Re: [xine-devel] vaapi h264 ts problem

[Torsten J. <t....@gm...>]

Hello,

> vaapi is broken again for h264 ts (not for mpeg2)

Oh dear.

I do not have VAAPI hardware. I use opengl2 and sometimes VDPAU
through the binary NVIDIA driver. Thus I cannot reproduce your
issue here. I remember Petri once told me he is using Intel gfx
but he also seems to be far away for weeks now.

But we can at least try to get a crash report. Since XINE
crashed with a classic segfault, running it inside the debugger
should help:

   $ gdb xine | tee xine_crash.log

If that fails please install the GNU debugger.
There should be some welcome info now followed by a list of
loaded and missing debug symbols. XINE and xine-lib syms
are probably present because you built these yourself from
sources. For the VAAPI subsytem you depend on the kindness
of your gfx driver (my NVIDIA one cloaks itself into silence
there... ).

Run xine:

   (gdb) run --verbose=2 00001.ts

Sooner or later that crash appears:

   Program received signal SIGSEGV, Segmentation fault.
   0xffffe430 in __kernel_vsyscall ()
   (gdb) _

Now request a so-called backtrace of all threads:

   (gdb) thread apply all bt

Maybe you need to hit ENTER a few times to get all output.
And exit:

   (gdb) q
   A debugging session is active.

         Inferior 1 [process 3036] will be killed.

   Quit anyway? (y or n) y
   $

There should now be a usable xine_crash logfile.

I'm not sure whether xine itself is the reason.
You may test for that by replacing libs individually
(not all at once), eg try previous gfx driver with
new ffmpeg and vice versa.

> libva info: VA-API version 0.34.0
> libva info: va_getDriverName() returns 0
> libva info: Trying to open /usr/lib64/va/drivers/i965_drv_video.so
> libva info: Found init function __vaDriverInit_0_34
> libva info: va_openDriver() returns 0
> video_out_vaapi vaapi_open: Vendor : Intel i965 driver - 1.2.1.pre1
> video_out_vaapi vaapi_init : Context width 1920 height 1080
> video_out_vaapi vaapi_init : guarded render : 1
> video_out_vaapi vaapi_init : glxrender      : 0
> video_out_vaapi vaapi_init : glxrender tfp  : 0
> video_out_vaapi vaapi_init : is_bound       : 1
> video_out_vaapi vaapi_init : scaling level  : name default value 0x00000000
> video_out_vaapi vaapi_open: Deinterlace : 0
> video_out_vaapi vaapi_open: Render surfaces : 50
> video_out_vaapi vaapi_open: Opengl render : 0
> video_out: thread created

> demux_ts: PAT transport_stream_id changed
> demux_ts: found ISO 639 lang: fra
> demux_ts: found ISO 639 lang: qaa
> demux_ts: found ISO 639 lang: qad
> load_plugins: plugin spudvb will be used for spu streamtype 03.

Do samples _without_ subtitles work?
Rendering those means tweaking the video out surfaces which is a
potential hazard.

> ffmpeg_video_dec: vaapi_mpeg_softdec 0
> ffmpeg_video_dec: VAAPI Enabled in config.
> load_plugins: plugin ffmpegvideo will be used for video streamtype 4d.
> ffmpeg_video_dec: force AVDISCARD_DEFAULT for VAAPI
> ffmpeg_video_dec: direct rendering enabled
> ffmpeg_video_dec: direct rendering enabled
> ffmpeg_audio_dec: augmentation du buffer à 98304 pour éviter sa saturation.
> ffmpeg_video_dec: augmentation du buffer à 206359 pour éviter sa saturation.

> libva info: VA-API version 0.34.0
> libva info: va_getDriverName() returns 0
> libva info: Trying to open /usr/lib64/va/drivers/i965_drv_video.so
> libva info: Found init function __vaDriverInit_0_34
> libva info: va_openDriver() returns 0
> video_out_vaapi VAAPI Supported Profiles : VAProfileMPEG2Simple
> VAProfileMPEG2Main VAProfileH264Baseline VAProfileH264Main
> VAProfileH264High VAProfileVC1Simple VAProfileVC1Main
> VAProfileVC1Advanced <unknown> <unknown>
> video_out_vaapi VAAPI Profile VAProfileH264High supported by your hardware
> libva info: VA-API version 0.34.0
> libva info: va_getDriverName() returns 0
> libva info: Trying to open /usr/lib64/va/drivers/i965_drv_video.so
> libva info: Found init function __vaDriverInit_0_34
> libva info: va_openDriver() returns 0
> video_out_vaapi vaapi_open: Vendor : Intel i965 driver - 1.2.1.pre1
> video_out_vaapi vaapi_init : Context width 0 height 0
> video_out_vaapi vaapi_init : Profile: 7 (VAProfileH264High) Entrypoint 1
> (VAEntrypointVLD) Surfaces 50
> xiTK received SIGSEGV signal, RIP.
> Abandon
>

Well ...

Torsten