Proper way for redirect or disable stderr for libva messages

**alanwww1** · 2011-11-14 10:35

I noticed that after each movie opened with vaapi, libva prints out a log message to stderr. It trashes the terminal after a few movies completely like this:

Code:

~$ xbmc

libva: libva version 0.32.0

libva: va_getDriverName() returns 0

libva: Trying to open /usr/lib/dri/i965_drv_video.so

libva: va_openDriver() returns 0

libva: libva version 0.32.0

libva: va_getDriverName() returns 0

libva: Trying to open /usr/lib/dri/i965_drv_video.so

libva: va_openDriver() returns 0

libva: libva version 0.32.0

libva: va_getDriverName() returns 0

libva: Trying to open /usr/lib/dri/i965_drv_video.so

libva: va_openDriver() returns 0

in libva the line looks like this:

Code:

va_infoMessage("Trying to open %s\n", driver_path);

Code:

void va_infoMessage(const char *msg, ...)

{

    va_list args;

    fprintf(stderr, "libva: ");

    va_start(args, msg);

    vfprintf(stderr, msg, args);

    va_end(args);

}

In xbmc the initalization function is called like this.

Code:

VADisplay disp;

  disp = vaGetDisplayGLX(g_Windowing.GetDisplay());

  int major_version, minor_version;

  VAStatus res = vaInitialize(disp, &major_version, &minor_version);

  if(res != VA_STATUS_SUCCESS)

  {

    CLog::Log(LOGERROR, "VAAPI - unable to initialize display %d - %s", res, vaErrorStr(res));

    return display;

  }

  CLog::Log(LOGDEBUG, "VAAPI - initialize version %d.%d", major_version, minor_version);

  display = CDisplayPtr(new CDisplay(disp));

  display_global = display;

  return display;

Is there a way to completely redirect these messages to the xbmc log file ? How to do this properly ?

If not is there a way to completely disable them ? After all we already haver a debug info logged about the status of the opening and the version of libva.

Thanks,

Alan

**spiff** · 2011-11-14 15:20

correct way is for libva to have log callbacks. only way to do it otherwise, as far as i know (don't have the details here), is to use freopen (stderr), but that's not really nice as that is application wide..

**alanwww1** · 2011-11-14 15:46

Thanks Spiff !

I'll contact Gwenole if there is a possibility to handle this in libva.

alanwww1 Team-XBMC Member Posts: 1,299 Joined: Nov 2008 Reputation: 31 Location: Hungary	2011-11-14 15:46 Post: #3 Thanks Spiff ! I'll contact Gwenole if there is a possibility to handle this in libva. Always read the XBMC online-manual, FAQ and search the forum before posting. Do not e-mail XBMC-Team members directly asking for support. Read/follow the forum rules. For troubleshooting and bug reporting please make sure you read this first.
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