[FFmpeg-trac] #1980(undetermined:new): ffmpeg process hangs with 100% CPU when getting a live rtsp stream (on redhat linux)

FFmpeg trac at avcodec.org
Fri Nov 30 22:40:16 CET 2012 

#1980: ffmpeg process hangs with 100% CPU when getting a live rtsp stream (on
redhat linux)
--------------------------------+----------------------------------------
             Reporter:  muthuk  |                    Owner:
                 Type:  defect  |                   Status:  new
             Priority:  normal  |                Component:  undetermined
              Version:  1.0     |               Resolution:
             Keywords:  rtsp    |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+----------------------------------------

Comment (by muthuk):

 Replying to [comment:1 cehoyos]:
 > Please test current git head and provide a backtrace.

 Thanks for your quick response.

 I downloaded the current version from (http://ffmpeg.org/releases/ffmpeg-
 snapshot.tar.bz2) and still see the issue after some time (15 minutes or
 so).
 Below are the details,

 Command line is,
 /home/lsadm/test-muthu/newerffmpeg/FFmpeg/bin/ffmpeg -i 'rtsp://xstream-
 bcast-grinder003:50554/sEOrJIzkY7U1S7OYLaNL_A_QVGA+email.share at yahoo.com-
 sEOrJIzkY7U1S7OYLaNL_A_QVGA.sdp' -timelimit 306 -minrate 70k -maxrate
 1400k -map 0 -t 306 -c:v copy -c:a alac -y
 /home/lsadm/StressTest/Outputs/mediaOutput/RTSP_DownStreamer-
 65_sEOrJIzkY7U1S7OYLaNL.mov 2> /home/lsadm/StressTest/Outputs/openRTSPLog
 /RTSP_DownStreamer-65_sEOrJIzkY7U1S7OYLaNL.log


 The generated console (stats) data is,
 [lsadm at grinder025 Scripts]$ cat /home/lsadm/StressTest/Outputs/openRTSPLog
 /RTSP_DownStreamer-65_sEOrJIzkY7U1S7OYLaNL.log
 ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
   built on Nov 30 2012 12:44:30 with gcc 4.1.2 (GCC) 20080704 (Red Hat
 4.1.2-44)
   configuration: --prefix=/home/lsadm/test-muthu/newerffmpeg/FFmpeg/
 --enable-gpl --enable-version3 --enable-nonfree --disable-yasm
   libavutil      52.  9.102 / 52.  9.102
   libavcodec     54. 77.100 / 54. 77.100
   libavformat    54. 39.100 / 54. 39.100
   libavdevice    54.  3.100 / 54.  3.100
   libavfilter     3. 23.104 /  3. 23.104
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.101 /  0. 17.101
   libpostproc    52.  2.100 / 52.  2.100
 [h264 @ 0x1b50e520] Missing reference picture, default is 0
 [h264 @ 0x1b50e520] decode_slice_header error
 [h264 @ 0x1b50e520] concealing 300 DC, 300 AC, 300 MV errors in P frame
 [h264 @ 0x1b50e520] Missing reference picture, default is 14
 [h264 @ 0x1b50e520] RTP: missed 7594 packets
 [h264 @ 0x1b50e520] RTP: missed 7595 packets
 [h264 @ 0x1b50e520] RTP: missed 7596 packets
 [h264 @ 0x1b50e520] RTP: missed 7597 packets
 [h264 @ 0x1b50e520] RTP: missed 7598 packets
 [h264 @ 0x1b50e520] RTP: missed 7599 packets
 [h264 @ 0x1b50e520] RTP: missed 7600 packets
 [h264 @ 0x1b50e520] RTP: missed 7601 packets
 [h264 @ 0x1b50e520] RTP: missed 7602 packets
 [lsadm at grinder025 Scripts]$


 Below is a snapshot of the CPU captured with top command,
 top - 13:37:40 up 52 days,  2:06, 10 users,  load average: 3.51, 5.50,
 4.97
 Tasks: 473 total,   3 running, 470 sleeping,   0 stopped,   0 zombie
 Cpu(s):  3.0%us,  0.3%sy,  0.0%ni, 96.4%id,  0.3%wa,  0.0%hi,  0.0%si,
 0.0%st
 Mem:   6096740k total,  6073196k used,    23544k free,     8528k buffers
 Swap:  1020116k total,   361720k used,   658396k free,  2466924k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 18206 lsadm     25   0 27792 4808 1972 R 99.9  0.1  18:29.11 ffmpeg
 22322 lsadm     25   0 27968 4992 1976 R 99.9  0.1   6:42.93 ffmpeg
 13406 lsadm     15   0 3933m 2.9g 2628 S  3.9 49.3  29:05.40 perl
 23117 lsadm     15   0 28564 4976 2484 S  2.0  0.1   0:00.61 ffmpeg
 23311 lsadm     15   0 28556 4964 2484 S  2.0  0.1   0:00.49 ffmpeg
 23768 lsadm     15   0 11116 1232  684 R  2.0  0.0   0:00.01 top
     1 root      15   0 10344   80   48 S  0.0  0.0   3:56.94 init


 [lsadm at grinder025 Scripts]$ ps -aef | grep 18206
 lsadm    18206 18205 99 13:19 pts/1    00:19:31 /home/lsadm/test-
 muthu/newerffmpeg/FFmpeg/bin/ffmpeg -i rtsp://xstream-bcast-
 grinder003:50554/sEOrJIzkY7U1S7OYLaNL_A_QVGA+email.share at yahoo.com-
 sEOrJIzkY7U1S7OYLaNL_A_QVGA.sdp -timelimit 306 -minrate 70k -maxrate 1400k
 -map 0 -t 306 -c:v copy -c:a alac -y
 /home/lsadm/StressTest/Outputs/mediaOutput/RTSP_DownStreamer-
 65_sEOrJIzkY7U1S7OYLaNL.mov
 lsadm    23831 13531  0 13:38 pts/7    00:00:00 grep 18206

 [lsadm at grinder025 Scripts]$ ps -aef | grep 18205
 lsadm    18205 13406  0 13:19 pts/1    00:00:00 sh -c /home/lsadm/test-
 muthu/newerffmpeg/FFmpeg/bin/ffmpeg -i 'rtsp://xstream-bcast-
 grinder003:50554/sEOrJIzkY7U1S7OYLaNL_A_QVGA+email.share at yahoo.com-
 sEOrJIzkY7U1S7OYLaNL_A_QVGA.sdp' -timelimit 306 -minrate 70k -maxrate
 1400k -map 0 -t 306 -c:v copy -c:a alac -y
 /home/lsadm/StressTest/Outputs/mediaOutput/RTSP_DownStreamer-
 65_sEOrJIzkY7U1S7OYLaNL.mov 2> /home/lsadm/StressTest/Outputs/openRTSPLog
 /RTSP_DownStreamer-65_sEOrJIzkY7U1S7OYLaNL.log
 lsadm    18206 18205 99 13:19 pts/1    00:19:29 /home/lsadm/test-
 muthu/newerffmpeg/FFmpeg/bin/ffmpeg -i rtsp://xstream-bcast-
 grinder003:50554/sEOrJIzkY7U1S7OYLaNL_A_QVGA+email.share at yahoo.com-
 sEOrJIzkY7U1S7OYLaNL_A_QVGA.sdp -timelimit 306 -minrate 70k -maxrate 1400k
 -map 0 -t 306 -c:v copy -c:a alac -y
 /home/lsadm/StressTest/Outputs/mediaOutput/RTSP_DownStreamer-
 65_sEOrJIzkY7U1S7OYLaNL.mov
 lsadm    23799 13531  0 13:38 pts/7    00:00:00 grep 18205
 [lsadm at grinder025 Scripts]$

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1980#comment:2>
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