22 September

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

• 14:34
  Resampling audio with FFMPEG LibAV - FennecFix Newest 'ffmpeg' Questions - Stack Overflow
  Well, since FFMPEG documentation and code examples are absolute garbage, I guess my only choise is to go here and aks. So what I'm trying to do is simply record audio from microphione and write it to the file. So I initialize my input and out formats, I get an audio packet decode it, resample, encode and write. But everytime I try to play and audio there's only a stub of data. It seems like for some reason it writes only a start packet. Which is still very strange and let me explain why: if((response = swr_config_frame(resampleContext, audioOutputFrame, frame)  (...)
• 14:30
  Set the filename downloaded via youtube-dl to a variable - Jim Jamil Newest 'ffmpeg' Questions - Stack Overflow
  This is the current script, it's a Windows batch file that prompts for a Youtube url and then downloads the best audio in m4a. It's basically cobbled together and uses aria2 to manage the download. ⓐecho off SETLOCAL ENABLEDELAYEDEXPANSION (set /p var1="Url? " && youtube-dl -f bestaudio[ext=m4a] --external-downloader aria2c --external-downloader-args "-j 16 -s 16 -x 16 -k 5M" --restrict-filenames -o "%%(title)s.%%(ext)s" --add-metadata --embed-thumbnail !Var1!) ENDLOCAL pause After asking for the url, I want to also prompt the user to input (...)
• 14:08
  How to suspend and resume ffmpeg during encoding? - guidop21 Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFMPEG to split a video into many 60 second video clips using a camera with the following command: ffmpeg -f dshow -rtbufsize 2000M -i video="Game Capture HD60 S (Video) (#01)" -preset slow -codec:a libfdk_aac -b:a 128k -codec:v libx264 -pix_fmt yuv420p -b:v 1000k -minrate 500k -maxrate 2000k -bufsize 2000k -vf scale=854:480 -f segment -segment_time 60 -reset_timestamps 1 -flush_packets 1 "C:\\Program Files (x86)\\ffmpeg\\test\\clips\\testfile_%02d.mp4" I would also like to be able to do suspend and resume. How can I do? Thank (...)
• 14:02
  Upgrade ffmpeg (or rust) on OSX 10.12 cannot find make - gemp Newest 'ffmpeg' Questions - Stack Overflow
  Trying to brew upgrade ffmpeg on OSX 10.12 Sierra but when it arrived to install rust I had the following error: make: error: unable to find utility "make", not a developer tool or in PATH xcodebuild: error: SDK "/Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk" cannot be located. clang: error: unable to find utility "clang", not a developer tool or in PATH But which make gives /usr/bin/make and xcrun make is recognized and ls -l /Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk gives lrwxr-xr-x 1 root wheel 10 Dec 21 2017 (...)
• 13:28
  FFMPEG fails while processing MOV files - Tom Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert video files to DASH format. All videos work great except MOV videos. I'm using the following command: /usr/local/bin/ffmpeg -y -i /path/to/mov/video.mov -c:v libx264 -c:a aac -bf 1 -keyint_min 25 -g 250 -sc_threshold 40 -use_timeline 1 -use_template 1 -init_seg_name 'video_init_$RepresentationID$.$ext$' -media_seg_name 'video_chunk_$RepresentationID$_$Number%05d$.$ext$' -seg_duration 10 -hls_playlist 0 -f dash -adaptation_sets -0:s -map 0 -s:v:0 854x480 -b:v:0 750k -strict -2 -threads 12 /output/path/video.mpd I get (...)
• 12:48
  ffmpeg -var_stream_map Invalid keyval "v:0 - rmrf fly Newest 'ffmpeg' Questions - Stack Overflow
  the ffmpeg command is correct, use ffmpeg command execute at command line is ok， int windows10 use java exec the command is ok , by only in linux when i use java exec the ffmpeg command throw expection the command : ffmpeg -i /data/vsftpd/Anchor.mp4 -b:v:0 1000k -b:v:1 256k -b:a:0 64k -b:a:1 32k -map 0:v -map 0:a -map 0:v -map 0:a -f hls -var_stream_map "v:0,a:0 v:1,a:1" -hls_segment_filename 'file_%v_%03d.ts' out_%v.m3u8 enter image description here [hls ⓐ 0xd31b5c0] Invalid keyval "v:0 [hls ⓐ 0xd31b5c0] Variant stream info update failed (...) -- enter image description here
• 11:08
  Adding trimming option to Youtube-dl audio script - Jim Jamil Newest 'ffmpeg' Questions - Stack Overflow
  This is the current script, it's a Windows batch file that prompts for a Youtube url and then downloads the best audio in m4a. It's basically cobbled together and uses aria2 to manage the download. ⓐecho off SETLOCAL ENABLEDELAYEDEXPANSION (set /p var1="Url? " && youtube-dl -f bestaudio[ext=m4a] --external-downloader aria2c --external-downloader-args "-j 16 -s 16 -x 16 -k 5M" --restrict-filenames -o "%%(title)s.%%(ext)s" --add-metadata --embed-thumbnail !Var1!) ENDLOCAL pause After asking for the url, I want to also prompt the user to input (...)
• 11:01
  FFMPEG error when saving NDI stream to mp4 - user1163234 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to record a NDI stream to a MP4 file(I want to stream the mp4 to rtmp endpoint after saving file). However I am getting this error when running this class. https://github.com/WalkerKnapp/devolay/blob/master/examples/src/main/java/com/walker/devolayexamples/recording/RecordingExample.java Error: Connecting to source: DESKTOP-GQNH46Q (Ari PC output) [file ⓐ 0x7fb4f2d48540] Setting default whitelist 'file,crypto' x265 [info]: HEVC encoder version 0.0 x265 [info]: build info [Mac OS X][clang 8.1.0][64 bit] 8bit+10bit+12bit x265 [info]: (...) -- https://github.com/WalkerKnapp/devolay/blob/master/examples/src/main/java/com/walker/devolayexamples/recording/RecordingExample.java
• 10:53
  Cutting a video without re encoding using ffmpeg and nodejs (fluent-ffmpeg) - foufrix Newest 'ffmpeg' Questions - Stack Overflow
  I have a quick question, I'm trying to do a cloud video editor, and i want to be able to cut out video usng nodejs. I'm using fluent-ffmpeg. Here is my code : const cutVideo = async (sourcePath, outputPath, startTime, duration) => console.log('start cut video'); await new Promise((resolve, reject) => ffmpeg(sourcePath) .setFfmpegPath(pathToFfmpeg) .setFfprobePath(ffprobe.path) .output(outputPath) .setStartTime(startTime) .setDuration(duration) .on('end', function (err) if (!err)  (...) -- fluent-ffmpeg
• 10:34
  ffmpeg arguments with flutter for video upload to firebase - ebg11 Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to use ffmpeg to compress a videos file size so I can upload to firebase storage. I've ran the code on windows cmd and it works. But when i run it on flutter the quality of the video is terrible. I have also specified many values for the -crf param but the output videos quality and file size are always the same. int processSuccess = await _flutterFFmpeg.execute(["-i", "file1.mp4", "-crf", "23", "fileoutput.mp4"]); I had to change the package to video as the execution would fail on the default import as it could not find the (...) -- https://github.com/tanersener/flutter-ffmpeg
• 10:43
  Stop FFMPEG changing extracted frame resolution - S_Wheel Newest 'ffmpeg' Questions - Stack Overflow
  I'm using a bash script to extract frames from a bunch of videos in a folder. #!/bin/bash if [ "$1" == '' ] || [ "$2" == '' ] || [ "$3" == '' ]; then echo "Usage: $0 "; exit; fi for file in "$1"/*."$3"; do destination="$2$file:$#1:$#file-$#1-$#3-1"; mkdir -p "$destination"; ffmpeg -i "$file" -vsync 0 -frame_pts true -r 1000 "$destination/frame_%d.png"; done Using the ffmpeg command: ffmpeg -i "$file" -vsync 0 -frame_pts true -r 1000 -s "$destination/frame_%d.png"; My problem is the (...)
• 06:59
  Receive HLS stream and rebroadcast - user9066046 Newest 'ffmpeg' Questions - Stack Overflow
  I have commercial streaming server that streams via HLS in Europe. http://europe.server/stream1/index.m3u8 Now my clients in USA having some network issues due to distance. So I have deployed new server in USA. I'd like it to receive HLS streams from European server and respond to US based customers. So users can access like http://usa.server/stream1/index.m3u8 It will be H265/HEVC only so RTMP is not possible. Every tutorial I see on internet is based on RTMP. I have used following config from (...) -- https://docs.peer5.com/guides/setting-up-hls-live-streaming-server-using-nginx/
• 06:03
  ffmpeg - libx264 + slideshow produces smeared output - epilitimus Newest 'ffmpeg' Questions - Stack Overflow
  I recently upgraded to ffmpeg version 4.3.1 with libx264. When I use it to generate a single image slideshow ffmpeg -y -loop 1 -i shapes.jpg -t 0:0:5 -vcodec libx264 output.mp4 I get a smeared image that looks like a technicolor waterfall (I know the -vcodec is redundant here).If I force use of the mpeg4 codec ffmpeg -y -loop 1 -i shapes.jpg -t 0:0:5 -vcodec mpeg4 output.mp4 everything works fine. I have tried several different input images but for example: https://cdn4.vectorstock.com/i/1000x1000/84/48/simple-geometric-shape-vector-13698448.jpg  (...) -- https://cdn4.vectorstock.com/i/1000x1000/84/48/simple-geometric-shape-vector-13698448.jpg, technicolor waterfall
• 05:03
  Mac terminal command to list files and sort by date to use in ffmpeg - Jeff Newest 'ffmpeg' Questions - Stack Overflow
  I am using a gopro to film a bunch of videos. I want to then take those videos directly from the SD card folder and concatenate them into a single video (bypass an editor) by using FFMPEG. I'm currently able to stitch together "chaptered" videos with the following example command on my Mac (10.13): ffmpeg -f concat -safe 0 -i The reason for this is that the ffmpeg command requires a text file that looks like this: file '/folder/GH016992.MP4' file '/folder/GH036990.MP4' ... The real command is this, which (...) -- https://opensource.com/article/19/6/how-write-loop-bash
• 04:04
  Cutting the videos based on start and end time using ffmpeg - Kalai 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. can anyone help me how resolve this? Edit 1: I have tried to cut by using the following command which is suggested by mark4o ffmpeg -i movie.mp4 -ss 00:00:03 -t (...)
• 04:39
  FFMPEG doesn't work with mp4 and stdout - Max Grigoriev Newest 'ffmpeg' Questions - Stack Overflow
  I need to add text to mp4 video. If I write result to file then everything is OK, but I want to read data from ffmpeg stream. I run command: ffmpeg -i sample.mp4 -filter_complex "drawtext='text=\\"Sample Text\\"':x=(w-text_w)/2:y=(h-text_h-line_h)/2:fontsize=40:fontcolor=white:fontfile=TimesNewRoman.ttf:enable='between(t,1,5)'" -f mp4 - I received the following error: ffmpeg version 2.2.2-tessus Copyright (c) 2000-2014 the FFmpeg developers built on May 7 2014 23:17:42 with clang version 3.3 (tags/RELEASE_33/final)  (...)
• 00:20
  Multiple bitrates HLS with ffmpeg-python - monomonedula Newest 'ffmpeg' Questions - Stack Overflow
  I am currently using ffmpeg-python library to convert a .mp4 video into HLS format with output looking like this: ffmpeg.output( mp4_input, m3u8_name, format='hls', start_number=0, hls_time=5, hls_list_size=0, ), How do I make ffmpeg-python output HLS with in multiple bitrates and create a master playlist for them?

21 September

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

• 16:52
  How to merge several videos in a grid, in one video? [closed] - Kayra Uckilinc Newest 'ffmpeg' Questions - Stack Overflow
  I have 36 video files with same dimensions and want to concatenate them into a one single video with 6x6 grid. Ideally is non-square number of videos are given for example 12, a 4x3 grid as the most square it can be would be great. I tried with matplotlib's animation library but failed to concatenate videos in both directions first as row then as columns. Any help is appriciated!
• 23:53
  FFMPEG : add multiple drawtexts, vertically stacked, to a video - Ali Doggaz Newest 'ffmpeg' Questions - Stack Overflow
  I wish to add several texts to a video. The texts should be vertically aligned, in the top center of the video. here is what I tried for now : n = len(titles) #Titles a list containing all the texts we will add to the video p = 0 for text in titles: os.system( fr'ffmpeg -i outputp.mp4 -filter:v drawtext="fontfile=Lato- Black.ttf:fontcolor=black:fontsize=60:text=' + f"'text':" + f'y=200-(n-p) * 62:x=(w- text_w)/2"-y outputp + 1.mp4') p = p + 1 As you can see, all the texts should have (...)
• 22:27
  FFMPEG with moviepy - Shenhav Mor Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on something that concatenate videos and adds some titles on through moviepy. As I saw on the web and on my on pc moviepy works on the CPU and takes a lot of time to save(render) a movie. Is there a way to improve the speed by running the writing of moviepy on GPU? Like using FFmpeg or something like this? I didn't find an answer to that on the web, so I hope that some of you can help me. I tried using thread=4 and thread=16 but they are still very very slow and didn't change much. My CPU is very strong (i7 10700k), but still, rendering on (...)
• 21:54
  AttributeError: module 'librosa' has no attribute 'output' - Aditya Kumar Newest 'ffmpeg' Questions - Stack Overflow
  I am using librosa 0.6 in anaconda and i have also installed ffmpeg but i am still getting this error the code is a = np.exp(spectrum) - 1 p = 2 * np.pi * np.random.random_sample(spectrum.shape) - np.pi for i in range(50): S = a * np.exp(1j * p) x = librosa.istft(S) p = np.angle(librosa.stft(x, N_FFT)) librosa.output.write_wav(outfile, x, sr)
• 21:34
  The good command for Broadway.js (H264) - Gamepigeek Newest 'ffmpeg' Questions - Stack Overflow
  im use https://github.com/mbebenita/Broadway i stream h264 with ffmpeg with this command (broadway require baseline) /usr/bin/v4l2-ctl -v width=640,height=480,pixelformat=4 -p 30 -c h264_profile=0,repeat_sequence_header=1,rotate=0,video_bitrate=300000,brightness=50,contrast=-5 | ffmpeg -i /dev/video0 -c:v h264 -profile:v baseline -f rawvideo http://mynodejserver:8081/ the commands is working but i have artefact in my video :( (the bitrate os ok) look : artefacts how to fix this please (the good command) :)  (...) -- https://github.com/mbebenita/Broadway, artefacts
• 21:00
  FFMPEG with -vf yadif on progressive file produces incorrect 'Original Frame Rate' metadata double - hedgehog90 Newest 'ffmpeg' Questions - Stack Overflow
  I've got an ffmpeg command that I often use, I incorporate the yadif argument for content that may or may not be interlaced: ffmpeg -i input.mkv -c copy -c:v hevc_nvenc -c:a:0 aac -b:a 192k -vf yadif=mode=1:deint=1 output.mkv This means if input.mkv is an interlaced video, I get double the frame rate and the footage is deinterlaced, and if it's progressive it remains so and the frame rate doesn't change, exactly as I want it. However, I've just noticed in Mediainfo that progressive videos processed by this command, it adds this mysterious "Original Frame (...) --
• 20:08
  show subtitles list, get id and name of each subtitles track - user25 Newest 'ffmpeg' Questions - Stack Overflow
  I would like to get some list of all available subtitles tracks like: #1 - id, name #2 - id, name #3 - id, name ... So list would tell how much subtitles tracks I have, show id and name of each track Is there any FFmpeg option to show such list?
• 19:33
  Can you crop a photo to fit a circle using ffmpeg? - L04DB4L4NC3R Newest 'ffmpeg' Questions - Stack Overflow
  I know that ffmpeg is very advanced and can be used to crop both photos and videos in order to rescale them. Bit mostly everything I've come across online uses the X and Y coordinates to crop a photo in ffmpeg. How can we use this to crop a photo in the form of a circle rather than a rectangle?
• 17:13
  Use ffmpeg to create a music video with the cover on a black background - user6329530 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use this tutorial to create youtube videos with ffmpeg https://trac.ffmpeg.org/wiki/Encode/YouTube When using this example, I get a video that works however the background is white ffmpeg -loop 1 -framerate 2 -i albumcover.png -i audio.wav -c:v libx264 -preset medium -tune stillimage -crf 18 -c:a copy -shortest -pix_fmt yuv420p output.mkv I tried to add a color filter but that makes the whole video output black: ffmpeg -loop 1 -framerate 2 -i albumcover.png -filter_complex "color=s=1920x1080:c=black" -i audio.wav -c:v libx264 -preset medium -tune (...) -- https://trac.ffmpeg.org/wiki/Encode/YouTube
• 17:11
  fade In and out effect on a text using ffmpeg in nodejs - sankar barman Newest 'ffmpeg' Questions - Stack Overflow
  There are many examples for command line interface, but what i need is to achieve by having an object property with filter name and options. No solution have been found for this. Here is the code sample. Everything is working fine, but don't know the syntax for fade In and fade out. Please do help in this. Thanks in advance. ffmpeg("tmp/" + file.name).videoFilters( filter: 'drawtext', options: fontfile: 'Lucida Grande.ttf', x: 50, y:20, text: 'some title', fontsize: '56', fontcolor: (...)
• 17:06
  ffmpeg encoded hls makes audio and video progressively out of sync - eschie Newest 'ffmpeg' Questions - Stack Overflow
  When trying to encoding a source .mp4 to multiple bitrates and sizes for adaptive HLSv3 playback the resulting audio and video become progressively out of sync. When scrubbing to a later point it seems to reset, and stay in sync. I'm on the latest ffmpeg 4.2.1 via homebrew-ffmpeg, with the libfdk-aac codec. Note, this was also occurring with ffmpeg 4.1. ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with Apple LLVM version 9.0.0 (clang-900.0.39.2) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1-with-options_1 (...)
• 13:52
  How to use ffmpeg to transcode many live streamed videos? [closed] - user14258924 Newest 'ffmpeg' Questions - Stack Overflow
  PREMISE As a pet project, I am writing a live video streaming service, in Go, that can consume video streams from OBS via SRT(TS -> h264/aac) and RTMP(FLV -> h264/aac) protocols and am planning to support streaming video from web browser as well, captured from a web camera via JS. This ingress server will receive many video streams in various containers and codecs and I need to normalize them into single container and codec and then create multiple versions for various bitrates(ie. 240p, 360p, 480p, 720p, 1080p...) to pass along where needed in the application. Each stream is split (...)
• 16:16
  Filter useless white frames at the beginning and duplicated frames at the end of captured video - gumkins Newest 'ffmpeg' Questions - Stack Overflow
  I'm capturing HTML animation with use of Puppeteer and MediaRecorder API. Before starting the capturing I'm waiting for networkidle event (I tried networkidle0-2 but result is identical) await page.goto(url, waitUntil: 'networkidle0' ) For some reason, the animation starts to play 2-3 seconds after the capturing starts, and thus, white frames are captures. Similar, at the end of the video there are identical frames because capturing duration is a bit longer than animation plays. Thus I want to detect and cut off those repeating white frames (...)
• 15:39
  Concatenate two files while keeping the duration the same as the two files separately - John Pollard Newest 'ffmpeg' Questions - Stack Overflow
  When I calculate the duration of each individual file I want to concatenate I get 10.24 for both. So I figured when I concatenate the two files I would get a duration of file A plus file B or 10.24 + 10.24 giving me a total duration of 20.48 for the combined file. But no matter what command I use to concentrate I cannot get the same duration. Am I doing something wrong? ffprobe -i "audioA.mp3" -show_entries format=duration -v quiet -of csv="p=0" 10.24 ffprobe -i "audioB.mp3" -show_entries format=duration -v quiet -of csv="p=0" 10.24 Which makes a (...)
• 15:28
  what's mean of program and layer in latm? - night Newest 'ffmpeg' Questions - Stack Overflow
  I am a beginner for ffmpeg and mpeg. Recently,I is reading documents of mpeg-4 part3-aac,But I can't understand two terms that they was program and layer in latm format that is in multiplex layer .how does I understand them.Is program in latm the same with program in ts format. Thx! numProgram A data element indicating how many programs are multiplexed (numProgram+1). The minimum value is 0 indicating 1 program. numLayer A data element indicating how many scalable layers are multiplexed (numLayer+1). The minimum value is 0 indicating 1 (...)
• 14:37
  Using a HLS m3u8 or DASH mpd as ffmpeg input: seeking performance - coder_uk Newest 'ffmpeg' Questions - Stack Overflow
  I wonder if any FFMPEG wizards can help with this: I've seen examples (like FFmpeg code not working on http url for thumbnail extraction) of using a http URL as the input but so far only with an .mp4. If I were to instead use an ABR .m3u8/.mpd as the input (which, though a text file, does represent a video) ... is FFMPEG smart enough to work with it? To parse it? So ... if I gave it a 5 hour HLS VOD m3u8 as input (-i http...), and asked it for a frame at 4 hours in (-ss), would it only download that one 10s segment at the 4-hours point? And so only need to download a small (...)
• 14:31
  How to change colour in WebM video using FFMPEG - gowtham kosaraju Newest 'ffmpeg' Questions - Stack Overflow
  I Have a web video file in this want to change the colour of the video pixels which are in black to blue color. I tried with the below command. Input video: https://share.getcloudapp.com/WnuJoLGX ffmpeg -vcodec libvpx-vp9 -i input.webm -filter_complex "[0:v]format=rgba,lutrgb=r='if(eq(val,0),240,val)':g='if(eq(val,0),111,val)':b='if(eq(val,0),69,val)':a='val'[out]" -vcodec libvpx-vp9 -map "[out]" output.webm Output video: https://share.getcloudapp.com/geuzn6be But output video looks stuttering at the edges. Can anyone (...) -- https://share.getcloudapp.com/WnuJoLGX, https://share.getcloudapp.com/geuzn6be
• 14:14
  ffmpeg error on DVCPRO HD encoding is not supported - Selene Newest 'ffmpeg' Questions - Stack Overflow
  Please help, I'm trying to encode a video stream, and output the video using the same format as my input: ffmpeg -i input.mov -c:v dvvideo -pix_fmt yuv422p -b:v 115084915 -maxrate 115084915 -minrate 115084915 -r 29.97 -top 1 -color_primaries bt709 -color_trc bt709 -colorspace bt709 -vtag dvh6 -c:a copy -c:s copy -y output.mov this is the output: DVCPRO HD encoding is not supported.\\n[dvvideo ⓐ 0x7ffaee815c00] ff_frame_thread_encoder_init failed\\nError initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters (...)
• 10:47
  Building the ffmpeg Libs as static (.lib) files on Windows - pma07pg Newest 'ffmpeg' Questions - Stack Overflow
  I've got the build environment set up: https://www.linkedin.com/pulse/building-ffmpeg-windows-without-fuss-moshe-david From this I can successfully build ffmpeg.exe but I want to build libavcodec.lib etc statically for use with my project. I assume it's just a simple command line option for ./configure that I'm missng, but --enable-static builds the exe and --enable-shared builds the dlls... Any help on this would be much appreciated!  (...) -- https://www.linkedin.com/pulse/building-ffmpeg-windows-without-fuss-moshe-david
• 10:08
  Edit m4s files video - Yogevnn Newest 'ffmpeg' Questions - Stack Overflow
  In my application i'm saving my video files in M4S format. I want to make an editing option for these files, my requirements are adding text and images at specific point of a video. My first thought was to generate photo for text inserting (using jimp) which is very easy. Now my goal is to make a single photo as a m4s file. preferably i would like to choose my own name for that file. How can i achieve that? The flow should be: image.jpg -> 5.m4s (...) -- jimp
• 10:04
  ffmpeg concat discards audio stream - julian bechtold Newest 'ffmpeg' Questions - Stack Overflow
  What I want to achieve I have two input videos which I do want to concatenate using ffmpeg. Issue The input videos contain two stereo audio channels: after concatenation, the second audio stream is lost: steps to reproduce The Command I used is ffmpeg -f concat -i list.txt -c:a copy -c:v copy demuxed.mp4 Additional Information The Console Output shows the second audio stream in input properly: The Output settings also show that there is only one audio output stream. But I want to have the exact same settings in to out, (...) -- , , ,
• 03:33
  How to Add Watermark like tic tok using ffmpeg in android studio - arjunsinh Newest 'ffmpeg' Questions - Stack Overflow
  I am trying To add Watermark Like Tic Tok using FFMPEG but it's Not working GeneralUtils.checkForPermissionsMAndAbove(MainActivity.this, true); LoadJNI vk = new LoadJNI(); try //String complexCommand = "ffmpeg -y -i /storage/emulated/0/in.mp4 -strict experimental -vf transpose=1 -s 160x120 -r 30 -aspect 4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k /storage/emulated/0/out.mp4"; /*String complexCommand = "ffmpeg -i /storage/emulated/0/in.mp4 -framerate 30000/1001 -loop 1 -i /storage/emulated/0/abcd.jpg -filter_complex\\n" + " \\"[1:v] (...)
• 03:08
  I am using ffmpeg java library to convert captured screenshots to video. Video output is blurry [closed] - dark prince Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg java library to convert captured screenshots to video. Video which is generated as output is blurry. I am using bit rate as 9000, frames per sec as 25 and video size as that of desktop screen size. Any suggestions on how to solve this issue. P.S. I cannot use ffmpeg.exe and command line due to certain restrictions and hence I am opting for ffmpeg java library. Any suggestions on the issue or suggestions on any better approach will be helpful. Thanks in advance. Complete code in the below link:  (...) -- https://github.com/csanuragjain/recorder/tree/master/ScreenRecorder
• 02:25
  ffmpeg - top coded first (swapped) vs progressive -top 1 does not stick - Selene Newest 'ffmpeg' Questions - Stack Overflow
  please help: I'm encoding a video, and because of my specific use-case, I have to encode it twice, in sequence, so that the output from the first run of ffmpeg goes into second encoding of ffmpeg as an input. I use "-top 1" option to force "top coded first (swapped)". When encoding the first iteration of encoding, everything works great (output from ffprobe below): Duration: 00:00:22.16, start: 0.000000, bitrate: 61390 kb/s Stream #0:0(eng): Video: mpeg2video (4:2:2) (xd5c / 0x63356478), yuv422p(tv, bt709, top coded first (swapped)), 1920x1080 ... etc-etc.  (...)
• 01:35
  How to Combine 2 FFmpeg Commands - John Doe Newest 'ffmpeg' Questions - Stack Overflow
  Written for BATCH file. I have a command which creates a video from a concat list of clips, adds background music and then finishes with an outro mp3 and some silence. The output video is the length of the combined audio files. I then have a second command which adds a simple fade-in to the outputted video. I would like to do this on the first pass rather than re-encoding the entire video, however when I try to do this the video no longer stops rendering after the audio, but instead continues rendering for the length of the entire concat list. Is there a way to do this whilst (...)

20 September

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

• 23:11
  fluent-ffmpeg unable to achieve consistent audio bitrate - Martin Newest 'ffmpeg' Questions - Stack Overflow
  I am working on an electron app that runs ffmpeg commands to combine an audio file + image file into a video file. I'm using an fluent-ffmpeg command I wrote, which works, but the outputted video fiels always have a lower audio bit rate, even though I specify 320kbps in my command. I've been running multiple tests with mp3/flac/wav files that I logged below; using my fluent-ffmpeg command as follows: ffmpeg() .input(imgPath) .loop() .addInputOption('-framerate 2') .input(audioPath) .videoCodec('libx264')  (...) -- , ,
• 23:09
  FFmpeg copy mkv covers without re-encoding (`-c:t copy` does not work) - CasualDemon Newest 'ffmpeg' Questions - Stack Overflow
  Using the Matrsoka test file with cover art https://sourceforge.net/projects/matroska/files/test_files/cover_art.mkv/download I am trying to copy the covers using the -c copy methodology, but I need to specify it only for the covers themselves, however -c:t copy does not seem to work. Video file streams: Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp (default) Stream #0:1: Video: h264 (High), yuv420p(progressive), 1272x720 [SAR 1:1 DAR 53:30], 24 fps, 24 tbr, 1k tbn, 48 tbc (default) Stream #0:2: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), (...) -- https://sourceforge.net/projects/matroska/files/test_files/cover_art.mkv/download
• 20:21
  Using Timeline Support with "reverse" in ffmpeg - Ffmpeg Newest 'ffmpeg' Questions - Stack Overflow
  I want to reverse a small space in my video that doesn't seem like Timeline editing doesn't support that I tried to use the following command ffmpeg -y -i "input. *" -filter_complex "reverse = enable = 'gte (t, 3)': preset = cross_process" -vcodec libx264 -pix_fmt yuv420p -r 30 -g 60 -b: v 1200k -acodec libmp3lame -b: a 128k -ar 44100 -preset superfast "output .mp4" Look forward to the help . thank you
• 20:07
  Remuxing MKV to MP4 fails when using -map 0 but works fine when Remuxing MP4 to MKV - AppetiteForDestruction Newest 'ffmpeg' Questions - Stack Overflow
  I have an MKV file that contains 5 streams... 0: video 1: audio 2: audio 3: text 4: menu I was able to remux the MKV into an MP4 using this command... > ffmpeg.exe -i input.mp4 -map 0 -c copy -c:s mov_text output.mkv The resulting output MP4 contains all the streams from the original MKV. But if I try to remux the output MP4 into an MKV using the same command, but with a different codec for the subtitles (srt) and different file extension (mkv), I get an error. However, if I omit "-map 0" from the command, it works but only ONE of the audio (...)
• 18:42
  FFMPEG + V4L2 OPTIONS - Pierre Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for a way to integrate the parameters of v4l2-ctl on ffmpeg the problem what ffmpeg overwrite v4l2-ctl and I need specific parameter has v4l2-ctl :( my v4l2-ctl commands is : v4l2-ctl -v width=640,height=480,pixelformat=4 -p 30 -c h264_profile=0,repeat_sequence_header=1 I want to use these parameters to then stream directly with FFMPEG how can I do ? Thanks !
• 16:59
  How to use GPU to accelerate the processing speed of ffmpeg filter? - Zedd W Newest 'ffmpeg' Questions - Stack Overflow
  According to NVIDIA's developer website, you can use GPU to speed up the rendering of the ffmpeg filter. Create high-performance end-to-end hardware-accelerated video processing, 1:N encoding and 1:N transcoding pipeline using built-in > filters in FFmpeg Ability to add your own custom high-performance CUDA filters using the shared CUDA context implementation in FFmpeg The problem I am having now is how to use the GPU to speed up multiple ffmpeg filter processing? For example: ffmpeg -loop 1 -i dog.jpg -filter_complex (...)
• 16:59
  ffmpeg subtitles alignment and position - friendlygiraffe Newest 'ffmpeg' Questions - Stack Overflow
  I am adding subtitles to a video using: ffmpeg -i "imput.mp4" -lavfi "subtitles=subtitles.srt:force_style='OutlineColour=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18'" -crf 1 -c:a copy "output.mp4" Which results in: I am repositioning this using Alignment : ffmpeg -i "imput.mp4" -lavfi "subtitles=subtitles.srt:force_style='Alignment=9,OutlineColour=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18'" -crf 1 -c:a copy "output.mp4" But according to the Line-Alignment (...) -- Line-Alignment ASS Tags
• 16:45
  ffmpeg cut video and put audio in the middle of it - deathangel908 Newest 'ffmpeg' Questions - Stack Overflow
  I have a video file of 60s duration. an audio file of 35s duration I want to cut a video from 5th second to 50th and put an audio file in the middle that starts playing at 5th second of the output. So first 5 and last 5 seconds output video is silent. I also don't want to reencode the video so compilation would be fast and quality would stay exactly the same. I'm trying the following command ffmpeg -y -i DJI_0325.mp4 -ss 00:00:40.5 -i song.mp3 -c:v copy -c:a copy out.mp4 but the audio starts playing in the middle. I also tried (...) --
• 15:25
  How can i generate rtp pcap file with silk codec? - mohammad noroz Newest 'ffmpeg' Questions - Stack Overflow
  for a university project my teacher said me generate rtp pcap file with silk codec. I explorer ffmpeg and i dont see any thing useful for me for generate rtp pcap file with encode silk codec.
• 14:59
  I got that error when i try to play music with my bot on discord - TheKillerBoss 27 Newest 'ffmpeg' Questions - Stack Overflow
  (node:10076) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'id' of undefined at play (C:\\Users\\USER\\Desktop\\Giochi e Programmi\\Foto video ecc\\Proggetti\\Discord-bot\\Akagi-chan\\Akagi_chan.js:49:51) at C:\\Users\\USER\\Desktop\\Giochi e Programmi\\Foto video ecc\\Proggetti\\Discord-bot\\Akagi-chan\\Akagi_chan.js:89:17 at processTicksAndRejections (internal/process/task_queues.js:97:5) (node:10076) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or (...) -- https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode
• 04:34
  FFMPEG Combine a list of jpg with mo3 audios to sepatated videos on batch [closed] - Francisco Barrod Newest 'ffmpeg' Questions - Stack Overflow
  i have a big list of jpg and mp3 files. each of them have identical names but they not enumerated. example cat.jpg and cat.mp3 pig.jpg and pig.jpg i want to make videos cat.mp4 pig.mp4 i have a code to do this manually but i want to make it on batch. heres my code ffmpeg -loop 1 -i cat.jpg -i cat.mp3 -threads 8 -shortest -c:v libx264 -c:a copy cat.mp4 its simple but works for my need. need help to make it on batch- thanks in (...)
• 14:16
  Ffmpeg seeking with m3u8 ineffective - Lemon Sky Newest 'ffmpeg' Questions - Stack Overflow
  Following the answer at Ffmpeg inaccurate cutting with ts and m3u8 files despite resamping audio filter, I am cutting some portion out of an m3u8 file. My m3u8 has a segment every 4 seconds, so I seek to a location around 10 seconds before the cutting point with -ss before -i. Then adjust position with -ss after -i. Here are two examples where the starting cut points are off by 1s: ffmpeg -y -ss 0:03:22 -start_at_zero -i http://tyberis.com/CFTE-AM_2020-08-28_23-00-00.m3u8 -ss 1 -t 0:00:10 322.wav ffmpeg -y -ss 0:03:23 -start_at_zero -i (...)
• 11:47
  How to use FFMPEG on Python/Windows10 with Pipe for Screen recording? - Trmotta Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to record the screen with ffmpeg as it seems to be the only player out there who can record a region of the screen along with the mouse cursor. The following code was adapted from i want to display mouse pointer in my recording but it doesn't work on a Windows 10 (x64) setup (using Python 3.6). #!/usr/bin/env python3 # ffmpeg -y -pix_fmt bgr0 -f avfoundation -r 20 -t 10 -i 1 -vf scale=w=3840:h=2160 -f rawvideo /dev/null import sys import cv2 import time import subprocess import numpy as np w,h = 100, 100 def (...) -- https://github.com/abhiTronix/vidgear, https://github.com/kkroening/ffmpeg-python
• 10:36
  ffmpeg: error while loading shared libraries: libopenh264.so.5 - ESZ Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg and getting this error ffmpeg: error while loading shared libraries: libopenh264.so.5: cannot open shared object file: No such file or directory I have already checked if the library exists and it does. I added it to /etc/ld.so.conf as mentioned in this previous question but it doesn't work.
• 05:56
  How can I segment a ts file on scene change detection using FFmpeg? - Mike Davis Newest 'ffmpeg' Questions - Stack Overflow
  I am either not asking the question in a way Google can understand, or no one has asked this, as every issue I can find is in regards to outputting images of each scene. I want to output video segments… I have an input video that is basically a slide show, except the slides coincide with songs, so they are not at regular intervals. I would like to segment and create a sequence of ts files that are split based on a scene change threshold, and have a separate ts file for each (...)
• 03:22
  ffmpeg options for encoding a video mpeg2video but with .mov extension - Selene Newest 'ffmpeg' Questions - Stack Overflow
  I just finished a project, and need to produce an output in the specific format, should be exactly the same as the format of the video I received. The best way for me to identify the source format was to use ffprobe. Here was the output of that: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mov': Metadata: creation_time : 2020-02-27T04:15:23.000000Z Duration: 00:00:22.13, start: 0.000000, bitrate: 111320 kb/s Stream #0:0(eng): Video: mpeg2video (4:2:2) (xd5c / 0x63356478), yuv422p(tv, bt709, top coded first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], (...)
• 00:29
  Make Discord bot play sound from a direct url - merctraider Newest 'ffmpeg' Questions - Stack Overflow
  I want to make a discordpy bot that plays audio files from a specific link on the internet, rather than from a local directory. It seems that all the other examples use ytdl, but those are for video streaming sites. How should I go about doing this? if(voice_channel != None): vc = await voice_channel.connect() vc.play(discord.FFmpegPCMAudio('http://website/001.mp3'), after=lambda e: print('done', e)) else: await ctx.send("Join a voice channel (...)

19 September

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

• 23:59
  Wrap audio data of the pcm_alaw type into an MKA audio file using the ffmpeg API - bbdd Newest 'ffmpeg' Questions - Stack Overflow
  Imagine that in my project, I receive RTP packets with the payload type-8, for later saving this load as the Nth part of the audio track. I extract this load from the RTP packet and save it to a temporary buffer: ... while ((rtp = receiveRtpPackets()).withoutErrors()) payloadData.push(rtp.getPayloadData()); audioGenerator.setPayloadData(payloadData); audioGenerator.recordToFile(); ... After filling a temporary buffer of a certain size with this payload, I process this buffer, namely, extract the entire payload and encode it using (...) -- type-8, ffmpeg, Matroska, pcm_alaw, vlc, av_guess_codec(), All, this
• 23:13
  Using ffmpeg to get video info - why do I need to specify an output file? - Redtopia Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to get info about a video file and I don't want to save the info into a file. ffmpeg is returning all the video info, but it's returning as an error because I'm not specifying an output file. The command I'm using is: ffmpeg -i C:\\Test\\3FA8D0E6-BD61-D160-98BB41304D63FAE3.mp4 The error I get is "At least one output file must be specified" I'm calling this in ColdFusion using , and the output is being stored in a local variable, which is why I don't want to specify a file... I just don't need to (...)
• 21:13
  can we apply fecolor matrix in FFmpeg? - Dubey sai vithal teja Newest 'ffmpeg' Questions - Stack Overflow
  Im using FFmpeg from 2 days. I learned how to add watermarks and mix audio and video . Is there a way to use recolor matrix to make video filters. Thanks
• 20:43
  How to compress video size without changing much quality and without changing framerate (Ffmpeg)? - WebDiva Newest 'ffmpeg' Questions - Stack Overflow
  I am using this command to compress my videos: ffmpeg -y -i video.mp4 -vcodec libx264 -crf 24 -preset ultrafast compressed.mp4 Although it works okay, there is a slight increase in duration because I am changing the framerate of videos, and we need the video to be the exact duration. Is there a way to compress videos without changing the framerate? any help would be appreciated. Thank you. Log: ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10.2.1 (GCC) 20200805 configuration: --enable-gpl (...)
• 20:36
  Speed up reading video frames from camera with Opencv - Tuyen Vo Quang Newest 'ffmpeg' Questions - Stack Overflow
  Currently, i have my application implemented in Python to read camera frames via USB. I use Opencv, but for camera with 60fps and 1920x1080 resolution, i could not capture the this speed. I try something: cv2.VideoCapture(0, cv2.CAP_FFMPEG), but i could not the frames (capture read returns False). Could you please suggest any solutions or ways to improve the overall speed or even processing them in GPU. # Opencv 3.4.9 & Python 3.6.9 import cv2 capture = cv2.VideoCapture(0, cv2.CAP_FFMPEG) while True: ret, frame = capture.read() if ret:  (...)
• 19:40
  how to cut 2 seconds of video after each 10 seconds with ffmpeg? - ben_copper Newest 'ffmpeg' Questions - Stack Overflow
  i have a long video which require to cut 2 seconds of video after each 10 seconds , how can i do that with FFMPEG ? I have tried video filter trim but it didn't cut video automatically after 10 seconds. Using -ss and -to option will require to create video parts and then concat them and it will take lot of time. Is there any Method in FFMPEG to do that. Thanks
• 04:50
  How to concat 2 FLAC files using ffmpeg version 3.4.8 [duplicate] - Armstrong Soo Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to concatenate 2 flac files in Ubuntu via CLI. The first flac file is "mynameis.flac", which contains the audio of "My name is" and lasts 2.66 sec. The second flac file is "stt_VNFKEY.fac" that contains audio of a name that last 1.9 sec. After a successful concatenation, I expect the output "test.flac" should contain an audio of about 3.56 sec (2.66+1.9). However, the following command only yield the "mynameis" in the output. What do I need to do to concat both flacs? ffmpeg -i mynameis.flac -i stt_VNFKEY.flac test.flac ffmpeg version 3.4.8-0ubuntu0.2 (...)
• 18:07
  Xcode 12: how to link against object files built for free standing - Jean-Michaël Celerier Newest 'ffmpeg' Questions - Stack Overflow
  The issue is about linking x86_64 macOS executables statically against libavcodec, libavdevice, etc, which have some object files built against freestanding as they use YASM which isn't able to embed the macOS "tag" in the binary (see Building for macOS, but linking in object file built for free standing for detailed information on that issue). Everything works fine under Xcode 11.6 - the following messages are here, but they are warnings. With the Xcode 12 update they become an error. How to make them warnings again ? I could not find anything relevant in the ld man (...)
• 17:55
  How is audio data stored in raw pcm format？ - Tian Ye Newest 'ffmpeg' Questions - Stack Overflow
  I am writing an app to manipulate audio where i need to convert a file (wav, MP3, etc) to raw data (samples are presented as float) at the first place. I use ffmpeg in cmd: ffmpeg -i test.wav -f s16le -acodec pcm_s16le output.dat How are samples represented in the output.dat file? I know one sample needs two bytes under S16, and dual channel means it is stored as L1 R1 L2 R2 ... But does this file come with a frame presentation or all the byte in the dat file are sample values? The converted files' size of test.wav via two methods is not identical. (...)
• 17:46
  How to merge subtitle files in one sami file - rush Newest 'ffmpeg' Questions - Stack Overflow
  I want to make a multilanguage subtitle file from multi srt file what I mean is if I have en.srt ar.srt fr.srt I want to make subtitle.smi sami files can contain more than on subtitle and can choose any of them from video player I search for tool in command line or python script/library to do that
• 15:15
  ffmpeg: transcode over socket - user14258924 Newest 'ffmpeg' Questions - Stack Overflow
  I am consuming multiple streams of h264 video and aac audio data in my own RTMP server and I want to transcode these streams into different codecs so I want to send these tracks, in chunks, into ffmpeg and get the transcoded result back. But due to performance requirements I want to use some kind of streaming where I can just open up a socket to get files in/out instead of dumping the data into individual files and then reading transcoded files back. Is it possible with (...)
• 13:54
  Convert ogg audio to wav in python without ffmpeg - Talha Anwar Newest 'ffmpeg' Questions - Stack Overflow
  I am getting oga file from javascript blob and I want to convert it to PCM compatible wav file in python. The approach I am using is as follow AudioSegment.converter = r"C:/ffmpeg/bin/ffmpeg.exe" AudioSegment.ffprobe = r"C:/ffmpeg/bin/ffprobe.exe" sound = AudioSegment.from_file("file.oga") sound.export("file.wav", format="wav") For this I have to download ffmpeg locally. Is there any way to convert oga file to wave directly. This is how i am saving file f = open('./file.oga', (...)
• 13:07
  stream FFMPEG clients on webserver [closed] - Pierre Newest 'ffmpeg' Questions - Stack Overflow
  i tried to make a picture that sums up what i want to do. I hope you understand :) protocol operation please guide me the best of the best would be not to open ports ! clients sending their FFMPEG stream (h264) --> server who interprets them --> front-end which displays all the video streams (php nodejs..) Thanks x) -- protocol operation
• 11:36
  How to batch process a directory of mp4 files to remove their metadata? - sd100 Newest 'ffmpeg' Questions - Stack Overflow
  I convert one mp4 file using ffmpeg to remove all metadata from the mp4 file with the following command: ffmpeg -i test.mp4 -map_metadata -1 -c:v copy -c:a copy out.mp4 This works fine but I want a bash script that will automatically remove all metadata of a directory containing mp4 files, with minimum interaction. How can I do that?
• 11:12
  Getting Error with node-media-serve and ffmpeg in heroku - Anurag Gautam Newest 'ffmpeg' Questions - Stack Overflow
  I have created a MERN app with video streaming by using node-media-serve module, with following configuration trans: ffmpeg: '/vendor/ffmpeg', tasks: [] , ..... In local I have installed ffmpeg in trans.ffmpeg. and its working fine, But how we need to install ffmpeg in heroku . I have tried by adding heroku buildpacks heroku buildpacks:add https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git but its showing me error. May be some issue with config only. Heroku error : 2020-09-16T11:23:54.292896+00:00 (...)
• 10:13
  Increase volume on multiple files - Reckless Velociraptor Newest 'ffmpeg' Questions - Stack Overflow
  Let say I have a couple of hundreds mp3 files. How do I increase volume in all of them with ffmpeg? This is for single file: ffmpeg -i input.mp3 -filter:a "volume=1.5" output.mp3 And what about multiple files with one command?
• 04:12
  How can i stream through ffmpeg a canvas generated in Node.js to youtube/any other rtmp server? - DDC Newest 'ffmpeg' Questions - Stack Overflow
  i wanted to generate some images in Node.JS, compile them to a video and stream them to youtube. To generate the images i'm using the node-canvas module. This sounds simple enough, but i wanted to generate the images continuously, and stream the result in realtime. I'm very new to this whole thing, and what i was thinking about doing, after reading a bunch of resources on the internet was: Open ffmpeg with spawn('ffmpeg', ...args), setting the output to the destination rtmp server Generate the image in the canvas Convert the content of the canvas to a (...)
• 03:50
  Process video frame by frame with NodeJS - Michael Studebaker Newest 'ffmpeg' Questions - Stack Overflow
  I want to be able to process a video frame by frame with NodeJS. I've looked at fluent-ffmpeg, but I don't think it supports processing the video frame by frame.

18 September

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

• 22:05
  ffmpeg example progs fail on Ubuntu 18.04.5 but work on macOS 10.14.6 - GR99 Newest 'ffmpeg' Questions - Stack Overflow
  Am trying to build ffmpeg 4.3 example progs downloaded from git source on both Ubuntu 18.04.5 and macOS Mojave 10.14.6. All built correctly on both systems. Compiled progs work on macOS but fail on Ubuntu. For example: On Ubuntu when I run the muxing program with very basic info I get this: devⓐboots:~/code/new_ffmpeg/FFmpeg-master/doc/examples$ ./muxing test.mp4 [mpeg4 ⓐ 0x5626024f8b40] [IMGUTILS ⓐ 0x7ffdd2893080] Picture size 0x0 is invalid [mpeg4 ⓐ 0x5626024f8b40] Ignoring invalid width/height values [mpeg4 ⓐ 0x5626024f8b40] [IMGUTILS ⓐ 0x7ffdd2893060] Picture size (...)
• 22:02
  Using moviepy, how can I splice up long videos into 8-second bits? - ekinugurel Newest 'ffmpeg' Questions - Stack Overflow
  relatively new python user here. I'm trying to use moviepy to splice up 5 min long videos into 8-second bits. I used the code in this thread to extract subclips and it works. I did the following to make it a loop that covers the whole video, but I only get one 8-sec video as an output: from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip videopath = '../img/videos/Mopac+Cesarchavez-1.m4v' for sec in videopath: sec = 0 ffmpeg_extract_subclip(videopath, sec, sec+8.00, "../img/videos/subclips/testclip.mp4") if sec == (...)
• 19:53
  stream server with multiple arrivals of ffmpeg streams - Gamepigeek Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for the means to make a server which receives all the FFMPEG streams that we send to it (exactly like FFSERVER which is too old). I want us to send with a line (for example): "ffmpeg", "-loglevel fatal", "-f fbdev", "-r 30", "-i / dev / fb0", "-c: v h264_omx", "-profile: v baseline", "-b: v BITRATE", "-flags: v + global_header", "-bsf: v dump_extra", "-f rawvideo", "tcp: //127.0.0.1: 1234" and receive this stream on another server and redistribute it on a smooth web page! I research how to do for 2 (...)
• 19:03
  Generated ffmpeg video seems to be not a real video file - asored Newest 'ffmpeg' Questions - Stack Overflow
  I try to create a video with ffmpeg and save it to the device with gallery_saver package for Flutter. The ffmpeg command works well and the video is created. But GallerySaver does not save it. As result I get no error, but a false boolean for the success argument. This is the ffmpeg output. Is this a valid video mp4 file? Restarted application in 683ms. [38;5;244m[Easy Localization] [39;49mStart [38;5;244m[Easy Localization] [39;49mInit state [38;5;244m[Easy Localization] [39;49mBuild [38;5;244m[Easy Localization] [39;49mDevice locale (...)
• 18:48
  FFmpeg getting issue while creating input with png ,video,draw text - Konduri Sai Aditya Newest 'ffmpeg' Questions - Stack Overflow
  I am getting an error "Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_drawtext_3" for the below command, I don't know where it is going wrong. Can anyone help with this issue? ffmpeg -i test.png -i test.mp4 -y -filter_complex [1:v]scale=1152:648[scale0];[scale0]rotate=0:c=blackⓐ0:ow=rotw(0):oh=roth(0)[rotate0];[0:v][rotate0]overlay=304.2:172.29;drawtext=fontfile=test.ttf:text=hi text:fontsize=40:fontcolor=white:x=426.05:y=852.04 -pix_fmt yuv420p (...)
• 16:55
  Remove Rotate metadata from mp4 - mbajur Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to remove or modify a rotate param from my mp4 file using ffmpeg. Based on some google results, i've ended up with such command (i've tried a few more but none of them worked): $ ffmpeg -i ./source.mp4 -metadata rotate=0 ./output.mp4 But it's not working at all. The rotate=270 metadata param is still there in the output file. Can you please advise me on how it should be done? I'm using ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 9 2013 20:00:03 with Apple LLVM version (...)
• 16:04
  ffmpeg how to use the concat video filter with a input TEXT file - Tom Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to combine multiple videos using the concat video filter ffmpeg -y -i tempvid0.mp4 -i tempvid1.mp4 -f lavfi -t 0.1 -i anullsrc -filter_complex "concat=n=2:v=1:a=1 [v][a]" -map "[v]" -map "[a]" out.mp4 The issue is that I want to have -i tempvid0.mp4 -i tempvid1.mp4 in a text file because I have several hundred clips I want to concat and it does not fit in the command line. How can I use the above command with a input of a text (...)
• 15:53
  Seeking to Start Time in Piped FFMPEG Input - Trevor Ballard Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert a series of videos into a livestream with FFMPEG. To do this, I have a program which copies video files to stdout and have configured ffmpeg to read from a pipe input. The only issue is I cannot seek to a particular start time with -ss. I can specify duration with -t, but the output will always begin at the start of the input stream. For example: cat input.ts | \\ ffmpeg -ss 00:01:15 \\ -t 30 \\ -i pipe: \\ -c:v copy \\ -c:a copy \\ output.ts FFMPEG reports pipe:: could not seek to position XXXX.XX and begins from the start (...)
• 15:14
  Given a constant frame rate H.264 MP4, how to get PTS rounding method used during encoding using ffmpeg? - Lincolnhuj Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg can convert the video to specified constant frame rate. It has round parameter to specify timestamp(PTS) rounding method. It could be zero, int, down, up and near. Given a constant frame rate H.264 mp4 video, how can we determine which PTS rounding method was used to encode this video?
• 13:09
  How do I specify the HEVC codec in the HTML5 video source type attribute? - nfrasser Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to load and play a smaller HEVC-encoded video on web browsers with support for it. I'm using this code on Safari 11 (macOS 10.13), which has support for the HEVC format. Video not supported In Web Inspector > Network Panel, I see that Safari loads both clip.mp4 and clip-hevc.mp4. If I inspect the video element, I see that clip.mp4 is playing, not clip-hevc.mp4. I see the same thing on iOS 11. When I call HTMLMediaElement.canPlayType() on the types I specified, I get maybe on (...) -- HTMLMediaElement.canPlayType()
• 12:46
  How to combine The video and audio files in ffmpeg-python - Isaac Wassouf Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to combine a video(with no sound) and its separate audio file I've tried ffmpeg ffmpeg -i video.mp4 -i audio.mp4 -c copy output.mp4 and it works fine. i'm trying to achieve the same output from ffmpeg-python but with no luck. Any help on how to do this?
• 08:25
  FFMPEG screen capture outputting very poor and inconsistent framerate as webm with no audio - user3625087 Newest 'ffmpeg' Questions - Stack Overflow
  I've been testing different parameters to capture my desktop video and audio (desktop audio, not mic) and I find that no matter what settings I have, the resulting webm file's framerate is around 5fps and is horribly inconsistent. It starts at around 20fps and slowly drops over time until about 4-5fps. I'm not really sure what I'm doing wrong, but here is the basic command I'm using: ffmpeg -y -video_size 1920x1080 -f gdigrab -framerate 60 -i desktop -c:v libvpx-vp9 -acodec libvorbis -c:a libopus -b:v 2M -threads 4 output.webm I've (...)
• 03:15
  Unable to get video via uvc_gadget to the host pc - Zain Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to setup a raspberry pi board as a piping device which could receive video from a camera or any other source and pipe it to the host pc. I am following the tutorial mentioned here https://gist.github.com/justinschuldt/36469e2a89d95ef158a8c4df091e9cb4 I am able to successfully stream webcam video to the host pc. What I wanted to do was to use a video file instead of the stream from the webcam. In order to do that I did as follows Created a dummy v4l2loopback device Created uvc_gadget following the tutorial above My setup looks like this  (...) -- https://gist.github.com/justinschuldt/36469e2a89d95ef158a8c4df091e9cb4, , , , ,

17 September

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

• 23:15
  Adrielcafe AndroidAudioConverter Conversion Problem: Nothing happening - Richard Newest 'ffmpeg' Questions - Stack Overflow
  I have implemented this project with Android and for some reason it does not seem to be working. It says conversion starting, but doesn't ever do anything past this. I am using the following code: IConvertCallback myCallback = new IConvertCallback() ⓐOverride public void onSuccess(File convertedFile) Toast.makeText(MainActivity.this, "SUCCESS: " + convertedFile.getPath(), Toast.LENGTH_LONG).show(); ⓐOverride public void onFailure(Exception error) Toast.makeText(MainActivity.this, "ERROR: " + error.getMessage(), (...)
• 22:46
  C# WinForms, play video using the FFmpeg library - Damn Vegetables Newest 'ffmpeg' Questions - Stack Overflow
  According to web search results, FFmpeg.AutoGen provides video/audio frames with timing data, and I could use them to render the way I want. But I cannot find a simple example for playing a video file on a WinForms window, using FFmpeg. In the example file, I can see code for initialisation and decoding video frames. How to play those frames smoothly on WinForms? Should I use some sort of DirectX library? -- In the example file
• 21:53
  ffmpeg concat and scale simultaneously? - Peter Zhukov Newest 'ffmpeg' Questions - Stack Overflow
  I have two ffmpeg commands: ffmpeg -i d:\\1.mp4 -i d:\\1.mp4 -filter_complex "[0:0] [0:1] [1:0] [1:1] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" d:\\3.mp4 and ffmpeg -i d:\\1.mp4 -vf scale=320:240 d:\\3.mp4 How to use them both simultaneously?
• 20:19
  Concatenate Videos using FFMPEG : The outro's (last video concatened) speed is buggy - Ali Doggaz Newest 'ffmpeg' Questions - Stack Overflow
  as the title says I have a problem with ffmpeg. I have a folder containing multiple video clips (including the Outro, which is an mp4 video). I'm running this code to concatenate the videos : os.system("(for %i in (*.mp4) do ⓐecho file '%i') > mylist.txt") os.system('more +1 "mylist.txt" > "Final_List.txt"') os.system("echo file 'Outro.mp4' >> Final_List.txt") #Final_list.txt will contain all the videos' paths, and will have the outro's path on its last line. os.system("ffmpeg -f concat -i Final_List.txt -c copy (...) -- https://gofile.io/d/zqadc2, https://gofile.io/d/G9Zbjo
• 19:59
  ffmpeg flip horizontally webcam to virtual video camera - Kaiser Schwarcz Newest 'ffmpeg' Questions - Stack Overflow
  I need to horizontally flip my webcam image for a meeting. I tried the instructions in this site https://wiki.archlinux.org/index.php/Webcam_setup#Applications which uses v4l2 and v4l2loopback to generate a virtual camera. # modprobe v4l2loopback Check the name of the newly created camera: $ v4l2-ctl --list-devices Dummy video device (0x0000) (platform:v4l2loopback-000): /dev/video1 Then you can run ffmpeg to read from your actual webcam (here /dev/video0) and invert it and feed it to the virtual camera: $ ffmpeg -f v4l2 -i /dev/video0 -vf (...)
• 18:30
  discord.py [mp3 ⓐ 000001dc99bec540] Estimating duration from bitrate, this may be inaccurate - user13690031 Newest 'ffmpeg' Questions - Stack Overflow
  I have a problem with "[mp3 ⓐ 000001dc99bec540] Estimating duration from bitrate, this may be inaccurate", using discord.py. Everything works (bot is speaking the text, which we tell him), but, at the end, always shows it. How can I solve it? if _command == "speak": try: await message.delete() try: error = _message[1] except IndexError: message = await _channel.send("Where is my text, which I have to speak?!") await asyncio.sleep(3) await message.delete() return channel = message.author.voice.channel voice = (...)
• 18:00
  Silence Quiet Audio Sections Using ffmpeg - Suuuehgi Newest 'ffmpeg' Questions - Stack Overflow
  I would like to silence silent audio passages -- noise suppression -- using ffmpeg on the go. That is: Inject silence when the volume is below x dB (the perfection would be a smooth transition). I had a look at silenceremove and silencedetect but that either cuts or requires a multi-step process. I also had a look at the dcshift filter but that led nowhere as well. Any ideas? -- silenceremove, silencedetect, dcshift
• 19:48
  How to divide a live stream coming from a camera into many 60-second video clips in mp4 format with ffmpeg - guidop21 Newest 'ffmpeg' Questions - Stack Overflow
  Using the following code: ffmpeg -f dshow -rtbufsize 1000M -i video = "Game Capture HD60 S (Video) (# 01)" -codec copy -map 0 -f segment -segment_time 60 -reset_timestamps 1 "C: \\ Program Files (x86) \\ ffmpeg \\ test \\ clips \\ testfile_piece_% 02d.mp4 " I have the following problem: "Could not find tag for codec rawvideo in stream # 0, codec not currently supported in container Could not write header for output file # 0 (incorrect codec parameters?): Invalid argument" How can I fix it? Thank (...)
• 19:18
  Split video with MobileFFmpeg - Vitor Ferreira Newest 'ffmpeg' Questions - Stack Overflow
  I need to split a video into pieces smaller than 15 seconds using ffmpeg on android. For this I am using this library to use FFmpeg and tried to use the code below, but it did not work. private val destPath = "/storage/emulated/0/DCIM/TESTFOLDER" if (video != null) val command = "ffmpeg -i $video -c copy -map 0 -segment_time 00:00:15 -f segment $destPath output%03d.mp4" mProgressDialog.show() try val executionId = FFmpeg.executeAsync(command) _: Long, returnCode: Int -> when (returnCode) RETURN_CODE_SUCCESS ->  (...) -- library
• 17:27
  frame appears 0.000057 second before pts_time using ffmpeg - Lincolnhuj Newest 'ffmpeg' Questions - Stack Overflow
  This video is created using ffmpeg command from a series of images with number and expected timestamp on it (assuming 120 fps constant frame rate): ffmpeg -framerate 120 -i %03d.png -crf 0 -x264opts keyint=1:min-keyint=1 120.mp4 It's supposed to be constant frame rate, and all the frames are I frames. I expect frame 6 will show up exactly at time 0.05 second [0.05, 0.0583333), as the pts_time shown in ffmpeg and ffprobe: [Parsed_showinfo_0 ⓐ 0x7fba11404080] n: 6 pts: 768 pts_time:0.05 pos: 36021 fmt:yuv444p sar:0/1 s:1552x878 i:P iskey:1 (...) -- This video, this video, constant frame rate video
• 16:16
  Can we have the same directory structure with hls_nested on as with default behaviour i.e. hls_nested off in nginx; - Vaibhav Sharma Newest 'ffmpeg' Questions - Stack Overflow
  I have an Nginx application block inside the RTMP module as application hls live on; hls on; hls_fragment 4; hls_playlist_length 240m; hls_path /opt/hls/ This creates files as $name.m3u8 inside /opt/hls/ What I want something like files to be store here /opt/hls/$name/$name.m3u8 and correspondingly ts files as /opt/hls/$name/$name-timestamp.ts I tried using hls_nested on; inside the block but it just makes a directory with the file name as index.m3u8 Please let me know if it is even possible to do from nginx Thanks in (...)
• 15:29
  How can ffmpeg stream a never-ending video file to RTMP - Yooooomi Newest 'ffmpeg' Questions - Stack Overflow
  I currently have an issue publishing a constantly appended video file to RTMP. My workflow is I proxy the MediaSource class in the browser. From this I upload every byte appended to the buffers in a self hosted server The server finally appends the video.avi file. I want to stream that constantly updated avi file to an RTMP endpoint. The issue I encounter is that ffmpeg will stop streaming the file once it has reached the duration it had when launching ffmpeg. I don't know much about streaming videos and if it can be done "just" by appending an (...)
• 15:29
  MXF To dash conversion using FFMPEG - user726720 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a mxf to dash using FFMPEG. But when i do so the dash file doesnt play in VLC. I have a working dash file (got sample from some website), so i'm sure my VLC seems to work fine and can read dash. ffmpeg -re -i "XXX-05763.mxf" -pix_fmt yuv420p -map 1:v -map 0:v -map 0:a -c:a aac -c:v libx264 -use_template 1 -use_timeline 1 -init_seg_name "init-stream$RepresentationID$-$Bandwidth$.mp4" -adaptation_sets "id=0,streams=v id=1,streams=a" -dash_segment_type mp4 -f dash XXX-05763.mpd Is there something I'm missing in the (...)
• 14:08
  Can we have the same directory structure with hls_nested on as without it - Vaibhav Sharma Newest 'ffmpeg' Questions - Stack Overflow
  I have an Nginx application block inside the RTMP module as application hls live on; hls on; hls_fragment 4; hls_playlist_length 240m; hls_path /opt/hls/ This creates files as $name.m3u8 inside /opt/hls/ What I want something like files to be store here /opt/hls/$name/$name.m3u8 and correspondingly ts files as /opt/hls/$name/$name-timestamp.ts I tried using hls_nested on; inside the block but it just makes a directory with the file name as index.m3u8 Please let me know if it is even possible to do from nginx Thanks in (...)
• 13:21
  AccessDenied executable in AWS Lambda Layer - FFMPEG - user3526037 Newest 'ffmpeg' Questions - Stack Overflow
  I have an FFMPEG executable as a Lambda Layer, deployed with Serverless framework. Unfortunately I'm not able to execute it, getting AccessDenied & EACCESS errors. I'm tried fixing it with FS-CHMOD like the following: chmodSync('/opt/ffmpeg/ffmpeg', 0o100); And getting this error: Error EROFS: read-only file system, chmod '/opt/ffmpeg/ffmpeg' My question is... what now?
• 12:18
  Extract subtitles from mp4 using ffmpeg - abelian Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to extract subtitles from an mp4 file but I can't get the output format right. I have reason to believe that this is an image based subtitle format. What's the correct command the extract the subtitles so that I can view the subtitle images? Thank you! --
• 11:06
  ffmpeg: kmsgrab to v4l2 loopback device - Vamshi Surabhi Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to pipe my screen into a v4l2 loopback device (as a hack to share screen during calls on wayland). This is what I tried so far: $ sudo modprobe vl42loopback $ sudo ffmpeg -device /dev/dri/card0 -f kmsgrab -i - -vf 'hwmap=derive_device=vaapi,scale_vaapi=w=1920:h=1080:format=nv12' -f v4l2 /dev/video2 ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10.1.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-fontconfig --enable-gmp (...)
• 09:21
  How to check if FFMpeg avformat_open_input was interrupted by timeout? - Anton Issaikin Newest 'ffmpeg' Questions - Stack Overflow
  AVDictionary *opts = NULL; AVFormatContext *ctx = NULL; av_dict_set(&opts, "stimeout", std::to_string(mStartingTTLInSec * 1000000).c_str(), 0); int ret = avformat_open_input(&ctx, szFilePath, NULL, &opts); ****** (I think this is why I got a -1 to my question) 'ret' is just a number, but I need to compare it with some library constant, because my application is working in different systems. My code is working, I just want to know the error code to check if avformat_open_input was failed because of "stimeout". I see FFMpeg log (...)
• 09:07
  ffmpeg av_read_frame return error code -5 - Jianhua Zhu Newest 'ffmpeg' Questions - Stack Overflow
  I use dll of ffmpeg read the USB camera, display the picture on the control, and save the image to the file. At first, the reading is normal. The sound and image can be saved. But after reading for a few minutes, data can not be read, av_read_frame return error code is - 5, and the camera is automatically turned off. Direct use ffmpeg.exe when I go to read the camera and save the file, it won't be a problem for hours. Anybody can you tell me how to return - 5 error code and how to deal with it? ffmpeg version is 4.2.3 The code like this: while (1) if ((ret = (...)
• 08:47
  ffmpeg create screenshots full of artefacts and completly illegible - Hekimen Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg to create 15 screenshots from video with simple command ffmpeg -ss 10:00 -y -i 'video.mp4' -f mjpeg -vframes 1 -an 'image.jpg' command is executed 15x in row with different -ss time. But sometimes, completly randomly, images - all 15, even each of them is created by own process, are basicaly generated full of artefacts and completly illegible: I believe is not problem with video, as they are almost always different - codecs, bitrate, lenght, quality, resolution, etc. I was trying search similar problem, but only same problem i (...) -- ,
• 07:32
  Creating P-I-P video while also adding transparency to the In-Picture? - Eslake Newest 'ffmpeg' Questions - Stack Overflow
  Starting with two clips of the same format, scale, etc... I am trying to use ffmpeg to add transparency to one of them while it is scaled down and used as an overlay for a translucent picture-in-picture. In simplest terms, I am trying to bring these two features together. ffmpeg -i FullScreenVidio.mp4 -i PictureWindow.mp4 -filter_complex "[1]scale=iw/2.15:ih/2.15 [pip]; [0][pip] overlay=25:25" -profile:v main -level 3.1 -b:v 440k -ar 44100 -ab 128k -s 1920x1080 Result.mp4 =vf eq=brightness=0.25:contrast=1.5:saturation=1.5 I know it is possible, since I (...)
• 06:59
  Download from sites that require a login using ffmpeg - FastOFF Newest 'ffmpeg' Questions - Stack Overflow
  I want to download HLS videos from a site that needs to be logged in using FFmpeg, meaning I have to enter my username and password to access the videos, and I do not know how to enter the login information through FFmpeg... Can anyone help me?
• 03:54
  FFMPEG with VP9 + RTSP - Jim Jin Newest 'ffmpeg' Questions - Stack Overflow
  When we use HEVC + RTSP, ffmpeg works fine. The stream is captured by webcam. ffmpeg -f dshow -rtbufsize 100M -f vfwcap -i "0" -strict experimental -c:v hevc_qsv -f rtsp -rtsp_transport tcp rtsp://127.0.0.1/live/test The output is like: frame= 355 fps= 37 q=-0.0 size=N/A time=00:00:11.27 bitrate=N/A dup=159 drop=0 speed=1.18x Then we switch to VP9 + RTSP. ffmpeg -f dshow -rtbufsize 100M -f vfwcap -i "0" -strict experimental -c:v libvpx-vp9 -f rtsp -rtsp_transport tcp rtsp://127.0.0.1/live/test The fps and speed looks too slow: frame= (...)
• 00:33
  Extract frame from secondary videostream FFMpeg - Fedor Zhilkin Newest 'ffmpeg' Questions - Stack Overflow
  I work with FFMpeg and process some .mkv videos that can have more than one videostream. How I can extract frame from other videostream (not from primary)? I want to extract one frame from each videostream using FFMPeg. Any ideas?
• 00:27
  Undefined symbol despite libraries being linked - Areopag Newest 'ffmpeg' Questions - Stack Overflow
  currently I'm trying to write a JNI function using ffmpeg features, but when I'm trying to run my java executable after a clean compile I get the following error: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java: symbol lookup error: /lib/libmediaserv_ffmpeg.so: undefined symbol: _Z19avformat_open_inputPP15AVFormatContextPKcP13AVInputFormatPP12AVDictionary I can't figure out why ffmpeg is not linked correctly. mediaserv_ffmpeg.cpp: #include #include #include JNIEXPORT jobject JNICALL Java_mediaserv_ffmpeg_getMetadata (JNIEnv* (...)

16 September

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

• 22:38
  Issue using moviepy package (Python) - carm91 Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg_extract_subclip function from moviepy to process video files. However, the video cut I get is not the same length between start time and end time I set. For example, writing: from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip clip=clip_filename cutclip="cutvideo.avi" ffmpeg_extract_subclip(clip_filename, 0, 10, targetname=cutclip) I get a video of length 10,03 or something like that (in terms of frame count, I get 602 frames instead of exactly 600). Is there a way to get a more accurate (...)
• 21:03
  How can I record my usb webcam to an mp4 format? [duplicate] - Todd Murphy Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying for hours to record my USB webcam to a .mp4 file format. The only format that works is .avi right now. I am on a RPi using video4linux2. This code does not work: ffmpeg -f video4linux2 -framerate 30 -s 1280x720 -i /dev/video0 /home/pi/videos/output.mp4 When opening the file, it gives me an error in my video player. I also tried adding "-f mp4" but that does not work either. Please help. Thanks!
• 19:26
  iOS local host RTMP server - estoril Newest 'ffmpeg' Questions - Stack Overflow
  I have been tasked with creating an iPad application, iOS 12.3 latest support, to run as a local RTMP server. Purpose being, external devices connect to this local RTMP server on iOS iPad, either via the iPad's wifi connection or enabled hotspot, and playback the display of external devices (mirror) onto the iPad. I have been successful with creating a local host HTTP server, but upon connecting with external devices the local server on the iPad quits. I will be using open source software for decoding and playback of video feed such as vlc or ffmpeg, but need guidance on an (...) -- https://github.com/sallar/mac-local-rtmp-server
• 17:17
  Fluent-FFMPEG : Failed to configure output pad on Parsed_concat_0 [duplicate] - Suo Newest 'ffmpeg' Questions - Stack Overflow
  Merging videos with Fluent-FFMPEG Environment NodeJS v10 Fluent-FFMPEG Description I'm currently trying to make a webservice merging videos with Fluent-FFMPEG. It's quite simple : INPUT You have N Videos with the same resolution, format, codec (both audio and video), framerate and bitrate (also for audio and video). prepareAndExecuteMergeProcess(entity, files) let mergeProcess = ffmpeg() for (let file in files) let video = files[file]; mergeProcess.addInput(this.getInputTempDir(video)); //InputTempDir is the (...)
• 17:26
  FFmpeg - concat videos error, do not match the corresponding output link? - wensefu Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concat some video into one single video using ffmpeg. input information: a.mp4 1920x808 , b.mkv 1280x720 First I tried command below and it works fine: ffmpeg -i a.mp4 -i b.mkv -f lavfi -t 0.1 -i anullsrc -filter_complex [1:v]scale=1920:808:force_original_aspect_ratio=decrease,pad=1920:808:(ow-iw)/2:(oh-ih)/2[v1]; [0:v][0:a][v1][1:a]concat=n=2:v=1:a=1[outv][outa] -map [outv] -map [outa] -vcodec libx264 -crf 27 -preset ultrafast -threads 2 out.mp4 And then I put 'b.mkv' first: ffmpeg (...)
• 16:47
  How many FFMPEG commands can I run on a machine - Mickey Newest 'ffmpeg' Questions - Stack Overflow
  Assuming that I have a machine that has the specifications listed below, how many ffmpeg commands (that are taking video from IP camera and encoding it for further stream) could be running at the same time: i7 9th gen 16 Gb of RAM NVIDIA GeForce GTX 1060 3GB What is the resource takeup for each command like that. Example of one of the commands I am running could is below. ffmpeg -rtsp_transport tcp -i "rtsp://ipaddress:port/profile" -framerate 30 -video_size 1280x720 -vcodec libx264 -preset veryfast -maxrate 1984k -bufsize 3968k -vf "format=yuv420p" -g (...)
• 16:47
  YouTube-DL Python output file format not mp4 - Sushil Newest 'ffmpeg' Questions - Stack Overflow
  I have written a small piece of code in python to extract either the audio or the video from a YouTube video. Here is the code: from __future__ import unicode_literals import youtube_dl link = input("Enter the video link:") while True: choice = input("Enter a for audio file, v for video file:") if choice == "a" or choice == "v": break ydl_opts = if choice == "a": ydl_opts = 'format': 'bestaudio/best', 'postprocessors': [ 'key': 'FFmpegExtractAudio',  (...)
• 16:42
  How to batch auto-generate videos according to audio length - yociba Newest 'ffmpeg' Questions - Stack Overflow
  I have hundreds of folders of Spanish short stories, with each folder having dozens of individual .MP3 files for each dialogue spoken. Along with the .MP3 files, lies in the folder, a JSON file of the format ["folder1-dialogue-1", "folder1-dialogue-2",...]. I want to generate images, each containing the text values of the JSON file, like folder1-dialogue-1 and generate videos combining that image with its corresponding audio (folder1-dialogue-1.mp3), and then merge all the videos in the folder into one - folder1.mp4 How do I go about doing this? P.S I'm not straight up (...)
• 16:08
  How to save python compatible audio file from JavaScript blob - Talha Anwar Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to save an audio blob to the backend. Here is an audio blob const blob = new Blob(chunks, 'type' : 'audio/wav; codecs=0' ); Here is the upload function function uploadAudio( blob ) var reader = new FileReader(); reader.onload = function(event) var fd = ; fd["data"] = event.target.result; $.ajax( // contentType:"application/x-www-form-urlencoded; charset=UTF-8", type: 'POST', url: 'testing/', data: fd, dataType: 'text' ).done(function(data)  (...)
• 16:06
  ffmpeg concat, jump to next video when decoding error with the current file - Ousmane Kissima DOUKARA Newest 'ffmpeg' Questions - Stack Overflow
  I have a play list and use the concat command to play my files (mp4 videos).The problem I have is that ffmpeg stops when there is a decoding error while playing a stream. How can I make it jump to the next video when an error occurs. Thanks
• 15:16
  Getting error while deploying application with node-media-serve module and ffmpeg buildpack in heroku - Anurag Gautam Newest 'ffmpeg' Questions - Stack Overflow
  I have created a MERN app with video streaming by using node-media-serve module, with following configuration trans: ffmpeg: '/vendor/ffmpeg', tasks: [] , ..... In local I have installed ffmpeg in trans.ffmpeg. and its working fine, But how we need to install ffmpeg in heroku . I have tried by adding heroku buildpacks heroku buildpacks:add https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git but its showing me error. May be some issue with config only. Heroku error : 2020-09-16T11:23:54.292896+00:00 (...)
• 14:25
  setPTS outputting wrong duration (Ffmpeg) - WebDiva Newest 'ffmpeg' Questions - Stack Overflow
  I have a video of duration 14 seconds. I applied the setPTS filter to make it 3 times slow. So the total duration should be 42s (14*3). But the output gives a 49s long video. Here is the command: ffmpeg -i video.mp4 -filter_complex "[0:v]setpts=3*PTS[v];[0:a]atempo=0.6,atempo=0.5[a]" -map "[v]" -map "[a]" output.mp4 What is wrong with this command? I tried it for different videos but all has the same weird issue. Any help will be appreciated. Regards. Log: ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10.2.1 (...)
• 13:36
  YouTube-DL Python details of extracted audio file are not displayed - Sushil Newest 'ffmpeg' Questions - Stack Overflow
  I have written a small piece of code in python to extract the audio from a YouTube video. Here is the code: from __future__ import unicode_literals import youtube_dl link = input("Enter the video link:") ydl_opts = 'format': 'bestaudio/best', 'postprocessors': [ 'key': 'FFmpegExtractAudio', 'preferredcodec': 'mp3', 'preferredquality': '192', ], with youtube_dl.YoutubeDL(ydl_opts) as ydl: info_dict = ydl.extract_info(link, (...) -- ,
• 11:52
  Streaming RTMPS with ffmpeg 3.4 - mgukov Newest 'ffmpeg' Questions - Stack Overflow
  I trying to stream to RTMPS with FFMPEG 3.4 ffmpeg -i video7.mp4 -vcodec copy -acodec aac -b:a 128k -f flv rtmps://myrtmp-test.com:8443/video/test10 ffmpeg version n3.4.8 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: --prefix=/home/mgukov/dev/vyu/lib_broadcaster --pkg-config-flags=--static --extra-cflags=-I/home/mgukov/dev/vyu/lib_broadcaster/include --extra-ldflags=-L/home/mgukov/dev/vyu/lib_broadcaster/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/home/mgukov/dev/vyu/lib_broadcaster/bin --enable-gpl (...)
• 11:14
  FFMPEG VBS process simultaneous files - user726720 Newest 'ffmpeg' Questions - Stack Overflow
  I need to achieve to process multiple video files simultaneously rather then in series. The below code processes files to be one after another. How can I run multiple ffmpeg sessions to convert the files simultaneously The below code is working fine but processes one file at a time: For Each oFile In folderFSO.GetFolder("C:\\Users\\admin\\Documents\\TestFiles").Files If UCase(folderFSO.GetExtensionName(oFile.Name)) = "MXF" Then strSplashImagePath = Left(oFile.Name, Len(oFile.Name) - 4) & ".mp4" Cmd = "cmd.exe /c ffmpeg.exe -y -i (...)
• 10:41
  Batch file to perform multiple conversions in a row - ben158 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to write a batch file that can be launched from Handbrake GUI with the "send file to" feature, that will split an MKV into chapters with MKVmerge, then convert all those new files into mp4s with ffmpeg. Handbrake passes only one argument into the batch file, the full file path of the output (surrounded by quotes). I'm very new to batch scripting and am having difficulty getting it all to work together -- all the individual parts work just fine when absolute paths are given. Here's the content of the .bat file: START /WAIT "C:\\Program (...)
• 09:58
  Change video resolution ffmpeg - liorko Newest 'ffmpeg' Questions - Stack Overflow
  I have videos with different resolution. I want that all of them will be in resolution of 480x320. I tried the command: ffmpeg -i %s_ann.mp4 -vf scale=480x320,setsar=1:1 %s_annShrink.mp4' %(dstfile,dstfile) but the output of the videos are files with the size of 0 kb. What I'm doing wrong?
• 04:54
  Get waveform data from audio file using FFMPEG - Lutando Newest 'ffmpeg' Questions - Stack Overflow
  I am writing an application that needs to get the raw waveform data of an audio file so I can render it in an application (C#/.NET). I am using ffmpeg to offload this task but it looks like ffmpeg can only output the waveform data as a png or as a stream to gnuplot. I have looked at other libraries to do this (NAudio/CSCore) however they require windows/microsoft media foundation and since this app is going to be deployed to azure as a web app I can not use them. My strategy was to just read the waveform data from the png itself but this seems hacky and over the top. (...) -- output the waveform data as a png or as a stream to gnuplot, this

15 September

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

• 10:04
  How to convert series of images to video using ffmpeg c++? [closed] - Devil Newest 'ffmpeg' Questions - Stack Overflow
  I have tried command like ffmpeg -r 1 -f image2 -i .\\Img_%d.jpg -vcodec mjpeg -qscale 1 video.avi But need a c++ ffmpeg program to convert number of images to video, is there any solution ?
• 23:22
  How to Configure nginx with stunnel to accept parameters for different FB Live Streams OR rtmps with FFMPEG - Yogesh Agarwal Newest 'ffmpeg' Questions - Stack Overflow
  I want to setup RTMPS and learned that only way around is by using nginx and stunnel. I have the setup and it works with just one configured key. I have several different keys and all are dynamic. A lot of different urls too. My Goal is to add a parameter or some way by which i can send the custom url to nginx and it can send to Stunnel, and it can read the custom url and forward the encrypted stream to that url. I am able to get everything done right via ngnix and stunnel but with preconfigured key only - But i want Dynamic key here.. just like a parameter (...)
• 21:11
  FFMPEG: crop a video without losing the quality - mrana Newest 'ffmpeg' Questions - Stack Overflow
  I have mp4 video of 1920x1080. I would like to crop the video to 480x270 without quality loss. I am using the following command: ffmpeg -i input.mp4 -filter:v "crop=480:270:200:200" -crf 23 output.mp4 I also tried: ffmpeg -i input.mp4 -filter:v "crop=480:270:200:100" -c:a copy -qp 0 output.mp4 I used -crf 23 and -qp 0 for loseless video cropping, but after cropping video has lost quality. Does anyone know how I can crop the video without losing the (...)
• 20:56
  FFMPEG - concatenation of a dynamic number of files with different codecs - timrodenbroeker Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to write a bash-script for FFMPEG that concatenates a dynamic number of video-files with different codecs. This is what i have right now: The script basically does the job and concatenates 3 videos. ffmpeg -i 1.mp4 -i 2.mp4 -i 3.mp4 \\ -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a]" \\ -map "[v]" -map "[a]" out.mp4 But as mentioned i would like to write a script which can process a dynamic number of video-files. For this purpose i have created a text file that contains all the source-material. file (...)
• 20:15
  How to set audio speed to 0.3 in Ffmpeg? - WebDiva Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg to set the audio and video speed to 0.3x. I can set the video speed but can't set the audio speed to 0.3x. Here is the command ffmpeg -y -i video.mp4 -vf "setpts=PTS/0.3" -r 50 -c:v mpeg4 -b:v 1500k -af "atempo=0.3" output.mp4 It says: Value 0.300000 for parameter 'tempo' out of range [0.5 - 100] Is there a workaround? Any help will be appreciated. Regards.
• 16:15
  Split a live video stream from a webcam with ffmpeg [duplicate] - guidop21 Newest 'ffmpeg' Questions - Stack Overflow
  I can show the live streaming of my webcam on the screen with the following command: ffplay -f dshow -video_size 1280x720 -i "video = Integrated Webcam" I can also save it in mp4 format in a folder with the following command: ffmpeg -f dshow -i video = "Integrated Webcam" -f mp4 "C: \\ Program Files (x86) \\ ffmpeg \\ test \\ clips \\ out% 02d.mp4" How do I save in the same folder as the 60 second video clips of my live streaming ?? Thanks for your (...)
• 17:40
  How to make HLS start from the begining - Ariel Argañaraz Newest 'ffmpeg' Questions - Stack Overflow
  I need some help with HLS streaming, I'm trying to create a playlist for streaming, I'm using ffmpeg to generate the files and the .m3u8 files. And for playing i'm using a web page with videojs player The idea is to simulate a live streaming using files already created. The problem is that in some version of iphone works and in another does not work. The problem is that when I start play the video in the Safari browser of my phone it freezes for a while and then download and play the last segment. for example if the video is split (...)
• 17:12
  FFMPEG from VBS - user726720 Newest 'ffmpeg' Questions - Stack Overflow
  I'm having an issue while running ffmpeg from VBS as follows: Cmd = "cmd.exe /K " & Chr(34) & """C:\\Users\\admin\\Documents\\ffmpeg\\bin\\ffmpeg.exe""" & Chr(34) & " -i " & Chr(34) & """C:\\Users\\admin\\Documents\\TestFiles\\3000012936-TXMHD.mxf""" & Chr(34) & " -vcodec copy -acodec copy " & Chr(34) & """C:\\Users\\admin\\Documents\\TestFiles\\3000012936-TXMHD.mp4""" & Chr(34) '& " 2> " & Chr(34) & "LogFile.txt" & Chr(34) objShell.Run Cmd, 10, True I'm getting error: The system cannot find the path (...)
• 16:45
  FFmpeg downloading entire live stream when making a small clip - stevendesu Newest 'ffmpeg' Questions - Stack Overflow
  Setup I'm using FFmpeg to generate video clips from M3U8 videos. The command looks like this: ffmpeg -ss -i -c:v copy -c:a copy -t -f mp4 -y out.mp4 For example, to create a 30-second clip starting at the 5-minute mark for a particular video, the command would be: ffmpeg -ss 300 -i https://example.com/path/to/1080p/index.m3u8 -c:v copy -c:a copy -t 30 -f mp4 -y out.mp4 Some caveats I'm already aware of: If -ss comes after -i then FFmpeg will attempt to download the entire M3U8 instead of just the relevant TS files, and will parse the (...)
• 14:56
  Transcode raw audio data (PCM | PCM_ALAW | PCM_ULAW) to an audio file with the MKA extension - bbdd Newest 'ffmpeg' Questions - Stack Overflow
  My task is to package raw audio data (PCM_ALAW, PCM_ULAW, PCM_S16LE, PCM_S16BE) into an MKA container. Looking through this example, I came across the question, how do I change the functions of receiving the input audio file, to the functions that accept raw data for packaging into an audio file. I need to make such functionality as in this original example: ffmpeg -f alaw -ar 8000 -ac 1 -i rawData test.mka But in my case, I can only use the ``ffmpeg` API library. The example shows the logic for receiving an audio file with a specific extension to determine the (...) -- this, example
• 14:55
  How to set pad with PHP-FFMpeg? - DenVebber Newest 'ffmpeg' Questions - Stack Overflow
  I use PHP-FFMpeg library (https://github.com/PHP-FFMpeg/PHP-FFMpeg) and try to do this: ffmpeg -i input.mp4 -vf "crop=960:1080, scale=960:1080,pad=w=960+iw:h=ih:x=960:y=0" output.mp4 I have a video with dimensions 1920x1080. In php I do this: $video = $ffmpeg->open('input.mp4'); $video->filters()->crop(new FFMpeg\\Coordinate\\Point(480, 0, true), new FFMpeg\\Coordinate\\Dimension(960, 1080)); $video->save(new FFMpeg\\Format\\Video\\x264('aac'), 'output.mp4'); I get a cropped video in the center of the frame but not on the (...) -- https://github.com/PHP-FFMpeg/PHP-FFMpeg
• 13:28
  FFMPEG set hls segments start time - DavidB Newest 'ffmpeg' Questions - Stack Overflow
  My code is: ffmpeg -i input.mp4 -framerate 30 -rtbufsize 100M -s 640x480 -c:v libx264 -b:v 1200k -minrate 1200k -maxrate 1200k -bufsize 1200k -vf mpdecimate -g 15 -c:a aac -b:a 96k -ac 2 -ar 44100 -preset veryfast -f hls -hls_segment_type fmp4 -hls_time 2 output.mp4 it generates .m4s chunks that are streamed perfectly with MediaSource API. Is it possible to move chunks start time to specified offset, so that stream to be start not from 0 but e.g. (...)
• 13:23
  Merging two audio files in Android using FFMPEG - Jeremy Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on an application that takes two audio files, and merges them into the respected channels. The way they are being equalized are not as good as I had hoped, So I want to adjust the volume of each file during the mixing phase. I've seen a couple of examples online, like this, this, and [this][3].. but none of them are working for me. Can someone direct me in the right direction with this? Much appreciation! I am using this library to execute: https://github.com/WritingMinds/ffmpeg-android-java Here is my code (EDIT) String files = "-i " (...) -- this, https://github.com/WritingMinds/ffmpeg-android-java
• 12:44
  Scalable solution for converting an image sequence to video - Jeanette Newest 'ffmpeg' Questions - Stack Overflow
  We are developing a stop motion app for kids and schools. So what we have is: A sequence of images and audio files (no overlapping audio, in v1. But there can be gaps between them) What we need to do: Combine the images to a video with a frame rate between 1-12 fps Add multiple audio files at a given start times encode with H265 to mp4 format I would really like to avoid maintaining a VM or Azure batch jobs running ffmpeg jobs if possible. Is there any good frameworks or third party APIs? I have only found transloadit as the (...)
• 11:25
  Creating a Master Playlist after creating multiple renditions with FFMPEG for multi bitrate VOD - Bill Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to upload a video to a server, convert the video file to 3 different videos with different resolutions (i.e. 1080p,720p, 480p), and then use FFMPEG to create a master playlist out of each of the resolutions all within the same command? Is this possible? So far I am able to upload a video and create 3 different resolutions but I haven't been able to use ffmpeg to create the master manifest. So far my FFMPEG command looks like this: ffmpeg -hide_banner -y -i beach.mkv \\ -vf scale=w=640:h=360:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -c:v h264 (...) -- https://docs.peer5.com/guides/production-ready-hls-vod/
• 10:20
  zoompan - set output image size to input width x height - Sarmad S. Newest 'ffmpeg' Questions - Stack Overflow
  I have the following command: [0]zoompan=z='min(zoom+0.0015,1.5)':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=125:s=1600x1066[z0]; But I want the value of s to be the same as input width x height. I have tried s='in_w:in_h' and other similar combinations, but it didn't work.
• 10:12
  ffmpeg - zoompan causing stretching - Sarmad S. Newest 'ffmpeg' Questions - Stack Overflow
  I have two images as input, both are 1600x1066. I am vertically stacking them. Then I am drawing a box and vertically stacking that box under both of the image. Inside of the box I write text, then I output a video that is 1080x1920. Everything works well, until I use zoompan to zoom in on the images, I get a weird behavior (see images included below). basically all input images including the box stretchs (shrink) vertically and no longer fit the entire height of the video which is 1920. The command (removed some drawtext commands from it): -filter_complex (...) -- https://i.stack.imgur.com/kTBto.jpg, https://i.stack.imgur.com/7faNn.png
• 07:45
  Alternate ways to play music on discord bot - Sathvik K S Newest 'ffmpeg' Questions - Stack Overflow
  I am currently using youtube-dl along with ffmpeg to play songs from my discord bot. However, searching for the song, downloading the video and extracting the audio takes a long time. So I wanted to know if there is any way to speed up the process so the music can be played almost instantaneously.
• 06:19
  change OpenCV to ffmpeg - beast Newest 'ffmpeg' Questions - Stack Overflow
  I am using earthcam links for data collection purposes. My implementation works perfectly fine on local but gives me an OpenCV: image broken error on CentOS 7 system. As ffmpeg is used in the background for OpenCV, I want to directly use ffmpeg to read m3u8 file retrieved from streamlink in the following way. streams = streamlink.streams(stream_link) q = list(streams.keys())[0] stream = streams['%s' % q] video_cap = cv2.VideoCapture(stream.url) ----> # Want to change this line to ffmpeg An example link that I am using in my problem is - (...) -- Nyc_5th_Street
• 04:17
  set useragent in ffmpeg - KMG Newest 'ffmpeg' Questions - Stack Overflow
  How to set useragent in ffmpeg ?. I implemented SWF verification in Media server and allowed some user agents for not to check SWF. But Problem is, I'm unable to set useragent in FFMPEG. As I need to repubish one of my stream with low bit rate to core server using ffmpeg. FFMPEG Version : ffmpeg version 1.2.6-7:1.2.6-1~trusty1 SWF verification enabled in 172.20.1.10 server Tried formats : ffmpeg -re -i "rtmp://10.11.12.13/live/mystreams -c copy -f flv "rtmp://172.20.1.10/live/testnew -headers "UserAgent: 'FMLE/3.0 (...)
• 03:38
  I am having an issue with playing sounds in discord.js - Sami Ali Özdemir Newest 'ffmpeg' Questions - Stack Overflow
  So, I am having problems when I try to run a sound on discord.js. Below is the code: const Discord = require('discord.js') const client = new Discord.Client() const token,prefix = require('../../config.json') const cmd = __filename.slice(__dirname.length + 1, -3).trim() client.on('message', message => function embed(title, content) message.channel.send('embed':'title': title,'description': content) if (!message.content.startsWith(prefix)) return if (...)
• 00:47
  ffmpeg: how to swap audio channels - Kevin Gilbert Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp4 file where the front and rear channels are swapped (front rear not left right). How can I swap the audio streams? What I've tried (amongst others): ffmpeg -i in.mp4 -filter 'channelmap=map=FL-BL|FR-BR|BL-FL|BR-FR' -c:v copy out.mp4 what I get: Filtergraph 'channelmap=map=FL-BL|FR-BR|BL-FL|BR-FR' was defined for video output stream 0:0 but codec copy was selected. Filtering and streamcopy cannot be used together.  (...)