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@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@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@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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_________________________________________________________________________
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