Note, I'm only commenting about the GStreamer side... Le 2014-11-17 12:29, Fabio Estevam a écrit : > Hi, > > I am running linux-next 20141117 on a mx6qsabresd board and trying to > play a mp4 video via Gstreamer 1.4.1, but I am getting the following > error: You should update to latest stable version, this is a general rule. Not keeping track of stable branches is never a good idea. Current stable is 1.4.4. Note that as of today, there is known issue with supporting this driver (not that driver itself, I really mean supporting the driver features): - Need to fix EOS Handling, https://bugzilla.gnome.org/show_bug.cgi?id=733864 - Output size negotiation https://bugzilla.gnome.org/show_bug.cgi?id=733828 - Output pixel format negotiation https://bugzilla.gnome.org/show_bug.cgi?id=733827 - Encoding is not yet supported https://bugzilla.gnome.org/show_bug.cgi?id=728438 First one is the main blocker, but kernel folks will be able to clarify more. Help is of course appreciated. Note that some of the issues kind of lack a specification to accomplished. We recently had a meeting in Dusseldorf to propose solutions. > > root@imx6qsabresd:/mnt/nfs# gst-play-1.0 sample.mp4 > Volume: 100% > Now playing /mnt/nfs/sample.mp4 > [ 506.983809] ------------[ cut here ]------------ > [ 506.988522] WARNING: CPU: 0 PID: 954 at > drivers/media/v4l2-core/videobuf2-core.c:1781 > vb2_start_streaming+0xc4/0x160() > [ 506.999301] Modules linked in: > [ 507.002489] CPU: 0 PID: 954 Comm: multiqueue0:src Tainted: G > W 3.18.0-rc4-next-20141117-dirty #2044 > [ 507.012660] Backtrace: > [ 507.015253] [<80011f44>] (dump_backtrace) from [<800120e0>] > (show_stack+0x18/0x1c) > [ 507.022891] r6:000006f5 r5:00000000 r4:00000000 r3:00000000 > [ 507.028707] [<800120c8>] (show_stack) from [<806b730c>] > (dump_stack+0x88/0xa4) > [ 507.035954] [<806b7284>] (dump_stack) from [<8002a4dc>] > (warn_slowpath_common+0x80/0xbc) > [ 507.044135] r5:804a80a8 r4:00000000 > [ 507.047802] [<8002a45c>] (warn_slowpath_common) from [<8002a53c>] > (warn_slowpath_null+0x24/0x2c) > [ 507.056605] r8:00000000 r7:bd71c640 r6:bd614ef0 r5:bd614ee0 r4:ffffffea > [ 507.063470] [<8002a518>] (warn_slowpath_null) from [<804a80a8>] > (vb2_start_streaming+0xc4/0x160) > [ 507.072293] [<804a7fe4>] (vb2_start_streaming) from [<804a9efc>] > (vb2_internal_streamon+0xfc/0x158) > [ 507.081385] r7:bd71c640 r6:bd6c29ec r5:bd614c00 r4:bd614de0 > [ 507.087133] [<804a9e00>] (vb2_internal_streamon) from [<804ab0a8>] > (vb2_streamon+0x34/0x58) > [ 507.095567] r5:bd614c00 r4:00000002 > [ 507.099231] [<804ab074>] (vb2_streamon) from [<804a3b10>] > (v4l2_m2m_streamon+0x28/0x40) > [ 507.107287] [<804a3ae8>] (v4l2_m2m_streamon) from [<804a3b40>] > (v4l2_m2m_ioctl_streamon+0x18/0x1c) > [ 507.116292] r5:bd9083c8 r4:40045612 > [ 507.120016] [<804a3b28>] (v4l2_m2m_ioctl_streamon) from > [<80492e48>] (v4l_streamon+0x20/0x24) > [ 507.128693] [<80492e28>] (v4l_streamon) from [<80494dc4>] > (__video_do_ioctl+0x24c/0x2e0) > [ 507.136826] [<80494b78>] (__video_do_ioctl) from [<804953a8>] > (video_usercopy+0x118/0x480) > [ 507.145133] r10:00000001 r9:bd6cbe10 r8:74a1164c r7:00000000 > r6:00000000 r5:80494b78 > [ 507.153073] r4:40045612 > [ 507.155632] [<80495290>] (video_usercopy) from [<80495724>] > (video_ioctl2+0x14/0x1c) > [ 507.163408] r10:bd8fccb8 r9:74a1164c r8:bd909064 r7:74a1164c > r6:40045612 r5:bd71c640 > [ 507.171343] r4:bd9083c8 > [ 507.173902] [<80495710>] (video_ioctl2) from [<804918f8>] > (v4l2_ioctl+0x104/0x14c) > [ 507.181512] [<804917f4>] (v4l2_ioctl) from [<800fc944>] > (do_vfs_ioctl+0x80/0x634) > [ 507.189019] r8:00000009 r7:74a1164c r6:00000009 r5:800fcf34 > r4:bd71c640 r3:804917f4 > [ 507.196870] [<800fc8c4>] (do_vfs_ioctl) from [<800fcf34>] > (SyS_ioctl+0x3c/0x60) > [ 507.204203] r10:00000000 r9:bd6ca000 r8:00000009 r7:74a1164c > r6:40045612 r5:bd71c640 > [ 507.212159] r4:bd71c641 > [ 507.214722] [<800fcef8>] (SyS_ioctl) from [<8000ec60>] > (ret_fast_syscall+0x0/0x48) > [ 507.222311] r8:8000ee24 r7:00000036 r6:73c183a0 r5:754248e0 > r4:00000000 r3:00000000 > [ 507.230168] ---[ end trace c3703a604edaf0d0 ]--- Looks like a backtrace of a warning, though I'm not sure I get what this warning is about. Maybe you are missing some information, or one need to look at videobuf2-core.c:178. > ERROR Failed to connect to X display server for file:///mnt/nfs/sample.mp4 You have built glimagesink (hence libgstgl, part of gst-plugins-bad) against X11 but you don't have a X11 display running, or DISPLAY environment isn't set properly. > ERROR debug information: > /code/yocto/dizzy/build/tmp/work/cortexa9hf-vfp-neon-mx6qdl-poky-linux-gnueabi/gstreamer1.0-plugins-bad/1.4.1-r0/gst-plugins-bad-1.4.1/ext/gl/gstglimagesink.c(453): > _ensure_gl_setup (): > /GstPlayBin:playbin/GstPlaySink:playsink/GstBin:vbin/GstGLImageSink:glimagesink0 > GLib (gthread-posix.c): Unexpected error from C library during > 'pthread_mutex_lock': Invalid argument. Aborting. > Aborted This is most likely fixed in stable releases. It's probably a bug in an error path (spurious unlock, or use after free). If not fixed, valgrind would tell us more. Nicolas -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
