Re: [FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

2017-10-22 Thread Andy Furniss
Andy Furniss wrote: Andy Furniss wrote: LaHu wrote: I assume the movie is encoded using IPB frames. Thus I can't step from any frame to the previous/next frame but from I-frames to I-frames only. This is not true, mpv can step OK with IPB, it can also field step if you are de-interlacing.

Re: [FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

2017-10-22 Thread Andy Furniss
Andy Furniss wrote: LaHu wrote: I assume the movie is encoded using IPB frames. Thus I can't step from any frame to the previous/next frame but from I-frames to I-frames only. This is not true, mpv can step OK with IPB, it can also field step if you are de-interlacing. Hmm, testing mpv

Re: [FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

2017-10-22 Thread Andy Furniss
Carl Eugen Hoyos wrote: 2017-10-21 17:44 GMT+02:00 LaHu : I like to watch movies in details. In order to check a movie for logical errors I watch some scenes in slow motion or even stepping throug them forward and backwards. I can't step really +-1 Frame, sometimes

Re: [FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

2017-10-22 Thread LaHu
I assume the movie is encoded using IPB frames. Thus I can't step from any frame to the previous/next frame but from I-frames to I-frames only. So I'd like to convert the movie to an I-frame only format. I don't wan't to convert it to a series of still pictures like bmp or jpg. Am 21.10.2017

Re: [FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

2017-10-22 Thread Andy Furniss
LaHu wrote: I assume the movie is encoded using IPB frames. Thus I can't step from any frame to the previous/next frame but from I-frames to I-frames only. This is not true, mpv can step OK with IPB, it can also field step if you are de-interlacing. So I'd like to convert the movie to an

[FFmpeg-user] FFMPEG sidechaincompress not working as it should?

2017-10-22 Thread Frank @ Taapo
I have been trying to get sidechaining to work with FFMPEG, but my complex filter skills are lacking. I'm running two aif files into ffmpeg, hoping the voice would "duck" the background music when the voice-over is speaking. But I get an error with this command-line (on Windows, with latest

Re: [FFmpeg-user] Missing frames when using ffconcat

2017-10-22 Thread Thomas Howe
I've since found and started using another solution - changing the way I generate the scripts to use image2pipe instead of ffconcat. The input frames are drawings of numbers, to help with troubleshooting, and I don't know how to make ffmpeg do that. I'm not sure I'd suggest it as a feature