[FFmpeg-user] No frame progress on video stream copy

Hi, There seem to be a change from 6.0 to 6.1 that cause frame, fps and q to *not* to be outputted to progress when copying video stream. Simple minimum way to recreate: *Using 6.0.1 build from master November 30. 2023:* * ffmpeg -f lavfi -i smptebars -c copy -t 0 -f null -* *frame=0

Re: [FFmpeg-user] Multiline subtitles without thin dark line

> > > On 15 Feb 2023, at 13:21, Steinar Apalnes wrote: > > > > Hi, > > > > I want to create subtitles with multiple text lines using BorderStyle=3 > in > > order to have the background color adapt to the length of each line. The > > problem is tha

Re: [FFmpeg-user] Changing scan type (progressive<->interlaced) without reencoding.

> > > >Most notably content that has progressive video but stored interlaced. > > "encoded" rather than "stored", but yes, it is indeed very commonplace. > > Nevertheless, be very very carefull, it is also very very commonplace to > > have interlaced branding/finishing on progressive content, so

Re: [FFmpeg-user] Changing scan type (progressive<->interlaced) without reencoding.

> > >As the title says, is this at all possible? My concern is mostly with > mpeg2 and h264 that have content of one type but encoded/marked as another. > In a general manner, amongst other things, interlaced encoding involves > interlaced DCT, so this is not possible because it is not a simple

[FFmpeg-user] Changing scan type (progressive<->interlaced) without reencoding.

the "field_order", "top" etc. flags when rewrapping does nothing.But I have not found anything in the official docs that suggest this is currently possible so it would be nice if some of you developers could shed some light on this. Tha

[FFmpeg-user] Prevent automatic video/color range conversion

Hi, Is it possible to totally disable automatic video/color range conversion when using the "format" filter? -steinar ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above,

[FFmpeg-user] Control sws_scaler automatic range and matrix conversion

Hi, Using the ffmpeg executable I'm trying to control how the sws_scaler behaves when applying the "scale" filter. Basically I need to turn off any automatic range and matrix conversion. This can seemingly be accomplished by explicitly setting the same input and output: in_color_matrix =

Re: [FFmpeg-user] Problems controlling sws-scale dithering.

fre. 25. jun. 2021 kl. 10:14 skrev Steinar Apalnes : > Hi, > > I'm having difficulty controlling dithering when video bit depth goes > down. The following command illustrates the problem: > > ffplay.exe -f lavfi -i mandelbrot -sws_dither none -vf > scale=sws_dither=none,for

[FFmpeg-user] Problems controlling sws-scale dithering.

Hi, I'm having difficulty controlling dithering when video bit depth goes down. The following command illustrates the problem: ffplay.exe -f lavfi -i mandelbrot -sws_dither none -vf scale=sws_dither=none,format=rgb8 I'm just using ffplay to visually show the undesired effect. Normal operation

Re: [FFmpeg-user] Injecting clock based TC at first frame captured

02:00 Dave Rice : > > > On Jun 5, 2018, at 4:12 PM, Steinar Apalnes wrote: > > > > Thanks for the reply! :-) > > > > My request/question is not strictly related to decklink but capturing in > > general; The ability to set the start tc when the first frame is

Re: [FFmpeg-user] Injecting clock based TC at first frame captured

on the PC clock to determine the "exact" capture time of the first frame. If it's feasable. -steinar 2018-06-05 21:47 GMT+02:00 Dave Rice : > > > On Jun 4, 2018, at 4:41 PM, Steinar Apalnes wrote: > > > > Hi, > > > > I'm doing a lot of cap

[FFmpeg-user] Injecting clock based TC at first frame captured

. or -tc_inject now -timecode now Maybe this kind of option exist or maybe there are other good ways of solving the "problem" but I have yet to find a solution. Thanks! Steinar Apalnes ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://