[gst-devel] Can't build gst-ffmpeg on MinGW

Marko Mikkonen mmikkone at paju.oulu.fi
Sat Jan 29 21:19:44 CET 2011 

I have a little problem when building gst-ffmpeg-0.10.11 on MinGW. I get 
warning messages saying that shared libraries of avformat, avcodec and 
avutil are not built. Later I get a lot of linker errors about missing 
references to functions, all of which seem to reside in 
gst-libs/ext/ffmpeg subdirectories. How can I build shared libraries for 
avformat, avcodec and avutil? I'm not very familiar with autotools so 
this is a big problem for me.

These are my commands:
./configure --prefix=/c/MinGW --enable-shared --disable-static
make install

Here are the warnings and error messages:

Making install in ext
make[1]: Entering directory `/home/Marko/gst-ffmpeg-0.10.11/ext'
Making install in ffmpeg
make[2]: Entering directory `/home/Marko/gst-ffmpeg-0.10.11/ext/ffmpeg'
   CCLD   libgstffmpeg.la

*** Warning: Trying to link with static lib archive 
../../gst-libs/ext/ffmpeg/libavformat/libavformat.a.
*** I have the capability to make that library automatically link in when
*** you link to this library.  But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because the file extensions .a of this argument makes me believe
*** that it is just a static archive that I should not use here.

*** Warning: Trying to link with static lib archive 
../../gst-libs/ext/ffmpeg/libavcodec/libavcodec.a.
*** I have the capability to make that library automatically link in when
*** you link to this library.  But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because the file extensions .a of this argument makes me believe
*** that it is just a static archive that I should not use here.

*** Warning: Trying to link with static lib archive 
../../gst-libs/ext/ffmpeg/libavutil/libavutil.a.
*** I have the capability to make that library automatically link in when
*** you link to this library.  But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because the file extensions .a of this argument makes me believe
*** that it is just a static archive that I should not use here.
Info: resolving ___gst_debug_min by linking to __imp____gst_debug_min 
(auto-import)
Info: resolving _GST_CAT_DEFAULT by linking to __imp__GST_CAT_DEFAULT 
(auto-import)
Creating library file: .libs/libgstffmpeg.dll.a
/mingw/bin/../lib/gcc/mingw32/4.5.0/../../../../mingw32/bin/ld.exe: 
warning: auto-importing has been activated without --enable-auto-import 
specified on the command line.
This should work unless it involves constant data structures referencing 
symbols from auto-imported DLLs.
.libs/libgstffmpeg_la-gstffmpeg.o: In function `plugin_init':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:134: 
undefined reference to `av_log_set_callback'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:139: 
undefined reference to `av_register_all'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:154: 
undefined reference to `register_protocol'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:155: 
undefined reference to `register_protocol'
.libs/libgstffmpeg_la-gstffmpeg.o: In function `gst_ffmpeg_avcodec_open':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:52: 
undefined reference to `avcodec_open'
.libs/libgstffmpeg_la-gstffmpeg.o: In function `gst_ffmpeg_avcodec_close':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:64: 
undefined reference to `avcodec_close'
.libs/libgstffmpeg_la-gstffmpeg.o: In function 
`gst_ffmpeg_av_find_stream_info':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpeg.c:76: 
undefined reference to `av_find_stream_info'
.libs/libgstffmpeg_la-gstffmpegcodecmap.o: In function 
`gst_ffmpeg_get_palette':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:52: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:53: 
undefined reference to `av_malloc'
.libs/libgstffmpeg_la-gstffmpegcodecmap.o: In function 
`gst_ffmpeg_codecid_to_caps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:1547: 
undefined reference to `avcodec_find_decoder'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:1547: 
undefined reference to `avcodec_find_encoder'
.libs/libgstffmpeg_la-gstffmpegcodecmap.o: In function 
`gst_ffmpeg_caps_with_codecid':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:2250: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:2276: 
undefined reference to `av_mallocz'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:2325: 
undefined reference to `av_mallocz'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:2291: 
undefined reference to `av_mallocz'
.libs/libgstffmpeg_la-gstffmpegmake[2]: Leaving directory 
`/home/Marko/gst-ffmpeg-0.10.11/ext/ffmpeg'
make[1]: Leaving directory `/home/Marko/gst-ffmpeg-0.10.11/ext'
codecmap.o: In function `gst_ffmpeg_caps_to_codecid':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:3288: 
undefined reference to `avcodec_find_decoder_by_name'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:3288: 
undefined reference to `avcodec_find_encoder_by_name'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:3300: 
undefined reference to `avcodec_find_decoder_by_name'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcodecmap.c:3300: 
undefined reference to `avcodec_find_encoder_by_name'
.libs/libgstffmpeg_la-gstffmpegutils.o: In function 
`gst_ffmpeg_get_codecid_longname':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.c:31: 
undefined reference to `avcodec_find_decoder'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.c:31: 
undefined reference to `avcodec_find_encoder'
.libs/libgstffmpeg_la-gstffmpegutils.o: In function `new_aligned_buffer':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.c:410: 
undefined reference to `av_malloc'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.c:412: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function `gst_ffmpegenc_init':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:248: 
undefined reference to `avcodec_alloc_context'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:249: 
undefined reference to `avcodec_alloc_frame'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function 
`gst_ffmpegenc_encode_audio':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:860: 
undefined reference to `avcodec_encode_audio'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function 
`gst_ffmpegenc_chain_audio':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:913: 
undefined reference to `av_get_bits_per_sample_format'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:1024: 
undefined reference to `av_get_bits_per_sample'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function 
`gst_ffmpegenc_flush_buffers':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:1071: 
undefined reference to `avcodec_encode_video'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function 
`gst_ffmpeg_time_gst_to_ff':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:74: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function 
`gst_ffmpegenc_chain_video':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:781: 
undefined reference to `avcodec_encode_video'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function `gst_ffmpegenc_getcaps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:448: 
undefined reference to `avcodec_alloc_context'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:487: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function `gst_ffmpegenc_setcaps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:529: 
undefined reference to `avcodec_get_context_defaults'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function `gst_ffmpegenc_finalize':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:298: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:299: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegenc.o: In function `gst_ffmpegenc_register':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:1307: 
undefined reference to `av_codec_next'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:1378: 
undefined reference to `av_codec_next'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegenc.c:1378: 
undefined reference to `av_codec_next'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_init':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:425: 
undefined reference to `avcodec_alloc_context'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:426: 
undefined reference to `avcodec_alloc_frame'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_flush_pcache':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2351: 
undefined reference to `av_parser_close'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2352: 
undefined reference to `av_parser_init'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_audio_frame':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2109: 
undefined reference to `avcodec_decode_audio2'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_video_frame':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:1754: 
undefined reference to `avcodec_decode_video'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `get_output_buffer':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:1568: 
undefined reference to `av_picture_copy'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_chain':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2510: 
undefined reference to `avcodec_flush_buffers'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2589: 
undefined reference to `av_parser_parse'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_close':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:587: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:592: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:601: 
undefined reference to `av_parser_close'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_setcaps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:733: 
undefined reference to `avcodec_get_context_defaults'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_open':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:641: 
undefined reference to `av_parser_init'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:656: 
undefined reference to `av_parser_init'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_get_buffer':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:989: 
undefined reference to `avcodec_default_get_buffer'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:1016: 
undefined reference to `avcodec_align_dimensions'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:1032: 
undefined reference to `avcodec_default_get_buffer'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_finalize':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:456: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:461: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_sink_event':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2378: 
undefined reference to `avcodec_flush_buffers'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function `gst_ffmpegdec_register':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2850: 
undefined reference to `av_codec_next'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:2973: 
undefined reference to `av_codec_next'
.libs/libgstffmpeg_la-gstffmpegdec.o: In function 
`gst_ffmpegdec_release_buffer':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdec.c:1078: 
undefined reference to `avcodec_default_release_buffer'
.libs/libgstffmpeg_la-gstffmpegcfg.o: In function 
`gst_ffmpeg_cfg_install_property':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcfg.c:769: 
undefined reference to `avcodec_alloc_context'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcfg.c:771: 
undefined reference to `avcodec_get_context_defaults'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegcfg.c:882: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpegdemux_close':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:344: 
undefined reference to `av_close_input_file'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpeg_time_ff_to_gst':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpegdemux_do_seek':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:442: 
undefined reference to `av_find_default_stream_index'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpeg_time_gst_to_ff':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:74: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpegdemux_do_seek':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:468: 
undefined reference to `av_index_search_timestamp'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpeg_time_ff_to_gst':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpegdemux_do_seek':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:488: 
undefined reference to `av_seek_frame'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpeg_time_ff_to_gst':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function `gst_ffmpegdemux_loop':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1345: 
undefined reference to `av_read_frame'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpeg_time_ff_to_gst':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:59: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function `gst_ffmpegdemux_loop':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1473: 
undefined reference to `av_free_packet'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function `gst_ffmpegdemux_open':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1162: 
undefined reference to `av_open_input_file'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function `gst_ffmpegdemux_loop':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1436: 
undefined reference to `av_picture_copy'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1551: 
undefined reference to `av_free_packet'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1562: 
undefined reference to `av_free_packet'
.libs/libgstffmpeg_la-gstffmpegdemux.o: In function 
`gst_ffmpegdemux_register':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:1865: 
undefined reference to `av_iformat_next'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdemux.c:2025: 
undefined reference to `av_iformat_next'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpegmux_collected':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:638: 
undefined reference to `url_fopen'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:645: 
undefined reference to `av_set_parameters'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:652: 
undefined reference to `av_write_header'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:662: 
undefined reference to `put_flush_packet'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpeg_time_gst_to_ff':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:74: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpegmux_collected':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:754: 
undefined reference to `av_write_frame'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpeg_time_gst_to_ff':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegutils.h:74: 
undefined reference to `av_rescale_q'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpegmux_collected':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:735: 
undefined reference to `av_picture_copy'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:760: 
undefined reference to `av_write_trailer'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:762: 
undefined reference to `put_flush_packet'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:763: 
undefined reference to `url_fclose'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpegmux_change_state':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:801: 
undefined reference to `url_fclose'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function 
`gst_ffmpegmux_request_new_pad':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:453: 
undefined reference to `av_new_stream'
.libs/libgstffmpeg_la-gstffmpegmux.o: In function `gst_ffmpegmux_register':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:877: 
undefined reference to `av_oformat_next'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegmux.c:951: 
undefined reference to `av_oformat_next'
.libs/libgstffmpeg_la-gstffmpegdeinterlace.o: In function 
`gst_ffmpegdeinterlace_chain':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:190: 
undefined reference to `avpicture_deinterlace'
.libs/libgstffmpeg_la-gstffmpegdeinterlace.o: In function 
`gst_ffmpegdeinterlace_sink_setcaps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:124: 
undefined reference to `avcodec_alloc_context'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:136: 
undefined reference to `av_free'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:139: 
undefined reference to `avpicture_get_size'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:145: 
undefined reference to `gst_caps_set_value'
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegdeinterlace.c:130: 
undefined reference to `av_free'
.libs/libgstffmpeg_la-gstffmpegaudioresample.o: In function 
`gst_ffmpegaudioresample_transform':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegaudioresample.c:278: 
undefined reference to `audio_resample'
.libs/libgstffmpeg_la-gstffmpegaudioresample.o: In function 
`gst_ffmpegaudioresample_set_caps':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegaudioresample.c:251: 
undefined reference to `audio_resample_init'
.libs/libgstffmpeg_la-gstffmpegaudioresample.o: In function 
`gst_ffmpegaudioresample_finalize':
C:\MinGW\msys\1.0\home\Marko\gst-ffmpeg-0.10.11\ext\ffmpeg/gstffmpegaudioresample.c:154: 
undefined reference to `audio_resample_close'
collect2: ld returned 1 exit status
make[2]: *** [libgstffmpeg.la] Error 1
make[1]: *** [install-recursive] Error 1
make: *** [install-recursive] Error 1
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