Record video

[little boy]

This is my pipeline
gst-launch-1.0 v4l2src num-buffers=500 ! 'video/x-raw,width=320,height=240' ! autovideoconvert ! x264enc tune="zerolatency",threads=4 ! qtmux name=mux ! filesink location=test.mp4 filesrc num-buffers=500 location=lin.mp3 ! mad ! audioconvert ! faac ! mux.

There was a problem

New clock: GstSystemClock
Caught SIGSEGV
Spinning.  Please run 'gdb gst-launch-1.0 27666' to continue debugging, Ctrl-C to quit, or Ctrl-\ to dump core

I run:
gdb gst-launch-1.0 27666

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff2ebe700 (LWP 16106)]
__memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:793
793 ../sysdeps/x86_64/multiarch/memcmp-sse4.S: no such file or dictionary.
(gdb) bt
#0  __memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:793
#1  0x00007ffff48c7f2e in x264_cqm_init () from /usr/local/lib/libx264.so.129
#2  0x00007ffff4934b6e in x264_encoder_open_129 ()
   from /usr/local/lib/libx264.so.129
#3  0x00007ffff4e2b963 in gst_x264_enc_init_encoder (
    encoder=encoder@entry=0x7a3b40) at gstx264enc.c:1549
#4  0x00007ffff4e2dd01 in gst_x264_enc_set_format (video_enc=<optimized out>,
    state=<optimized out>) at gstx264enc.c:2006
#5  0x00007ffff54da8c7 in gst_video_encoder_setcaps (caps=0x7fffec014850,
    encoder=0x7a3b40) at gstvideoencoder.c:647
#6  gst_video_encoder_sink_event_default (encoder=0x7a3b40,
    event=0x7fffec004580) at gstvideoencoder.c:944
#7  0x00007ffff7b28756 in gst_pad_send_event_unchecked (
    pad=pad@entry=0x796270, event=event@entry=0x7fffec004580,
    type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5377
#8  0x00007ffff7b28e3b in gst_pad_push_event_unchecked (
    pad=pad@entry=0x79a2d0, event=0x7fffec004580,
    type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5053
#9  0x00007ffff7b293f8 in push_sticky (pad=0x79a2d0, ev=0x7ffff2ebc660,
    user_data=0x7ffff2ebc6c0) at gstpad.c:3651
#10 0x00007ffff7b27482 in events_foreach (pad=pad@entry=0x79a2d0,
    func=func@entry=0x7ffff7b292a0 <push_sticky>,
    user_data=user_data@entry=0x7ffff2ebc6c0) at gstpad.c:590


f 0
#0  __memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:793
793 in ../sysdeps/x86_64/multiarch/memcmp-sse4.S
(gdb) info f
Stack level 0, frame at 0x7ffff2ebbd10:
 rip = 0x7ffff70e3c15 in __memcmp_sse4_1
    (../sysdeps/x86_64/multiarch/memcmp-sse4.S:793); saved rip = 0x7ffff48c7f2e
 called by frame at 0x7ffff2ebbd60
 source language asm.
 Arglist at 0x7ffff2ebbd00, args:
 Locals at 0x7ffff2ebbd00, Previous frame's sp is 0x7ffff2ebbd10
 Saved registers:
  rip at 0x7ffff2ebbd08

Can anyone please help ...

Thanks,
little boy

[Sebastian Dröge-3]

On Di, 2016-03-01 at 21:40 -0800, little boy wrote:
> This is my pipeline
> gst-launch-1.0 v4l2src num-buffers=500 ! 'video/x-raw,width=320,height=240'
> ! autovideoconvert ! x264enc tune="zerolatency",threads=4 ! qtmux name=mux !
> filesink location=test.mp4 filesrc num-buffers=500 location=lin.mp3 ! mad !
> audioconvert ! faac ! mux.

gst-launch-1.0 does not accept the pipeline as is because of the comma.
Which pipeline did you use?

> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7ffff2ebe700 (LWP 16106)]
> __memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:793
> 793 ../sysdeps/x86_64/multiarch/memcmp-sse4.S: 没有那个文件或目录.
> (gdb) bt
> #0  __memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-
> sse4.S:793
> #1  0x00007ffff48c7f2e in x264_cqm_init () from
> /usr/local/lib/libx264.so.129
> #2  0x00007ffff4934b6e in x264_encoder_open_129 ()
>    from /usr/local/lib/libx264.so.129
> #3  0x00007ffff4e2b963 in gst_x264_enc_init_encoder (
>     encoder=encoder@entry=0x7a3b40) at gstx264enc.c:1549

This looks like it could be a problem with libx264 on your system. Try
also with only the video part of the pipeline (without qtmux and going
to a fakesink), with videotestsrc instead of v4l2src, etc.

And running in valgrind is probably also a good idea.

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com


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[little boy]

Thanks you!
There is a problem in libx264.
Look at this:
https://bugs.launchpad.net/ubuntu/+source/x264/+bug/1241772