GNOME Bugzilla – Bug 151909
Add frame-by-frame playback
Last modified: 2010-06-08 05:53:54 UTC
I wanted to put out a request to one of the video players for this feature, and totem is currently my favorite. However, all the video players for Linux are lacking this feature. A little backstory on why this is important: I work for the studio that made the Jimmy Neutron movie and tv series for Nickelodeon. We are currently starting production on another movie (unrelated to Jimmy Neutron), and are moving to linux across the entire studio. However, the major hang up right now is a video player that works the way we want, and scrubbing is one of the most important features. Animators, when playing back rendered views of their work, need to be able to scrub back and forth on the animation. Even better, quicktime has the ability to go frame by frame using the left and right arrow keys. This allows the artist to look at the animation in excruciating detail. Without it, scrutinizing a playback is quite difficult. This feature isn't available on most video players, even on windows. But it is one that is very useful for us, and I wanted to express our studio's concern for this one little feature.
Mass reassign.
I've the same problem Rich. I'm an animator that need the same feature and I work on Linux too. Hope this feature request become a feature on totem. Thanks.
I work in a postproduction house and suffer the scrubbing problem too. Hope Bastien and Ronald listen our petition ;)
I have some good news for you guys. The -threaded branch in GStreamer features scrubbing for Ogg and AVI right now, which means that you can seek to any frame in the movie (even non-keyframes) and they will be rendered as you seek (so you can move the seekbar left/right and get live updates from the video window). It doesn't do frame-per-frame yet (i.e., a seek to 'next frame' will re-render from the previous keyframe on until the next frame as if it were a complete new seek, which is kind of suboptimal, since it could just continue playing), but I think it's really cool. It'll take a while before this gets mainstream, but I wanted to excite you guys a bit already. ;). If you want ot play around, see our seek example in gst-plugins in -threaded, and compile with the SCRUB macro enabled.
*** Bug 301514 has been marked as a duplicate of this bug. ***
Please add support for Xine backend too. This is indeed a very useful feature. Quicktime rocks my world just because of this very feature, nothing else. My original feature request can be found on bug #301514 btw.
Moving to xine-lib, the GStreamer backend already has scrubbing support ("direct seeking").
2006-10-30 Bastien Nocera <hadess@hadess.net> * src/backend/bacon-video-widget-gst-0.10.c: (bacon_video_widget_class_init): * src/backend/bacon-video-widget-xine.c: (bacon_video_widget_class_init), (bacon_video_widget_idle_signal), (xine_event), (bacon_video_widget_can_direct_seek): * src/backend/bacon-video-widget.h: * src/totem-playlist.c: (totem_playlist_save_add_format_combo_box): * src/totem.c: (video_widget_create): Remove the speed-warning signal, we weren't using it, and it's more annoying than anything else Implement direct seeking for local URIs and DVDs when using xine-lib (Closes: #151909) Remove unused variables in totem-playlist.c Feature parity, whoo!
Thanks Bastien! BTW, what's the actual keyboard key we need to press for scrubbing frame by frame? Arrow keys or < or > ?
There's no frame by frame scrubbing, only "seeking" scrubbing I'm afraid. I guess that I should reopen this bug, and move it back to the Movie player component, as neither xine-lib nor GStreamer allow that right now.
Oh, I see... Yes, when I did my bug report back then (#301514), I was really suggesting frame by frame... I like that because it enables great screenshots. ;)
Created attachment 110995 [details] [review] totem-stepping.patch Tim, any ideas why this wouldn't be working? Press "." to go one frame forward. I tested with an ogm file, but I get the same thing with an AVI.
I used the instructions from: http://thread.gmane.org/gmane.comp.video.gstreamer.devel/18680
From bug 583456, Wim posted a patch. If someone could test this patch, and implement the equivalent of step_cb() into bacon_video_widget_step() of the patch posted above.
No UI for it, press the "." button to step. File a separate bug if you require a more comprehensive UI. commit 5cc7ad5f8521684612443298944a4517e6923e72 Author: Bastien Nocera <hadess@hadess.net> Date: Tue Jun 30 17:39:16 2009 +0100 Bug 151909 – Add frame-by-frame playback 2009-06-30 Bastien Nocera <hadess@hadess.net> * src/backend/bacon-video-widget-gst-0.10.c (bacon_video_widget_step): * src/backend/bacon-video-widget.h: * src/totem-object.c (totem_action_handle_key_press): Add frame-by-frame stepping, requires gstreamer 0.10.24, and a newer gst-plugins-base (Closes: #151909)