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• Could not find tag for codec h264 in stream #0 codec (ffmpeg flac to alac convert)

  2 avril 2019, par Superkoira

  I’m rying to convert flac audio file into alac audio file. I’m using ffmpeg command in mac os terminal after installing ffmpeg using command brew install ffmpeg.

  After running following command

  for name in *.flac; do ffmpeg -nostdin -i "$name" -acodec alac "${name%.*}.m4a"; done

  I am getting the following error :

  Stream mapping:
  
    Stream #0:1 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
    Stream #0:0 -> #0:1 (flac (native) -> alac (native))
  
  [ipod @ 0x7fa5c6800000] Frame rate very high for a muxer not efficiently supporting it.
  
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  
  [libx264 @ 0x7fa5c5804a00] using SAR=1/1
  
  [libx264 @ 0x7fa5c5804a00] MB rate (77760000) > level limit (16711680)
  
  [libx264 @ 0x7fa5c5804a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x7fa5c5804a00] profile High, level 6.2
  
  [libx264 @ 0x7fa5c5804a00] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=6 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [ipod @ 0x7fa5c6800000] Could not find tag for codec h264 in stream #0, codec not currently supported in container
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
  
  Error initializing output stream 0:1 -- 
  
  Conversion failed!

  Is the problem located in stream #0:1 ?

  Should I be using

  -c:a alac

  instead of

  -acodec alac

• 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 ?

• 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.