Re: [FFmpeg-user] Overlay fails in the middle of the video

2017-11-12 Thread Moritz Barsnick
On Sun, Nov 12, 2017 at 19:30:09 +0100, Michael Koch wrote: > The video looks good in the first 4 or 5 seconds, but then the > overlay disappears and doesn't come back until the end of the video. In addition to what Carl Eugen asked: > frame=   43 fps=3.7 q=2.0 size=   19200kB time=00:00:04.20

Re: [FFmpeg-user] Overlay fails in the middle of the video

2017-11-12 Thread Carl Eugen Hoyos
2017-11-12 19:30 GMT+01:00 Michael Koch : > I'm trying to make a timelapse video from 145 images Can you reproduce the issue if you recreate the 145 jpg images with ffmpeg using testsrc2? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org h

[FFmpeg-user] Overlay fails in the middle of the video

2017-11-12 Thread Michael Koch
Hi all, I'm trying to make a timelapse video from 145 images, which must first be cropped to quadratic size and then a circular mask must be overlaid. The overlay comes from a PNG image (black border with transparent circle). The video looks good in the first 4 or 5 seconds, but then the over

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Erik Dobberkau
> > My laptop only has USB 3, and 3.1 gen 2 ports. My SSD is in a drive bay > connected to the USB 3.1 gen 2 port, and the reader unit is capable of > 10Gbps connections. > Have you tried using TeraCopy for a comparison? ___ ffmpeg-user mailing list ffmp

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Kevin Duffey
Are you sure you are using a USB 3 port? My laptop has both USB 2 and USB 3 ports. I use the USB 2 ports for things that aren't as speed sensitive like the dongle for my wireless mouse/keyboard and the USB 3 ports to connect external drives and phones for file transfer. Perhaps you are plugged

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Ron Sparks
On 11/12/2017 12:17 PM, Kevin Duffey wrote: So this strikes me as one problem. USB 3 is 5Gb/s. Or about 500MB/s. As one of the drives is an SSD.. this seems ridiculous to me that it is basically moving at USB2 speeds. At the very least, as it is over a USB 3.1 gen 2, 10Gb/s wire... it shou

Re: [FFmpeg-user] Qt audio tracks muted

2017-11-12 Thread Carl Eugen Hoyos
2017-11-12 18:35 GMT+01:00 Bouke / VideoToolShed : > On 12 Nov 2017, at 16:54, Carl Eugen Hoyos wrote: >> >> 2017-11-12 16:52 GMT+01:00 Bouke / VideoToolShed : >>> When outputting QT with multiple audio tracks, on the first one is flagged >>> as active. >>> Now I found this documented, and ‘shoul

Re: [FFmpeg-user] Splitting DTS-X from MA/Core

2017-11-12 Thread Paul B Mahol
On 11/10/17, Paul B Mahol wrote: > On 11/10/17, Simon Strudwick wrote: >> Is it possible to remove the X component from a DTS stream, leaving only >> the MA/Core tracks? Or is there even any point in doing this? > > Currently it is not possible to remove X part. But if you wish such feature is a

Re: [FFmpeg-user] Qt audio tracks muted

2017-11-12 Thread Bouke / VideoToolShed
> On 12 Nov 2017, at 16:54, Carl Eugen Hoyos wrote: > > 2017-11-12 16:52 GMT+01:00 Bouke / VideoToolShed : >> When outputting QT with multiple audio tracks, on the first one is flagged >> as active. >> Now I found this documented, and ‘should’ be fixed, but it’s still the case. > > The incon

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Kevin Duffey
back then you have been asked if you had turned off all security monitoring for the target folder, such as Windows Defender, to which you haven't replied. ffmpeg is per se not a signed application, which could make utilities like such suspect there is something happening they should keep trackin

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Kevin Duffey
You may get further advice on this-  top-posting questions tend to draw people (like me) out of the woodwork. OK.. this is my attempt at bottom posting.  I am using yahoo email.. the latest version i guess it is on. When i reply, I am at the top, and I now see the original message collapsed.

Re: [FFmpeg-user] Qt audio tracks muted

2017-11-12 Thread Carl Eugen Hoyos
2017-11-12 16:52 GMT+01:00 Bouke / VideoToolShed : > When outputting QT with multiple audio tracks, on the first one is flagged as > active. > Now I found this documented, and ‘should’ be fixed, but it’s still the case. The inconsistency is a known regression. Carl Eugen

[FFmpeg-user] Qt audio tracks muted

2017-11-12 Thread Bouke / VideoToolShed
When outputting QT with multiple audio tracks, on the first one is flagged as active. Now I found this documented, and ‘should’ be fixed, but it’s still the case. (And it’s bad, as Premiere ignores those tracks.) Anything I can do? Bouke ffmpeg -threads 2 -i V\patchTest\352_1157.MXF -map 0:0 -

Re: [FFmpeg-user] Decklink SDI Closed Captions / teletext capture

2017-11-12 Thread Carl Eugen Hoyos
2017-11-10 21:44 GMT+01:00 Ross Currie : > Has anyone had any success capturing closed captions text from SDI using a > decklink card? > > I'm having trouble getting any data from the subtitles stream. > > I'm trying a command like this: > > ffmpeg -txt_format text -raw_format yuv422p10 -format_cod

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Erik Dobberkau
> So I feel like I am missing something. Kevin, back then you have been asked if you had turned off all security monitoring for the target folder, such as Windows Defender, to which you haven't replied. ffmpeg is per se not a signed application, which could make utilities like such suspect there

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Rob Hallam
On 12 November 2017 at 06:37, Gyan Doshi wrote: > > On 11/12/2017 11:11 AM, Kevin Duffey wrote: > >> If other posts I found indicated that this was a normal speed I might >> accept it... however, I see many posts indicating they get 100, 200 or more >> fps when concat/demux is being used where I am

Re: [FFmpeg-user] Windows 10, ffmpeg concat/demux is slow... part 2

2017-11-12 Thread Rob Hallam
On 12 November 2017 at 05:41, Kevin Duffey wrote: > Incidentally, I send this and reply via email. Is there some way to not top > post? A few of you responded last time with telling me not to top post, but I > am not sure what that is and how to avoid it when using email replies. > thank you.