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• ffmpeg Join MP4 videos, error (audio) of vine.co

  26 novembre 2014, par user3537531

  I’ve tried everything bucar after searching and I have not managed to unite vine.co videos to upload to youtube. Sometimes youtube error notifies Encryption, sometimes the video is cut audio to half, and in other cases the audio does not match the video.

  things I’ve tried

  ---

  file '/path/to/1.mp4'
  
  file '/path/to/2.mp4'
  
  ffmpeg -f concat -i list.txt -c copy result.mp4

  ---

  ffmpeg -i concat:"1.mp4|2.mp4" -codec copy result.mp4

  ---

  ffmpeg -i "concat:1.mp4|2.mp4" -c copy result.mp4

  The video is created, but always happen any errors or youtube audio conversion error tells me.

  We are talking of joining between 300 and 1,000 videos of between 3 and 6 seconds.

  From what I’ve read all would have to have the same frame rate and the same resolution.

  I have also proven to mp4box and post on youtube gives me trouble conversion

  mp4box-cat 1.mp4 -cat 2.mp4 -new result.mp4

  And not more I can do, I hope you can help me to attach a lot of videos on console. A greeting and thanks.

• Problems accessing codecs with ggplot and gganimate

  19 décembre 2016, par noLongerRandom

  Using gganimate. Can’t figure out how to properly access functionality of ffmpeg, specifically I want to change the codec I’m using in the video file I’m outputting.

  # load packages
  
  library(ggplot)
  
  library(animation)
  
  library(gganimate)
  
  
  
  # Here's my data.frame
  
  myDf <- data.frame(
  
      year = c(1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014), 
  
      bottom50 = c(0.195, 0.191, 0.187, 0.192, 0.196, 0.205, 0.207, 0.210, 0.209, 0.204, 0.203, 0.204, 0.205, 0.203, 0.202, 0.200, 0.200, 0.201, 0.199, 0.195, 0.190, 0.183, 0.179, 0.179, 0.177, 0.172, 0.169, 0.169, 0.168, 0.166, 0.158, 0.159, 0.158, 0.154, 0.151, 0.148, 0.149, 0.148, 0.146, 0.149, 0.148, 0.145, 0.142, 0.138, 0.135, 0.137, 0.137, 0.136, 0.130, 0.127, 0.123, 0.127, 0.125), top1 = c(0.126, 0.127, 0.129, 0.128, 0.126, 0.123, 0.122, 0.115, 0.110, 0.111, 0.111, 0.109, 0.106, 0.105, 0.105, 0.107, 0.108, 0.111, 0.107, 0.110, 0.112, 0.115, 0.125, 0.125, 0.122, 0.133, 0.149, 0.145, 0.145, 0.139, 0.150, 0.146, 0.147, 0.153, 0.160, 0.166, 0.169, 0.177, 0.183, 0.173, 0.171, 0.172, 0.183, 0.194, 0.201, 0.199, 0.195, 0.185, 0.198, 0.196, 0.208, 0.196, 0.202)
  
  )
  
  
  
  #Basic plot
  
  p <- ggplot(myDf, aes(x = year, y = bottom50, frame = year)) + 
  
      geom_line(color = "dodgerblue") + 
  
      geom_line(aes(y = top1), color = "darkred")

  The non-animated version gets me what I want :

  

  And I get an animation version output to video with :

  gganimate(p, interval = .1, title_frame = FALSE, "income.mp4")

  That’s fine, but I want to change some the output parameters, specifically : alter the dimensions, the frame rate, and use a different codec.

  # change some of the options
  
  ani.options(ani.height = 1080, ani.width = 1920, 
  
              interval = 0.04166667, other.opts = "-vcodec qtrle -f mov")
  
  # re-animate
  
  gganimate(p, title_frame = FALSE, "income.mov")

  That gives me the following error :

  Error in animation_saver(saver, filename) : 
  
    Don't know how to save animation of type mov

  I’m using ’.mov’ as my file extension because I’m trying to change to the Animation codec (so it’s no longer a .mp4 wrapper). I’ve got ffmpeg installed, so this is probably a syntax issue. But the documentation isn’t very clear here ; gganimate doesn’t have any documentation on changing codecs (or outputting any video besides an mp4), and the animation package is light on specifics as well.

• ffmpeg : How can I send a H.265 encoded stream to wowza ?

  24 avril 2015, par Fuzz

  I managed to encode H.265 to an output file like this :

  ffmpeg -i test.m2ts -c:v libx265 -c:a copy output.mp4

  and I managed to stream a H.264 file to wowza like this :

  ffmpeg -re -i sample.mp4 -vcodec libx264 -vprofile default -vprofile baseline -r 24 -g 48 -vb 150000 -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 2 -f rtsp -muxdelay 0.1 rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream

  But I just cant seem to stream a H.265 to a rtsp stream.

  If I use the libx265 in the command above I get the error :

  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  Any hints would be greatly appreciated.

  Here is the console message with -loglevel verbose

  >ffmpeg -re -i sample.mp4 -vcodec libx265 -vprofile default -vprofile baseline -r 24 -g 48 -vb 150000 -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 2 -f rtsp -muxdelay 0.1 rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream -l
  
  oglevel verbose
  
  ffmpeg version N-69156-gff5b9a1c Copyright (c) 2000-2015 the FFmpeg developers
  
    built on Jan 20 2015 00:38:00 with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-
  
  libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --
  
  enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      54. 17.100 / 54. 17.100
  
    libavcodec     56. 20.100 / 56. 20.100
  
    libavformat    56. 19.100 / 56. 19.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5.  8.100 /  5.  8.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Routing option strict to both codec and muxer layer
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sample.mp4':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      creation_time   : 1970-01-01 00:00:00
  
      encoder         : Lavf52.73.0
  
    Duration: 00:09:56.46, start: 0.000000, bitrate: 524 kb/s
  
      Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 424x240 (432x240), 420 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : libx264
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 99 kb/s (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
  [graph 0 input from stream 0:0 @ 00000000050f6e60] w:424 h:240 pixfmt:yuv420p tb:1/24 fr:24/1 sar:0/1 sws_param:flags=2
  
  [graph 1 input from stream 0:1 @ 0000000002c38700] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
  
  [libx265 @ 0000000002c172a0] [Eval @ 000000000022aca0] Undefined constant or missing '(' in 'baseline'
  
  [libx265 @ 0000000002c172a0] Unable to parse option value "baseline"
  
  [libx265 @ 0000000002c172a0] Error setting option profile to value baseline.
  
  Output #0, rtsp, to 'rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      encoder         : Lavf52.73.0
  
      Stream #0:0(eng): Video: hevc, none, q=2-31, 128 kb/s, 24 fps (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : Lavc56.20.100 libx265
  
      Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : Lavc56.20.100 aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height