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• FFmpeg : Error occurred while encoding audio stream from ac3 to aac

  4 décembre 2015, par akki_2891

  I am using following command to encode my video to h264 and aac audio codec :

  ffmpeg -i sample.mp4 -codec:v libx264 -profile:v high -level:v 4.0 -codec:a libvo_aacenc -b:a 128k output_file.mp4

  Following is a trace of the error i am getting at the console.

  Input #0, mpegts, from 'sample.mp4':
  
    Duration: 00:00:58.08, start: 1.000033, bitrate: 17290 kb/s
  
    Program 1
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1
  
  080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fl
  
  tp, 448 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090)
  
  [libx264 @ 003dc660] using SAR=1/1
  
  [libx264 @ 003dc660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 003dc660] profile High, level 4.0
  
  [libx264 @ 003dc660] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Cop
  
  yright 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
  
  block=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 chr
  
  oma_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 scen
  
  ecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmi
  
  n=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [libvo_aacenc @ 03c3c640] Unable to set encoding parameters
  
  Output #0, mp4, to 'output_file.mp4':
  
      Stream #0:0: Video: h264, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 90
  
  k tbn, 29.97 tbc
  
      Stream #0:1: Audio: aac, 48000 Hz, 5.1(side), s16, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (ac3 -> libvo_aacenc)
  
  Error while opening encoder for output stream #0:1 - maybe incorrect parameters
  
  such as bit_rate, rate, width or height

  I am really not able to find what possibly could be wrong. I dont want to copy audio codec , i wish to encode it from ac3 to aac

  Also any suggestion to make it lossless

• ffplay crashed on HLS streaming with toggled -an and -vn options

  19 septembre 2016, par oleg_otvorot

  When I try to start silent(without audio and video streams) playing of HLS (HTTP Live Streaming) by typing

  ffplay -an -vn -i "http://localhost:8080/video/find?startTime=
  
  1376716800000&endTime=1376717400000 

  I get the next error message on my console :

  ffplay version N-67063-g282c935 Copyright (coffee) 2003-2014 the FFmpeg developers
  
    built on Oct 20 2014 22:10:09 with gcc 4.9.1 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
  
  enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
  
  modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
  
  b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
  
  r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
  
  able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
  
   --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
  
  libx265 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      54. 10.100 / 54. 10.100
  
    libavcodec     56.  8.102 / 56.  8.102
  
    libavformat    56.  9.101 / 56.  9.101
  
    libavdevice    56.  1.100 / 56.  1.100
  
    libavfilter     5.  2.100 /  5.  2.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, hls,applehttp, from 'http://localhost:8080/video/find?startTime=137671
  
  6800000&endTime=1376717400000':
  
    Duration: 00:01:50.12, start: 1.418722, bitrate: 0 kb/s
  
    Program 0
  
      Metadata:
  
        variant_bitrate : 0
  
      Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [
  
  SAR 19:32 DAR 19:24], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 14
  
  7 kb/s
  
  Failed to open file 'http://localhost:8080/video/find?startTime=1376716800000&en
  
  dTime=1376717400000' or configure filtergraph

  Is this bug or feature that ffplay can’t playing video without audio/video stream ? I need to run ffplay programmatically from my java test application to view loadout of my service.

  P.S : I also tried adding the options "-nodisp -an", but that provided the same result as mentioned above.

• FFmpeg RTSP problem with IP camera

  22 avril 2014, par NoviceAndNovice

  I download FFmpeg windows binary and use ffplay.exe successfully for media files and some Ip Cameras with RTSP support (eg Acti).

  I try ffplay on a Bosch( h264) NDC 265 P camera it does not work. When i start ffplay with debug option i get folllowing

  D:\Test>ffplay -debug 1 rtsp:/XXXXXXXXXX/video
  
  FFplay version SVN-r26400, Copyright (c) 2003-2011 the FFmpeg developers
  
    built on Jan 18 2011 04:09:28 with gcc 4.4.2
  
    configuration: --enable-gpl --enable-version3 --enable-libgsm --enable-libvorb
  
  is --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg
  
   --enable-libschroedinger --enable-libopencore_amrwb --enable-libopencore_amrnb
  
  --enable-libvpx --disable-decoder=libvpx --arch=x86 --enable-runtime-cpudetect -
  
  -enable-libxvid --enable-libx264 --enable-librtmp --extra-libs='-lrtmp -lpolarss
  
  l -lws2_32 -lwinmm' --target-os=mingw32 --enable-avisynth --enable-w32threads --
  
  cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memalign-hack
  
   --enable-shared --disable-static
  
    libavutil     50.36. 0 / 50.36. 0
  
    libavcore      0.16. 1 /  0.16. 1
  
    libavcodec    52.108. 0 / 52.108. 0
  
    libavformat   52.93. 0 / 52.93. 0
  
    libavdevice   52. 2. 3 / 52. 2. 3
  
    libavfilter    1.74. 0 /  1.74. 0
  
    libswscale     0.12. 0 /  0.12. 0
  
  [rtsp @ 006db540] SDP:
  
  v=0
  
  o=- 0 0 IN IP4 XXXXXXXXXX
  
  s=LIVE VIEW
  
  t=0 0
  
  c=IN IP4 0.0.0.0
  
  m=video 0 RTP/AVP 35
  
  a=rtpmap:35 H264/90000
  
  a=control:rtsp://XXXXXXXXXX/video
  
  a=recvonly
  
  a=fmtp:35 packetization-mode=1;profile-level-id=4d0028;sprop-parameter-sets=Z00A
  
  KI2NKAoAt2AgEA==,aO48gA==
  
  
  
  [rtsp @ 006db540] video codec set to: (null)
  
  [rtsp @ 006db540] hello state=0
  
  [rtsp @ 006db540] Probe buffer size limit 5000000 reached
  
  [rtsp @ 006db540] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, rtsp, from 'rtsp:/XXXXXXXXXX/video':
  
    Metadata:
  
      title           : LIVE VIEW
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0.0, 4035, 1/90000: Video: [0][0][0][0] / 0x0000, 90k tbr, 90k tbn,
  
  90k tbc
  
  rtsp:/XXXXXXXXXX/video: c1o3u0l1d7 3n2o1t5 2o.p2e1n  Ac-oVd:e c s0
  
  .000 s:0.0 aq=    0KB vq=    0KB sq=    0B f=0/0

  I can play Bosch IP camera with VLC Player...But can not with FFmpeg...

  So

  • Does ffmpeg not support H264 ?