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hls stops working: force fragment split #568

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vvidic opened this issue Jan 23, 2015 · 15 comments
Open

hls stops working: force fragment split #568

vvidic opened this issue Jan 23, 2015 · 15 comments

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@vvidic
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vvidic commented Jan 23, 2015

Any idea why this configuration stops working after a few days:

worker_processes 4;
pid /run/nginx.pid;
#error_log  /var/log/nginx/debug.log debug;

events {
     worker_connections 1024;
     multi_accept on;
 }

 rtmp_auto_push on;
 rtmp {
    server {
        listen 1935;

        application student {
            live on;

            hls on;
            hls_path /run/shm/hls-student;

            dash on;
            dash_path /run/shm/dash-student;

            # pull to start hls export
            pull rtmp://lb.av.carnet.hr/student name=one static;
         }
}

2015/01/23 09:22:45 [error] 16433#0: *1 hls: force fragment split: 682283.103 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:22:45 [error] 16433#0: *1 hls: force fragment split: -682275.068 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:22:53 [error] 16433#0: *1 hls: force fragment split: 682275.068 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:22:53 [error] 16433#0: *1 hls: force fragment split: -682267.034 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:01 [error] 16433#0: *1 hls: force fragment split: 682267.034 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:01 [error] 16433#0: *1 hls: force fragment split: -682259.000 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:09 [error] 16433#0: *1 hls: force fragment split: 682259.000 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:09 [error] 16433#0: *1 hls: force fragment split: -682250.943 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:17 [error] 16433#0: *1 hls: force fragment split: 682250.943 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
2015/01/23 09:23:17 [error] 16433#0: *1 hls: force fragment split: -682242.909 sec, , client: lb.av.carnet.hr/student, server: ngx-relay
@mknwebsolutions
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I believe this is the same issue @ #346

@vvidic
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vvidic commented Jan 25, 2015

On Sat, Jan 24, 2015 at 01:42:56PM -0800, Michael Mikhjian wrote:

I believe this is the same issue @ #346

It could be, however I'm using the latest git version (7a35372).
Restarting nginx doesn't help as the errors start appearing right
away. I have to restart the upstream RTMP server to get HLS working
again but this is not very practical for live streams. I have
a capture of the failing RTMP stream so maybe you can use this
to figure out why the HLS generator stops working.

Valentin

@dburianov
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I have it problem too and nginx create more small files about 300-15000 bytes size.

2016/02/14 14:05:53 [error] 952#0: *18459 hls: force fragment split: -78.252 sec, , client: 127.0.0.1, server: 0.0.0.0:1935
2016/02/14 14:05:53 [error] 952#0: *18460 hls: force fragment split: 78.391 sec, , client: 127.0.0.1, server: 0.0.0.0:1935

It work only in this config:
hls on;
hls_path /usr/local/nginx/html/video;
hls_fragment 10s;
hls_playlist_length 60s;
hls_continuous on;
hls_fragment_naming timestamp;
dash off;
dash_path /usr/local/nginx/html/dash;
dash_fragment 15s;
dash_playlist_length 60s;

dash off and dash* present
If I comment or remove dash* in config I have this errors.

Sometimes I have nest errors in ffmpeg logs:

Error while decoding stream #0:1: Invalid data found when processing input
[mpegts @ 0x3868740] PES packet size mismatchme=00:21:51.90 bitrate= 828.8kbits/s speed=0.933x
[mpeg2video @ 0x38db0a0] 00 motion_type at 3 32
[mpeg2video @ 0x38db0a0] 00 motion_type at 6 24
[mpeg2video @ 0x38db0a0] 00 motion_type at 5 25
[mpeg2video @ 0x38db0a0] mb incr damaged
[mpeg2video @ 0x38db0a0] 00 motion_type at 12 27
[mpeg2video @ 0x38db0a0] 00 motion_type at 12 33
[mpeg2video @ 0x38db0a0] 00 motion_type at 4 28
[mpeg2video @ 0x38db0a0] 00 motion_type at 25 34
[mpeg2video @ 0x38db0a0] 00 motion_type at 5 16
[mpeg2video @ 0x38db0a0] 00 motion_type at 26 35
[mpeg2video @ 0x38db0a0] ac-tex damaged at 29 20
[mpeg2video @ 0x38db0a0] 00 motion_type at 4 21
[mpeg2video @ 0x38db0a0] invalid mb type in P Frame at 21 22
[mpeg2video @ 0x38db0a0] 00 motion_type at 2 23
[mpeg2video @ 0x38db0a0] 00 motion_type at 5 8
[mpeg2video @ 0x38db0a0] mb incr damaged
[mpeg2video @ 0x38db0a0] 00 motion_type at 18 9
[mpeg2video @ 0x38db0a0] 00 motion_type at 1 13
[mpeg2video @ 0x38db0a0] 00 motion_type at 15 10
[mpeg2video @ 0x38db0a0] 00 motion_type at 9 14
[mpeg2video @ 0x38db0a0] 00 motion_type at 9 11
[mpeg2video @ 0x38db0a0] 00 motion_type at 2 15
[mpeg2video @ 0x38db0a0] 00 motion_type at 11 7
[mpeg2video @ 0x38db0a0] 00 motion_type at 7 1
[mpeg2video @ 0x38db0a0] mb incr damaged
[mpeg2video @ 0x38db0a0] 00 motion_type at 8 3
[mpeg2video @ 0x38db0a0] 00 motion_type at 1 4
[mpeg2video @ 0x38db0a0] invalid cbp -1 at 2 5
[mpeg2video @ 0x38db0a0] 00 motion_type at 10 6
[mpeg2video @ 0x38db0a0] invalid cbp -1 at 9 7
[mpeg2video @ 0x38db0a0] 00 motion_type at 6 29
[mpeg2video @ 0x38db0a0] ac-tex damaged at 5 30
[mpeg2video @ 0x38db0a0] ac-tex damaged at 9 17
[mpeg2video @ 0x38db0a0] 00 motion_type at 13 31
[mpeg2video @ 0x38db0a0] invalid cbp -1 at 9 19
[mpeg2video @ 0x38db0a0] 00 motion_type at 12 19
[mpeg2video @ 0x38db0a0] Warning MVs not available
[mpeg2video @ 0x38db0a0] concealing 1440 DC, 1440 AC, 1440 MV errors in P frame
[mp2 @ 0x386ad60] Header missing
Error while decoding stream #0:1: Invalid data found when processing input

ffmpeg get mpeg2 stream via http.

Sometimes I have next message:
[libfdk_aac @ 0x388f220] Queue input is backward in time
[flv @ 0x38d2880] Non-monotonous DTS in output stream 0:1; previous: 1437181, current: 1437173; changing to 1437181. This may result in incorrect timestamps in the output file.

but it does not lead to error

nginx 1.9.9
ffmpeg version N-78299-gf021030 - compiling from sources

I use script when monitoring folder and do next:
stop nginx
remove *.ts files with small size
start nginx

@guoyi8
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guoyi8 commented Aug 14, 2016

@dburianov
I also have this problem.
Have you solved it?

@aaronpk
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aaronpk commented Nov 16, 2016

I'm having this problem as well, but only when streaming from Larix Broadcaster on iOS. Streaming from OBS on my Mac works fine.

@alphacentauri82
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i have the same problem. And i have NO IDEA!

@dburianov
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It problem your based on audiocodec
Sometimes it been repaired with change audiocodec or in serials encoding(as enc only video and audio copy and next video copy and audio to aac)

@alphacentauri82
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How do i fix it?. That's the question. I can see the stream just fine but it's jumpy and delayed at times.

@AdySan AdySan mentioned this issue Jun 26, 2017
Closed
@milesegan
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I'm seeing this issue too. Has anyone found a solution?

@campones
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i have this while using an rtmp application that push the original stream toward several servers. starts creating thousands or mini segments

f6aa9ac39d5d0a8340d583c8d91548ed

@dburianov
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Now I use build ffmpeg from source code and do not have this problem
ffmpeg 3.4.2
./configure
--prefix="/usr/ffmpeg_build"
--pkg-config-flags="--static"
--extra-cflags="-I/usr/ffmpeg_build/include"
--extra-ldflags="-L/usr/ffmpeg_build/lib"
--extra-libs="-lpthread -lm"
--bindir="/usr/bin"
--enable-gpl
--enable-libass
--enable-libfdk-aac
--enable-libfreetype
--enable-libmp3lame
--enable-libopus
--enable-libtheora
--enable-libvorbis
--enable-libvpx
--enable-libx264
--enable-libx265
--enable-nonfree
--enable-filter=movie --enable-filter=drawtext --enable-libfreetype --enable-filter=overlay --enable-filter=yadif

@hgshoggins
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hgshoggins commented May 4, 2019 •
edited
Loading

Having the same problem here. @dburianov, do you have an idea about what has changed from your distribution version to your own ffmpeg compilation? I'm using ffmpeg 4.0.4 from Fedora 29.

What happens to me looks like a (I know I'm not using the appropriate words) "desync" with the chunk size or something like that:
2019/05/04 15:25:05 [error] 969#0: *101 hls: force fragment split: 10.007 sec, , client: 127.0.0.1, server: 0.0.0.0:1935 2019/05/04 15:25:15 [error] 969#0: *101 hls: force fragment split: 10.008 sec, , client: 127.0.0.1, server: 0.0.0.0:1935 2019/05/04 15:25:25 [error] 969#0: *101 hls: force fragment split: 10.008 sec, , client: 127.0.0.1, server: 0.0.0.0:1935

@tincho tincho mentioned this issue Nov 30, 2019
Open
@mkrn
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mkrn commented Oct 30, 2020

The issue is happening when the audio and video timestamps are starting from the different start timestamp. This is valid, however the nginx-rtmp library hls splitter does not account for this, taking dts for timestamp and assumes that they have the same start in audio and video.

To fix it I used -vf "setpts=PTS-STARTPTS" -af "asetpts=PTS-STARTPTS" as ffmpeg options.

Note: the nginx-rtmp interleave and sync options may mess around with timestamps even further.

@lve4code
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image

I am facing the same issue. Is there any updated solution to this error?

@IgorDePaula
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Now I use build ffmpeg from source code and do not have this problem ffmpeg 3.4.2 ./configure --prefix="/usr/ffmpeg_build" --pkg-config-flags="--static" --extra-cflags="-I/usr/ffmpeg_build/include" --extra-ldflags="-L/usr/ffmpeg_build/lib" --extra-libs="-lpthread -lm" --bindir="/usr/bin" --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-filter=movie --enable-filter=drawtext --enable-libfreetype --enable-filter=overlay --enable-filter=yadif

You are using ffmpeg fron source, but how, where?

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