Hi, I am trying to run the following pipeline on target board: *gst-launch-0.10 filesrc location= AAC_stereo.aac ! aacparse ! myaac_decoder ! alsasink -v* here myaac_decoder is the basic aac decoder element that i have written.But when I run this pipeline I get following error. My understanding from this error is that from aacparse I am getting event NEW_SEGMENT with format as NULL(highlighted this error)and hence decoder is not going ahead but i dont know how to fix this kind of issue. Kindly suggest some method to fix it. 0:00:01.068206190 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:998:fal_aac_parser_check_and_replenish_cache: Attempting to read 12288 bytes from postion 3022810 on handle=0x000aefe8 0:00:01.069960912 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:998:fal_aac_parser_check_and_replenish_cache: Attempting to read 12288 bytes from postion 3033405 on handle=0x000aefe8 0:00:01.071024121 1989 0xaf5c8 WARN GST_SCHEDULING gstpad.c:4772:gst_pad_get_range:<filesrc0:src> getrange failed unexpected 0:00:01.071961047 1989 0xaf5c8 WARN GST_SCHEDULING gstpad.c:4884:gst_pad_pull_range:<savsaacparser0:sink> pullrange failed unexpected 0:00:01.073741873 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:1162:savs_aac_parser_init_engine: AAC Stream is of format : 2 (ADTS) 0:00:01.074590418 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:1168:savs_aac_parser_init_engine: ADTS Parameters: Version=1, Profile=1, Sampling Frequency=24000, Channels=2, Frame size=1322, Samples per frame=1024, Stream duration=0:01:36.767998488 . 0:00:01.076339864 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:420:savs_aac_parser_loop: Set total stream duration to 0:01:36.767998488 0:00:01.077222307 1989 0xaf5c8 INFO GST_EVENT gstevent.c:591:gst_event_new_new_segment_full: creating newsegment update 0, rate 1.000000, format GST_FORMAT_TIME, start 0:00:00.000000000, stop 99:99:99.999999999, position 0:00:00.000000000 *0:00:01.078684857 1989 0xaf5c8 ERROR savsdec_aac gstsavsdecaac.c:345:gst_savsdecaac_sink_event: dropping newsegment event in format (null)* 0:00:01.078852278 1989 0xaf5c8 INFO savs_aacparser savs_aac_parser.c:998:fal_aac_parser_check_and_replenish_cache: Attempting to read 12288 bytes from postion 0 on handle=0x000aefe8 0:00:01.079197646 1989 0xaf5c8 WARN savs_aacparser savs_aac_parser.c:1305:savs_aac_parser_push_frame: failed to push buffer. reason: not-negotiated 0:00:01.079316536 1989 0xaf5c8 ERROR savs_aacparser savs_aac_parser.c:449:savs_aac_parser_loop: Failed to send next aac frame to peer; reason: not-negotiated 0:00:01.079437646 1989 0xaf5c8 WARN savs_aacparser savs_aac_parser.c:490:savs_aac_parser_loop:<savsaacparser0> error: Internal data stream error. 0:00:01.079540584 1989 0xaf5c8 WARN savs_aacparser savs_aac_parser.c:490:savs_aac_parser_loop:<savsaacparser0> error: Streaming stopped, reason not-negotiated 0:00:01.079726911 1989 0xaf5c8 INFO GST_ERROR_SYSTEM gstelement.c:1767:gst_element_message_full:<savsaacparser0> posting message: Internal data stream error. *ERROR: from element /GstPipeline:pipeline0/SavsAacParser:savsaacparser0: Internal data stream error. * Additional debug info: savs_aac_parser.c(490): savs_aac_parser_loop (): /GstPipeline:pipeline0/SavsAacParser:savsaacparser0: Streaming stopped, reason not-negotiated ERROR: pipeline doesn't want to preroll. thanks in advance!! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/gstreamer-embedded/attachments/20100223/2e65a016/attachment.htm>