Re: [FFmpeg-devel] Captions SCC

2025-02-09 Thread Devlist Archive
I believe I have sorted out the embed/extract issues I encountered into a formatting issue with the .scc file and lack of eia-608 codec for embedding captions. It is possible this might be a result of an oversight regarding drop frame or non drop frame time codes with some part of the chain that h

Re: [FFmpeg-devel] Captions SCC

2025-02-09 Thread Devlist Archive
> > Not to start an argument, but WebVTT is kind of a terrible format. > It's a lowest common denominator and loses most formatting information > available even in 608 (which is now more than 40 years old). Stuff > like rollup captions for live programming, color (to distinguish > speakers) and ca

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
; -Original Message----- > > From: ffmpeg-devel On Behalf Of > > Devlist Archive > > Sent: Friday, February 7, 2025 9:50 PM > > To: FFmpeg development discussions and patches > de...@ffmpeg.org> > > Subject: Re: [FFmpeg-devel] Captions SCC > > > &g

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
> devel-boun...@ffmpeg.org <mailto:devel-boun...@ffmpeg.org> ffmpeg-devel-boun...@ffmpeg.org <mailto:ffmpeg-devel-boun...@ffmpeg.org>> > on > > behalf of softworkz-at-hotmail@ffmpeg.org softworkz-at-hotmail@ffmpeg.org> <mailto:softworkz-at- > > hot

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
ftworkz-at-hotmail@ffmpeg.org> wrote: > > -Original Message- > > From: ffmpeg-devel On Behalf Of > > Devlist Archive > > Sent: Friday, February 7, 2025 8:52 PM > > To: FFmpeg development discussions and patches > de...@ffmpeg.org> > > Subject:

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
knows they > are working with the exact same files. Sorry, I updated it with some other examples, I am uploading the original ones again now. On Fri, Feb 7, 2025 at 11:52 AM Devin Heitmueller < devin.heitmuel...@ltnglobal.com> wrote: > On Fri, Feb 7, 2025 at 2:31 PM Devlist Archiv

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
age----- > > From: ffmpeg-devel On Behalf Of > > Devlist Archive > > Sent: Friday, February 7, 2025 8:31 PM > > To: FFmpeg development discussions and patches > de...@ffmpeg.org> > > Subject: Re: [FFmpeg-devel] Captions SCC > > > > > > > >

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
On Fri, Feb 7, 2025 at 11:03 AM Devin Heitmueller < devin.heitmuel...@ltnglobal.com> wrote: > On Fri, Feb 7, 2025 at 1:32 PM Devlist Archive wrote: > > That is good to hear, FYI any time 708 captions present in a DTVCC video > > stream there also must be 608 captions wrapped in that s

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
automatically and not need special filter commands to preserve them. The captions I work with are basically user data captions but in an mp4 file according to SCTE 128 / DTVCC Transport. Zach On Fri, Feb 7, 2025 at 10:05 AM Devin Heitmueller < devin.heitmuel...@ltnglobal.com> wrote: >

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
My application is actually to generate a playout library for over the air TV, then implement a captions data path into a sub project that relies on ffmpeg for decode/encode. So I need to not just do archival, but build a library in a usable format. This requires an ingest process for both an edi

Re: [FFmpeg-devel] Captions SCC

2025-02-07 Thread Devlist Archive
an be generated and submitted? Zach On Fri, Feb 7, 2025 at 7:39 AM Marth64 wrote: > Hi folks > > Zach (Devlist Archive): > Thanks for sharing your experience and I hope a resolution comes out > of it. I encourage you to write this email instead to the ffmpeg-user > list (or

Re: [FFmpeg-devel] Captions SCC

2025-02-06 Thread Devlist Archive
Hi Jack, Thanks for the suggestions. Could you please tell me where I can get a build of ffmpeg that will work with the -c:s scc command? That encoder doesn't seem to be in the release version I am working with. It is slightly unclear to me how your suggestion for the extract command suggestion

[FFmpeg-devel] Captions SCC

2025-02-06 Thread Devlist Archive
Greetings, I have been absent from the list for a few years, so I would appreciate it if someone could catch me up a bit. I am needing to extract and embed scc files with 608 captions. I am pleased to see that transcoding without frame rate changes now preserves 608 intact, and there appear to b