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• ffmpeg : resulting video from timelapse not playable in quicktime after size change [duplicate]

  15 novembre 2016, par Tony Pitale

  This question already has an answer here :

  • Upper limit on FFMPEG/libx264 frame sizes ?
    
    2 answers
    

  I can create a "timelapse" video from a series of photos using the following command :

  ffmpeg -pattern_type glob -f image2 -framerate 24 -i "*.JPG" -r 24 -s uhd2160 -pix_fmt yuv420p -vcodec libx264 disassembly-2.mp4

  And this is playable by Quicktime. However, if I change the -s option to be 4000x3000 to exactly match the size of the photos, Quicktime can no longer play the resulting video. VLC can, but not QT.

  ffmpeg -pattern_type glob -f image2 -framerate 24 -i "*.JPG" -r 24 -s 4000x3000 -pix_fmt yuv420p -vcodec libx264 disassembly-2.mp4

  Does anyone know why this change alone would break playback in QT ?

  Running Mac OS 10.12.1 on a 2013 Mac Pro. QT is version 10.4 (891). ffmpeg is :

  ffmpeg version 3.2 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
libavutil      55. 34.100 / 55. 34.100
libavcodec     57. 64.100 / 57. 64.100
libavformat    57. 56.100 / 57. 56.100
libavdevice    57.  1.100 / 57.  1.100
libavfilter     6. 65.100 /  6. 65.100
libavresample   3.  1.  0 /  3.  1.  0
libswscale      4.  2.100 /  4.  2.100
libswresample   2.  3.100 /  2.  3.100
libpostproc    54.  1.100 / 54.  1.100

  Quicktime does not show an error message. It plays a video of the appropriate size (dimensions) and length of play that is entirely black.

• Slowing down 960 fps video with ffmpeg (setpts is not working)

  7 novembre 2016, par haridsv

  I am trying to slow down a video recorded on an Android phone at 960fps. I found a lot of previous posts and blogs that all basically say the same thing, that you need to change the "presentation timestamp" (pts). I also found the official documentation that is saying the same thing. The command-line basically looks like this :

  ffmpeg -i input.mp4 -filter:v "setpts=4*PTS" -r 30 -y output.mp4

  I copied the video file using Android Filter Transfer and when I use the above command-line, it works to slow it down, but the resulting output is choppy. The output of the ffmpeg also indicates that it is duplicating the frames :

  frame=  687 fps=103 q=-1.0 Lsize=    4454kB time=00:00:22.80 bitrate=1600.1kbits/s dup=515 drop=0 speed=3.42x

  Running ffprobe on the file shows this :

  ffprobe version 3.1.1 Copyright (c) 2007-2016 the FFmpeg developers
  
    built with Apple LLVM version 7.3.0 (clang-703.0.31)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.1.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-lda
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 48.101 / 57. 48.101
  
    libavformat    57. 41.100 / 57. 41.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VID_20161030_213810.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      creation_time   : 2016-10-30 16:08:14
  
      location        : +17.3874+078.3395/
  
      location-eng    : +17.3874+078.3395/
  
      com.android.version: 6.0.1
  
      com.android.capture.fps: 120.000000
  
    Duration: 00:00:05.73, start: 0.000000, bitrate: 14991 kb/s
  
      Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 13859 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        creation_time   : 2016-10-30 16:08:14
  
        handler_name    : VideoHandle

  This seems to detect that the video is 30 fps instead of 960 fps, which is probably why it is filling in with duplicate frames instead of using the existing frames.

  I recording the video on Lenovo Z2 Plus (AKA Zuk Z2). If I playback the video using the built-in player at a slow speed it looks extremely smooth, so the frames are definitely there. Could someone help me figure out the right way ? The file is available here (about 10MB), in case someone would like to try it.

  Update : Video playback at slo-mo on the phone recorded with another phone. Notice how smooth and slow the sparks are thrown around, which is impossible if the original video is 30fps.

  • Slow-mo clip 1
  • Slow-mo click 2
  • Full video played in slow-mo (47s, probably at 120fps)

• FFMPEG add DATA stream to MPEGTS

  30 octobre 2016, par omerfirmak

  ffmpeg -re -f lavfi -i testsrc=rate=30 -re -thread_queue_size 131072
  
  -f data -i udp://127.0.0.1:4444 -map 0:0 -map 1:0 -c:v h264 -c:d copy -f mpegts test.ts

  This is the output of the command above. I simply want to record the data coming from udp synced with video. I push some KLV encoded metadata from udp ://127.0.0.1:4444 but recording stops at frame 51.

  ffmpeg version 3.1.5 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 6.2.1 (GCC) 20160830
  
    configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-netcdf --enable-shared --enable-version3 --enable-x11grab
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 48.101 / 57. 48.101
  
    libavformat    57. 41.100 / 57. 41.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, lavfi, from 'testsrc=rate=30':
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 30 tbr, 30 tbn, 30 tbc
  
  Input #1, data, from 'udp://127.0.0.1:4444':
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #1:0: Data: none
  
  File 'test.ts' already exists. Overwrite ? [y/N] y
  
  [mpegts @ 0x55ece57efc20] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
      Last message repeated 1 times
  
  Output #0, mpegts, to 'test.ts':
  
    Metadata:
  
      encoder         : Lavf57.41.100
  
      Stream #0:0: Video: mpeg2video (Main), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc57.48.101 mpeg2video
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Data: none
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
  
    Stream #1:0 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=    2 fps=0.0 q=4.7 size=       0kB time=00:00:00.00 bitrate=N/A speed=   frame=    2 fps=2.0 q=4.7 size=       0kB time=00:00:00.00 bitrate=N/A speed=   frame=    2 fps=1.3 q=4.7 size=       0kB time=00:00:00.00 bitrate=N/A speed=   frame=    2 fps=1.0 q=4.7 size=       0kB time=00:00:00.00 bitrate=N/A speed=   frame=    2 fps=0.8 q=4.7 size=       0kB time=00:00:00.00 bitrate=N/A speed=   frame=    2 fps=0.7 q=2.0 Lsize=      14kB time=00:00:00.00 bitrate=10117818.2kbits/s speed=3.63e-06x    
  
  video:12kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 10.228984%
  
  [omer@OmerDesktop HDD]$ ffmpeg -re -f lavfi -i testsrc=rate=30 -re -thread_queue_size 131072 -f data -i udp://127.0.0.1:4444 -map 0:0 -map 1:0 -c:v h264 -c:d copy -f mpegts test.ts
  
  ffmpeg version 3.1.5 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 6.2.1 (GCC) 20160830
  
    configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-netcdf --enable-shared --enable-version3 --enable-x11grab
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 48.101 / 57. 48.101
  
    libavformat    57. 41.100 / 57. 41.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, lavfi, from 'testsrc=rate=30':
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 30 tbr, 30 tbn, 30 tbc
  
  Input #1, data, from 'udp://127.0.0.1:4444':
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #1:0: Data: none
  
  File 'test.ts' already exists. Overwrite ? [y/N] y
  
  No pixel format specified, yuv444p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 0x56461eb0f500] using SAR=1/1
  
  [libx264 @ 0x56461eb0f500] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x56461eb0f500] profile High 4:4:4 Predictive, level 1.3, 4:4:4 8-bit
  
  [mpegts @ 0x56461eb0dc80] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
      Last message repeated 1 times
  
  Output #0, mpegts, to 'test.ts':
  
    Metadata:
  
      encoder         : Lavf57.41.100
  
      Stream #0:0: Video: h264 (libx264), yuv444p, 320x240 [SAR 1:1 DAR 4:3], q=-1--1, 30 fps, 90k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc57.48.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Data: none
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
    Stream #1:0 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=   17 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   
  
  frame=   32 fps= 31 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   
  
  frame=   47 fps= 31 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   
  
  frame=   51 fps= 25 q=29.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  
  
  frame=   51 fps= 20 q=29.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  
  
  frame=   51 fps= 17 q=29.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  
  
  frame=   51 fps= 14 q=29.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=  
  
  frame=   51 fps= 13 q=-1.0 Lsize=      19kB time=00:00:01.60 bitrate=  94.9kbits/s speed=0.407x