[FFmpeg-user] rtsp to rtmp error : negative number of zero coeffs at 20 942

[Yannick CHAMPS]

Hi all,

got this error when converting an rtsp stream from an IP camera to rtmp, 
it appears after 1 or 2 mns, you can notice that speed is increased from 
speed=0.972x to speed=14.2x. Using nginx as rtmp server.

Here are the ouputs below.

Thank you for you help.


#ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i 
rtsp://xxx:xxx@yyy.camera.com:7070 -tune zerolatency -vcodec libx264  
-pix_fmt + -c:v libx264 -c:a aac -strict experimental -f flv 
rtmp://localhost/myapp/mystream


ffmpeg version N-85600-g9ef21a8 Copyright (c) 2000-2017 the FFmpeg 
developers
   built with gcc 4.9.2 (Debian 4.9.2-10)
   configuration: --prefix=/root/ffmpeg_build 
--pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include 
--extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl 
--enable-libass --enable-libfreetype --enable-libmp3lame 
--enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx 
--enable-libx264 --enable-nonfree
   libavutil      55. 61.100 / 55. 61.100
   libavcodec     57. 93.100 / 57. 93.100
   libavformat    57. 72.101 / 57. 72.101
   libavdevice    57.  7.100 / 57.  7.100
   libavfilter     6. 85.100 /  6. 85.100
   libswscale      4.  7.101 /  4.  7.101
   libswresample   2.  8.100 /  2.  8.100
   libpostproc    54.  6.100 / 54.  6.100
Input #0, lavfi, from 'anullsrc':
   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Input #1, rtsp, from 'rtsp://admin:papenoo2013@motu.camera.pf:7070':
   Metadata:
     title           : Session streamed by RTP/RTSP server
     comment         : ACTi.COM Streaming Media v
   Duration: N/A, start: 1.397744, bitrate: N/A
     Stream #1:0: Video: h264 (Baseline), yuvj420p(pc, progressive), 
1280x720 [SAR 1:1 DAR 16:9], 4.25 fps, 4.29 tbr, 90k tbn, 8.57 tbc
[tcp @ 0x248ada0] Connection to tcp://localhost:1935 failed (Connection 
refused), trying next address
Stream mapping:
   Stream #1:0 -> #0:0 (h264 (native) -> h264 (libx264))
   Stream #0:0 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[rtsp @ 0x239bcc0] Thread message queue blocking; consider raising the 
thread_queue_size option (current value: 8)
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x23b93e0] using SAR=1/1
[libx264 @ 0x23b93e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 
AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x23b93e0] profile High, level 3.1
[libx264 @ 0x23b93e0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 
2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 
deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 
lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 
bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 
keyint_min=4 scenecut=40 intra_refresh=0 rc=crf mbtree=0 crf=23.0 
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://localhost/myapp/mystream':
   Metadata:
     encoder         : Lavf57.72.101
     Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), 
yuvj420p(pc, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 4.29 
fps, 1k tbn, 4.29 tbc
     Metadata:
       encoder         : Lavc57.93.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, 
stereo, fltp, 128 kb/s
     Metadata:
       encoder         : Lavc57.93.100 aac
Past duration 0.998894 too large
     Last message repeated 2 times
Past duration 0.998894 too large     108kB time=00:00:00.70 
bitrate=1268.1kbits/s dup=0 drop=5 speed=1.38x
     Last message repeated 5 times
Past duration 0.998894 too large     252kB time=00:00:02.09 bitrate= 
985.3kbits/s dup=0 drop=5 speed=   2x
     Last message repeated 5 times
Past duration 0.998894 too large     378kB time=00:00:03.49 bitrate= 
885.6kbits/s dup=0 drop=5 speed= 2.1x
     Last message repeated 7 times
Past duration 0.998894 too large     538kB time=00:00:05.36 bitrate= 
822.8kbits/s dup=0 drop=5 speed=2.35x
     Last message repeated 6 times
Past duration 0.998894 too large     692kB time=00:00:06.99 bitrate= 
810.8kbits/s dup=0 drop=5 speed=2.47x
     Last message repeated 3 times
Past duration 0.998894 too large     804kB time=00:00:07.96 bitrate= 
827.2kbits/s dup=0 drop=5 speed=2.39x
     Last message repeated 2 times
Past duration 0.998894 too large     867kB time=00:00:08.62 bitrate= 
823.5kbits/s dup=0 drop=5 speed= 2.2x
     Last message repeated 1 times
Past duration 0.998894 too large     902kB time=00:00:09.08 bitrate= 
812.9kbits/s dup=0 drop=5 speed=2.02x
     Last message repeated 2 times
Past duration 0.998894 too large    1046kB time=00:00:09.78 bitrate= 
875.7kbits/s dup=0 drop=5 speed=1.89x
     Last message repeated 1 times
Past duration 0.998894 too large    1124kB time=00:00:10.25 bitrate= 
898.0kbits/s dup=0 drop=5 speed=1.72x
     Last message repeated 1 times
Past duration 0.998894 too large    1183kB time=00:00:10.71 bitrate= 
904.5kbits/s dup=0 drop=5 speed=1.61x
     Last message repeated 1 times
Past duration 0.998894 too large    1252kB time=00:00:11.18 bitrate= 
916.7kbits/s dup=0 drop=5 speed=1.57x
     Last message repeated 2 times
Past duration 0.998894 too large    1292kB time=00:00:11.88 bitrate= 
890.8kbits/s dup=0 drop=5 speed=1.53x
     Last message repeated 3 times
Past duration 0.998894 too large    1374kB time=00:00:12.81 bitrate= 
878.4kbits/s dup=0 drop=5 speed=1.52x
     Last message repeated 2 times
Past duration 0.998894 too large    1455kB time=00:00:13.53 bitrate= 
880.5kbits/s dup=0 drop=5 speed=1.51x
     Last message repeated 2 times
Past duration 0.998894 too large    1506kB time=00:00:14.21 bitrate= 
867.9kbits/s dup=0 drop=5 speed=1.49x
     Last message repeated 1 times
Past duration 0.998894 too large    1535kB time=00:00:14.68 bitrate= 
856.7kbits/s dup=0 drop=5 speed=1.44x
     Last message repeated 2 times
Past duration 0.998894 too large    1614kB time=00:00:15.41 bitrate= 
857.7kbits/s dup=0 drop=5 speed=1.45x
     Last message repeated 1 times
Past duration 0.998894 too large    1665kB time=00:00:15.88 bitrate= 
858.6kbits/s dup=0 drop=5 speed=1.42x
     Last message repeated 1 times
Past duration 0.998894 too large    1694kB time=00:00:16.34 bitrate= 
848.8kbits/s dup=0 drop=5 speed= 1.4x
     Last message repeated 1 times
Past duration 0.998894 too large    1743kB time=00:00:16.81 bitrate= 
849.5kbits/s dup=0 drop=5 speed=1.38x
     Last message repeated 1 times
Past duration 0.998894 too large    1772kB time=00:00:17.27 bitrate= 
840.4kbits/s dup=0 drop=5 speed=1.31x
Past duration 0.998894 too large    1772kB time=00:00:17.47 bitrate= 
830.8kbits/s dup=0 drop=5 speed=1.27x
     Last message repeated 2 times
Past duration 0.998894 too large    1852kB time=00:00:18.20 bitrate= 
833.2kbits/s dup=0 drop=5 speed=1.28x
Past duration 0.998894 too large    1852kB time=00:00:18.40 bitrate= 
824.1kbits/s dup=0 drop=5 speed=1.24x
     Last message repeated 3 times
Past duration 0.998894 too large    1932kB time=00:00:19.34 bitrate= 
818.2kbits/s dup=0 drop=5 speed=1.26x
     Last message repeated 1 times
Past duration 0.998894 too large    1983kB time=00:00:19.80 bitrate= 
820.1kbits/s dup=0 drop=5 speed=1.24x
     Last message repeated 2 times
Past duration 0.998894 too large    2077kB time=00:00:20.54 bitrate= 
827.8kbits/s dup=0 drop=5 speed=1.21x
Past duration 0.998894 too large    2077kB time=00:00:20.73 bitrate= 
820.3kbits/s dup=0 drop=5 speed=1.18x
     Last message repeated 1 times
Past duration 0.998894 too large    2128kB time=00:00:21.20 bitrate= 
822.1kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 2 times
Past duration 0.998894 too large    2220kB time=00:00:21.94 bitrate= 
828.7kbits/s dup=0 drop=5 speed=1.17x
     Last message repeated 3 times
Past duration 0.998894 too large    2310kB time=00:00:22.87 bitrate= 
827.5kbits/s dup=0 drop=5 speed=1.19x
     Last message repeated 2 times
Past duration 0.998894 too large    2383kB time=00:00:23.56 bitrate= 
828.3kbits/s dup=0 drop=5 speed=1.19x
Past duration 0.998894 too large    2400kB time=00:00:23.80 bitrate= 
826.1kbits/s dup=0 drop=5 speed=1.17x
     Last message repeated 1 times
Past duration 0.998894 too large    2440kB time=00:00:24.23 bitrate= 
824.9kbits/s dup=0 drop=5 speed=1.17x
     Last message repeated 1 times
Past duration 0.998894 too large    2492kB time=00:00:24.72 bitrate= 
825.6kbits/s dup=0 drop=5 speed=1.16x
Past duration 0.998894 too large    2492kB time=00:00:24.93 bitrate= 
818.8kbits/s dup=0 drop=5 speed=1.14x
     Last message repeated 2 times
Past duration 0.998894 too large    2582kB time=00:00:25.65 bitrate= 
824.4kbits/s dup=0 drop=5 speed=1.15x
     Last message repeated 2 times
Past duration 0.998894 too large    2635kB time=00:00:26.33 bitrate= 
819.8kbits/s dup=0 drop=5 speed=1.15x
     Last message repeated 1 times
Past duration 0.998894 too large    2672kB time=00:00:26.79 bitrate= 
816.9kbits/s dup=0 drop=5 speed=1.15x
     Last message repeated 3 times
Past duration 0.998894 too large    2763kB time=00:00:27.72 bitrate= 
816.4kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 3 times
Past duration 0.998894 too large    2894kB time=00:00:28.70 bitrate= 
826.1kbits/s dup=0 drop=5 speed=1.17x
Past duration 0.998894 too large    2908kB time=00:00:28.93 bitrate= 
823.4kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 2 times
Past duration 0.998894 too large    2945kB time=00:00:29.59 bitrate= 
815.2kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 4 times
Past duration 0.998894 too large    3051kB time=00:00:30.75 bitrate= 
812.7kbits/s dup=0 drop=5 speed=1.18x
     Last message repeated 1 times
Past duration 0.998894 too large    3132kB time=00:00:31.22 bitrate= 
821.6kbits/s dup=0 drop=5 speed=1.17x
     Last message repeated 1 times
Past duration 0.998894 too large    3204kB time=00:00:31.68 bitrate= 
828.4kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 1 times
Past duration 0.998894 too large    3257kB time=00:00:32.18 bitrate= 
829.1kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 2 times
Past duration 0.998894 too large    3321kB time=00:00:32.88 bitrate= 
827.4kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 1 times
Past duration 0.998894 too large    3336kB time=00:00:33.32 bitrate= 
820.3kbits/s dup=0 drop=5 speed=1.15x
     Last message repeated 2 times
Past duration 0.998894 too large    3415kB time=00:00:34.06 bitrate= 
821.3kbits/s dup=0 drop=5 speed=1.16x
     Last message repeated 1 times
Past duration 0.998894 too large   10645kB time=00:01:45.55 bitrate= 
826.2kbits/s dup=0 drop=5 speed= 0.9x
Past duration 0.998894 too large   10681kB time=00:01:45.81 bitrate= 
826.9kbits/s dup=0 drop=5 speed=0.898x
     Last message repeated 1 times
[h264 @ 0x23bb480] negative number of zero coeffs at 25 267 bitrate= 
827.3kbits/s dup=0 drop=5 speed=0.876x
[h264 @ 0x23bb480] error while decoding MB 25 26
[h264 @ 0x23bb480] concealing 1544 DC, 1544 AC, 1544 MV errors in P frame
Past duration 0.998894 too large
fame=  458 fps=2.9 q=17.0 size=   12605kB time=00:33:47.26 bitrate= 
50.9kbits/s dup=0 drop=5 speed=  14.2x
frame=  458 fps=2.9 q=17.0 size=   12633kB time=00:34:16.15 bitrate=  
50.3kbits/s dup=0 drop=5 spee^Came=  458 fps=2.8 q=17.0 size=   13024kB 
time=00:40:58.94 bitrate=  43.4kbits/s dup=0 drop=5 speed=  15x
frame=  458 fps=2.8 q=17.0 size=   13077kB time=00:41:53.74 bitrate=  
42.6kbits/s dup=0 drop=5 spee^Came=  458 fps=2.7 q=17.0 size=   13185kB 
time=00:43:45.06 bitrate=  41.1kbits/s dup=0 drop=5 speed=15.7x
frame=  458 fps=2.7 q=17.0 size=   13212kB time=00:44:12.85 bitrate=  
40.8kbits/s dup=0 drop=5 speeframe=  458 fps=2.7 q=17.0 size=   13265kB 
time=00:45:07.88 bitrate=  40.1kbits/s dup=0 drop=5 speed=16.1x
frame=  458 fps=2.6 q=17.0 size=   13615kB time=00:51:08.05 bitrate=  
36.4kbits/s dup=0 drop=5 speeframe=  458 fps=2.6 q=17.0 size=   13664kB 
time=00:51:59.04 bitrate=  35.9kbits/s dup=0 drop=5 speed=17.7x