I did manage to track down some of the issues (old .obj files in the link path)
but I'm still seeing the following
1>avformat.lib(md5enc.obj) : error LNK2019: unresolved external symbol
av_md5_size referenced in function write_header
1>avformat.lib(md5proto.obj) : error LNK2001: unresolved external symbol
av_md5_size
1>avformat.lib(httpauth.obj) : error LNK2001: unresolved external symbol
av_md5_size
1>avformat.lib(gxf.obj) : error LNK2019: unresolved external symbol
avpriv_frame_rate_tab referenced in function gxf_header
1>avformat.lib(matroskadec.obj) : error LNK2019: unresolved external symbol
ff_log2_tab referenced in function matroska_parse_block
1>avformat.lib(rtsp.obj) : error LNK2001: unresolved external symbol ff_log2_tab
1>avformat.lib(matroskadec.obj) : error LNK2019: unresolved external symbol
avpriv_mpeg4audio_sample_rates referenced in function matroska_read_header
1>avformat.lib(sdp.obj) : error LNK2001: unresolved external symbol
avpriv_mpeg4audio_sample_rates
1>avformat.lib(mov.obj) : error LNK2019: unresolved external symbol
avpriv_ac3_channel_layout_tab referenced in function mov_read_dac3
1>avformat.lib(mp3enc.obj) : error LNK2019: unresolved external symbol
avpriv_mpa_freq_tab referenced in function mp3_write_xing
1>avformat.lib(nutenc.obj) : error LNK2001: unresolved external symbol
avpriv_mpa_freq_tab
1>avformat.lib(isom.obj) : error LNK2001: unresolved external symbol
avpriv_mpa_freq_tab
1>avformat.lib(mxfdec.obj) : error LNK2019: unresolved external symbol
av_aes_size referenced in function mxf_read_packet
1>avformat.lib(crypto.obj) : error LNK2001: unresolved external symbol
av_aes_size
1>avformat.lib(nutenc.obj) : error LNK2019: unresolved external symbol
avpriv_mpa_bitrate_tab referenced in function find_expected_header.clone.0
1>avformat.lib(tcp.obj) : error LNK2019: unresolved external symbol
gai_strerrorA referenced in function tcp_open
1>avformat.lib(udp.obj) : error LNK2001: unresolved external symbol
gai_strerrorA
1>avformat.lib(nut.obj) : error LNK2019: unresolved external symbol
av_tree_node_size referenced in function ff_nut_add_sp
1>mingwex.lib(lib64_libmingwex_a-wassert.o) : error LNK2019: unresolved
external symbol mingw_app_type referenced in function _wassert
This is using a modified version of the output-example.c example (it's been
modified to pull data from an existing app and adds a GUI for some CODEC
options but the flow of the libav parts are pretty close)
From: [email protected] [mailto:[email protected]] On
Behalf Of Andrey Utkin
Sent: Monday, May 07, 2012 3:40 PM
To: Development with the libav* APIs
Subject: Re: [libav-api] Problems with msvc2010
could you post exact compiler errors, and maybe even minimized reproducing msvc
project tarball?
понедельник, 7 мая 2012 г. пользователь Clarke, Trevor <[email protected]> писал:
> I'm attempting to use the nightly 64-bit mingw builds with MSVC-2010 and
> I'm getting some unresolved externs. I've tried linking to the .lib
> files in "bin", the .a files in "lib" and I tried unpacking the .a files
> with ar then using lib.exe to build a .lib. My source is C++ and I'm
> wrapping libav includes in extern "C" {}. I'm seeing unresolved externs
> on:
> av_guess_format, avformat_write_header, avio_open, avcodec_open2,
> av_init_packet, avformat_alloc_context, avformat_new_stream, and
> avio_close. Dumpbin.exe indicates that these exist in the .lib/.a files
> and I'm including them in the link.exe line with no other errors.
>
> ------------------
> Trevor R.H. Clarke
> Ball Aerospace & Technologies Corp
> Opticks, Free Your Imagery (http://opticks.org)
> GPG key available on random.sks.keyserver.penguin.de
>
>
>
>
>
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--
Andrey Utkin
This message and any enclosures are intended only for the addressee. Please
notify the sender by email if you are not the intended recipient. If you are
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