[gst-devel] Re: MingW conflict, was : DirectX sinks for Windows status

[John Cannon]

On 7/26/05, Michal Benes <michal.benes at xeris.cz> wrote:
> 
> Hi,
> 
> > 1) when you move the window, the video overlay remains at the original
> > position anyway
> 
>         I know about this issue. In fact, my Windows does not get the "changed
> position" or resized event. May be I have forgot some parameter when
> initializing it or I have handled some previous events wrong. Does
> somebody who knows the Windows API have any clue?

Sorry, I don't know win32 api

> > 2) crashes after a few minutes
> 
>         Yes my windows build is very very unstable. I will look into it. I not
> sure it is in the sinks, it seems to me there are some problems also in
> other plugins.
> > As for the audiosink, it works with sinesrc fine but not so well with
> > other audio.  I played an mp3 and it plays too fast and has some
> > popping in it.  Maybe your clock timing is wrong.
> 
>         Yes, I have the problem with popping too. As for too fast audio
> playback, I have seen this issue when the audio file had unsupported
> audiorate, but I have raised the limit to 100000 what should be enough
> (or not?)

The mp3 I was playing is 44100Hz.  If the source on your site is up to
date, the sink supports up to 44100Hz.  As for the max samplerate,
100000 should cover anything used by normal apps as I think 96kHz is
the most any normal sound card will support.  Maybe there are some
that do 192kHz by now.  If there's not reason to limit it below 192kHz
then i say use that as your cap.
 
> >
> > gst-launch.bat filesrc "location=E:/video.vob" ! decodebin "name=d" {
> > d. ! ffmpegcolorspace ! videoscale ! ddrawsink } { d. ! audioconvert !
> > dsoundsink }
> >
> 
>         You must add queue element between threads. The correct command is
> gst-launch.bat filesrc "location=E:/video.vob" ! decodebin
> "name=d" { d. ! queue ! ffmpegcolorspace ! videoscale ! ddrawsink }
> { d. ! queue ! audioconvert ! dsoundsink }

Yeah sorry, this was actually a problem with exceeding the length of a
command line (besides the missing queue).  Works fine in mingw with
the correct command.

> > Another issue, which may be an internal bug is when I try to decode
> > the mp2 audio in the vobwith the following:
> >
> > gst-launch-0.8.exe filesrc "location=E:/Video.vob" ! decodebin !
> > audioconvert ! dsoundsink
> >
> > Produces:
> >
> > RUNNING pipeline ...
> > ERROR: from element /pipeline0/decodebin0/ffdec_mp30: Internal
> > GStreamer error: pad problem.  File a bug.
> > Additional debug info:
> > gstpad.c(2562): gst_pad_set_explicit_caps:
> > /pipeline0/decodebin0/ffdec_mp30: failed to negotiate (try_set_caps
> > with "audio/x-raw-int, rate=(int)48000, channels=(int)2,
> > signed=(boolean)true, endianness=(int)1234, width=(int)16,
> > depth=(int)16" returned REFUSED)
> > ERROR: from element /pipeline0/decodebin0/ffdec_mp30: Internal
> > GStreamer error: negotiation problem.  File a bug.
> > Additional debug info:
> > gstffmpegdec.c(643): gst_ffmpegdec_negotiate:
> > /pipeline0/decodebin0/ffdec_mp30: Failed to link ffmpeg decoder (mp3)
> > to next element
> > Execution ended after 25 iterations (sum 359375000 ns, average
> > 14375000 ns, min 0 ns, max 281250000 ns).
> >
> 
> I will try to test test some .vob files. My be I have shipped the old
> version of dsoundsink which supports frequency only up to 41000Hz. (I
> have some other work now but I will look into it this afternoon). You
> can also try to add audioscale element before dsoundsink
> 
> > As for Ixion...It doesn't work for me.  It just freezes when loading any video.
> 
> On no, this is bad. i do not have an idea in the moment :(

I got Ixion to play a vob finally. But still no mpeg4 avis or anything.
 
>         Michal
> 
> 


-- 
John Cannon
Matroska Developer