[vlc-devel] Some VLC problems and wish list for dioneoa

jboileau jboileau at gmail.com
Mon Jun 23 23:46:35 CEST 2008

One more thing I have just tested/played with: plaback rate:

At 8x, the maximum available using the + button, the video freezes
after a short while. I also saw freeze up at 0.03x the minimum the -
button will take us. I know 0.03x is slow but I have waited more than
a minute without any change. I get the usual message when video can't
keep up in both cases:

avcodec error: more than 5 seconds of late video -> dropping frame
(computer too slow ?)

The range of the + and - buttons is 0.03x to 8x, different from what
j-b stated as the range: 0.125 to 32x. I don't know if its a bug or
desired functionnality.

Jacques Boileau

On Mon, Jun 23, 2008 at 4:31 PM, jboileau <jboileau at gmail.com> wrote:
> Hi,
> As requested by dioneona here is a quick list of a few problems I have
> come accross testing VLC`s extended panel and filters:
> - If a file is playing and you check 'Add logo' the video output
> disappears. The message: error: logo file not specified is outputed
> but since you can't enter a logo before checking 'Add logo' this is
> not convenient.
> - Even after inputing a correct file name for a logo, I can't get the
> logo filter to work. Anytime I click on 'Add logo' the video output is
> killed. I was entering a full pathname c:\vlc128x128-christmas.png. I
> also tried with forward slash with the same result.
> - Using the libvlc API to add a logo using the API in my application
> works with one problem: the transparent color is not transparent.
> - If the extended panel is open but hidden under another application
> it is not brought to the forefront when VLC gains focus. It may thus
> be hidden completly from view.
> - Adding another filter along with magnify result in extreme slowdown
> until complete freeze. (I have tried marquee and adjust I don`t which
> other will give the same results)
> Wish list (we can dream no?):
> - I wish the marquee text did not default to 'VLC' but to an empty
> string or a space at the most. I create and set up my marquee's
> position first and then send text to it many times. But 'VLC' shows up
> before I have time to send my first text line. I know I can set the
> text to a space qhen I create my marquee, but I don't see the point in
> outputing 'VLC' by default. Unless I am missing something I can't see
> anyone using a marquee that says 'VLC'.
> - The filter chain API had persistence so that filters are reapplied
> when vout is recreated.
> - An API similar to the filter chain API for the Video Output Filters:
> The filter API is so much better than editing filter chain strings!
> - That VLC development was easier! :-) I do my best at understanding
> VLCs internals but still feel light years away. Okay, this is not a
> wish that you can help that much with, although I do appreciate
> everyone's help and patience on this list and IRC.
> - I wish I knew what dionoea meant! :-) It would probably make it
> easier to remember how to spell it.
> I hope this list helps.
> Jacques Boileau

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