Re: [FFmpeg-user] Timestamp and missing frame when converting 4K h.264 to h.265

2018-04-18 Thread Gralfus
The thought occurred to me today that with the h265 codec, I may need a more modern computer for doing the processing and viewing. Mine is about 11 years old, so I'm going to do more experimenting with more modern hardware to see if that is perhaps behind the artifacts I'm seeing. I'll get back to

[FFmpeg-user] Live streaming with dynamic overlay

2018-04-18 Thread Nam Giang
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 u

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

2018-04-18 Thread Reino Wijnsma
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 the attached 'ffmpeg

[FFmpeg-user] HLS Questions

2018-04-18 Thread Ronak
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" -codec

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

2018-04-18 Thread Denis
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 i

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

2018-04-18 Thread David Di Biase
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 d

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

2018-04-18 Thread Carl Eugen Hoyos
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 supported. Please try to fix your

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

2018-04-18 Thread Gonzalo Garramuño
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 tar

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

2018-04-18 Thread Carl Eugen Hoyos
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 tracking down the issue and

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

2018-04-18 Thread Carl Eugen Hoyos
2018-04-18 18:10 GMT+02:00, Elliott Balsley : > >> 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 cou

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

2018-04-18 Thread Elliott Balsley
> 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 bu

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

2018-04-18 Thread Paul B Mahol
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 > http://ffmpeg.org/mailman/listinfo/ffmpeg

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

2018-04-18 Thread Gyan Doshi
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 offs

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

2018-04-18 Thread Daniel Oberhoff
> 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 weird behavior of

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

2018-04-18 Thread Daniel Oberhoff
> 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 weird behavior of

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

2018-04-18 Thread Daniel Oberhoff
> 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 weird behavior of -ss a

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

2018-04-18 Thread Daniel Oberhoff
> 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 weird behavior of

Re: [FFmpeg-user] Stereo AAC

2018-04-18 Thread Moritz Barsnick
On Tue, Apr 17, 2018 at 22:24:12 +0200, Frank Haefemeier wrote: > Am Montag, den 16.04.2018, 16:02 -0400 schrieb antony baxter: > > I have some video files with a DTS audio stream. I'm trying to add a > If you not specifiy the right mapping index by 'ac' parameter it will > default to zero. Sorr