[gst-embedded] GStreamer on TI's embedded platform
vijay.linux.mail at gmail.com
Mon Apr 7 05:32:03 PDT 2008
I received TI's port of gstreamer to it's DaVinci processors from
I've tried to run the example (scripts) provided by TI and I've faced what
seem to be two separate issues.
I've copied the stdout log below:
<linux prompt>:/opt/system_files_gstreamer# ./test_MP3.sh MP3_file.mp3
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
(gst-launch-0.10:1204): GStreamer-WARNING **: pad adecoder0:src returned
caps which are not a real subset of its template caps
(gst-launch-0.10:1204): GStreamer-CRITICAL **: gst_caps_get_structure:
assertion `index < caps->structs->len' failed
(gst-launch-0.10:1204): GStreamer-CRITICAL **: gst_structure_get_int:
assertion `structure != NULL' failed
[program hangs here]
For most of you, who don't know about this script: All it does is after
setting the gstreamer, plugin and library paths, it runs gst-launch with a
pipeline, thus: gst-launch-0.10 filesrc location=$1 ! adecoder Codec=3 !
The two issues I'm facing:
(a) The *last* element in the gstreamer pipeline does not reply with a
message to the app saying it has paused (This is ascertained with debug
prints that I inserted in gst-launch.c. It's possible that for some reason,
the element does not pause. I've faced this same issue with pipelines which
have no decode/render elements as well.) Actually, I'm not sure if (a) it
doesn't pause because it doesn't finish preroll or (b) it says it hasn't
finished preroll because it doesn't send a pause signal! (I'm not sure which
is the cause and which is the effect).
(b) The critical errors printed (seen above. I guess these are caused
because of TI's mp3 decoder element plugin.) Could the adecoder capabilities
be incompatible? Seems unlikely, since TI would have tested this first.
Would anyone know what the issue might be? Has anyone seen a similar issue
I'd greatly appreciate any help.
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