Created attachment 332251 [details]
fail case

1. Testing Steps:
========================================================================
gst-launch-1.0 filesrc location=/media/mpeg2/dvd_still_frame.vob ! mpegvideoparse  ! vaapidecode ! vaapisink sync=false

2. Testing Env:
========================================================================
gst_plugins_vaapi:   (master)024d5401955d4d7b1348ba5f68180719640aa93c
libva:               (master)f7e22630bd18ed80d22da20a9dc18487938b6c8a
Libva_intel_driver:  (master)e5544460dcb4b325df42e343953e6d5b57f8f544

3. Frequency of Occurence:
========================================================================
100%

4. Fail case:
========================================================================
  1)  dvd_still_frame.vob

4. Error log:
========================================================================
root@x-kbl01:~# gst-launch-1.0 filesrc location=/media/mpeg2/dvd_still_frame.vob ! mpegvideoparse  ! vaapidecode ! vaapisink sync=false
libva info: VA-API version 0.39.2
libva info: va_getDriverName() returns 0
libva info: Trying to open /opt/X11R7/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Got context from element 'pipeline0': gst.vaapi.Display=context, gst.vaapi.Display=(GstVaapiDisplay)NULL;
0:00:00.056551375  4548       0xe441e0 ERROR            vaapidecode gstvaapidecode.c:665:gst_vaapidecode_handle_frame: decode error 8
0:00:00.058423710  4548       0xe441e0 ERROR                  vaapi gstvaapidecoder_mpeg2.c:891:parse_picture: failed to parse picture header
0:00:00.058454300  4548       0xe441e0 ERROR            vaapidecode gstvaapidecode.c:665:gst_vaapidecode_handle_frame: decode error 8
ERROR: from element /GstPipeline:pipeline0/GstVaapiDecode:vaapidecode0: No valid frames decoded before end of stream
Additional debug info:
gstvideodecoder.c(1168): gst_video_decoder_sink_event_default (): /GstPipeline:pipeline0/GstVaapiDecode:vaapidecode0:
no valid frames found
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
root@x-kbl01:~#