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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
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How to convert Lagarith .avi videos to MP4 using WinFF
24 avril 2014, par MoeinI have a bunch of .avi videos encoded with Lagarith codec. We would like to convert them in to a lossless .MP4 format so that they could be easily played on html. I want to keep video specifications remain the same if it’s possible and just convert the video to MP4.
I tried WinFF and also some manually written FFmpeg codes [without any specific reference to the Lagarith codec] but they all create a video which is not playable (neither with Windows Player nor with the HTML5 player). Also, FFmpeg returns exceptions like bellow.
Edit :
Here is the FFmpeg code generated by WinFF, this code gives me the following Exception :"C:\Program Files\WinFF\ffmpeg.exe" -y -i "C:\Desktop\Videos\input.avi" -f mp4 -r 29.97 -vcodec libx264 -preset slow -vf scale=640:480 -b:v 1000k -aspect 4:3 -flags +loop -cmp chroma -b:v 1250k -maxrate 1500k -bufsize 4M -bt 256k -refs 1 -bf 3 -coder 1 -me_method umh -me_range 16 -subq 7 -partitions +parti4x4+parti8x8+partp8x8+partb8x8 -g 250 -keyint_min 25 -level 30 -qmin 10 -qmax 51 -qcomp 0.6 -trellis 2 -sc_threshold 40 -i_qfactor 0.71 -acodec libvo_aacenc -b:a 112k -ar 48000 -ac 2 "C:\Desktop\Videos\output.mp4"
2nd Edit :
Here is the entire exception that I receive :C:\Users\Desktop\Videos>"c:\Program Files\ffmpeg\bin\ffmpeg.exe" -y -i 300
4_KDSmall-08_02_2013-11_43_34_415.avi -crf 26 -vcodec libx264 -pix_fmt yuv420p -
acodec libvo_aacenc -ac 1 -ar 16000 -b:a 32000 3004_KDSmall-08_02_2013-11_43_34_
415.mp4
ffmpeg version N-62439-g5e379cd Copyright (c) 2000-2014 the FFmpeg developers
built on Apr 13 2014 22:08:47 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable
-zlib
libavutil 52. 76.100 / 52. 76.100
libavcodec 55. 58.103 / 55. 58.103
libavformat 55. 37.100 / 55. 37.100
libavdevice 55. 13.100 / 55. 13.100
libavfilter 4. 4.100 / 4. 4.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from '3004_KDSmall-08_02_2013-11_43_34_415.avi':
Duration: 00:15:00.00, start: 0.000000, bitrate: 328 kb/s
Stream #0:0: Video: lagarith (LAGS / 0x5347414C), rgb24, 320x244, 326 kb/s,
7.50 tbr, 7.50 tbn, 7.50 tbc
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (3004_KD
Small-08_02_2013-11_43_34_415.mp4) has not been used for any stream. The most li
kely reason is either wrong type (e.g. a video option with no video streams) or
that it is a private option of some encoder which was not actually used for any
stream.
[libx264 @ 0000000004288320] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 0000000004288320] profile High, level 1.2
[libx264 @ 0000000004288320] 264 - core 142 r2409 d6b4e63 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=1 sliced_threads=0 nr=0 dec
imate=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=
7 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=26.0 qcomp=0.6
0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '3004_KDSmall-08_02_2013-11_43_34_415.mp4':
Metadata:
encoder : Lavf55.37.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x24
4, q=-1--1, 15360 tbn, 7.50 tbc
Stream mapping:
Stream #0:0 -> #0:0 (lagarith -> libx264)
Press [q] to stop, [?] for help
frame= 1024 fps=0.0 q=27.0 size= 17kB time=00:02:08.80 bitrate= 1.1kbits/
frame= 1947 fps=1943 q=27.0 size= 234kB time=00:04:11.86 bitrate= 7.6kbits
frame= 2695 fps=1794 q=27.0 size= 659kB time=00:05:51.60 bitrate= 15.4kbits
frame= 3971 fps=1983 q=27.0 size= 680kB time=00:08:41.73 bitrate= 10.7kbits
frame= 5256 fps=2101 q=27.0 size= 702kB time=00:11:33.06 bitrate= 8.3kbits
frame= 6074 fps=2023 q=27.0 size= 1018kB time=00:13:22.13 bitrate= 10.4kbits
frame= 6343 fps=1810 q=27.0 size= 1625kB time=00:13:58.00 bitrate= 15.9kbits
frame= 6588 fps=1644 q=27.0 size= 2247kB time=00:14:30.66 bitrate= 21.1kbits
[lagarith @ 0000000004378fc0] Unsupported Lagarith frame type: 0x24
[lagarith @ 00000000043796c0] Unsupported Lagarith frame type: 0x38
[lagarith @ 000000000437a700] Unsupported Lagarith frame type: 0x4c
[lagarith @ 000000000437d740] Unsupported Lagarith frame type: 0x60
[lagarith @ 000000000437e760] Unsupported Lagarith frame type: 0x74
[lagarith @ 0000000007fcb800] Unsupported Lagarith frame type: 0x88
[lagarith @ 0000000007fcc820] Unsupported Lagarith frame type: 0x9c
[lagarith @ 0000000007fd0860] Unsupported Lagarith frame type: 0xb0
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[lagarith @ 0000000007fd0ce0] Unsupported Lagarith frame type: 0xc4
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[lagarith @ 0000000004378fc0] Unsupported Lagarith frame type: 0xd8
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[lagarith @ 00000000043796c0] Unsupported Lagarith frame type: 0xec
frame= 6750 fps=1524 q=-1.0 Lsize= 2881kB time=00:14:59.73 bitrate= 26.2kbit
s/s
video:2802kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 2.842291%
[libx264 @ 0000000004288320] frame I:29 Avg QP: 8.05 size: 2113
[libx264 @ 0000000004288320] frame P:1874 Avg QP:11.85 size: 799
[libx264 @ 0000000004288320] frame B:4847 Avg QP:13.60 size: 270
[libx264 @ 0000000004288320] consecutive B-frames: 1.3% 6.0% 8.6% 84.1%
[libx264 @ 0000000004288320] mb I I16..4: 82.8% 4.8% 12.4%
[libx264 @ 0000000004288320] mb P I16..4: 0.2% 0.2% 0.3% P16..4: 5.5% 4.9
% 5.0% 0.0% 0.0% skip:84.0%
[libx264 @ 0000000004288320] mb B I16..4: 0.0% 0.0% 0.1% B16..8: 2.9% 2.2
% 1.4% direct: 0.7% skip:92.7% L0:55.4% L1:38.8% BI: 5.8%
[libx264 @ 0000000004288320] 8x8 transform intra:13.7% inter:12.4%
[libx264 @ 0000000004288320] coded y,uvDC,uvAC intra: 21.9% 42.5% 34.9% inter: 2
.7% 5.4% 4.8%
[libx264 @ 0000000004288320] i16 v,h,dc,p: 81% 9% 8% 2%
[libx264 @ 0000000004288320] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 14% 49% 2% 3%
4% 3% 2% 2%
[libx264 @ 0000000004288320] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 14% 34% 4% 4%
5% 4% 4% 3%
[libx264 @ 0000000004288320] i8c dc,h,v,p: 72% 12% 12% 4%
[libx264 @ 0000000004288320] Weighted P-Frames: Y:0.1% UV:0.1%
[libx264 @ 0000000004288320] ref P L0: 42.5% 5.1% 29.3% 23.0%
[libx264 @ 0000000004288320] ref B L0: 52.8% 37.8% 9.5%
[libx264 @ 0000000004288320] ref B L1: 82.3% 17.7%
[libx264 @ 0000000004288320] kb/s:25.50Any body could help me easily doing this conversion ?
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Assembling frames into a video in Node.js using fluent-ffmpeg [closed]
14 novembre 2024, par AndreiI have the original video and it's modified frames in a folder. Now I want to assemble the modified frames into a new video. I also want to take the audio from the original video and add it to the new video.


My latest code is this using fluent-ffmpeg. But it's not working.


await new Promise((resolve, reject) => {
 ffmpeg(path.join(processedFramesDir, "frame-%d.png"))
 .inputOptions(["-framerate 30", "-start_number 1"])
 .input(videoPath)
 .outputOptions([
 "-c:v",
 "libx264",
 "-c:a",
 "copy",
 "-shortest",
 "-r",
 "30",
 "-pix_fmt",
 "yuv420p",
 ])
 .outputOptions(["-map 0:v:0", "-map 1:a:0"])
 .save(outputVideoPath)
 .on("start", (commandLine) => {
 console.log("FFmpeg command: " + commandLine);
 })
 .on("stderr", (stderrLine) => {
 console.log("FFmpeg stderr: " + stderrLine);
 })
 .on("end", resolve)
 .on("error", (err, stdout, stderr) => {
 console.error("Error assembling video:", err);
 console.error("FFmpeg stderr:", stderr);
 reject(err);
 });
});


I get this error even though the frames exist and they are valid pngs :

FFmpeg command: ffmpeg -framerate 30 -start_number 1 -i /tmp/video-processing-CyULOE/processedFrames/frame-%05d.png -i /tmp/video-processing-CyULOE/input.mp4 -y -c:v libx264 -c:a copy -shortest -r 30 -pix_fmt yuv420p -map 0:v:0 -map 1:a:0 /tmp/video-processing-CyULOE/output.mp4 2024-11-13 23:40:27 FFmpeg stderr: ffmpeg version 4.1.11-0+deb10u1 Copyright (c) 2000-2023 the FFmpeg developers 2024-11-13 23:40:27 FFmpeg stderr: built with gcc 8 (Debian 8.3.0-6) 2024-11-13 23:40:27 FFmpeg stderr: configuration: --prefix=/usr --extra-version=0+deb10u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared 2024-11-13 23:40:27 FFmpeg stderr: libavutil 56. 22.100 / 56. 22.100 2024-11-13 23:40:27 FFmpeg stderr: libavcodec 58. 35.100 / 58. 35.100 2024-11-13 23:40:27 FFmpeg stderr: libavformat 58. 20.100 / 58. 20.100 2024-11-13 23:40:27 FFmpeg stderr: libavdevice 58. 5.100 / 58. 5.100 2024-11-13 23:40:27 FFmpeg stderr: libavfilter 7. 40.101 / 7. 40.101 2024-11-13 23:40:27 FFmpeg stderr: libavresample 4. 0. 0 / 4. 0. 0 2024-11-13 23:40:27 FFmpeg stderr: libswscale 5. 3.100 / 5. 3.100 2024-11-13 23:40:27 FFmpeg stderr: libswresample 3. 3.100 / 3. 3.100 2024-11-13 23:40:27 FFmpeg stderr: libpostproc 55. 3.100 / 55. 3.100 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646F8A20000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646C89F0000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x524946464EA10000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x5249464628A40000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646AAA30000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x524946467CA10000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646AAA30000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646BAA10000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646ACA30000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x5249464670A80000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646E8A60000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x524946469AA60000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x5249464672A90000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646B8A50000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646AAA80000. 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x52494646A0A70000. 2024-11-13 23:40:27 FFmpeg stderr: Last message repeated 1 times 2024-11-13 23:40:27 FFmpeg stderr: [png @ 0x5630fb89a880] Invalid PNG signature 0x5249464646A80000. 2024-11-13 23:40:27 FFmpeg stderr: [image2 @ 0x5630fb898a40] decoding for stream 0 failed 2024-11-13 23:40:27 FFmpeg stderr: [image2 @ 0x5630fb898a40] Could not find codec parameters for stream 0 (Video: png, none(pc)): unspecified size 2024-11-13 23:40:27 FFmpeg stderr: Consider increasing the value for the 'analyzeduration' and 'probesize' options 2024-11-13 23:40:27 FFmpeg stderr: Input #0, image2, from '/tmp/video-processing-CyULOE/processedFrames/frame-%05d.png': 2024-11-13 23:40:27 FFmpeg stderr: Duration: 00:00:00.60, start: 0.000000, bitrate: N/A 2024-11-13 23:40:27 FFmpeg stderr: Stream #0:0: Video: png, none(pc), 30 fps, 30 tbr, 30 tbn, 30 tbc 2024-11-13 23:40:28 FFmpeg stderr: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/video-processing-CyULOE/input.mp4': 2024-11-13 23:40:28 FFmpeg stderr: Metadata: 2024-11-13 23:40:28 FFmpeg stderr: major_brand : isom 2024-11-13 23:40:28 FFmpeg stderr: minor_version : 512 2024-11-13 23:40:28 FFmpeg stderr: compatible_brands: isomiso2avc1mp41 2024-11-13 23:40:28 FFmpeg stderr: encoder : Lavf60.16.100 2024-11-13 23:40:28 FFmpeg stderr: Duration: 00:00:00.62, start: 0.000000, bitrate: 4289 kb/s 2024-11-13 23:40:28 FFmpeg stderr: Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 4395 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default) 2024-11-13 23:40:28 FFmpeg stderr: Metadata: 2024-11-13 23:40:28 FFmpeg stderr: handler_name : VideoHandler 2024-11-13 23:40:28 FFmpeg stderr: Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default) 2024-11-13 23:40:28 FFmpeg stderr: Metadata: 2024-11-13 23:40:28 FFmpeg stderr: handler_name : SoundHandler 2024-11-13 23:40:28 FFmpeg stderr: Stream mapping: 2024-11-13 23:40:28 FFmpeg stderr: Stream #0:0 -> #0:0 (png (native) -> h264 (libx264)) 2024-11-13 23:40:28 FFmpeg stderr: Stream #1:1 -> #0:1 (copy) 2024-11-13 23:40:28 FFmpeg stderr: Press [q] to stop, [?] for help 2024-11-13 23:40:28 FFmpeg stderr: [image2 @ 0x5630fb898a40] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8) 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb9b7700] Invalid PNG signature 0x52494646F8A20000. 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb988dc0] Invalid PNG signature 0x52494646C89F0000. 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba3edc0] Invalid PNG signature 0x524946464EA10000. 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba40600] Invalid PNG signature 0x5249464628A40000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb8c7900] Invalid PNG signature 0x52494646AAA30000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb9b7700] Invalid PNG signature 0x524946467CA10000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb988dc0] Invalid PNG signature 0x52494646AAA30000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba3edc0] Invalid PNG signature 0x52494646BAA10000. 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba40600] Invalid PNG signature 0x52494646ACA30000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: Last message repeated 1 times 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb8c7900] Invalid PNG signature 0x5249464670A80000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb9b7700] Invalid PNG signature 0x52494646E8A60000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb988dc0] Invalid PNG signature 0x524946469AA60000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba3edc0] Invalid PNG signature 0x5249464672A90000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba40600] Invalid PNG signature 0x52494646B8A50000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb8c7900] Invalid PNG signature 0x52494646AAA80000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb9b7700] Invalid PNG signature 0x52494646A0A70000. 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fb988dc0] Invalid PNG signature 0x52494646A0A70000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: [png @ 0x5630fba3edc0] Invalid PNG signature 0x5249464646A80000. 2024-11-13 23:40:28 FFmpeg stderr: Error while decoding stream #0:0: Invalid data found when processing input 2024-11-13 23:40:28 FFmpeg stderr: Last message repeated 4 times 2024-11-13 23:40:28 FFmpeg stderr: Cannot determine format of input stream 0:0 after EOF 2024-11-13 23:40:28 FFmpeg stderr: Error marking filters as finished 2024-11-13 23:40:28 FFmpeg stderr: Conversion failed! 2024-11-13 23:40:28 FFmpeg stderr: 2024-11-13 23:40:28 Error assembling video: Error: ffmpeg exited with code 1: Cannot determine format of input stream 0:0 after EOF 2024-11-13 23:40:28 Error marking filters as finished 2024-11-13 23:40:28 Conversion failed! 2024-11-13 23:40:28 2024-11-13 23:40:28 at ChildProcess.<anonymous> (/usr/src/app/node_modules/fluent-ffmpeg/lib/processor.js:180:22) 2024-11-13 23:40:28 at ChildProcess.emit (node:events:519:28) 2024-11-13 23:40:28 at ChildProcess._handle.onexit (node:internal/child_process:294:12)</anonymous>

The code used to


ffmpeg(videoPath) .screenshots({ folder: framesDir, filename: "frame-%i.png", size: "?x1080", count: 10, }) .on("end", resolve) .on("error", reject);


The pngs are valid and displaying in windows photos viewer


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Top Conversion Metrics to Track in 2024
22 janvier 2024, par Erin2023 boasts 2.64 billion online shoppers worldwide ; that’s more than a third of the global population. With these numbers on an upward trajectory in 2024, conversion metrics are more important than ever to help marketers optimise the online shopping experience.
In this article, we’ll provide predictions for the most important conversion metrics you should keep track of in 2024. We’ll also examine how social media can make or break your brand engagement strategy. Keep reading to stay ahead of the competition for 2024 and gain tips and tricks for improving conversion performance.
What are conversion metrics ?
In technical terms, conversion metrics are the quantifiable measurements used to track the success of specific outcomes on a website or marketing campaign. Conversion metrics demonstrate how well your website prompts visitors to take desirable actions, like signing up for a newsletter, making a purchase, or filling out a form, for instance.
Let’s say you’re running a lemonade stand, and you want to compare the number of cups sold to the number of people who approached your stand (your conversion rate). This ratio of cups sold to the total number of people can help you reassess your sales approach. If the ratio is low, you might reconsider your approach ; if it’s high, you can analyse what makes your technique successful and double down.
In 2023, we saw the average conversion rate for online shopping grow by 5.53% compared to the previous year. An increase in conversion rate typically indicates a higher percentage of website visitors converting to buyers. It can also be a good sign for marketing teams that marketing campaigns are more effective, and website experiences are more user-friendly than the previous year.
Conversion metrics are a marketers’ bread and butter. Whether it’s through measuring the efficacy of campaigns, honing in on the most effective marketing channels or understanding customer behaviour — don’t underestimate the power of conversion metrics.
Conversion rate vs. conversion value
Before we dive into the top conversion metrics to track in 2024, let’s clear up any confusion about the difference between conversion rate and conversion value. Conversion rate is a metric that measures the ratio of website visitors/users who complete a conversion action to the total number of website visitors/users. Conversion rates are communicated as percentages.
A conversion action can mean many different things depending on your product or service. Some examples of conversion actions that website visitors can take include :
- Making a purchase
- Filling out a form
- Subscribing to a newsletter
- Any other predefined goal
Conversion rate is arguably one of the most valuable conversion metrics if you want to pinpoint areas for improvement in your marketing strategy and user experience (UX).
A good conversion rate completely depends on the type of conversion being measured. Shopify has reported that the average e-commerce conversion rate will be 2.5%-3% in 2023, so if you fall anywhere in this range, you’re in good shape. Below is a visual aid for how you can calculate conversion rate depending on which conversion actions you decide to track :
Conversion value is also a quantifiable metric, but there’s a key difference : conversion value assigns a numerical value to each conversion based on the monetary value of the completed conversion action. Conversion value is not calculated with a formula but is assigned based on revenue generated from the conversion. Conversion value is important for calculating marketing efforts’ return on investment (ROI) and is often used to allocate marketing budgets better.
Both conversion rate and conversion value are vital metrics in digital marketing. When used in tandem, they can provide a holistic perspective on your marketing efforts’ financial impact and success.
9 important conversion metrics to track in 2024
Based on research and results from 2023, we have compiled this list of predictions for the most important metrics to track in 2024.
1. Conversion rate
To start things out strong, we’ve got the timeless and indispensable conversion rate. As we discussed in the previous section, conversion rate measures how successfully your website convinces visitors to take important actions, like making purchases or signing up for newsletters.
An easy-to-use web analytics solution like Matomo can help in tracking conversion rates. Matomo automatically calculates conversion rates of individual pages, overall website and on a goal-by-goal basis. So you can compare the conversion rate of your newsletter sign up goal vs a form submission goal on your site and see what is underperforming and requires improvement.
In the example above in Matomo, it’s clear that our goal of getting users to comment is not doing well, with only a 0.03% conversion rate. To improve our website’s overall conversion rate, we should focus our efforts on improving the user commenting experience.
For 2024, we predict that the conversion rate will be just as important to track as in 2023.
2. Average visit duration
This key metric tracks how long users spend on your website. A session typically starts when a user lands on your website and ends when they close the browser or have been inactive for some time ( 30 minutes). Tracking the average visit duration can help you determine how well your content captures users’ attention or how engaged users are when navigating your website.
Average Visit Duration = Total Time Spent / Number of Visits
Web analytics tools like Matomo help in monitoring conversion rate metrics like average visit duration. Timestamps are assigned to each interaction within a visit, so that average visit duration can be calculated. Analysing website visit information like average visit duration allows you to evaluate the relevance of your content with your target audience.
3. Starter rate
If your business relies on getting leads through forms, paying attention to Form Analytics is crucial for improving conversion rates. The “starter rate” metric is particularly important—it indicates the number of who people start filling out the form, after seeing it.
When you’re working to increase conversion rates and capture more leads, keeping an eye on the starter rate helps you understand where users might encounter issues or lose interest early in the form-filling process. Addressing these issues can simplify the form-filling experience and increase the likelihood of successful lead captures.
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Concrete CMS tripled their leads using Form Analytics in Matomo—see how in their case study.
4. Bounce rate
Bounce rate reflects the percentage of visitors who exit your site after interacting with a single page. Bounce rate is an important metric for understanding how relevant your content is to visitors or how optimised your user experience is. A high bounce rate can indicate that visitors are having trouble navigating your website or not finding what they’re looking for.
Matomo automatically calculates bounce rate on each page and for your overall website.
Bounce Rate = (# of Single-Page Sessions / Total # of Sessions) * 100
5. Cost-per-conversion
This metric quantifies the average cost incurred for each conversion action (i.e., sale, acquired lead, sign-up, etc.). Marketers use cost-per-conversion to assess the cost efficiency of a marketing campaign. You want to aim for a lower cost-per-conversion, meaning your advertising efforts aren’t breaking the bank. A high cost-per-conversion could be acceptable in luxury industries, but it often indicates a low marketing ROI.
Cost-per-Conversion = Ad Spend / # of Conversions
By connecting your Matomo with Google Ads through Advertising Conversion Export feature in Matomo, you can keep tabs on your conversions right within the advertising platform. This feature also works with Microsoft Advertising and Yandex Ads.
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6. Average order value (AOV)
AOV is a conversion metric that calculates the average monetary value of each order. AOV is crucial for helping e-commerce businesses understand the value of their transactions. A high AOV means buyers spend more per transaction and could be more easily influenced by upselling or cross-selling. Low AOV isn’t necessarily bad — you can compensate for a low AOV by boosting transaction volume.
AOV = Total Revenue / Total # of Orders
Matomo automatically tracks important e-commerce metrics such as AOV, the percentage of visits with abandoned carts and the conversion rate for e-commerce orders.
7. Exit rate
Exit rate measures the percentage of visitors who leave a specific webpage after viewing it. Exit rate differs from bounce rate in that it focuses on the last page visitors view before leaving the site. A high exit rate should be examined to identify issues with visitors abandoning the specific page.
Exit Rate = (# of Exits from a Page / Total # of Pageviews for that Page) * 100
In the Matomo report above, it’s clear that 77% of visits to the diving page ended after viewing it (exit rate), while 23% continued exploring.
On the other hand, our products page shows a lower exit rate at 36%, suggesting that more visitors continue navigating through the site after checking out the products.
How to improve your conversion performance
If you’re curious about improving your conversion performance, this section is designed to guide you through that exact process.
Understand your target audience and their behaviour
You may need to return to the drawing board if you’re noticing high bounce rates or a lack of brand engagement. In-depth audience analysis can unveil user demographics, preferences and behaviours. This type of user data is crucial for building user personas, segmenting your visitors and targeting marketing campaigns accordingly.
You can segment your website visitors in a number of web analytics solutions, but for the example below, we’ll look at segmenting in Matomo.
In this instance, we’ve segmented visitors by mobile users. This helps us see how mobile users are doing with our newsletter signup goal and identify the countries where they convert the most. It also shows how well mobile users are doing with our conversion goal over time.
It’s clear that our mobile users are converting at a very low rate—just 0.01%. This suggests there’s room for improvement in the mobile experience on our site.
Optimise website design, landing pages, page loading speed and UX
A slow page loading speed can result in high exit rates, user dissatisfaction and lost revenue. Advanced web analytics solutions like Matomo, which provides heatmaps and session recordings, can help you find problems in your website design and understand how users interact with it.
Making a website that focuses on users and has an easy-to-follow layout will make the user experience smooth and enjoyable.
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Create compelling calls-to-action (CTA)
Research shows that a strategically placed and relevant CTA can significantly increase your revenue. CTAs guide prospects toward conversion and must have a compelling and clear message.
You can optimise CTAs by analysing how users interact with them — this helps you tailor them to better resonate with your target audience.
A/B testing
A/B testing can improve your conversion performance by allowing you to experiment with different versions of a web page. By comparing the impact of different web page elements on conversions, you can optimise your website with confidence.
Key conversion metrics takeaways
Whether understanding user behaviour to develop a more intuitive user experience or guessing which marketing channel is the most effective, conversion metrics can be a marketer’s best friend. Conversion metrics help you save time, money and headaches when making your campaigns and website as effective as possible.
Make improving conversion rates easier with Matomo, a user-friendly all-in-one solution. Matomo ensures reliable insights by delivering accurate data while prioritising compliance and privacy.
Get quality insights from your conversion metrics by trying Matomo free for 21 days. No credit card required.
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