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• FFMPEG fade in/out expressed in milliseconds

  22 juillet 2020, par orestino

  I working on a programmatic sketch to cut, crop and fade in/out audio from a single input video file.
Everything works pretty well except for the audio fade in fade out.

  


  Everything work fine if I set a fade in and fade out time of 1 (or more) seconds. Here's my command :

  


  ffmpeg -ss 0:1:11.10 -i INPUT_FILE.mp4 -filter:a afade=t=in:st=0:d=1.0,afade=t=out:st=55.867:d=1.0 -filter:v crop=720:720:138:0 -to 0:0:56.86 OUTPUT_FILE.mp4


  


  Fade filter stop working if I set time less than 1 secs (say 100ms like the following example).

  


  ffmpeg -ss 0:1:11.10 -i INPUT_FILE.mp4 -filter:a afade=t=in:st=0:d=0.1,afade=t=out:st=56.767:d=0.1 -filter:v crop=720:720:138:0 -to 0:0:56.86 OUTPUT_FILE.mov


  


  I mean, ffmpeg is not complaining about any error but the output video file simply has no fade in or fade out.

  


  Why ?
What I'm doing wrong ?

  


  Thank you so much for your support

  


  Edit 22/07/2020 :
here's the output from the second command :

  


  ffmpeg -ss 0:1:11.10 -i 2020-07-20_00-13-35.mkv -filter:a afade=t=in:st=0:d=0.1,afade=t=out:st=56.767:d=0.1 -filter:v crop=720:720:138:0 -to 0:0:56.86 ./_selections/2020-07-20_00-13-35_R1_crop2_w_fadein_fadeout_0:1:11.10.mov
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, matroska,webm, from '2020-07-20_00-13-35.mkv':
  Metadata:
    ENCODER         : Lavf57.83.100
  Duration: 00:03:19.23, start: 0.000000, bitrate: 2661 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(progressive), 1440x900, 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
    Metadata:
      DURATION        : 00:03:19.233000000
    Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp (default)
    Metadata:
      title           : audio desktop
      DURATION        : 00:03:19.065000000
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x564dad2f9680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x564dad2f9680] profile High, level 3.1
[libx264 @ 0x564dad2f9680] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=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
Output #0, mov, to './_selections/2020-07-20_00-13-35_R1_crop2_w_fadein_fadeout_0:1:11.10.mov':
  Metadata:
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 720x720, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      DURATION        : 00:03:19.233000000
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      title           : audio desktop
      DURATION        : 00:03:19.065000000
      encoder         : Lavc57.107.100 aac
frame= 1706 fps=140 q=-1.0 Lsize=    2685kB time=00:00:56.86 bitrate= 386.7kbits/s speed=4.67x    
video:1681kB audio:942kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.351145%
[libx264 @ 0x564dad2f9680] frame I:7     Avg QP:15.76  size: 60653
[libx264 @ 0x564dad2f9680] frame P:448   Avg QP:23.13  size:  1372
[libx264 @ 0x564dad2f9680] frame B:1251  Avg QP:31.17  size:   545
[libx264 @ 0x564dad2f9680] consecutive B-frames:  1.3%  2.3%  1.4% 95.0%
[libx264 @ 0x564dad2f9680] mb I  I16..4: 29.2% 37.7% 33.1%
[libx264 @ 0x564dad2f9680] mb P  I16..4:  0.1%  0.4%  0.5%  P16..4:  2.1%  0.2%  0.2%  0.0%  0.0%    skip:96.4%
[libx264 @ 0x564dad2f9680] mb B  I16..4:  0.0%  0.3%  0.2%  B16..8:  1.5%  0.1%  0.1%  direct: 0.0%  skip:97.8%  L0:51.7% L1:46.3% BI: 2.0%
[libx264 @ 0x564dad2f9680] 8x8 transform intra:43.2% inter:27.7%
[libx264 @ 0x564dad2f9680] coded y,uvDC,uvAC intra: 35.4% 42.2% 40.1% inter: 0.3% 0.5% 0.3%
[libx264 @ 0x564dad2f9680] i16 v,h,dc,p: 61% 37%  2%  0%
[libx264 @ 0x564dad2f9680] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30%  7% 59%  2%  0%  0%  0%  1%  1%
[libx264 @ 0x564dad2f9680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 17% 25% 10%  4%  5%  5%  7%  7%
[libx264 @ 0x564dad2f9680] i8c dc,h,v,p: 66% 19%  7%  7%
[libx264 @ 0x564dad2f9680] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x564dad2f9680] ref P L0: 65.1% 15.3% 13.6%  5.9%
[libx264 @ 0x564dad2f9680] ref B L0: 68.1% 27.1%  4.8%
[libx264 @ 0x564dad2f9680] ref B L1: 95.3%  4.7%
[libx264 @ 0x564dad2f9680] kb/s:242.09
[aac @ 0x564dad2f25a0] Qavg: 606.451


  


• Cohort Analysis 101 : How-To, Examples & Top Tools

  13 novembre 2023, par Erin — Analytics Tips

  Imagine that a farmer is trying to figure out why certain hens are laying large brown eggs and others are laying average-sized white eggs.

  The farmer decides to group the hens into cohorts based on what kind of eggs they lay to make it easier to detect patterns in their day-to-day lives. After careful observation and analysis, she discovered that the hens laying big brown eggs ate more than the roost’s other hens.

  With this cohort analysis, the farmer deduced that a hen’s body weight directly corresponds to egg size. She can now develop a strategy to increase the body weight of her hens to sell more large brown eggs, which are very popular at the weekly farmers’ market.

  Cohort analysis has a myriad of applications in the world of web analytics. Like our farmer, you can use it to better understand user behaviour and reap the benefits of your efforts. This article will discuss the best practices for conducting an effective cohort analysis and compare the top cohort analysis tools for 2024. 

  What is cohort analysis ?

  By definition, cohort analysis refers to a technique where users are grouped based on shared characteristics or behaviours and then examined over a specified period.

  Think of it as a marketing superpower, enabling you to comprehend user behaviours, craft personalised campaigns and allocate resources wisely, ultimately resulting in improved performance and better ROI.

  Why does cohort analysis matter ?

  In web analytics, a cohort is a group of users who share a certain behaviour or characteristic. The goal of cohort analysis is to uncover patterns and compare the performance and behaviour of different cohorts over time.

  An example of a cohort is a group of users who made their first purchase during the holidays. By analysing this cohort, you could learn more about their behaviour and buying patterns. You may discover that this cohort is more likely to buy specific product categories as holiday gifts — you can then tailor future holiday marketing campaigns to include these categories. 

  Types of cohort analysis

  There are a few different types of notable cohorts : 

  1. Time-based cohorts are groups of users categorised by a specific time. The example of the farmer we went over at the beginning of this section is a great example of a time-based cohort.
  2. Acquisition cohorts are users acquired during a specific time frame, event or marketing channel. Analysing these cohorts can help you determine the value of different acquisition methods. 
  3. Behavioural cohorts consist of users who show similar patterns of behaviour. Examples include frequent purchases with your mobile app or digital content engagement. 
  4. Demographic cohorts share common demographic characteristics like age, gender, education level and income. 
  5. Churn cohorts are buyers who have cancelled a subscription/stopped using your service within a specific time frame. Analysing churn cohorts can help you understand why customers leave.
  6. Geographic cohorts are pretty self-explanatory — you can use them to tailor your marketing efforts to specific regions. 
  7. Customer journey cohorts are based on the buyer lifecycle — from acquisition to adoption to retention. 
  8. Product usage cohorts are buyers who use your product/service specifically (think basic users, power users or occasional users). 

  Best practices for conducting a cohort analysis 

  So, you’ve decided you want to understand your user base better but don’t know how to go about it. Perhaps you want to reduce churn and create a more engaging user experience. In this section, we’ll walk you through the dos and don’ts of conducting an effective cohort analysis. Remember that you should tailor your cohort analysis strategy for organisation-specific goals.

  

  1. Preparing for cohort analysis : 

  • • First, define specific goals you want your cohort analysis to achieve. Examples include improving conversion rates or reducing churn.
    • Choosing the right time frame will help you compare short-term vs. long-term data trends. 

  2. Creating effective cohorts : 

  • • Define your segmentation criteria — anything from demographics to location, purchase history or user engagement level. Narrowing in on your specific segments will make your cohort analysis more precise. 
    • It’s important to find a balance between cohort size and similarity. If your cohort is too small and diverse, you won’t be able to find specific behavioural patterns.

  3. Performing cohort analysis :

  • • • Study retention rates across cohorts to identify patterns in user behaviour and engagement over time. Pay special attention to cohorts with high retention or churn rates. 
      • Analysing cohorts can reveal interesting behavioural insights — how do specific cohorts interact with your website ? Do they have certain preferences ? Why ? 

  4. Visualising and interpreting data :

  • • Visualising your findings can be a great way to reveal patterns. Line charts can help you spot trends, while bar charts can help you compare cohorts.
    • Guide your analytics team on how to interpret patterns in cohort data. Watch for sudden drops or spikes and what they could mean. 

  5. Continue improving :

  • • User behaviour is constantly evolving, so be adaptable. Continuous tracking of user behaviour will help keep your strategies up to date. 
    • Encourage iterative analysis optimisation based on your findings. 

  

  The top cohort analysis tools for 2024

  In this section, we’ll go over the best cohort analysis tools for 2024, including their key features, cohort analysis dashboards, cost and pros and cons.

  1. Matomo

  

  Matomo is an open-source, GDPR-compliant web analytics solution that offers cohort analysis as a standard feature in Matomo Cloud and is available as a plugin for Matomo On-Premise. Pairing traditional web analytics with cohort analysis will help you gain even deeper insights into understanding user behaviour over time. 

  You can use the data you get from web analytics to identify patterns in user behaviour and target your marketing strategies to specific cohorts. 

  Key features

  • Matomo offers a cohorts table that lets you compare cohorts side-by-side, and it comes with a time series.
    • All core session and conversion metrics are also available in the Cohorts report.
  • Create custom segments based on demographics, geography, referral sources, acquisition date, device types or user behaviour. 
  • Matomo provides retention analysis so you can track how many users from a specific cohort return to your website and when. 
  • Flexibly analyse your cohorts with custom reports. Customise your reports by combining metrics and dimensions specific to different cohorts. 
  • Create cohorts based on events or interactions with your website. 
  • Intuitive, colour-coded data visualisation, so you can easily spot patterns.

  Pros

  • No setup is needed if you use the JavaScript tracker
  • You can fetch cohort without any limit
  • 100% accurate data, no AI or Machine Learning data filling, and without the use of data sampling

  Cons

  • Matomo On-Premise (self-hosted) is free, but advanced features come with additional charges
  • Servers and technical know-how are required for Matomo On-Premise. Alternatively, for those not ready for self-hosting, Matomo Cloud presents a more accessible option and starts at $19 per month.

  Price : 

  • Matomo Cloud : 21-day free trial, then starts at $19 per month (includes Cohorts).
  • Matomo On-Premise : Free to self-host ; Cohorts plugin : 30-day free trial, then $99 per year.

  2. Mixpanel

  

  Mixpanel is a product analytics tool designed to help teams better understand user behaviour. It is especially well-suited for analysing user behaviour on iOS and Android apps. It offers various cohort analytics features that can be used to identify patterns and engage your users. 

  Key features

  • Create cohorts based on criteria such as sign-up date, first purchase date, referral source, geographic location, device type or another custom event/property. 
  • Compare how different cohorts engage with your app with Mixpanel’s comparative analysis features.
  • Create interactive dashboards, charts and graphs to visualise data.
  • Mixpanel provides retention analysis tools to see how often users return to your product over time. 
  • Send targeted messages and notifications to specific cohorts to encourage user engagement, announce new features, etc. 
  • Track and analyse user behaviours within cohorts — understand how different types of users engage with your product.

  Pros

  • Easily export cohort analysis data for further analysis
  • Combined with Mixpanel reports, cohorts can be a powerful tool for improving your product

  Cons

  • With the free Mixpanel plan, you can’t save cohorts for future use
  • Enterprise-level pricing is expensive
  • Time-consuming cohort creation process

  Price : Free basic version. The growth version starts at £16/month.

  3. Amplitude

  

  Amplitude is another product analytics solution that can help businesses track user interactions across digital platforms. Amplitude offers a standard toolkit for in-depth cohort analysis.

  Key features

  • Create cohorts based on criteria such as sign-up date, first purchase date, referral source, geographic location, device type or another custom event/property. 
  • Conduct behavioural, time-based and retention analyses.
  • Create custom reports with custom data.
  • Segment cohorts further based on additional criteria and compare multiple cohorts side-by-side.

  Pros

  • Highly customisable and flexible
  • Quick and simple setup

  Cons

  • Steep learning curve — requires significant training 
  • Slow loading speed
  • High price point compared to other tools

  Price : Free basic version. Plus version starts at £40/month (billed annually).

  4. Kissmetrics

  

  Kissmetrics is a customer engagement automation platform that offers powerful analytics features. Kissmetrics provides behavioural analytics, segmentation and email campaign automation. 

  Key features

  • Create cohorts based on demographics, user behaviour, referral sources, events and specific time frames.
  • The user path tool provides path visualisation so you can identify common paths users take and spot abandonment points. 
  • Create and optimise conversion funnels.
  • Customise events, user properties, funnels, segments, cohorts and more.

  Pros

  • Powerful data visualisation options
  • Highly customisable

  Cons

  • Difficult to install
  • Not well-suited for small businesses
  • Limited integration with other tools

  Price : Starting at £21/month for 10k events (billed monthly).

  Improve your cohort analysis with Matomo

  When choosing a cohort analysis tool, consider factors such as the tool’s ease of integration with your existing systems, data accuracy, the flexibility it offers in defining cohorts, the comprehensiveness of reporting features, and its scalability to accommodate the growth of your data and analysis needs over time. Moreover, it’s essential to confirm GDPR compliance to uphold rigorous privacy standards. 

  If you’re ready to understand your user’s behaviour, take Matomo for a test drive. Paired with web analytics, this powerful combination can advance your marketing efforts. Start your 21-day free trial today — no credit card required.

• FFmpeg fails to draw text

  6 avril 2024, par Edoardo Balducci

  I've rarely used ffmpeg before, so, sorry If the question is too dumb.
I have a problem adding a text layer to a video frame using ffmpeg.

  


  This is my current code :

  


  import subprocess
from PyQt5.QtGui import QPixmap, QImage
from PyQt5.QtWidgets import QLabel

class VideoThumbnailLabel(QLabel):
    def __init__(self, file_path, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.video = video
        video_duration = self.get_video_duration(file_path)
        thumbnail_path = self.get_thumbnail(file_path, video_duration)
        if thumbnail_path:
            self.setPixmap(QPixmap(thumbnail_path).scaled(160, 90, Qt.KeepAspectRatio))
        self.setToolTip(f"{video.title}\n{video.description}")

    def get_video_duration(self, video_path):
        """Returns the duration of the video in seconds."""
        command = [
            'ffprobe', '-v', 'error', '-show_entries',
            'format=duration', '-of',
            'default=noprint_wrappers=1:nokey=1', video_path
        ]
        try:
            result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
            if result.returncode != 0:
                print(f"ffprobe error: {result.stderr}")
                return 0
            duration = float(result.stdout)
            return int(duration)  # Returning duration as an integer for simplicity
        except Exception as e:
            print(f"Error getting video duration: {e}")
            return 0

    def get_thumbnail(self, video_path, duration):
        """Generates a thumbnail with the video duration overlaid."""
        output_path = "thumbnail.jpg"  # Temporary thumbnail file
        duration_str = f"{duration // 3600:02d}:{(duration % 3600) // 60:02d}:{duration % 60:02d}"
        command = [
            'ffmpeg', '-i', video_path,
            '-ss', '00:00:01',  # Time to take the screenshot
            '-frames:v', '1',  # Number of frames to capture
            '-vf', f"drawtext=text='Duration: {duration_str}':x=10:y=10:fontsize=24:fontcolor=white",
            '-q:v', '2',  # Output quality
            '-y',  # Overwrite output files without asking
            output_path
        ]
        try:
            result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            if result.returncode != 0:
                print(f"ffmpeg error: {result.stderr}")
                return None
            return output_path
        except Exception as e:
            print(f"Error generating thumbnail with duration: {e}")
            return None


  


  and it is used like this :

  


  for i, video in enumerate(self.videos):
    video_widget = VideoThumbnailLabel(video.file)
    video_widget.mousePressEvent = lambda event, v=video: self.onThumbnailClick(
        v
    )
    self.layout.addWidget(video_widget, i // 3, i % 3)


  


  I'm facing a problem where I am not able to get the thumbnail if I try to add the duration (I've tested it without the draw filter and worked fine)

  


  I get this error (from the result.returncode) that I'm not able to comprehend :

  


  ffmpeg error: b"ffmpeg version 6.1.1 Copyright (c) 2000-2023 the FFmpeg developers\n  built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)\n  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.1.1_4 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenvino --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon\n  libavutil      58. 29.100 / 58. 29.100\n  libavcodec     60. 31.102 / 60. 31.102\n  libavformat    60. 16.100 / 60. 16.100\n  libavdevice    60.  3.100 / 60.  3.100\n  libavfilter     9. 12.100 /  9. 12.100\n  libswscale      7.  5.100 /  7.  5.100\n  libswresample   4. 12.100 /  4. 12.100\n  libpostproc    57.  3.100 / 57.  3.100\nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/edoardo/Projects/work/test/BigBuckBunny.mp4':\n  Metadata:\n    major_brand     : mp42\n    minor_version   : 0\n    compatible_brands: isomavc1mp42\n    creation_time   : 2010-01-10T08:29:06.000000Z\n  Duration: 00:09:56.47, start: 0.000000, bitrate: 2119 kb/s\n  Stream #0:0[0x1](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)\n    Metadata:\n      creation_time   : 2010-01-10T08:29:06.000000Z\n      handler_name    : (C) 2007 Google Inc. v08.13.2007.\n      vendor_id       : [0][0][0][0]\n  Stream #0:1[0x2](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 1991 kb/s, 24 fps, 24 tbr, 24k tbn (default)\n    Metadata:\n      creation_time   : 2010-01-10T08:29:06.000000Z\n      handler_name    : (C) 2007 Google Inc. v08.13.2007.\n      vendor_id       : [0][0][0][0]\n[Parsed_drawtext_0 @ 0x60000331cd10] Both text and text file provided. Please provide only one\n[AVFilterGraph @ 0x600002018000] Error initializing filters\n[vost#0:0/mjpeg @ 0x13ce0c7e0] Error initializing a simple filtergraph\nError opening output file thumbnail.jpg.\nError opening output files: Invalid argument\n"


  


  I've installed both ffmpeg and ffmprobe in my machine :

  


  ┌(edoardomacbook-air)-[~/Projects/work/tests-scripts]                                                                                                                                   
└─ $ ffmpeg -version && ffprobe -version                                                                                                                                                              2 ⚙ 
ffmpeg version 6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)
configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.1.1_4 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenvino --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
libavutil      58. 29.100 / 58. 29.100
libavcodec     60. 31.102 / 60. 31.102
libavformat    60. 16.100 / 60. 16.100
libavdevice    60.  3.100 / 60.  3.100
libavfilter     9. 12.100 /  9. 12.100
libswscale      7.  5.100 /  7.  5.100
libswresample   4. 12.100 /  4. 12.100
libpostproc    57.  3.100 / 57.  3.100
ffprobe version 6.1.1 Copyright (c) 2007-2023 the FFmpeg developers
built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)
configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.1.1_4 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenvino --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
libavutil      58. 29.100 / 58. 29.100
libavcodec     60. 31.102 / 60. 31.102
libavformat    60. 16.100 / 60. 16.100
libavdevice    60.  3.100 / 60.  3.100
libavfilter     9. 12.100 /  9. 12.100
libswscale      7.  5.100 /  7.  5.100
libswresample   4. 12.100 /  4. 12.100
libpostproc    57.  3.100 / 57.  3.100


  


  Does anyone see the problem ?

  


  ---

  


  P.S. : I know that I havent provided a minimal reproducible example, but since I don't know where the problem lies I didn't want to exclude anything