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  • FFMPEG - Non-monotonous DTS in output stream 0:0

    6 novembre 2015, par Tayax

    I’m trying to save an online input stream from a m3u8 playlist, to a Mp4 file.

    Here is my command :

    usr/bin/ffmpeg -y -i '.$stream.' -t 20  \
    
-vcodec copy -s 640x480 \
    
-acodec copy  -bsf:a aac_adtstoasc \
    
-f mp4 '.$filename.'.mp4 > block.txt 2>&1 &

    And here is my output file :

    ffmpeg version 2.6.3 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
    
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
    
  libavutil      54. 20.100 / 54. 20.100
    
  libavcodec     56. 26.100 / 56. 26.100
    
  libavformat    56. 25.101 / 56. 25.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 11.102 /  5. 11.102
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, hls,applehttp, from 'playlist.m3u8':
    
  Duration: N/A, start: 2375.973000, bitrate: N/A
    
  Program 0 
    
    Metadata:
    
      variant_bitrate : 613420
    
    Stream #0:0: Data: timed_id3 (ID3  / 0x20334449)
    
    Metadata:
    
      variant_bitrate : 613420
    
    Stream #0:1: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 30 fps, 30 tbr, 90k tbn, 60 tbc
    
    Metadata:
    
      variant_bitrate : 613420
    
    Stream #0:2: Audio: aac (LC) ([15][0][0][0] / 0x000F), 16000 Hz, mono, fltp, 53 kb/s
    
    Metadata:
    
      variant_bitrate : 613420
    
Output #0, mp4, to 'output.mp4':
    
  Metadata:
    
    encoder         : Lavf56.25.101
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 30 tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      variant_bitrate : 613420
    
    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 16000 Hz, mono, 53 kb/s
    
    Metadata:
    
      variant_bitrate : 613420
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
  Stream #0:2 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 168300, current: 168300; changing to 168301. This may result in incorrect timestamps in the output file.
    
frame=   53 fps=0.0 q=-1.0 size=     163kB time=00:00:02.75 bitrate= 485.9kbits/s    
    
frame=   79 fps= 74 q=-1.0 size=     294kB time=00:00:04.28 bitrate= 560.7kbits/s    
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 400320, current: 400320; changing to 400321. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 416970, current: 416970; changing to 416971. This may result in incorrect timestamps in the output file.
    
frame=  131 fps= 81 q=-1.0 size=     466kB time=00:00:07.10 bitrate= 537.4kbits/s    
    
frame=  150 fps= 67 q=-1.0 size=     506kB time=00:00:08.12 bitrate= 510.2kbits/s    
    
frame=  163 fps= 59 q=-1.0 size=     549kB time=00:00:08.89 bitrate= 505.4kbits/s    
    
frame=  177 fps= 54 q=-1.0 size=     621kB time=00:00:09.79 bitrate= 519.4kbits/s    
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 902160, current: 902160; changing to 902161. This may result in incorrect timestamps in the output file.
    
frame=  206 fps= 54 q=-1.0 size=     732kB time=00:00:11.52 bitrate= 520.8kbits/s    
    
frame=  236 fps= 55 q=-1.0 size=     869kB time=00:00:13.44 bitrate= 529.7kbits/s    
    
frame=  276 fps= 57 q=-1.0 size=    1036kB time=00:00:15.74 bitrate= 539.0kbits/s    
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 1433880, current: 1433880; changing to 1433881. This may result in incorrect timestamps in the output file.
    
frame=  284 fps= 36 q=-1.0 size=    1079kB time=00:00:16.25 bitrate= 543.7kbits/s    
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 1454490, current: 1454490; changing to 1454491. This may result in incorrect timestamps in the output file.
    
frame=  295 fps= 35 q=-1.0 size=    1129kB time=00:00:16.70 bitrate= 553.9kbits/s    
    
frame=  317 fps= 35 q=-1.0 size=    1222kB time=00:00:18.04 bitrate= 554.8kbits/s    
    
[mp4 @ 0x18e7700] Non-monotonous DTS in output stream 0:0; previous: 1696050, current: 1696050; changing to 1696051. This may result in incorrect timestamps in the output file.
    
frame=  347 fps= 36 q=-1.0 size=    1342kB time=00:00:19.39 bitrate= 566.9kbits/s    
    
frame=  361 fps= 37 q=-1.0 Lsize=    1400kB time=00:00:20.03 bitrate= 572.5kbits/s    
    
video:1274kB audio:115kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.784608%

    As you can see, it seems that there are some dropped frame during the recording and I have no idea how to correct this in order to have a clean file at the end.

    I believe it’s a setting problem maybe ? but I can’t really pinpoint what’s wrong.
    I tried to play with the buffer & the framerate but nothing would change.

    Any help would be appreciated.

  • ffmpeg failing to convert

    27 mars 2014, par Daniel7912

    I am using the following command to convert a mp4 on my server to webm as part of a Node.js script.

    var command = execSync('ffmpeg -i '+video+' -vpre libvpx-720p -cpu-used -5 -deadline realtime -b 3900k -an -f webm -y '+saveTo);

    When running the command in a regular terminal, it works fine. However, when running it as above using the execSync() node package, I get the following console output.

    Error: ffmpeg version 1.0.8 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Mar 27 2014 17:09:06 with gcc 4.7.3 (Gentoo 4.7.3-r1 p1.3, pie-0.5.5)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-
    
g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-O2 -pipe -march=native -fomit-frame-pointer' --extra-cflags='-O2 -pipe -march=native -fomit-frame-pointer' --extra-cxxflags
    
='-O2 -pipe -march=native -fomit-frame-pointer' --disable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --enable-avresample --disable-stripp
    
ing --disable-debug --disable-doc --disable-vaapi --disable-vdpau --disable-ffplay --disable-runtime-cpudetect --enable-libmp3lame --enable-libvo-aacenc --enable-libthe
    
ora --enable-libfdk-aac --enable-nonfree --disable-indev=v4l2 --disable-indev=alsa --disable-indev=oss --disable-indev=jack --disable-outdev=alsa --disable-outdev=oss -
    
-disable-outdev=sdl --enable-libvorbis --enable-libvpx --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmxext --disable-ssse3 --disab
    
le-vis --disabl  libavutil      51. 73.101 / 51. 73.101
    
  libavcodec     54. 59.100 / 54. 59.100
    
  libavformat    54. 29.104 / 54. 29.104
    
  libavdevice    54.  2.101 / 54.  2.101
    
  libavfilter     3. 17.100 /  3. 17.100
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/video/input.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    creation_time   : 2013-08-24 21:58:35
    
    encoder         : HandBrake 0.9.9 2013051800
    
  Duration: 00:06:31.46, start: 0.000000, bitrate: 5092 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4919 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Metadata:
    
      creation_time   : 2013-08-24 21:58:35
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 168 kb/s
    
    Metadata:
    
      creation_time   : 2013-08-24 21:58:35
    
Please use -b:a or -b:v, -b is ambiguous
    
[libvpx @ 0x7f0c40] v1.3.0
    
Output #0, webm, to '/path/to/video/output.webm':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    encoder         : Lavf54.29.104
    
    Stream #0:0(und): Video: vp8, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=11-51, 3900 kb/s, 1k tbn, 25 tbc
    
    encoder         : Lavf54.29.104                                                                                                                          [4009/9202]
    
    Stream #0:0(und): Video: vp8, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=11-51, 3900 kb/s, 1k tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2013-08-24 21:58:35
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libvpx)
    
Press [q] to stop, [?] for help
    
[h264 @ 0x8f42a0] AVC: nal size 3235393
    
    Last message repeated 1 times
    
[h264 @ 0x8f42a0] no frame!
    
[h264 @ 0x7be7e0] concealing 7123 DC, 7123 AC, 7123 MV errors in P frame
    
[h264 @ 0x8f46c0] AVC: nal size 2572289
    
    Last message repeated 1 times
    
[h264 @ 0x8f46c0] no frame!
    
[h264 @ 0x8f4ae0] AVC: nal size 11559745
    
    Last message repeated 1 times
    
[h264 @ 0x8f4ae0] no frame!
    
[h264 @ 0x8f4f00] AVC: nal size 781975966
    
    Last message repeated 1 times
    
[h264 @ 0x8f4f00] no frame!
    
[h264 @ 0x7be7e0] AVC: nal size -1537130086
    
    Last message repeated 1 times
    
[h264 @ 0x7be7e0] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x8f42a0] AVC: nal size -1303101030
    
    Last message repeated 1 times
    
[h264 @ 0x8f42a0] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x8f46c0] AVC: nal size 833290655
    
    Last message repeated 1 times
    
[h264 @ 0x8f46c0] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x8f4ae0] AVC: nal size -816365157
    
    Last message repeated 1 times
    
[h264 @ 0x8f4ae0] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x8f4f00] AVC: nal size 776798623
    
    Last message repeated 1 times
    
[h264 @ 0x8f4f00] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x7be7e0] AVC: nal size -824622693
    
    Last message repeated 1 times
    
[h264 @ 0x7be7e0] no frame!
    
Error while decoding stream #0:0: Operation not permitted
    
[h264 @ 0x8f42a0] AVC: nal size 1276789151
    
Error while decoding stream #0:0: Operation not permitted
    
frame=    4 fps=0.0 q=0.0 Lsize=     107kB time=00:00:00.16 bitrate=5476.5kbits/s    
    
video:106kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.473334%
    
Received signal 2: terminating.

    The 'no frame' bits repeat several thousand times before it reaches the final section.

    Could someone tell me what's wrong ?

    Thanks for any help

  • ffmpeg : mix/merge multiple mp3 files, some do not mix

    28 août 2018, par C. Ovidiu

    I am trying to merge multiple mp3 files on top of each other on a CentOS 7 server.

    I am trying with ffmpeg but I have mixed results. When mixing 4 files, the last one for example does not mix with the others and is not audible in the final output.

    If I mix this file with another one or two(so max 3 files merged), it works.

    Is there a limit when merging ? For reference, each file is about 10mb is size and 5:00 minutes long.

    This is the command I am using

    ffmpeg -i /var/www/vhosts/site/httpdocs/uploads/tracks/1.mp3 -i /var/www/vhosts/site/httpdocs/uploads/tracks/2.mp3 -i /var/www/vhosts/site/httpdocs/uploads/tracks/3.mp3 -i /var/www/vhosts/site/httpdocs/uploads/tracks/4.mp3 -filter_complex amerge -ac 2 -c:a libmp3lame -q:a 4 /var/www/vhosts/site/httpdocs/uploads/mix.mp3

    The output after merging is this :

    ffmpeg version 2.8.15 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
    
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
[mp3 @ 0x1c8ba60] Skipping 0 bytes of junk at 1044.
    
Input #0, mp3, from '/var/www/vhosts/site/httpdocs/uploads/tracks/1.mp3':
    
  Duration: 00:05:44.08, start: 0.025057, bitrate: 320 kb/s
    
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Side data:
    
      replaygain: track gain - 6.000000, track peak - unknown, album gain - unknown, album peak - unknown,
    
[mp3 @ 0x1c8eac0] Skipping 0 bytes of junk at 2446.
    
[mp3 @ 0x1c8eac0] Estimating duration from bitrate, this may be inaccurate
    
Input #1, mp3, from '/var/www/vhosts/site/httpdocs/uploads/tracks/2.mp3':
    
  Metadata:
    
    genre           : Other
    
  Duration: 00:05:44.19, start: 0.000000, bitrate: 320 kb/s
    
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
[mp3 @ 0x1c9d640] Skipping 0 bytes of junk at 1044.
    
Input #2, mp3, from '/var/www/vhosts/site/httpdocs/uploads/tracks/3.mp3':
    
  Duration: 00:05:44.08, start: 0.025057, bitrate: 320 kb/s
    
    Stream #2:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Side data:
    
      replaygain: track gain - 3.400000, track peak - unknown, album gain - unknown, album peak - unknown,
    
[mp3 @ 0x1cc2b80] Skipping 0 bytes of junk at 1044.
    
Input #3, mp3, from '/var/www/vhosts/site/httpdocs/uploads/tracks/4.mp3':
    
  Duration: 00:05:44.08, start: 0.025057, bitrate: 320 kb/s
    
    Stream #3:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Side data:
    
      replaygain: track gain - 12.100000, track peak - unknown, album gain - unknown, album peak - unknown,
    
[Parsed_amerge_0 @ 0x1cc34e0] No channel layout for input 1
    
[Parsed_amerge_0 @ 0x1cc34e0] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
    
Output #0, mp3, to '/var/www/vhosts/site/httpdocs/uploads/mix.mp3':
    
  Metadata:
    
    TSSE            : Lavf56.40.101
    
    Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p (default)
    
    Metadata:
    
      encoder         : Lavc56.60.100 libmp3lame
    
Stream mapping:
    
  Stream #0:0 (mp3) -> amerge:in0
    
  Stream #1:0 (mp3) -> amerge:in1
    
  amerge -> Stream #0:0 (libmp3lame)
    
Press [q] to stop, [?] for help
    
size=    2360kB time=00:05:44.03 bitrate=  56.2kbits/s
    
video:0kB audio:2360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.010468%

    Is there a way to solve this, or at least to know what the issue is ?

    Also, some people recommended sox, but I can’t figure how to install it on CentOS.

    Any other alternatives will also help.

    Thank you

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