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  • FFmpeg RTSP crash

    19 septembre 2016, par bot1131357

    I am trying to rtsp stream between two consoles on my computer.

    On console 1 I have :

    ffmpeg -rtbufsize 100M -re -f dshow -s 320x240 -i video="BisonCam, NB Pro" -r 10 -an -f rtsp -rtsp_transport tcp rtsp://127.0.0.1:8554/demo

    On console 2 I have :

    ffplay -rtsp_flags listen -i rtsp://127.0.0.1:8554/demo

    When I run execute both commands, my webcam LED lights up. But then immediately after ffmpeg crashes. Has anyone encountered the same thing ? I could really use some help here.

    This is my ffmpeg configuration on a Windows 10 machine :

    ffmpeg version N-81391-g2a3720b Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55. 29.100 / 55. 29.100
    
  libavcodec     57. 54.100 / 57. 54.100
    
  libavformat    57. 47.101 / 57. 47.101
    
  libavdevice    57.  0.102 / 57.  0.102
    
  libavfilter     6. 52.100 /  6. 52.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Hyper fast Audio and Video encoder
    
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
    

    
Use -h to get full help or, even better, run 'man ffmpeg'

    Update

    I tried to stream from a video file, just to be sure that the issue is not related to the webcam.

    #Console 1
    
ffmpeg -i out.mp4 -f rtsp -rtsp_transport tcp rtsp://localhost:8888/live.sdp
    

    
#Console 2
    
ffplay -rtsp_flags listen rtsp://localhost:8888/live.sdp?tcp

    The output for both consoles are as follows :

    Console 1 :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
  Duration: 00:01:02.57, start: 0.000000, bitrate: 172 kb/s
    
    Stream #0:0(und): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p, 320x240, 169 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
[rtsp @ 00000000024c1700] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
Output #0, rtsp, to 'rtsp://localhost:8888/live.sdp':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
    Stream #0:0(und): Video: mpeg4, yuv420p, 320x240, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.54.100 mpeg4
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
    
Press [q] to stop, [?] for help

    Console 2 :

    [rtsp @ 00000000001ccde0] WARNING: Path /live.sdp differs from expected /live.sdp?tcp
    
    Last message repeated 1 times
    
[rtsp @ 00000000001ccde0] Updating control URI to rtsp://localhost:8888/live.sdp
    
[rtsp @ 00000000001ccde0] Could not find codec parameters for stream 0 (Video: mpeg4 (Simple Profile), none, 320x240 [SAR 1:1 DAR 4:3]): unspecified pixel format
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, rtsp, from 'rtsp://localhost:8888/live.sdp?tcp':
    
  Metadata:
    
    title           : No Name
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: mpeg4 (Simple Profile), none, 320x240 [SAR 1:1 DAR 4:3], 30 tbr, 90k tbn, 30 tbc
    
    nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0

    The same crash happened with ffmpeg.exe, and ffplay continued waiting for data. I tried the same commands on a Linux virtual machine, and it worked fine.

    Any ideas ?

    Update

    Here’s what I’ve got from gdb :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
  Duration: 00:01:02.57, start: 0.000000, bitrate: 172 kb/s
    
    Stream #0:0(und): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p, 320x240, 169 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
[New Thread 15408.0x3f28]
    
[New Thread 15408.0x86c]
    
[New Thread 15408.0x23c8]
    
[New Thread 15408.0xf48]
    
[New Thread 15408.0x354c]
    
[New Thread 15408.0xf24]
    
[New Thread 15408.0x1e4c]
    
[New Thread 15408.0x257c]
    
[New Thread 15408.0x22a4]
    
[New Thread 15408.0xc88]
    
[New Thread 15408.0x40bc]
    
[New Thread 15408.0x1520]
    
[New Thread 15408.0x2584]
    
[New Thread 15408.0x1a64]
    
[New Thread 15408.0x3934]
    
[New Thread 15408.0x4010]
    
[New Thread 15408.0x3d28]
    
[New Thread 15408.0x288c]
    
[New Thread 15408.0x1e50]
    
[New Thread 15408.0x630]
    
[New Thread 15408.0x4128]
    
[New Thread 15408.0x3fa0]
    
[New Thread 15408.0x20ec]
    
[New Thread 15408.0x4bcc]
    
[New Thread 15408.0x17b4]
    
[New Thread 15408.0x1204]
    
[New Thread 15408.0x2dc8]
    
[rtsp @ 0000000000e458e0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
[New Thread 15408.0x1d14]
    
Output #0, rtsp, to 'rtsp://localhost:8888/live.sdp':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
    Stream #0:0(und): Video: mpeg4, yuv420p, 320x240, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.54.100 mpeg4
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
    
Press [q] to stop, [?] for help
    

    
Program received signal SIGSEGV, Segmentation fault.
    
0x00007ff82d95292f in avpriv_mpegts_parse_close () from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll

    And the backtrace :

    (gdb) bt
    
#0  0x00007ff82d95292f in avpriv_mpegts_parse_close () from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#1  0x00007ff82d956a1b in avformat-57!av_get_output_timestamp () from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#2  0x00007ff82d9a5dbe in ff_rtsp_parse_line () from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#3  0x00007ff82d955e6d in avformat-57!av_interleaved_write_frame () from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#4  0x000000014001af78 in ?? ()
    
#5  0x000000014001bda9 in ?? ()
    
#6  0x000000014001e642 in ?? ()
    
#7  0x00000001400201f1 in ?? ()
    
#8  0x000000014004bd47 in ?? ()
    
#9  0x00000001400013ed in ?? ()
    
#10 0x000000014000152b in ?? ()
    
#11 0x00007ff85e2b8102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#12 0x00007ff85edac264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#13 0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    
(gdb)

    Update 2

    Here’s using ffmpeg_g.exe

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
  Duration: 00:01:02.57, start: 0.000000, bitrate: 172 kb/s
    
    Stream #0:0(und): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p, 320x240, 169 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
[New Thread 14052.0x3560]
    
[New Thread 14052.0x24b4]
    
[New Thread 14052.0x3554]
    
[New Thread 14052.0x1a3c]
    
[New Thread 14052.0x2e64]
    
[New Thread 14052.0xd0c]
    
[New Thread 14052.0x29e4]
    
[New Thread 14052.0x3724]
    
[New Thread 14052.0x36f8]
    
[New Thread 14052.0x36f0]
    
[New Thread 14052.0x78]
    
[New Thread 14052.0x1578]
    
[New Thread 14052.0x36a0]
    
[New Thread 14052.0x3688]
    
[New Thread 14052.0x369c]
    
[New Thread 14052.0x1f84]
    
[New Thread 14052.0x2094]
    
[New Thread 14052.0x2f14]
    
[New Thread 14052.0x2c54]
    
[New Thread 14052.0x3624]
    
[New Thread 14052.0x2d44]
    
[New Thread 14052.0x3424]
    
[New Thread 14052.0x1dd4]
    
[New Thread 14052.0x20c4]
    
[New Thread 14052.0x34d8]
    
[New Thread 14052.0x34e4]
    
[New Thread 14052.0x3528]
    
[rtsp @ 0000000000f75a80] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
[New Thread 14052.0x3564]
    
Output #0, rtsp, to 'rtsp://localhost:8888/live.sdp':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.47.101
    
    Stream #0:0(und): Video: mpeg4, yuv420p, 320x240, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.54.100 mpeg4
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
    
Press [q] to stop, [?] for help
    

    
Program received signal SIGSEGV, Segmentation fault.
    
0x00007ffeecd8292f in avpriv_mpegts_parse_close ()
    
   from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
(gdb) bt
    
#0  0x00007ffeecd8292f in avpriv_mpegts_parse_close ()
    
   from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#1  0x00007ffeecd86a1b in avformat-57!av_get_output_timestamp ()
    
   from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#2  0x00007ffeecdd5dbe in ff_rtsp_parse_line ()
    
   from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#3  0x00007ffeecd85e6d in avformat-57!av_interleaved_write_frame
    
    ()
    
   from E:\Dev\Library\ffmpeg-20160819-2a3720b-win64-shared\bin\avformat-57.dll
    
#4  0x000000014001af78 in ?? ()
    
#5  0x000000014001bda9 in ?? ()
    
#6  0x000000014001e642 in ?? ()
    
#7  0x00000001400201f1 in ?? ()
    
#8  0x000000014004bd47 in ?? ()
    
#9  0x00000001400013ed in ?? ()
    
---Type <return> to continue, or q <return> to quit---  
    
</return></return>

    Update 3

    After building my own ffmpeg using the --enable-debug flag, I’m back at it again. Still getting the same error though. Any ideas ? At this point, it seems like there’s something wrong with my computer settings.

    ffmpeg version N-81392-ga453bbb Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.3.1 (GCC) 20160211
    
  configuration: --prefix=/home/ytan/Dev/build-mingw/ffmpeg/ --enable-cross-compile --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw64 --pkg-config-flags=--static --enable-shared --disable-static --enable-libvpx --enable-libvorbis --enable-libmp3lame --enable-openssl --enable-pic --enable-debug --extra-ldlibflags='-static -pthread'
    
  libavutil      55. 29.100 / 55. 29.100
    
  libavcodec     57. 54.100 / 57. 54.100
    
  libavformat    57. 47.101 / 57. 47.101
    
  libavdevice    57.  0.102 / 57.  0.102
    
  libavfilter     6. 52.100 /  6. 52.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
[New Thread 6352.0x1e6c]
    
[New Thread 6352.0x12fc]
    
[New Thread 6352.0x1f70]
    
[New Thread 6352.0x17b0]
    
[New Thread 6352.0xdac]
    
Input #0, dshow, from 'video=BisonCam, NB Pro':
    
  Duration: N/A, start: 377578.440000, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
    
[New Thread 6352.0x544]
    
[New Thread 6352.0x1d00]
    
[New Thread 6352.0x1f14]
    
[New Thread 6352.0x1bb0]
    
[New Thread 6352.0xf08]
    
[New Thread 6352.0x7c8]
    
[New Thread 6352.0x12d0]
    
[New Thread 6352.0x504]
    
[New Thread 6352.0x1a74]
    
[libvpx @ 0000000002f0dc40] v1.6.0-384-g4a25b59
    
[rtsp @ 0000000002f0aac0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
[New Thread 6352.0x11dc]
    
Output #0, rtsp, to 'rtsp://127.0.0.1:8554/demo':
    
  Metadata:
    
    encoder         : Lavf57.47.101
    
    Stream #0:0: Video: vp8 (libvpx), yuv420p, 320x240, q=-1--1, 100 kb/s, 10 fps, 90k tbn, 10 tbc
    
    Metadata:
    
      encoder         : Lavc57.54.100 libvpx
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> vp8 (libvpx))
    
Press [q] to stop, [?] for help
    

    
Program received signal SIGSEGV, Segmentation fault.
    
0x00007ff894fd08af in avpriv_mpegts_parse_close () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
(gdb) bt
    
#0  0x00007ff894fd08af in avpriv_mpegts_parse_close () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#1  0x00007ff894fd499b in avformat-57!av_get_output_timestamp () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#2  0x00007ff89502dbae in ff_rtsp_parse_line () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#3  0x00007ff894fd3ded in avformat-57!av_interleaved_write_frame () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#4  0x000000014001ab18 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    
(gdb) thread apply all bt
    

    
Thread 19 (Thread 6352.0x11dc):
    
#0  0x00007ff8c4804e74 in ntdll!ZwRemoveIoCompletion () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c0663e49 in Tcpip4_WSHStringToAddress () from C:\Windows\system32\mswsock.dll
    
#2  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#3  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#4  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 18 (Thread 6352.0x1a74):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 17 (Thread 6352.0x504):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
---Type <return> to continue, or q <return> to quit---
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 16 (Thread 6352.0x12d0):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 15 (Thread 6352.0x7c8):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
---Type <return> to continue, or q <return> to quit---
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 14 (Thread 6352.0xf08):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 13 (Thread 6352.0x1bb0):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
---Type <return> to continue, or q <return> to quit---
    
Thread 12 (Thread 6352.0x1f14):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 11 (Thread 6352.0x1d00):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 10 (Thread 6352.0x544):
    
#0  0x00007ff8c4808404 in ntdll!ZwWaitForAlertByThreadId () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c47c7810 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
    
---Type <return> to continue, or q <return> to quit---
    
#2  0x00007ff8c0e2bb47 in SleepConditionVariableCS () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff896f59420 in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#4  0x00007ff896f5935f in avfilter_graph_parse_ptr () from E:\Dev\Library\ffmpeg\bin\avfilter-6.dll
    
#5  0x00007ff8c38ab097 in msvcrt!_beginthreadex () from C:\Windows\system32\msvcrt.dll
    
#6  0x00007ff8c38ab16c in msvcrt!_endthreadex () from C:\Windows\system32\msvcrt.dll
    
#7  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#8  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#9  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 9 (Thread 6352.0xdac):
    
#0  0x00007ff8c48058a4 in ntdll!ZwWaitForMultipleObjects () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c0e53b2f in WaitForMultipleObjectsEx () from C:\Windows\system32\KernelBase.dll
    
#2  0x00007ff8a2d4428b in ksproxy!DllUnregisterServer () from C:\Windows\System32\ksproxy.ax
    
#3  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#4  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#5  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 8 (Thread 6352.0x17b0):
    
#0  0x00007ff8c4804dd4 in ntdll!ZwWaitForSingleObject () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c0e2aadf in WaitForSingleObjectEx () from C:\Windows\system32\KernelBase.dll
    
#2  0x00007ff8a2d5a8bb in ksproxy!KsResolveRequiredAttributes () from C:\Windows\System32\ksproxy.ax
    
#3  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#4  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#5  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 7 (Thread 6352.0x1f70):
    
---Type <return> to continue, or q <return> to quit---
    
#0  0x00007ff8c4804dd4 in ntdll!ZwWaitForSingleObject () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c0e2aadf in WaitForSingleObjectEx () from C:\Windows\system32\KernelBase.dll
    
#2  0x00007ff896241b63 in ?? () from C:\Windows\System32\quartz.dll
    
#3  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#4  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#5  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 6 (Thread 6352.0x12fc):
    
#0  0x00007ff8c48058a4 in ntdll!ZwWaitForMultipleObjects () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c0e53b2f in WaitForMultipleObjectsEx () from C:\Windows\system32\KernelBase.dll
    
#2  0x00007ff8c0e53a2e in WaitForMultipleObjects () from C:\Windows\system32\KernelBase.dll
    
#3  0x00007ff8a2d5b312 in ksproxy!KsResolveRequiredAttributes () from C:\Windows\System32\ksproxy.ax
    
#4  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#5  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#6  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 5 (Thread 6352.0x1e6c):
    
#0  0x00007ff8c32a1f74 in USER32!InvalidateRect () from C:\Windows\system32\user32.dll
    
#1  0x00007ff8c3292e15 in USER32!GetMessageW () from C:\Windows\system32\user32.dll
    
#2  0x00007ff89628ac1d in QUARTZ!AMGetErrorTextW () from C:\Windows\System32\quartz.dll
    
#3  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#4  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#5  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 4 (Thread 6352.0x1a7c):
    
#0  0x00007ff8c4808464 in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\Windows\SYSTEM32\ntdll.dll
    
---Type <return> to continue, or q <return> to quit---
    
#1  0x00007ff8c478b2e8 in ntdll!RtlAcquireSRWLockShared () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#3  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#4  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 3 (Thread 6352.0x13b0):
    
#0  0x00007ff8c4808464 in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c478b2e8 in ntdll!RtlAcquireSRWLockShared () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#3  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#4  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 2 (Thread 6352.0x214c):
    
#0  0x00007ff8c4808464 in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\Windows\SYSTEM32\ntdll.dll
    
#1  0x00007ff8c478b2e8 in ntdll!RtlAcquireSRWLockShared () from C:\Windows\SYSTEM32\ntdll.dll
    
#2  0x00007ff8c3e58102 in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
    
#3  0x00007ff8c47bc264 in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
    
#4  0x0000000000000000 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    

    
Thread 1 (Thread 6352.0xc70):
    
#0  0x00007ff894fd08af in avpriv_mpegts_parse_close () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#1  0x00007ff894fd499b in avformat-57!av_get_output_timestamp () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#2  0x00007ff89502dbae in ff_rtsp_parse_line () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#3  0x00007ff894fd3ded in avformat-57!av_interleaved_write_frame () from E:\Dev\Library\ffmpeg\bin\avformat-57.dll
    
#4  0x000000014001ab18 in ?? ()
    
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
    
</return></return></return></return></return></return></return></return></return></return></return></return>

  • segmentation fault at av_frame_get_side_data

    23 mai 2016, par user273653

    When I executed the following code :

    AVFrame tmp = frames_video1[k]; //AVFrame frames_video1[]
    
AVFrame *avf1 = &amp;tmp;
    
AVFrameSideData* avfsd1=NULL;
    
if(avf1->side_data != NULL)
    
    printf("avf1->side_data is not NULL!!...........\n");
    
avfsd1 = av_frame_get_side_data(avf1, AV_FRAME_DATA_MOTION_VECTORS);

    I came across segmentation fault happened at av_frame_get_side_data(avf1, AV_FRAME_DATA_MOTION_VECTORS) :

    avf1->side_data is not NULL!!...........
    
Segmentation fault (core dumped)

    why ?

  • Convert MPEG4 to MPEGTS on Android with FFmpeg

    3 juin 2013, par Ardoramor

    Ok, so obviously I know very little to none about ffmpeg API when I made the original post... it is quite overwhelming when one starts learning about digital media and conversion details. After reading quite a bit more and going through ffmpeg source, I was able to get a working output from mp4 to mpegts. The concept is similar to executing :

    ffmpeg -i in.mp4 -vcodec copy -acodec copy -vbsf h264_mp4toannexb out.ts

    But as I mentioned before, I need to implement it with ffmpeg API in C.

    So, although I am able to generate a playable .ts file, its video and audio streams are not synced. That is, playing them back on Android tablet plays the video very slowly while audio is playing at normal speed and then (once audio stream ends) video plays at normal speed to the end. Playing the same generated .ts file in VLC produces a very condensed audio (as though fast-forwarded) and plays video fine.

    There are still many aspects of media conversion that I am not familiar with. I am sure that some of them prevent me from successful conversion.

    Here is some information (via ffprobe) about the files :
    - in.mp4 - file generated via Android recording - MPEG4 (H.264 + AAC)
    - ffmpeg.ts - file generated via ffmpeg conversion - MPEG2TS (H.264 + AAC)
    - out.ts - file generated via my code - MPEGTS (H.264 + AAC)

    in.mp4

    filename=in.mp4
    
nb_streams=2
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime/MPEG-4/Motion JPEG 2000 format
    
start_time=0:00:00.000000
    
duration=0:00:09.961383
    
size=4.730 Mibyte
    
bit_rate=3.983 Mbit/s
    
TAG:major_brand=isom
    
TAG:minor_version=0
    
TAG:compatible_brands=isom3gp4
    
TAG:creation_time=2013-05-28 17:06:57

    ffmpeg.ts

    filename=ffmpeg.ts
    
nb_streams=2
    
format_name=mpegts
    
format_long_name=MPEG-2 transport stream format
    
start_time=0:00:01.400000
    
duration=0:00:09.741267
    
size=5.132 Mibyte
    
bit_rate=4.419 Mbit/s

    out.ts

    filename=out.ts
    
nb_streams=2
    
format_name=mpegts
    
format_long_name=MPEG-2 transport stream format
    
start_time=0:00:00.000000
    
duration=0:00:09.741267
    
size=5.166 Mibyte
    
bit_rate=4.449 Mbit/s

    Firstly, I was unable to affect my output file's start_time. Next, upon examining the -show_packets output of probe, I saw the following :

    ffmpeg.ts

    [PACKET]
    
codec_type=video
    
stream_index=0
    
pts=N/A
    
pts_time=N/A
    
dts=N/A
    
dts_time=N/A
    
duration=0
    
duration_time=0:00:00.000000
    
size=20.506 Kibyte
    
pos=564
    
flags=K
    
[/PACKET]
    
[PACKET]
    
codec_type=video
    
stream_index=0
    
pts=N/A
    
pts_time=N/A
    
dts=N/A
    
dts_time=N/A
    
duration=0
    
duration_time=0:00:00.000000
    
size=11.727 Kibyte
    
pos=22936
    
flags=_
    
[/PACKET]
    
...
    
[PACKET]
    
codec_type=audio
    
stream_index=1
    
pts=126000
    
pts_time=0:00:01.400000
    
dts=126000
    
dts_time=0:00:01.400000
    
duration=2089
    
duration_time=0:00:00.023211
    
size=285.000 byte
    
pos=109416
    
flags=K
    
[/PACKET]
    
[PACKET]
    
codec_type=audio
    
stream_index=1
    
pts=128089
    
pts_time=0:00:01.423211
    
dts=128089
    
dts_time=0:00:01.423211
    
duration=2089
    
duration_time=0:00:00.023211
    
size=374.000 byte
    
pos=-1
    
flags=K
    
[/PACKET]
    
...
    
[PACKET]
    
codec_type=video
    
stream_index=0
    
pts=N/A
    
pts_time=N/A
    
dts=N/A
    
dts_time=N/A
    
duration=0
    
duration_time=0:00:00.000000
    
size=20.000 Kibyte
    
pos=87232
    
flags=_
    
[/PACKET]
    
[PACKET]
    
codec_type=video
    
stream_index=0
    
pts=N/A
    
pts_time=N/A
    
dts=N/A
    
dts_time=N/A
    
duration=0
    
duration_time=0:00:00.000000
    
size=16.852 Kibyte
    
pos=112800
    
flags=_
    
[/PACKET]

    out.ts

    [PACKET]
    
codec_type=audio
    
stream_index=1
    
pts=0
    
pts_time=0:00:00.000000
    
dts=0
    
dts_time=0:00:00.000000
    
duration=2089
    
duration_time=0:00:00.023211
    
size=285.000 byte
    
pos=22936
    
flags=K
    
[/PACKET]
    
[PACKET]
    
codec_type=audio
    
stream_index=1
    
pts=1024
    
pts_time=0:00:00.011378
    
dts=1024
    
dts_time=0:00:00.011378
    
duration=2089
    
duration_time=0:00:00.023211
    
size=374.000 byte
    
pos=23312
    
flags=K
    
[/PACKET]
    
...
    

    
[PACKET]
    
codec_type=video
    
stream_index=0
    
pts=N/A
    
pts_time=N/A
    
dts=N/A
    
dts_time=N/A
    
duration=0
    
duration_time=0:00:00.000000
    
size=11.727 Kibyte
    
pos=25004
    
flags=_
    
[/PACKET]
    
[PACKET]
    
codec_type=audio
    
stream_index=1
    
pts=7168
    
pts_time=0:00:00.079644
    
dts=7168
    
dts_time=0:00:00.079644
    
duration=2089
    
duration_time=0:00:00.023211
    
size=299.000 byte
    
pos=55460
    
flags=K
    
[/PACKET]

    As you can see, ffmpeg.ts starts out with video packets that do not have pts/dts. The audio packets that follow contain pts/dts. This repeats until the end. All video packets do not have pts/dts according to ffprobe output.

    However, out.ts starts with audio packets and alternate with video packets. Here, video packets also do not have pts/dts. The difference is that here there is one video packet between a series of audio packets. What happened to the rest of the video packets (ffmpeg.ts has 5 audio followed by 5 video).

    Obviously, I'm still learning and don't know way too much yet... Does anything jump out as obvious a problem to anyone ? I will greatly appreciate any info / suggestions but will continue to grind at it !!

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