Swfdec - Oct 2008 - [Bug 18221] New: Video pauses within a few seconds

http://bugs.freedesktop.org/show_bug.cgi?id=18221

           Summary: Video pauses within a few seconds
           Product: swfdec
           Version: unspecified
          Platform: Other
               URL: http://dramaticmccain.com/?v
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: plugin
        AssignedTo: swfdec at lists.freedesktop.org
        ReportedBy: bugzilla-freedesktop at bkor.dhs.org
         QAContact: swfdec at lists.freedesktop.org


Using swfdec 0.8.2. Links: http://dramaticmccain.com/?v. The video loads, you
can hear a few secs of audio, then it pauses.

It prints the following messages:
Loading stream: http://dramaticmccain.com/dramaticmccain_v3.swf
unhandled event 19
Loading stream: http://dramaticmccain.com/Drama_3big.flv
Loading stream: http://dramaticmccain.com/SteelExternalPlaySeekMute.swf


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http://bugs.freedesktop.org/show_bug.cgi?id=18221


Riccardo Magliocchetti <riccardo at datahost.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|plugin                      |library




--- Comment #1 from Riccardo Magliocchetti <riccardo at datahost.it> 
2008-10-25 08:00:12 PST ---
These are the errors:

SWFDEC: ERROR: swfdec_video_decoder_gst.c(149):
swfdec_video_decoder_gst_decode: failed to pull decoded buffer. Broken stream?
SWFDEC: ERROR: swfdec_net_stream.c(96): swfdec_net_stream_decode_video:
can't
reduce size by more than available

Looks the same has been reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=14496#c3

"Accidentally, I found that certain flashvideo cannot start with swfdec. 
Sound is played, but seekbar and moviearea remain plain. When I save the .flv
to the disk, mplayer plays it correctly and the debug prints that it does so by
using ffmpeg's libavcodec codec family. Movie URL is at:
http://vbox7.com/play:d8169841"


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--- Comment #2 from Vincent Beers <VincentBeers at gmail.com>  2008-11-08
12:49:24 PST ---
> "Accidentally, I found that certain flashvideo cannot start with
swfdec.
> Sound is played, but seekbar and moviearea remain plain. When I save the
.flv
> to the disk, mplayer plays it correctly and the debug prints that it does
so by
> using ffmpeg's libavcodec codec family. Movie URL is at:
> http://vbox7.com/play:d8169841"
> 
I'm encountering the same problem, usually on YouTube:

Youtube videos don't play correctly. If I do nothing and just let the video
play, the video usually stays at one fixed frame until I scroll around the page
a bit. I have a pretty weak processor - 630 Mhz (standard downclocked Eee PC
processor), but when I just download the FLV file and play it in Totem the
video DOES play at full speed.

I wonder if I should file a seperate bug report because this thing has only
been reported in comments, it seems... This bug persists for me in a freshly
compiled 0.8.2.


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--- Comment #3 from Benjamin Otte <otte at gnome.org>  2008-11-08 14:10:34
PST ---
> Youtube videos don't play correctly. If I do nothing and just let the
video
> play, the video usually stays at one fixed frame until I scroll around the
page
> a bit. I have a pretty weak processor - 630 Mhz (standard downclocked Eee
PC
> processor)
>
This has to do with Swfdec skipping the rednering of frames when the CPU is
fully loaded. Unfortunately, it might just skip _all_ frames, which results in
the image never updating.
So the reason Swfdec does not play Youtube is that its script interpreter is
too slow for your computer - or vice versa: your computer is too slow for
Swfdec, your choice :)
Out of interest: Does Adobe's player work?
> when I just download the FLV file and play it in Totem the
> video DOES play at full speed.
>
See http://swfdec.freedesktop.org/wiki/FAQ for why this happens.
> I wonder if I should file a seperate bug report because this thing has only
> been reported in comments, it seems... This bug persists for me in a
freshly
> compiled 0.8.2.
> 
I don't think filing "Swfdec's script interpreter is too slow"
is a useful
idea. It's very unlikely to go away very soon, unless people show up to
spend
time optimizing the script interpreter. I'm personally way more interested
in
reaching feature parity with Adobe's player than in being faster, so
you're
unlikely to see it becoming lots faster.


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