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• ffmpeg -to flag not always correctly recognized when processing the same file and different time ranges

  10 novembre 2019, par Sebastian

  I have a file that I wanted to cut into few pieces. The problem is my command not always works :
  ffmpeg -ss 00:00:05 -i 4.DeepPurpleJag_robocze.mp4 -to 01:00:21 -c:v copy -c:a copy  testing.mp4 produces properly cut video with the output :

  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.8)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '4.DeepPurpleJag_robocze.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      creation_time   : 2019-11-09T13:18:48.000000Z
  
      encoder         : HandBrake 1.2.2 2019022300
  
    Duration: 03:05:31.33, start: 0.000000, bitrate: 1045 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/bt709), 350x480 [SAR 65535:35816 DAR 764575:573056], 904 kb/s, SAR 14801:8089 DAR 518035:388272, 25 fps, 25 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : SoundHandler
  
  File 'testing.mp4' already exists. Overwrite ? [y/N] y
  
  Output #0, mp4, to 'testing.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.29.100
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/bt709), 350x480 [SAR 14801:8089 DAR 518035:388272], q=2-31, 904 kb/s, 25 fps, 25 tbr, 90k tbn, 90k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=23390 fps=0.0 q=-1.0 size=  122880kB time=00:15:35.35 bitrate=1076.2kbits/s sframe=47377 fps=47167 q=-1.0 size=  259584kB time=00:31:34.83 bitrate=1122.3kbits/sframe=74437 fps=49477 q=-1.0 size=  401664kB time=00:49:37.22 bitrate=1105.2kbits/sframe=90531 fps=47477 q=-1.0 Lsize=  518987kB time=01:00:20.98 bitrate=1174.1kbits/s speed=1.9e+03x
  
  video:457170kB audio:59123kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.521705%

  However when I try to cut the same source with different ss and to like this
  ffmpeg -ss 01:40:05 -i 4.DeepPurpleJag_robocze.mp4 -to 02:19:21 -c:v copy -c:a copy  testing2.mp4 I got output file that is over 1,5h long instead of 39 minutes - the flag -to is ignored and file is cut till the end. output is :

  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.8)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '4.DeepPurpleJag_robocze.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      creation_time   : 2019-11-09T13:18:48.000000Z
  
      encoder         : HandBrake 1.2.2 2019022300
  
    Duration: 03:05:31.33, start: 0.000000, bitrate: 1045 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/bt709), 350x480 [SAR 65535:35816 DAR 764575:573056], 904 kb/s, SAR 14801:8089 DAR 518035:388272, 25 fps, 25 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : SoundHandler
  
  File 'testing2.mp4' already exists. Overwrite ? [y/N] y
  
  Output #0, mp4, to 'testing2.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.29.100
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/bt709), 350x480 [SAR 14801:8089 DAR 518035:388272], q=2-31, 904 kb/s, 25 fps, 25 tbr, 90k tbn, 90k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-11-09T13:18:48.000000Z
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=31213 fps=0.0 q=-1.0 size=  122624kB time=00:20:45.83 bitrate= 806.3kbits/s sframe=61164 fps=61143 q=-1.0 size=  267264kB time=00:40:43.87 bitrate= 895.9kbits/sframe=91215 fps=60795 q=-1.0 size=  414464kB time=01:00:45.90 bitrate= 931.3kbits/sframe=117850 fps=58914 q=-1.0 size=  541440kB time=01:18:31.28 bitrate= 941.5kbits/frame=128220 fps=58002 q=-1.0 Lsize=  581509kB time=01:25:26.26 bitrate= 929.3kbits/s speed=2.32e+03x
  
  video:493385kB audio:84316kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.659221%

  I have no idea what is going on, when I try to cut the movie using handbrake everything is ok. I can provide the file if necessary.

• FFMPEG recording get an error when camera is turned off

  29 novembre 2019, par Bogdan Rudnytskyi

  I have a video recording service using ffmpeg.
  When the camera is turned off, I don’t get an error and the service freezes.
  Please help me how I can configure recording so that this service crashes with an error ? (and I will use Supervisor).
  Maybe I need to insert some flag ?

  ffmpeg -rtsp_transport tcp -i 'rtsp://...' -reconnect 1 -c:v copy -c:a copy -flags -global_header -hls_time 5 -hls_list_size 0 -strftime 1 -hls_segment_filename '%Y%m%d%H%M%S.ts' archive.m3u8 -nostats

  logs

  ffmpeg started on 2019-11-28 at 10:23:14 Report written to "ffmpeg-20191128-102314.log" Command line: "C:\\ffmpeg\\bin\\ffmpeg.exe" -report -rtsp_transport tcp -i "rtsp://..." -reconnect 1 -c:v copy -c:a copy -flags -global_header
  
  -hls_time 5 -hls_list_size 0 -strftime 1 -hls_segment_filename "%Y%m%d%H%M%S.ts" archive.m3u8 ffmpeg version N-94150-g231d0c819f Copyright (c) 2000-2019 the FFmpeg developers   built with gcc 9.1.1 (GCC) 20190621   configuration: --enable-gpl --enable-version3
  
  --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt   libavutil      56. 30.100 / 56. 30.100   libavcodec     58. 53.101 /
  
  58. 53.101   libavformat    58. 28.101 / 58. 28.101   libavdevice    58.  7.100 / 58.  7.100   libavfilter     7. 55.100 /  7. 55.100   libswscale      5.  4.101 /  5.  4.101   libswresample   3.  4.100 / 
  
  3.  4.100   libpostproc    55.  4.100 / 55.  4.100 Splitting the commandline. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Reading option '-rtsp_transport' ... matched as AVOption 'rtsp_transport' with argument 'tcp'. Reading option '-i' ... matched as input url with argument 'rtsp://...'. Reading option '-reconnect' ... matched as AVOption 'reconnect' with argument '1'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-flags' ... matched as AVOption 'flags' with argument '-global_header'. Reading option '-hls_time' ... matched as AVOption 'hls_time' with argument '5'. Reading option '-hls_list_size' ... matched as AVOption 'hls_list_size' with argument '0'. Reading option '-strftime' ... matched as AVOption 'strftime' with argument '1'. Reading option '-hls_segment_filename' ... matched as AVOption 'hls_segment_filename' with argument '%Y%m%d%H%M%S.ts'. Reading option 'archive.m3u8' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option report (generate a report) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url 'rtsp://...'. Successfully parsed a group of options. Opening an input file: 'rtsp://...'. [tcp @ 0000025972ecd180] No default whitelist set [tcp @ 0000025972ecd180] Original list of addresses: [tcp @ 0000025972ecd180] Address 0.0.0.0 port 999 [tcp @ 0000025972ecd180] Interleaved list of addresses: [tcp @ 0000025972ecd180] Address 0.0.0.0 port 999 [tcp @ 0000025972ecd180] Starting connection attempt to 0.0.0.0 port 999 [tcp @ 0000025972ecd180] Successfully connected to 0.0.0.0 port 999 [rtsp @ 0000025972ecca80] SDP: v=0
  
  
  
  o=- 1574936594324879 1574936594324879 IN IP4 10.10.1.65
  
  
  
  s=Media Presentation
  
  
  
  e=NONE
  
  
  
  b=AS:5050
  
  
  
  t=0 0
  
  
  
  a=control:'rtsp://...'
  
  
  
  m=video 0 RTP/AVP 96
  
  
  
  c=IN IP4 0.0.0.0
  
  
  
  b=AS:5000
  
  
  
  a=recvonly
  
  
  
  a=x-dimensions:1920,1080
  
  
  
  a=control:'rtsp://...'
  
  
  
  a=rtpmap:96 H264/90000
  
  
  
  a=fmtp:96 profile-level-id=420029; packetization-mode=1; sprop-parameter-sets=Z00AKZpkA8ARPy4C3AQEBQAAAwPoAADDUOhgAP84AAP80rvLjQwAH+cAAH+aV3lwoA==,aO48gA==
  
  
  
  a=Media_header:MEDIAINFO=494D4B48010200000400000100000000000000000000000000000000000000000000000000000000;
  
  
  
  a=appversion:1.0
  
  
  
  
  
  [rtsp @ 0000025972ecca80] video codec set to: h264 [rtsp @ 0000025972ecca80] RTP Profile IDC: 42 Profile IOP: 0 Level: 29 [rtsp @ 0000025972ecca80] RTP Packetization Mode: 1 [rtsp @ 0000025972ecca80] Extradata set to 0000025972ed0600 (size: 61) [rtsp @ 0000025972ecca80] setting jitter buffer size to 0 [rtsp @ 0000025972ecca80] hello state=0 [h264 @ 0000025972ed0080] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 5(IDR), nal_ref_idc: 3 [h264 @ 0000025972ed0080] Format yuvj420p chosen by get_format(). [h264 @ 0000025972ed0080] Reinit context to 1920x1088, pix_fmt: yuvj420p [h264 @ 0000025972ed0080] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 5(IDR), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 7(SPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 8(PPS), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 5(IDR), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 3 [h264 @ 0000025972ed0080] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 3 [rtsp @ 0000025972ecca80] All info found Input #0, rtsp, from 'rtsp://...':   Metadata:
  
      title           : Media Presentation   Duration: N/A, start: 0.240000, bitrate: N/A
  
      Stream #0:0, 28, 1/90000: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Successfully opened the file. Parsing a group of options: output url archive.m3u8. Applying option c:v (codec name) with argument copy. Applying option c:a (codec name) with argument copy. Successfully parsed a group of options. Opening an output file: archive.m3u8. Successfully opened the file. [hls @ 0000025972f977c0] Opening '20191128102316.ts' for writing [file @ 0000025975633ec0] Setting default whitelist 'file,crypto' [mpegts @ 00000259756333c0] muxrate VBR, pcr every 2 pkts, sdt every 2147483647, pat/pmt every 2147483647 pkts Output #0, hls, to 'archive.m3u8':   Metadata:
  
      title           : Media Presentation
  
      encoder         : Lavf58.28.101
  
      Stream #0:0, 0, 1/90000: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc Stream mapping:   Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream) [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 0, current: -18000; changing to 1. This may result in incorrect timestamps in the output file. [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 1, current: -14400; changing to 2. This may result in incorrect timestamps in the output file. [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 2, current: -10800; changing to 3. This may result in incorrect timestamps in the output file. [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 3, current: -7200; changing to 4. This may result in incorrect timestamps in the output file. [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 4, current: -3600; changing to 5. This may result in incorrect timestamps in the output file. [hls @ 0000025972f977c0] Non-monotonous DTS in output stream 0:0; previous: 5, current: 0; changing to 6. This may result in incorrect timestamps in the output file. frame=   48 fps=0.0 q=-1.0 size=N/A time=00:00:01.68 bitrate=N/A speed=3.13x     frame=   61 fps= 58 q=-1.0 size=N/A time=00:00:02.20 bitrate=N/A speed= 2.1x     frame=   74 fps= 47 q=-1.0 size=N/A time=00:00:02.72 bitrate=N/A speed=1.74x     frame=   87 fps= 41 q=-1.0 size=N/A time=00:00:03.24 bitrate=N/A speed=1.54x     frame=  100 fps= 38 q=-1.0 size=N/A time=00:00:03.76 bitrate=N/A speed=1.44x   frame=  113 fps= 36 q=-1.0 size=N/A time=00:00:04.27 bitrate=N/A speed=1.37x     frame=  125 fps= 34 q=-1.0 size=N/A time=00:00:04.75 bitrate=N/A speed=1.31x     frame=  138 fps= 33 q=-1.0 size=N/A time=00:00:05.27 bitrate=N/A speed=1.28x     frame=  151 fps= 32 q=-1.0 size=N/A time=00:00:05.79 bitrate=N/A speed=1.24x     [AVIOContext @ 0000025972ecbe80] Statistics: 0 seeks, 15 writeouts [hls @ 0000025972f977c0] Opening '20191128102321.ts' for writing [file @ 0000025972f9ef00] Setting default whitelist 'file,crypto' [hls @ 0000025972f977c0] Opening 'archive.m3u8.tmp' for writing [file @ 000002597562ff40] Setting default whitelist 'file,crypto' EXT-X-MEDIA-SEQUENCE:0 [AVIOContext @ 0000025972ecbfc0] Statistics: 0 seeks, 1 writeouts frame=  165 fps= 32 q=-1.0 size=N/A time=00:00:06.35 bitrate=N/A speed=1.22x     frame=  178 fps= 31 q=-1.0 size=N/A time=00:00:06.87 bitrate=N/A speed= 1.2x     frame=  192 fps= 31 q=-1.0 size=N/A time=00:00:07.43 bitrate=N/A speed=1.18x   frame=  204 fps= 30 q=-1.0 size=N/A time=00:00:07.91 bitrate=N/A speed=1.17x     frame=  218 fps= 30 q=-1.0 size=N/A time=00:00:08.47 bitrate=N/A speed=1.16x     frame=  231 fps= 29 q=-1.0 size=N/A time=00:00:08.99 bitrate=N/A speed=1.15x     frame=  244 fps= 29 q=-1.0 size=N/A time=00:00:09.51 bitrate=N/A speed=1.14x     frame=  255 fps= 29 q=-1.0 size=N/A time=00:00:09.95 bitrate=N/A speed=1.11x   frame=  272 fps= 29 q=-1.0 size=N/A time=00:00:10.63 bitrate=N/A speed=1.12x     frame=  285 fps= 28 q=-1.0 size=N/A time=00:00:11.15 bitrate=N/A speed=1.11x     frame=  299 fps= 28 q=-1.0 size=N/A time=00:00:11.71 bitrate=N/A speed=1.11x     [AVIOContext @ 0000025972ecbe80] Statistics: 0 seeks, 12 writeouts [hls @ 0000025972f977c0] Opening '20191128102327.ts' for writing [file @ 0000025975633ec0] Setting default whitelist 'file,crypto' [hls @ 0000025972f977c0] Opening 'archive.m3u8.tmp' for writing [file @ 0000025975630780] Setting default whitelist 'file,crypto' EXT-X-MEDIA-SEQUENCE:0 [AVIOContext @ 0000025972ecbfc0] Statistics: 0 seeks, 1 writeouts frame=  305 fps= 28 q=-1.0 size=N/A time=00:00:11.95 bitrate=N/A speed=1.08x     frame=  325 fps= 28 q=-1.0 size=N/A time=00:00:12.75 bitrate=N/A speed= 1.1x     frame=  338 fps= 28 q=-1.0 size=N/A time=00:00:13.27 bitrate=N/A speed=1.09x   frame=  351 fps= 28 q=-1.0 size=N/A time=00:00:13.79 bitrate=N/A speed=1.09x     frame=  364 fps= 28 q=-1.0 size=N/A time=00:00:14.31 bitrate=N/A speed=1.09x     frame=  377 fps= 28 q=-1.0 size=N/A time=00:00:14.83 bitrate=N/A speed=1.08x     frame=  390 fps= 27 q=-1.0 size=N/A time=00:00:15.35 bitrate=N/A speed=1.08x     frame=  403 fps= 27 q=-1.0 size=N/A time=00:00:15.87 bitrate=N/A speed=1.08x   [AVIOContext @ 0000025972ecbe80] Statistics: 0 seeks, 8 writeouts [hls @ 0000025972f977c0] Opening '20191128102331.ts' for writing [file @ 0000025975633ec0] Setting default whitelist 'file,crypto' [hls @ 0000025972f977c0] Opening 'archive.m3u8.tmp' for writing [file @ 0000025975630240] Setting default whitelist 'file,crypto' EXT-X-MEDIA-SEQUENCE:0 [AVIOContext @ 0000025972ecbfc0] Statistics: 0 seeks, 1 writeouts frame=  416 fps= 27 q=-1.0 size=N/A time=00:00:16.39 bitrate=N/A speed=1.08x     frame=  428 fps= 27 q=-1.0 size=N/A time=00:00:16.87 bitrate=N/A speed=1.07x     frame=  442 fps= 27 q=-1.0 size=N/A time=00:00:17.43 bitrate=N/A speed=1.07x   frame=  454 fps= 27 q=-1.0 size=N/A time=00:00:17.91 bitrate=N/A speed=1.07x

• muxing DVB subtitles into transport stream with ffmpeg

  28 novembre 2019, par user3439130

  So i have H264 video + AAC audio muxed inside transport stream (*.ts). To achive evenly spread PCR values i added muxrate tag to my command.

  ffmpeg -analyzeduration 20000000 -probesize 20M -loglevel verbose -i 1135084.m4v -i 1135084.m4a -c copy -muxrate 7982K -map 0:v:0 -map 1:a:0 -metadata:s:a:0 language=eng -metadata:s:a:0 tms_track_id=169451954 TEMP0.ts

  Since our client need DVB substitles we convert SRT to DVD with subtitle edit and then encode them to DVB with ffmpeg with this command :

  ffmpeg -analyzeduration 20000000 -probesize 20M -loglevel verbose -i TEMP0.ts -i out.da.idx -map 0 -c copy -muxrate 7992K -map 1:s -c:s:0 dvbsub -metadata:s:s:0 language=dan TEMP1.ts

  here is output from ffmpeg command :

  ffmpeg version git-2019-11-18-d831edc Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20191010
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 36.100 / 56. 36.100
  
    libavcodec     58. 62.100 / 58. 62.100
  
    libavformat    58. 35.100 / 58. 35.100
  
    libavdevice    58.  9.101 / 58.  9.101
  
    libavfilter     7. 66.100 /  7. 66.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  [h264 @ 000002bf7460d400] non-existing SPS 0 referenced in buffering period
  
  [h264 @ 000002bf7460d400] SPS unavailable in decode_picture_timing
  
  [h264 @ 000002bf7460d400] non-existing SPS 0 referenced in buffering period
  
  [h264 @ 000002bf7460d400] SPS unavailable in decode_picture_timing
  
  [h264 @ 000002bf7460d400] Reinit context to 1920x1088, pix_fmt: yuv420p
  
  [mpegts @ 000002bf7460ae00] max_analyze_duration 20000000 reached at 20000000 microseconds st:0
  
  [mpegts @ 000002bf7460ae00] start time for stream 2 is not set in estimate_timings_from_pts
  
  Input #0, mpegts, from 'TEMP1.ts':
  
    Duration: 01:51:54.48, start: 1.440000, bitrate: 7992 kb/s
  
    Program 1
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (High), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(progressive, left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 254 kb/s
  
      Stream #0:2[0x102](dan): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
  [vobsub @ 000002bf75d65940] IDX/SUB: out.fi.idx -> out.fi.sub
  
  Input #1, vobsub, from 'out.fi.idx':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0[0x0](fi): Subtitle: dvd_subtitle, 1920x1080 (default)
  
  File 'TEMP2.ts' already exists. Overwrite? [y/N] y
  
  [mpegts @ 000002bf74634f00] service 1 using PCR in pid=256, pcr_period=20ms
  
  [mpegts @ 000002bf74634f00] muxrate 8002000, sdt every 500 ms, pat/pmt every 100 ms
  
  Output #0, mpegts, to 'TEMP2.ts':
  
    Metadata:
  
      encoder         : Lavf58.35.100
  
      Stream #0:0: Video: h264 (High), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(progressive, left), 1920x1080 (0x0) [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 90k tbc
  
      Stream #0:1(eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 254 kb/s
  
      Stream #0:2(dan): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:3(fin): Subtitle: dvb_subtitle (dvbsub), 1920x1080 (default)
  
      Metadata:
  
        encoder         : Lavc58.62.100 dvbsub
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
    Stream #0:2 -> #0:2 (copy)
  
    Stream #1:0 -> #0:3 (dvd_subtitle (dvdsub) -> dvb_subtitle (dvbsub))
  
  Press [q] to stop, [?] for help
  
  No more output streams to write to, finishing.me=01:51:46.51 bitrate=7990.2kbits/s speed=18.2x
  
  frame=167862 fps=456 q=-1.0 Lsize= 6558750kB time=01:51:54.47 bitrate=8002.0kbits/s speed=18.2x
  
  video:5738580kB audio:212004kB subtitle:10989kB other streams:0kB global headers:0kB muxing overhead: 10.017118%
  
  Input file #0 (TEMP1.ts):
  
    Input stream #0:0 (video): 167862 packets read (5876305439 bytes);
  
    Input stream #0:1 (audio): 314742 packets read (217092443 bytes);
  
    Input stream #0:2 (subtitle): 1740 packets read (5578504 bytes);
  
    Total: 484344 packets (6098976386 bytes) demuxed
  
  Input file #1 (out.fi.idx):
  
    Input stream #1:0 (subtitle): 855 packets read (6881158 bytes); 854 frames decoded;
  
    Total: 855 packets (6881158 bytes) demuxed
  
  Output file #0 (TEMP2.ts):
  
    Output stream #0:0 (video): 167862 packets muxed (5876305439 bytes);
  
    Output stream #0:1 (audio): 314742 packets muxed (217092443 bytes);
  
    Output stream #0:2 (subtitle): 1740 packets muxed (5578504 bytes);
  
    Output stream #0:3 (subtitle): 1708 frames encoded; 1708 packets muxed (5673736 bytes);
  
    Total: 486052 packets (6104650122 bytes) muxed
  
  [AVIOContext @ 000002bf7463c280] Statistics: 0 seeks, 25621 writeouts
  
  [AVIOContext @ 000002bf74613f80] Statistics: 6728300448 bytes read, 2 seeks
  
  [AVIOContext @ 000002bf75efde40] Statistics: 7852032 bytes read, 0 seeks
  
  [AVIOContext @ 000002bf74f30e40] Statistics: 40275 bytes read, 0 seeks

  So i have video/audio and two dvb tracks inside one TS.

  Now im adding third subtitle and i get this warning :

  frame=32351 fps=869 q=-1.0 size= 1255936kB time=00:21:33.99 bitrate=7951.1kbits/s speed=34.8x
  
  [mpegts @ 0x2994600] Non-monotonous DTS in output stream 0:3; previous: 116868609, current: 116868607; changing to 116868610. This may result in incorrect timestamps in the output file.
  
  frame=33416 fps=886 q=-1.0 size= 1297408kB time=00:22:16.56 bitrate=7952.0kbits/s speed=35.4x

  By this warning it seems that something is not right with DVB (0:3) Finish track.
  Playing back the file with VLC i can see that Finish subtitles (between 21:33 and 22:16) are not showing up.

  Dumping packets from 0:3 track i see that 4 packets have the same DTS/PTS values.

  #stream#, dts,        pts, duration,     size, hash
  
  0,  111258000,  111258000,        0,     6979, 6215f060, S=1,        1, 67d220bc
  
  0,  111689100,  111689100,        0,       25, e60e94fa, S=1,        1, 67d220bc
  
  0,  113230800,  113230800,        0,     4423, f811be62, S=1,        1, 67d220bc
  
  0,  113561550,  113561550,        0,       25, 6db8d81f, S=1,        1, 67d220bc
  
  0,  113788800,  113788800,        0,     8247, 8b494779, S=1,        1, 67d220bc
  
  0,  114191190,  114191190,        0,       25, a205e183, S=1,        1, 67d220bc
  
  
  
  0,  116868607,  116868607,        0,     1119, e5d11188, S=1,        1, 67d220bc
  
  0,  116868607,  116868607,        0,       28, 11e09861, S=1,        1, 67d220bc
  
  0,  116868607,  116868607,        0,     1122, 8320a3f5, S=1,        1, 67d220bc
  
  0,  116868607,  116868607,        0,       28, e896fa37, S=1,        1, 67d220bc
  
  
  
  0,  117205200,  117205200,        0,     3583, 47b23f27, S=1,        1, 67d220bc
  
  0,  117611640,  117611640,        0,       25, e5ae32ed, S=1,        1, 67d220bc
  
  0,  117709200,  117709200,        0,     1119, 208b4f80, S=1,        1, 67d220bc
  
  0,  117830970,  117830970,        0,       25, 2a130b71, S=1,        1, 67d220bc
  
  0,  117846000,  117846000,        0,     3105, f179a4f0, S=1,        1, 67d220bc
  
  0,  118148040,  118148040,        0,       25, 29b3ad66, S=1,        1, 67d220bc
  
  0,  120146410,  120146410,        0,     1119, 714ef5d1, S=1,        1, 67d220bc
  
  0,  120146410,  120146410,        0,       28, bbad7fed, S=1,        1, 67d220bc
  
  0,  120708000,  120708000,        0,     2060, 703084f7, S=1,        1, 67d220bc
  
  0,  120855420,  120855420,        0,       25, 6db8d81f, S=1,        1, 67d220bc
  
  0,  121122000,  121122000,        0,     2184, 04a7be71, S=1,        1, 67d220bc
  
  0,  121395330,  121395330,        0,       25, a205e183, S=1,        1, 67d220bc

  Thes are the lines from SRT file where the warning happens :

  146
  
  00:21:34,840 --> 00:21:36,600
  
  Make!
  
  147
  
  00:21:42,280 --> 00:21:46,800
  
  Make! Hei, Make. Make!
  
  148
  
  00:21:47,880 --> 00:21:49,240
  
  Make!
  
  149
  
  00:21:49,400 --> 00:21:52,760
  
  Odota minua, Make!
  
  150
  
  00:22:00,400 --> 00:22:01,760
  
  Make!

  Sometimes muxing subtitles in different order (for example Finish before Danish and then Swedish) would solve this problem, but i would like to know why such things are happening.