Re: [FFmpeg-user] Images to video under Windows
On Tue, May 23, 2017 at 4:27 PM, Wolfgang Hugemann wrote: > > In regard to the other comment: I knew that Cygwin is an option, but my > main intent is to completely automise standard operations, such that all my > colleagues can perform them without thinking about what happens exactly. > Installing Cygwin on each client computer in our network would make things > more complicated. > The GOW project at https://github.com/bmatzelle/gow installs native win32 ports of the common *nix utilities, including cat. Far lighter than Cygwin. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
> This works for me in the cmd shell on Win7: > type *.jpg | ffmpeg -f image2pipe -i - {encoding options) output.ext > In any case, dir /b produces a listing. cat/type emit the data of the > operands. Thanks. This command line does the job. My problem was that I did not really know what exactly 'cat' does. In regard to the other comment: I knew that Cygwin is an option, but my main intent is to completely automise standard operations, such that all my colleagues can perform them without thinking about what happens exactly. Installing Cygwin on each client computer in our network would make things more complicated. Thanks for your hints! Wolfgang ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
On Tue, May 23, 2017 at 2:05 PM, Wolfgang Hugemann wrote: > > e.g. cat *.jpg | ffmpeg -f image2pipe -framerate 25 -i - out.mp4 > > Does piping really work under Windows? The Windows equivalent to 'cat' > would be 'dir /b'. But changing the command line this way creates an error > that basically says that the input stream is empty. > > I couldn't find any example for input piping with ffmpeg on Windows. Are > you sure that it functions at all? > > This works for me in the cmd shell on Win7: type *.jpg | ffmpeg -f image2pipe -i - {encoding options) output.ext In any case, dir /b produces a listing. cat/type emit the data of the operands. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
Am 23.05.2017 um 10:35 schrieb Wolfgang Hugemann: e.g. cat *.jpg | ffmpeg -f image2pipe -framerate 25 -i - out.mp4 Does piping really work under Windows? The Windows equivalent to 'cat' would be 'dir /b'. But changing the command line this way creates an error that basically says that the input stream is empty. I couldn't find any example for input piping with ffmpeg on Windows. Are you sure that it functions at all? BTW: Is there any source of information on the specifics and limitations when using ffmpeg under Windows? The situation seems to be a little bit like that for ImageMagick, where I had to write that kind of webpage myself (http://www.imagemagick.org/Usage/windows) well, the limitations of Windows are not really ffmpeg relevant itself https://www.cygwin.com/ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
> e.g. cat *.jpg | ffmpeg -f image2pipe -framerate 25 -i - out.mp4 Does piping really work under Windows? The Windows equivalent to 'cat' would be 'dir /b'. But changing the command line this way creates an error that basically says that the input stream is empty. I couldn't find any example for input piping with ffmpeg on Windows. Are you sure that it functions at all? BTW: Is there any source of information on the specifics and limitations when using ffmpeg under Windows? The situation seems to be a little bit like that for ImageMagick, where I had to write that kind of webpage myself (http://www.imagemagick.org/Usage/windows). Wolfgang Hugemann ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
2017-05-22 17:50 GMT+02:00 Bouke / VideoToolShed : > Piping is a bad idea, it craps out after some 40 images in my experience. > (Pipe to pipe to pipe to….) Then you have a problem in the way you do your pipe. At least on linux-like systems, cat *.png will only pipe from the cat process to ffmpeg, and nothing else. This setup have been used to pipe way more than 40 picutres at times :) and ffmpeg happily ate all of it. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
> On 22 May 2017, at 17:36, Wolfgang Hugemann wrote: > > Hey, > > I have a bunch of images that I want to convert into a video. These are, > however, not numbered consecuitively (not like 001.jpg, 002.jpg, ...). > > Well, I could make a copy of each and rename them in such a pattern, but is > there a more elegant way to perform the job? File name globbing is obviously > not supported by the Windows version. How about piping? Hi Wolfgang, Piping is a bad idea, it craps out after some 40 images in my experience. (Pipe to pipe to pipe to….) What about creating a Cat.txt file first, and use that as input? That works for me just fine. (Although the cat.txt is done outside FFmpeg…) hth, Bouke > Wolfgang Hugemann > ___ > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Images to video under Windows
On Mon, May 22, 2017 at 9:06 PM, Wolfgang Hugemann wrote: > How about piping? > Pipiing or the concat demuxer can work. e.g. cat *.jpg | ffmpeg -f image2pipe -framerate 25 -i - out.mp4 See https://stackoverflow.com/questions/40870357/input-parameters-to-ffmpeg ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Images to video under Windows
Hey, I have a bunch of images that I want to convert into a video. These are, however, not numbered consecuitively (not like 001.jpg, 002.jpg, ...). Well, I could make a copy of each and rename them in such a pattern, but is there a more elegant way to perform the job? File name globbing is obviously not supported by the Windows version. How about piping? Wolfgang Hugemann ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".