[FFmpeg-user] Live streaming with dynamic overlay

Hi there, I'm using ffmpeg to live stream to Youtube. I'm wondering if I can do dynamic overlay. For example, when my stream is live and the world is watching, at some points I want to pop up some pictures or add some sound effects to my live stream. I wonder if there is any command that I can

Re: [FFmpeg-user] Reporting GCC 7.3.0 compiler-warnings on FFmpeg git (955fa23)

On 15-4-2018 15:16, Reino Wijnsma wrote: > Hello ffmpeg-user(/devel), > > I've just compiled a fresh build from git (955fa23) (on Windows using Cygwin, > MinGW and GCC). > It compiled without errors, but I did get quite some warnings! I thought I'd > share it with you. > See

[FFmpeg-user] HLS Questions

Hi there, I'm using ffmpeg to generate MPEG DASH & HLS content using a backing fragmented MP4 asset, and I've noticed some inconsistencies with ffmpeg that I wasn't sure about. For reference, I'm running the following commands: Generate a fMP4 backed HLS stream: ffmpeg -i "${FILE}.mp4"

Re: [FFmpeg-user] Problem with ffmpeg and an onvif camera

Perfect. Using vlc with a Debian 9 machine I can watch an onvif video camera. Using the latest ffmpeg from git I can't watch the same video camera. To test the video camera with ffmpeg I'm using this command line: ./ffmpeg -loglevel 99 -i rtsp://admin:admin@172.30.153.33:554/1 a.avi The output

Re: [FFmpeg-user] Compiling ffmpeg with an output device (Blackmagick Decklink)

Thanks I got it resolved. It was my command line and how I was inserting link breaks in it. Even after I got passed all that it’s not working as expected, throws multiple errors. I’ve had to move onto other solutions as this is not operating as expected. In regards to the comment about the legal

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

2018-04-17 14:10 GMT+02:00, Eleftherios Antoniades : > is there a way to add subtitles as teletext on a TS input video, > to create a TS output video with Teletext and page number? FFmpeg does not contain a Teletext encoder and I am not sure if muxing Teletext is

Re: [FFmpeg-user] Compiling ffmpeg with an output device (Blackmagick Decklink)

El 18/04/2018 a las 14:40, Carl Eugen Hoyos escribió: *ffbuild/config.mak:6: *** missing separator. Stop.* I attempted tracking down the issue and found this ticket on the ffmpeg tracker: https://trac.ffmpeg.org/ticket/1209. I'm not using the git pull, instead I'm just unpacking the source

Re: [FFmpeg-user] Compiling ffmpeg with an output device (Blackmagick Decklink)

2018-04-18 0:10 GMT+02:00, David Di Biase : > Carl, my apologies for not including config.log. I've attached a copy here. Which only makes sense as long as you have trouble with configure... [...] > *ffbuild/config.mak:6: *** missing separator. Stop.* > > I attempted

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

> You sure this displays alpha when reopened in exporter? > > It can just mark that source format had alpha. > __ No I'm not, in fact I don't expect there to be an alpha channel here. I only think that because Resolve detects it as 16-bit. It could be a

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

On 4/17/18, Elliott Balsley wrote: > 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 >

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

On 4/18/2018 3:19 PM, Daniel Oberhoff wrote: Ok, i investigated some further. The source of the problem seem to be the start offsets that are “weird” around hls. For one all our hls recordings report a start offset of 1.4s, and we have no idea where that is from (the source has no such

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

> On 17. Apr 2018, at 12:43, Gyan Doshi wrote: > > > > 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

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

> On 17. Apr 2018, at 12:43, Gyan Doshi wrote: > > > > 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

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

> On 17. Apr 2018, at 12:43, Gyan Doshi wrote: > > 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

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

> On 17. Apr 2018, at 12:43, Gyan Doshi wrote: > > > > 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