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• Make better marketing decisions with attribution modeling

  19 décembre 2017, par InnoCraft — Community, Plugins

  Do you suspect some traffic sources are not getting the rewards they deserve ? Do you want to know how much credit each of your marketing channel actually gets ?

  When you look at which referrers contribute the most to your goal conversions or purchases, Piwik shows you only the referrer of the last visit. However, in reality, a visitor often visits a website multiple times from different referrers before they convert a goal. Giving all credit to the referrer of the last visit ignores all other referrers that contributed to a conversion as well.

  You can now push your marketing analysis to the next level with attribution modeling and finally discover the true value of all your marketing channels. As a result, you will be able to shift your marketing efforts and spending accordingly to maximize your success and stop wasting resources. In marketing, studying this data is called attribution modeling.

  Get the true value of your referrers

  Attribution is a premium feature that you can easily purchase from the Piwik marketplace.

  Once installed, you will be able to :

  • identify valuable referrers that you did not see before
  • invest in potential new partners
  • attribute a new level of conversion
  • make this work very easily by filling just a couple of form information

  Identify valuable referrers that you did not see before

  You probably have hundreds or even thousands of different sources listed within the referrer reports. We also guess that you have the feeling that it is always the same referrers which are credited of conversions.
  Guess what, those data are probably biased or at least are not telling you the whole story.
  Why ? Because by default, Piwik only attributes all credit to the last referrer.

  

  It is likely that many non credited sources played a role in the conversion process as well as people often visit your website several times before converting and they may come from different referrers.

  This is exactly where attribution modeling comes into play. With attribution modeling, you can decide which touchpoint you want to study. For example, you can choose to give credit to all the referrers a single visitor came from each time the user visits your website, and not only look at the last one. Without this feature, chances are, that you have spent too much money and / or efforts on the wrong referrer channels in the past because many referrers that contributed to conversions were ignored. Based on the insights you get by applying different attribution models, you can make better decisions on where to shift your marketing spending and efforts.

  Invest in potential new partners

  Once you apply different attribution models, you will find out that you need to consider a new list of referrers which you before either over- or under-estimated in terms of how much they contributed to your conversions. You probably did not identify those sources before because Piwik shows only the last referrer before a conversion. But you can now also look at what these newly discovered referrers are saying about your company, looking for any advertising programs they may offer, getting in contact with the owner of the website, and more.

  Apply up to 6 different attribution models

  By default, Piwik is attributing the conversion to the last referrer only. With attribution modeling you can analyze 6 different models :

  • Last Interaction : the conversion is attributed to the last referrer, even if it is a direct access.
  • Last Non-Direct : the conversion is attributed to the last referrer, but not in the case of a direct access.
  • First Interaction : the conversion is attributed to the first referrer which brought you the visit.
  • Linear : whatever the number of referrers which brought you the conversion, they will all get the same value.
  • Position Based : first and last referrer will be attributed 40% each the conversion value, the remaining 60% is divided between the rest of the referrers.
  • Time Decay : this attribution model means that the closer to the date of the conversion is, the more your last referrers will get credit.

  Those attribution models will enable you to analyze all your referrers deeply and increase your conversions.

  Let’s look at an example where we are comparing two models : “last interaction” and “first interaction”. Our goal is to identify whether some referrers that we are currently considering as less important, are finally playing a serious role in the total amount of conversions :

  

  Comparing Last Interaction model to First Interaction model

  Here it is interesting to observe that the website www.hongkiat.com is bringing almost 90% conversion more with the first interaction model rather than the last one.

  As a result we can look at this website and take the following actions :

  • have a look at the message on this website
  • look at opportunities to change the message
  • look at opportunities to display extra marketing messages
  • get in contact with the owner to identify any other communication opportunities

  The Multi Channel Attribution report

  Attribution modeling in Piwik does not require you to add any tracking code. The only thing you need is to install the plugin and let the magic happen.
  Simple as pie is the word you should keep in mind for this feature. Once installed, you will find the report within the goal section, just above the goals you created :

  

  The Multi Attribution menu

  There you can select the attribution model you would like to apply or compare.

  Attribution modeling is not just about playing with a new report. It is above all an opportunity to increase the number of conversions by identifying referrers that you may have not recognized as valuable in the past. To grow your business, it is crucial to identify the most (and least) successful channels correctly so you can spend your time and money wisely.

  Learn more about Multi Channel Conversion Attribution

• Converting mp4 audio & video for JavaScript's MediaSource API

  10 janvier 2020, par Crayzzit

  So I have two files. frag_bunny.mp4 and raw.mp4 (you can download them in a tar on my Google drive). The frag_bunny.mp4 works perfectly when I use it with the JavaScript’s MediaSource API. But it’s not the case with raw.mp4, why is that ?

  Here’s the mediainfo of frag_bunny.mp4 :

  General
  
  Complete name                            : frag_bunny.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media / Version 2
  
  Codec ID                                 : mp42 (mp42/avc1/iso5)
  
  File size                                : 5.27 MiB
  
  Duration                                 : 1 min 0 s
  
  Overall bit rate                         : 734 kb/s
  
  
  
  Video
  
  ID                                       : 2
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : Baseline@L3
  
  Format settings                          : 2 Ref Frames
  
  Format settings, CABAC                   : No
  
  Format settings, ReFrames                : 2 frames
  
  Format settings, GOP                     : M=1, N=64
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 1 min 0 s
  
  Bit rate                                 : 613 kb/s
  
  Width                                    : 640 pixels
  
  Height                                   : 360 pixels
  
  Display aspect ratio                     : 16:9
  
  Frame rate mode                          : Variable
  
  Frame rate                               : 23.976 (23976/1000) FPS
  
  Minimum frame rate                       : 7.317 FPS
  
  Maximum frame rate                       : 24.000 FPS
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.111
  
  Stream size                              : 4.39 MiB (83%)
  
  Language                                 : English
  
  Color range                              : Limited
  
  Color primaries                          : BT.601 NTSC
  
  Transfer characteristics                 : BT.709
  
  Matrix coefficients                      : BT.601
  
  
  
  Audio
  
  ID                                       : 1
  
  Format                                   : AAC
  
  Format/Info                              : Advanced Audio Codec
  
  Format profile                           : LC
  
  Codec ID                                 : mp4a-40-2
  
  Duration                                 : 1 min 0 s
  
  Bit rate mode                            : Constant
  
  Bit rate                                 : 64.0 kb/s
  
  Channel(s)                               : 2 channels
  
  Channel positions                        : Front: L R
  
  Sampling rate                            : 22.05 kHz
  
  Frame rate                               : 21.533 FPS (1024 SPF)
  
  Compression mode                         : Lossy
  
  Stream size                              : 478 KiB (9%)
  
  Language                                 : English
  
  
  
  Other #1
  
  ID                                       : 3
  
  Type                                     : Hint
  
  Format                                   : RTP
  
  Codec ID                                 : rtp
  
  Duration                                 : 1 min 0 s
  
  Language                                 : English
  
  
  
  Other #2
  
  ID                                       : 4
  
  Type                                     : Hint
  
  Format                                   : RTP
  
  Codec ID                                 : rtp
  
  Duration                                 : 1 min 0 s
  
  Language                                 : English

  And same for raw.mp4 :

  General
  
  Complete name                            : raw.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media / Version 2
  
  Codec ID                                 : mp42 (isom/iso2/avc1/mp41)
  
  File size                                : 16.9 MiB
  
  Duration                                 : 3 min 32 s
  
  Overall bit rate                         : 668 kb/s
  
  Writing application                      : Lavf57.83.100
  
  
  
  Video
  
  ID                                       : 1
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : High@L3
  
  Format settings                          : CABAC / 4 Ref Frames
  
  Format settings, CABAC                   : Yes
  
  Format settings, ReFrames                : 4 frames
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 3 min 32 s
  
  Bit rate                                 : 532 kb/s
  
  Width                                    : 640 pixels
  
  Height                                   : 360 pixels
  
  Display aspect ratio                     : 16:9
  
  Frame rate mode                          : Constant
  
  Frame rate                               : 25.000 FPS
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.092
  
  Stream size                              : 13.4 MiB (80%)
  
  Writing library                          : x264 core 152 r2854 e9a5903
  
  Encoding settings                        : 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
  
  
  
  Audio
  
  ID                                       : 2
  
  Format                                   : AAC
  
  Format/Info                              : Advanced Audio Codec
  
  Format profile                           : LC
  
  Codec ID                                 : mp4a-40-2
  
  Duration                                 : 3 min 32 s
  
  Bit rate mode                            : Constant
  
  Bit rate                                 : 132 kb/s
  
  Channel(s)                               : 2 channels
  
  Channel positions                        : Front: L R
  
  Sampling rate                            : 44.1 kHz
  
  Frame rate                               : 43.066 FPS (1024 SPF)
  
  Compression mode                         : Lossy
  
  Stream size                              : 3.30 MiB (20%)
  
  Default                                  : Yes
  
  Alternate group                          : 1

  And in my js, I’m using this codec : ...addSourceBuffer('video/mp4; codecs="avc1.42c00d,mp4a.40.2"')

• FFmpeg to transfer from bad media

  31 décembre 2017, par TheSavo

  I have an SDcard that has two videos recorded from an old phone. The media is bad and I have already run SpinRite and chkdsk, to fix the errors. The files still fail to copy completely.

  I can play some portion of the files in VLC player. It plays about as far as File copy and TeraCopy before the copy job fails.
  They and MP4 files. I would like to use ffmpeg to transfer the portion of the video that will play out. is -i the best parameter ?

  ffmpeg -i H:\badfile.mp4 e:\portion.mp4

  Here is the output from mediainfo if that helps

  Complete name                            : H:\DCIM\badfile.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/3gp4)
File size                                : 422 MiB
Duration                                 : 3 min 46 s
Overall bit rate                         : 15.6 Mb/s
Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 1 Ref Frames
Format settings, CABAC                   : Yes
Format settings, RefFrames               : 1 frame
Format settings, GOP                     : M=1, N=61
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 3 min 45 s
Bit rate                                 : 15.5 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 19.469 FPS
Minimum frame rate                       : 14.085 FPS
Maximum frame rate                       : 30.303 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.385
Stream size                              : 418 MiB (99%)
Title                                    : VideoHandle
Language                                 : English
Encoded date                             : UTC 2013-09-17 13:18:06
Tagged date                              : UTC 2013-09-17 13:18:06
mdhd_Duration                            : 225892

  Audio
  ID : 2
  Format : AAC
  Format/Info : Advanced Audio Codec
  Format profile : LC
  Codec ID : mp4a-40-2
  Duration : 3 min 46 s
  Bit rate mode : Constant
  Bit rate : 128 kb/s
  Nominal bit rate : 96.0 kb/s
  Channel(s) : 2 channels
  Channel positions : Front : L R
  Sampling rate : 44.1 kHz
  Frame rate : 43.066 FPS (1024 SPF)
  Compression mode : Lossy
  Stream size : 3.46 MiB (1%)
  Title : SoundHandle
  Language : English
  Encoded date : UTC 2013-09-17 13:18:06
  Tagged date : UTC 2013-09-17 13:18:06