> > I build ffmpeg with x265 and svt-hevc. I can do transcoding via
> > ffmpeg command. But how to use svt-hevc in x265 via ffmpeg
> > command?
>
> I don't understand what you mean by "use svt-hevc in x265". svt-hevc
> is an HEVC/H.265 encoder. (lib)x265 is an HEVC/H.265 encoder. You
> would
> The thing I am trying to achieve is a compromise between these two
> extremes, eg. a method which gives less cropping at the LH & RH
> picture edges for the price of a little padding above and below the
> picture. I'm presuming this (ideally) involves scaling, padding and
> cropping together
> I am making animations in html5 canvas. I am able to get frames from
> canvas using requestAnimationFrame() and convert them to png dataurl.
> I want to send these frames to an ffmpeg running on localhost for
> live encoding (I want to send the encoded video to rtmp server
> afterward).
>
>
> Hi,
>
> I'm new to this list.
>
> I'm seeking for a tool to remove the start and end sections of a movie
> recorded from TV, plus sections on the middle (commercials), in
> Linux. I have tried several GUI tools and they are either too complex
> or lack some crucial feature (like handling two
> > The '+' sign in front of the flags is not going to work? I disagree.
> > ffmpeg's command line parser doesn't care whether the first flag is
> > prepended with a '+' or not:
>
> Actually, I found this comment
>
> when using -vf "deshake" a black frame is coming separating the
> original frame from the "interpolated" pixels along the boders.
> More like a line than a frame actually !
> Is there a way I can turn off these black lines ?
As far as i know you have to "zoom in" to get rid of the artifacts at
> The error message says...
>
> /home/user/build/lib/libmp3lame.a(takehiro.o):(.rodata+0x0): multiple
> definition of
> `slen2_tab' /home/user/build/lib/libshine.a(tables.o):(.rodata+0xc80):
> first defined
> here /home/user/build/lib/libmp3lame.a(takehiro.o):(.rodata+0x40):
> multiple definition
> > What processing do you want to do with ffmpeg?
>
> At a minimum I foresee concatenating input files with it. My current
> project has 350+ video files. Avisynth cannot work with more than 25
> - 35 without crashing. I have not found an Avisynth mechanism for
> concatenating files that
> I hope to reach an expert familiar with both ffmpeg and Avisynth! Im
> looking to perform some processing in ffmpeg, and then to continue in
> Avisynth. For a number of reasons, including disk space, Id like to
> avoid intermediate files. Which, if any, of the ffmpeg server
> protocols are
Does seeking in the original file works with ffplay?
I cannot answer your question because I do
not know how to try seeking from a console.
(I don't understand what you are saying here.)
Did you try playing your input file with ffplay?
Does it play? Did you try to seek?
Did you
Hi,
I used the command of 'ffmpeg -i ./file1.mp4 ./file2.mp4' to
trancode. But I found moov box is behind mdat box in file2.mp4.
How to how to make moov box before mdat box in mp4 file?
See format documentation:
https://ffmpeg.org/ffmpeg-formats.html#mov_002c-mp4_002c-ismv
Either run
I use the below command to place one image on one video:ffmpeg
-i ./file1.mp4 -i ./file2.jpg -filter_complex overlay ./file3.mp4
But there is no transparent effect in resulting file, i.e. file3.mp4.
What is the command to use alpha channel to make transparent effect?
Have a look at the
I use the below command to place one image on one video:ffmpeg
-i ./file1.mp4 -i ./file2.jpg -filter_complex overlay ./file3.mp4
But there is no transparent effect in resulting file, i.e.
file3.mp4. What is the command to use alpha channel to make
transparent effect?
Have a look at
I am stil looking around for other solutions, but the idea is to
combine 30 images of 500x500 to a combined total image of 2500x3000
pixels. The reason I would like to use ffmpeg for is the batchfile
automation. The smaller images change content so the new total map
needs to be updated when
How to scale watermark proportionally video frame size (to width and
to height of video frame)?
Now I use the following command:
ffmpeg -i input.mkv -i logo.png -filter_complex
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