[MPlayer-users] Command for stepping frame by frame

Jonas Jermann jjermann at gmx.net
Wed Feb 5 21:27:16 CET 2003

On Wed, Feb 05, 2003 at 11:46:46AM +0100, Struan Bartlett wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Jose Romildo Malaquias wrote:
> >[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >Hello.
> >
> >I would like to advance frame by frame when playing
> >a movie with mplayer, and possibly have an indication
> >of the frame being shown at each step. Is that
> >possible? If yes, how?
> >
> >Is it also possible to affect the speed of playback
> >of a movie, while the movie plays? Sometimes I want
> >to play it slow, for instance.
> >
> >Romildo
> > 
> >
> I too wanted to be able to fast forward (and rewind) through a movie at 
> variable rates, preferably with the sound enabled (sometimes I'm looking 
> for some sound or music), like on a CD player.
> On Ogle, there's a fast forward feature, but with no sound.
> I tried a short hack to mplayer, to alter the 'playback_speed' setting 
> while the movie is playing. It worked fine, except that audio speed is 
> not adjusted, and the A/V sync is lost. That's a big 'except'! I'm not 
> well up on the code that handles the audio (timers, etc?), but perhaps 
> someone else has the know-how about how to get the audio re-synced after 
> the playback_speed returns to 1, or how to keep it synced while the 
> playback_speed is > 1.

I thought the "-speed" option was made to do this... (?)


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