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• Ffmpeg stream stops after a couple of seconds

  28 juin 2019, par Connor Woodford

  I have an http stream of an mkv file that I am trying to transcode to mp4 via ffmpeg. Here is the command I enter to start the stream ffmpeg -i "input.mkv" -f mpeg1video -vf "scale=640:480" -r 20 "http://localhost:port". The stream starts fine. Here is what the stream gives me at first :

  Metadata:
     title           : Chapter 17
   Stream #0:0(eng): Video: mpeg1video, yuv420p, 640x480 [SAR 4:3 DAR 16:9], q=2-31, 200 kb/s, 24 fps, 24 tbn, 24 tbc
   Metadata:
     BPS-eng         : 31632108
     DURATION-eng    : 02:03:42.289875000
     NUMBER_OF_FRAMES-eng: 177957
     NUMBER_OF_BYTES-eng: 29347831113
     SOURCE_ID-eng   : 001011
     _STATISTICS_WRITING_APP-eng: MakeMKV v1.14.2 win(x64-release)
     _STATISTICS_WRITING_DATE_UTC-eng: 2019-06-18 22:53:22
     _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
     encoder         : Lavc58.31.102 mpeg1video
   Side data:
     cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=  111 fps=0.0 q=6.2 size=     212kB time=00:00:04.54 bitrate= 382.2kbits/s speed=8.82x

  but after this shows up it hangs for a while then it gives me this :

  av_interleaved_write_frame(): Unknown errorime=00:00:05.24 bitrate= 788.3kbits/s speed=10.5x
  
  Error writing trailer of http://192.168.1.19:4012: Error number -10054 occurred
  
  frame=  128 fps=1.1 q=12.1 Lsize=     646kB time=00:00:05.84 bitrate= 905.0kbits/s speed=0.0487x
  
  video:343kB audio:274kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 4.639489%
  
  [http @ 000001cb1fdac780] URL read error:  -10054
  
  Conversion failed!

  Here is my http server in node.js :

  const express = require('express')
  
  const port = port
  
  var ffmpeg = require('ffmpeg');
  
  var http = require('http')
  
  
  
  var server = http.createServer(function(req, res) {
  
      res.writeHead(200, {'Content-Type': 'video/mp4'});
  
  })
  
  
  
  server.listen(port, 'ipAddress')
  
  console.log(`Example app on port ${port}!`);

• lavc/tiff : Decode embedded JPEGs in DNG images

  29 août 2019, par Nick Renieris

  lavc/tiff : Decode embedded JPEGs in DNG images
  Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.
  This commit adds support for :
  
   DNG tiles
  
   DNG tile huffman lossless JPEG decoding
  
   DNG 8-bpp ("packed" as dcraw calls it) decoding
  
   DNG color scaling [1]
  
    - LinearizationTable tag
  
    - BlackLevel tag
  [1] : As specified in the DNG Specification - Chapter 5
  Signed-off-by : Nick Renieris <velocityra@gmail.com>
  

  • [DH] configure
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/tiff.c
  • [DH] libavcodec/tiff.h

• How to convert mp4 file so that it can allow timeline drag in html5 video tag ?

  21 août 2019, par sgon00

  I generated a mp4 file by ffmpeg. And then correct the index by qt-faststart. But now, there is still one problem. In chrome browser, the video timeline can not be dragged. I tried another online video with the same video tag code. (for instance : http://www.w3schools.com/html/movie.mp4). The timeline dragging works fine. Can anyone please teach me how to enable timeine drag for this video ? How can I convert the mp4 file to make it right ? Thanks a lot.

  Updated :

  I kinda found the problem and fixed it. My debug http server is picky. So when I use nginx server, the mp4 video timeline can be draggable.

  But the weird part is the timeline of the movie.mp4 from w3schools.com works in my debug http server. So I don’t know the true cause, but changing to production http server solved the problem.

  • ffmpeg command and output :

  $ ffmpeg -i movie.mp4 -vf yadif=1:tff,zscale=w=320:h=240:f=spline36:r=full,unsharp=luma_msize_x=3:luma_msize_y=3:luma_amount=0.8,interlace notworking.mp4
  
  
  
  ffmpeg version N-93939-g819ed1df94-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --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-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
  
    libavutil      56. 28.100 / 56. 28.100
  
    libavcodec     58. 52.102 / 58. 52.102
  
    libavformat    58. 27.103 / 58. 27.103
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 54.101 /  7. 54.101
  
    libswscale      5.  4.101 /  5.  4.101
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      creation_time   : 2010-05-11T10:32:06.000000Z
  
      encoder         : HandBrake 0.9.4 2009112300
  
    Duration: 00:00:12.61, start: 0.000000, bitrate: 202 kb/s
  
      Chapter #0:0: start 0.000000, end 12.612000
  
      Metadata:
  
        title           :
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 320x240, 80 kb/s, 29.65 fps, 29.97 tbr, 90k tbn, 59.31 tbc (default)
  
      Metadata:
  
        creation_time   : 2010-05-11T10:32:06.000000Z
  
        encoder         : JVT/AVC Coding
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 115 kb/s (default)
  
      Metadata:
  
        creation_time   : 2010-05-11T10:32:06.000000Z
  
      Stream #0:2(und): Data: bin_data (text / 0x74786574), 0 kb/s
  
      Metadata:
  
        creation_time   : 2010-05-11T10:32:06.000000Z
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x7faa5400a800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x7faa5400a800] profile Progressive High, level 1.3, 4:2:0, 8-bit
  
  [libx264 @ 0x7faa5400a800] 264 - core 157 r2969 d4099dd - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'notworking.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      encoder         : Lavf58.27.103
  
      Chapter #0:0: start 0.000000, end 12.612000
  
      Metadata:
  
        title           :
  
      Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 320x240, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
  
      Metadata:
  
        creation_time   : 2010-05-11T10:32:06.000000Z
  
        encoder         : Lavc58.52.102 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2010-05-11T10:32:06.000000Z
  
        encoder         : Lavc58.52.102 aac
  
  frame=  378 fps=229 q=-1.0 Lsize=     603kB time=00:00:12.60 bitrate= 391.5kbits/s dup=4 drop=0 speed=7.63x
  
  video:388kB audio:199kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.604359%
  
  [libx264 @ 0x7faa5400a800] frame I:2     Avg QP:22.49  size: 11066
  
  [libx264 @ 0x7faa5400a800] frame P:117   Avg QP:24.98  size:  2340
  
  [libx264 @ 0x7faa5400a800] frame B:259   Avg QP:29.82  size:   390
  
  [libx264 @ 0x7faa5400a800] consecutive B-frames:  3.7% 10.1% 14.3% 72.0%
  
  [libx264 @ 0x7faa5400a800] mb I  I16..4:  1.3% 47.0% 51.7%
  
  [libx264 @ 0x7faa5400a800] mb P  I16..4:  0.1%  1.7%  1.2%  P16..4: 49.5% 18.7% 10.5%  0.0%  0.0%    skip:18.3%
  
  [libx264 @ 0x7faa5400a800] mb B  I16..4:  0.0%  0.0%  0.1%  B16..8: 51.6%  5.8%  1.5%  direct: 0.9%  skip:40.1%  L0:52.8% L1:43.7% BI: 3.5%
  
  [libx264 @ 0x7faa5400a800] 8x8 transform intra:51.8% inter:50.8%
  
  [libx264 @ 0x7faa5400a800] coded y,uvDC,uvAC intra: 95.0% 53.2% 17.0% inter: 14.1% 3.7% 0.0%
  
  [libx264 @ 0x7faa5400a800] i16 v,h,dc,p:  8% 75%  2% 15%
  
  [libx264 @ 0x7faa5400a800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  7% 42% 10%  5%  4%  3% 10%  4% 14%
  
  [libx264 @ 0x7faa5400a800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9% 36% 13%  5%  6%  5% 11%  4% 11%
  
  [libx264 @ 0x7faa5400a800] i8c dc,h,v,p: 62% 24%  9%  5%
  
  [libx264 @ 0x7faa5400a800] Weighted P-Frames: Y:0.9% UV:0.9%
  
  [libx264 @ 0x7faa5400a800] ref P L0: 72.8%  9.6% 15.4%  2.2%  0.0%
  
  [libx264 @ 0x7faa5400a800] ref B L0: 92.4%  7.1%  0.5%
  
  [libx264 @ 0x7faa5400a800] ref B L1: 97.7%  2.3%
  
  [libx264 @ 0x7faa5400a800] kb/s:251.81
  
  [aac @ 0x7faa5500b200] Qavg: 826.560