[Libav-user] problems cross compiling OpenCV with FFMpeg for ARM Linux

[Gorka Vélez]

Hello all,

I am trying to cross compile OpenCV with FFMPEG for ARM Linux, but I get
some errors, and I think it's because I don't cross compile correctly
FFMPEG, or I'm missing something.

First, I have cross compiled FFMPEG using these flags:

*./configure --enable-cross-compile --cross-prefix=arm-linux-gnueabi-
--cc=arm-linux-gnueabi-gcc --cxx=arm-linux-gnueabi-g++ --arch=arm
--target-os=linux --disable-armv5te --disable-armv6 --disable-armv6t2
--enable-libopencv --enable-pic  prefix=/home/mypath/ffmpeg_binARM *


Then, I have tried to cross compile OpenCV using this help:
http://docs.opencv.org/doc/tutorials/introduction/crosscompilation/arm_crosscompile_with_cmake.html
*
*
*cd ~/opencv/platforms/linux*
*mkdir -p Build_ARM*
*cd Build_ARM*
*
*
*cmake  -DSOFTFP=ON -DCMAKE_TOOLCHAIN_FILE=../arm-gnueabi.toolchain.cmake
../../..*

...and I get the following errors when I do "make". Can anyone help me????

Thank you!!
*
*
*...*
*[ 34%] Building CXX object
modules/highgui/CMakeFiles/opencv_highgui.dir/src/bitstrm.cpp.o*
*Linking CXX shared library ../../lib/libopencv_highgui.so*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(matroskaenc.o): In function
`get_aac_sample_rates':*
*/home/mypath/ffmpeg/libavformat/matroskaenc.c:460: undefined reference to
`avpriv_mpeg4audio_get_config'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(matroskaenc.o): In function
`put_xiph_codecpriv':*
*/home/mypath/ffmpeg/libavformat/matroskaenc.c:440: undefined reference to
`avpriv_split_xiph_headers'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`has_decode_delay_been_guessed':*
*/home/mypath/ffmpeg/libavformat/utils.c:916: undefined reference to
`avpriv_h264_has_num_reorder_frames'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`ff_read_frame_flush':*
*/home/mypath/ffmpeg/libavformat/utils.c:1624: undefined reference to
`av_parser_close'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`has_decode_delay_been_guessed':*
*/home/mypath/ffmpeg/libavformat/utils.c:916: undefined reference to
`avpriv_h264_has_num_reorder_frames'*
*/home/mypath/ffmpeg/libavformat/utils.c:916: undefined reference to
`avpriv_h264_has_num_reorder_frames'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`parse_packet':*
*/home/mypath/ffmpeg/libavformat/utils.c:1285: undefined reference to
`av_parser_parse2'*
*/home/mypath/ffmpeg/libavformat/utils.c:1352: undefined reference to
`av_parser_close'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`read_frame_internal':*
*/home/mypath/ffmpeg/libavformat/utils.c:1423: undefined reference to
`av_parser_init'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`avformat_find_stream_info':*
*/home/mypath/ffmpeg/libavformat/utils.c:2715: undefined reference to
`av_parser_init'*
*/home/mypath/ffmpeg/libavformat/utils.c:2999: undefined reference to
`avcodec_pix_fmt_to_codec_tag'*
*/home/mypath/ffmpeg/libavformat/utils.c:3000: undefined reference to
`avpriv_find_pix_fmt'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`tb_unreliable':*
*/home/mypath/ffmpeg/libavformat/utils.c:2674: undefined reference to
`ff_raw_pix_fmt_tags'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`estimate_timings_from_pts':*
*/home/mypath/ffmpeg/libavformat/utils.c:2311: undefined reference to
`av_parser_close'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(utils.o): In function
`ff_free_stream':*
*/home/mypath/ffmpeg/libavformat/utils.c:3214: undefined reference to
`av_parser_close'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(allformats.o): In function
`av_register_all':*
*/home/mypath/ffmpeg/libavformat/allformats.c:60: undefined reference to
`avcodec_register_all'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(dv.o): In function
`dv_read_header':*
*/home/mypath/ffmpeg/libavformat/dv.c:511: undefined reference to
`avpriv_dv_frame_profile'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(dv.o): In function
`avpriv_dv_produce_packet':*
*/home/mypath/ffmpeg/libavformat/dv.c:364: undefined reference to
`avpriv_dv_frame_profile'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(dv.o): In function
`dv_frame_offset':*
*/home/mypath/ffmpeg/libavformat/dv.c:413: undefined reference to
`avpriv_dv_codec_profile'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(dvenc.o): In function
`dv_init_mux':*
*/home/mypath/ffmpeg/libavformat/dvenc.c:317: undefined reference to
`avpriv_dv_codec_profile'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(flacdec.o): In function
`flac_read_header':*
*/home/mypath/ffmpeg/libavformat/flacdec.c:178: undefined reference to
`avpriv_flac_parse_block_header'*
*/home/mypath/ffmpeg/libavformat/flacdec.c:216: undefined reference to
`avpriv_flac_parse_streaminfo'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(flacenc.o): In function
`flac_write_trailer':*
*/home/mypath/ffmpeg/libavformat/flacenc.c:106: undefined reference to
`avpriv_flac_is_extradata_valid'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(flacenc_header.o): In
function `ff_flac_write_header':*
*/home/mypath/ffmpeg/libavformat/flacenc_header.c:37: undefined reference
to `avpriv_flac_is_extradata_valid'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(frmdec.o): In function
`frm_read_header':*
*/home/mypath/ffmpeg/libavformat/frmdec.c:64: undefined reference to
`avpriv_find_pix_fmt'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(isom.o): In function
`ff_mp4_read_dec_config_descr':*
*/home/mypath/ffmpeg/libavformat/isom.c:460: undefined reference to
`avpriv_mpeg4audio_get_config'*
*/home/mypath/ffmpeg/libavformat/isom.c:442: undefined reference to
`avpriv_mpa_freq_tab'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(latmenc.o): In function
`latm_decode_extradata':*
*/home/mypath/ffmpeg/libavformat/latmenc.c:63: undefined reference to
`avpriv_mpeg4audio_get_config'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(latmenc.o): In function
`latm_write_packet':*
*/home/mypath/ffmpeg/libavformat/latmenc.c:196: undefined reference to
`avpriv_copy_bits'*
*/home/mypath/ffmpeg/libavformat/latmenc.c:198: undefined reference to
`avpriv_align_put_bits'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(latmenc.o): In function
`latm_write_frame_header':*
*/home/mypath/ffmpeg/libavformat/latmenc.c:123: undefined reference to
`avpriv_copy_bits'*
*/home/mypath/ffmpeg/libavformat/latmenc.c:129: undefined reference to
`avpriv_copy_pce_data'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(latmenc.o): In function
`latm_write_packet':*
*/home/mypath/ffmpeg/libavformat/latmenc.c:194: undefined reference to
`avpriv_copy_bits'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(latmenc.o): In function
`latm_write_frame_header':*
*/home/mypath/ffmpeg/libavformat/latmenc.c:119: undefined reference to
`avpriv_copy_bits'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(matroskadec.o): In function
`matroska_read_header':*
*/home/mypath/ffmpeg/libavformat/matroskadec.c:1818: undefined reference to
`avpriv_mpeg4audio_sample_rates'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mov.o): In function
`mov_read_dac3':*
*/home/mypath/ffmpeg/libavformat/mov.c:652: undefined reference to
`avpriv_ac3_channel_layout_tab'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mov.o): In function
`mov_read_dec3':*
*/home/mypath/ffmpeg/libavformat/mov.c:679: undefined reference to
`avpriv_ac3_channel_layout_tab'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3dec.o): In function
`check':*
*/home/mypath/ffmpeg/libavformat/mp3dec.c:268: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg/libavformat/mp3dec.c:268: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg/libavformat/mp3dec.c:268: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3dec.o): In function
`mp3_parse_vbr_tags':*
*/home/mypath/ffmpeg/libavformat/mp3dec.c:129: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3dec.o): In function
`mp3_read_probe':*
*/home/mypath/ffmpeg/libavformat/mp3dec.c:68: undefined reference to
`avpriv_mpa_decode_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3enc.o): In function
`mp3_write_audio_packet':*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:272: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3enc.o): In function
`mp3_write_xing':*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:167: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:167: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:167: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:167: undefined reference to
`avpriv_mpegaudio_decode_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3enc.o):/home/mypath/ffmpeg/libavformat/mp3enc.c:167:
more undefined references to `avpriv_mpegaudio_decode_header' follow*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mp3enc.o): In function
`mp3_write_xing':*
*/home/mypath/ffmpeg/libavformat/mp3enc.c:174: undefined reference to
`avpriv_mpa_freq_tab'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mpegtsenc.o): In function
`mpegts_write_packet_internal':*
*/home/mypath/ffmpeg/libavformat/mpegtsenc.c:1100: undefined reference to
`avpriv_mpv_find_start_code'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(mxfenc.o): In function
`mxf_parse_dnxhd_frame':*
*/home/mypath/ffmpeg/libavformat/mxfenc.c:1415: undefined reference to
`avpriv_dnxhd_get_frame_size'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(nutenc.o): In function
`find_expected_header':*
*/home/mypath/ffmpeg/libavformat/nutenc.c:64: undefined reference to
`avpriv_mpa_freq_tab'*
*/home/mypath/ffmpeg/libavformat/nutenc.c:64: undefined reference to
`avpriv_mpa_bitrate_tab'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggenc.o): In function
`ogg_write_header':*
*/home/mypath/ffmpeg/libavformat/oggenc.c:484: undefined reference to
`avpriv_split_xiph_headers'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggenc.o): In function
`ogg_build_flac_headers':*
*/home/mypath/ffmpeg/libavformat/oggenc.c:314: undefined reference to
`avpriv_flac_is_extradata_valid'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggparsedirac.o): In function
`dirac_header':*
*/home/mypath/ffmpeg/libavformat/oggparsedirac.c:40: undefined reference to
`avpriv_dirac_parse_sequence_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggparseflac.o): In function
`flac_header':*
*/home/mypath/ffmpeg/libavformat/oggparseflac.c:59: undefined reference to
`avpriv_flac_parse_streaminfo'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggparsevorbis.o): In
function `vorbis_packet':*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:360: undefined reference
to `avpriv_vorbis_parse_frame'*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:326: undefined reference
to `avpriv_vorbis_parse_reset'*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:329: undefined reference
to `avpriv_vorbis_parse_frame'*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:338: undefined reference
to `avpriv_vorbis_parse_frame'*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:355: undefined reference
to `avpriv_vorbis_parse_reset'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(oggparsevorbis.o): In
function `vorbis_header':*
*/home/mypath/ffmpeg/libavformat/oggparsevorbis.c:300: undefined reference
to `avpriv_vorbis_parse_extradata'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(rtpdec_jpeg.o): In function
`jpeg_parse_packet':*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_bits_dc_luminance'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_val_dc'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_bits_dc_chrominance'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_bits_ac_luminance'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_val_ac_luminance'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_bits_ac_chrominance'*
*/home/mypath/ffmpeg/libavformat/rtpdec_jpeg.c:302: undefined reference to
`avpriv_mjpeg_val_ac_chrominance'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(rtpenc_mpv.o): In function
`ff_rtp_send_mpegvideo':*
*/home/mypath/ffmpeg/libavformat/rtpenc_mpv.c:59: undefined reference to
`avpriv_mpv_find_start_code'*
*/home/mypath/ffmpeg/libavformat/rtpenc_mpv.c:59: undefined reference to
`avpriv_mpv_find_start_code'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(sdp.o): In function
`xiph_extradata2config':*
*/home/mypath/ffmpeg/libavformat/sdp.c:283: undefined reference to
`avpriv_split_xiph_headers'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(sdp.o): In function
`extradata2psets':*
*/home/mypath/ffmpeg/libavformat/sdp.c:171: undefined reference to
`av_bitstream_filter_init'*
*/home/mypath/ffmpeg/libavformat/sdp.c:187: undefined reference to
`av_bitstream_filter_filter'*
*/home/mypath/ffmpeg/libavformat/sdp.c:188: undefined reference to
`av_bitstream_filter_close'*
*/home/mypath/ffmpeg/libavformat/sdp.c:183: undefined reference to
`av_bitstream_filter_close'*
*/home/mypath/ffmpeg/libavformat/sdp.c:174: undefined reference to
`avpriv_mpeg4audio_sample_rates'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(spdifdec.o): In function
`spdif_get_offset_and_codec':*
*/home/mypath/ffmpeg/libavformat/spdifdec.c:60: undefined reference to
`avpriv_aac_parse_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(spdifenc.o): In function
`spdif_header_dts4':*
*/home/mypath/ffmpeg/libavformat/spdifenc.c:174: undefined reference to
`avpriv_dca_sample_rates'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(spdifenc.o): In function
`spdif_header_aac':*
*/home/mypath/ffmpeg/libavformat/spdifenc.c:354: undefined reference to
`avpriv_aac_parse_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(takdec.o): In function
`tak_read_header':*
*/home/mypath/ffmpeg/libavformat/takdec.c:119: undefined reference to
`avpriv_tak_parse_streaminfo'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(ac3dec.o): In function
`ac3_eac3_probe':*
*/home/mypath/ffmpeg/libavformat/ac3dec.c:58: undefined reference to
`avpriv_ac3_parse_header'*
*/home/mypath/ffmpeg/libavformat/ac3dec.c:58: undefined reference to
`avpriv_ac3_parse_header'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(adtsenc.o): In function
`adts_decode_extradata':*
*/home/mypath/ffmpeg/libavformat/adtsenc.c:50: undefined reference to
`avpriv_mpeg4audio_get_config'*
*/home/mypath/ffmpeg/libavformat/adtsenc.c:82: undefined reference to
`avpriv_copy_pce_data'*
*/home/mypath/ffmpeg_binARM/lib/libavformat.a(adxdec.o): In function
`adx_read_header':*
*/home/mypath/ffmpeg/libavformat/adxdec.c:90: undefined reference to
`avpriv_adx_decode_header'*
*collect2: ld returned 1 exit status*
*make[2]: *** [lib/libopencv_highgui.so.2.4.9] Error 1*
*make[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2*
*make: *** [all] Error 2*


-- 
 <http://www.vicomtech.org/>
 Dr.-Ing. Gorka Vélez Isasmendi  Investigador Colaborador /
Contributing ResearcherSistemas de transporte inteligentes e Ingeniería /
Intelligent Transport Systems and Engineering
Donostia - San Sebastián -
Spain<http://www.vicomtech.es/castellano/html/contacto/index.html>
<http://www.vicomtech.org/>
Tel: +[34] 943 30 92 30gvelez at vicomtech.org
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