Something

gcc-4.2 -o mplayer.exe osdep/mplayer-rc.o mplayer.o m_property.o mp_fifo.o mp_msg.o mixer.o parser-mpcmd.o subopt-helper.o command.o asxparser.o codec-cfg.o cpudetect.o edl.o find_sub.o get_path.o m_config.o m_option.o m_struct.o mpcommon.o parser-cfg.o playtree.o playtreeparser.o spudec.o sub_cc.o subreader.o vobsub.o unrarlib.o libvo/libvo.a libao2/libao2.a input/libinput.a vidix/libvidix.a libmpcodecs/libmpcodecs.a libaf/libaf.a libmpdemux/libmpdemux.a stream/stream.a libswscale/libswscale.a libvo/libosd.a libavformat/libavformat.a libavcodec/libavcodec.a libavutil/libavutil.a libpostproc/libpostproc.a loader/libloader.a mp3lib/libmp3.a liba52/liba52.a libmpeg2/libmpeg2.a libfaad2/libfaad2.a tremor/libvorbisidec.a dvdread/libdvdread.a libdvdcss/libdvdcss.a osdep/libosdep.a -lopengl32 -lgdi32 -lgdi32 -lwinmm -lgdi32 -lwinmm -lws2_32 -liconv -lpng -lz -ljpeg -lgif -lz -ldts -ladvapi32 -lole32 -lole32 -luuid     -lm   
libavcodec/libavcodec.a(allcodecs.o): In function `avcodec_register_all':
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:69: undefined reference to `_bmp_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:76: undefined reference to `_dnxhd_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:83: undefined reference to `_flashsv_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:88: undefined reference to `_gif_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:89: undefined reference to `_h261_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:99: undefined reference to `_jpegls_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:103: undefined reference to `_ljpeg_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:106: undefined reference to `_mjpeg_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:121: undefined reference to `_pam_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:122: undefined reference to `_pbm_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:123: undefined reference to `_pgm_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:124: undefined reference to `_pgmyuv_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:125: undefined reference to `_png_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:126: undefined reference to `_ppm_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:130: undefined reference to `_qtrle_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:131: undefined reference to `_rawvideo_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:132: undefined reference to `_roq_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:136: undefined reference to `_sgi_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:141: undefined reference to `_svq1_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:143: undefined reference to `_targa_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:147: undefined reference to `_tiff_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:170: undefined reference to `_zlib_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:171: undefined reference to `_zmbv_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:175: undefined reference to `_ac3_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:182: undefined reference to `_flac_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:191: undefined reference to `_libmp3lame_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:196: undefined reference to `_mp2_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:212: undefined reference to `_vorbis_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:214: undefined reference to `_wmav1_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:215: undefined reference to `_wmav2_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:240: undefined reference to `_roq_dpcm_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:267: undefined reference to `_dvbsub_encoder'
e:/mplayer-testclips/mplayer/libavcodec/allcodecs.c:268: undefined reference to `_dvdsub_encoder'
libavcodec/libavcodec.a(dsputil.o): In function `dsputil_init':
e:/mplayer-testclips/mplayer/libavcodec/dsputil.c:4139: undefined reference to `_ff_flac_compute_autocorr'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `encode_picture':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:2882: undefined reference to `_ff_mjpeg_encode_picture_header'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:2886: undefined reference to `_ff_h261_encode_picture_header'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `write_slice_end':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1984: undefined reference to `_ff_mjpeg_encode_stuffing'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `MPV_encode_end':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:739: undefined reference to `_ff_mjpeg_encode_close'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `MPV_encode_picture':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1243: undefined reference to `_ff_mjpeg_encode_picture_trailer'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `MPV_encode_init':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:534: undefined reference to `_ff_mjpeg_encode_init'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:542: undefined reference to `_ff_h261_get_picture_format'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:687: undefined reference to `_ff_h261_encode_init'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `encode_mb_hq':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1735: undefined reference to `_ff_mjpeg_encode_mb'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1722: undefined reference to `_ff_h261_encode_mb'
libavcodec/libavcodec.a(mpegvideo_enc.o): In function `encode_thread':
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1735: undefined reference to `_ff_mjpeg_encode_mb'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:1722: undefined reference to `_ff_h261_encode_mb'
e:/mplayer-testclips/mplayer/libavcodec/mpegvideo_enc.c:2084: undefined reference to `_ff_h261_reorder_mb_index'
collect2: ld returned 1 exit status
make: *** [mplayer.exe] Error 1