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• avutil/libm : use FFMIN instead of fmin()

  6 juin 2014, par Michael Niedermayer

  avutil/libm : use FFMIN instead of fmin()
  MSVC apparently doesnt support fmin() either
  Suggested/Found-by : ubitux, Daemon404, nevcairiel
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavutil/libm.h

• 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.

• OpenCV is able to read the stream but VLC not

  25 avril 2023, par Ahmet Çavdar

  I'm trying to stream my webcam frames to an UDP address. Here is my sender code.

  


  cmd = ['ffmpeg', '-y', '-f', 'rawvideo', '-pixel_format', 'bgr24', '-video_size', f'{width}x{height}', 
       '-i', '-', '-c:v', 'mpeg4','-preset', 'ultrafast', '-tune', 'zerolatency','-b:v', '1.5M',
       '-f', 'mpegts', f'udp://@{ip_address}:{port}']
p = subprocess.Popen(cmd, stdin=subprocess.PIPE)
camera = cv2.VideoCapture(0)
while True:
    ret, frame = camera.read()
    cv2.imshow("Sender",frame)
    if not ret:
        break
    p.stdin.write(frame.tobytes())
    p.stdin.flush()
    if cv2.waitKey(1) & 0xFF == ord('q'):
            break


  


  This Python code can make stream successfully. I can read the stream with this receiver code.

  


  q = queue.Queue()
def receive():
    cap = cv2.VideoCapture('udp://@xxx.x.xxx.xxx:5000')
    ret, frame = cap.read()
    q.put(frame)
    while ret:
        ret, frame = cap.read()
        q.put(frame)
def display():
    while True:
        if q.empty() != True:
            frame = q.get()
            cv2.imshow('Receiver', frame)
        k = cv2.waitKey(1) & 0xff
        if k == 27:  # press 'ESC' to quit
            break
tr = threading.Thread(target=receive, daemon=True)
td = threading.Thread(target=display)
tr.start()
td.start()
td.join()


  


  But I can not watch the stream from VLC. I'm going to Media->Open Network Stream->
udp ://@xxx.x.xxx.xxx:5000 to watch stream. After some seconds, the timer that located bottom left of VLC starts to increase but there are no frames in screen, just VLC icon.

  


  I checked firewall rules, opened all ports to UDP connections. I am using my IP address to send frames and watch them.
Also, I tried other video codecs like h264, hvec, mpeg4, rawvideo.
Additionally, I tried to watch stream by using Windows Media Player but it didn't work.

  


  What should I do to fix this issue ?