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• I got a green overlay in my video when using multiply blend mode in ffmpeg [on hold]

  30 avril 2014, par GJG

  i´m trying to blend two videos with the multiply blend mode. But I got a green overlay in the resulting video.

  This is a image where are one frame of each input video and one frame of the resulting video
  Composition

  I got this script, this is extracted from a part of my code :

  #!/bin/bash
  
  ffmpeg -y -i video_top.avi -i video_background.mp4 -filter_complex "blend=all_mode=multiply" -f mp4 -vcodec libx264 out.mp4

  This is the ffmpeg output :

  built on Mar 20 2014 14:51:45 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
  
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3
  
  libavutil      52. 67.100 / 52. 67.100
  
  libavcodec     55. 52.102 / 55. 52.102
  
  libavformat    55. 34.101 / 55. 34.101
  
  libavdevice    55. 11.100 / 55. 11.100
  
  libavfilter     4.  3.100 /  4.  3.100
  
  libswscale      2.  5.102 /  2.  5.102
  
  libswresample   0. 18.100 /  0. 18.100
  
  libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, avi, from 'video_top.avi':
  
  Metadata:
  
  encoder         : Lavf54.29.104
  
  Duration: 00:00:10.72, start: 0.000000, bitrate: 688 kb/s
  
  Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p, 704x576 [SAR 1:1 DAR 11:9], 682 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'video_background.mp4':
  
  Metadata:
  
  major_brand     : mp42
  
  minor_version   : 0
  
  compatible_brands: mp42mp41
  
  creation_time   : 2014-04-29 12:51:17
  
  Duration: 00:00:08.90, start: 0.033333, bitrate: 3417 kb/s
  
  Stream #1:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 704x576 [SAR 1:1 DAR 11:9], 3408 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
  
  Metadata:
  
    creation_time   : 2014-04-29 12:51:17
  
    handler_name    : ?Mainconcept Video Media Handler
  
  [libx264 @ 0x2e42660] using SAR=1/1
  
  [libx264 @ 0x2e42660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x2e42660] profile High, level 3.0
  
  [libx264 @ 0x2e42660] 264 - core 142 r2 d6b4e63 - 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
  
  Output #0, mp4, to 'out.mp4':
  
  Metadata:
  
  encoder         : Lavf55.34.101
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 704x576 [SAR 1:1 DAR 11:9], q=-1--1, 12800 tbn, 25 tbc (default)
  
  Stream mapping:
  
  Stream #0:0 (h264) -> blend:top
  
  Stream #1:0 (h264) -> blend:bottom
  
  blend -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  frame=  268 fps=121 q=-1.0 Lsize=     732kB time=00:00:10.64 bitrate= 563.2kbits/s
  
  video:728kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.539149%
  
  [libx264 @ 0x2e42660] frame I:2     Avg QP:17.96  size: 35789
  
  [libx264 @ 0x2e42660] frame P:77    Avg QP:21.68  size:  5552
  
  [libx264 @ 0x2e42660] frame B:189   Avg QP:24.79  size:  1298
  
  [libx264 @ 0x2e42660] consecutive B-frames:  1.1% 11.2% 10.1% 77.6%
  
  [libx264 @ 0x2e42660] mb I  I16..4: 30.7% 36.5% 32.7%
  
  [libx264 @ 0x2e42660] mb P  I16..4:  3.0%  2.6%  0.4%  P16..4: 41.3% 14.4%  6.6%  0.0%  0.0%    skip:31.7%
  
  [libx264 @ 0x2e42660] mb B  I16..4:  0.2%  0.1%  0.0%  B16..8: 43.8%  2.8%  0.3%  direct: 0.2%  skip:52.5%  L0:42.2% L1:56.1% BI: 1.7%
  
  [libx264 @ 0x2e42660] 8x8 transform intra:40.7% inter:79.1%
  
  [libx264 @ 0x2e42660] coded y,uvDC,uvAC intra: 48.9% 29.0% 8.3% inter: 7.1% 4.5% 0.1%
  
  [libx264 @ 0x2e42660] i16 v,h,dc,p: 23% 19% 33% 26%
  
  [libx264 @ 0x2e42660] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 15% 45%  3%  3%  3%  5%  3%  6%
  
  [libx264 @ 0x2e42660] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 23% 19%  4%  3%  3%  7%  2%  7%
  
  [libx264 @ 0x2e42660] i8c dc,h,v,p: 67% 15% 16%  1%
  
  [libx264 @ 0x2e42660] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x2e42660] ref P L0: 67.4% 10.1% 17.0%  5.6%
  
  [libx264 @ 0x2e42660] ref B L0: 91.6%  7.3%  1.1%
  
  [libx264 @ 0x2e42660] ref B L1: 94.9%  5.1%
  
  [libx264 @ 0x2e42660] kb/s:555.48

  I don’t know what is wrong, and using others blend modes got others ridiculous results, like having a pink overlay in the video.

  Suggestions will be well appreciated, thanks very much.

• Install ffmpeg on elastic beanstalk using ebextensions config

  18 mai 2017, par user3581244

  I’m attempting to install an up to date version of ffmpeg on an elastic beanstalk instance on amazon servers. I’ve created my config file and added these container_commands :

      container_commands:
  
          01-ffmpeg:
  
              command: wget -O/usr/local/bin/ffmpeg http://ffmpeg.gusari.org/static/64bit/ffmpeg.static.64bit.2014-03-05.tar.gz
  
              leader_only: false
  
          02-ffmpeg:
  
              command: tar -xzf /usr/local/bin/ffmpeg
  
              leader_only: false
  
          03-ffmpeg:
  
              command: ln -s /usr/local/bin/ffmpeg /usr/bin/ffmpeg
  
              leader_only: false

  Command 01 and 03 seems to work perfectly but 02 doesn’t seem to work so ffmpeg doesn’t unzip. Any ideas what the issue might be ?

  Thanks,
  Helen

• Node.js Stream Mp3 to http without having to save file

  21 août 2016, par user2758113

  I am trying to stream just audio from a youtube link straight to http with node.js.

  My code looks like this, I am using express 4.0.

  var express = require('express');
  
  var router = express.Router();
  
  var ytdl = require('ytdl');
  
  var ffmpeg = require('fluent-ffmpeg');
  
  var fs = require('fs');
  
  
  
  router.get('/', function(req, res) {
  
  
  
    var url = 'https://www.youtube.com/watch?v=GgcHlZsOgQo';
  
    var video = ytdl(url)
  
  
  
    res.set({
  
        "Content-Type": "audio/mpeg"
  
    })
  
  
  
    new ffmpeg({source: video})
  
        .toFormat('mp3')
  
        .writeToStream(res, function(data, err) {
  
          if (err) console.log(err)
  
        })
  
  
  
  });
  
  
  
  module.exports = router;

  Now, I’m able to stream the video’s audio to the response if I save the file then pipe it to the response, but I’d rather try to figure out some way to go from downloading to ffmpeg to response.

  Not sure if this is possible. The main goal is to keep it as light weight as possible, and not have to read from files.

  I’ve seen this code which is essentially what I’d like to do minus the saving to a file part.