Initial investigation points to some fine tuning in the `typefind` element:
The test file that mopidy generates (single line) is detected as a subtitle format: ``` $ GST_DEBUG=typefind*:5 gst-launch-1.0 filesrc location=/home/marc/Development/salsa/mopidy/.pybuild/cpython3_3.13/build/tests/data/scanner/plain.txt ! typefind ! fakesink dump=0 0:00:00.008654079 44667 44667 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query caps 0:00:00.008670771 44667 44667 DEBUG typefind gsttypefindelement.c:419:gst_type_find_handle_src_query:<typefindelement0> Got caps query, our caps are (NULL) 0:00:00.008685844 44667 44667 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query caps 0:00:00.008688759 44667 44667 DEBUG typefind gsttypefindelement.c:419:gst_type_find_handle_src_query:<typefindelement0> Got caps query, our caps are (NULL) Setting pipeline to PAUSED ... Pipeline is PREROLLING ... 0:00:00.009315864 44667 44669 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query uri 0:00:00.009340142 44667 44669 DEBUG typefind gsttypefindelement.c:1114:gst_type_find_element_loop:<typefindelement0> Pushing STREAM_START 0:00:00.009355903 44667 44669 DEBUG typefind gsttypefindelement.c:1128:gst_type_find_element_loop:<typefindelement0> find type in pull mode 0:00:00.009367582 44667 44669 DEBUG typefind gsttypefindelement.c:823:gst_type_find_get_extension:<typefindelement0> finding extension of file:///home/marc/Development/salsa/mopidy/.pybuild/cpython3_3.13/build/tests/data/scanner/plain.txt 0:00:00.009396859 44667 44669 DEBUG typefind gsttypefindelement.c:846:gst_type_find_get_extension:<typefindelement0> found extension txt 0:00:00.015174636 44667 44669 DEBUG typefind gsttypefindelement.c:1169:gst_type_find_element_loop: Found caps (NULL) 0:00:00.015183905 44667 44669 DEBUG typefind gsttypefindelement.c:1179:gst_type_find_element_loop: Trying to guess using extension 0:00:00.015190564 44667 44669 DEBUG typefind gsttypefindelement.c:823:gst_type_find_get_extension:<typefindelement0> finding extension of file:///home/marc/Development/salsa/mopidy/.pybuild/cpython3_3.13/build/tests/data/scanner/plain.txt 0:00:00.015199078 44667 44669 DEBUG typefind gsttypefindelement.c:846:gst_type_find_get_extension:<typefindelement0> found extension txt 0:00:00.015330116 44667 44669 DEBUG typefind gsttypefindelement.c:1192:gst_type_find_element_loop: Emitting found caps application/x-subtitle 0:00:00.015339495 44667 44669 INFO typefind gsttypefindelement.c:183:gst_type_find_element_have_type:<typefindelement0> found caps application/x-subtitle, probability=100 Pipeline is PREROLLED ... Setting pipeline to PLAYING ... 0:00:00.015608737 44667 44667 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query latency Redistribute latency... 0:00:00.015698777 44667 44667 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query latency New clock: GstSystemClock Got EOS from element "pipeline0". Execution ended after 0:00:00.000245248 Setting pipeline to NULL ... Freeing pipeline ... ``` While a longer text format is detected as text: ``` $ GST_DEBUG=typefind*:5 gst-launch-1.0 filesrc location=/home/marc/vivotek-bug.txt ! typefind ! fakesink dump=0 0:00:00.008476834 44713 44713 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query caps 0:00:00.008488294 44713 44713 DEBUG typefind gsttypefindelement.c:419:gst_type_find_handle_src_query:<typefindelement0> Got caps query, our caps are (NULL) 0:00:00.008494098 44713 44713 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query caps 0:00:00.008497422 44713 44713 DEBUG typefind gsttypefindelement.c:419:gst_type_find_handle_src_query:<typefindelement0> Got caps query, our caps are (NULL) Setting pipeline to PAUSED ... Pipeline is PREROLLING ... 0:00:00.009285388 44713 44715 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query uri 0:00:00.009322194 44713 44715 DEBUG typefind gsttypefindelement.c:1114:gst_type_find_element_loop:<typefindelement0> Pushing STREAM_START 0:00:00.009344733 44713 44715 DEBUG typefind gsttypefindelement.c:1128:gst_type_find_element_loop:<typefindelement0> find type in pull mode 0:00:00.009361943 44713 44715 DEBUG typefind gsttypefindelement.c:823:gst_type_find_get_extension:<typefindelement0> finding extension of file:///home/marc/vivotek-bug.txt 0:00:00.009392056 44713 44715 DEBUG typefind gsttypefindelement.c:846:gst_type_find_get_extension:<typefindelement0> found extension txt 0:00:00.016466129 44713 44715 DEBUG typefind gsttypefindelement.c:1169:gst_type_find_element_loop: Found caps text/plain 0:00:00.016472763 44713 44715 DEBUG typefind gsttypefindelement.c:1192:gst_type_find_element_loop: Emitting found caps text/plain 0:00:00.016482456 44713 44715 INFO typefind gsttypefindelement.c:183:gst_type_find_element_have_type:<typefindelement0> found caps text/plain, probability=85 Pipeline is PREROLLED ... Setting pipeline to PLAYING ... 0:00:00.016683200 44713 44713 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query latency Redistribute latency... 0:00:00.016720517 44713 44713 DEBUG typefind gsttypefindelement.c:409:gst_type_find_handle_src_query:<typefindelement0> Handling src query latency New clock: GstSystemClock Got EOS from element "pipeline0". Execution ended after 0:00:00.000107546 Setting pipeline to NULL ... Freeing pipeline ... ``` When a longer text is added, the test succeeds. I suggest updating the test in Mopidy to provide a more relevant text input.
