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• H.264 to DNxHR 444 issue. Colors are not transcoded correctly (HDR project). Note : issue not solved yet

  22 janvier 2020, par Raulo1985

  I’m having an issue transcoding a H.264 UHD HDR file to a DNxHR file in a mxf container with FFmpeg. The issue is that both files don’t look the same at all, the colors look washed out on the DNxHR video, and I tried to make the transcoding as lossless as possible (DNxHR 444 flavor). The original file is a movie I ripped a while ago, H.264, UHD, HDR, in a mkv container.

  My goal : to create an almost lossless DNxHR file to use it as source file in Adobe Premiere Pro, and use another DNxHR file with less quality as proxy for editing. I wanted to do it that way and not use the original H.264 as the source file because it’s out of sync with the proxy file (I mean, when I toggle the proxy icon on and off, you can tell that there’s a short delay between them, which defeats all purposes for editing). My guess is that it may be because H.264 is compressed and DNxHR isn’t, and since I edit making a lot of fast cuts, I need both the source file and the proxy file to be as synced as possible. When the source file and the proxy file are both DNxHR, no matter the flavor, they are perfectly synced. I don’t want to go with Prores for the proxies, because the sync problem is a lot worse (several seconds of delay between files), maybe because it’s a VBR codec and my original file and DNxHR are CBR (for the record, I always prefer CBR).

  Well, the thing is that when I import the original H.264 file to Premiere Pro, use a DNxHR proxy, edit a little, and export it directly from the original file (H.264 10 bits, with all the settings required for HDR output enabled) the colors look as they should. When I do the same with the high quality DNxHR as source file, with the exact same export settings, the colors look washed out. The same with any DNxHR flavor.

  Then I opened both files (original H.264 and high quality DNxHR transcoded from the H.264 one) with VLC, and I also can tell that the mxf file looks washed out and the H.264 file doesn’t. So it’s not an export issue on Premiere’ side, it’s something that has to do with the original transcoding.

  I understand that DNxHR 444 is as lossless as you can get with that codec, preserving all the HDR required data, and I believe that the mfx container has some advantages over MOV, which is the other container that supports DNxHD/DNxHR. So I don’t know what’s happening really.

  The command I used was :

  ffmpeg -channel_layout 63 -i input.mkv -map 0:0 -c:v dnxhd -vf "scale=in_range=limited:out_range=full" -color_range 2 -profile:v dnxhr_444 -pix_fmt yuv444p10le -acodec pcm_s24le -ar 48000 -ac 6 -channel_layout 63 -map 0:2 -hide_banner output.mxf

  Like I said, after the transcoding, both video files look a lot different from each other, color wise. And after using them in Premiere and exporting with the exact same settings, the output files suffer from the same difference.

  Mediainfo shows the expected data for both files :
   10 bits, main 10, level 5, 4:2:0, CBR, BT.2020 for the original h.264 file.
   10 bits, 4:4:4, CBR for the DNxHR 444 file.

  One thing I noticed in Mediainfo is that both have YUV as color space, but the DNxHR 444 video has an extra field that says ColorSpace_Original : RGB. Honestly, I don’t know what that means, since the original is YUV. Color range is fine, from 0 to 1023 (and chroma range 1023). The other thing is that it says "limited" on the color range field of the H.264 file, but I’ve read that that could be a bug or missinterpretation of the file by Mediainfo.

  Well, that’s it, any help would be appreciated. I’d really like to edit with DNxHR 444 as source file and DNxHR LB for the proxies, so I can edit in a fast pace and without sync issues, but the color is just not acceptable. And I do understand that I’m adding an extra transcoding step (from original to DNxHR), but the sync issue between the original and the DNxHR proxies, even though it may be a delay of a fraction of a second, makes my workflow a lot harder since I’ll have to export many times to see if the cuts are made exactly where I want them to be. Not ideal by any means. And Prores is not an option apparently, the sync issue is a lot worse. For me, it all comes down to being able to get a DNxHR 444 file that looks, well, as close to lossless as it can be, and that goal obviously involves the colors.

  Thanks in advance.

  PS : file size is not an issue for me, so having an entire UHD HDR movie transcoded to DNxHR 444 is not a problem.

  PS2 : I tried with a different chroma subsampling (like DNxHR HQX 10 bits, which is 4:2:2), same result. Haven´t tried with 8 bits yet, but I don’t see the point since this is a HDR project.

  UPDATE :

  I tried to transcode from the H.264 source file to a DNxHR video file in a MXF container using Adobe Media Encoder instead of FFmpeg, and the colors are not transcoded correctly again, but this time they seem to be over saturated instead of washed out. Adobe Media Encoder doesn’t give much room for tweaking, but I made sure to select 444 10 bits profile, same resolution (UHD), same frame rate and render with maximum quality and maximum bit depth. FFprobe output of the resulting file again shows BT709 as the color space (the same thing happens with the output file after transcoding using FFmpeg). Seems to be something not related to FFmpeg, apparently. Any ideas ? It’s like there’s no way I can transcode and retain the colors correctly from H.264 to DNxHR, even using its most high quality flavor and correct command settings (at least they look ok to me). How can I post this so maybe developers or people with lots of experience here can give us a clue to what’s happening ? Thanks.

  PS : More potentially useful info on the comments below.

  EXTRA INFO :

  1) FFprobe output of the MXF DNxHR file (this one is 4:2:2, the only difference with the command used compared to the one stated on the OP is -pix_fmt yuv444p10le being -pix_fmt yuv422p10le) :

    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  [mxf @ 000001f4d17fbac0] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, mxf, from 'Interstellar_Master_DNxHR_444_UHD_422_PCM24_5.1.mxf':
  
    Metadata:
  
      operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
  
      uid             : adab4424-2f25-4dc7-92ff-29bd000c0000
  
      generation_uid  : adab4424-2f25-4dc7-92ff-29bd000c0001
  
      company_name    : FFmpeg
  
      product_name    : OP1a Muxer
  
      product_version : 58.29.100
  
      product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
  
      material_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9300
  
      timecode        : 00:00:00:00
  
    Duration: 02:49:03.97, start: 0.000000, bitrate: 1404833 kb/s
  
      Stream #0:0: Video: dnxhd (DNXHR 444), yuv444p10le(bt709/unknown/unknown, progressive), 3840x2160, SAR 1:1 DAR 16:9, 23.98 tbr, 23.98 tbn, 23.98 tbc
  
      Metadata:
  
        file_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9301
  
      Stream #0:1: Audio: pcm_s24le, 48000 Hz, 6 channels, s32 (24 bit), 6912 kb/s
  
      Metadata:
  
        file_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9301

  2) FFprobe output of the MP4 H.264 source file (this one is 4:2:0, 10 bits, HDR) :

      Stream #0:0(eng): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 15584 kb/s, 23.98 fps, 23.98 tbr, 16k tbn, 23.98 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
      Side data:
  
        audio service type: main
  
      Stream #0:2(eng): Data: bin_data (text / 0x74786574)
  
      Metadata:
  
        handler_name    : SubtitleHandler
  
  Unsupported codec with id 100359 for input stream 2

• How to comvert MOV to MP4 with metadata [closed]

  11 janvier 2020, par Nadav Rosenberg

  I’m trying to convert mov videos from iphone to mp4 videos but I want to save the metadata.
  I had tried some options but ffmpeg for android seems the best.

  Does any one have some kind of a template that I can just implement it ?
  I don’t have a clue how to write in ffmpeg ..

  [screenshot from the app][1]

  [another screenshot from the app][2]

  log (the input is different then in the screenshot) :

  ffmpeg -y -i "/storage/9C33-6BBD/DCIM/עינב/IMG_5267.MOV" -c:v libx265 -q:v 5 -c:a aac -ab 128k -ar 44100 "/storage/emulated/0/FFMPEG/IMG_5267.mp4"
  
  
  
  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 4.9.x (GCC) 20150123 (prerelease)
  
    configuration: --enable-version3 --enable-gpl --enable-nonfree --disable-indev=v4l2 --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libopus --enable-libfdk-aac --enable-libfreetype --enable-libass --enable-libfribidi --enable-fontconfig --enable-pthreads --enable-libxvid --enable-filters --enable-openssl --enable-librtmp --disable-protocol='udp,udplite' --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libvo-amrwbenc --enable-libspeex --enable-libsoxr --enable-libwavpack --enable-libwebp --enable-libxml2 --enable-libopenh264 --enable-mediacodec --enable-jni --prefix=/home/silentlexx/AndroidstudioProjects/ffmpeg/ffmpeg/build/arm64-api21-r13b --sysroot=/home/silentlexx/Android/android-ndk-r13b/platforms/android-21/arch-arm64 --arch=arm64 --disable-shared --enable-static --enable-pic --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffnvcodec --disable-avdevice --disable-debug --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-symver --cross-prefix=/home/silentlexx/Android/android-ndk-r13b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- --target-os=android --enable-cross-compile --pkg-config-flags=--static --extra-libs='-lgnustl_static -lm -lpng -l:libz.so -lpthread' --enable-asm --enable-neon --enable-libxavs2 --disable-runtime-cpudetect --enable-small
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/9C33-6BBD/DCIM/עינב/IMG_5267.MOV':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      creation_time   : 2020-01-04T10:43:12.000000Z
  
      com.apple.quicktime.make: Apple
  
      com.apple.quicktime.model: iPhone 8 Plus
  
      com.apple.quicktime.software: 12.4.1
  
      com.apple.quicktime.creationdate: 2020-01-03T22:09:55+0200
  
      com.apple.photos.originating.signature: AXIrrckzUSuTNLamJ909jOgUZ8Mr
  
    Duration: 00:00:17.40, start: 0.000000, bitrate: 17343 kb/s
  
      Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 16511 kb/s, 30.01 fps, 30 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Video
  
        encoder         : H.264
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 101 kb/s (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Audio
  
      Stream #0:2(und): Data: none (mebx / 0x7862656D), 33 kb/s (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Metadata
  
      Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Metadata
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  x265 [info]: HEVC encoder version 3.1×de920e0a3183
  
  x265 [info]: build info [Linux][GCC 4.9.0][32 bit][noasm] 8bit
  
  x265 [info]: using cpu capabilities: none!
  
  x265 [info]: Main profile, Level-4 (Main tier)
  
  x265 [info]: Thread pool created using 8 threads
  
  x265 [info]: Slices                              : 1
  
  x265 [info]: frame threads / pool features       : 3 / wpp(17 rows)
  
  x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
  
  x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
  
  x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 3
  
  x265 [info]: Keyframe min / max / scenecut / bias: 25 / 250 / 40 / 5.00
  
  x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
  
  x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
  
  x265 [info]: References / ref-limit  cu / depth  : 3 / off / on
  
  x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
  
  x265 [info]: Rate Control / qCompress            : CRF-28.0 / 0.60
  
  x265 [info]: tools: rd=3 psy-rd=2.00 early-skip rskip signhide tmvp b-intra
  
  x265 [info]: tools: strong-intra-smoothing lslices=6 deblock sao
  
  Output #0, mp4, to '/storage/emulated/0/FFMPEG/IMG_5267.mp4':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      com.apple.photos.originating.signature: AXIrrckzUSuTNLamJ909jOgUZ8Mr
  
      com.apple.quicktime.make: Apple
  
      com.apple.quicktime.model: iPhone 8 Plus
  
      com.apple.quicktime.software: 12.4.1
  
      com.apple.quicktime.creationdate: 2020-01-03T22:09:55+0200
  
      encoder         : Lavf58.29.100
  
      Stream #0:0(und): Video: hevc (libx265) (hev1 / 0x31766568), yuv420p, 1920x1080, q=2-31, 30 fps, 15360 tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Video
  
        encoder         : Lavc58.54.100 libx265
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2020-01-04T10:43:12.000000Z
  
        handler_name    : Core Media Audio
  
        encoder         : Lavc58.54.100 aac
  
  frame=   27 fps= 13 q=0.0 size=       0kB time=00:00:02.08 bitrate=   0.2kbits/s speed=1.02x    
  
  frame=   30 fps=9.1 q=-0.0 size=       0kB time=00:00:02.18 bitrate=   0.2kbits/s speed=0.665x    
  
  frame=   31 fps=8.1 q=-0.0 size=       0kB time=00:00:02.22 bitrate=   0.2kbits/s speed=0.581x    
  
  frame=   32 fps=7.3 q=-0.0 size=       0kB time=00:00:02.25 bitrate=   0.2kbits/s speed=0.511x    
  
  frame=   33 fps=5.9 q=-0.0 size=       0kB time=00:00:02.29 bitrate=   0.2kbits/s speed=0.409x    
  
  frame=   36 fps=5.4 q=-0.0 size=       0kB time=00:00:02.39 bitrate=   0.1kbits/s speed=0.359x    
  
  frame=   37 fps=5.0 q=-0.0 size=       0kB time=00:00:02.41 bitrate=   0.1kbits/s speed=0.324x    
  
  frame=   40 fps=4.5 q=-0.0 size=       0kB time=00:00:02.53 bitrate=   0.1kbits/s speed=0.287x    
  
  frame=   43 fps=4.3 q=-0.0 size=       0kB time=00:00:02.62 bitrate=   0.1kbits/s speed=0.265x    
  
  frame=   44 fps=4.1 q=-0.0 size=       0kB time=00:00:02.64 bitrate=   0.1kbits/s speed=0.248x    
  
  frame=   45 fps=3.9 q=-0.0 size=       0kB time=00:00:02.69 bitrate=   0.1kbits/s speed=0.231x    
  
  frame=   48 fps=3.7 q=-0.0 size=       0kB time=00:00:02.78 bitrate=   0.1kbits/s speed=0.217x    
  
  frame=   50 fps=3.7 q=-0.0 size=       0kB time=00:00:02.85 bitrate=   0.1kbits/s speed=0.214x    
  
  frame=   51 fps=3.4 q=-0.0 size=       0kB time=00:00:02.87 bitrate=   0.1kbits/s speed=0.195x    
  
  frame=   54 fps=3.2 q=-0.0 size=     256kB time=00:00:02.99 bitrate= 700.2kbits/s speed=0.18x    
  
  frame=   57 fps=3.2 q=-0.0 size=     256kB time=00:00:03.08 bitrate= 679.2kbits/s speed=0.174x    
  
  frame=   58 fps=3.1 q=-0.0 size=     256kB time=00:00:03.11 bitrate= 674.1kbits/s speed=0.169x    
  
  frame=   59 fps=3.1 q=-0.0 size=     256kB time=00:00:03.15 bitrate= 664.2kbits/s speed=0.165x    
  
  frame=   61 fps=3.0 q=-0.0 size=     256kB time=00:00:03.22 bitrate= 649.9kbits/s speed=0.161x    
  
  frame=   62 fps=3.0 q=-0.0 size=     256kB time=00:00:03.25 bitrate= 645.2kbits/s speed=0.157x    
  
  frame=   63 fps=2.9 q=-0.0 size=     256kB time=00:00:03.29 bitrate= 636.1kbits/s speed=0.152x    
  
  frame=   65 fps=2.9 q=-0.0 size=     256kB time=00:00:03.34 bitrate= 627.3kbits/s speed=0.149x    
  
  frame=   66 fps=2.9 q=-0.0 size=     256kB time=00:00:03.39 bitrate= 618.7kbits/s speed=0.147x    
  
  frame=   68 fps=2.9 q=-0.0 size=     256kB time=00:00:03.45 bitrate= 606.3kbits/s speed=0.146x    
  
  frame=   69 fps=2.8 q=-0.0 size=     256kB time=00:00:03.48 bitrate= 602.2kbits/s speed=0.142x    
  
  frame=   70 fps=2.8 q=-0.0 size=     256kB time=00:00:03.52 bitrate= 594.3kbits/s speed=0.14x    
  
  frame=   72 fps=2.8 q=-0.0 size=     256kB time=00:00:03.59 bitrate= 582.8kbits/s speed=0.14x    
  
  frame=   73 fps=2.8 q=-0.0 size=     256kB time=00:00:03.62 bitrate= 579.1kbits/s speed=0.136x    
  
  frame=   74 fps=2.7 q=-0.0 size=     256kB time=00:00:03.64 bitrate= 575.4kbits/s speed=0.134x    
  
  frame=   76 fps=2.7 q=-0.0 size=     256kB time=00:00:03.71 bitrate= 564.6kbits/s speed=0.132x    
  
  frame=   77 fps=2.7 q=-0.0 size=     256kB time=00:00:03.76 bitrate= 557.6kbits/s speed=0.13x    
  
  frame=   79 fps=2.7 q=-0.0 size=     256kB time=00:00:03.83 bitrate= 547.5kbits/s speed=0.131x    
  
  frame=   80 fps=2.7 q=-0.0 size=     512kB time=00:00:03.85 bitrate=1088.2kbits/s speed=0.129x    
  
  frame=   82 fps=2.6 q=-0.0 size=     512kB time=00:00:03.92 bitrate=1068.9kbits/s speed=0.127x    
  
  frame=   83 fps=2.6 q=-0.0 size=     512kB time=00:00:03.94 bitrate=1062.6kbits/s speed=0.125x    
  
  frame=   84 fps=2.6 q=-0.0 size=     512kB time=00:00:03.99 bitrate=1050.3kbits/s speed=0.124x    
  
  frame=   87 fps=2.6 q=-0.0 size=     512kB time=00:00:04.08 bitrate=1026.4kbits/s speed=0.122x    
  
  frame=   89 fps=2.6 q=-0.0 size=     512kB time=00:00:04.15 bitrate=1009.2kbits/s speed=0.12x    
  
  frame=   90 fps=2.6 q=-0.0 size=     512kB time=00:00:04.17 bitrate=1003.6kbits/s speed=0.119x    
  
  frame=   92 fps=2.6 q=-0.0 size=     512kB time=00:00:04.24 bitrate= 987.2kbits/s speed=0.119x    
  
  frame=   93 fps=2.5 q=-0.0 size=     512kB time=00:00:04.29 bitrate= 976.5kbits/s speed=0.118x    
  
  frame=   94 fps=2.5 q=-0.0 size=     512kB time=00:00:04.31 bitrate= 971.2kbits/s speed=0.116x    
  
  frame=   96 fps=2.5 q=-0.0 size=     512kB time=00:00:04.38 bitrate= 955.8kbits/s speed=0.116x    
  
  frame=   97 fps=2.5 q=-0.0 size=     512kB time=00:00:04.41 bitrate= 950.8kbits/s speed=0.115x    
  
  frame=  100 fps=2.5 q=-0.0 size=     512kB time=00:00:04.52 bitrate= 926.4kbits/s speed=0.113x    
  
  frame=  101 fps=2.5 q=-0.0 size=     512kB time=00:00:04.55 bitrate= 921.7kbits/s speed=0.111x    
  
  frame=  103 fps=2.5 q=-0.0 size=     512kB time=00:00:04.62 bitrate= 907.8kbits/s speed=0.112x    
  
  frame=  104 fps=2.5 q=-0.0 size=     512kB time=00:00:04.64 bitrate= 903.2kbits/s speed=0.11x    
  
  frame=  105 fps=2.5 q=-0.0 size=     512kB time=00:00:04.69 bitrate= 894.3kbits/s speed=0.11x    
  
  frame=  106 fps=2.4 q=-0.0 size=     512kB time=00:00:04.71 bitrate= 889.9kbits/s speed=0.109x    
  
  frame=  107 fps=2.4 q=-0.0 size=     512kB time=00:00:04.76 bitrate= 881.2kbits/s speed=0.108x    
  
  frame=  108 fps=2.4 q=-0.0 size=     512kB time=00:00:04.78 bitrate= 876.9kbits/s speed=0.105x    
  
  frame=  111 fps=2.4 q=-0.0 size=     768kB time=00:00:04.89 bitrate=1284.2kbits/s speed=0.105x    
  
  frame=  112 fps=2.4 q=-0.0 size=     768kB time=00:00:04.92 bitrate=1278.1kbits/s speed=0.104x    
  
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  frame=  116 fps=2.4 q=-0.0 size=     768kB time=00:00:05.06 bitrate=1243.0kbits/s speed=0.103x    
  
  frame=  119 fps=2.4 q=-0.0 size=     768kB time=00:00:05.15 bitrate=1220.6kbits/s speed=0.102x    
  
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  frame=  230 fps=2.2 q=-0.0 size=    1536kB time=00:00:08.84 bitrate=1422.4kbits/s speed=0.0842x    
  
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  frame=  233 fps=2.2 q=-0.0 size=    1536kB time=00:00:08.96 bitrate=1403.9kbits/s speed=0.0834x    
  
  frame=  234 fps=2.2 q=-0.0 size=    1536kB time=00:00:08.98 bitrate=1400.3kbits/s speed=0.083x    
  
  frame=  236 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.05 bitrate=1389.5kbits/s speed=0.0832x    
  
  frame=  237 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.07 bitrate=1386.0kbits/s speed=0.083x    
  
  frame=  240 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.19 bitrate=1368.5kbits/s speed=0.083x    
  
  frame=  241 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.21 bitrate=1365.0kbits/s speed=0.0827x    
  
  frame=  242 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.26 bitrate=1358.2kbits/s speed=0.0826x    
  
  frame=  244 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.31 bitrate=1351.4kbits/s speed=0.0825x    
  
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  frame=  247 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.42 bitrate=1334.8kbits/s speed=0.0825x    
  
  frame=  248 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.45 bitrate=1331.5kbits/s speed=0.0823x    
  
  frame=  249 fps=2.2 q=-0.0 size=    1536kB time=00:00:09.49 bitrate=1325.0kbits/s speed=0.0823x    
  
  frame=  252 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.58 bitrate=1530.8kbits/s speed=0.0823x    
  
  frame=  253 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.61 bitrate=1527.1kbits/s speed=0.082x    
  
  frame=  256 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.72 bitrate=1508.9kbits/s speed=0.0822x    
  
  frame=  257 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.75 bitrate=1505.3kbits/s speed=0.0819x    
  
  frame=  258 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.77 bitrate=1501.7kbits/s speed=0.0818x    
  
  frame=  260 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.84 bitrate=1491.1kbits/s speed=0.0819x    
  
  frame=  261 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.89 bitrate=1484.1kbits/s speed=0.0818x    
  
  frame=  263 fps=2.2 q=-0.0 size=    1792kB time=00:00:09.96 bitrate=1473.7kbits/s speed=0.0819x    
  
  frame=  265 fps=2.2 q=-0.0 size=    1792kB time=00:00:10.03 bitrate=1463.5kbits/s speed=0.082x    
  
  frame=  266 fps=2.2 q=-0.0 size=    1792kB time=00:00:1

• Date and segment comparison feature

  31 octobre 2019, par Matomo Core Team — Analytics Tips, Development

  Get a clearer picture with the date and segment comparison feature

  What can you do with it ? What are the benefits ?

  Make informed decisions faster by easily comparing different segments and dates with each other.

  Compare report data for multiple segments next to each other

  

  Directly compare the behaviour of visitors from different segments e.g. customers with accounts vs. customers without accounts. Segment comparisons are a powerful way to compare different audience ; learn which ones perform better ; and in what way their actions differ. 

  Compare report data for two time periods next to each other

  

  See how your website performs compared to the previous month/week/year. Including seeing trends over those periods. Say, your business always picks up at the same times within a year, or there’s a sag in business for every user segment over this year and the last except one.

  By being able to compare date ranges you are able to get a quick overview of trends and period to period performance. Has a campaign worked better in September than in October ? Get an instant look by having the side-by-side comparison in Matomo.

  What is it capable of ?

  It lets you ask the question, “What is different ?”

  If you look at reports you’ll only see how people behave overall and if you look at specific segments you’ll see how they behave at face value, however, if you compare data together you’ll be quickly informed on what makes them unique. This data is still there when you don’t use the comparison feature, it’s just buried. Comparing data highlights discrepancies and leads to important questions and answers.

  For example, perhaps some class of users have very low engagement on a specific day compared to the rest of your visitors, and perhaps those users are responsible for an outsized proportion of churn. 

  Who could benefit from it, and why ?

  Everyone can benefit from using it (and probably should use it). It’s yours to experiment with ! You shouldn’t feel restricted to only comparing between the current and last period, or having questions before you start comparing. Follow your instincts and see what pops out when data from different segments is laid out next to each other.

  Where can you find it in Matomo ?

  • Segment comparison is activated by the new icon in the segment selector

  

  • Date comparison can be found in the calendar section of Matomo

  

  • The list of active comparisons is visible at the top of the page for all pages that support comparison
  • Comparisons are visible in every report that supports comparing data, and reports that do not support it will display a message saying so

  How do you use it ?

  • To compare segments, click the icon in the segment selector
  • To compare periods, click the ‘compare’ checkbox in the period selector, then select what period you want to compare it against in the dropdown (previous period, previous year, or a custom range)
  • When comparisons are active, view your reports as normal

  Take it away !

  The comparison feature is a new tool from Matomo 3.12.0 that highlights discrepancies and differences in data that can lead to more clarity and understanding, so we’d encourage everyone to use it. 

  Try it out today in your Matomo and see the power behind this new data comparison mode !