Re: [FFmpeg-user] Help Needed with FFmpeg – Audio Quality Issue in Final Output

> String command = > > '-y -i "$inputVideoPath" -i "$bgMusicPath" ' > '-filter_complex > "[0:a]volume=1.5[a0];[1:a]volume=0.1[a1];[a0][a1]amix=inputs=2:duration=first[aout]" > ' > '-map 0:v -map "[aout]" -c:v copy -c:a aac -b:a 256k -shortest > "$outputPath”'; > > > I want the backgr

Re: [FFmpeg-user] setpts filter produces much smaller files

Hi, look what I found It seems that this problem has deeper roots than a bug in one particular encoder. https://trac.ffmpeg.org/ticket/11126 > Perhaps this was a real bug that has been fixed since 7.1.1 was > released. Do you know where to see release notes that might shed light > on it?

Re: [FFmpeg-user] setpts filter produces much smaller files

) filter is used or not. Obviously it is the bug! German Geraskin ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject

Re: [FFmpeg-user] Audio delay on part of video

"To delay the audio stream" means to insert several audio samples of silence into the audio stream. It is quite easy to do using [setpts filter](https://ffmpeg.org/ffmpeg-all.html#setpts_002c-asetpts). But this works only for the whole audio track. If you need to add delay in the middle of the aud

Re: [FFmpeg-user] How to display web pages to a videowall

The simple answer is YES, but not directly (as far as I know). I use CasparCG with HTML producer and FFmpeg consumer for these purposes. https://github.com/CasparCG/help/wiki/Server чт, 9 янв. 2025 г. в 13:34, Gennaro Esposito : > > Greetings > > My company has a video wall whose decoder is essen

Re: [FFmpeg-user] Multiple outputs advice. Live stream/Record/Preview

ср, 18 сент. 2024 г. в 08:01, Andrew Strachan : > > Just to clarify, you suggest > > source(Decklink) >> ffmpeg>> local streaming server>> file recording, preview > and CDN > > So 1 just x instance of ffmpeg is best, and not using multiple outputs. Correct. Input >> ffmpeg - split input to main

Re: [FFmpeg-user] Multiple outputs advice. Live stream/Record/Preview

вт, 17 сент. 2024 г. в 09:02, Andrew Strachan : > > Hi, > I am looking for advice on how best to achieve multiple outputs for our use > case. > The live source is a Decklink card on Windows. (We have a build working etc) > We want 4 outputs; > > * We want to run a preview window (low quality

Re: [FFmpeg-user] Stream plays with ffplay but doesn't save with ffmpeg

сб, 24 авг. 2024 г. в 02:25, Jesse Campbell via ffmpeg-user : > > Hi, > > I'm trying to figure out why ffplay is working and ffmpeg is not working. > > The stream plays episodes of the same TV show. > > When the episode changes, ffplay plays the next video and ffmpeg freezes. > > Is there a differe

Re: [FFmpeg-user] Unable to play https://dash.akamaized.net/akamai/test/caption_test/ElephantsDream/elephants_dream_480p_heaac5_1_https.mpd with correct timestamp

> > Hi @ffmpeg-user@ffmpeg.org > > Can anyone play below stream using ffmpeg > https://dash.akamaized.net/akamai/test/caption_test/ElephantsDream/elephants_dream_480p_heaac5_1_https.mpd > > When I try to play timestamp is going from 4 to 0 > Yes. It is playable. At l

Re: [FFmpeg-user] Low FPS with H.264 Encoding When Using -pix_fmt yuv420p

> > Hello, > when I use the following command in Raspberry Pi 4 model B, I am getting > only 8 fps for 1080p resolution. > > *ffmpeg -use_wallclock_as_timestamps 1 -t 60 -i /dev/video0 -c:v > h264_v4l2m2m -b:v 8M -maxrate 2M -vsync 2 -bufsize 4M -r 30 -s hd1080 > -pix_fmt yuv420p -g 30 -qmin 20 -qm

Re: [FFmpeg-user] Why my cut video weighs twice as much?

I tried to reproduce the issue, but had no troubles. Perhaps there is something wrong with your INPUT file? пн, 16 окт. 2023 г. в 10:48, Bohort : > > Hello, > No one knows? :( > > Le sam. 14 oct. 2023 à 12:16, Bohort a écrit : > > > Hi there, > > I use version 4.4.2-0ubuntu0.22.04.1. > > I want t

Re: [FFmpeg-user] nvenc error

> Hi I am using ffmpeg 4.3.2 with nvidia 470.42.01 cuda 11.4 but when i > configure it to enable nvenc its always showing nvenc is requested but not > configured what can i do to resolve this? > ./configure --enable-cuvid --enable-nvenc --enable-nonfree --enable-gpl > --enable-cuda --extra-cflags=-

Re: [FFmpeg-user] Lipsync of a UDP stream

> > Dear list, > > > > New ffmpeg user. > > > > I am currently using the following incantation to receive an H.264 stream: > > > > ffmpeg -hide_banner -nostats -loglevel panic -async 1 -i > > udp://192.168.1.60:17001 -vcodec copy -codec:a aac -b:a 128k -f mpegts > > pipe:1 > > > > The media server

Re: [FFmpeg-user] Mathematical Art

Wow! Awesome! сб, 28 янв. 2023 г. в 13:08, Michael Koch : > > Hello all, > > this is not a question. This cool equation was designed by Hamid Naderi > Yeganeh. I did only translate it into a FFmpeg command. Let it run and > see what comes out. > > ffmpeg -f lavfi -i color=black:s=hd1080,format=gra

Re: [FFmpeg-user] Generating HLS chunks on demand

Hi Vincent, I have read your very first message and realized what you are going to achieve as a final result. So, my advice is the following: 1. Produce a full set of HLS segments for your source file and save them in some folder that is not accessible to your users (archive). 2. When the user re

Re: [FFmpeg-user] Generating HLS chunks on demand

Hi Vincent, Do not use -ss and -t parameters simultaneously. FFmpeg cannot form an output container well in that case. If you just need to create HLS segments from some source file you can use the "segment" muxer. ffmpeg -i source.mp4 -vcodec copy -acodec copy -f ssegment -segment_list chunklist