22 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:48
  FFMPEG stream from python to browser using socketio - sam Newest 'ffmpeg' Questions - Stack Overflow
  I want to show the video on the browser streamed by ffmpeg. Here's the python script which i made but can't find the way to do so since i am not much into javascript. Can anyone help me please ? import socketio import subprocess import uvicorn sio = socketio.AsyncServer(async_mode='asgi', cors_allowed_origins='*') app = socketio.ASGIApp(sio) ⓐsio.event async def connect(sid, environ): await sio.enter_room(sid, 'Streaming') ⓐsio.event async def stream(cid): video_path = (...)
• 08:12
  ffmpeg subtitles filter defaults to Helvetica instead of specified font - Vatsal Joshi Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use a custom font in the subtitles of a video using ffmpeg, but despite my efforts, the font defaults to Helvetica. Here is the code I am using: import ffmpeg import os import tempfile def test_subtitle_font(font_path): # Simple arbitrary video and audio stream video = ffmpeg.input('color=color=black:size=640x360:duration=5', f='lavfi') audio = ffmpeg.input('anullsrc=channel_layout=stereo:duration=5', f='lavfi') # Create arbitrary temp subtitle file with (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 01:52
  avformat/mov: avoid seeking back to 0 on HEVC open GOP files - llyyr git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: avoid seeking back to 0 on HEVC open GOP files ab77b878f1 attempted to fix the issue of broken packets being sent to the decoder by implementing logic that kept attempting to PTS-step backwards until it reached a valid point, however applying this heuristic meant that in files that had no valid points (such as HEVC videos shot on iPhones), we'd seek back to sample 0 on every seek attempt. This meant that files that were previously seekable, albeit with some skipped frames, were not seekable at all now. Relax this heuristic a bit by giving up on seeking to a valid point (...)

21 mai

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:56
  FFMpeg with xfade, 'auto_scale_x' inserted automatically. How to get rid of it? [closed] - userxxxxxxxxx Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to use cuda gpu as below. But ffmpeg keep saying that Impossible to convert between the formats supported by the filter 'Parsed_hwupload_cuda_0' and the filter 'auto_scale_2' [fc#0 ⓐ 0000018ff3ff4e80] Error reinitializing filters! [fc#0 ⓐ 0000018ff3ff4e80] Task finished with error code: -40 (Function not implemented) [fc#0 ⓐ 0000018ff3ff4e80] Terminating thread with return code -40 (Function not implemented)"** *ffmpeg -y -loglevel debug -nostats -hide_banner -init_hw_device cuda=gpu:0 -hwaccel cuda -hwaccel_device gpu (...)
• 06:24
  When I use ffprobe to check a video stream，I get the error below [closed] - dongrixinyu Newest 'ffmpeg' Questions - Stack Overflow
  I came across with a problem when ffprobe and decoding video stream . Here is the log: ffprobe version 6.1.1 Copyright (c) 2007-2023 the FFmpeg developers built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.2) configuration: --enable-gpl --enable-version3 --enable-shared --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libzvbi --enable-libwebp (...)
• 19:45
  I need to cut a batch of MP4 files to exactly a fixed value of 299 seconds [closed] - DruidCtba Newest 'ffmpeg' Questions - Stack Overflow
  I need some help :). I need to trim a batch of MP4 files to exactly 299 seconds, or 4 minutes and 59 seconds, and from what I've seen, ffmpeg can do this for me. I also need to merge them later on, all in batch, the files that were split above. I think two scripts can do this, it shouldn't be too complicated, but reading the ffmpeg documentation, I found it a bit tricky for me haha. The split can have segments like: Original_File_Name_001.MP4, Original_File_Name_002.MP4, and so on. I saw on github that there's a program, LOSSLESSCUT, which is great (...)
• 16:36
  How do I add a sine pulse to my audio file? I get stuck with an error with the code below: [closed] - imabug Newest 'ffmpeg' Questions - Stack Overflow
  #!/bin/bash # Set paths to your audio files input_file="File (File Path)" output_file="$(dirname "Repeat Item (File Path)")/Repeat Item-watermark.mp3" # Get the duration of the input file in seconds input_duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$input_file") # Run ffmpeg with the updated command ffmpeg -y -i "$input_file" -filter_complex " sine=frequency=438:duration=0.1,volume=12dB[beep]; aevalsrc=0:d=0.9[silence]; [beep][silence]concat=n=2:v=0:a=1[beep_pulse]; [beep_pulse]aloo
• 14:12
  Can av_freep() be replaced directly with the following implementation? - leafe Newest 'ffmpeg' Questions - Stack Overflow
  After reviewing the implementation of av_freep(void* arg) in the FFmpeg documentation, I have some questions. Specifically, can its code be simplified to the following form? FFmpeg Implementation: void av_freep(void* arg) void* val; memcpy(&val, arg, sizeof(val)); memcpy(arg, &(void*) NULL , sizeof(val)); av_free(val); my version: void av_freep(void* arg) free(*arg); *arg = (...)

Piwik http://piwik.org/

• 23:27
  B2B Marketing Attribution Guide: How to Master It in 2024 - Erin Piwik
  The last thing you want is to invest your advertising dollars in channels, campaigns and ads that don’t work. But B2B marketing attribution — figuring out which marketing efforts drive revenue — is far from easy. With longer sales funnels and multiple people from the same company involved in the same sales process, B2B (business-to-business) is a different ballgame from B2C (business-to-consumer) marketing. In this guide, we break down what B2B marketing attribution is, how it’s different, which tools you can use to set it up and the best practices. What is B2B marketing attribution? (...) -- terms and conditions, data processing agreement (DPA)

ginger’s thoughts http://blog.gingertech.net/

• 21:48
  SWAY at RFWS using Coviu - silvia ginger’s thoughts
  A SWAY session by Joanne of Royal Far West School. http://sway.org.au/ via https://coviu.com/ SWAY is an oral language and literacy program based on Aboriginal knowledge, culture and stories. It has been developed by Educators, Aboriginal Education Officers and Speech Pathologists at the Royal Far West School in Manly, NSW. Category: Array Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post SWAY at RFWS using Coviu first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Collectors - silvia ginger’s thoughts
  Screencast of how to use the PARADISEC catalog for managing and publishing collections. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Collectors first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Administrators - silvia ginger’s thoughts
  Screencast of how a PARADISEC administrator uses the PARADISEC catalog for managing the consistency of metadata and staying on top of uploaded files. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Administrators first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Users - silvia ginger’s thoughts
  This screencast shows how a user of the PARADISEC catalog logs in and explores the collections, items and files that the archive contains. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Users first appeared on ginger's thoughts.
• 21:48
  Silvia Pfeiffer Live Stream - silvia ginger’s thoughts
  Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post Silvia Pfeiffer Live Stream first appeared on ginger's thoughts.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:18
  Install ffmpeg in to virtual environment - ldg Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to install ffmpeg in order to use it on OpenAI to record videos. I have installed it using brew install ffmpeg but somehow when I compile my code I get the same error, it is like the package is not recognized by my virtualenv where I am working. Error on Python console: raise error.DependencyNotInstalled("""Found neither the ffmpeg nor avconv executables. On OS X, you can install ffmpeg via `brew install ffmpeg`. On most Ubuntu variants, `sudo apt-get install ffmpeg` should do it. On Ubuntu 14.04, however, you'll need to install avconv with `sudo (...)
• 18:29
  play encrypted movies in vlc by decrypting them by ffmpeg "on the fly" - doctor Newest 'ffmpeg' Questions - Stack Overflow
  I would like to play encrypted movies in vlc by decrypting them by ffmpeg like below on macOS. The size of my movie is, say, 200-1000MB. (hundreds of files) My problem is that it is too slow to decrypt; it takes 5mins for 300MB movie before it starts to play. My guess is that ffmpeg first decrypts the whole content of 300MB and then VLC plays it. My question: Is it possible to play the movie "on the fly" while decrypting it? (play the decrypted chunk once it is decrypted, Not wait until the whole movie is decrypted before it plays, so that it starts to play in, say, (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:03
  checkasm: print bench runs when benchmarking - Lynne git.videolan.org Git - ffmpeg.git/rss log
  checkasm: print bench runs when benchmarking Helps make sense of the possible noise in the results. [DH] tests/checkasm/checkasm.c
• 11:03
  checkasm: h264dsp: Avoid out of buffer writes when benchmarking - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  checkasm: h264dsp: Avoid out of buffer writes when benchmarking The loop filters can write before the pointer given to them; the actual test invocations correctly used an offset, while the benchmark calls were lacking an offset. Therefore, when running with benchmarking, these tests could have spurious failures. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/h264dsp.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:12
  the ffmpeg recording does not stop after the test case is successfully executed, - ghufran Newest 'ffmpeg' Questions - Stack Overflow
  I am new to selenium, I want to add screen recording in my test cases, and I am using ffmpeg. The issue i am facing is the recording successfully starts, but it does not stop after the test case is successfully executed. Below is how my code is strcutured: package utilities; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class ScreenRecording private Process ffmpeg; private String outputFilePath; private boolean isRecording; public ScreenRecording(String outputFilePath) (...)
• 14:23
  ffmpeg - data is being "removed" while h264 is being processed by ffmpeg - Laki Newest 'ffmpeg' Questions - Stack Overflow
  I got a file which is created based on messages coming from streaming, all of the "messages" are ending with b'h264\\x00' I got a need to load the data into ffmpeg perform some processing of the data re-attach the data to same "messages" Data is loaded with ffmpeg and saved with ffmpeg - however - ffmpeg removes "part" of the data I have simplified the process and currently I am only loading and saving the data, without any processing, but still - part of the data is being removed I have used several commands - but always, part of my data (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:04
  checkasm: vvc_alf: Limit benchmarking to a reasonable subset of functions - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  checkasm: vvc_alf: Limit benchmarking to a reasonable subset of functions Don't benchmark every single combination of widths and heights; only benchmark cases which are squares (like in vvc_mc.c). Contrary to vvc_mc, which increases sizes by doubling dimensions, vvc_alf tests all sizes in increments of 4. Limit benchmarking to the cases which are powers of two. This reduces the number of benchmarked cases from 3072 down to 18. [DH] tests/checkasm/vvc_alf.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:33
  ffmpeg real-time buffer too full or near too full frame dropped, I even tried increasing rtbufsize. What could be going wrong? - Ali Azlan Newest 'ffmpeg' Questions - Stack Overflow
  We have a software where we capture the stream from the camera connected to the laptop or device using ffmpeg python, ffmpeg .input(video, s='640x480', **self.args) //tried with rtbufsize=1000M (enough I suupose/ also sometimes the error does not occur even on default rtbufsize which is around 3MB) .output('pipe:', format='rawvideo', pix_fmt='rgb24') .overwrite_output() .run_async(pipe_stdout=True) majority of the times when I start the software like the software is still initiating we receive the following error, (...)
• 13:28
  FFmpeg stream extraction modifies subtitles - user18812922 Newest 'ffmpeg' Questions - Stack Overflow
  I have a video with the following ffprobe output: Input #0, matroska,webm, from 'video.mkv': Metadata: title : Video - 01 creation_time : 2021-07-14T02:49:59.000000Z ENCODER : Lavf58.29.100 Duration: 00:22:57.28, start: 0.000000, bitrate: 392 kb/s Chapters: Chapter #0:0: start 0.000000, end 86.169000 Metadata: title : Opening Chapter #0:1: start 86.169000, end 641.266000 Metadata: title : Part A Chapter #0:2: start 641.266000, end 651.359000 Metadata: title : Eyecatch Chapter #0:3: start (...)
• 09:43
  FFmpeg-Python command too long because of drawtext - Xascoria Newest 'ffmpeg' Questions - Stack Overflow
  I have a FFmpeg-Python program that puts subtitles into a video, pseudocode below: for i in range(10000): video= video.filter( 'drawtext', fontfile=FONT_FILE, text=cur_string, x='(w-text_w)/2', y='(h-text_h)/2', fontsize=FONT_SIZE, fontcolor=FONT_COLOR, borderw=2, bordercolor=FONT_OUTLINE_COLOR, enable=f'between(t,i,i+1)') video.output(PATH).run() The code above gives the following error: FileNotFoundError: [WinError 206] The filename or extension is too long My questions are: (1) Is (...)
• 11:20
  Issues with Publishing and Subscribing Rates for H.264 Video Streaming over RabbitMQ - Luis Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a project to stream an H.264 video file using RabbitMQ (AMQP protocol) and display it in a web application. The setup involves capturing video frames, encoding them, sending them to RabbitMQ, and then consuming and decoding them on the web application side using Flask and Flask-SocketIO. However, I am encountering performance issues with the publishing and subscribing rates in RabbitMQ. I cannot seem to achieve more than 10 messages per second. This is not sufficient for smooth video streaming. I need help to diagnose and resolve these performance (...)
• 09:18
  How can I get decoded frames, which I sent into GPU, can i get them from GPU in rgb - Владислав Сапожник Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg.av_hwframe_transfer_data to sent decoded frames into GPU, but i can not get them again in another good format. I try to change my shaders, use av_hwframe_transfer_get_formats but it is not working!dfghkdsfiuhsgiherghoeirughoighweroigjoiwejgoiwrjgjeoijgoiewgoheroighoieqfgoihqeoigheiogieiqrhgihergh2eouirghou2rerhg My code: private static bool _readingComplete = false; private static bool _decodingComplete = false; private static readonly object _lock = new object(); private static Queue packets = new Queue(); private static readonly object (...)
• 06:38
  Find bytes range of webm video for specified segment - M2sh Newest 'ffmpeg' Questions - Stack Overflow
  I have a Video in webm format (like video.webm the duration is 60 seconds) I want to get specified segment of video (i.e split video) with http header range (Range: 100-200). In another word: I want to get a section of video (e.g. from second 4 to 12) but I don't want to use any converter like ffmpeg. I want to send http request to server and get specified range of webm file. Can I use this method (http range header)?  (...)
• 05:10
  FFMpeg with cuda, 'auto_scale_x' inserted automatically. How to get rid of it? - userxxxxxxxxx Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to use cuda gpu as below. But ffmpeg keep saying that Impossible to convert between the formats supported by the filter 'Parsed_hwupload_cuda_0' and the filter 'auto_scale_2' [fc#0 ⓐ 0000018ff3ff4e80] Error reinitializing filters! [fc#0 ⓐ 0000018ff3ff4e80] Task finished with error code: -40 (Function not implemented) [fc#0 ⓐ 0000018ff3ff4e80] Terminating thread with return code -40 (Function not implemented)"** *ffmpeg -y -loglevel debug -nostats -hide_banner -init_hw_device cuda=gpu:0 -hwaccel cuda -hwaccel_device gpu (...)
• 03:55
  NodeJS : Fail to write byte array input from webcam to ffmpeg spawn process - Thanesh Prabaghan Newest 'ffmpeg' Questions - Stack Overflow
  I'am using NodeJS server to display a html page which has webcam option. Once user visited to my NodeJS server, it will serve html page. User can allow webcam option and see webcam view on the page. In the backend, I send webcam stream (byte array) using socket.io. I receive byte array successfully in backend with the help of socket.io. BUT MY PROBLEM IS, I can't pipe this byte array to the ffmpeg spawn process. I don't know how to properly pipe this data to the ffmpeg. Once it done, all my problem will be solved. On the other side, I have node-media-server as RTMP server (...)
• 03:52
  ffmpeg - transcoding.c - why the last packet is discard - itisyang Newest 'ffmpeg' Questions - Stack Overflow
  Using ffmpeg examples transcoding.c. (https://github.com/FFmpeg/FFmpeg/blob/release/4.1/doc/examples/transcoding.c) This is read by ffprobe.exe (ffprobe.exe -i test.mp4 -show_packets) [PACKET] codec_type=video stream_index=0 pts=162000 pts_time=1.800000 dts=162000 dts_time=1.800000 duration=18000 duration_time=0.200000 size=238317 pos=2285176 flags=__ [/PACKET] [PACKET] codec_type=video stream_index=0 pts=180000 pts_time=2.000000 dts=180000 dts_time=2.000000 duration=18000 duration_time=0.200000 si -- https://github.com/FFmpeg/FFmpeg/blob/release/4.1/doc/examples/transcoding.c

20 mai

Piwik http://piwik.org/

• 21:38
  B2B Customer Journey Map: A Quickfire Guide for Growth - Erin Piwik
  What is a company’s biggest asset? Its product? Its employees? Its unique selling proposition? More and more people are recognising it’s something else entirely: your customers. Without your customers, your business can’t exist. Nearly 77% of B2B buyers found the buying process too complicated. With more competition than ever, it’s crucial you provide the best possible experience for them. That’s where your customer journey comes in. If you’re in the B2B space, you need to know how to map out the journey. By building a B2B customer journey map, you’ll be able to analyse the weak spots in the (...) -- terms and conditions, data processing agreement (DPA)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:53
  How to speed-up ffmpeg encoding for the 'qtrle' codec - userxxxxxxxxx Newest 'ffmpeg' Questions - Stack Overflow
  Need you guys help for that I'm facing kinda limit of performance to encode clips with the codec 'qtrle'. In short, Is there GPU option or technic for the qtrle encoding by GPU? Can I get ANY of technic for qtrle? Does NVMe m.2 upgrade helps performance for ffmpeg concat and encoding? (Currently SKHynix P41 M.2 1TB on PCIe 4 board) (Several multiple times of re-encoding betewwen clips again again again in one loop, so that I cannot use h254 (...)
• 19:50
  Could not find ffmpeg executable, tried "/srv/linux-x64/ffmpeg" - Alan Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to run my docker image on AWS EC2 Instance. However, I am having a trouble with the image file. When I run a task in AWS ECS, it says: Could not find ffmpeg executable, tried "/srv/linux-x64/ffmpeg", "/srv/app/node_modules/ⓐffmpeg-installer/linux-x64/ffmpeg" and "/srv/app/node_modules/ⓐffmpeg-installer/linux-x64/ffmpeg" This is my Dockerfile: FROM node:latest as server WORKDIR /srv/app COPY ./server/package*.json ./ RUN apt-get update && apt-get install -y 'ffmpeg' RUN npm install COPY ./server . RUN npm run (...)
• 16:15
  Is there a way to change the ffplay playback speed while running - richjhart Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to modify ffplay 7.0 to allow us to modify the playback speed while running. Our use-case only involves basic video-only mp4 files. We can set the playback speed with something like the following: ffplay -i ..\\Video\\SampleVideoLong.mp4 -vf "setpts=5.0*PTS" -loglevel debug -sync video But I don't know how to change that option "live" (note if I don't choose -sync video, it gets very laggy - but that's fine as our use-case is video only. I have tried the following (with just a fixed rate at the moment): static double l_CurrentSpeed = (...)
• 12:34
  Render YUV frame using OpenTK [closed] - dima2012 terminator Newest 'ffmpeg' Questions - Stack Overflow
  my window Im trying to render YUV AVFrame, that i get from camera using OpenTK, im creating a rectangle and trying to apply a texture to it, but it doesnt work. Here is my window class using OpenTK.Graphics.Egl; using OpenTK.Graphics.OpenGL4; using OpenTK.Windowing.Common; using OpenTK.Windowing.Desktop; using OpenTK.Windowing.GraphicsLibraryFramework; using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading; using (...) -- my window
• 15:20
  ffmpeg: Render a two-pass MP4 timelapse video from a glob of JPEG images - algalg Newest 'ffmpeg' Questions - Stack Overflow
  In bash on an Ubuntu 22 LTS system, I have this line to make a timelapse video file from hundreds of collected JPEG images in a folder. ffmpeg -r 25 \\ -pattern_type glob -i "/some/path/input/*.jpg" \\ -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" \\ -pix_fmt yuvj420p -preset veryslow -qp 0 \\ -movflags +faststart \\ "/some/path/output/render.mp4" The input JPEGs are 4K, so the resulting video file in that same resolution, and at high quality (which is desired), renders to a very large video file (~250GB). Through trial and error, I've needed to add (...) -- this one
• 13:48
  Amplification of recorded audio in flutter app using FFMPEG not working correctly - Noman khanbhai Newest 'ffmpeg' Questions - Stack Overflow
  In my app I need to record audio and send it to server, server then sends the file to a hardware using mqtt and then file gets played on the hardware. I am using flutter to build app and using record 5.0.5 package for audio recording and for amplification ffmpeg_kit_flutter 6.0.3 package to do the amplification. The issue is it doesnt seems like there is much change in amplitude, I used different values for amplification factor but audio remains same. Here is the code for amplification Future? amplifyAudio( String inputPath, String outputPath) async // Build (...)
• 11:12
  Implement video playback using NodeJS, FFMPEG and HLS.JS - JayEm Newest 'ffmpeg' Questions - Stack Overflow
  I have RTSP stream coming from camera, which is converted to fragmented mp4 using FFMPEG. It is stored in a folder. Also manifest.m3u8 file is created using FFMPEG. I am using Hls.js player on frontend for playing the video, also using a time slider for seeking forward and backward according to timestamp on time slider. Need to dynamically generate moov file. My question is how do I implement above scenario on backend using NodeJS? I'm new to Video domain so please help. Thanks in advance. expected result should be when a user clicks on time slider on a specific (...)