8 août

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

• 14:06
  How can i mux H264 stream into MP4 file via libavformat - Brian Newest 'ffmpeg' Questions - Stack Overflow
  I want to realize an application that firstly decode a multi-media file(such as test.mp4 file, video codec id is H264), get a video stream and an audio stream, then make some different in the audio stream, at last encode the video stream(use libx264) and audio stream into a result file(result.mp4). To promote the efficiency, i omitted the decode and encode of video stream, i get the video packet via function "av_read_frame", then output it directly into the result file via function "av_write_frame". But there is no picture in the output file, and the size of output file is fairly (...)

7 août

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

• 17:49
  FFMPEG screen recording for windowed frames [closed] - Vibhor Karnawat Newest 'ffmpeg' Questions - Stack Overflow
  So I want to do screen-recording using ffmpeg for all windows application.FFMPEG normally is working for most of the application but I don't get any frames when application is windowed full screen , Which Later I find out it is because those frames goes for gpu, and ffmpeg can't access gpu frames So I tried to build the ffmpeg with directX that is d3d11grab but I am not able to do So I have cloned the ffmpeg-msvc github and added the nvenc paths and using below command to build it ./configure \\ --toolchain=msvc \\ --prefix=/mingw64 \\ --enable-gpl (...)
• 21:04
  How to handle DHAV (.dav) video streams? - Mateus Henrique Newest 'ffmpeg' Questions - Stack Overflow
  I have a WPF app where I need to handle DHAV (.dav) video stream on runtime from a Digital Video Recorder (DVR). I'm using an SDK that can be found here Dahua SDK search SDK: General_NetSDK_Eng_Win64_IS_V3.052.0000002.0.R.201103 I need to handle every single frame from the video stream, convert it to a BitmapImage and then displays it in a WPF Image control. Something like: MJPEG Decoder The problem is that I can't find any documentation on how to handle that data and the samples from the SDK doesn't show that either, instead they are built with WinForms (...) -- Dahua SDK search, MJPEG Decoder
• 15:13
  How to finalize LL-DASH stream MPD file using Shaka Packager - Arjit Newest 'ffmpeg' Questions - Stack Overflow
  I'm using Shaka Packager with FFmpeg piping to produce LL-DASH live streams from an NGINX-RTMP input. Streaming works fine, but when the publisher stops streaming, Shaka Player continuously trying to fetch & throws 404 errors for segment files that don’t exist. For example, if the last segment is 29.m4s, the player still tries to fetch: GET http://localhost:8080/dash/stream/480p_30.m4s 404 (Not Found) GET http://localhost:8080/dash/stream/720p_31.m4s 404 (Not Found) Even though the stream ended at segment 29. Shaka-packager: "$SHAKA_PACKAGER_BIN" (...)
• 06:14
  How to write a video stream to a server? - The Mask Newest 'ffmpeg' Questions - Stack Overflow
  Recently been playing with ffmpeg and it's powerful abilities. Working on a cool project where I'm trying to create a live video stream using FFMPeg. The client(reactJs) and server(nodeJS) are connected via web-socket. The client sends the byte packets to server and the server then spawns an ffmpeg process and serve it to an nginx server. Client(live-stream.js): const stream = await navigator.mediaDevices.getUserMedia( video: true, audio: true, ); videoRef.current.srcObject = stream; const ingestUrl = `ws://localhost:8081/ws` const (...)

6 août

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

• 18:37
  How to append dummy frames to FFmpeg pipe after EOF to prevent Shaka Packager from stopping (LL-HLS/LL-DASH)? [closed] - Arjit Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a live streaming pipeline where I pipe FFmpeg into Shaka Packager to generate LL-HLS and LL-DASH output from an RTMP stream. Scenario: FFmpeg receives the RTMP stream and pipes the output to Shaka Packager. When the RTMP publisher stops streaming, FFmpeg naturally ends, sending an EOF (end-of-file) to the pipe. This causes Shaka Packager to stop processing, as it closes its read stream on EOF. What I want: Before FFmpeg terminates, or even after, I want to append 5 seconds of black dummy frames (video + silent audio) to the pipe, so (...)
• 21:20
  Shaka Packager + FFmpeg piping: EXTINF durations are incorrect (0.033 instead of 2s) in HLS playlist [closed] - Arjit Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFmpeg and Shaka Packager(piping) to create a low-latency HLS (LL-HLS) stream from an RTMP input. pipe: VIDEO_720P_FIFO="$OUTPUT_BASE_DIR/video_720p.pipe" VIDEO_480P_FIFO="$OUTPUT_BASE_DIR/video_480p.pipe" AUDIO_FIFO="$OUTPUT_BASE_DIR/audio.pipe" mkfifo "$VIDEO_720P_FIFO" mkfifo "$VIDEO_480P_FIFO" mkfifo "$AUDIO_FIFO" shaka-packager: "$SHAKA_PACKAGER_BIN" \\ "in=$VIDEO_720P_FIFO,stream=video,format=mp4,init_segment=$STREAM_OUTPUT_DIR/720p_init.mp4,segment_template=$STREAM_OUTPUT_DIR/720p_\\$Number\\$.m4s,bandwidth=3000000,hls_nam
• 19:35
  Could not find com.arthenica:ffmpeg-kit-full:6.0-2 [closed] - gabocalero Newest 'ffmpeg' Questions - Stack Overflow
  I started receiving this message when I build my project > Could not find com.arthenica:ffmpeg-kit-full:6.0-2. Searched in the following locations: - https://dl.google.com/dl/android/maven2/com/arthenica/ffmpeg-kit-full/6.0-2/ffmpeg-kit-full-6.0-2.pom - https://repo.maven.apache.org/maven2/com/arthenica/ffmpeg-kit-full/6.0-2/ffmpeg-kit-full-6.0-2.pom - https://jcenter.bintray.com/com/arthenica/ffmpeg-kit-full/6.0-2/ffmpeg-kit-full-6.0-2.pom - https://jitpack.io/com/arthenica/ffmpeg-kit-full/6.0-2/ffmpeg-kit-full-6.0-2.pom - (...) -- project's github page,

5 août

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

• 19:31
  Convert audio files to mp3 using ffmpeg [closed] - Hrishikesh -Rishi- Choudhari Newest 'ffmpeg' Questions - Stack Overflow
  I need to convert audio files to mp3 using ffmpeg. When I write the command as ffmpeg -i audio.ogg -acodec mp3 newfile.mp3, I get the error: FFmpeg version 0.5.2, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 1 / 52.20. 1 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 built on Jun 24 2010 14:56:20, gcc: 4.4.1 Input #0, mp3, from 'ZHRE.mp3': Duration: 00:04:12.52, start: 0.000000, bitrate: 208 kb/s Stream #0.0: Audio: mp3, 44100 Hz, (...)
• 14:04
  FFmpeg audio encoder new encode function - mattobob Newest 'ffmpeg' Questions - Stack Overflow
  I would like to update an AV Audio encoder using function avcodec_encode_audio (deprecated) to avcodec_encode_audio2, without modifying the structure of existing encoder: outBytes = avcodec_encode_audio(m_handle, dst, sizeBytes, (const short int*)m_samBuf); where: m_handle AVCodecContext dst, uint8_t * destination buffer sizeBytes, uint32_t size of the destination buffer m_samBuf void * to the input chunk of data to encode (this is casted to: const short int*) is there a simply way to do it? I'm trying (...)
• 13:04
  very low latency streaminig with ffmpeg using a webcam - userDtrm Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to configure ffmpeg to do a real-time video streaming using a webcam. The ffmpeg encoder command I use is as follows. ffmpeg -f v4l2 -input_format yuyv422 -s 640x480 -i /dev/video0 -c:v libx264 -profile:v baseline -trellis 0 -subq 1 -level 32 -preset superfast -tune zerolatency -me_method epzs -crf 30 -threads 0 -bufsize 1 -refs 4 -coder 0 -b_strategy 0 -bf 0 -sc_threshold 0 -x264-params vbv-maxrate=2000:slice-max-size=1500:keyint=30:min-keyint=10: -pix_fmt yuv420p -an -f mpegts udp://192.168.1.8:5001 The ffplay command used to display the video (...)

4 août

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

• 20:07
  Command-line streaming webcam with audio from Ubuntu server in WebM format - mjtb Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to stream video and audio from my webcam connected to my headless Ubuntu server (running Maverick 10.10). I want to be able to stream in WebM format (VP8 video + OGG). Bandwidth is limited, and so the stream must be below 1Mbps. I have tried using FFmpeg. I am able to record WebM video from the webcam with the following: ffmpeg -s 640x360 \\ -f video4linux2 -i /dev/video0 -isync -vcodec libvpx -vb 768000 -r 10 -vsync 1 \\ -f alsa -ac 1 -i hw:1,0 -acodec libvorbis -ab 32000 -ar 11025 \\ -f webm /var/www/telemed/test.webm However (...)
• 17:28
  Why does ffmpeg command work in terminal but not subprocess.call - Brian Newest 'ffmpeg' Questions - Stack Overflow
  I reviewed the "similar questions", but those seem to refer to using the full path for ffmpeg to ensure using the same version, which I am already doing so posting my question. I am using a Mac runnning Sequoia 15.5, python 3, and ffmpeg 4.2.1. I'm trying to write a script that can convert flac to mp3 320k. If I use the following command in terminal everything works as intended: /usr/local/bin/ffmpeg -i "/Volumes/MainData/Media/Media Server/_Stage/03 - People Like Us - Aaron Tippin.flac" -b:a 320k -map_metadata 0 -id3v2_version 3 "/Volumes/MainData/Media/Media (...)
• 12:39
  How to stop ffmpeg remotely? - Adam Newest 'ffmpeg' Questions - Stack Overflow
  I'm running ffmpeg on another machine for screen capture. I'd like to be able to stop it recording remotely. FFMPEG requires that q is pressed to stop encoding as it has to do some finalization to finish the file cleanly. I know I could kill it with kill/killall however this can lead to corrupt videos. Press [q] to stop encoding I can't find anything on google specifically for this, but some there is suggestion that echoing into /proc//fd/0 will work. I've tried this but it does not stop ffmpeg. The q is however shown in the terminal (...)
• 00:27
  VFR input + h264_nvenc - output bitrate is based on initial frame rate when I want it to be time based [closed] - hedgehog90 Newest 'ffmpeg' Questions - Stack Overflow
  I have an HLS stream produced from a live VFR source in ffmpeg. The source consists of blocks of varying frame rate. The first 30 minutes might be 24fps, the next 30 minutes ⓐ 60fps. Although it is not standard for HLS to be VFR, it appears to playback perfectly well on various platforms I've tested. When I use the libx264 encoder with -crf + -maxrate parameters, I can get my desired bitrate per stream despite potentially wild frame rate fluctuations. But when I use the h264_nvenc encoder with -cq + -maxrate parameters (and practically every configuration (...)
• 05:00
  Shaka Packager not adding #EXT-X-ENDLIST to HLS playlist after stream ends - Arjit Newest 'ffmpeg' Questions - Stack Overflow
  I am using Shaka Packager for live streaming with HLS & DASH output. My setup is like this: RTMP stream is published to NGINX-RTMP. On exec, I start a transcoder (FFmpeg) and packager (Shaka Packager). On exec_publish_done, I stop both processes. Here’s the command I use to start Shaka Packager: "$SHAKA_PACKAGER_BIN" \\ "in=$VIDEO_720P_FIFO,stream=video,format=mp4,init_segment=$STREAM_OUTPUT_DIR/720p_init.mp4,segment_template=$STREAM_OUTPUT_DIR/720p_\\$Number\\$.m4s,bandwidth=3000000,hls_name=720p" \\  (...)

3 août

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

• 22:27
  How do I deploy Whisper.cpp stream.wasm on an EC2 instance? [closed] - tosUser Newest 'ffmpeg' Questions - Stack Overflow
  How do I deploy the whisper.cpp stream.wasm demo on a EC2 instance? The demo is available from the following git: https://github.com/ggml-org/whisper.cpp/tree/master/examples/stream.wasm I am fairly far along, but the program hangs on Preparing ... I do not know what is causing the issue. Here are the steps I have taken. (I am trying to make it brief, and provide more detail as necessary.) I cloned the repository and built it locally. It runs properly. I created an EC2 instance running Amazon Linux 2023, and uploaded the Whisper.cpp files to it. I (...) -- https://github.com/ggml-org/whisper.cpp/tree/master/examples/stream.wasm
• 19:55
  Vulnerability in file processing [closed] - alex Newest 'ffmpeg' Questions - Stack Overflow
  I have discovered a vulnerability in the file processing service. If I create an MPD file with a link inside it, then when processing with ffmpeg, an attacker can receive a request to their server, which can lead to serious security issues. Once they know the IP address, they can launch an attack. I'm not quite sure how to deal with this. Are there any libraries for analysing files for malicious content? Yes, I thought about restricting the container's network interface or running file processing services in a sandbox, but I still know very little about combating malicious code (...)

2 août

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

• 04:47
  Can not add tmcd stream using libavcodec to replicate behavior of ffmpeg -timecode option - Sailor Jerry Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to replicate option of command line ffmpeg -timecode in my C/C++ code. For some reasons the tcmd stream is not written to the output file. However the av_dump_format shows it in run time Here is my minimal test #include extern "C" #include #include #include #include #include #include #include bool checkProResAvailability() const AVCodec* codec = avcodec_find_encoder_by_name("prores_ks"); if (!codec) std::cerr << "ProRes codec not available. Please install FFmpeg with ProRes (...)
• 04:31
  ffmpeg libx264 settings to keep exact colors - vinni Newest 'ffmpeg' Questions - Stack Overflow
  does anyone have an idea how I need to edit these ffmpeg settings to keep the original colors? I'm trying to convert a video, but need to absolutely keep the rgb colors, as it's going to be embedded into a website with a background color. The parameters look currently like this: '-acodec aac -ac 2 -ab 160k ' '-vcodec libx264 -preset slow -profile:v baseline -level 25 ' '-maxrate 10000000 -bufsize 10000000 -vb 1200k -f mp4 ' '-threads 0'  (...)

1er août

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

• 13:09
  Unable to import audio on python using ffmpeg - Calebe Piacentini Newest 'ffmpeg' Questions - Stack Overflow
  I'm running my code on a VM, so I can't add it to my path. I want to do: audio = AudioSegment.from_mp3(path_mp3) audio.export(path_wav, format="wav") I keep getting: FileNotFoundError: [WinError 2] The system cannot find the file specified I tried GPT (and Claude, and Deepseek, etc....) and looking at other questions here posted, without sucess. I know I must have ffpmeg. I have download it and added the .exe at both my script folder (such as suggested elsewhere) and also tried adding the option directly to AudioSegmenter, as (...)

31 juillet

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

• 13:15
  Stream klv and video using ffmpeg [closed] - Dennis Jansky Newest 'ffmpeg' Questions - Stack Overflow
  I have a python program that launches an ffmpeg process where the process has two inputs 1. stdin (rawvideo) and 2. udp port (klv). klv_sender.py try: while True: sock.sendto(packet, (localhost, 4444)) except BrokenPipeError: pass ffmpeg command: ffmpeg -loglevel verbose -f rawvideo -vcodec rawvideo -pix_fmt bgr24 -s 704x480 -r 30 -i - -f data -i udp://0.0.0.0:4444 -map 0:v -c:v libx264 -preset ultrafast -tune zerolatency -map 1:d -c:d copy -f mpegts localhost:1234?pkt_size=1316 I see data coming from klv on port 4444 and video data is (...)

30 juillet

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

• 12:31
  How can I generate a metadata.mov file for higher-resolution Live Photos (e.g. 1440x2560)? - brijesh patel Newest 'ffmpeg' Questions - Stack Overflow
  I'm generating Live Photos programmatically for use as wallpapers on iOS. I'm using a known metadata.mov file bundled with the app (likely extracted from a working Live Photo with resolution 1080x1920). This setup works fine when I use a video of the same resolution. I'm using this open-source library to handle the video-to-LivePhoto conversion: https://github.com/TouSC/Video2LivePhoto However, when I try using a higher-resolution video (e.g. 2560x1440) to avoid black bars on high-resolution devices (like iPhone 14 Pro Max), the Photos app shows the Live (...) -- https://github.com/TouSC/Video2LivePhoto
• 10:32
  Write EPIPE after upgrade Node.js - Rougher Newest 'ffmpeg' Questions - Stack Overflow
  I am using this code for detecting audio replay gain. It was working well with Node.js 16, but after upgrading to Node.js 22, it started crashing a few times in an hour with this error: write EPIPE at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:87:19) errno: -32, code: 'EPIPE', syscall: 'write' My original code was static getReplayGainVolume(audioData: Buffer) // Calculate the mean volume of the audio file at the given filePath var ffmpeg = spawn('ffmpeg', [  (...)

29 juillet

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

• 22:08
  How can I decode MegaRace (93/94) .HNM videos? — FFmpeg fails and legacy tools are missing [closed] - L P Newest 'ffmpeg' Questions - Stack Overflow
  Goal I want to convert the original full‑motion videos shipped with MegaRace (DOS, 1993/94) from Cryo’s proprietary HNM format into a modern, playable container (e.g. lossless AVI/PNG sequence). Capturing the screen while the game runs is not an option: the target is the pure background animation (no sprites, no overlays, no DOSBox scaling filters, no subtitles). What I already have Extracted all *.HNM files out of MEGARACE.DAT with Game Extractor. (Directory listing: 100+ files from AZUR.HNM to VWBT5.HNM.) Verified that they are indeed (...) -- [1], [2], Game Media Formats DirectShow Filters
• 08:25
  How to compile latest FFmpeg Library for Android? - Timo Schuck Newest 'ffmpeg' Questions - Stack Overflow
  Struggling to put together a working and generally best practice build of current FFmpeg. There seems to be no up-to-date documents or tutorials. What does exist is full of outdated links or build-scripts that do not work.
• 07:01
  Input path errors while running FFMPEG and keeping subdirectory structure [closed] - piet koos Newest 'ffmpeg' Questions - Stack Overflow
  My goal is to reduce the size of all .ogg files found under the parent directory "Formatted", while keeping the sub-directories and files structure the same. Example .../Formatted/"test1, test2, test3 and so on"/"files.ogg" to .../Contributors/"test1, test2, test3 and so on"/"reduced_files.ogg" However. While the script runs ffmpeg it seems that the some input file paths gives "Error opening input: No such file or directory". eg. It either cuts off the 'h' of home or adds a '.' to the end of the file (...)

28 juillet

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

• 07:31
  how to combine several video random any one to create 1 new video? using ffmpeg? [closed] - Sky Moon Newest 'ffmpeg' Questions - Stack Overflow
  how to combine several video random any one to create 1 new video? for example, I have 10 videos: 01.mp4; 02.mp4 ... 10.mp4 I want to combine random 5 of them to create 1 video example: (01.mp4+ 03.mp4+ 04.mp4+ 06.mp4 + 08.mp4) = 1 new video (02.mp4+ 04.mp4+ 05.mp4+ 06.mp4 + 09.mp4) = 1 new video Similar: random combination of 50 videos of 1000 videos to create 1 new video?
• 06:55
  Write EPIPE after upgrade NodeJS - Rougher Newest 'ffmpeg' Questions - Stack Overflow
  I am using this code for detecting audio replay gain. It was working well with NodeJs 16, but after upgrading to NodeJs 22, it started crashing a few times in an hour with this error: write EPIPE at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:87:19) errno: -32, code: 'EPIPE', syscall: 'write' My original code was static getReplayGainVolume(audioData: Buffer) // Calculate the mean volume of the audio file at the given filePath var ffmpeg = spawn('ffmpeg', [  (...)

26 juillet

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

• 16:59
  Downloading a video using fluent-ffmpeg in nodejs and express - Apdo Elsaed Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a side project to download videos from Reddit, but they separate video and audio in different files. so i have to merge them first before downloading them in the client. i was able to do all of this as in the following snippet of code. const ffmpeg = require("fluent-ffmpeg"); const proc = new ffmpeg(); app.post('/download', async (req, res) => const audio = "some aduio link"; const video = "some video link"; proc.addInput(video) .output('$some path./video.mp4') .format('mp4')  (...)
• 14:01
  How is better to use ffmpeg with the ASP.NET Core, on Linux? - user8245660 Newest 'ffmpeg' Questions - Stack Overflow
  I've got the project (ASP.NET Core, on Linux) where are the several tasks, which relate to the video converting and extracting frames from the video file. I thought about the two possible options: using ffmpeg console utility using P/Invoke with the libavcodec library and others, which ffmpeg uses The second option is miles harder and may be very impractical, because it reminds me developing the new wrapper/library, instead of using the ready products. I've done googling, but there aren't well-done projects for the (...)
• 10:03
  How to write H264 raw stream into mp4 using ffmpeg directly - Yelsin Newest 'ffmpeg' Questions - Stack Overflow
  I want to wrap the H264 Nalus(x264 encoded) into mp4 using ffmpeg(SDK 2.1), but the output mp4 file could not play. I don't know how to set the pts and dts. Here's my code, using the code from Raw H264 frames in mpegts container using libavcodec and muxing.c from www.ffmpeg.org. My H264 stream has no B-Frame, every nalu starts with 00 00 00 01,the stream begins with sps pps then the h264 data. #include "stdafx.h" #include #include #include "Stream2Mp4.h" #include #include #include #include #include #include (...)

25 juillet

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

• 14:09
  FFMPEG remote IP camera over RTSP h.264 format to HLS Localhost m3u8 format [closed] - macmeyers50 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert the remote IP camera over RTSP to a localhost HLS format so that I can display it in a UI. I'm using a java library that only supports HLS over HTTP not remote IP camera. I'm under the impression FFMPEG can do this because I can write the HLS file just fine directly to my disc but when I change the target to something like http://localhost:8080/stream.m3u8 it cannot seem to connect to localhost. Below is my attempted FFMPEG command (IP/User/Pass left off) but I know that it can at least connect and read the RTSP camera (...) -- http://localhost:8080/stream.m3u8, https://ffmpeg.org/index.html#ffserv
• 20:55
  Cutting multimedia files based on start and end time using ffmpeg [closed] - Kalaiyarasan Newest 'ffmpeg' Questions - Stack Overflow
  I tried to cut the video using the start and end time of the video by using the following command: ffmpeg -ss 00:00:03 -t 00:00:08 -i movie.mp4 -acodec copy -vcodec copy -async 1 cut.mp4 By using the above command I want to cut the video from 00:00:03 to 00:00:08. But it is not cutting the video between those times instead of that it is cutting the video with first 11 seconds.
• 21:08
  How to make FFmpeg download only the required segments [closed] - daniil_ Newest 'ffmpeg' Questions - Stack Overflow
  I'm developing a tool, that create timelapse. For this purpose I use ffmpeg 7.1.1 verion. I have a playlist file called index.m3u8 (inside it there are URLs to TS segments—typically around 5,000 of them). Here’s a small excerpt: #EXTM3U #EXT-X-TARGETDURATION:12 #EXT-X-VERSION:6 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-PLAYLIST-TYPE:EVENT #EXT-X-START:TIME-OFFSET=8,PRECISE=YES #EXT-X-PROGRAM-DATE-TIME:2025-07-22T07:59:51.173Z #EXTINF:10.080, https://my-storage.io/receiver/archives/3a1b162d-392d-d45a-089a-dc93fb842a35/files/2025-07-22/07/59/1753171191173_aa_00000
• 14:13
  How to Stream Audio from Google Cloud Storage in Chunks and Convert Each Chunk to WAV for Whisper Transcription - Douglas Landvik Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project where I need to transcribe audio stored in a Google Cloud Storage bucket using OpenAI's Whisper model. The audio is stored in WebM format with Opus encoding, and due to the file size, I'm streaming the audio in 30-second chunks. To convert each chunk to WAV (16 kHz, mono, 16-bit PCM) compatible with Whisper, I'm using FFmpeg. The first chunk converts successfully, but subsequent chunks fail to convert. I suspect this is because each chunk lacks the WebM container's header, which FFmpeg needs to interpret the Opus codec correctly.  (...)

24 juillet

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

• 12:48
  Problem with seeking with ffmpeg with two sources (video + audio) [closed] - rgr Newest 'ffmpeg' Questions - Stack Overflow
  I'm having this problem with ffmpeg. I'm combining video and audio from two different files (video - reencode, audio - copy): ffmpeg -i avisynth.avs -i audio.mp4 -map 0:v -map 1:a -c:v libx264 -c:a copy out.mp4 and after this operation, when I load out.mp4 into VDub or Vegas, I have problems with seeking. The seek jumps to a different frame than it should. If I seek frame by frame, everything is fine.If I recompress out.mp4, everything is fine again. But if I seek to different frames in the same out.mp4, it jumps to a different frame than it should (...)
• 16:40
  How can I seek and read in a video file that is served by a web server? [closed] - Dan Newest 'ffmpeg' Questions - Stack Overflow
  How do you suggest to make an script to decode frames from an MP4 video by its URL without downloading the whole file just like what FFmpeg does with extracting frames out of a local file but I want to do the same by passing in a URL?
• 13:42
  FFmpeg: About filter_complex command [closed] - HJ Kim Newest 'ffmpeg' Questions - Stack Overflow
  I use this command. ffmpeg -i Input.mp4 -i logo.png -c:v h264_nvenc -filter_complex "[0:v]scale=-1:720[video];[1:v][video]scale2ref=(iw/ih)*ih/8/sar:ih/8[wm][base];[base][wm]overlay=10:10" output.mp4 But what does this mean? scale2ref=(iw/ih)*ih/8/sar:ih/8
• 09:57
  How to capture screenshots from a video URL [closed] - Dan Newest 'ffmpeg' Questions - Stack Overflow
  How do you suggest to make an script to capture screenshots from an MP4 video by it's URL without downloading the whole file just like what FFmpeg does with extracting frames out of a local file but I want to do the same by passing in a URL?

23 juillet

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

• 20:51
  How to terminate cv2.VideoCapture(rtsp_url) call if execution stalls due to RTSP camera issues? - sandeep.ganage Newest 'ffmpeg' Questions - Stack Overflow
  I have RTSP URLs for 80 total cameras. I am trying to get a screenshot from every camera using cv2.VideoCapture(rtsp_url). I am doing some image processing operations on the captured screenshots from each camera. I have total 80 such URLs for each camera. A sample RTSP URL is: rtsp://192.168.0.101:554/user=admin_password=oyXv12aW_channel=1_stream=0.sdp?real_stream Now, sometimes due to the network or other technical issues, some of the cameras temporarily don't function. In that case cv2.VideoCapture(rtsp_url) takes more than 30 seconds to return. In a normal scenario (...)
• 15:40
  ffmpeg concat of .ts files where issues in one file causes all audio/video after to be out of sync [closed] - The Shoe Shiner Newest 'ffmpeg' Questions - Stack Overflow
  I'll start by saying I need a solution that can be automated in code, i.e. not one that requires me to manually select timestamps and trim files, and unfortuntely my media server (Jellyfin) only has access to ffmpeg, so I'm looking for an ffmpeg solution. I have a set of .ts files that were recorded from a live stream. The media server will immediately restart the recording if for some reason ffmpeg fails during the copy process. So I end up with multiple files that I can then concatenate. Most of the time this works fine. The current issue is that (as happens (...)
• 01:17
  ffmpeg create blank screen with text video [closed] - kalafun Newest 'ffmpeg' Questions - Stack Overflow
  I would like to create a video consisting of some text. The video will only be 0.5 seconds long. The background should just be some colour, I am able to create such video from a photo, but cant find anywhere how this could be done without a photo, just using text to create such video.
• 02:15
  I frame removal for Datamoshing using FFMPEG C++ [closed] - Riku Newest 'ffmpeg' Questions - Stack Overflow
  So for my case IFRAMERM I'm trying to skip the encoding of H264 I-frames from the 40th frame to the 199th frame in hopes to create the iframe datamosh affect seen here: Problem: The output video produced seems to just repeat the same frame and the video duration displays that it is an hour long. It doesn't seem like removing I-frames is causing the subsequent P-frames to incorrectly apply their motion data to the preceding frame, resulting in visual distortions and a "melting" effect. The full code resources can be found at the Github repo: (...) -- output video, https://github.com/JaylenLuc/datamoshing

22 juillet

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

• 11:24
  BT709 ffmpeg w/ Java stuck on reading raw input from the process [closed] - hexadecimal233 Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently creating a Minecraft mod which plays video with certain filters. When using image2pipe from ffmpeg to read raw data, everything goes fine when opening any video with no colorspace settings. When I try to select a file with BT709 color space, it seems it won't read the full frame and keeps looking for new data. ProcessBuilder pb = new ProcessBuilder( "ffmpeg", "-i", filename, "-ss", String.valueOf(startFrame / videoFps), "-vf", String.format("scale=%d:%d:force_original_aspect_ratio=decrease,pad=%d:%d:(ow-iw)/2:(oh-ih)/2,fps=%.2f",  (...)
• 13:42
  Enable Quality Selector Control in Angular Using Video.js - Abhay Singh Newest 'ffmpeg' Questions - Stack Overflow
  I am using Video.js in an Angular 19.1.3 application, with version 8.21.0 of Video.js. I have successfully set up an HLS stream using a master index.m3u8 file, and the player automatically switches to lower quality segments when the network is slow, and to higher quality when the network is good. This part works as expected. However, I would like to add a manual quality selection option to allow users to choose the video quality themselves. Despite trying several plugins (such as videojs-hls-quality-selector and videojs-contrib-quality-levels), I haven't been able to get it (...)
• 08:07
  Difference behaviour between Ubuntu and Windows for popen, _popen [closed] - Humam Helfawi Newest 'ffmpeg' Questions - Stack Overflow
  I need to open FFMPEG pipe and write frames data to that pipe. I am using this code: #ifdef _WIN32 #define POPEN _popen #define PCLOSE _pclose #else #define POPEN popen #define PCLOSE pclose #endif // FFmpeg command to receive raw BGR24 data and encode with libx264 std::ostringstream oss; oss << "ffmpeg -y -f rawvideo -pixel_format bgr24 " << "-video_size " << width << "x" << height << " " << "-framerate " << fps << " -i - " << "-c:v libx264 -preset ultrafast "  (...)
• 08:56
  How to read ip camera(rtsp) frames with python smoothly and without and delay and lagging for a long reading? [closed] - Ayub Alam Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a client project to count cement bags on a trolley. The setup is as follows: Cement bags are placed on a trolley, which is then loaded into a wagon. During this process, I need to count how many bags are loaded. For this task, I am using the YOLOv11n-seg model. To capture the video feed, I am reading an IP camera stream via an RTSP link. However, during detection and counting, the frames often lag or delay, disrupting smooth processing. Initially, I tried OpenCV for camera streaming, but it had performance issues. Then, I switched to GStreamer, but the problem (...)

21 juillet

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

• 18:19
  FFmpeg-wasm unpredictable errors with next js - hjtomi Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg-wasm in next-js. Whenever I execute an ffmpeg command it has a chance that it throws a runtime error "memory access out of bounds". In this case I created a page that has an file selection html element and a button that converts each image to .jpeg format with the following command: await ffmpeg.exec(['-i', originalFileName, '-q:v', '5', convertedFileName]); I have tried the same process with different images, extensions, sizes, restarting the application, restarting the computer, different browsers, mobile/desktop and (...)
• 13:50
  How to execute an ffmpeg command with C# [closed] - Paul Newest 'ffmpeg' Questions - Stack Overflow
  How can I execute the following command against FFmpeg in C#? mkfifo temp1.a mkfifo temp1.v mkfifo temp2.a mkfifo temp2.v mkfifo all.a mkfifo all.v ffmpeg -i input1.flv -vn -f u16le -acodec pcm_s16le -ac 2 -ar 44100 - > temp1.a < /dev/null & ffmpeg -i input2.flv -vn -f u16le -acodec pcm_s16le -ac 2 -ar 44100 - > temp2.a < /dev/null & ffmpeg -i input1.flv -an -f yuv4mpegpipe - > temp1.v < /dev/null & ffmpeg -i input2.flv -an -f yuv4mpegpipe - < /dev/null | tail -n +2 > temp2.v ; & cat temp1.a temp2.a > all.a (...)
• 03:34
  How to Convert u-law 8000 Hz Audio Files to OPUS in Python - user60108 Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a Python project where I need to convert audio files from μ-law format with an 8000 Hz sampling rate to OPUS format. The challenge is to keep the original channels separated in the conversion process. Despite several attempts with different methods and libraries, I haven't succeeded yet. I'm looking for advice or a Python library that can efficiently handle this conversion. What I've tried: 1- Using pydub to Load and Export Files: Attempted to load .au files with pydub and export them as OPUS. This approach resulted in ffmpeg related errors, (...)
• 01:32
  FFmpeg-wasm unpredictable erros with next js - hjtomi Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg-wasm in next-js. Whenever I execute an ffmpeg command it has a chance that it throws a runtime error saying memory access out of bounds. In this case I created a page that has an file selection html element and a button that converts each image to jpeg format with the following command: await ffmpeg.exec(['-i', originalFileName, '-q:v', '5', convertedFileName]); I have tried the same process with different images, extensions, sizes, restarting the application, restarting the computer, different browsers, mobile/desktop and sometimes (...)

20 juillet

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

• 20:34
  FFmpeg WASM Compilation with Hardware-Accelerated H.264/HEVC Decoding - gt-devel Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a media processing SDK with a substantial C++ codebase that currently uses FFmpeg for video decoding on native platforms (Windows/Linux). I need to port this to browsers while preserving both the existing C++ architecture and performance characteristics. The WASM approach is critical for us because it allows leveraging our existing optimized C++ media processing pipeline without a complete JavaScript rewrite, while maintaining the performance benefits of compiled native code. The Challenge: WebAssembly runs in a browser sandbox (...)
• 17:40
  Is it possible to add an outline in a chroma-key video? [closed] - Mouaad Abdelghafour AITALI Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible with FFmpeg to add an outline to a chroma-keyed video? My goal is to blend a background video with a foreground video, where the foreground has a white outline: My code blends the background and foreground videos by removing the chroma key and replacing it with the background. I want to keep this functionality but add a white outline around the foreground video. public static String overlayVideo(String backgroundCroppedPath, String foregroundVideoPath, String overlayedVideoPath, double fgDurationSec, OutputAudioSource audioSource) (...) -- ,
• 13:05
  Configure and Build OpenCV to Custom FFMPEG Install - enderland Newest 'ffmpeg' Questions - Stack Overflow
  I cannot seem to configure OpenCV to link to a non-/usr/lib set of FFMPEG libraries. My LD_LIBRARY_PATH contains a direct link to the folder for the custom install of FFMPEG: LD_LIBRARY_PATH=/pathto/ffmpeg-0.10.2/lib Additionally, I've configured pkgconfig as: PKG_CONFIG_PATH=/samepathto/ffmpeg-0.10.2/lib/pkgconfig/ Within CMake however I cannot find any setting for path to FFMPEG - either in basic or custom. The only setting related to FFMPEG appears to be WITH_FFMPEG type setting (set to ON). I can build OpenCV but it (...)

19 juillet

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

• 10:11
  Is it possible to add an outline/border/edge to a person in a chroma-key video? [closed] - Mouaad Abdelghafour AITALI Newest 'ffmpeg' Questions - Stack Overflow
  I hope you're doing well. Is it possible to use FFmpeg to add an outline to a chroma-keyed video, like in the images below? My goal is to blend a background video with a foreground video, where the foreground has a white outline. Here’s my current code that blends the background and foreground videos by removing the chroma key and replacing it with the background. I want to keep this functionality but add a white outline effect around the foreground video. Thank you so much in advance for your help. public static String overlayVideo(String (...) -- ,
• 15:50
  x265 encrypts video with fps=25 instead of 24 [closed] - Peter Irich Newest 'ffmpeg' Questions - Stack Overflow
  When I had AMD FX-8350 and Ryzen 5 3600 and used x264, I can recode mkv-files to size decreasing succesfully. 1st, I got all audio-tracks and transformed its to ac3. 2nd, I decoded video-track to *.y4m by command /usr/bin/ffmpeg -i name.mkv -an -sn -map 0 -fps_mode vfr -f yuv4mpegpipe name.y4m > name_y4m.err 2>&1 3rd, I again encrypt video from *.y4m by command /usr/bin/x264 --log-level warning --input-res $nwx$nh --preset veryslow -o cmpr_v.mkv name.y4m > cmpr_v.err 2>& 1 and then merged audio-track and cmpr_v.mkv. It worked (...)
• 08:08
  ffmpeg: use drawtext with quote inside text [closed] - Sulli Newest 'ffmpeg' Questions - Stack Overflow
  I have a variable that takes its content from a file (I can't change the content of the file): echo $variable It's my variable I want to print that string on a video with ffmpeg: ffmpeg -nostdin -i input.mp4 -vf drawtext="text='$variable': fontcolor=white:box=1:boxcolor=blackⓐ0.8: x=h/70: y=h/5*4.2" -codec:a copy output.mp4 when I do that, the quote inside $variable is not printed. I have read here that I need to escape the quote multiple times, some say 5 times, some say more. So I have tried to use (...)
• 08:49
  How do I get duration of an In Memory Video in Python / Django? - Lucas Tonon Newest 'ffmpeg' Questions - Stack Overflow
  So I was successfully using the following code to get the duration of a saved video in Django. def get_video_length(file_path): command = [ 'ffprobe', '-v', 'error', '-show_entries', 'format=duration', '-of', 'default=noprint_wrappers=1:nokey=1', file_path ] try: output = check_output( command, stderr=STDOUT ).decode() except CalledProcessError as e: output = e.output.decode() return output But now I need to get the (...) -- https://docs.djangoproject.com/en/2.2/_modules/django/core/files/uploadedfile/

18 juillet

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

• 22:28
  Continuously stream audio from .m3u8 file between FFmpeg processes - demerf Newest 'ffmpeg' Questions - Stack Overflow
  My webserver streams audio using HLS. I'm using a Python script to create an FFmpeg process that takes a random MP3 file and segments it so it can be delivered by the webserver. My issue occurs when the track ends. The player stops and the page needs to be reloaded to start the next track. From my understanding the .m3u8 file is continuously updating with the latest segment which the browser asks for and it should be seamlessly transitioning between tracks because the segment number is incrementing properly across processes. Code starting the FFmpeg process: def (...)
• 16:03
  How to install pytorch and opencv using a fixed conda channel order? - progquester Newest 'ffmpeg' Questions - Stack Overflow
  Conda creates a pristine environment, configures a fixed channel order, and then starts installing pytorch torchvisioni pytorch-cuda and opencv, and it prompts for dependency conflicts. Do I have to install opencv via pip? The same thing happens with python 3.10 $ conda create -n my_env3.9 python=3.9 $ conda activate my_env3.9 $ conda install pytorch torchvision pytorch-cuda=11.8 opencv Channels: - pytorch - nvidia - conda-forge - defaults Platform: linux-64 Collecting package metadata (repodata.json): done Solving environment: (...)

17 juillet

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

• 14:32
  macOS: ffmpeg runs OK but ffprobe fails to find a dynamic library [closed] - Kim Silverman Newest 'ffmpeg' Questions - Stack Overflow
  I'm running macOS 15.5 on an M4 MacBook Pro. I have some .mov movie files, produced by taking screen recordings. I want to extract the audio from them, normalize its volume (it contains speech which is too quiet), perhaps also attenuating some background noise, and then reinsert the modified audio back into the movies. It seems to me that ffmpeg will support these needs. It has an accompanying tool ffprobe which will report on the content structure (how many audio tracks, etc) of a movie file. I installed ffmpeg using brew and can successfully run it: $ ffmpeg (...)
• 02:26
  Replacing deprecated AVStream codec parameter in libav - xtingray Newest 'ffmpeg' Questions - Stack Overflow
  A long time ago, I implemented a C++ class to create MP4 video files from an array of images. The code works pretty well, nevertheless, I discovered a deprecation warning that I want to rid off. The parameter "codec" from the AVStream structure has been deprecated and I want to replace it. Here is my current working code: AVOutputFormat *outputFormat = av_guess_format("ffh264", movieFile.toLocal8Bit().data(), nullptr); if (!outputFormat) return false; enum AVCodecID videoCodecID = outputFormat->video_codec; AVCodec *videoCodec = (...)

16 juillet

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

• 23:27
  How can I export transparent gifs with ffmpeg without weird artefacts? (Source Left, Result Right with the weird pink outline) [closed] - Lunique Kero Newest 'ffmpeg' Questions - Stack Overflow
  I get this weird pink artifact when I try exporting using this command y -filter_complex "[0:v] fps = 20, split[a][b];[a] palettegen[p];[b][p] paletteuse" Is there a way to make the pink instead be fully white? I tried doing the AVI to Gif conversion on EZGif and they do it perfectly, I'm trying to figure out what is missing in my command enter image description here -- enter image description here

14 juillet

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

• 19:04
  FFMPEG : Invalid data found when processing input [closed] - Schüler Newest 'ffmpeg' Questions - Stack Overflow
  I am unable to upload mp3 or mp4 is there any specific path format? Here is my code. I have tried this also ffmpeg -i Video/" + Name + " -ss 01:30 -r 1 -an -vframes 1 -f mjpeg Video/" + Name + ".jpg exec("ffmpeg -y -i Video/" + Name + " -map_metadata -1 -ab 192k Video/" + Name + ".jpg", function(err) if (err) console.log(err) console.log('Done', 'Image' : 'Video/' + Name + '.jpg'); ); Here is the error Error: Command failed: ffmpeg -y -i (...)
• 21:22
  Why can't I compile ffmpeg's shared libraries? errors with "recompile with -fPIC" [closed] - Vigrond Newest 'ffmpeg' Questions - Stack Overflow
  error: LD libavcodec/libavcodec.so.61 /usr/bin/ld: /home/user/ffmpeg_build/lib/libopus.a(celt.o): relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: failed to set dynamic section sizes: bad value collect2: error: ld returned 1 exit status make: *** [ffbuild/library.mak:119: libavcodec/libavcodec.so.61] Error 1 so far I've removed --enable-libfdk_aac and --enable-libmp3lame with the same errors, and now it is erroring on libopus I thought -fPIC could be done with (...)
• 09:24
  Can't import moviepy due to missing ffmpex.exe - SilentGrove_99 Newest 'ffmpeg' Questions - Stack Overflow
  I was trying to create an application with python using the moviepy library. I installed it using: pip install moviepy I found this from a MoviePy crash-course: # Import everything needed to edit video clips from moviepy.editor import * # or from moviepy import * # moviepy v2 after removal of editor After trying to run this line i get this error: Python 2.7.13 (v2.7.13:a06454b1afa1, Dec 17 2016, 20:42:59) [MSC v.1500 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> # Import everything (...)

13 juillet

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

• 12:51
  Error in writing video file using moviepy and ffmpeg - Divakar Sharma Newest 'ffmpeg' Questions - Stack Overflow
  I have been working with moviepy library for the first time. I have a video clip around 7 hours long, and I'd like to clip it into small clips. I have a list of start and end time. video = VideoFileClip("videoFile.mp4") clips = [] for cut in cuts: clip = video.subclip(cut[0], cut[1]) clips.append(clip) clips clip = video.subclip("7:32:18", "7:38:38") clips.append(clip) for clip, title in zip(clips, title_list): clip.write_videofile(title + '.mp4', threads=8, fps=24, audio=True, (...)

12 juillet

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

• 02:05
  How can I use physical computer's GPU on VMware Workstation? [closed] - ching Newest 'ffmpeg' Questions - Stack Overflow
  I want to use the GPU to accelerate video transcoding time by using FFmpeg on the virtual machine, VMware Workstation. When I use the command lspci | grep VGA, the output is 00:0f.0 VGA compatible controller: VMware SVGA II Adapter It seems that I only can use its own Graphic Card on VMware, right? How can I use my host computer's GPU, NVIDIA Quadro K2000, from a program running in a guest VM? Or is there another solution that can solve the problem mentioned in the (...)
• 15:59
  ffmpeg dshow and ddagrab desync [closed] - Light Guardian Newest 'ffmpeg' Questions - Stack Overflow
  so i have a code for screen capture ffmpeg.exe -hide_banner ^ -f dshow -i audio="virtual-audio-capturer" ^ -f dshow -i audio="ⓐdevice_cm_33D9A762-90C8-11D0-BD43-00A0C911CE86\\wave_8049B44D-EB44-4706-83C2-7480DCD60587" ^ -filter_complex "[0:a][1:a]amix=inputs=2,volume=1.5[a];ddagrab=0:framerate=30[v];" ^ -map "[v]" -map "[a]" ^ -c:v h264_nvenc -rc vbr -cq 36 -qmin 29 ^ -c:a aac ^ "vid.mkv" first audio input - system sound second audio input - my mic The main problem is that the sound lags behind the video by about 0.5 seconds. Also, (...)
• 14:20
  FFMPEG Python: Encountered scale(1920, 1080) with multiple outgoing edges with same upstream label None; a `split` filter is probably required - Lysander Cox Newest 'ffmpeg' Questions - Stack Overflow
  Here is the code in question: for comment in thread['comments']: commentClips += fragmentConcat(comment, filePrefix) staticClip = ffmpeg.input('assets/static.mp4') commentClips.append(staticClip .filter('setsar', 1, 1) .filter('scale', 1920, 1080) ) commentClips.append(staticClip.audio) This code generates the following error: ValueError: Encountered scale(1920, 1080) with multiple outgoing edges with same upstream label None; a `split` filter is probably required I have tried (...)
• 06:10
  AVURLAsset tracks is empty, but video/audio is playable [closed] - Paltr Newest 'ffmpeg' Questions - Stack Overflow
  I have video that lives here: http://195.16.112.71/adaptive/66aebabb-2632-44fc-abf1-df29bca6b941.video/66aebabb-2632-44fc-abf1-df29bca6b941.m3u8 Ffmpeg says that this video has 5 tracks and it's correctly. But if I use AVURLAsset with that link it says me that there isn't any tracks: NSArray* const tracks = asset.tracks; // it's empty I modified Apple's StichedStreamPlayer sample to reproduce this problem, it lies here: https://yadi.sk/d/hV3jfbx1Z9sfC Simply click 'Load Movie', than the (...) -- https://yadi.sk/d/hV3jfbx1Z9sfC

11 juillet

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

• 14:05
  No accelerated colorspace conversion found from yuv420p to argb - Zac Chan Newest 'ffmpeg' Questions - Stack Overflow
  I am a novice at ffmpeg and have recently taken over a code base built by a previous engineer. The FFmpeg code is on an app engine that will edit the videos when they are uploaded. This code generated a title animation that will later be used as an overlay. exports.generateTitleAnimation = function(metadata, destPath, options = ) const peeqLogoPath = "/app/assets/peeq-logo.png"; const whiteBarMovPath = "/app/assets/whiteBar.mov"; const titleFontPath = "/app/assets/Sofia-Pro-Black.otf"; const dateStrFontPath = "/app/assets/Sofia-Pro-Medium.otf"; const (...)

10 juillet

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

• 20:49
  torchaudio can't find FFmpeg - KJ H Newest 'ffmpeg' Questions - Stack Overflow
  Windows, vscode, Python 3.11.4-64bit import torch import torchaudio print(torch.__version__) print(torchaudio.__version__) print(torchaudio._extension._FFMPEG_INITIALIZED) 2.0.1+cu117 2.0.2+cu117 False and i try torchaudio._extension._init_ffmpeg() Traceback (most recent call last): File "C:\\Users\\USER\\AppData\\Local\\Programs\\Python\\Python311\\Lib\\site-packages\\torchaudio\\_extension\\utils.py", line 85, in _init_ffmpeg _load_lib("libtorchaudio_ffmpeg") File (...)
• 06:06
  Decoding pcm_s16le with FFMPEG? - Davide Caresia Newest 'ffmpeg' Questions - Stack Overflow
  i have a problem decoding a wav file using ffmpeg. I'm new to it and i'm not quite used to it. In my application i have to input the audio file and get an array of samples to work on. I used ffmpeg to create a function that gets in input the path of the file, the position in time where to start to output the samples and the lenght of the chunk to decode in seconds. When I try to decode the file harp.wav everything runs fine, and I can plot the samples as in the image plot-harp.png The file is a WAV file encoded as: pcm_u8, 11025 Hz, 1 channels, u8, 88 (...)

9 juillet

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

• 18:47
  How to convert audio files from mp4 to mp3 using applescript? - MBUST Newest 'ffmpeg' Questions - Stack Overflow
  Can someone please help me understand how to convert audio files from mp4 to mp3 using AppleScript? I have tried scripting VLC or Sound Studio but the commands don't seem to come close to doing that. I downloaded and installed ffmpeg but I don't know the syntax to use. I tried something like this with ffmpeg: tell application "Finder" set CurrentPath to container of (path to me) as alias set OriginalFile to CurrentPath & "ASProcessing:SoundToProcess.mp4" as string set NewFile to CurrentPath & "ASProcessing:NewFile.mp3" as (...)
• 20:08
  Error Installing mobile-ffmpeg-full-gpl (4.4.LTS) via CocoaPods - 404 Not Found - Muhammad Accucia Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to install mobile-ffmpeg-full-gpl (4.4.LTS) in my iOS project using CocoaPods, but I am encountering a 404 error when CocoaPods attempts to download the framework. Here is the error message: \\[!\\] Error installing mobile-ffmpeg-full-gpl \\[!\\] /usr/bin/curl -f -L -o /var/folders/78/lk7swzb97ml4dt3zd9grny0c0000gn/T/d20250201-6580-dtli8h/file.zip https://github.com/tanersener/mobile-ffmpeg/releases/download/v4.4.LTS/mobile-ffmpeg-full-gpl-4.4.LTS-ios-framework.zip --create-dirs --netrc-optional --retry 2 -A 'CocoaPods/1.15.2 (...)
• 17:53
  ffmpeg segment doesn't show file size update in real time - Lucas Cardoso Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to run ffmpeg mp3 stream with segmentation for each hour. Everything is working perfectly, except for one thing: when i run the command, the file size doesn't grow in real-time as i need, it only grows in packages of 256k. Is there a way to turn a "real-time mode"? I'm using ubuntu 18.04 with ffmpeg 3.4.6 This is the code i'm trying to run on linux terminal: ffmpeg -i http://radiocentova.conectastm.com:8363/stream -y -acodec libmp3lame -b:a 16k -ac 1 -ar 11025 -vn -strftime 1 -f segment -segment_time 3600 -flush_packets 1 (...) -- ,
• 06:02
  av1 -colorspace bt709 Error reinitializing filters [closed] - Vox Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg 7.1.1 svt-av1 2.3.0 command: ./ffmpeg7 -y -i src.mp4 -c:v libsvtav1 -colorspace bt709 -an -f mp4 out.mp4 src.mp4: color_range=tv color_space=ycgco color_primaries=bt709 color_transfer=bt709 I get error: [vf#0:0 ⓐ 0x56391fc13e00] Error reinitializing filters! [vf#0:0 ⓐ 0x56391fc13e00] Task finished with error code: -22 (Invalid argument) [vf#0:0 ⓐ 0x56391fc13e00] Terminating thread with return code -22 (Invalid argument) [vost#0:0/libsvtav1 ⓐ 0x56391fc13fc0] Could not open encoder before EOF [vost#0:0/libsvtav1 ⓐ (...)
• 13:49
  FFmpeg Not Working on Windows Opens New CMD Window Then Closes [closed] - D Plus Newest 'ffmpeg' Questions - Stack Overflow
  I recently downloaded the FFmpeg binary for Windows. I unzipped it navigated to the bin folder using CMD, and tried to run ffmpeg -version But when I do that, instead of showing any output, it opens a new CMD window for a second and then it closes immediately. The original CMD stays empty no errors, no output. I've tried: Navigating manually to the bin folder using cd Calling .\\ffmpeg.exe -version Using full path like "C:\\path\\to\\ffmpeg\\bin\\ffmpeg.exe" -version Checking if the .exe file is blocked in Properties (nothing to unblock) Redirecting (...)
• 12:24
  ffmpeg rotate filter - how to format in complex filter [closed] - Giles Bradshaw Newest 'ffmpeg' Questions - Stack Overflow
  I can't get this to work and wondering if anyone could help command is ffmpeg -y -i "input/002 David Lynch Music Video.mp4" -filter_complex "[0:v]rotate=-185:ow=rotw(iw,ih):oh=roth(iw,ih):c=blackⓐ0[clip_0155_0_d16f34]" -map [clip_0155_0_d16f34] -c:v libx264 -preset veryfast -crf 23 -r 30 -vsync 2 -pix_fmt yuv420p -fflags +genpts -an /tmp/video_montage_si9nw2x2/clip_0155_0_d16f34.mp4 it gives me [AVFilterGraph ⓐ 0x5557af6a6c80] No such filter: 'ih):oh' Error initializing complex filters. Invalid (...)
• 05:43
  Can I use t with drawbox to simulate a playhead over a waveform in a generated video? - terrorrussia-keeps-killing Newest 'ffmpeg' Questions - Stack Overflow
  I want to simulate a playhead moving over a waveform, like when playing a track in an audio editor. As far as I understand, I can generate this effect if I have both the audio file and an image of the waveform. declare -r DURATION=$(ffprobe -i audio.flac -show_entries format=duration -v quiet -of csv="p=0") ffmpeg -hide_banner -loop 1 -framerate 30 -i waveform.png -i audio.flac \\ -filter_complex " drawtext=text='%pts\\\\:hms -- %n -- %pts\\\\:flt':x=32:y=32:fontsize=24:fontcolor=blackⓐ0.75:box=1,  (...)
• 01:57
  UserWarning: x bytes wanted but 0 bytes read at frame index y (out of a total z frames), at time q sec. Using the last valid frame instead - Wiz Newest 'ffmpeg' Questions - Stack Overflow
  I have a script which subclips a larger video and then stitches needed parts together using concatenate and write video file in moviepy. But the problem is everytime i run the script i get the video but the audio is off sync, usually the audio starts normally, but over time becomes delayed. I suspect it is because i want to concatenate around 220 smaller mp4 videos into one big mp4 video, but every smaller clips receives the error:'UserWarning: In file test.mp4, 1555200 bytes wanted but 0 bytes read at frame index y (out of a total y+1 frames), at time x sec. Using the last (...)