164 articles

31 octobre

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

19:09
Spring content + MPD manifest and Dash.js player - Iupa Newest 'ffmpeg' Questions - Stack Overflow

I'm total newbie to video content from web, however I was curious how those things work actually, and I found so far that for web pages there are already js libs which firstly customize the video html tag to support many features like resolution/subtitles/speed etc,secondly they work with specific manifest file as a src for video, it's *.mpd extension and xml format where is described how to play the chunks of video, now in order to generate such manifests I need another libs like ffmpeg that can generate not only manifests but the chunks as well in different resolutions and (...)
15:48
FFMPEG syntax clarification question for the "between" function [closed] - user2571504 Newest 'ffmpeg' Questions - Stack Overflow

I've been using a crop filter script to hold the crop in one place for the first 750 frames, then automate a moving crop to follow some action in the clip. It's working great for chunky moves (5 pixel jumps as shown below): -filter_script:v:0 crop-filter-script.txt crop='1500:1000:100: if(between(n,0,750),100, if(between(n,751,756),105, if(between(n,757,762),110, if(between(n,763,768),115, if(between(n,769,774),120, if(between(n,775,780),125, if(between(n,781,786),130,etc My question is about how "between" is interpreted. (...)
09:58
Calculate VMAF score while encoding a video with FFmpeg - user8071576 Newest 'ffmpeg' Questions - Stack Overflow

I have an ffmpeg version built with VMAF library. I can use it to calculate the VMAF scores of a distorted video against a reference video using commands like this: ffmpeg -i distorted.mp4 -i original.mp4 -filter_complex "[0:v]scale=640:480:flags=bicubic[main];[main][1:v]libvmaf=model_path=model/vmaf_v0.6.1.json:log_path=log.json" -f null - Now, I remember there was a way to get VMAF scores while performing regular ffmpeg encoding. How can I do that at the same time? I want to encode a video like this, while also calulate the VMAF of the output file: ffmpeg -i (...)
02:35
MoviePy write_videofile is very slow - RukshanJS Newest 'ffmpeg' Questions - Stack Overflow

I've seen multiple questions on SO relating with this, but couldn't find a solid answer. The following is my code. async def write_final_video(clip, output_path, results_dir): cpu_count = psutil.cpu_count(logical=False) threads = max(1, min(cpu_count - 1, 16)) os.makedirs(results_dir, exist_ok=True) output_params = "codec": await detect_hardware_encoder(), "audio_codec": "aac", "fps": 24, "threads": threads, "preset": "medium", "bitrate": "5000k", "audio_bitrate": "192k", logger.info(f"Starting (...)

30 octobre

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

07:04
ffmpeg autodetect and cut black bars on video [closed] - some_vasya Newest 'ffmpeg' Questions - Stack Overflow

FILE_SRC="$HOME/some.mp4" CROP=$(ffmpeg -ss 00:00:15 -i "$FILE_SRC" -t 00:00:30 -vsync vfr -vf fps=1/2,cropdetect -f null - 2>&1 | awk '/crop/ print $NF ' | tr ' ' '\\n' | sort | uniq -c | sort -n | tail -1 | awk ' print $NF ') # before converting, need to check fplay -vf "$CROP" # <-- the black stripes remain Question: how to remove black bars in video correctly so that you can watch video on TV without black bars, taking into account the definition of bars? I am interested in a solution using ffmpeg, and not (...)
14:03
Mix two audio streams using ffmpeg in python - Bells2025 Newest 'ffmpeg' Questions - Stack Overflow

I have a code that is written in Typescript that takes in two streams of audio and combines them into one. Below is the TypeScript Code. How can this be implemented in python. We are reading Kinesis Video Streams in real time and we need to achieve the same functionality in python. I'm able to pipe input and pipe output for one stream. But here they are using multiple pipes which I'm not sure how to achieve in python. Any help would be appreciated. const leftStream = await getKvsStream(`vd-$callId-AGENT`); const rightStream = await (...)
14:19
ffmpeg - re-encode frame range with two frame per seconds - lucky1928 Newest 'ffmpeg' Questions - Stack Overflow

I would like to re-encode a video from frame 200 to 300, the output video frame rate change to 2fps. I saw some suggestion to use -ss but the unit for it is duration, can we use frame number instead? ffmpeg -y -ss 5 -i test.mp4 -frames:v 100 out.mp4
15:02
How can I play an MPG file using Electron on windows without converting it? - Indy Singh Newest 'ffmpeg' Questions - Stack Overflow

I am trying to play MPG files in an Electron app on Windows. The files contain mpeg1 encoded video. I am using the video element. I can play MP4 files, but the MPG files do not play. One requirement is to be able to play the video from some arbitrary start time. Electron uses the Chrome engine to render output. Google Chrome app also cannot play MPG files. Electron uses ffmpeg.dll to play the video file. As far as I can tell ffmpeg.dll contains the mpeg1 decoder, but the video element does not appear to make use of it. I know I can convert the video before playing, however (...)
13:07
Use ffmpeg to convert .exr to .hdr environment map - dubious Newest 'ffmpeg' Questions - Stack Overflow

There are several .exr environment maps at https://svs.gsfc.nasa.gov/4851/ I want to convert one of these .exr files into an .hdr environment map (RGBE / Radiance HDR). The command: ffmpeg -i starmap_2020_4k.exr starmap_2020_4k.hdr Gives the following error: Unable to find a suitable output format for 'starmap_2020_4k.hdr' starmap_2020_4k.hdr: Invalid argument Most search results are concerned with using .exr to create HDR videos. Does ffmpeg support such a conversion? What other parameters are (...) -- https://svs.gsfc.nasa.gov/4851/
09:10
Playback / recording problems - Wessiez Newest 'ffmpeg' Questions - Stack Overflow

The code I'm working on gives me some errors. This results in frame lost when recording. The overview: A video is paused in the first frame. When the motion sensor is detected the video is playing a scary scene. After that it pauses again on the first frame. At the same time when motion is detected the camera starts recording the reaction of the poeple watching the scary scene. This is my code: from gpiozero import MotionSensor from time import sleep from picamera2 import Picamera2 from picamera2.encoders import H264Encoder from picamera2.outputs (...)
07:18
FFMPEG m3u8 video download from login required site - Nirob Saju Newest 'ffmpeg' Questions - Stack Overflow

I am trying to download an m3u8 video using FFmpeg from a site that requires login to access the content. When inspecting the Network tab in Chrome DevTools, I see that the response for the /k/timestamp file is encrypted. I have identified some JavaScript files that seem to handle the decryption, and I need help extracting or decoding the AES key used for this encryption. m3u8 video link: https://qcdn.spayee.in/spees/w/o/6220ccd30cf263f8af9067d0/v/63e4f548e4b0eefe383262fb/u/66ed03d201d3836b2a2e9a14/t/563072098a6027b88583b67efb5d3662/p/assets/videos/6220ccd30cf263f8af9067d0/2023/02/09 -- https://qcdn.spayee.in/spees/w/o/6220ccd30cf263f8af9067d0/v/63e4f548e4b0eefe383262fb/u/66ed03d201d3836b2a2e9a14/t/563072098a6027b88583b67efb5d3662/p/assets/videos/6220ccd30cf263f8af9067d0/2023/02/09/63e4f548e4b0eefe383262fb/hls_500k_.m3u8, https://qcdn.spayee.in/spees/w/o/6220ccd30cf263f8af9067d0/v/63e4f548e4b0eefe383262fb/u/66ed03d201d3836b2a2e9a14/t/b4a8d7afda4fbc89a2dc30762bc176db/p/assets/videos/6220ccd30cf263f8af9067d0/2023/02/09/63e4f548e4b0eefe383262fb/k/timestamp, https://d502jbuhuh9wk.cloudfront.net/static/files/hls.324013256245304581.min.js, https://drive.google.com/file/d/1HBm_ykS7UVSaY6zyF4G1_RJb9IdgA32W/view?usp=sharing

29 octobre

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

19:07
FFmpeg: Merge two videos using a transparent frame for the overlay video [closed] - Major West Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to overlay a video with another one that I'd like to place in the upper left corner and surround it with a transparent (bubble-)border using a png-file. The following milestones I've already achieved: Placing the bubble at the right spot in the main video, retaining the transparency effect ffmpeg -i main.mp4 -loop 1 -i bubble.png -filter_complex "[1]format=yuva420p,fade=in:st=0:d=5:alpha=1[pip]; [0][pip]overlay=100:100:shortest=1" -c:v libx264 output_1.mp4 Placing the overlay video inside the bubble-border ffmpeg -y (...)
01:04
How to encode jpeg images to H264 very fast (transform images to video) - Paul Newest 'ffmpeg' Questions - Stack Overflow

I have 30 JPEG images (.jpg) at a resolution of 480 x 640. Each image takes aboout 20KB (all of them takes about 600KB). I am using FFmpeg command to encode these images into a video in H264 format. I need this to be done very fast - about 1 second. Using the classic command: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -r 30 video.mp4 takes about 90 seconds. After adding -preset ultrafast: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -preset ultrafast -r 30 video.mp4 the (...)

28 octobre

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

21:24
Picture-in-Picture overlay skips forward in time when input video orientation changes - Macster Newest 'ffmpeg' Questions - Stack Overflow

On my website I can record and stream a video to my server using javascript. The video is then encoding in realtime using FFMPEG. Additionally there is a second video injected as picture-in-picture. For some reason, when using a mobile phone for recording and the phone is rotated into landscape mode, the picture-in-picture video will jump forward in time. It's always about half the time that had already passed. This happens on each orientation change. The video file for the picture-in-picture is not edited by code at any time, so I assume this has to be a FFMPEG (...) --
20:56
The GStreamer custom plugin's _transform_frame_ip function is not working [closed] - Amiya Newest 'ffmpeg' Questions - Stack Overflow

I have created a custom GStreamer plugin named brightness I checked it with the gst-inspect-1.0 and gst-launch-1.0 commands and am able to get video output. I used the following command: gst-launch-1.0 filesrc location=sample-15s.mp4 ! decodebin ! videoconvert ! video/x-raw,format=RGB ! brightness brightness=1.0 ! videoconvert ! vp8enc ! webmmux ! filesink location=capture1.webm Codebaselink: link In the codebase, I am setting all data to 0, so I expect a black video in the output file, capture1.webm. However, I'm getting the same video as the input. I also added a (...) -- link
04:22
Black/Empty frames at beginning of video file when file Cut using FFmpeg [closed] - d0tb0t Newest 'ffmpeg' Questions - Stack Overflow

I am cutting a video using ffmpeg and facing the Black/Empty frame at the start issue. When Codec Copy - -y -hide_banner -ss 0:1:0 -i file:///private/var/mobile/Containers/Data/PluginKitPlugin/94588A94-C451-426E-9E9C-A7555B6E7C25/tmp/trim.EC876F92-04BE-41F8-ADF3-8CFC84669908.MOV -to 0:1:33 -t 0:0:33 -vcodec copy -acodec copy -avoid_negative_ts make_zero -async 1 file:///var/mobile/Containers/Data/Application/728D5FED-5E6B-4A37-8DE4-E63E47B06DF9/Documents/FILES/FileCopy.mov When Re-Encoding - -y -hide_banner -ss 0:1:0 -i (...)
11:38
Fast splitting of video into chunks of 'x' frames [closed] - Fiori Newest 'ffmpeg' Questions - Stack Overflow

I am trying to split a video into chunks of 1000 frames each (it has to be done at frame level). I am currently using the opencv library, but it is very slow. It takes half an hour to split an 1-hour video into these equally-sized chunks. This is the function I am currently using: def split_video(video_path, output_dir, frames_per_chunk=1000): cap = cv2.VideoCapture(video_path) fps = cap.get(cv2.CAP_PROP_FPS) frame_count = 0 chunk_count = 0 frames = [] # Create output directory if it doesn't exist if not (...)
10:08
FFprobe reading incorrect resolution value despite players rendering it correctly - Boehmi Newest 'ffmpeg' Questions - Stack Overflow

I'm creating a video from a stream with the help of FFMPEG and I also use FFPROBE to gather information for use on a status page like resolution, codecs et cetera. When FFProbe parses my video for information, I get a resolution value of 544x576 (almost a square!), but an aspect ratio of 16:9. These values are consistent on both the input stream and my saved video. When I watch the video in the standard HTML5 Player, VLC or FFPLAY however, I get a video with the proportions of 16:9 and a resolution (measured using an image editing program) of 1024x576 (...)
10:53
Video Frame-by-Frame Deraining with MFDNet in Python - JimmyHu Newest 'ffmpeg' Questions - Stack Overflow

As this CodeReview question mentioned, I am trying to modify the code to process frame-by-frame rain streaks removal in a video. FFmpeg package is used in this code. import argparse import os import time import cv2 import ffmpeg import numpy as np import torch from skimage import img_as_ubyte from torch.utils.data import DataLoader from tqdm import tqdm import utils from data_RGB import get_test_data from MFDNet import HPCNet as mfdnet def process_video_frame_by_frame(input_file, output_file, (...)
02:33
ffmpeg debug experience consult - AQ Q Newest 'ffmpeg' Questions - Stack Overflow

When using the avfilter_graph_create_filter function, I encountered a return value of -1414549496. I know this means invalid parameter. The current project environment does not support breakpoint debugging for the FFmpeg API. I would like to know what good debugging strategies to use when using these functions. The code block is as follows AVFilterContext *bufferScr_ctx=NULL; AVFilterContext *bufferSink_ctx=NULL; char args[256]=0; //During testing args = (...)

27 octobre

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

22:51
Subtitle Overlay Isn't Working, how do I fix it? [closed] - michael tan Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to make a program to create clips with subtitles, but instead of the overlaid subtitles syncing with the clip, they just start from the beginning of the movie. import subprocess from moviepy.editor import VideoFileClip def parse_srt(srt_file): """Parse the SRT file and return a list of subtitles with their timestamps.""" subtitles = [] with open(srt_file, 'r') as f: content = f.read().strip().split('\\n\\n') for entry in content: lines = entry.split('\\n') if len(lines) >= 3: index = (...)
22:03
PHP convert any video to MP4 using ffmpeg - Dilak Newest 'ffmpeg' Questions - Stack Overflow

I have a website in which I allow users to upload videos. But with the HTML5 tag video, only MP4 videos are allowed So, I want to convert any type of videos that the users upload to MP4 and then add the path in my database. I tried something, changing the file extension to MP4 but it didn't work. I've read something about ffmepg but I can't figure out how to use it. Here is my PHP script where I change the file extension and then add the path in my data base, please how can I convert the video correctly, what should I add/change? <?php (...)
10:18
How to share video stream to WSL2 while ffmpeg? [closed] - 笑先生 Newest 'ffmpeg' Questions - Stack Overflow

Most solutions for using a camera in WSL are to build your own WSL kernel. I have realized it with the steps mentioned in Capturing webcam video with OpenCV in WSL2 However, it's complicated and time-consuming. I want to realize it by sharing video streaming. Share method Step1: Run the command below on Windows to check all the camera devices. I see an integrated camera "Integrated Webcam" (video) in the output. ffmpeg -list_devices true -f dshow -i dummy Step2: Check the IP of Ethernet adapter vEthernet (WSL). In my computer, it's 172.24.176.1 (...)

26 octobre

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

10:17
FFmpeg hevc rtsp stream decoding with frame loss [closed] - QBRT Newest 'ffmpeg' Questions - Stack Overflow

I need to decode my rtsp stream. When i`m using default HEVC and have some corrupted frames, my screen looks like this: Corrupted frame using HEVC, Grey image. But instead of this, I want to have a corrupted picture with pixels issue, like this: Same corrupted frame, but using HEVC_QSV. m_codec = avcodec_find_decoder(m_videoCodecParameters->codec_id); if (!m_codec) qCritical() << "Cannot find decoder."; cleanUp(RtspStream::StreamStatus::Failed); return; m_videoCodecContext = (...) -- Corrupted frame using HEVC, Grey image, Same corrupted frame, but using HEVC_QSV
23:35
MJPEG decoding is 3x slower when opening a V4L2 input device [closed] - Xenonic Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to decode a MJPEG video stream coming from a webcam, but I'm hitting some performance blockers when using FFmpeg's C API in my application. I've recreated the problem using the example video decoder, where I just simply open the V4L2 input device, read packets, and push them to the decoder. What's strange is if I try to get my input packets from the V4L2 device instead of from a file, the avcodec_send_packet call to the decoder is nearly 3x slower. After further poking around, I narrowed the issue down to whether or not I open the V4L2 device at (...) -- example video decoder, ,
18:38
Download a part of youtube video using a powershell script - Nguyễn Đức Minh Newest 'ffmpeg' Questions - Stack Overflow

I'm writing this Powershell script: $URL = "https://www.youtube.com/watch?v=KbuwueqEJL0" $from = 00:06:15 $to = 00:09:17 $cmdOutput = (youtube-dl --get-url $URL) ffmpeg -ss $from -to $to -i -ss $from -to $to -i output.mkv This script's purpose is to download a part of a Youtube video. I've set the variable $URL to specify the Youtube URL, while $from and $to is the start and end time of the part I want to download. $cmdOutput is used to output the stream URL. The output would have two lines: the first one is the URL for the (...)
13:17
How to overlay only part of a video using ffmpeg or a similar tool (not the full frame) [closed] - velw Newest 'ffmpeg' Questions - Stack Overflow

I have two videos (let's say 1.mp4 and 2.mp4). I would like to overlay only the top-right quarter of 2.mp4 onto 1.mp4. The output would be a single video with the content from 1.mp4 in the top left, bottom left and bottom right, and the content from 2.mp4 in the top right. (To be clear, I don't mean shrinking anything. The output would show only three quarters of the frame from 1.mp4 and only one quarter of the frame from 2.mp4) Is it possible to do this with ffmpeg or something (...)
10:58
gcc: Undefined Reference Error - jamie_y Newest 'ffmpeg' Questions - Stack Overflow

I would like to use a function 'ff_load_image' defined in ffmpeg/libavfilter/lavfutils.h. program.c #include "../ffmpeg/libavfilter/lavfutils.h" int main () uint8_t* data; int linesize, width, height, log_ctx; int i = ff_load_image(&data, &linesize, &width, &height, AV_PIX_FMT_RGB24, "blue.jpg", &log_ctx); Running gcc -I$HOME/ffmpeg/include program.c -L$HOME/ffmpeg/lib -lavfilter -lavcodec -lavutil gives undefined reference errors. program.c: In (...)

25 octobre

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

11:16
ffmpeg not using wildcard properly from batch script [closed] - timonsku Newest 'ffmpeg' Questions - Stack Overflow

What I want to do is actually super simple and is working just fine if executed from within the cmd window, though it does not work when used within a batch script. The following command would normally get all .png files with the pattern anim_xxxx.png (%04d stands for 4 numbers in ffmpeg). ffmpeg -f image2 -i anim_%04d.png -vcodec mjpeg -q:v 0 -r 25 foo.avi Now the error I get is with the wildcard for my image sequence and I have no clue what the problem is. Using another wildcard like * gives me the same error. [image2 ⓐ 000000000033e8c0] Could (...)
14:49
How can I install ffmpeg to my docker image [closed] - n179911 Newest 'ffmpeg' Questions - Stack Overflow

I have setup a docker image in my Windows 10 Machine. Can you please tell me how can I install ffmpeg to that docker image?
15:57
Linkedin API video split upload - Natalia Newest 'ffmpeg' Questions - Stack Overflow

I'm working on Linkedin api integration in next.js app. Short videos I upload successfully, the problem is with video splitting. My finction split video if necessary and upload it to temp folder. I use ffmpeg from 'fluent-ffmpeg'; export async function splitVideoToTemp(fileName: string): Promise const inputPath = path.join(process.cwd(), 'tmp', 'input', fileName); ensureFolderExists('chunks'); const outputDir = path.join(process.cwd() + '/tmp/chunks'); const bytes = 4194303; await (...)
06:49
Increasing CPU usage over time in FFmpeg with Widevine DRM stream - nabil fernandez kiker Newest 'ffmpeg' Questions - Stack Overflow

Increasing CPU usage over time in FFmpeg with __memset_avx2_unaligned_erms while processing DRM .mpd streams I'm facing a problem where CPU usage gradually increases when using FFmpeg to process a DRM-protected DASH stream (.mpd with Widevine encryption). Initially, the CPU usage is low, but after around 2 hours, the usage doubles, and it keeps increasing over time. I used perf to analyze what's happening, and this is what I see after a few hours: Overhead Shared Object Symbol 25.57% ffmpeg [.] __memset_avx2_unaligned_erms 9.28% ffmpeg [.] aes_encrypt (...)
01:38
How do I fix the "Packet mismatch -92141241 11 214124" error in FFmpeg? - Sacher Newest 'ffmpeg' Questions - Stack Overflow

How do I fix the "Packet mismatch -92141241 11 214124" error . I'm going to answer my own question, because the phrase packet size mismatch comes up regularly in posts relating to ffmpeg, but I've nowhere seen a satisfactory solution to it. My command is : ffmpeg -rw_timeout 1000000 -i rtmp://ip/appName/StreamName -vn -ar 16000 -ac 1 -f segment -segment_format wav -segment_time 3 %d.wav The error is : [segment e X5b4a87e55e0 Upening I.wav for writing [segment ⓐ Øx5634a87e53e0] Opening '2.wav' for writing [segment (...)

24 octobre

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

17:50
Significantly different scores when calculating VMAF for the whole video vs individual frames [closed] - YG1992 Newest 'ffmpeg' Questions - Stack Overflow

Suppose i have a raw video 'encoded_raw.yuv' and 'original_raw.yuv' on YUV420p. I am getting significantly different results when im calculating VMAF using both methods Method 1 $ ffmpeg -s widthxheight -pix_fmt yuv420p -i .\\encoded_raw.yuv -s widthxheight -pix_fmt yuv420p -i .\\original_raw.yuv -lavfi libvmaf=log_path=vmaf_logfile.json:log_fmt=json -f null - versus Method 2: extracting the png out of a single frame and computing the VMAF score for the individual frame $ ffmpeg -video_size widthxheight -i ./encoded_raw.yuv -vf select=eq(n\\,1) (...)
01:36
ffmpeg - need help removing motion trails appearing on moving objects [closed] - Patrick Newest 'ffmpeg' Questions - Stack Overflow

Need some guidance. I'm not much of a unix guy and I know very little about ffmpeg. Trying to stream a handful of cameras to YT. It's working but this screenshot shows the results. It's not constant, it comes and goes. I'll provide the ffprobe for one of the cams as well as the command line I am using. ffprobe rtsp://5fca316e7c40f.streamlock.net:1935/live-secure/M070EBIPC-21-LQ.stream Input #0, rtsp, from 'rtsp://5fca316e7c40f.streamlock.net:1935/live-secure/M070EBIPC-21-LQ.stream': Metadata: title : (...) -- this screenshot

23 octobre

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

09:53
ffmpeg -vf unable to parse value as image size [closed] - Dustin Jack Newest 'ffmpeg' Questions - Stack Overflow

im trying to use **ffmpeg ** for my python project I want to put a .srt file on the video I have here's the command i've used command = [ 'ffmpeg', '-hwaccel', 'cuda', '-i', input_video, '-vf', f"subtitles=subtitles_file", '-c:a', 'copy', # Copy the audio stream output_video ] subprocess.run(command, check=True) and onced I run it. It outputs [Parsed_subtitles_0 ⓐ 000001717850c580] Unable to parse option value "subtitles.srt" as image (...)
21:59
Is it possible to add a border around the box under the text for drawtext? [closed] - Nick Newest 'ffmpeg' Questions - Stack Overflow

I got the following command that adds an overlay with red text on a white box. How do I add a black border around the white box? ffmpeg -i "input.mp4" -vf "drawtext=textfile='./text.txt':x=(w-text_w)/2:y=h-th-10-150:font='Arial':fontsize=60:fontcolor=red:box=1:boxcolor=whiteⓐ1:boxborderw=25:enable='between(t,0,3)'" -c:a copy "output.mp4"
18:25
FFMPEG - How to stream to rtmp server and output to SDL window simultaneously [closed] - Việt Thắng Nguyễn Newest 'ffmpeg' Questions - Stack Overflow

I would like to produce a live RTMP stream and at the same time stream the video to SDL, but I can't seem to get that to work. I've tried with -tee but it did not work. import subprocess # Define RTMP URL and Mirabox device inputs rtmp_url = "rtmp://localhost/live/stream" video_device = "video=USB3.0 Capture" audio_device = "audio=USB3.0 Capture" # FFmpeg command to stream to RTMP and display locally using SDL ffmpeg_command = [ "ffmpeg", "-f", "dshow", "-i", video_device, # Video input "-f", "dshow", "-i", audio_device, (...)
22:53
Getting Error while trying to download youtube video by using python - Aditya Kumar Newest 'ffmpeg' Questions - Stack Overflow

Code I'm working on a script that allows users to manually select and download separate video and audio streams from YouTube using yt-dlp. The script lists the available video and audio formats, lets the user choose their desired formats, and then merges them using FFmpeg. Here’s the complete code: import yt_dlp import os import subprocess # Function to list and allow manual selection of video and audio formats def download_and_merge_video_audio_with_selection(url, download_path): try: # Ensure the download path exists if not (...)
09:00
PyQt6 6.7.0 - How to fix error: No QtMultimedia backends found - Belleroph0N Newest 'ffmpeg' Questions - Stack Overflow

Problem on Windows 10 and Windows 11 using Anaconda. Here is the full error message for PyQt6=6.7.0: No QtMultimedia backends found. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are available. Failed to initialize QMediaPlayer "Not available" Failed to create QVideoSink "Not available" Installed PyQt6 using a requirements file: PyQt6 PyQt6-WebEngine requests pyserial pynput Here are a couple things I tried: Reroll version back to PyQt6=6.6.1. This results in an error as well: ImportError: DLL (...) -- issue
04:26
FFMPEG mp4 from http live streaming m3u8 file? [closed] - thiago.adriano26 Newest 'ffmpeg' Questions - Stack Overflow

How Can I extract mp4 from http live streaming m3u8 file? I Tried this command below: ffmpeg -i input file -f rawvideo -bsf h264_mp4toannexb -vcodec copy out.mp4 I took this error: [NULL ⓐ 0000000002f07060] Packet header is not contained in global extradata, corrupted stream or invalid MP4/AVCC bitstream Failed to open bitstream filter h264_mp4toannexb for stream 0 with codec copy: I
02:27
Continuous YouTube live stream via ffmpeg keeps failing after a while [closed] - dooleyo Newest 'ffmpeg' Questions - Stack Overflow

I am trying to stream a simple MP4 file as a 24/7 YouTube radio station on repeat from a virtual machine using ffmpeg. It's only a 23 minute (~1GB) file, and runs fine for hours or even days, then hangs up. I've tried on a small Digital Ocean droplet and detaching the ssh session with screen. I am using -c copy so I don't need to process or re-encode anything (even on the smallest droplet, the memory/cpu utilization is negligible, so I know that's not the issue). I have even tried some of ffmpeg's auto-restart options to no avail. Here is the command I'm (...)

22 octobre

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

17:04
Uncompressed image for codec [closed] - den251 Newest 'ffmpeg' Questions - Stack Overflow

I want to test the video codec by giving it an uncompressed 1280x720 image. Where can I find uncompressed images in .raw or .yuv, or another format, but so that ffmpeg can be converted? I found https://media.xiph.org/video/derf/ this site, but there are only videos in .yuv format. -- https://media.xiph.org/video/derf/
15:02
Editing a video by FFMPEG that is not recognized by some video sharing sites [closed] - Ebrahim Mehri Newest 'ffmpeg' Questions - Stack Overflow

I have a video that was made by FFMPEG. The problem is that an old video sharing website named aparat.com does not recognize it. When I open it in Adobe Premiere, without changing any option, the resulting video is OK. I think I should downgrade my used Codecs in order to make it readable. Here's the video that doesn't open: Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) Overall bit rate mode : Variable Overall bit rate : 508 kb/s Writing application : Lavf58.78.100 Format profile : High 4:4:4 (...)

21 octobre

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

19:59
Text on video ffmpeg - Jesper Madsen Newest 'ffmpeg' Questions - Stack Overflow

How can I add text overlay on my video in ffmpeg? i.e. given a video "video1.flv", how can I add "StackOverflow" text during the whole video, positioned in the middle of the screen, with white text and a border?
18:35
Trying to record the screen with pauses (Ctrl-Z and fg): getting audio/video desync: audio still recording after Ctrl-Z - Vitaly Zdanevich Newest 'ffmpeg' Questions - Stack Overflow

this is my script: ffmpeg -f x11grab -video_size 1920x1200 -i :0+0,2640 \\ -f pulse -i alsa_output.usb-GN_Netcom_A_S_Jabra_EVOLVE_LINK_00113735E82E0A-00.analog-stereo.monitor \\ -f pulse -i alsa_input.usb-Focusrite_Scarlett_Solo_USB_Y7D1J3F0A66336-00.HiFi__Mic1__source \\ -filter_complex "amerge" -ac 1 \\ -vf setpts=N/FR/TB \\ -c:v libsvtav1 -preset 6 \\ -c:a libopus \\ ~/record/out/$(date +%Y-%b-%d%a--%H-%M-%S | tr A-Z a-z).webm Is something around -vf (...)
15:10
FFmpeg cannot extract correct first frame - always extract the second frame [closed] - Cai Yu Newest 'ffmpeg' Questions - Stack Overflow

I am on macos Ventura 13.2.1, on Macbook Pro M1Max. The video is number counting animation video. From 2 to 125. The number on first frame is 2. The number on last frame is 125. The number plus one on each frame. You can download the video here. NOTE that: First, you hit space bar to play it in Finder, you can see the first frame of the video is number 2. Second, in professional Video editing software - davinci resolve, on the timeline, you can see the first frame is number 2. Now I try to use FFmpeg to extract the first frame of the video. First (...) -- here
17:17
Pausing a ffmpeg screen capture? - LostXOR Newest 'ffmpeg' Questions - Stack Overflow

I have a script to record my screen using ffmpeg: ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0 -c:v libx264rgb -crf 0 -preset ultrafast video.mkv I tried using pkill -STOP ffmpeg to pause the recording and pkill -CONT ffmpeg to resume it. The command seems to work correctly, pausing the recording process and later resuming it. However on playback, instead of instantly cutting to when I resumed ffmpeg, the video freezes for the duration I pause ffmpeg. Is there a way I can prevent the video from freezing, and instantly cut to when I resume recording? (I (...)
14:03
Download HLS ( HTTP ) Stream video using python - LeDerp Newest 'ffmpeg' Questions - Stack Overflow

I need to download a streaming video(from a URL) using python the command line argument would be: ffmpeg -i URL stream.mp4 I know I can use the subprocess command subprocess.call('ffmpeg -i '+ URL +' stream.mp4', shell=True) Is there any alternative like a API that I can use instead of using subprocess command
13:00
Check if user is in a voice channel discord.py - Max McCarthy Newest 'ffmpeg' Questions - Stack Overflow

I am making a bot that will play sounds in a vc. I have made the code to join the call, play the mp3, then leave the call but when the user is not in a call I get this error: Ignoring exception in command ring: Traceback (most recent call last): File "C:\\Users\\max\\AppData\\Roaming\\Python\\Python39\\site-packages\\discord\\ext\\commands\\core.py", line 85, in wrapped ret = await coro(*args, **kwargs) File "C:\\Users\\max\\OneDrive\\Desktop\\Code\\DiscordBots\\Nokia\\Nokia.py", line 91, in ring channel = ctx.author.voice.channel AttributeError: 'NoneType' object (...)
00:55
How do I convert a 3D SBS dual-fisheye image to 3D SBS dual-equirectangular with only open-source tools? [closed] - Ethan T Newest 'ffmpeg' Questions - Stack Overflow

Canon has released a new 3D VR lens for their RF mount and I recently rented it to see what it's like to work with. Unfortunately, they charge a subscription fee for their conversion software, which I've also found to be inconveniently limited in real-world use cases. Thus I'm interested in an open-source approach to converting the video captured by this lens using something like ffmpeg. The video is dual-fisheye and the Canon tool produces dual-equirectangular side-by-side video. I would like to perform this same conversion in ffmpeg or a similarly-powerful (...) -- 3D VR lens for their RF mount
06:16
ffmpeg fialing with "could not find coded parameters" - Angelo Newest 'ffmpeg' Questions - Stack Overflow

running ffmpeg -i in a C# console app using Process, for certain files, the process gets stuck and runs forever var oInfo = new ProcessStartInfo("ffmpeg.exe", "-i 176d2819-f1da-44eb-b33b-94eb1448194b.mov"); oInfo.UseShellExecute = false; oInfo.CreateNoWindow = true; oInfo.RedirectStandardOutput = true; oInfo.RedirectStandardError = true; string output = string.Empty; StreamReader srOutput = null; //run the process Process proc = Process.Start(oInfo); proc.WaitForExit(); srOutput = proc.StandardError; output = (...)
06:49
Stream sent via FFMPEG (NodeJS) to RTMP (YouTube) not being received - Qumber Newest 'ffmpeg' Questions - Stack Overflow

I am writing a very basic chrome extension that captures and sends video stream to a nodeJS server, which in turns sends it to Youtube live server. Here is my implementation of the backend which receives data via WebRTC and send to YT using FFMPEG: const express = require('express'); const cors = require('cors'); const RTCPeerConnection, RTCSessionDescription = require('ⓐroamhq/wrtc'); const spawn = require('child_process'); const app = (...)
01:30
VScode ffmpeg.dll missing - YMRTZ Newest 'ffmpeg' Questions - Stack Overflow

When I tried to open VScode, I got an error popup saying "The code execution cannot proceed because ffmpeg.dll was not found. Reinstalling the program may fix this problem". Reinstalling VScode solved the issue, but I'm wondering what caused it in the first place, as apparently it's a video/audio file .dll, and I don't know what VScode has to do with it. The error -- The error

20 octobre

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

21:34
Moviepy is unable to load video - Alex Newest 'ffmpeg' Questions - Stack Overflow

Using python 3.11.10 and moviepy 1.0.3 on ubuntu 24.04.1 (in a VirtualBox 7.1.3 on windows 10) I have problems to load a video clip. The test code is just from moviepy.editor import VideoFileClip clip = VideoFileClip("testvideo.ts") but the error is Traceback (most recent call last): File "/home/alex/.cache/pypoetry/virtualenvs/pypdzug-WqasAXAr-py3.11/lib/python3.11/site-packages/moviepy/video/io/ffmpeg_reader.py", line 285, in ffmpeg_parse_infos line = [l for l in lines if keyword in l][index] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^ IndexError: (...)
20:58
How to get accurate output video duration from ffmpeg? [migrated] - Roy Harper Newest 'ffmpeg' Questions - Stack Overflow

Is there a way to get ffmpeg.exe to give the duration of the OUTPUT video? I know how to get a video duration from an input video from ffmpeg. Just look for "Duration: " and parse the HH:MM:SS:XX. Sample output: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf60.3.100 Duration: 00:05:53.24, start: 0.000000, bitrate: 1102 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 854x480 (...)
01:34
Why can't my python project find ffmpeg even though it's installed in the Python library? - Jieyu Zhang Newest 'ffmpeg' Questions - Stack Overflow

I am encountering an issue where my project cannot find ffmpeg, even though it is installed in the Python library. Here are the details: When running the script, I get the following error message: D:\\Python\\Lib\\site-packages\\pydub\\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning) Additionally, I receive this error message when trying to prepare the dataset: from pydub import (...)

19 octobre

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

07:24
How do I download the image with metadata in Python? [closed] - Temp Account Newest 'ffmpeg' Questions - Stack Overflow

I am downloading some images in Python from the Airtable API and am trying to make a slideshow with them using ffmpeg. I download the images: urllib2.urlretrieve(img['url'], "output/images/image_"+str(i)+".jpeg") However, when I run the following ffmpeg command ffmpeg -framerate 4/60 -i output/images/image_%d.jpeg output/out.mp4 I get the following error: ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 13 (Ubuntu 13.2.0-23ubuntu3) configuration: --prefix=/usr --extra-version=3ubuntu5 (...)
16:42
A Windows-compatible C IDE that will be able to compile FFmpeg? - Shimmy Weitzhandler Newest 'ffmpeg' Questions - Stack Overflow

I want to set up an environment on my PC (Win7x64) that I will be able to combine these projects and compile them into one executable: FFmpeg AMV codec tools For this I need an environment that can compile/debug both the above projects (creating a Windows compatible exe). Any ideas? -- FFmpeg, AMV codec tools
13:06
How to compress a video using ffmpeg in python? - user14475704 Newest 'ffmpeg' Questions - Stack Overflow

I made this script for compressing videos in Python 3: import os import sys import subprocess result = subprocess.run('ffmpeg -i output.mp4 -b 800k output.mp4') print(result) When I run the above, some error will come up like System cannot find the file specified : result = subprocess.run('ffmpeg -i output.mp4 -b 800k output.mp4') File "C:\\Program Files\\Python37\\lib\\subprocess.py", line 488, in run with Popen(*popenargs, **kwargs) as process: File "C:\\Program Files\\Python37\\lib\\subprocess.py", line 800, in __init__ (...)

18 octobre

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

21:57
How to build FFmpeg executable for commercial use using Windows? - Xel Naga Newest 'ffmpeg' Questions - Stack Overflow

I'm developing a commercial software and it requires ffmpeg.exe to run properly. I'm aware of the FFmpeg legal page (https://www.ffmpeg.org/legal.html) and want to Compile FFmpeg without "--enable-gpl" and without "--enable-nonfree". However the compilation guide (https://trac.ffmpeg.org/wiki/CompilationGuide) seems neglected because some links lead to 404 pages, and some required programs didn't install properly on my PC, crashed in fact. I tried all the ways to compile but could not succeed. I use Windows 8.1 and I'm not comfortable with minGW, (...) -- https://www.ffmpeg.org/legal.html, https://trac.ffmpeg.org/wiki/CompilationGuide
17:44
Python can't access FFmpeg binary in /data/user/0/com.app.name/files/ in Android Studio - Dudek 3D Newest 'ffmpeg' Questions - Stack Overflow

I'm a beginner in android development (and java). I'm making a hybrid application in java which runs python (using chaquopy). MainActivity.java runs the python script fine, the only problem is that the yt_dlp library that I've used can't access FFmpeg. The FFmpeg binary file (for linuxarm64, I don't think that's the problem) is located in the assets folder (src/main/assets), then it's copied to /data/user/0/com.app.name/files : //FileUtils.java public class FileUtils public static void copyAsset(Context context, String assetName, (...)
13:56
Error initializing FFmpegKit: "TypeError: Cannot read property 'getLogLevel' of null" in React Native - Md Monirozzaman khan Newest 'ffmpeg' Questions - Stack Overflow

I'm developing a React Native application where I need to process videos using the ffmpeg-kit-react-native library. However, I'm encountering an issue during the initialization of FFmpegKitConfig. The error message is: ERROR Error initializing FFmpegKit: [TypeError: Cannot read property 'getLogLevel' of null] Here is my App.js code import React, useState, useEffect from 'react'; import StyleSheet, Text, View, TouchableOpacity, Alert, Dimensions, ScrollView, LayoutAnimation, UIManager, Platform from (...)
07:54
using mediamtx to stream video to browser [closed] - Maximilian Newest 'ffmpeg' Questions - Stack Overflow

I am using rtsp to feed a video stream to mediamtx. I want to display the feed in a browser but always get some errors. I use the following to start mediamtx podman run --rm -it -e MTX_PROTOCOLS=tcp -e MTX_WEBRTCADDITIONALHOSTS=192.168.x.x -p 8554:8554 -p 1935:1935 -p 8888:8888 -p 8889:8889 -p 8890:8890/udp -p 8189:8189/udp docker.io/bluenviron/mediamtx I use this ffmpeg line to feed mediamtx: ffmpeg -i "rtsp://127.0.0.1:10000/test" -f rtsp rtsp://127.0.0.1:8554/feed I can view the feed with ffplay rtsp://localhost:8554/feed ffplay says (...)
07:12
Remove the blur bars around video automatically [closed] - J.Zhao Newest 'ffmpeg' Questions - Stack Overflow

There are so many videos to process, it is not possible to manually obtain the cropping position for each video. So I'm trying to use FFMPEG to crop the clear areas of video automatically. I use following command to get the crop params: input='video.mp4' ffmpeg -i $input -t 1 -vf cropdetect -f null - 2>&1 | awk '/crop/ print $NF ' | tail -1 and: ffmpeg -i video.mp4 -vf "cropdetect=mode=mvedges" -f null - # or ffmpeg -i video.mp4 -vf "blurdetect" -f null - However, the first command only applies to videos with black (...) -- ,
11:36
Is it feasible to dynamically add specific headers to a single page within an Angular SPA application when served from the server? - gokul m Newest 'ffmpeg' Questions - Stack Overflow

I'm concerned that since Angular's routing is handled client-side, this might not be directly possible or is it? I attempted to add headers on my local Angular server as follows: "options": "headers": "Cross-Origin-Embedder-Policy": "require-corp", "Cross-Origin-Opener-Policy": "same-origin" This resulted in CORS errors for all app resources loading from different origins. Given that Angular routers operate client-side, I'm exploring options to achieve server-side rendering for a specific single page. I need to (...)
07:35
how to download m3u8 with ffmpeg? [hls prompts: Unable to open key file skd:xxxxxxx] [closed] - Mam Ghagh Newest 'ffmpeg' Questions - Stack Overflow

There is a m3u8 manifest like: #EXTM3U #EXT-X-VERSION:5 #EXT-X-TARGETDURATION:7 #EXT-X-PLAYLIST-TYPE:VOD #EXT-X-KEY:METHOD=SAMPLE-AES,URI="skd://xxxxxx",IV=0xXXXXXX,KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1" #EXTINF:6, https://someurl.com/index_1_0.ts #EXTINF:6, https://someurl.com/index_2_0.ts ... which is available on https://someurl.com/my.m3u8 So, When I executed ffmpeg command ffmpeg -i "https://someurl.com/my.m3u8" -c copy out.mp4 the following message appeared [hls ⓐ 000002de75f89bc0] Unable (...) -- https://someurl.com/my.m3u8
06:47
FFMPEG randomly gets killed with SIGKILL on fluent-ffmpeg - jaimish11 Newest 'ffmpeg' Questions - Stack Overflow

I'm working on an Electron app with a Node backend and a React frontend. I'm using fluent-ffmpeg to stream data from an external RTSP feed and render the feed on my app. The feed renders and displays fine but it's randomly killed after a few minutes. (sometimes within seconds, it's unreliable) This is the error message I get: Error: ffmpeg was killed with signal SIGKILL I printed out the stderr variable within one of the library's core files and this is the error that is thrown whenever a SIGKILL occurs: [rtsp ⓐ 0x7fc9ad80be00] RTP: missed 1 (...)
06:17
Node fluent-ffmpeg killing process kills server - How to start and stop recorder? - Scorpio Newest 'ffmpeg' Questions - Stack Overflow

I'm using fluent-ffmpeg in a node application. Recording from the screen/camera to an mp4 file. Would like a server request to start and another request to stop recording (links to a web interface - testing some tech with a view to making an Electron App later with it). Starting is fine, but cannot figure out how to stop it. This is the code to start (to run on MacOS): recordingProcessVideo = ffmpeg(`$screenID:none`) .inputFormat('avfoundation') .native() .videoFilters(`crop=$width:$height:$x:$y`) (...)
07:02
FFMPEG - remove the blur bars around video automatically - J.Zhao Newest 'ffmpeg' Questions - Stack Overflow

There are so many videos to process, it is not possible to manually obtain the cropping position for each video. So i'm trying to use FFMPEG to crop the clear areas of video automatically. I use following command to get the crop params. input='video.mp4' ffmpeg -i $input -t 1 -vf cropdetect -f null - 2>&1 | awk '/crop/ print $NF ' | tail -1 and ffmpeg -i video.mp4 -vf "cropdetect=mode=mvedges" -f null - or ffmpeg -i video.mp4 -vf "blurdetect" -f null - However, the first command only applies to videos with black sides, (...) -- ,
07:07
how to download sample-aes m3u8 with ffmpeg? [hls prompts: Unable to open key file skd:xxxxxxx] - Mam Ghagh Newest 'ffmpeg' Questions - Stack Overflow

I am newbie in programming and need help. Story and Question -> I have a m3u8 manifest like: #EXTM3U #EXT-X-VERSION:5 #EXT-X-TARGETDURATION:7 #EXT-X-PLAYLIST-TYPE:VOD #EXT-X-KEY:METHOD=SAMPLE-AES,URI="skd://xxxxxx",IV=yyyyyyy,KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1" #EXTINF:6, https://someurl.com/index_1_0.ts #EXTINF:6, https://someurl.com/index_2_0.ts ... which is available on https://someurl.com/my.m3u8 So, When I executed ffmpeg command ffmpeg -i "https://someurl.com/my.m3u8" -c copy out.mp4 (...) -- https://someurl.com/my.m3u8

17 octobre

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

19:39
Unable to find correct bash syntax for comparing numbers - kali Newest 'ffmpeg' Questions - Stack Overflow

Part of a long script I'm simply trying to compare two numbers, one is constant and the other one is retrieved via ffprobe (The 474 in the error messages is the height found by ffprobe) CURRENT_RES=$(ffprobe -v quiet -select_streams v:0 -show_entries stream=height -of csv=s=x:p=0 "$fn") if ; then echo "leaving preset normal" SLOW_PRESET=("" "") else echo "setting preset to slow" SLOW_PRESET=(-preset slow) fi; produces: /usr/local/bin/startScreen.sh: line 95: ; then I thought may be the inline written 1080 number is (...)
19:51
ffmpeg's concat demuxer parameters to limit segments at outpoint timestamps [closed] - code Newest 'ffmpeg' Questions - Stack Overflow

In order to concatenate video files of matching fps, codec, resolution, time_base (in fact some are segments from same video), ffmpeg concat demuxer (to prevent re-encoding) approach has been used. But ffmpeg did not stop concatenating segments at outpoint time specified in input demuxer text file! (Note: From Python code programmatically via sub-process approach, ffmpeg has been invoked ) input.txt file for concat demuxer contained : ffconcat version 1.0 file 'numbered.mp4' inpoint 2.083333 outpoint 2.166667 (the time stamps provided (...) -- https://filetransfer.io/data-package/F5caZ0xT#link
18:09
Query on ffmpeg's concat demuxer parameters to end segments at outpoint timestamps and retain most properties same as input (fps, time_base etc) - code Newest 'ffmpeg' Questions - Stack Overflow

In order to concatenate video files of matching fps, codec, resolution, time_base (in fact some are segments from same video), ffmpeg concat demuxer (to prevent re-encoding) approach has been used. But ffmpeg did not stop concatenating segments at outpoint time specified in input demuxer text file! (Note: From Python code programmatically via sub-process approach, ffmpeg has been invoked ) input.txt file for concat demuxer contained : ffconcat version 1.0 file 'numbered.mp4' inpoint 2.083333 outpoint 2.166667 (the time stamps provided (...) -- https://filetransfer.io/data-package/F5caZ0xT#link
10:23
Debugging FFMPEG Code (libavformat files breakpoint) - Holy_diver Newest 'ffmpeg' Questions - Stack Overflow

I tried setting up ffmpeg for debugging, a partial success. Been able to setup debug points in top level code but not inside libavformat code files. Any idea how to compile to be able to do so. Setup: ./configure --enable-debug=3 --disable-optimizations --disable-decoder=vp9 --disable-decoder=hevc --enable-nvenc --enable-nvdec --enable-cuda --enable-cuvid --enable-nonfree --enable-gpl --extra-cflags="-I/usr/local/cuda/include" --extra-ldflags="-L/usr/local/cuda/lib64" --enable-shared --enable-libx264 --enable-gpl --disable-stripping make clean make -j8 (...)
05:05
How to combine ~100 video clips with transition using FFMPEG? [closed] - Muhammad Lutfi Rahmawan Newest 'ffmpeg' Questions - Stack Overflow

I've been working on project which involves FFMPEG to process video. The goal is to produce a video from several clips and combine them with transition to each clips. We've succeeded to create video from 20 clips and 19 transitions are applied to merge each clips. But when it comes to a larger amount of clips, say 50, it becomes be failed. The first thing we do is split the original video into several clips based on user selection and this command is successful (log splitting). Then we combine the clips with transition using below command. Here is the sample command of (...) -- (log splitting)
07:58
Is there is any way ffmpeg can remove the blur bars around this video automatically [closed] - J.Zhao Newest 'ffmpeg' Questions - Stack Overflow

I want to use ffmpeg to capture the clear areas of the video, usually the blurred areas of the video filter are above and below the video or left and right. Can ffmpeg fix it? without losing much quality? Notes: The cropped params (such as out_w:out_h:x:y) ares unknown. There are thousands of videos that need to be cropped, and just one is shown here. Expected result: from this: to this: -- ,
00:35
FFmpeg VAAPI: GOP Size Setting Not Applied During Encoding - sun tony Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a video transcoding project using FFmpeg with VAAPI hardware acceleration, and I'm encountering an issue where the gop_size parameter is not being respected during encoding. Despite setting the gop_size to 150 in the encoder context, the output video does not have the expected GOP structure. This problem only occurs when using VAAPI for hardware acceleration—when I switch to software decoding or CUDA, the GOP size is applied correctly. Here’s a simplified version of the relevant code where I set the gop_size: encoder_ctx->gop_size = 150; I'm (...)

16 octobre

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

23:10
ffmpeg avformat_open_input() failed to open a dshow device url containing Chinese Characters - Sang Newest 'ffmpeg' Questions - Stack Overflow

The USB Webcam is OK, but the device I want to use is a "virtual camera" named "无他伴侣(竖屏)", whose video is from the smart phone like Android or iOS. Connect the phone to PC, run an app on the phone, then run a PC client application, which can preview the video. The phone app is called "无他相机", and the PC app is called "无他伴侣", its website is https://www.wuta-cam.com/. I run FFmpeg at the Windows Commandline with the command ffmpeg -list_devices true -f dshow -i dummy, it's OK to list the devices.(in order to display Chinese correctly, run chcp 65001 in advance.) Run the command ffplay -f (...) -- https://www.wuta-cam.com/
12:32
Image overlay on video without using FFmpeg [closed] - Shanthini Michael Newest 'ffmpeg' Questions - Stack Overflow

I am trying to overlay one image at the bottom of the video without using FFmpeg. I am using FFmpeg, but it is taking 10 secs. For bulk process, I need to complete one process within a second. Is there any fast alternatives available? I have tried, Gstreamer, VLC, Moviepy Among all of them FFmpeg is fast, But for bulk process it will not work.
09:31
Video is not compressed with ffmpeg - Pooria Darvishi Newest 'ffmpeg' Questions - Stack Overflow

I wrote a wrapper for JNI in cpp language to compress the video: #include #include #include extern "C" #include #include #include #include #include #include using namespace std; #define LOG_TAG "VideoNative" #define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__) #define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__) #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__) #define FFMPEG_LOG_TAG (...)
10:12
Map streams in ffmpeg based on title (to remove language variant) - MappaM Newest 'ffmpeg' Questions - Stack Overflow

I have a few video files with English audio track and French audio track, because the family wants French and I prefer VO. With ffmpeg I can easily filter all tracks to keep eng and fre, the problem is there are multiple french dialects, one of them being Candian (VFQ). Therefore, with the following input streams: Stream #0:1(fre): Audio: eac3, 48000 Hz, 5.1(side), fltp, 768 kb/s (default) Metadata: title : E-AC3 VFF Stream #0:2(fre): Subtitle: subrip (default) (forced) Metadata: title : FORCED VFF Stream #0:3(fre): Audio: ac3, 48000 Hz, 5.1(side), (...)
10:17
I created a Python code to capture live video using FFmpeg, but the output screen only shows noise - chun3 hyun Newest 'ffmpeg' Questions - Stack Overflow

The code below is Python code that made my computer screen video capture in real time via ffmpeg. When I run the code below, it goes well until a new window named 'Captured Frame' is created. But this 'Captured Frame' window doesn't show the full screen of my computer, and the gray screen is generating a lot of noise. import cv2 import numpy as np import subprocess def frame_capture(): # Set FFmpeg command (capture desired window or area) ffmpeg_command = [ 'ffmpeg', '-f', 'gdigrab', # (...)
05:04
Python yt-dlp and ffmpeg error "merging of multiple formats but ffmpeg is not installed" - T Tea Tie Newest 'ffmpeg' Questions - Stack Overflow

I am using the latest version of yt-dlp with Python 3.9. I am trying to download a youtube video in mp4 format with outputname as the youtubeid.mp4 and with best resolution not more than 4K. This is my Python code: ytid = '4cDqaLxrt6Q' url = 'https://www.youtube.com/watch?v='+ytid output_filename = ytid+".mp4" with YoutubeDL('format': 'bestvideo[height<=?4K]+bestaudio/best', 'output': output_filename) as ydl: ydl.download(url)`#TODO debug FFmpeg and check if outputname is ok (...) -- https://www.youtube.com/watch?v=4cDqaLxrt6Q

15 octobre

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

18:25
How would I dynamically link FFmpeg in a C# Project for use with FFMpegCore? - liamliam Newest 'ffmpeg' Questions - Stack Overflow

So far, I have FFMpegCore working in my project with a ffmpeg.exe dropped into the project directory. This works, but for LGPL license compliance FFmpeg requires dynamic linking: Use dynamic linking (on windows, this means linking to dlls) for linking with FFmpeg libraries.. While I understand the basic concept of dynamic vs static linking, my problem is likely a misunderstanding of how .dlls work and how they apply to C# and .NET. Would it be possible to compile ffmpeg into a single .dll that could be accessed by FFMpegCore cross-platform? From what I can gather in the (...) -- FFMpegCore, Use dynamic linking (on windows, this means linking to dlls) for linking with FFmpeg libraries.
13:49
Concatenate videos with audio and overlay with complex Filtergraph in FFMPEG [closed] - Jamie Shepherd Newest 'ffmpeg' Questions - Stack Overflow

I am new to FFMPEG and trying to get my head around the concepts and the syntax. I have 3 video files that I am trying to concatenate into one file, while overlaying an image on the middle video, all while maintaining the audio. Sadly however there is not many assurances on these files so the resolutions could be different, different audio channels etc. The documentation on the "concat" video filter states that: All corresponding streams must have the same parameters in all segments As such I have tried to use a complex filtergraph to scale all videos to the same (...) -- concat
15:37
ffmpeg -- copy attached cover image (cover.jpg) of video file during encode? [closed] - emk2203 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to encode a video with ffmpeg which has a cover file attached. This cover file should end up in the encoded video as well. I can do this with mkvextract attachments movie.mkv 1 && && mkvpropedit movie_new.mkv --add-attachment cover.jpg. Both old and new show up in mediainfo with the two lines Cover : Yes Attachments : cover.jpg But when I try to integrate this into a ffmpeg command, ffmpeg insists on detecting a second video stream and either dropping it or encoding it as a second video stream which completely confuses the player. (...)
14:01
C++ smart pointers to FFmpeg objects - Elija Newest 'ffmpeg' Questions - Stack Overflow

Can I create and use C++ smart pointers for different pointer types from FFmpeg? "AVCodecContext *" which is used only as a pointer in all functions except deallocation. Alloc: AVCodecContext *avcodec_alloc_context3(const AVCodec *codec); Free: void avcodec_free_context(AVCodecContext **avctx); Use: int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options); Then the smart pointer: std::shared_ptr av_codec_context(avcodec_alloc_context3(av_codec), [](AVCodecContext* (...)
13:17
"Error opening input" error when running ffmpeg via shell script - Roni Yaniv Newest 'ffmpeg' Questions - Stack Overflow

I'm on a macbook running sonoma 14.7. I have the following ffmpeg command which runs just fine by itself in the same folder of the files I need to modify: ffmpeg -i "water-stream-90fps.mp4" -vf "drawtext=text='Frame\\: %frame_num': start_number=1: x=(w-text_w): y=(h-text_h):fontsize=(h*10/100):fontcolor=yellow,drawtext=text='%pts\\:hms':x=0:y=0:fontsize=(h*10/100):fontcolor=yellow" "water-stream-90fps-with-markers.mp4" However, when I try to use it in a shell script by running ./add_markers.sh in the same folder, I get an error. This is the (...)
04:39
Why do file length appears to be longer after using ffmpeg convert HEIC to PNG? - BrinyFish Newest 'ffmpeg' Questions - Stack Overflow

I have been moving all my photos from iphone to my windows PC. Because I don't like to keep all the files in HEIC format, so I used ffmpeg to try to batch convert all the photos from HEIC to PNG. Get-ChildItem *.heic | ForEach-Object ffmpeg -i $_.FullName -map_metadata 0 -q:v 1 "$($_.BaseName).png" File size difference After testing this chatGPT generated code on a small sample set of photos, I realize that the length of the PNG photos are smaller than the length of the HEIC photos. I have always believed that HEIC is the compressed format, which should (...) -- File size difference
03:44
FFMpegCore.Exceptions.FFMpegException: 'ffmpeg exited with non-zero exit-code' - secretply Newest 'ffmpeg' Questions - Stack Overflow

I am looking to retrieve the loudnorm data in JSON format from FFmpeg (using FFMpegCore 5.1.0). This is the code I currently have: await FFMpegArguments .FromPipeInput(new StreamPipeSource(fileStream.OpenReadStream())) .OutputToPipe(new StreamPipeSink(outputStream), options => options.WithCustomArgument("-af loudnorm=print_format=json")) .ProcessAsynchronously(); This is the exception I get, which is similar to this old GitHub issue. System.IO.IOException: 'Pipe is broken.' This exception was originally thrown at this call stack: (...) -- GitHub issue

14 octobre

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

20:36
System.IO.IOException: Pipe is broken error with FFMpegCore library - secretply Newest 'ffmpeg' Questions - Stack Overflow

I am looking to retrieve the loudnorm data in JSON format from FFmpeg (using FFMpegCore 5.1.0). This is the code I currently have: await FFMpegArguments .FromPipeInput(new StreamPipeSource(fileStream.OpenReadStream())) .OutputToPipe(new StreamPipeSink(outputStream), options => options.WithCustomArgument("-af loudnorm=print_format=json")) .ProcessAsynchronously(); This is the exception I get, which is similar to this old GitHub issue. System.IO.IOException: 'Pipe is broken.' This exception was originally thrown at this call stack: (...) -- GitHub issue
20:52
FFMPEG in Android not rendering Arabic characters - Henry Smith Newest 'ffmpeg' Questions - Stack Overflow

I have an Android app that uses FFMPEG to add text overlays onto a mp4 video files. It works fine with a Latin alphabet, but when I try and add Arabic characters as an overlay on the .mp4 file, the output video displays rectangles (assuming unrecognised characters). FFMPEG command example is: -y -i video-in.mp4 -preset ultrafast -vf "[in]drawtext=text='نقطة البداية قلا':enable='between(t, 0,5)':fontcolor=White:fontsize=20:box=1:boxcolor=blackⓐ0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/2,drawtext=text='وصلات مزاحجة كبيرة الإزاحة (من ١٢ إلى (...) -- enter image description here
14:08
FFmpeg av_read_frame() interrupt_callback - Elija Newest 'ffmpeg' Questions - Stack Overflow

class TimeoutHandler_c public: TimeoutHandler_c() = default; ~TimeoutHandler_c() = default; void Reset(time_t timeout_microseconds) Timeout = timeout_microseconds; TimeLast = GET_US_TIME(); bool IsTimeout() const time_t duration = GET_US_TIME() - TimeLast; LOG(LOG_LEVEL_DEBUG, "Duration = %lli, timeout = %lli, result %i\\n", duration, Timeout, duration > Timeout); return duration > Timeout; static int CheckInterrupt(void* t) return t && static_cast(t)->IsTimeout(); (...) -- https://ffmpeg.org/doxygen/trunk/ffplay_8c_source.html#l03023
06:56
ffmpeg.exe frame rate handling issue - 배승주 Newest 'ffmpeg' Questions - Stack Overflow

The .mp4 screen recording video is being extracted using an external process of the ffmpeg.exe executable file. When extracting a video, the length of the video is shortened because it is fast-forwarded, unlike the elapsed time of the actual recording. After checking, the frame rate I set is 15, but the output fps is 11. Even if you reduce the frame rate, the output fps value also decreases. I don't know what to do to get it to be extracted to time correctly. Below is the code I wrote. string arguments = $"-r frameRate -y -f rawvideo -pix_fmt bgr24 -s (...)

13 octobre

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

18:04
Uncaught ReferenceError: CCapture is not defined? - The Dead Man Newest 'ffmpeg' Questions - Stack Overflow

I have a simple app to create a canvas and render it. I am using capture js and FFmpeg module for converting videos in my app, but when I run the app I get the following reference error: Uncaught ReferenceError: CCapture is not defined at test.js:67` Here is test.js: (function() "use strict"; var framesPerSecond = 60; var numFrames = 20; //framesPerSecond * 60 * 2; var thickness = 100; var speed = 4; var frameNum = 0; var canvas = document.getElementById("c"); var ctx = canvas.getContext("2d"); (...)
09:51
How to use FFmpeg Colorspace Options - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to understand the difference between Colorspace FFmpeg arguments: Normal option, -colorspace bt709 Number, -colorspace 1 Codec Params -x264-params "colorspace=bt709" Filter -vf "colorspace=bt709" The Colorspace categories are: all iall colorspace transfer primaries color range color matrix Question When should each be used when encoding from raw, or transcoding/converting from one format to another? Such as mpg to mp4. Do I need to specify the input colorspace or will FFmpeg (...) -- FFmpeg, https://ffmpeg.org/ffmpeg-filters.html#colormatrix, https://ffmpeg.org/ffmpeg-filters.html#colorspace, https://trac.ffmpeg.org/wiki/colorspace

12 octobre

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

05:39
How to fix the timing of a video created with ffmpeg being padded? [closed] - Jeff Newest 'ffmpeg' Questions - Stack Overflow

I've run the following command to crop a video using ffmpeg while keeping its subs and fonts: ffmpeg ` -ss 00:15:35.685 -to 00:15:46.696 ` -i video.mkv ` -map 0 ` -c:v libx264 -c:a copy -c:s copy ` -y copy-1.mkv When opening the video on mpv, the progress bar shows the first frame at 7 seconds in (and I can't make it go back further) and the last frame doesn't match the duration of the video, so there are ~500ms left (and I can't make it go forward any further). How do I make it so the first frame starts at 0s and the last (...)
21:09
Editing Caption in Video Message Changes Aspect Ratio to Square - Shayki Abramczyk Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a Telegram bot that processes videos by adding a watermark and then edits the original message to replace the video in a channel post. The issue I'm encountering is that when I edit the message with the new video, the aspect ratio changes, and the video becomes a square, even though the original video is in vertical format. Here’s a simplified version of the code I’m using to edit the message with the processed video: video_file = await video.get_file() print(video_file) random = randint(0,9999) input_path = (...)
19:59
OCI runtime exec failed: exec failed: (...) executable file not found in $PATH": unknown - Uğur Kaya Newest 'ffmpeg' Questions - Stack Overflow

I have dockerized an app which has ffmpeg installed in it via libav-tools. The app launches without problem, yet the problem occured when fluent-ffmpeg npm module tried to execute ffmpeg command, which was not found. When I wanted to check the version of the ffmpeg and the linux distro set up in the image, I used sudo docker exec -it c44f29d30753 "lsb_release -a" command, but it gave the following error: OCI runtime exec failed: exec failed: container_linux.go:296: starting container process caused "exec: \\"lsb_release -a\\": executable file not found in $PATH": unknown Then I (...)
07:20
How can i list all the audio devices on my pc using ffmpeg? [closed] - Daniel Lip Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg version: 2024-07-10 I tried this cmd command after running the cmd as admin. ffmpeg -list_devices true -f dshow -i dummy but the result is: D:\\>ffmpeg -list_devices true -f dshow -i dummy ffmpeg version 2024-07-10-git-1a86a7a48d-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers built with gcc 13.2.0 (Rev5, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 (...)
07:02
RTSP Client for H264 Audio/Video Stream - Jean-Philippe Encausse Newest 'ffmpeg' Questions - Stack Overflow

I'm looking for a simple way to get data of an IP Camera RTSP Stream (using H264 Audio/Video) and get on the other side a frame by frame byte[] a stream of the audio After many research EmguCV Capture seems hanging forever (no answer from forum) There is many (too big) RTSP Server few decode H264 There is "slow" ffmpeg wrapper There is some managed DirectShow wrapper So I don't know where to go ? And how to do this ? It seems iSpyCamera is doing the job but it's a big project not a little (...) -- RTSP Server

11 octobre

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

15:55
How to download .m3u8 in once time - Nabi K.A.Z. Newest 'ffmpeg' Questions - Stack Overflow

I have a .m3u8 file on remote host, with contain fixed numbers of chunk .ts file name, and not stream: #EXTM3U #EXT-X-VERSION:3 #EXT-X-TARGETDURATION:11 #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:9.736, media_0.ts #EXTINF:9.96, media_1.ts #EXTINF:10.0, media_2.ts #EXTINF:10.0, media_3.ts #EXTINF:10.0, media_4.ts #EXTINF:10.2, media_5.ts #EXTINF:10.0, When I use this command: # ffmpeg -i "http://example.com/chunklist.m3u8" file.mp4 frame= 582 fps=9.4 q=28.0 size= 1536kB time=00:00:23.21 bitrate= (...) -- http://example.com/media_0.ts, http://example.com/media_1.ts, ffmpeg
10:53
decreasing video resolution using ffmpeg increases file size - user270700 Newest 'ffmpeg' Questions - Stack Overflow

I try to decrease video resolution using ffmpeg by, ffmpeg -y -hide_banner -loglevel panic -i "input.mp4" -vf "scale=-1:256" -q:v 1 -c:a copy -threads 1 "output.mp4" But the video file size is increased. The original height is larger than 256. Why the file size is increased though the resolution is decreased?
10:07
Using FFmpeg AutoGen save to bitmap works on Windows but not on Linux - Chris Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg.AutoGen to decrypt video and save the frames as bitmaps. Code is using dotnet core and I'd like to get it working for both Windows and Linux. The code is similar to the example provided: https://github.com/Ruslan-B/FFmpeg.AutoGen/blob/db9bcd4b9dfad5d117ffd71fe1a2d073e96a3520/FFmpeg.AutoGen.Example/Program.cs AVFrame convertedFrame = this.converter.Convert(frame); Bitmap image = new Bitmap(convertedFrame.width, convertedFrame.height, convertedFrame.linesize[0], PixelFormat.Format24bppRgb, (IntPtr)convertedFrame.data[0]); When saving the (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen/blob/db9bcd4b9dfad5d117ffd71fe1a2d073e96a3520/FFmpeg.AutoGen.Example/Program.cs
07:26
Editing Video in Channel Changes Aspect Ratio to Square - Shayki Abramczyk Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a Telegram bot that processes videos by adding a watermark and then edits the original message to replace the video in a channel post. The issue I'm encountering is that when I edit the message with the new video, the aspect ratio changes, and the video becomes a square, even though the original video is in vertical format. Here’s a simplified version of the code I’m using to edit the message with the processed video: video_file = await video.get_file() print(video_file) random = randint(0,9999) input_path = (...)
04:20
How can I install FFmpeg so that pkg-config can find it? - Project PowerPoint Newest 'ffmpeg' Questions - Stack Overflow

I want to use the ffmpeg libraries in my program. These are libavformat and libavcodec. To link them, I'm trying to use pkg-config. I cannot get pkg-config to find these libraries. When I run pkg-config --modversion libavcodec I get Can't find libavcodec.pc in any of C:/Strawberry/c/lib/pkgconfig Which should mean that I don't have ffmpeg installed. However, I did install ffmpeg. I'm using Windows so I installed ffmpeg with the Chocolatey package manager. This seems to have only given me the ffmpeg program and not its (...)
04:03
How to improve random access of a video frame with Python? - Paul Jurczak Newest 'ffmpeg' Questions - Stack Overflow

I'm using pims library (https://github.com/soft-matter/pims) to access frames from .MOV file with over 25K frames, 3840 × 2160, H.264 (High Profile), 60fps. import pims from time import perf_counter video = pims.Video('video/v1.MOV') t0 = perf_counter() img = video[1000] t1 = perf_counter() print(f'(t1-t0):.3fs img.shape') Here are the timings on a fairly fast PC, after file open: frame #100: 2.97s frame #1,000: 28.39s frame #10,000: 280.19s AFAIK, this library uses ffmpeg, which can access (...) -- https://github.com/soft-matter/pims
01:19
Telegram Bot - Editing Video in Channel Changes Aspect Ratio to Square - Shayki Abramczyk Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a Telegram bot that processes videos by adding a watermark and then edits the original message to replace the video in a channel post. The issue I'm encountering is that when I edit the message with the new video, the aspect ratio changes, and the video becomes a square, even though the original video is in vertical format. Here’s a simplified version of the code I’m using to edit the message with the processed video: video_file = await video.get_file() print(video_file) random = randint(0,9999) input_path = (...)

10 octobre

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

22:46
Cannot Compile FFMPEG with libfreetype on Windows/Msys2 - Devin Dixon Newest 'ffmpeg' Questions - Stack Overflow

I am having issues compiling ffmpeg with libfreetype with this commmand on windows MSYS2: ./configure --pkg-config-flags="--static" --enable-libvpl --enable-libopenh264 --enable-version3 --enable-libfreetype --enable-libopus --enable-libvpx --enable-libvorbis --enable-libaom --enable-libdav1d --disable-gpl --disable-w32threads --enable-pthreads --disable-shared --enable-static --extra-cflags='--static' --extra-cflags="-I/mingw64/include -static" --extra-ldflags="-L/mingw64/lib -static" --prefix="/home/compiled" I keep getting this error: ERROR: freetype2 not (...)
21:48
How to md5 the video track (only) in ffmpeg - David542 Newest 'ffmpeg' Questions - Stack Overflow

I have a .mov file with a video and several audio tracks. To md5 the entire file I can do: [pdevⓐd ~]$ md5sum 1_TRAILER_HD_2CH_ES419_ENSUB_16X9_178_2398_DIGITAL_FINAL.mov 042f0e177fe25f562079cc07208ec446 Though when I try doing the same thing in ffmpeg, I get a different value: $ ffmpeg -i 1_TRAILER_HD_2CH_ES419_ENSUB_16X9_178_2398_DIGITAL_FINAL.mov -f md5 - MD5=74bd904f1edb4eb1368040e2792d7497 0kB time=00:01:59.11 bitrate= 0.0kbits/s speed=2.36x frame= 2867 fps= 56 q=-0.0 Lsize= 0kB time=00:01:59.57 bitrate= 0.0kbits/s speed=2.35x video:23222700kB (...)
16:54
Trimming end of video if scene changes - gvjonjones Newest 'ffmpeg' Questions - Stack Overflow

I'm clipping out parts of a sourcefile by timecode using something similar to the below ffmpeg -ss 00:01:00 -to 00:02:00 -i input.mp4 -c copy output.mp4 Sometimes a visual scene change can occur right at the end of the selection and creates a jarring flash frame. How can I utilise ffmpeg's scene detection to cut a clip short should a scene change be detected within the last second of my selection?
05:44
Determine which decoders/demuxers/parsers ffmpeg needs to successfully consume file - rschristian Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to custom compile a build of ffmpeg.wasm as the prebuilt, "support everything" is a tad hefty at 35mb. This base build (as well as standard ffmpeg, running on my desktop) works perfectly fine for the provided file, however, so I do have something I can work against. My issue is that I'm a bit stuck on figuring out what precisely I need to support the provided file, the correct combination of decoders, demuxers, parsers, etc., and the encoders, muxers I'll need to use to convert it to my desired output. I'm sure I can brute force this with time, but (...) -- ffmpeg.wasm
05:17
FFmpeg.wasm stopped working after adding cross origin headers - Fnr Newest 'ffmpeg' Questions - Stack Overflow

I was having the SharedArrayBuffer error as described in this other issue and to fix I added the cross origin isolation as suggested (also suggested here) by adding the headers Cross-Origin-Opener-Policy: same-origin Cross-Origin-Embedder-Policy: require-corp After that, now when I try to run the code I just got Uncaught ReferenceError: FFmpeg is not defined. The error is happening on Firefox My code is: const createFFmpeg, fetchFile = FFmpeg; //error happens here const ffmpegInstance = createFFmpeg( corePath: (...) -- SharedArrayBuffer error as described in this other issue

9 octobre

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

21:06
Use ffmpeg to add text subtitles [closed] - 0-alpha Newest 'ffmpeg' Questions - Stack Overflow

I am trying to add text subtitles to an .mp4 container using ffmpeg: ffmpeg -i input.mp4 -i input.srt -map 0.0 -map 0.1 -map 1.0 output.mp4 When I am trying to run this line, it gives me an error : Nmber of stream maps must match number of output streams. If I try to change the mp4 to mkv (although mp4 supports text subtitles), like this: ffmpeg -i input.mp4 -i input.srt -map 0.0 -map 0.1 -map 1.0 output.mkv It correctly maps the streams, but gives an error : Encoder (codec id 94210) not found (...)
17:13
Use FFmpeg to resize image - Andrew Simpson Newest 'ffmpeg' Questions - Stack Overflow

Is it possible to resize an image using FFmpeg? I have this so far: ffmpeg. -i 1.jpg -vf scale=360:240 > 2.jpg I get the error message: At least one output file must be specified Is it possible? -- FFmpeg
17:16
MacOS - how to choose audio device from terminal - jon_two Newest 'ffmpeg' Questions - Stack Overflow

I've been working on a Python program to create audio and also play back existing sound files. I can spawn multiple processes and have them all play to the laptop speakers, but I was wondering if it was possible to send each signal to a separate sound device. This is so I can apply effects to some processes but not all together. I'm using a MacBook and python simpleaudio, which calls AudioToolbox to connect to the output device. I've also got ffmpeg installed, so could use ffplay if that is easier. The pydub library uses this - it exports the current wave to a temp (...)
15:35
How to parse ffmpeg -list_options output to get complete list of formats? - gaamaa Newest 'ffmpeg' Questions - Stack Overflow

On my Windows 10, application I use VB6 and ffmpeg.exe to capture video from USB capture device. I need to show complete list of supported formats by this capture card. When I use below command I get some list. But its looks incomplete for me. ffmpeg -f dshow -list_options true -i video="USB3. 0 capture" Result: USB3. 0 capture: Q:\\FFMpeg VB6\\f2>ffmpeg -f dshow -list_options true -i video="USB3. 0 capture" [dshow ⓐ 087d7480] DirectShow video device options (from video devices) [dshow ⓐ 087d7480] Pin "Capture" (alternative pin name (...) --
10:20
Read ID3 tags generated using Apple's id3taggenerator - Damiaan Dufaux Newest 'ffmpeg' Questions - Stack Overflow

Hi I am creating an HLS stream with ID3 tags using Apple's HTTP Live Streaming (HLS) Tools, FFmpeg and NodeJS. When I try to read out the stream using an AVPlayer and AVPlayerItemMetadataOutput on macOS I'm not able to read out the ID3 tags. When I use the same code to read out a sample stream containing ID3 tags I do see them popping up. What am I doing wrong? Reproduction: Streaming I generate an infinite HLS stream from a 5 minute long mpeg ts file using this command: ffmpeg -stream_loop -1 -re -i 5m.ts -c:v copy -c:a copy -f mpegts -strict -2 - | (...) -- Apple's HTTP Live Streaming (HLS) Tools, sample stream containing ID3 tags
10:23
When build ffmpeg on windows with msvc and msys, occurs error LIBCMT.lib(loadcfg.obj) : error LNK2001: unresolved external symbol __enclave_config - jiezi Newest 'ffmpeg' Questions - Stack Overflow

When build ffmpeg on windows with msvc and msys, Error msgs occurs in msys terminal: cl.exe is unable to create an executable file. C compiler test failed. The error msgs in config.log are below: link.exe -nologo -out:./ffconf.34uX3m9d/test.exe ./ffconf.34uX3m9d/test.o LIBCMT.lib(loadcfg.obj) : error LNK2001: unresolved external symbol __enclave_config LIBCMT.lib(loadcfg.obj) : error LNK2001: unresolved external symbol __guard_eh_cont_table LIBCMT.lib(loadcfg.obj) : error LNK2001: unresolved external symbol (...)
06:40
How to use ffmpeg to write tags into meta data of mp4 file? - Harry McKenzie Newest 'ffmpeg' Questions - Stack Overflow

I have the following command executed under Ubuntu App on Windows 11: ffmpeg -i "$mp4_file" \\ -metadata:s:s:0 language=eng \\ -metadata title="My Title Is Here Guys!" \\ -metadata subtitle="My Subtitle" \\ -metadata rating="4" \\ -metadata comment="My Comment Is Here!" \\ -metadata tags="my; tags; are; here;" \\ -codec copy "$meta_file" But only the Title and Comments is filled out in the metadata when I check the MP4 file's properties with Right Click > Properties > Details. The Subtitle and Tags are not written. What am I doing wrong? I (...) --

8 octobre

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

19:06
FFmpeg/DASH: duration or timestamp out of range for mov/mp4 format - mike Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it? If I simply convert "copy" it into to a single mp4 file it works without error. ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -min_seg_duration 1000000 -use_timeline 1 -use_template 1 -init_seg_name init.mp4s -media_seg_name "\\$Number\\$.mp4s" -adaptation_sets "id=1,streams=0" -remove_at_exit 0 -f dash -dash 1 (...)
17:29
Is there a way to use youtube-dl in async - Stam Kaly Newest 'ffmpeg' Questions - Stack Overflow

I have an application where I use zmq with asyncio to communicate with the clients who have the ability to download a video with youtube-dl to the server. I tried adding await to youtube_dl's download function but it gave me an error since it was not a coroutine. My code right now is simply looking like this: import asyncio import youtube_dl async def networking_stuff(): download = True while True: if download: print("Received a request for download") await youtube_to_mp3("https://www.youtube.com/watch?v=u9WgtlgGAgs") download (...)
12:07
V-Ray .exr to mp4 ffmpeg Stuttering - OlivierArgentieri Newest 'ffmpeg' Questions - Stack Overflow

I have an issue using ffmpeg with V-Ray exr. I'm trying to export .mp4 from .exr, so ihave used this command ffmpeg.exe -y -start_number 1 -framerate 25 -i D:\\temp\\WAC_TEST\\what_about_cooking_sq01_p040_rendering_main_publish_v000.%4d.exr -pix_fmt gbrapf32le D:/out_vray_exr.mp4 I checked parameters using ffmpeg.exe -y -start_number 1 -i D:\\temp\\WAC_TEST\\what_about_cooking_sq01_p040_rendering_main_publish_v000.%4d.exr Result : Input #0, image2, from Input #0, image2, from (...) -- , https://www.youtube.com/watch?v=C8MawpkKGfc,
04:18
gstreamer cant demux a .ts video but ffmpeg can. How can I fix the error? - Zack Newest 'ffmpeg' Questions - Stack Overflow

I have a .ts video that when I run through a basic gstreamer pipeline I get an error that it can't demux the video. comand: gst-launch-1.0 filesrc location="/videos/my_video.ts" ! tsdemux ! meta/x-klv ! fakesink I get the error: Setting pipeline to PAUSED ... Pipeline is PREROLLING ... WARNING: from element /GstPipeline:pipeline0/GstTSDemux:tsdemux0: Delayed linking failed. Additional debug info: gst/parse/grammar.y(853): gst_parse_no_more_pads (): /GstPipeline:pipeline0/GstTSDemux:tsdemux0: failed delayed linking some pad of GstTSDemux (...)

7 octobre

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

13:22
After downloading the file i got 0 byte file size, I dont know how to solve this error? [closed] - Saurabh Chauhan Newest 'ffmpeg' Questions - Stack Overflow

This is the handler function which converts a given format to another format but when i provide additional options(like trim audio,bitrate,codec,sample rate etc) to audio and video then it gives me 0 byte file after converting and if i do not include additional options then it gave me correct file. Please look into this and provide me solution. const handleConvert = async () => if (!ffmpeg) return; setConverting(true); for (let uploadedFile of uploadedFiles) const file = uploadedFile; const fileNameWithoutExtension = (...)
13:59
Overlay Image by FFmpege [closed] - Trần Văn Hiếu Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFMpeg in Flutter. Input: I would like The first image will overlay the colored parts of the second image. The same as: I tried: ffmpeg -i input.png -i input2.png -filter_complex "[0][1]blend=all_mode=overlay" -update true output.png. However, the output image seems to have a layer of blur over it. is there any other way to solve my problem? -- , , ,
13:04
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 (...)
12:22
Aubio (aubioonset.exe) on Windows - can't find ffmpeg libraries - Peter Wirdemo Newest 'ffmpeg' Questions - Stack Overflow

I have installed Aubio on Windows but when trying to use the tools, like aubioonset.exe, I am faced with the following error message: C:/Peter/aubio/aubio/aubio-0.4.6-win64-ffmpeg/bin/aubioonset.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory I assume it looks after ffmpeg libraries. I have FFmpeg installed and bin-dir added to PATH environment variable. FFMPEG is working flawless globally. After searching internet for answers to my issue I find "answers" like: "install chosen libraries (for instance ffmpeg, (...)
09:05
How to put a video inside a frame and record whole thing as a video? - crysis Newest 'ffmpeg' Questions - Stack Overflow

I have a video. I want to create a new video such that the video plays inside a frame similar to this screenshot. Loom recording does this. Most of the screen recorders do this. This screenshot is of the video. This is done in most of the screen recorders. Here is what I'm thinking render video on a canvas with the background. Play the video Use mediarecorder API to record a new video. I don't have good understanding of frontend development. Is that how it is generally done or I need to use ffmpeg? I would really appreciate any guidance (...) --
04:46
Concatenate all opus audio in folder and create chapters - Petrus Vermaak Newest 'ffmpeg' Questions - Stack Overflow

I need to join multiple (mp3 or opus) audio in a directory into a single file. I also need to preserve/create each audio as a chapter. The expected outcome is that the output contains the chapter information in the file, so one can easily skip to the desired chapter using vlc player, etc. I need to do this on Windows and have found a way to join the files, but it does not preserve the chapter information: cmd type *.opus | FFmpeg -i pipe: -c:a copy all.opus Can anyone please tell me how to preserve chapters on Windows? I don't mind using a script as long as you tell me how (...)

6 octobre

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

12:37
FFmpeg Zoom and Rotate Causes Image Cropping Instead of Allowing It to Go Beyond Frame Edges [closed] - XVersi Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a zoom-in video with a gentle rotation effect using FFmpeg. My goal is to zoom in on the center of the image while allowing parts of the image to "go beyond" the frame boundaries during the zoom and rotation. However, what I see is that FFmpeg seems to crop the image to fit within the output frame, and instead of keeping the full image intact, it fills the rest of the frame with black sections, effectively trimming parts of my image. Here is the code I'm using in Go to generate the video using FFmpeg: func createZoomInVideoWithRotation(ffmpegPath, (...)
10:49
Ffmpeg RTSP stream with size=N/A bitrate=N/A [closed] - Comycos Newest 'ffmpeg' Questions - Stack Overflow

When I try to stream a video it seems to work but bitrate and size are N/A frame= 277 fps= 26 q=-1.0 size=N/A time=00:00:11.07 bitrate=N/A speed=1.05x I run the following command to stream a video to a RTSP server: ffmpeg -re -stream_loop -1 -i idurre-2024-09-17-12h33m19s.mp4 -c copy -f rtsp -rtsp_transport tcp rtsp://localhost:8554/test The output ffmpeg is like this: ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.1.0.2.5) configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1 --enable-shared (...)
17:29
Big problems while compiling FFMPEG for iOS5 - Vlad Bogdan Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to compile the ffmpeg library for iOS5. I tried different options but none works. I downloaded this: https://github.com/ciphor/ffmpeg4ios . I tried the original build_armv7 but it didn't work. I edited the build_arm7 file and now it looks like this: #!/bin/tcsh -f if (! -d armv7) mkdir armv7 if (! -d lib) mkdir lib rm armv7/*.a make clean ./configure --disable-network --disable-mpegaudio-hp --disable-lpc --disable-vaapi --disable-vdpau --disable-hwaccels --disable-mmx --disable-mmx2 (...) -- https://github.com/ciphor/ffmpeg4ios
13:53
Audio to Video Conversion using FFmpeg in React - Yuri Newest 'ffmpeg' Questions - Stack Overflow

Upon running my code, the audio successfully gets converted into a video and saved in the bucket, however, the video size is just 9 bytes. Here's my utility. import FFmpeg from 'ⓐffmpeg/ffmpeg'; import fetchFile from 'ⓐffmpeg/util'; import ref, uploadBytes, getDownloadURL from 'firebase/storage'; import storage from '../firebase'; export async function generateAndStoreVideo(audioPath, imagePath, userId) try const ffmpeg = new FFmpeg( log: true ); await ffmpeg.load(); (...)
07:06
Main process is held by ffmpeg command - Michael Lopez Newest 'ffmpeg' Questions - Stack Overflow

I created a python program for handling my Arlo Camera. To do that I have been using the pyaarlo library (https://github.com/twrecked/pyaarlo) to catch camera's events. The goal is to monitor if there is an active stream on cameras, get the RTSP stream url and reStream it to a HLS playlist for local usage. Here the python code : import asyncio from decouple import config import logging from my_pyaarlo import PyArlo import urllib.parse from queue import Queue import signal # Read config from ENV (unchanged) ARLO_USER = (...) -- https://github.com/twrecked/pyaarlo

5 octobre

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

23:20
ffmpeg via pipe: stream 1, offset 0x30: partial file - Dito Adriel Newest 'ffmpeg' Questions - Stack Overflow

my videodata is dynamic it can use any exension but its error when i use mp4 extension. my function: func (s *service) convertVideo(videoData []byte) ([]byte, error) var buffer bytes.Buffer cmd := exec.Command("ffmpeg", "-i", "pipe:0", "-c:v", "libvpx-vp9", "-b:v", "0", "-f", "webm", "-t", "8", "-preset", "ultrafast", "pipe:1") cmd.Stdin = bytes.NewReader(videoData) cmd.Stdout = &buffer err := cmd.Run() if err != nil return nil, err return buffer.Bytes(), nil and got (...)
16:54
[ffmpeg][asyncio] main process is held by ffmpeg command - Michael Lopez Newest 'ffmpeg' Questions - Stack Overflow

I created a python program for handling my Arlo Camera. To do that I have been using the pyaarlo library (https://github.com/twrecked/pyaarlo) to catch camera's events. The goal is to monitor if there is an active stream on cameras, get the RTSP stream url and reStream it to a HLS playlist for local usage. Here the python code : import asyncio from decouple import config import logging from my_pyaarlo import PyArlo import urllib.parse from queue import Queue import signal # Read config from ENV (unchanged) ARLO_USER = (...) -- https://github.com/twrecked/pyaarlo

4 octobre

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

15:09
Resizing AVIF images with transparency with FFmpeg [closed] - Calebmer Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to resize an image with transparency with FFmpeg, however the output looks to only be a resized version of the alpha layer. When I try to do a noop transform of the AVIF image with an alpha layer: ffmpeg -i input.avif output.avif output.avif appears to be the alpha layer with black representing alpha 0 and white representing alpha 1. ffprobe input.avif gives me: ffprobe version 7.0.2 Copyright (c) 2007-2024 the FFmpeg developers built with Apple clang version 15.0.0 (clang-1500.3.9.4) configuration: (...)
16:52
how to add text to the video in android? - Sajad Norouzi Newest 'ffmpeg' Questions - Stack Overflow

In my app I record a video and I wanna overlay the url of my company on the right bottom of that video. I record video with MediaRecorder and there is no problem with the recording, but for adding text to the video I haven't been successful. I searched and found some library like FFmpeg and JavaCV which let user overlay a text on the video but I don't know if there is any way for using them in Android. after that found OnPreviewFrame which returns each frame of the camerapreivew. I want to get all frames after user touch record button and draw text using canvas to each frame and (...)
14:46
What is the most efficient way of stacking two videos using ffmpeg? - technical_difficulty Newest 'ffmpeg' Questions - Stack Overflow

I want to stack two videos of a talk together vertically using ffmpeg. One shows the presentation (slides) and one shows the speaker. Since I want to do this for several talks, I'd like to do this in a more general way and as efficiently as possible. Most of the time the videos have different resolutions and aspect ratios. My current workflow is: Scale the video with the lower resolution up to match the resolution of the other video: ffmpeg -i video1.mp4 -s 1920x1080 -c:a copy video1_upscaled.mp4 Stack the two videos: ffmpeg -i video1_scaled.mp4 -i (...)
12:18
ffmpeg converting from mkv to mp4 without re-encoding - unknown Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg to switch container from mkv to mp4 via this command: ffmpeg -i filename.mkv -vcodec copy 1.mp4 this is the simplest command that I found when converting from mkv container to mp4 without re-encoding. The output stated otherwise (if I am not mistaken) This is a small screen shot of the the output: Where it said Stream Mapping, #0:0 (264 (native)) -> 264 (libx264)). Does this mean that it's re-encoding from x264 to libx264? What Did I do wrong? Any help is (...) --
04:08
Concatenate videos and add black frames between them with ffmpeg - user3406207 Newest 'ffmpeg' Questions - Stack Overflow

I have three videos that I am concatenating with ffmpeg. I would like to add a few black frames in between them. Although I've found a few hints on the web it has not worked for me yet. I have tried to generate an 'empty' video with just black frames with: ffmpeg -t 20 -s 1920x1080 -f rawvideo -pix_fmt rgb24 -r 25 -i c:\\nul E:\\empty.avi and then concatenate with another one but doesn't work. I have tried a few other things without success. Any help would be greatly appreciated EDIT: also tried to add black frames before and after video (...) -- FFMPEG session report

3 octobre

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

17:08
What is the least CPU-intensive format to pass high resolution frames from ffmpeg to openCV? [closed] - Doctico Newest 'ffmpeg' Questions - Stack Overflow

I'm developing an application to process a high-resolution (2560x1440) RTSP stream from an IP camera using OpenCV. What I've Tried OpenCV's VideoCapture: Performance was poor, even with CAP_PROP_FFMPEG. FFmpeg with MJPEG: Decoded the stream as MJPEG and created OpenCV Mats from the image2pipe JPEG buffer. Resulted in lower CPU usage for OpenCV but higher for FFmpeg. Current Approach: Output raw video in YUV420p format from FFmpeg. Construct OpenCV Mats from each frame buffer. Achieves low (...)
15:06
Error Opening RTMP Stream through FFmpeg command when executed through exec package [closed] - Akhil Newest 'ffmpeg' Questions - Stack Overflow

I have been trying to transcode the live stream from RTMP server running on rtmp://localhost:1936/live/test with FFmpeg in a Go application using os/exec package, But seems to not work and gives the input/output error (I have attached below). The same exact ffmpeg command when I execute on terminal, works as its supposed to. Not Sure why that is, here is my code for reproducing and analyzing the mistakes. ffmpegCmd := fmt.Sprintf("ffmpeg -nostdin -i rtmp://localhost:1936/live/%s -c:v libx264 -s %s -f %s %s/stream.mpd", streamKey, resolution, sp.OutputFormat, outputPath) (...)
17:33
using ffmpeg cut video but losing alpha [closed] - bo zzz Newest 'ffmpeg' Questions - Stack Overflow

I use ffmpeg to cut my .webm video,this video has alpha channel,like this image but when I cut and generate a new video,the background is not transparent ffmpeg -i /Users/bozzz/Downloads/2a609f2ffe4862e088ab09a087867cdb.webm -ss 0 -to 3 -c:v libvpx-vp9 -pix_fmt yuva420p /Users/bozzz/Downloads/test_cut_video.webm enter image description here enter image description here How can I modify my code -- enter image description here, enter image description here
20:31
Batch processing removal of closed captions in video files with ffmpeg [closed] - user27616468 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to find an easier way of removing closed captions with ffmpeg from a lot of files, so far I have been using this and copy pasting file names in "C:\\ffmpeg\\bin\\ffmpeg.exe" -i "E:\\Videos.mkv" -bsf:v "filter_units=remove_types=6" -c copy "E:.mkv" Is there some way to make it do all files within the initial folder so I don't have to do each file name? I have seen similar inquiries in regards to closed captions from 10+ years ago on this site but after a bit of using the search feature could not find anything that may relate to my specific need. This (...)
23:45
How to achieve real time video editing on Android? - Itamar Newest 'ffmpeg' Questions - Stack Overflow

I've been working recently on a video-editing-related project on Android, and am desperately looking for resources related to video editing on the platform. The only video-editing related "method" or information I could find was using the FFmpeg library, which is pretty rich in features and capabilities but works really slow, operations such as reversing a 10-second video can take as long as 30 seconds, which delivers a really poor user experience. That being said, it seems that there are tons of Android video-editing apps that are capable of doing everything FFmpeg can, (...) -- InShot, PocketVideo, previous musical.ly TikTok
18:34
moov atom missing when streaming video to server - Zaid Newest 'ffmpeg' Questions - Stack Overflow

I am working on a screen recording application where it allows users to record their screen and I use websocket to send their bytes data in real time to my FastAPI Python server. The bytes are sent every 2 second and I use FFmpeg to keep saving the bytes in the output MP4 video file. problem: After the user stops the recording, I have a ffmpeg process that takes the recorded video as input and add some filters on top of it and return an edited video. Most of the time it works fine, however, sometime users are facing this ffmpeg error :- [mov,mp4,m4a,3gp,3g2,mj2 ⓐ (...) --

2 octobre

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

18:37
How to streaming audio with ffmpeg and container of my own choosing? [closed] - xchg.ca Newest 'ffmpeg' Questions - Stack Overflow

I'm streaming an ac3 audio via rtsp using ffmpeg like this: > ffmpeg -re -f ac3 -i sample4.ac3 -ar 8000 -f mulaw -f rtsp rtsp://10.22.22.11:8554/audiostream In the RTSP protocol exchange it DESCRIBEd like this: > Session Description Protocol > Session Description Protocol Version (v): 0 > Owner/Creator, Session Id (o): - 0 0 IN IP4 127.0.0.1 > Session Name (s): No Name > Connection Information (c): IN IP4 0.0.0.0 > Time Description, active time (t): 0 0 > Media Description, name and address (m): audio 0 RTP/AVP 96 > Media Attribute (a): (...)
04:19
ffmpeg won't give me correct dimensions after scaling video (.mov) [closed] - Sergei Kardashev Newest 'ffmpeg' Questions - Stack Overflow

I came across issue of not being able to get correct dimensions of output video file. Initially I tried to convert .mov to .mp4, but I got error width not divisible by 2. I googled the error and found out that I can scale media to 180px, but I got 179px instead. And it's not divisible by 2. Input file is 181x133px, so I tried to downscale output file to 180px. I used MacOS 15.0 terminal. I ran ffmpeg -i input.mov -vf "scale=180:-1" output.mp4. But the output file is 179×132px. Width is 179, not 180. How come? Why its width doesn't match the one I (...)
18:44
Problem with FFmpeg breaking when streaming the entire screen and switching tabs - Ibad Ahmad Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a screen recording and streaming setup where the user records their entire screen and streams it to Twitch. The setup works fine initially, but when I switch tabs during recording, the stream breaks on the backend, and I get the following FFmpeg errors: FFmpeg STDERR: [matroska,webm ⓐ 0x7f9dcb904580] EBML header parsing failed [in#0 ⓐ 0x7f9dcb904380] Error opening input: Invalid data found when processing input Error opening input file -. Error opening input files: Invalid data found when processing input My frontend code captures the screen (...)
18:08
ffmpeg: execute with more options - oscarm Newest 'ffmpeg' Questions - Stack Overflow

I installed FFMPEG using apt-get. It comes by default compiled with some options: configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr How can I execute it and add more options without recompiling it? I'm looking for a way to execute including the option: -enable (...)
16:02
Does anybody know about the ".ms" video format, and how I might be able to convert it? [closed] - Jim Miller Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to deal with some very old video files from a Mac OS 8-era CD. They have a ".ms" file extension, and can be played with the old "Movie Player" distributed with OS 8. But Movie Player won't export them to .mp4 or anything currently useful, and I haven't found a modern-day player/converter (VLC, etc), on either Mac or Windows, that will open them. I could update my old testing Mac to QuickTime 3, but I've long ago misplaced my QT 3 Pro key(!), and the free version of QT 3 doesn't do exports. Those were the days... BTW, these ".ms" files are not the same (...)
09:36
What is the best way to generate dynamic videos from template in php or laravel? [closed] - Jacopo944 Newest 'ffmpeg' Questions - Stack Overflow

I was trying to find a way to generate videos from some templates with a mechanism similar to what happens with DOMpdf that allow to inject a blade, that can use dynamic variables to generate different content based on data, to generate a dynamic PDF that can store dynamic variables. I know that there is FFMPEG but it is not used directly to do so or maybe i don't understand how to do it. Is there someone that found a better way? a simple and efficient way to accomplish that task? i tried to find some resources online but there were very few answers to my (...)
09:42
How to efficiently keep a stable frame rate video stream in a PyQt application? - Jeroen De Geeter Newest 'ffmpeg' Questions - Stack Overflow

I am developing a PyQt (PySide6) application that needs to display and store multiple camera streams at the same time. The display of the camera streams goes well; however, storing these streams seems to slow down the application significantly up to a point where the GUI doesn't work fluently anymore. I have a minimal working example using a stub to demonstrate how my code currently works. However, given that it is a minimal working example, it will not visibly slow down. import sys from time import sleep import av import numpy as np import pyqtgraph as (...)
06:13
`ffmpeg -f concat` don't work when all input streams appear to have the same spec - Roy Newest 'ffmpeg' Questions - Stack Overflow

My ffmpeg command: ffmpeg -safe 0 -f concat -i list.txt -c copy out.mp4 My 1st input file: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\\Applications\\ffmpeg_6.0_full\\a.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf60.3.100 Duration: 00:00:04.97, start: 0.000000, bitrate: 40 kb/s Stream #0:0[0x1](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Stream (...) -- https://pastebin.com/Z5q97Uyg

1er octobre

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

21:04
How to efficiently store variable frame rate video stream in a pyqt application? - Jeroen De Geeter Newest 'ffmpeg' Questions - Stack Overflow

I am developing a PyQT (PySide6) application that needs to display and store multiple camera streams at the same time. The display of the camera streams goes well, however, storing these streams seems to slow down the application significantly up to a point where the GUI doesn't work fluently anymore. I have a minimal working example using a stub to demonstrate how my code currently works. However, given that it is a minimal working example, it will not visibly slow down. import sys from time import sleep import av import numpy as np import pyqtgraph as (...)
20:54
Calculating PCR (Program clock reference) in MPEG2 Transport stream - Tomislav Timic Newest 'ffmpeg' Questions - Stack Overflow

i am implementing transcoder and packager for abr protocols (HLS/DASH), and also udp mutlicast as output option. I am currently finishing multiplexing of mpeg 2 transport streams, but i do not really understand how should pcr work, how should I calculate it, I have pts/dts values, is there some formula to derive pcr from pts and/or dts? When i do tsdump from tsduck with ffmpeg output they have around +100ms PCR delay on PTS. I found some calculations like this: (int64_t) ((8.0 * (packetsWritten * TS_PACKET_LENGTH + offset) / tsMuxrate) * TS_CLOCK + 0.5) + (...)
17:06
Artifacts during playback of RTSP using FFmpeg API - ffvideoner Newest 'ffmpeg' Questions - Stack Overflow

I need to play RTSP video from an IP camera. If I use ffplay or VLC, everything is fine. But if I use FFmpeg API (C#, FFmpeg.AutoGen), then artifacts appear on the frames. What could be wrong with using FFmpeg API? UPDATE On Christoph's advice, I tried replacing UDP with TCP for ffplay. Both TCP and UDP give a delay of 3-4 seconds (my application gives a delay of less than one second). Both TCP and UDP work without artifacts. When UDP is used, there are error messages at the beginning: max delay reached. need to consume (...) --
17:30
FFMPEG unable to stream videos frame by frame to RTMP Youtube Live stream using Python - YadneshD Newest 'ffmpeg' Questions - Stack Overflow

I need to open a locally stored video, process it frame by frame and send it to YouTube live RTMP stream. I am able to do it using FFMPEG in command line terminal but unable to do it using Python. In Python on console, it shows stream is properly sent but on YouTube Live control room it shows no data. I tried all other tools like Vidgear, Gstreamer etc. But most of them use FFMPEG backend and it does not work. Here is my command to directly send video from .mp4 source file that works properly on terminal and video is streamed on YouTube Live control room - ffmpeg -re -i (...) -- ,
13:25
Can someone teach me about downloading DRM content? [closed] - KingKongGotNoBalls Newest 'ffmpeg' Questions - Stack Overflow

There is some videos that I would like to download that are DRM protected. I tried using StreamFab for the first time yesterday and it told me that the encryption used in the video was unknown or something like that. I have read that you have to get some keys and then unencrypt something. But I have tried researching it many times and I have never found someone throughly explain all the process. Most of the videos that I need are on the -N-B-A- site. Could someone explain to me the process of how to do (...)
09:06
FFMPEG-API Add Subtitle to an MPEG-TS Stream - Zohan Le Newest 'ffmpeg' Questions - Stack Overflow

We have a Video file we want to stream it over UDP in mpegts. This is working perfectly with ffmpeg API. Now we want to add subtitle's to this stream. i'll try to load subtitle file and add stream to our output context not working i'll try to dynamicaly add subtitle not working too If Anyone has an idea. Thanks to all.
08:07
How to create transparent hevc / h265 mp4 video with libx265 / FFmpeg without hardware acceleration? - Igor Stepin Newest 'ffmpeg' Questions - Stack Overflow

As a source there are series of transparent png files. It's clear how to create transparent webm: ffpmpeg -framerate 30 -i 'frame-%d.png' -f webm -vcodec libvpx-vp9 -b:v 0 -pix_fmt yava420p my.webm It's also clear how to create transparent mp4 using Apple hw (videotoolbox api): ffpmeg -framerate 30 -i 'frame-%d.png' -f mp4 -vcodec hevc_videotoolbox -allow_sw 1 -q:v 75 -alpha_quality 0.75 -tag:v hvc1 my.mp4 It's unclear how to do it in a Linux-based docker image without special hw. In these cases, libx265 is used quite (...)

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