[FFmpeg-user] Position of Images and Audio in a Video File

Greetings, I have wondered how the Images and the Audio is placed in a Video File We speak of them as Tracks but I am trying to learn how it is placed binarily one after the other. It is after all just a binary list of numbers or codes. I download files which are in dash format from Youtube usin

[FFmpeg-user] Multiplexing

Greetings, I am streaming out 16 television channels via optical fiber to an IPTV system This is done very simply by Initially using ffmpeg to compress the files to the required format They are prepared with a playlist that gives the order of streaming. Then using ffmpeg to stream the channels vi

Re: [FFmpeg-user] Position of Images and Audio in a Video File

Greetings Stefan, Thank you for the links. They are very useful. Mettavihari On Sun, May 23, 2021 at 6:34 PM Stefan de Konink wrote: > > Hi, > > Due to playout requirements (sequential access) it is typically made > available as interleaved blocks. But it can also be completely independent > tr

[FFmpeg-user] Streaming Syntax error

Greetings I run a server that is streaming out to a website on the Net I use the following command which is working. /root/bin/ffmpeg -re -i /data/video/sinhala/innput-15m.mp4 -acodec copy -vcodec copy -f flv -metadata streamName=xlarge rtmp://some.site.com. My client is complaining that the bit

Re: [FFmpeg-user] Streaming Syntax error

Greetings Thank you for the note What do you suggest that I put in this line If I can have the syntax to use then I can adjust the values. Regards Mettavihari On Wed, Jun 28, 2017 at 7:17 AM, Reuben Martin wrote: > On Tuesday, June 27, 2017 7:09:46 PM CDT Mettavihari D wrote: >> I

Re: [FFmpeg-user] Streaming Syntax error

Greetings On Wed, Jun 28, 2017 at 3:56 PM, Mettavihari D wrote: > Greetings > > Thank you for the note > What do you suggest that I put in this line > If I can have the syntax to use then I can adjust the values. > > Regards > Mettavihari > > On Wed, Jun 28,

Re: [FFmpeg-user] Streaming Syntax error

to use then I can adjust the values. >> >> On Wed, Jun 28, 2017 at 7:17 AM, Reuben Martin wrote: >>> On Tuesday, June 27, 2017 7:09:46 PM CDT Mettavihari D wrote: >>>> I tried the following: >>>> /root/bin/ffmpeg -re -i /data/video/sinhala/innput-15

Re: [FFmpeg-user] Streaming Syntax error

Greetings Thank you for the mail. On Mon, Jul 24, 2017 at 2:46 PM, Moritz Barsnick wrote: > On Mon, Jul 24, 2017 at 09:30:38 +0530, Mettavihari D wrote: >> when I run this on the command line it is working. > [...] >> When I run this in a script I get errors. > &g

Re: [FFmpeg-user] Streaming Syntax error

Greetings Thank you for your interpretation. It looks you are spot on. > We need to see the proper *actual* command line used (minus your hidden > output URL). You can add "-loglevel debug", that will (among others) > display ffmpeg's option parsing. But the easiest way is to add the > option "-r

Re: [FFmpeg-user] Streaming Syntax error

Greetings, Thank you for the suggestion. >> Reading option '-b:a 128k' ... matched as option 'b' (video bitrate >> (please use -b:v)) with argument '-vcodec'. >> Reading option 'libx264' ... matched as output url. > Remove the quotes surrounding the whole of -b:a 128k and quote them > separately

Re: [FFmpeg-user] Streaming Syntax error

Greetings Thank you for the note. >> Reading option 'b:a' ... matched as output url. >> Reading option '128k' ... matched as output url. >> > > The dash before b:a is missing. That is so certainly an error. However this did not work either There is something I do wrong in this command line Plea

Re: [FFmpeg-user] Streaming Syntax error

Greetings Thank you for having such sharp eyes. > The space between 128k and -vcodec is now omitted. Please proof your > commands for these trivial issues before trying. That cleared the present problem. Now it is working with this command. but is seems the two -b commands are not implemented. p

Re: [FFmpeg-user] Streaming Syntax error

Greetings Gyan and Moritz Thank you for teaching me all this I think it should be working now. I have put in the report below regards Mettavihari fmpeg started on 2017-07-25 at 15:29:01 Report written to "ffmpeg-20170725-152901.log" Command line: /root/bin/ffmpeg -i /media/data/video/yupptv/sutt

Re: [FFmpeg-user] [hw] strange stream behaviour

Greetings I note you did not have a reply to this long and exhaustive mail if you have solved it I would be happy to know the solution If not try to put -report into the command line. ffmpeg -n -loglevel 8 -report -i http://example.com/foo.m3u8 -codec copy -t 00:10:00 -f mpegts example and pos

Re: [FFmpeg-user] FFmpeg output problems !!!

Greetings If you used yum to install then you must be having an Old OS You may have to think about upgrading the OS regards Mettavihari On Sun, Jul 24, 2016 at 4:10 PM, Walid Salman wrote: > How i get the last full ffmpeg : > In linux i used the command line : > Yum install ffmpeg > Any bodud

[FFmpeg-user] ffmpeg version 2.4

Greetings I always use my own compiled version of ffmpeg, and try to keep my ffmpeg up to-date This time however I have been asked to downgrade the ffmpeg version should be 2.4. to work with a certain software. How do I down load the Version 2.4 of ffmpeg ? or could I find a compiled version of 2

Re: [FFmpeg-user] ffmpeg version 2.4

Greetings Thank you for the link regards Mettavihari On Thu, Aug 4, 2016 at 11:08 PM, Reindl Harald wrote: > > Am 04.08.2016 um 19:30 schrieb Mettavihari D: > >> Greetings >> >> I always use my own compiled version of ffmpeg, and try to keep my ffmpeg >> up to

[FFmpeg-user] Video Standards for the Net

We have recently installed clipbucket as a video site I find that the compression they use is as below. My question is whether those standards are good or they should be increased in quality. best regards Mettavihari # 1080 ffmpeg conversion ffmpeg -i $fl -f mp4 -vcodec libx264 -preset medium -r

Re: [FFmpeg-user] Video Standards for the Net

Greetings, Thank you for your notes. On Mon, Aug 29, 2016 at 9:01 AM, Reuben Martin wrote: > On Monday, August 29, 2016 5:40:41 AM CDT Mettavihari D wrote: > > We have recently installed clipbucket as a video site > > I find that the compression they use is as below. > > M

[FFmpeg-user] OTT Playout server

Greetings List Member. I have a small job if there is someone who can take it on. It is a paid job and can be done off hours. I have a server with a number of Video files. I have several playlists which I need to multicast as a udp rtp streams The system must be duplicate-able I will be streamin

[FFmpeg-user] Enhancing filters

Greetings I have some low resolution videos which I like to enhance the quality of. I have found the following filters to be useful. unsharp and smartblur. I would like to have some other ideas on how to sharpen and enhance video files. With metta Mettavihari __

Re: [FFmpeg-user] Enhancing filters

Greetings Thank you for the tips. This will give me a few days of reading to do. Thank you Mettavihari On Mon, 20 Aug 2018, 18:28 Francois Visagie, wrote: > > -Original Message- > > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > > Mettavih

Re: [FFmpeg-user] Enhancing filters

Greetings >> I have some low resolution videos which I like to enhance the quality of. >> I have found the following filters to be useful. >> unsharp and smartblur. >> I would like to have some other ideas on how to sharpen and enhance video >> files. > You don't say what quality problems you wa

[FFmpeg-user] Stream to a specific lancard

Greetings My os is Debian I have 2 lan cards which I want to stream 2 streams to. This is my commands. ffmpeg -re -i file2.ts -c:v copy -c:a copy -muxrate 2000k -f mpegts udp:// 224.x.x.x:port 1 ffmpeg -re -i file1.ts -c:v copy -c:a copy -muxrate 2

Re: [FFmpeg-user] Streaming overseas

On Sat, 3 Nov 2018, 21:36 Nikhil Yadav Pro-mpeg or any protocol will not serve you for cross continent serving due > to so many hops or routing. > > Cheapest will be to serve HLS through CDN. > I would imagine that udp would be the best. A dropped frame here and there would not be noticed. Metta

[FFmpeg-user] filter_complex

Greetings I need a bit of help to understand how to use filter_complex I have a video file where I need to insert a logo in the video file. I have been suggested the following command ffmpeg -y -threads 16 -i $FILE1.mp4 -i vidasa11.png -filter_complex [1:v]scale=100:-1[logo]; "[0:v]scale=720:576

[FFmpeg-user] filter_complex

Greetings I need a bit of help to understand how to use filter_complex I have a video file where I need to insert a logo in the video file. I have been suggested the following command ffmpeg -y -threads 16 -i $FILE1.mp4 -i vidasa11.png -filter_complex [1:v]scale=100:-1[logo]; "[0:v]scale=720:576

Re: [FFmpeg-user] filter_complex

Greetings Joel -or alternately paste this into the terminal: ffmpeg -y -threads 16 -i $FILE1.mp4 -i vidasa11.png -filter_complex \ [1:v]scale=100:-1[logo]; "[0:v]scale=720:576[vid];" \ [vid][logo]overlay=590:40[out] -map [out] -map 0:a -preset slower \ -profile:v main -level 3.1 -c:v libx264

Re: [FFmpeg-user] filter_complex

:a 128k -nal-hrd cbr -muxrate 1900k -f mpegts output-10.ts &> output-10.log & On 11/15/18, Mettavihari D wrote: > Greetings Joel > > > -or alternately paste this into the terminal: > > ffmpeg -y -threads 16 -i $FILE1.mp4 -i vidasa11.png -filter_complex \ > [1:v]

Re: [FFmpeg-user] filter_complex

Thank you -:) On Thu, 15 Nov 2018, 17:02 DopeLabs fyi... > > - is a hyphen > > ' single quote > " double quote > > cheers =] > > > > On Nov 15, 2018, at 1:20 27AM, Mettavihari D wrote: > > > > Greetings all, > > > > The Problem