Re: [FFmpeg-user] xfade works perfectly on any videosrc or video file, but not for images?

2021-09-26 Thread Arif Driessen
Argh! That fixed it!! Thank you. On Sun, Sep 26, 2021 at 2:06 PM Paul B Mahol wrote: > On Sun, Sep 26, 2021 at 1:02 PM Arif Driessen wrote: > > > > Sorry, but loop filter does not work that way. > > > > size parameter of loop filter is by default 0, meaning it will loop > > nothing. > > For sin

Re: [FFmpeg-user] High audio latency (although low with ffplay!)

2021-09-26 Thread Arif Driessen
Well, definitely more the audio side than the video side. But I wouldn't be opposed to getting there eventually, or even first, if there's something relatively simple that needs doing! But at this point in my level of competence, (I think) I basically need someone wiser than me to just say, "do thi

Re: [FFmpeg-user] High audio latency (although low with ffplay!)

2021-09-26 Thread Paul B Mahol
On Sun, Sep 26, 2021 at 1:55 PM Arif Driessen wrote: > > should be working, if not report bug. > Ah okay, I did some investigation, and indeed (as usual) I was wrong. The > option does appear in the documentation for the OUTPUT device: > https://ffmpeg.org/ffmpeg-devices.html#pulse-1 > > Kind of

Re: [FFmpeg-user] xfade works perfectly on any videosrc or video file, but not for images?

2021-09-26 Thread Paul B Mahol
On Sun, Sep 26, 2021 at 1:02 PM Arif Driessen wrote: > > Sorry, but loop filter does not work that way. > > size parameter of loop filter is by default 0, meaning it will loop > nothing. > For single images you must set this option to exactly 1. > > Hi Paul, unless I misunderstand, in my email I

Re: [FFmpeg-user] High audio latency (although low with ffplay!)

2021-09-26 Thread Arif Driessen
> should be working, if not report bug. Ah okay, I did some investigation, and indeed (as usual) I was wrong. The option does appear in the documentation for the OUTPUT device: https://ffmpeg.org/ffmpeg-devices.html#pulse-1 Kind of a shame... I was excited about my first contribution to a major op

[FFmpeg-user] blend: subtract to alpha video

2021-09-26 Thread Stefan de Konink
The blend video filter allows to 'subtract' two frames from each other. But I am unable to get this to work as I would expect with Gimp's color-erase. This gives me an all transparent png (including the reversed input), it is not what I expect, but at least it has a transparent output. ffmpeg

Re: [FFmpeg-user] xfade works perfectly on any videosrc or video file, but not for images?

2021-09-26 Thread Arif Driessen
> Sorry, but loop filter does not work that way. size parameter of loop filter is by default 0, meaning it will loop nothing. For single images you must set this option to exactly 1. Hi Paul, unless I misunderstand, in my email I stated that i tried loop with the option loop=1 ___