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• FFmpeg - Requested output format 'mpeg' is not a suitable output format

  14 mai 2015, par Jon G

  I am trying to use FFmpeg to convert a video from mp4 format to an mpeg, so that I can merge multiple videos. I have a custom build of FFmpeg where I control the configuration options :

  ffmpeg -y -i VID_20150514_171122_12085.mp4 -an -f mpeg VID_20150514_184208.mp4.0.mpg
  
  ffmpeg version git-2015-02-25-b0d3322 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.8 (GCC)
  
    configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --enable-pic --disable-shared --enable-static --cross-prefix=/home/jon/Development/android-ndk-r10d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --enable-cross-compile --sysroot=/home/jon/Development/android-ndk-r10d/platforms/android-9/arch-arm/ --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --disable-everything --enable-decoder=mpeg --enable-decoder=mpeg4 --enable-decoder=aac --enable-decoder=h264 --enable-decoder=libx264 --enable-encoder=libx264 --enable-decoder=mpegvideo --enable-decoder=mpeg1video --enable-decoder=mpeg2video --enable-encoder=mpeg --enable-encoder=mpeg4 --enable-encoder=aac --enable-encoder=h264 --enable-encoder=mpeg1video --enable-encoder=mpeg2video --enable-parser=aac --enable-parser=mpeg4video --enable-parser=ac3 --enable-parser=h261 --enable-parser=h264 --enable-parser=vc1 --enable-demuxer=mpegvideo --enable-demuxer=aac --enable-demuxer=m4v --enable-demuxer=mov --enable-demuxer=h264 --enable-demuxer=vc1 --enable-muxer=h264 --enable-muxer=mpeg2video --enable-muxer=mp4 --enable-muxer=mov --enable-protocols --enable-indev=v4l --enable-indev=v4l2 --enable-filter=aresample --enable-filter=scale --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-symver --enable-network --enable-libx264 --enable-zlib --enable-muxer=md5
  
    libavutil      54. 19.100 / 54. 19.100
  
    libavcodec     56. 26.100 / 56. 26.100
  
    libavformat    56. 23.105 / 56. 23.105
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.101 /  5. 11.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VID_20150514_171122_12085.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.23.105
  
    Duration: 00:00:09.79, start: 0.773229, bitrate: 2013 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2005 kb/s, 30.35 fps, 30.35 tbr, 18k tbn, 60.71 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  [NULL @ 0xb7520490] Requested output format 'mpeg' is not a suitable output format
  
  VID_20150514_184208.mp4.0.mpg: Invalid argument

  But I keep getting an error saying "Requested output format ’mpeg’ is not a suitable output format". The same command seems to work on my Ubuntu machine with a full build of FFmpeg. What am I missing ? I thought I had all the mpeg encoders/decoders enabled ... mpeg, mpegvideo, mpeg1video, mpeg2video.

• Download brightcove video

  17 mai 2015, par desert877

  So I have sucessfully downloaded flash videos on in the past but for some reason I am having issues with a local news report. The video I am trying to download is :

  http://www.kens5.com/story/news/2015/04/07/one-dead-after-shooting-at-north-side-auto-body-shop/25444855/

  When I check network sources I get the following output :

  http://kens-vh.akamaihd.net/z/video/25446645/25446645_,350,640,1000,2000,.mp4.csmil/3_5e4ebc852f616aa3_Seg1-Frag7?videoId=4159855028001&lineUpId=&pubId=3616287834001&playerId=3626703558001&affiliateId=&als=16.11,30,12.83,3,2176,13298,30,0,0,114,f,7.9,101.94,f,s,SCJIPJRDQHXW,3.4.0,114&hdcore=3.4.0

  I downloaded a tool recommend to me call ffmpeg and ran a command from a forum that said "Invalid data found when processing input". Unable to figure out issue there.

  Does any one know any scripts/code/tools/methods whatever that I can use to download this video ?

  Any help would be great.

• Stopping Referrer Spam

  13 mai 2015, par Piwik Core Team — Community

  In this blog post we explain what is Referrer spam, this new kind of spam that has recently appeared on the Internet. We also provide solutions to stop it and preserve the quality of your analytics data.

  What is Referrer Spam ?

  Referrer spam (also known as log spam or referrer bombing) is a kind of spamming aimed at web analytics tools. A spammer bot makes repeated web site requests using a fake referrer URL to the site the spammer wishes to advertise.

  Here is an example of referrer spam in action :

  

  Half of those referrers are spams, here are some well know spammers that you may have seen in your logs : buttons-for-you-website.com, best-seo-offer.com, semalt.com…

  The benefit for spammers is that their website will appear in analytics tools like Piwik or Google Analytics :

  • public analytics reports (or logs) will be indexed by search engines : links to the spammer’s website will improve its ranking
  • curious webmasters are likely to visit their referrers, thus bringing traffic to the spammer’s website

  How to deal with Referrer Spam ?

  Referrer spam is still new and analytics tools are all handling it differently.

  Referrer Spam in Piwik

  At Piwik we started working on mitigating Referrer spam more than a year ago. If you use Piwik and keep it up to date, you do not need to do anything.

  Referrer spammers are automatically excluded from your reports to keep your data clean and useful.

  New spammers are continuously detected and added to Piwik’s blacklist on each update. If you find a new spammer in your analytics data, you can even report it so that it is added to the Piwik’s open referrer blacklist and blocked for everyone.

  Referrer Spam in Google Analytics

  Google Analytics doesn’t offer any spam protection by default. It can however be configured manually using a custom Filter.

  To create a filter in Google Analytics go to the Admin section and click on All Filters. Create a new custom filter that excludes based on the Campaign Source field. In the Filter pattern enter the spammers domains you want to exclude (this is a regular expression) :

  

  If new spammers arise you will need to update this list. You can also use Piwik’s referrer blacklist to exclude all the spammers currently detected.

  Other Analytics Tools

  Many web analytics tools do not yet handle Referrer spam and when using these tools, you will often find a lot of spam data in your Referrer Websites analytics reports.

  If you use an analytics tool that does not exclude Referrer spam, we recommend to contact the vendor and ask them to implement a mechanism to remove these referrer spammers. As of today many analytics vendors still have not mitigated this issue.

  Public List of Referrer Spammers

  At Piwik with the help of our large community we have decided to tackle this growing spam issue. We have created a list of up to date referrer spammers that anyone can edit.

  The list is available in a simple text file on Github : github.com/piwik/referrer-spam-blacklist.

  The list is released under the Public Domain and anyone can use it within their applications to exclude referrer spammers.

  Many people have already contributed new spammers to the list. We invite you to use the list in your apps and websites and help us keep the list up to date !

  Let’s unite and fight the spammers together.

  Happy Analytics !