Newest 'ffmpeg' Questions - Stack Overflow

Les articles publiés sur le site

• duplicate symbol _ff_inverse in MediaLibiOS+FFmpeg-09/libavcodec.a(inverse.o) and MediaLibiOS+FFmpeg-09/libavutil.a(inverse.o)

  29 octobre 2012, par Taha Selim Bebek

  If I create a new project in xcode and add MediaLibiOS to the project it builds without any errors, but if I add it to my existing project there is an error of duplicate symbols in MediaLib iOS. Error goes like this :

  duplicate symbol _ff_inverse in: /Users/tbebek/Desktop/4.0_RC/MediaLibiOS+FFmpeg-09/libavcodec.a(inverse.o) /Users/tbebek/Desktop/4.0_RC/MediaLibiOS+FFmpeg-09/libavutil.a(inverse.o) ld: 1 duplicate symbol for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation)

  Any ideas? Thanks.

• how to publish flv file using ffmpeg to RTMP server in `real time` ?

  29 octobre 2012, par Akram Berkawy

  what i'm trying to do is publishing a .flv media file to RTMP server to let subscribers watch it. i'm testing to view the stream in several subscribers (the oflaDemo) and with ffplay.

  the problem is that ffmpeg publish the 5 minutes .flv file to the server in nearly 20 seconds, in these 20 seconds the stream appear on subscribes, but after that it cuts. the command i use is:

  ffmpeg -i file.flv -re -acodec copy -vcodec copy -f flv "rtmp://localhost/oflaDemo/aaa live=1"
  

  how can i force ffmpeg to stream the 5 minutes file in 5 minutes, or any other solution.

  thanks.

• ffmpeg gd support disabled

  29 octobre 2012, par user1783417

  I have installed ffmpeg, imagic, and ffmpeg-php. It works, but I have a problem: GD support is disabled.

  Here are my phpinfo() rows:

  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),
  

  I use MAMP, PHP 5.3.6. I have searched for solution for 3 days, no result sadly.

• Capture screen Tegra 2 GPU with ffmpeg

  29 octobre 2012, par Erb

  The Tegra 2/3 SOC does not provide access to framebuffer using the usual /dev/graphics/fb0 dev. I know that it is still possible to capture the framebuffer using the gralloc method and actually some applications already use this method.

  Is there a way to make FFMpeg use the gralloc method to do the capture? Alternatively, Is there a way to emulate /dev/fb0 for Tegra SOC ?

• Error while capturing video via RTSP from a network camera using OpenCV and FFMPEG

  29 octobre 2012, par Dídac Pérez

  I am using OpenCV and FFMPEG to capture frames from a network camera using RTSP. The point is that OpenCV successfully loads the FFMPEG .dll but icvCreateFileCapture_FFMPEG_p returns false in the following code of cap_ffmpeg.cpp:

  virtual bool open( const char* filename )
  {
      close();
  
      icvInitFFMPEG();
      if( !icvCreateFileCapture_FFMPEG_p )
          return false;
      ffmpegCapture = icvCreateFileCapture_FFMPEG_p( filename );
      return ffmpegCapture != 0;
  }