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Bug 727339 - playbin: changing subtitles in MP4 video freezes totem
playbin: changing subtitles in MP4 video freezes totem
Status: RESOLVED DUPLICATE of bug 683504
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
1.x
Other Linux
: Normal major
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
: 728572 (view as bug list)
Depends on:
Blocks:
 
 
Reported: 2014-03-30 11:13 UTC by Michael Monreal
Modified: 2014-05-01 11:25 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Michael Monreal 2014-03-30 11:13:39 UTC 
Changing subtitles in MKV files works fine in totem 3.12. However, changing subtitles (for example: setting to "none") in MP4 files freezes totem. 

It does not matter if playback is paused: if you change the subtitle while paused and then resume playback, it will still freeze after about a second.

My test file (x264 video, aac audio and srt subtitles) was created using MP4Box
Comment 1 Bastien Nocera 2014-03-30 20:05:08 UTC 
Please attach a backtrace of the hang as well as a test file.
Comment 2 Torsten Scholak 2014-04-13 02:41:49 UTC 
steps to reproduce:
1) play some mp4
2) open arbitrary srt file while playing
3) switch to "None"

video hangs. bt:

+ Trace 233467

  • #0 __lll_lock_wait
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S line 135
  • #1 _L_lock_1060
    from /lib64/libpthread.so.0
  • #2 __GI___pthread_mutex_lock
    at pthread_mutex_lock.c line 85
  • #3 gst_play_sink_navigation_send_event
    from /usr/lib64/gstreamer-1.0/libgstplayback.so
  • #4 bacon_video_widget_motion_notify
    from /usr/lib64/libtotem.so.0
  • #5 _gtk_marshal_BOOLEAN__BOXEDv
    at gtkmarshalers.c line 130
  • #6 _g_closure_invoke_va
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/gobject/gclosure.c line 831
  • #7 g_signal_emit_valist
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/gobject/gsignal.c line 3215
  • #8 g_signal_emit
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/gobject/gsignal.c line 3363
  • #9 gtk_widget_event_internal
    at gtkwidget.c line 7228
  • #10 gtk_widget_event
    at gtkwidget.c line 6890
  • #11 propagate_event_up
    at gtkmain.c line 2406
  • #12 propagate_event
    at gtkmain.c line 2514
  • #13 gtk_main_do_event
    at gtkmain.c line 1735
  • #14 gdk_event_source_dispatch
    at gdkeventsource.c line 364
  • #15 g_main_dispatch
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gmain.c line 3064
  • #16 g_main_context_dispatch
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gmain.c line 3663
  • #17 g_main_context_iterate
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gmain.c line 3734
  • #18 g_main_context_iteration
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gmain.c line 3795
  • #19 g_application_run
    at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/gio/gapplication.c line 2114
  • #20 main 






Comment 3


Michael Monreal





          2014-04-13 07:32:56 UTC
        



Thanks Torsten! Sadly I did not have time create a backtrace yet. But what is worth mentioning that I was so far unable to reproduce this on my other system. The systems differ in graphics hardware, the one where I run into this is using the NVidia binary driver.

@Torsten: what graphics hardware and driver were you using?






Comment 4


Bastien Nocera





          2014-04-13 10:52:22 UTC
        



(In reply to comment #2)
> steps to reproduce:
> 1) play some mp4
> 2) open arbitrary srt file while playing
> 3) switch to "None"
> 
> video hangs. bt:

Hmm. This isn't the same bug that was mentioned in comment 1. Comment 1 is clearly about builtin subtitles (built into the video file itself). Your example is about using external subtitles. Furthermore the backtrace only contains one thread, which makes checking where the hang/deadlock might have happened kind of difficult.






Comment 5


Torsten Scholak





          2014-04-14 00:22:20 UTC
        



I'm not so sure that Michael was explicitly talking about built-in subtitles. In any case, what I have found could be well related. Here's a bt of all threads:





+
Trace
    233468






Thread 24
          (Thread 0x7fff73fff700 (LWP 5096))


    

  • 
#0
__lll_lock_wait

    
                at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
                  line
                  135

    

    • 

  • 
#1
_L_lock_1060

    
                from
                /lib64/libpthread.so.0

    

    • 

  • 
#2
__GI___pthread_mutex_lock

    
                at pthread_mutex_lock.c
                  line
                  85

    

    • 

  • 
#3
sinkpad_blocked_cb

    
                from
                /usr/lib64/gstreamer-1.0/libgstplayback.so

    

    • 

  • 
#4
probe_hook_marshal

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#5
g_hook_list_marshal

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/ghook.c
                  line
                  672

    

    • 

  • 
#6
do_probe_callbacks

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#7
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#8
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#9
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#10
gst_selector_pad_chain

    
                from
                /usr/lib64/gstreamer-1.0/libgstcoreelements.so

    

    • 

  • 
#11
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#12
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#13
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#14
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#15
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#16
gst_audio_decoder_push_forward

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#17
gst_audio_decoder_output

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#18
gst_audio_decoder_finish_frame

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#19
gst_faad_handle_frame

    
                at gstfaad.c
                  line
                  799

    

    • 

  • 
#20
gst_audio_decoder_push_buffers

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#21
gst_audio_decoder_chain_forward

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#22
gst_audio_decoder_chain

    
                from
                /usr/lib64/libgstaudio-1.0.so.0

    

    • 

  • 
#23
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#24
gst_base_parse_push_frame

    
                from
                /usr/lib64/libgstbase-1.0.so.0

    

    • 

  • 
#25
gst_base_parse_chain

    
                from
                /usr/lib64/libgstbase-1.0.so.0

    

    • 

  • 
#26
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#27
gst_multi_queue_loop

    
                from
                /usr/lib64/gstreamer-1.0/libgstcoreelements.so

    

    • 

  • 
#28
gst_task_func

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#29
g_thread_pool_thread_proxy

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gthreadpool.c
                  line
                  307

    

    • 

  • 
#30
g_thread_proxy

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gthread.c
                  line
                  764

    

    • 

  • 
#31
start_thread

    
                at pthread_create.c
                  line
                  308

    

    • 

  • 
#32
clone

    
                at ../sysdeps/unix/sysv/linux/x86_64/clone.S
                  line
                  113

    

    • 



Thread 13
          (Thread 0x7fffaa191700 (LWP 5085))


    

  • 
#0
__lll_lock_wait

    
                at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
                  line
                  135

    

    • 

  • 
#1
_L_lock_1060

    
                from
                /lib64/libpthread.so.0

    

    • 

  • 
#2
__GI___pthread_mutex_lock

    
                at pthread_mutex_lock.c
                  line
                  85

    

    • 

  • 
#3
gst_pad_activate_mode

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#4
gst_pad_set_active

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#5
gst_stream_synchronizer_release_pad

    
                from
                /usr/lib64/gstreamer-1.0/libgstplayback.so

    

    • 

  • 
#6
sinkpad_blocked_cb

    
                from
                /usr/lib64/gstreamer-1.0/libgstplayback.so

    

    • 

  • 
#7
probe_hook_marshal

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#8
g_hook_list_marshal

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/ghook.c
                  line
                  672

    

    • 

  • 
#9
do_probe_callbacks

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#10
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#11
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#12
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#13
gst_selector_pad_chain

    
                from
                /usr/lib64/gstreamer-1.0/libgstcoreelements.so

    

    • 

  • 
#14
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#15
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#16
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#17
gst_proxy_pad_chain_default

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#18
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#19
gst_video_decoder_clip_and_push_buf

    
                from
                /usr/lib64/libgstvideo-1.0.so.0

    

    • 

  • 
#20
gst_video_decoder_finish_frame

    
                from
                /usr/lib64/libgstvideo-1.0.so.0

    

    • 

  • 
#21
gst_ffmpegviddec_video_frame

    
                from
                /usr/lib64/gstreamer-1.0/libgstlibav.so

    

    • 

  • 
#22
gst_ffmpegviddec_frame

    
                from
                /usr/lib64/gstreamer-1.0/libgstlibav.so

    

    • 

  • 
#23
gst_ffmpegviddec_handle_frame

    
                from
                /usr/lib64/gstreamer-1.0/libgstlibav.so

    

    • 

  • 
#24
gst_video_decoder_decode_frame

    
                from
                /usr/lib64/libgstvideo-1.0.so.0

    

    • 

  • 
#25
gst_video_decoder_chain_forward

    
                from
                /usr/lib64/libgstvideo-1.0.so.0

    

    • 

  • 
#26
gst_video_decoder_chain

    
                from
                /usr/lib64/libgstvideo-1.0.so.0

    

    • 

  • 
#27
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#28
gst_base_transform_chain

    
                from
                /usr/lib64/libgstbase-1.0.so.0

    

    • 

  • 
#29
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#30
gst_base_parse_push_frame

    
                from
                /usr/lib64/libgstbase-1.0.so.0

    

    • 

  • 
#31
gst_base_parse_chain

    
                from
                /usr/lib64/libgstbase-1.0.so.0

    

    • 

  • 
#32
gst_pad_push_data

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#33
gst_multi_queue_loop

    
                from
                /usr/lib64/gstreamer-1.0/libgstcoreelements.so

    

    • 

  • 
#34
gst_task_func

    
                from
                /usr/lib64/libgstreamer-1.0.so.0

    

    • 

  • 
#35
g_thread_pool_thread_proxy

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gthreadpool.c
                  line
                  307

    

    • 

  • 
#36
g_thread_proxy

    
                at /var/tmp/portage/dev-libs/glib-2.40.0/work/glib-2.40.0/glib/gthread.c
                  line
                  764

    

    • 

  • 
#37
start_thread

    
                at pthread_create.c
                  line
                  308

    

    • 

  • 
#38
clone

    
                at ../sysdeps/unix/sysv/linux/x86_64/clone.S
                  line
                  113

    

    • 








i run a freshly caught totem from git on gnome 3.12 with gstreamer 1.2.3.

@michael, i run intel hd 4000 graphics






Comment 6


Bastien Nocera





          2014-04-25 08:58:33 UTC
        



*** Bug 728572 has been marked as a duplicate of this bug. ***






Comment 7


Tim-Philipp Müller





          2014-04-25 22:31:05 UTC
        



Has anyone tried this with git? I haven't seen this for a while, I thought it got fixed some time ago, but not sure if it was picked into 1.2.






Comment 8


Sebastian Dröge (slomo)





          2014-05-01 11:25:33 UTC
        



I think the second trace in comment 5 is a duplicate of bug #683504 , which is fixed in 1.2.4. The first trace only contains one thread but we would need all.

Closing as a duplicate for now unless someone can reproduce with 1.2.4 and/or git master.

*** This bug has been marked as a duplicate of bug 683504 ***