Re: [FFmpeg-user] Asking for help about FFmpeg
Thank you for your reply. Yes, I don't need an output video. I just want to decode a video at 25 fps and then calculate the miss rate. So I don't want to skip anything. ___ Mohammed BEY AHMED KHERNACHE PhD student at Lab-STICC Université Bretagne Sud, Lorient, France mohammed.bey-ahmed-kherna...@univ-ubs.fr mohbeyi...@gmail.com ___ On Sat, May 5, 2018 at 1:39 AM, Carl Eugen Hoyos wrote: > 2018-05-04 20:02 GMT+02:00, mohammed bey ahmed khernache < > mohbeyi...@gmail.com>: > > > When I try to decode a video which is encoded with HEVC > > (using ffmpeg) at a certain fps (e.g fps=25), the result is a > > decoded video but at a different fps. > > This sounds as if your problem is that your output video > has a different fps than your input video. > > > How can I decode a video at exactly 25 fps, even if I get > > high miss rate ? > > I am using this command for decoding: > > ffmpeg -benchmark -i -f null out.null > > But this command does not produce an output video... > > Or are you only discussing the decoding speed? > FFmpeg generally decodes as fast as possible, > depending on your hardware (and video resolution), it > is possible that real-time decoding is not possible. > > There are options to skip the loopfilter, skip B-frames > and even skip P-frames to speed up decoding: > -skip_loop_filter all > -skip_frame bidir / -skip_frame noref > -skip_frame nokey > > Carl Eugen > ___ > 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 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] Asking for help about FFmpeg
2018-05-04 20:02 GMT+02:00, mohammed bey ahmed khernache : > When I try to decode a video which is encoded with HEVC > (using ffmpeg) at a certain fps (e.g fps=25), the result is a > decoded video but at a different fps. This sounds as if your problem is that your output video has a different fps than your input video. > How can I decode a video at exactly 25 fps, even if I get > high miss rate ? > I am using this command for decoding: > ffmpeg -benchmark -i -f null out.null But this command does not produce an output video... Or are you only discussing the decoding speed? FFmpeg generally decodes as fast as possible, depending on your hardware (and video resolution), it is possible that real-time decoding is not possible. There are options to skip the loopfilter, skip B-frames and even skip P-frames to speed up decoding: -skip_loop_filter all -skip_frame bidir / -skip_frame noref -skip_frame nokey Carl Eugen ___ 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] Asking for help about FFmpeg
Hello, I am working on video decoding using FFmpeg. When I try to decode a video which is encoded with HEVC (using ffmpeg) at a certain fps (e.g fps=25), the result is a decoded video but at a different fps. How can I decode a video at exactly 25 fps, even if I get high miss rate ? I am using this command for decoding: ffmpeg -benchmark -i -f null out.null Please, any help is welcome. Best regards. ___ Mohammed BEY AHMED KHERNACHE PhD student at Lab-STICC Université Bretagne Sud, Lorient, France mohammed.bey-ahmed-kherna...@univ-ubs.fr mohbeyi...@gmail.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".
