Re: [FFmpeg-user] Error extracting srt

2020-08-07 Thread Moritz Barsnick
On Wed, Aug 05, 2020 at 22:28:15 +0100, Alex Zachopoulos wrote: > This is the command I use to extract Stream #0:2 (subtitle) from file ^^ This is an input stream specifier, for mapping > 1.mp4, on both

[FFmpeg-user] VFR jpg files to live streaming video

2020-08-07 Thread xiaofeng
Hi, I have JPG files which are received in real time, and need to convert to video and streaming out. The problem is that the input rate is variable, from 0.5~2, very similar to this http://www.ffmpeg-archive.org/VFR-jpg-files-to-MJPEG-video-td4663659.html and

Re: [FFmpeg-user] directly view transcoding in video player

2020-08-07 Thread James Darnley
On 07/08/2020, Timothy W. Grove wrote: > I develop an application which displays a video, amongst other things. A > user may open just about any video format to view in the video display. > "Saving" a video will invoke ffmpeg to resize and transcode the video to > h264 (mp4) and display this

[FFmpeg-user] directly view transcoding in video player

2020-08-07 Thread Timothy W. Grove
I develop an application which displays a video, amongst other things. A user may open just about any video format to view in the video display. "Saving" a video will invoke ffmpeg to resize and transcode the video to h264 (mp4) and display this video. Is it possible to open the initial video

Re: [FFmpeg-user] DASH and Variable framerate

2020-08-07 Thread Moritz Barsnick
On Thu, Aug 06, 2020 at 15:00:55 +0200, Alfred E. Heggestad wrote: > I am wondering if DASH muxer supports variable framerate. [...] > What I have seen is that DASH and HLS behaves differently > regarding variable framerate input. >muxer: format: audio delay: > >DASH:

[FFmpeg-user] options of vidstabdetect video filter

2020-08-07 Thread PPRJ01
Hello All, Is there a maximum value for the "stepsize" option of vidstabdetect ? I don't see any in the documentation. I first tried this on Windows : ffmpeg -i "INPUT.mp4" -an -vf vidstabdetect=shakiness=10:accuracy=15:stepsize=6:result="TRF06.txt" "dummy.mp4" and then this : ffmpeg -i

Re: [FFmpeg-user] Error extracting srt

2020-08-07 Thread Alex Zachopoulos
Thank you SO much Moritz! On Fri, Aug 7, 2020 at 12:20 PM Moritz Barsnick wrote: > On Wed, Aug 05, 2020 at 22:28:15 +0100, Alex Zachopoulos wrote: > > This is the command I use to extract Stream #0:2 (subtitle) from file > ^^ This is an input stream

Re: [FFmpeg-user] options of vidstabdetect video filter

2020-08-07 Thread Moritz Barsnick
On Fri, Aug 07, 2020 at 17:16:24 +0200, PPRJ01 wrote: > Is there a maximum value for the "stepsize" option of vidstabdetect ? I don't > see any in the documentation. If it's not in the documentation (it should be), you can query all ranges with a command such as $ ffmpeg -h filter=vidstabdetect

Re: [FFmpeg-user] Compatibility of FFMPEG builds

2020-08-07 Thread Reto Kromer
Moritz Barsnick wrote: >If 10.7 is a Mac OS X version (I'm guessing here): >The binaries linked from the ffmpeg website won't work. I guess... you guess right, Moritz! Ilja, it works if you compile the source code yourself, but I don't know either a build which works. Best regards, Reto

[FFmpeg-user] Compatibility of FFMPEG builds

2020-08-07 Thread Ilja
Hello, I want to install ffmpeg on one of my older machines with 10.7. What is the latest compatible build and where's the downloadable link? Cheers, Me ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Compatibility of FFMPEG builds

2020-08-07 Thread Moritz Barsnick
On Fri, Aug 07, 2020 at 20:27:10 +0300, Ilja wrote: > I want to install ffmpeg on one of my older machines with 10.7. 10.7 of what? > What is the latest compatible build and where's the downloadable link? Since I don't know which operating system or distribution is meant, I can't help you. In

Re: [FFmpeg-user] Compatibility of FFMPEG builds

2020-08-07 Thread scrutinizer
Yes, I was talking about macOS 10.7, and even the source code needs to be compatible. Every link I ran across on FFMPEG.ORG will direct to the source code that would require at least macOS 10.9, but even with the long list of the links to source code it’s difficult to pick

[FFmpeg-user] FFmpeg on Apple Silicon (Success)

2020-08-07 Thread Aleksid
Hi, Just for information. Today I successfully compiled FFmpeg 4.3.1 for Apple Silicon (macOS 11 Beta Big Sur) on Apple Developer Transition Kit. Also I was able to include FFmpeg shared libraries for my test app. I used basic configure options to make sure that FFmpeg works on arm64:

Re: [FFmpeg-user] directly view transcoding in video player

2020-08-07 Thread Simon Roberts
On Fri, Aug 7, 2020 at 7:31 AM James Darnley wrote: > On 07/08/2020, Timothy W. Grove wrote: > > I develop an application which displays a video, amongst other things. A > > user may open just about any video format to view in the video display. > > "Saving" a video will invoke ffmpeg to resize