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Capture examples crash on Apple Silicon #206
Description
The getting started capture example on a M1 macbook crash:
Processing video library using bundled GStreamer 1.20.3
Scanning GStreamer plugins... Done.
(Processing core video:79461): GStreamer-CRITICAL **: 16:18:26.996: gst_bin_add_many: assertion 'GST_IS_ELEMENT (element_1)' failed
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0xa) at pc=0x000000015c21a944, pid=79461, tid=60435
#
# JRE version: OpenJDK Runtime Environment Temurin-17.0.4+8 (17.0.4+8) (build 17.0.4+8)
# Java VM: OpenJDK 64-Bit Server VM Temurin-17.0.4+8 (17.0.4+8, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, bsd-aarch64)
# Problematic frame:
# C [libgstreamer-1.0.0.dylib+0x9e944] gst_element_link_pads_full+0x74
#
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /var/folders/dl/6khbyrbx22vfbf2s_yjt1zx80000gs/T//hs_err_pid79461.log
#
# If you would like to submit a bug report, please visit:
# https://github.com/adoptium/adoptium-support/issues
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Could not run the sketch (Target VM failed to initialize).
For more information, read Help → Troubleshooting.
but the capture pipeline works fine:
cam = new Capture(this, 640, 480, "pipeline:avfvideosrc device-index=0 ! video/x-raw, width=640, height=480, framerate=30/1");
Activity
[-]Capture examples on Apple Silicon crash[/-][+]Capture examples crash on Apple Silicon[/+]jaegonlee commentedon Sep 5, 2022
I changed these two lines(in initDevicePipeline(), Capture.java)
to
and it works.
codeanticode commentedon Sep 5, 2022
@jaegonlee Great catch, thanks a lot! Out curiosity, what make you think of splitting addMany/linkMany into separate calls? I had a suspicion that the error was somewhere in there, and tried changing the order of the elements (like placing the caps filter at the beginning, since that's what the custom pipeline does) but did not get it to work.
replace addMany/linkMany in Capture by individual add/link calls, fixes