[Freeswitch-users] H264 Encoding Error

Seven Du dujinfang at gmail.com
Wed Mar 9 17:31:37 MSK 2016 

x264 api not changed but be more restrict to our fault. I fixed the “Encoding Error -1 “ in the last master. it should work with any x264 version now.  

--  
Seven Du
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On Thursday, March 3, 2016 at 10:40 PM, Seven Du wrote:

> yes, the encoder err is caused by libx264 API change, old x264 version works but I’m not sure the exact version that breaks it.  
>  
> we are working on find out what changed and trying to fix that. hints and patches are welcome.
>  
> If there’s not yet an open jira on this subject, please make one and assign to me.
>  
>  
> and we also working on get ffmpeg 2.6/2.8/3.0 working, there’s a jira assigned to me but I cannot access jira so cannot put the link here atm.
>  
> let me know if anyone has any patch I’d like to review.
>  
>  
> On Thursday, March 3, 2016 at 10:28 AM, 郭秋平 wrote:
>  
> >  This issue is because the client does not send keyframe to FS
> >  
> >  
> >  
> >  
> > > 在 2016年3月2日，下午10:06，郭秋平 <guoqiuping81112 at 163.com (mailto:guoqiuping81112 at 163.com)> 写道：
> > > I found the issue is because of the incorrect version of x264.
> > >  
> > > I use x264-snapshot-20150625-0011-stable , then the issue disappears.
> > > but now libav report another log:
> > > non-existing PPS 0 referenced
> > > decode_slice_header error
> > > non-existing PPS 0 referenced
> > > decode_slice_header error
> > > non-existing PPS 0 referenced
> > > decode_slice_header error
> > > no frame!
> > >  
> > >  
> > > How can I know the exact version of x264 and libav for FreeSWITH 1.6.4
> > >  
> > >  
> > > > 在 2016年3月2日，上午12:23，郭秋平 <guoqiuping81112 at 163.com (mailto:guoqiuping81112 at 163.com)> 写道：
> > > > sorry, my mistake.   my operation system is CentOS 7.1.1503
> > > > > 在 2016年3月2日，上午12:13，Brian West <brian at freeswitch.org (mailto:brian at freeswitch.org)> 写道：
> > > > > You've lost me at "My box is CentOS6.5"
> > > > >  
> > > > > On Tue, Mar 1, 2016 at 3:11 AM, 郭秋平 <guoqiuping81112 at 163.com (mailto:guoqiuping81112 at 163.com)> wrote:
> > > > > > Hi All:
> > > > > >  
> > > > > > My box is CentOS6.5, and FS is 1.6.4
> > > > > >  
> > > > > > When I use H264 as the video codec.
> > > > > > FS report encoding fail as below.
> > > > > >      [ERR] avcodec.c:1117 Encoding Error -1
> > > > > > and x264 report
> > > > > >      lookahead thread is already stopped
> > > > > >  
> > > > > > I checked the source code, I found that
> > > > > > when switch_h264_encode encode is invoked first time, it results that context->got_encoded_output is set to 1.
> > > > > > and after that, if switch_h264_encode is invoked again, it will check context->got_encoded_output , and then pass null frame to avcodec_encode_video2 which will stop the lookahead thread because of the null frame.
> > > > > > switch_h264_encode:
> > > > > > if (*got_output) { // Could be more delayed frames
> > > > > > ret = avcodec_encode_video2(avctx, pkt, NULL, got_output);
> > > > > >  
> > > > > >  
> > > > > > Is it a bug of mod_av or how can i solve the problem?
> > > > > >  
> > > > > > Thanks a lot
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
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> > > > > >  
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> > > > >  
> > > > >  
> > > > > --  
> > > > > Brian West
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> > > > >  
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> > > > >  
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> >  
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