[FFmpeg-user] [ffmpeg-user] Auto generate Webvtt

Dear Friends, Currently, I am looking for command to create Webvtt for my video by using FFFMPEG. The requirement is creating a webvtt file with preview-thumbnail for using as THEOPlayer (https://support.theoplayer.com/hc/en-us/articles/207460505-Preview-Thumbnails-in-1-X

Re: [FFmpeg-user] Stereo AAC

On Mon, Apr 16, 2018 at 16:02:53 -0400, antony baxter wrote: > I have some video files with a DTS audio stream. I'm trying to add a > couple of additional audio streams into the file, transcoded from the > DTS stream. My command line is: > >ffmpeg > -i "${input}" > -map 0:0 >

Re: [FFmpeg-user] Stereo AAC

Am Dienstag, den 17.04.2018, 04:30 + schrieb Marcin W.: > Because you three times specify -map 0:1. Check stream.mapping. Multiple 'map' parameter are the way to create new output streams from same source streams. > wt., 17 kwi 2018, 05:45 użytkownik antony baxter > napisał: > Please don't t

Re: [FFmpeg-user] Stereo AAC

Am Montag, den 16.04.2018, 16:02 -0400 schrieb antony baxter: > Hi all, > > I have some video files with a DTS audio stream. I'm trying to add a > couple of additional audio streams into the file, transcoded from the > DTS stream. My command line is: > >ffmpeg > -i "${input}" > -m

Re: [FFmpeg-user] ProRes XQ 12-bit support

Sample clip here, this is 6MB. https://drive.google.com/file/d/1hdBmoCgn_M-W-8siZGlEpI1oPNTCgvO_/view?usp=sharing ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or em

Re: [FFmpeg-user] ProRes XQ 12-bit support

Hi On Tue, 17 Apr 2018, 20:13 Elliott Balsley, wrote: > According to the white paper, ProRes files can contain 12-bit RGB video > with an optional 16-bit alpha channel. Is there some way to tell whether > this alpha channel exists? I believe this video clip is 12-bit RGB with a > 16-bit alpha

[FFmpeg-user] ProRes XQ 12-bit support

According to the white paper, ProRes files can contain 12-bit RGB video with an optional 16-bit alpha channel. Is there some way to tell whether this alpha channel exists? I believe this video clip is 12-bit RGB with a 16-bit alpha channel, but I am trying to verify that. Ffprobe calls it yuv4

Re: [FFmpeg-user] Problem with a onvif camera (Up!)

[rtsp @ 0x5629da83b400] line='Accept: OPTIONS, SETUP, PLAY, TEARDOWN' ]rtsp @ 0x5629da83b400]

[FFmpeg-user] Need Help!! WEBVTT & DVBSUB encoding options/metadata

Carl hi, Sorry for the delayed answer, but i was out of office lately.. I have my comments under yours! pls check, cause i did not have any better outcome..Any idea would be great..! >* Thank you for your reply! Actually i made this question several times last *>* month (subject: NEED HELP PLEA

Re: [FFmpeg-user] weird seek behaviour in hls streams

On 4/17/2018 4:07 PM, Daniel Oberhoff wrote: We run a service that extensively relies on hls streams recorded from rtsp capable cameras. We rotuinely generate clips from recorded streams and seem to run into weird behavior of -ss and -t. also it seems the hls stream always has a start-time

[FFmpeg-user] weird seek behaviour in hls streams

Hi all, We run a service that extensively relies on hls streams recorded from rtsp capable cameras. We rotuinely generate clips from recorded streams and seem to run into weird behavior of -ss and -t. also it seems the hls stream always has a start-time of 1.4s. This is not the core problem tho

[FFmpeg-user] Ffmpeg Nvidia GPU mkv encoding output file size

I have been working with below environment. ==>Ubuntu 16.04.3 ==>FFmpeg :3.4.2 -- configuration: --prefix=/usr/local/ffmpeg_new/ --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --