[FFmpeg-user] video concat without reencoding keeps audio in one order but not the other

So I took a video and cut it two ways, one with reencoding and one without reencoding, call them R and C (cut). Im trying to do concatenation without reencoding, and I'm able to concat the video in all orders , , , , but the sound disappears for and I have no idea why. I know I can concatenate wi

[FFmpeg-user] Can be done with FFMPEG?

Hello I have used the FFMPEG and “manually” Works perfect, but I don’t know if can be done from a CSV get some info to process some tasks: 1 Insert a JPG frontend (allways the same) 2 Create a Blank page with a border and include text (Different size and formats, Title, Subtitle, etc.) 3 Insert

Re: [FFmpeg-user] Credit Notes (bulk creation)

> Enviado: miércoles, 28 de abril de 2021 21:20 Para: ffmpeg-user@ffmpeg.org<mailto:ffmpeg-user@ffmpeg.org> Asunto: Re: [FFmpeg-user] Credit Notes (bulk creation) On 4/28/2021 9:26 AM, Adrian Perello Marin wrote: > Is it possible to do this by command line so that it reads the conten

[FFmpeg-user] Credit Notes (bulk creation)

Hi, I am not sure if with this tool I can do the following: I receive about 100 videos, with a CSV file containing the credits of the video; and I have to convert the text in each of the videos to play at the beginning or at the end of the video. Is it possible to do this by command line so that

Re: [FFmpeg-user] How to dynamically drop frames as required to keep transcoding real time?

but couldn’t find anything quite applicable. I do appreciate you taking the time to understand my issue! Hopefully someone who has direct experience of how to achieve this will read this as a result and be able to help. -Adrian From: ffmpeg-user on behalf of Mark Filipak (ffmpeg) Date

Re: [FFmpeg-user] How to dynamically drop frames as required to keep transcoding real time?

ge to produce 6 fps, right now it won’t drop frames, and as a result won’t keep up with the input. I want to make it drop frames if needed so it keeps up with the input. -Adrian From: ffmpeg-user on behalf of Mark Filipak (ffmpeg) Date: Wednesday, April 7, 2021 at 2:49 PM To: ffmpeg-user@ffmp

Re: [FFmpeg-user] How to dynamically drop frames as required to keep transcoding real time?

be independent of the input frame rate, because decoding the input frames consumes CPU and memory bandwidth, which leaves less available for the re-encoding part. If the input frame rate is 60 fps, for example, XXX will be lower than if the input frame rate were 5 fps. -Adrian From: ffmpeg

[FFmpeg-user] How to dynamically drop frames as required to keep transcoding real time?

would imagine it would be quite important in all sorts of streaming applications where unlimited transcoding power is not guaranteed to be available. Can anyone help? -Adrian ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org

Re: [FFmpeg-user] Can't write packet with unknown timestamp

They answered your question,  It is time to let it go. ___ 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 "unsubscrib

Re: [FFmpeg-user] Playback of mp4 file created by concatenating 9 mp4 files

On September 13, 2019 1:46:41 PM EDT, JD wrote: >The resulting movie will not play. >To wit: >$ ffplay Cremation_History.mp4 >ffplay version 3.4.6 Copyright (c) 2003-2019 the FFmpeg developers >   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36) >   configuration: --prefix=/usr --bindir=/usr

Re: [FFmpeg-user] Exactly one WebVTT stream is needed

I was going to tell you that your formats were all wrong, and that you needed h264 and aac but I checked and hls has no limit on formats. However, just because you can, doesn't mean you should, hls implies h264 video, aac audio and 608 or webvtt captions. May I ask why you would do it your way?

Re: [FFmpeg-user] re-wrap BluRay M2TS as MP4

ffmpeg -i m2.ts -c copy out.mp4 On 11/06/15 11:29, John Pilgrim wrote: Hi all, What would the correct ffmpeg invocation be to re-wrap an h264 M2TS file (from a non-commercial BluRay disc) into an MP4 file **without** recompressing the h264 data? Similarly, what would the correct ffmpeg invocat

[FFmpeg-user] hls with subtitles vtt.m3u8 missing last segment and #EXT-X-ENLIST

feedback y'all can provide. Adrian a@cloudy:~/test# ffmpeg -i vid.mp4 -i sub.vtt -c copy -bsf:v h264_mp4toannexb out.m3u8 ffmpeg version N-76474-g973c3db Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.2.1 (Debian 5.2.1-22) 20151010 configuration: --enable-shared --e

Re: [FFmpeg-user] Multicast to HLS, step by step

It's my understanding that hls uses the http protocol, probably best to drop the multicast udp, and install a webserver. ffmpeg -i vid.mp4 output.m3u8 will segment the mp4 and even write you a m3u8 file. I usually set the list size to 0, so that I can have all my segments in the one m3u8,I am

[FFmpeg-user] ffserver crashes while retrieving a stream with missing feed

e the crash the server had indicated AVIOContext statistics , I'm not sure if thats related. How can I avoid this crash? Regards Adrian HTTPPort 8090 RTSPPort 9990 BindAddress 0.0.0.0 MaxClients 1000 MaxBandwidth 3 CustomLog /var/log/ffserver.log File /tmp/feed1.ffm FileMaxSize 100K

Re: [FFmpeg-user] delay problems when using ffserver, ffmpeg for streaming of web cam and vlc for viewing.

I forgot to mention, that over Ethernet there is still a ~2 sec delay? On Thu, Apr 30, 2015 at 9:00 AM, Adrian Schwartz wrote: > Hi Roger > When I changed the network interface from wireless to Ethernet, I stopped > seeing the past duration to large error. > I do see dup=[number] at

Re: [FFmpeg-user] delay problems when using ffserver, ffmpeg for streaming of web cam and vlc for viewing.

ing to file? > > On 4/29/15, Adrian Schwartz wrote: > > hello ffmpeg user group, > > I'm having delay problem ( when using ffserver and ffmpeg) > > I'm getting the error "ffmpeg past duration too large" when using the > > ffmpeg for streaming. >

[FFmpeg-user] delay problems when using ffserver, ffmpeg for streaming of web cam and vlc for viewing.

it shows 2 sec delay, when the communication interface delay is aroung 15 msec. Is there some recommendation on how to lower the delay? Regards Adrian # #Streaming command: # ffmpeg -f dshow -rtbufsize 1M -i video="Logitech Webca"":audio="Microphone (2- Webcam C160)&

Re: [FFmpeg-user] dvd2concat error with loopback mounted ISO

nown keyword 'stream' file.concat: Invalid data found when processing input Le tridi 13 frimaire, an CCXXIII, Adrian Meyer a écrit : > The "real" output: > lsdvd iso -Op -x 2>/dev/null > > our %lsdvd = ( >   %s => device'iso', >   %s => title

Re: [FFmpeg-user] dvd2concat error with loopback mounted ISO

> [     {   %s => ix1,   %s => langcode'en',   %s => language'English',   %s => format'ac3',   %s => frequency48000,   %s => quantization'drc',   %s => channels6,   %s

[FFmpeg-user] dvd2concat error with loopback mounted ISO

I am mounting an ISO through loopback and I get 5 messages from libdvdread through lsdvd and 1 from perl crashing on the eval: libdvdread: Attempting to use device /dev/loop0 mounted on /media/raid/Video/divx/iso for CSS authentication libdvdread: No VTS_TMAPT available - skipping. libdvdread: No

[FFmpeg-user] AV Foundation screen capture FPS

I’ve had no success trying to screen record past 15 FPS. Here’s my thread with the details: http://ffmpeg.gusari.org/viewtopic.php?f=11&t=1783 I’d greatly appreciate any help with this, thanks. ___