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• Ffmpeg is not always converting correctly

  11 juin 2016, par Lewis Day

  I’m having some problems when I’m using this command to convert video formats It sometimes works and sometimes it doesn’t. For .avi files it works for .3gpp only converts audio and for .flv it completely doesn’t work is there something that I’m doing wrong basically the $newfilename will only ever be video formats and the output format will always be a .mp4 Thankyou for any help

  ffmpeg -i /path/' . $newfilename . ' -vcodec copy -acodec copy /path/' . $rand . '.mp4'

  When I try and convert a .flv to .mp4 this is what is produces

  ffmpeg version 0.10.15 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Aug 30 2014 15:49:19 with gcc 4.4.7 20120313 (Red Hat 4.4.7-3)
  
    configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffm                      peg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-cflags='-O2 -g -pipe -Wall -Wp,-                      D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --ena                      ble-bzlib --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enab                      le-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-op                      enal --enable-libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspee                      x --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libxvid --enable-x1                      1grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-                      gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
  
    libavutil      51. 35.100 / 51. 35.100
  
    libavcodec     53. 61.100 / 53. 61.100
  
    libavformat    53. 32.100 / 53. 32.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 61.100 /  2. 61.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  6.100 /  0.  6.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, flv, from '/path/101.flv':
  
    Metadata:
  
      starttime       : 0
  
      totalduration   : 39
  
      totaldatarate   : 639
  
      bytelength      : 3096565
  
      canseekontime   : true
  
    Duration: 00:00:38.66, start: 0.000000, bitrate: 640 kb/s
  
      Stream #0:0: Video: flv1, yuv420p, 426x240, 581 kb/s, 30 tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: mp3, 22050 Hz, stereo, s16, 64 kb/s
  
  [buffer @ 0x679ce0] w:426 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
  
  Incompatible sample format 's16' for codec 'aac', auto-selecting format 'flt'
  
  [libx264 @ 0x679640] using cpu capabilities: none!
  
  [libx264 @ 0x679640] profile High, level 2.1
  
  [libx264 @ 0x679640] 264 - core 120 r2151 a3f4407 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http                      ://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7                       psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fas                      t_pskip=1 chroma_qp_offset=-2 threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0                       constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 k                      eyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.6                      0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [NULL @ 0x682a60] Codec is experimental but experimental codecs are not enabled, see -strict -2
  
  Output #0, mp4, to 'path/55271313.mp4':
  
    Metadata:
  
      starttime       : 0
  
      totalduration   : 39
  
      totaldatarate   : 639
  
      bytelength      : 3096565
  
      canseekontime   : true
  
      Stream #0:0: Video: h264, yuv420p, 426x240, q=-1--1, 90k tbn, 30 tbc
  
      Stream #0:1: Audio: none, 22050 Hz, stereo, flt, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (flv -> libx264)
  
    Stream #0:1 -> #0:1 (mp3 -> aac)
  
  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate                      , width or height

• ffmpeg conversion x264 [error] : malloc of size 26200384 failed [closed]

  13 janvier 2021, par Anshul Singh

  I'm trying to use FFMPEG to transcode a video with very large frames but I'm getting the following error when trying to convert 4k video on my server.

  


  ffmpeg version N-55112-g7eb9cf593e-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg  libavutil      56. 61.100 / 56. 61.100\n  libavcodec     58.114.100 / 58.114.100
     libavformat    58. 64.100 / 58. 64.100
      libavdevice    58. 11.103 / 58. 11.103
       libavfilter     7. 91.100 /  7. 91.100
         libswscale      5.  8.100 
/  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
    libpostproc    55.  8.100 / 55.  8.100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5d798c0] st: 0 edit list: 1 Missing key frame while searching for timestamp: 0
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5d798c0] st: 0 edit list 1 Cannot find an index entry before timestamp: 0.
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://example.com':
      Metadata:
        major_brand     : mp42
        minor_version   : 0
        compatible_brands: mp42mp41
        creation_time   : 2015-07-28T16:09:40.000000Z
        Duration: 00:00:15.04, start: 0.000000, bitrate: 41976 kb/s
        Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), 
    yuv420p(tv, bt709), 3840x2160, 41762 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
    Metadata:
    creation_time   : 2015-07-28T16:09:40.000000Z
    handler_name    : ?Mainconcept Video Media Handler
    encoder         : AVC Coding
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    Metadata:
    creation_time   : 2015-07-28T16:09:40.000000Z
    handler_name    : #Mainconcept MP4 Sound Media Handler
    Stream mapping:
        Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
        Stream #0:1 -> #0:1 (aac (native) -> aac (native))
        Press [q] to stop, [?] for help
        [libx264 @ 0x5d92240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
        [libx264 @ 0x5d92240] profile Main, level 5.1, 4:2:0, 8-bit
        [libx264 @ 0x5d92240] 264 - core 161 r3027 4121277 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=750 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
        frame=    6 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    \rx264 [error]: malloc of size 26200384 failed
        Video encoding failed
        [libx264 @ 0x5d92240] final ratefactor: 40.36
        Conversion failed!


  


  My server has 1Gb of memory.

  


• How to insert infinite audio into the live streaming by using ffmpeg ?

  20 juillet 2017, par Xiang Wang

  I use the following command to insert infinite audio into rtsp stream, but -stream_loop -1 didn’t work. How to fix it ?

  ffmpeg -i rtsp://admin:12345@192.168.31.104/h264/ch1/main/av_stream  -stream_loop -1 -i blank.aac  -vcodec libx264 -acodec aac -f flv rtmp://localhost/live/test

  This is the full console when I executed the following command :

  ffmpeg -i "rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0" -f lavfi -i anullsrc -vcodec libx264 -acodec aac -f flv rtmp://live.lamp.mowainfo.com:11935/live/test
  
  
  
  mowa@OpenWRT-Dev:~$ ffmpeg -i "rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0" -f lavfi -i anullsrc -vcodec libx264 -acodec aac -f flv rtmp://live.lamp.mowainfo.com:11935/live/test
  
  ffmpeg version N-86764-ga824685 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --enable-nonfree --enable-gpl --enable-libx264 --enable-zlib
  
    libavutil      55. 67.100 / 55. 67.100
  
    libavcodec     57.100.104 / 57.100.104
  
    libavformat    57. 75.100 / 57. 75.100
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 95.100 /  6. 95.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Guessed Channel Layout for Input Stream #0.1 : mono
  
  Input #0, rtsp, from 'rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0':
  
    Metadata:
  
      title           : RTSP Session/2.0
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 25.08 tbr, 90k tbn, 180k tbc
  
      Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
  
  Input #1, lavfi, from 'anullsrc':
  
    Duration: N/A, start: 0.000000, bitrate: 705 kb/s
  
      Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [rtsp @ 0x23d0520] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  
  [libx264 @ 0x244d200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x244d200] profile High, level 3.1
  
  [libx264 @ 0x244d200] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, flv, to 'rtmp://live.lamp.mowainfo.com:11935/live/test':
  
    Metadata:
  
      title           : RTSP Session/2.0
  
      encoder         : Lavf57.75.100
  
      Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x720, q=-1--1, 25.08 fps, 1k tbn, 25.08 tbc
  
      Metadata:
  
        encoder         : Lavc57.100.104 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.100.104 aac
  
  Past duration 0.642738 too large   13286kB time=00:03:50.22 bitrate= 472.8kbits/s dup=0 drop=4 speed=0.985x