[gst-plugins-base-0.10.32] playbin2 detects 'text/x-ssa' not 'application/x-ssa' or 'application/x-ass' when play ass subtitle

[bcxa sz]

Hi Developer,

Just tried one avi file with .ass subtitle and found that there is no
approprate subtitle element picked up by playbin2 because the type
found is 'text/x-ssa'.

And the caps of ssaparse is 'application/x-ssa' or
'application/x-ass'. So it seemed that the gstreamer had issue to
playback .ass/.ssa subtitle.

[liud at fedora14 x86-source]$ gst-launch playbin2
uri=file:///mnt/winhost/sub_9/SUB-08.avi
suburi=file:///mnt/winhost/sub_9/SUB-08.en.ass  --gst-debug=2
PROP_URI file:///mnt/winhost/sub_9/SUB-08.avi
PROP_SUBURI file:///mnt/winhost/sub_9/SUB-08.en.ass
Setting pipeline to PAUSED ...
0:00:00.296188803 13473  0x9d7f070 WARN                 default
descriptions.c:985:gst_pb_utils_get_codec_description: No description
available for media type: text/x-ssa
0:00:00.296533109 13473  0x9d7f070 WARN            uridecodebin
gsturidecodebin.c:756:unknown_type_cb:<uridecodebin1> warning: No
decoder available for type 'text/x-ssa'.
0:00:00.296657752 13473  0x9d7f070 WARN              decodebin2
gstdecodebin2.c:3152:gst_decode_bin_expose:<decodebin20> No suitable
plugins found
0:00:00.296682904 13473  0x9d7f070 WARN              decodebin2
gstdecodebin2.c:3154:gst_decode_bin_expose:<decodebin20> error: no
suitable plugins found
0:00:00.296758082 13473  0x9d7f070 WARN                 default
descriptions.c:985:gst_pb_utils_get_codec_description: No description
available for media type: text/x-ssa
0:00:00.296835774 13473  0x9d7f070 WARN              decodebin2
gstdecodebin2.c:1567:analyze_new_pad:<decodebin20> error: A text/x-ssa
decoder plugin is required to play this stream, but not installed.
0:00:00.296868193 13473  0x9d7f070 WARN              decodebin2
gstdecodebin2.c:1567:analyze_new_pad:<decodebin20> error: No decoder
to handle media type 'text/x-ssa'
0:00:00.311817004 13473  0x9ed4230 WARN                 basesrc
gstbasesrc.c:2574:gst_base_src_loop:<source> error: Internal data flow
error.

[liud at fedora14 x86-source]$ gst-inspect ssaparse
Pad Templates:
  SINK template: 'sink'
    Availability: Always
    Capabilities:
      application/x-ssa
      application/x-ass

Please let me know whether I am wrong. If I am correct, I will raise
one bugzilla.

best regards

BCXA