody who can?

Using the Android ndk compiler it improves things but compilation still 
fails with those config options

Before patch:
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_fft_fixed_calc_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_fft_permute_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_fft_calc_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc8_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc4_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc2_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc8_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc4_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc2_neon'
collect2: ld returned 1 exit status
make: *** [ffprobe_g] Error 1

After patch:
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc8_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc4_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_put_h264_chroma_mc2_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc8_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc4_neon'
arm-linux-androideabi/bin/ld: libavcodec/libavcodec.so: error: undefined 
reference to 'ff_avg_h264_chroma_mc2_neon'
collect2: ld returned 1 exit status
make: *** [ffprobe_g] Error 1

So the fft changes seems to work correctly. at least.

-- 
Gavin Kinsey
AD Holdings Plc


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