tiomap-dev team mailing list archive

[Nicolas Dechesne <880840@xxxxxxxxxxxxxxxxxx>]

@ricardo: yes, we have looked into this earlier this week and there is a
regression somewhere around syslink. if we enable the gst-ducati traces,
we can see that the time to process each frame is ~50ms, hence we are
dropping many frames. with 3.0 kernel this does not happen, the
processing time is ~25ms. it's just the decoding time, nothing to do
with rendering. i tried to measure the processing time on the ducati
side using the 32K, and it sounds like this side is fine (~20ms), which
would imply that the problem is in syslink...

sebjan is in vacation this week, and with xmas coming around, i am not
sure we will be able to tackle this this month.

@warmcat: is that something you can look into? very first thing to do
might be to measure the RPC call in a simple syslink samples and see
what we get for 3.0 vs 3.1, if we can observe the problem there, it
might be simpler to debug. otherwise we will need to debug with MM
packages, but it is quite straigtforward.

GST-ducati will end up calling VIDDEC3_process() function which is in
dce.c in libdce, and this function will use the RCM exec (RPC) API to
send the command and args to the ducati M3 where the actual
VIDDEC3_process is executed and uses the IVAHD.

-- 
You received this bug notification because you are a member of TI OMAP
Developers, which is subscribed to ubuntu-omap4-extras-multimedia.
https://bugs.launchpad.net/bugs/880840

Title:
  Panda: lack of hw video decoding support

Status in Linaro Texas Instruments Landing Team:
  Invalid
Status in Linaro Ubuntu Evaluation Builds:
  Confirmed
Status in OMAP4 Ubuntu Multimedia addons:
  New

Bug description:
  Hwpack: http://snapshots.linaro.org/oneiric/lt-panda-x11-base-
  oneiric/20111023/0/images/hwpack/hwpack_linaro-lt-
  panda-x11-base_20111023-0_armel_supported.tar.gz

  Image: http://snapshots.linaro.org/oneiric/linaro-o-ubuntu-
  desktop/20111023/0/images/tar/linaro-o-ubuntu-desktop-
  tar-20111023-0.tar.gz

  Media file:
  http://samplemedia.linaro.org/MPEG4/big_buck_bunny_1080p_MPEG4_MP3_25fps_7600K.AVI

  The video is not running smooth and CPU utilization in closed to 100%

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