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• ffmpeg Streams mixed when using -filter_complex amerge

  25 août 2014, par BrainStone

  I am currently having issues with ffmpeg and one of its filters.

  I am trying to merge 2 audio streams of a video into one. for this purpose I tried this command :

  ffmpeg -i /home/maniaplanet/Videos/ManiaPlanet\ 2014-08-21\ 20-09-13-082.avi.output.mkv -filter_complex "[0:1][0:2] amerge=inputs=2"-c:v copy -c:a libvo_aacenc -b:a 256k /var/www/files/output.mp4

  But I get this output :

  ffmpeg version 1.0.10 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jul 25 2014 07:50:40 with gcc 4.7 (Debian 4.7.2-5)
  
    configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis  libavutil      51. 73.101 / 51. 73.101
  
    libavcodec     54. 59.100 / 54. 59.100
  
    libavformat    54. 29.104 / 54. 29.104
  
    libavdevice    54.  2.101 / 54.  2.101
  
    libavfilter     3. 17.100 /  3. 17.100
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, matroska,webm, from '/home/maniaplanet/Videos/ManiaPlanet 2014-08-21 20-09-13-082.avi.output.mkv':
  
    Metadata:
  
      ISRC            : Video:RGB24 Audio0:Headset (2- Plantronics .Audio 655 DSP) Audio1:Headset (2- Plantronics .Audio 655 DSP)
  
      ENCODER         : Lavf55.37.100
  
    Duration: 01:49:48.47, start: 0.000000, bitrate: 3867 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p, 1280x1024, SAR 1:1 DAR 5:4, 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
  
      Stream #0:1: Audio: mp3, 48000 Hz, stereo, s16, 320 kb/s (default)
  
      Stream #0:2: Audio: mp3, 48000 Hz, stereo, s16, 320 kb/s (default)
  
  File '/var/www/files/output.mp4' already exists. Overwrite ? [y/N] y
  
  Input channel layouts overlap: output layout will be determined by the number of distinct input channels
  
  [libvo_aacenc @ 0x7ae800] Unable to set encoding parameters
  
  Output #0, mp4, to '/var/www/files/output.mp4':
  
    Metadata:
  
      ISRC            : Video:RGB24 Audio0:Headset (2- Plantronics .Audio 655 DSP) Audio1:Headset (2- Plantronics .Audio 655 DSP)
  
      ENCODER         : Lavf55.37.100
  
      Stream #0:0: Audio: aac, 48000 Hz, 4.0, s16, 256 kb/s
  
      Stream #0:1: Video: h264, yuv420p, 1280x1024 [SAR 1:1 DAR 5:4], q=2-31, 30 fps, 90k tbn, 1k tbc (default)
  
  Stream mapping:
  
    Stream #0:1 (mp3) -> amerge:in0
  
    Stream #0:2 (mp3) -> amerge:in1
  
    amerge -> Stream #0:0 (libvo_aacenc)
  
    Stream #0:0 -> #0:1 (copy)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  I think the important part is at the bottom :

  Stream mapping:
  
    Stream #0:1 (mp3) -> amerge:in0
  
    Stream #0:2 (mp3) -> amerge:in1
  
    amerge -> Stream #0:0 (libvo_aacenc)
  
    Stream #0:0 -> #0:1 (copy)

  It maps the video stream as the second stream and the audio gets first. How do i resolve this ? -map did not help. (Maybe I just used it wrong)

• ffmpeg -concat slowing down AAC audio files

  28 août 2014, par Marc

  I am concatenating six m4a files with this command

  ffmpeg -f concat -i audiofiles.txt -c copy all_audio_edited.m4a

  each file has a duration of 6 hours (24 in total) but the concatenation doesn’t work quite well : the first part of the file (the first m4a) is perfect, but all the others are slowed down, so the final duration is >26 hours

  What’s wrong ?

  Thanks

  Marcs-MacBook-Pro:Sof marc$ ffmpeg -report -f concat -i audiofiles.txt -c copy all_audio_edited.m4a
  
  ffmpeg started on 2014-08-28 at 23:35:06
  
  Report written to "ffmpeg-20140828-233506.log"
  
  ffmpeg version 2.3 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Aug 26 2014 17:59:15 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-openssl --enable-libopus --enable-frei0r --enable-libcaca --enable-libquvi --enable-libvidstab --enable-libx265 --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 '
  
    libavutil      52. 92.100 / 52. 92.100
  
    libavcodec     55. 69.100 / 55. 69.100
  
    libavformat    55. 48.100 / 55. 48.100
  
    libavdevice    55. 13.102 / 55. 13.102
  
    libavfilter     4. 11.100 /  4. 11.100
  
    libavresample   1.  3.  0 /  1.  3.  0
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 19.100 /  0. 19.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [concat @ 0x7fcb6c803400] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, concat, from 'audiofiles.txt':
  
    Duration: 00:00:00.00, start: 0.000000, bitrate: 279 kb/s
  
      Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 280 kb/s
  
  Output #0, ipod, to 'all_audio_edited.m4a':
  
    Metadata:
  
      encoder         : Lavf55.48.100
  
      Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 280 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  size= 3020597kB time=26:07:14.44 bitrate= 263.1kbits/s    
  
  video:0kB audio:3004946kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.520849%

• FFMPEG doesn't work with mp4 and stdout

  22 août 2014, par Max Grigoriev

  I need to add text to mp4 video. If I write result to file then everything is OK, but I want to read data from ffmpeg stream.

  I run command :

  ffmpeg -i sample.mp4 -filter_complex "drawtext='text=\"Sample Text\"':x=(w-text_w)/2:y=(h-text_h-line_h)/2:fontsize=40:fontcolor=white:fontfile=TimesNewRoman.ttf:enable='between(t,1,5)'"  -f mp4 -

  I received the following error :

  ffmpeg version 2.2.2-tessus Copyright (c) 2000-2014 the FFmpeg developers
  
    built on May  7 2014 23:17:42 with clang version 3.3 (tags/RELEASE_33/final)
  
    configuration: --cc=/opt/local/bin/clang-mp-3.3 --prefix=/Users/tessus/data/ext/ffmpeg/sw --as=yasm --extra-version=tessus --disable-shared --enable-static --disable-ffplay --enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-version3 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm --enable-libopus --enable-libmodplug --enable-fontconfig --enable-libfreetype --enable-libass --enable-libbluray --enable-filters --disable-indev=qtkit --enable-runtime-cpudetect
  
    libavutil      52. 66.100 / 52. 66.100
  
    libavcodec     55. 52.102 / 55. 52.102
  
    libavformat    55. 33.100 / 55. 33.100
  
    libavdevice    55. 10.100 / 55. 10.100
  
    libavfilter     4.  2.100 /  4.  2.100
  
    libswscale      2.  5.102 /  2.  5.102
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'a5732-480x320-clip01-sound.mp4':
  
    Metadata:
  
      major_brand     : M4V 
  
      minor_version   : 1
  
      compatible_brands: M4V mp42isom
  
  creation_time   : 2014-02-12 02:23:02
  
    Duration: 00:00:15.10, start: 0.000000, bitrate: 509 kb/s
  
  Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 480x320 [SAR 1:1 DAR 3:2], 457 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
  
  Metadata:
  
    creation_time   : 2014-02-12 02:23:02
  
    handler_name    : Mainconcept MP4 Video Media Handler
  
  Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 46 kb/s (default)
  
  Metadata:
  
    creation_time   : 2014-02-12 02:23:02
  
    handler_name    : Mainconcept MP4 Sound Media Handler
  
  [libx264 @ 0x10400d800] using SAR=1/1
  
  [libx264 @ 0x10400d800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x10400d800] profile High, level 2.1
  
  [libx264 @ 0x10400d800] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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
  
  [mp4 @ 0x10400d200] muxer does not support non seekable output
  
  Output #0, mp4, to 'pipe:':
  
    Metadata:
  
  major_brand     : M4V 
  
  minor_version   : 1
  
  compatible_brands: M4V mp42isom
  
  encoder         : Lavf55.33.100
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 480x320 [SAR 1:1 DAR 3:2], q=-1--1, 90k tbn, 29.97 tbc (default)
  
  Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 32000 Hz, stereo, s16, 128 kb/s (default)
  
  Metadata:
  
    creation_time   : 2014-02-12 02:23:02
  
    handler_name    : Mainconcept MP4 Sound Media Handler
  
  Stream mapping:
  
    Stream #0:0 (h264) -> drawtext (graph 0)
  
    drawtext (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
  
  Conversion failed!

  It seems the problem is related to mp4 and "muxer does not support non seekable output"

  Is there a solution how to make such text adding on the fly and return video as we have data and not to wait until all file is processed.

  Thanks