我已经安装了 ffmpeg、imagic 和 ffmpeg-php。它可以工作，但我有一个问题：GD 支持被禁用。
这是我的phpinfo()行：
ffmpeg
ffmpeg-php version 0.7.0
ffmpeg-php built on Oct 29 2012 14:22:26
ffmpeg-php gd support disabled
ffmpeg libavcodec version Lavc54.59.100
ffmpeg libavcodec license nonfree and unredistributable
ffmpeg libavformat version Lavf54.29.104
ffmpeg libavformat license nonfree and unredistributable
ffmpeg swscaler version SwS2.1.101
ffmpeg swscaler license nonfree and unredistributable
ffmpeg codec_list a64multi(v), a64multi5(v), aasc(v), amv(v), amv(v), anm(v), ansi(v), asv1(v), asv1(v), asv2(v), asv2(v), aura(v), aura2(v), avrp(v), avrp(v), avrn(v), avs(v), avui(v), avui(v), ayuv(v), ayuv(v), bethsoftvid(v), bfi(v), binkvideo(v), bmp(v), bmp(v), bmv_video(v), c93(v), cavs(v), cdgraphics(v), cdxl(v), cinepak(v), cljr(v), cljr(v), cllc(v), cpia(v), camstudio(v), cyuv(v), dfa(v), dirac(v), dnxhd(v), dnxhd(v), dpx(v), dpx(v), dsicinvideo(v), dvvideo(v), dvvideo(v), dxa(v), dxtory(v), eacmv(v), eamad(v), eatgq(v), eatgv(v), eatqi(v), 8bps(v), 8svx_exp(a), 8svx_fib(a), escape124(v), escape130(v), exr(v), ffv1(v), ffv1(v), ffvhuff(v), ffvhuff(v), flashsv(v), flashsv(v), flashsv2(v), flashsv2(v), flic(v), flv(v), flv(v), 4xm(v), fraps(v), frwu(v), gif(v), gif(v), h261(v), h261(v), h263(v), h263(v), h263i(v), h263p(v), h263p(v), h264(v), h264_vda(v), huffyuv(v), huffyuv(v), idcinvideo(v), iff_byterun1(v), iff_ilbm(v), indeo2(v), indeo3(v), indeo4(v), indeo5(v), interplayvideo(v), j2k(v), j2k(v), jpegls(v), jpegls(v), jv(v), kgv1(v), kmvc(v), lagarith(v), ljpeg(v), loco(v), mdec(v), mimic(v), mjpeg(v), mjpeg(v), mjpegb(v), mmvideo(v), motionpixels(v), mpegvideo_xvmc(v), mpeg1video(v), mpeg1video(v), mpeg2video(v), mpeg2video(v), mpeg4(v), mpeg4(v), mpegvideo(v), msa1(v), msmpeg4v1(v), msmpeg4v2(v), msmpeg4v2(v), msmpeg4(v), msmpeg4(v), msrle(v), mss1(v), mss2(v), msvideo1(v), msvideo1(v), mszh(v), mts2(v), mxpeg(v), nuv(v), paf_video(v), pam(v), pam(v), pbm(v), pbm(v), pcx(v), pcx(v), pgm(v), pgm(v), pgmyuv(v), pgmyuv(v), pictor(v), png(v), png(v), ppm(v), ppm(v), prores(v), prores(v), prores_anatoliy(v), prores_kostya(v), prores_lgpl(v), ptx(v), qdraw(v), qpeg(v), qtrle(v), qtrle(v), r10k(v), r10k(v), r210(v), r210(v), rawvideo(v), rawvideo(v), rl2(v), roqvideo(v), roqvideo(v), rpza(v), rv10(v), rv10(v), rv20(v), rv20(v), rv30(v), rv40(v), s302m(a), sanm(v), sgi(v), sgi(v), smackvid(v), smc(v), snow(v), snow(v), sp5x(v), sunrast(v), sunrast(v), svq1(v), svq1(v), svq3(v), targa(v), targa(v), theora(v), thp(v), tiertexseqvideo(v), tiff(v), tiff(v), tmv(v), truemotion1(v), truemotion2(v), camtasia(v), tscc2(v), txd(v), ultimotion(v), utvideo(v), utvideo(v), v210(v), v210(v), v210x(v), v308(v), v308(v), v408(v), v408(v), v410(v), v410(v), vb(v), vble(v), vc1(v), vc1image(v), vcr1(v), vmdvideo(v), vmnc(v), vp3(v), vp5(v), vp6(v), vp6a(v), vp6f(v), vp8(v), vqavideo(v), wmv1(v), wmv1(v), wmv2(v), wmv2(v), wmv3(v), wmv3image(v), wnv1(v), xan_wc3(v), xan_wc4(v), xbm(v), xbm(v), xl(v), xwd(v), xwd(v), y41p(v), y41p(v), yop(v), yuv4(v), yuv4(v), zerocodec(v), zlib(v), zlib(v), zmbv(v), zmbv(v), aac(a), aac(a), aac_latm(a), ac3(a), ac3(a), ac3_fixed(a), alac(a), alac(a), als(a), amrnb(a), amrwb(a), ape(a), atrac1(a), atrac3(a), binkaudio_dct(a), binkaudio_rdft(a), bmv_audio(a), cook(a), dca(a), dca(a), dsicinaudio(a), eac3(a), eac3(a), wavesynth(a), flac(a), flac(a), g723_1(a), g723_1(a), g729(a), gsm(a), gsm_ms(a), iac(a), imc(a), mace3(a), mace6(a), mlp(a), mp1(a), mp1float(a), mp2(a), mp2(a), mp2float(a), mp3(a), mp3float(a), mp3adu(a), mp3adufloat(a), mp3on4(a), mp3on4float(a), mpc7(a), mpc8(a), nellymoser(a), nellymoser(a), paf_audio(a), qcelp(a), qdm2(a), real_144(a), real_144(a), real_288(a), ralf(a), shorten(a), sipr(a), smackaud(a), sonic(a), sonic(a), sonicls(a), truehd(a), truespeech(a), tta(a), twinvq(a), vmdaudio(a), vorbis(a), vorbis(a), wavpack(a), wmalossless(a), wmapro(a), wmav1(a), wmav1(a), wmav2(a), wmav2(a), wmavoice(a), ws_snd1(a), pcm_alaw(a), pcm_alaw(a), pcm_bluray(a), pcm_dvd(a), pcm_f32be(a), pcm_f32be(a), pcm_f32le(a), pcm_f32le(a), pcm_f64be(a), pcm_f64be(a), pcm_f64le(a), pcm_f64le(a), pcm_lxf(a), pcm_mulaw(a), pcm_mulaw(a), pcm_s8(a), pcm_s8(a), pcm_s8_planar(a), pcm_s16be(a), pcm_s16be(a), pcm_s16le(a), pcm_s16le(a), pcm_s16le_planar(a), pcm_s24be(a), pcm_s24be(a), pcm_s24daud(a), pcm_s24daud(a), pcm_s24le(a), pcm_s24le(a), pcm_s32be(a), pcm_s32be(a), pcm_s32le(a), pcm_s32le(a), pcm_u8(a), pcm_u8(a), pcm_u16be(a), pcm_u16be(a), pcm_u16le(a), pcm_u16le(a), pcm_u24be(a), pcm_u24be(a), pcm_u24le(a), pcm_u24le(a), pcm_u32be(a), pcm_u32be(a), pcm_u32le(a), pcm_u32le(a), pcm_zork(a), interplay_dpcm(a), roq_dpcm(a), roq_dpcm(a), sol_dpcm(a), xan_dpcm(a), adpcm_4xm(a), adpcm_adx(a), adpcm_adx(a), adpcm_ct(a), adpcm_ea(a), adpcm_ea_maxis_xa(a), adpcm_ea_r1(a), adpcm_ea_r2(a), adpcm_ea_r3(a), adpcm_ea_xas(a), g722(a), g722(a), g726(a), g726(a), adpcm_ima_amv(a), adpcm_ima_apc(a), adpcm_ima_dk3(a), adpcm_ima_dk4(a), adpcm_ima_ea_eacs(a), adpcm_ima_ea_sead(a), adpcm_ima_iss(a), adpcm_ima_qt(a), adpcm_ima_qt(a), adpcm_ima_smjpeg(a), adpcm_ima_wav(a), adpcm_ima_wav(a), adpcm_ima_ws(a), adpcm_ms(a), adpcm_ms(a), adpcm_sbpro_2(a), adpcm_sbpro_3(a), adpcm_sbpro_4(a), adpcm_swf(a), adpcm_swf(a), adpcm_thp(a), adpcm_xa(a), adpcm_yamaha(a), adpcm_yamaha(a), vima(a), ass(s), ass(s), dvbsub(s), dvbsub(s), dvdsub(s), dvdsub(s), jacosub(s), microdvd(s), mov_text(s), mov_text(s), pgssub(s), realtext(s), sami(s), srt(s), srt(s), subrip(s), subrip(s), subviewer(s), webvtt(s), xsub(s), xsub(s), libfaac(a), libmp3lame(a), libx264(v), libx264rgb(v), libxvid(v), bintext(v), xbin(v), idf(v),
我使用 MAMP，PHP 5.3.6。我已经搜索了 3 天的解决方案，可悲的是没有结果。