Re: [FFmpeg-user] create live stream from static files

On 5/31/2018 4:34 PM, Anthony Ettinger wrote: I believe obs uses ffmpeg under the hood. I'm looking into building a custom solution for a web site I work on. I'd like to use ffmpeg if that's possible. You're probably better off writing some scripts to feed whatever filenames you want into

Re: [FFmpeg-user] Is this the best method to keep audio quality when converting lossy audio to another lossy audio?

On 1-6-2018 14:11, Farhad Mohammadi Majd wrote: >> On the other hand, if you compiled FFmpeg with libopus, then you >> don't need 'opusenc' at all. > Does ffmpeg has the same output quality of opusenc? They're both a wrapper for libopus if you will, so yes. -- Reino

Re: [FFmpeg-user] Tag mp4s incompatible with output codec ?

Thanks a lot for your response. >> Could that have any negative side effects when I try to convert some other >> movies? > > It depends. If video editing was simple, it wouldn't require complex > tools. ;-) > > In your case, my guess is that ffmpeg is unable to mux all the data > streams. If

Re: [FFmpeg-user] what's print() used to do in filter graph?

On 01-06-2018 08:10 PM, qw wrote: I don't find the description of print() in the vf filtergraph in ffmpeg website, i.e. http://ffmpeg.org/ffmpeg-filters.html#drawtext-1 print() function is part of the eval API. All available functions are documented at

[FFmpeg-user] what's print() used to do in filter graph?

Hi, I use the filter of drawtext to put some text on video images. And I want to know the text width and height. I searched internet via google, and found one link that shows how to print text width and height

Re: [FFmpeg-user] Is this the best method to keep audio quality when converting lossy audio to another lossy audio?

at  Fri Jun 1 14:03:58 EEST 2018, Reino Wijnsma (rwijnsma at xs4all.nl) wrote: > so instead of converting the mp3 files to flac, you can also pipe the > decoded mp3 audio from 'ffmpeg' to 'opusenc' By this method all the metadata will be lost!! > On the other hand, if you compiled FFmpeg with

Re: [FFmpeg-user] Tag mp4s incompatible with output codec ?

On Fri, Jun 01, 2018 at 11:19:17 +0200, Gabriel Zachmann wrote: > > In your case, my guess is that ffmpeg is unable to mux all the data > > streams. If you use "map 0 -sn", ffmpeg should omit them. > > I have just checked; IIUC, -sn would omit the subtitles in the output - is > that correct?

Re: [FFmpeg-user] Is this the best method to keep audio quality when converting lossy audio to another lossy audio?

Hello Farhad, On 1-6-2018 10:37, Farhad Mohammadi Majd wrote: > Hello, I have a large collection of audio files contains music in mp3 > format, due to need to free space of hard disk, I need to reduce their > size. > > It seems opus is the best format for this purpose, in order to have the >

[FFmpeg-user] 答复: 答复: Can someone point me to a libavformat file

Try this: ffmpeg -f rtp -i inRtpVideo -c:v libx264 -f h264 stream1.h264 But, I am not ensure that is correct. 发件人: ffmpeg-user 代表 Robert Clove 发送时间: 2018年6月1日 2:54 收件人: FFmpeg user questions 主题: Re: [FFmpeg-user] 答复: Can someone point me to a libavformat file

Re: [FFmpeg-user] 答复: Can someone point me to a libavformat file

Meng, Thanks for the detailed reply. I have one more question for you, i have dump of decrypted rtp(video) packets, i want to generate the .h264 from that. I know we cannot directly give the file to ffmpeg, any idea on what all needs to be done for the same ? Regards On Fri, Jun 1, 2018 at

Re: [FFmpeg-user] Tag mp4s incompatible with output codec ?

Thanks a lot for your response. >> Could that have any negative side effects when I try to convert some other >> movies? > > It depends. If video editing was simple, it wouldn't require complex > tools. ;-) > > In your case, my guess is that ffmpeg is unable to mux all the data > streams. If

[FFmpeg-user] Is this the best method to keep audio quality when converting lossy audio to another lossy audio?

Hello, I have a large collection of audio files contains music in mp3 format, due to need to free space of hard disk, I need to reduce their size. It seems opus is the best format for this purpose, in order to have the quality of original mp3 files, currently I use ffmpeg command to convert them

[FFmpeg-user] 答复: Can someone point me to a libavformat file

run : ffmpeg -i flame.avi ,then the output is: ffmpeg version 2.8.14-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609 configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg

Re: [FFmpeg-user] Can someone point me to a libavformat file

Thanks for the reply. i downloaded the avi file from here engr.colostate.edu/me/facil/dynamics/avis.htm and did this ffmpeg.exe -i flame.avi -an -vcodec copy stream1.h264, i am getting error on this. On Fri, Jun 1, 2018 at 1:26 PM, Moritz

Re: [FFmpeg-user] Can someone point me to a libavformat file

On Fri, Jun 01, 2018 at 11:33:26 +0530, Robert Clove wrote: > Can someone point me to a libavformat file for which i can use the What is a libavformat file? You probably mean an AVI file? > following command ffmpeg -i abc.avi -an -vcodec copy stream.264 Provided your ffmpeg supports H.264

Re: [FFmpeg-user] Can someone point me to a libavformat file

Can someone point me to a libavformat file for which i can use the following command ffmpeg -i abc.avi -an -vcodec copy stream.264 On Fri, Jun 1, 2018 at 10:55 AM, Robert Clove wrote: > Hi, > > Can someone point me to a libavformat file > > OR > > I have a decrypted PCAP file, how can i stream