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• FFMPEG : webm to mp4 quality loss

  11 février, par turboLoop

  When trying to convert a .webm video (two colored animation) to a .mp4 video using ffmpeg (3.4.2 on mac) the result is somewhat blurry. I did research this topic and tried different approaches to solve this. Here is the most promising command :

  



  ffmpeg -i vidoe.webm -qscale 1 video.mp4


  



  However, the quality change is still tremendous, see the difference below.

  



  webm

  



  

  



  mp4

  



  

  



  The resolution of the two videos is the same, however the size dropped from 24,3MB (.webm) to 1,5MB (.mp4) after conversion.

  



  Update

  



  Here is the log of the conversion.

  



  ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, matroska,webm, from 'video.webm':
  Metadata:
    encoder         : whammy
  Duration: 00:00:05.02, start: 0.000000, bitrate: 38755 kb/s
    Stream #0:0: Video: vp8, yuv420p(progressive), 1920x1080, SAR 1:1 DAR 16:9, 60 fps, 60 tbr, 1k tbn, 1k tbc (default)
Please use -q:a or -q:v, -qscale is ambiguous
Stream mapping:
  Stream #0:0 -> #0:0 (vp8 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7f8625800c00] -qscale is ignored, -crf is recommended.
[libx264 @ 0x7f8625800c00] using SAR=1/1
[libx264 @ 0x7f8625800c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f8625800c00] profile High, level 4.2
[libx264 @ 0x7f8625800c00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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 'video.mp4':
  Metadata:
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 60 fps, 15360 tbn, 60 tbc (default)
    Metadata:
      encoder         : Lavc57.107.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=  301 fps= 45 q=-1.0 Lsize=    1417kB time=00:00:04.96 bitrate=2336.4kbits/s speed=0.735x    
video:1412kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.309675%
[libx264 @ 0x7f8625800c00] frame I:2     Avg QP:13.08  size:  8842
[libx264 @ 0x7f8625800c00] frame P:75    Avg QP:24.29  size:  6785
[libx264 @ 0x7f8625800c00] frame B:224   Avg QP:26.38  size:  4102
[libx264 @ 0x7f8625800c00] consecutive B-frames:  0.7%  0.0%  1.0% 98.3%
[libx264 @ 0x7f8625800c00] mb I  I16..4: 68.1% 28.7%  3.2%
[libx264 @ 0x7f8625800c00] mb P  I16..4:  0.1%  2.2%  0.4%  P16..4:  6.5%  4.0%  1.4%  0.0%  0.0%    skip:85.4%
[libx264 @ 0x7f8625800c00] mb B  I16..4:  0.0%  0.2%  0.0%  B16..8:  8.8%  3.0%  0.3%  direct: 0.3%  skip:87.3%  L0:52.1% L1:47.5% BI: 0.4%
[libx264 @ 0x7f8625800c00] 8x8 transform intra:57.7% inter:67.8%
[libx264 @ 0x7f8625800c00] coded y,uvDC,uvAC intra: 25.7% 8.7% 0.9% inter: 3.9% 0.4% 0.0%
[libx264 @ 0x7f8625800c00] i16 v,h,dc,p: 95%  2%  3%  0%
[libx264 @ 0x7f8625800c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17%  5% 48%  5%  7%  6%  5%  4%  3%
[libx264 @ 0x7f8625800c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 14% 31%  6%  7%  7%  6%  5%  4%
[libx264 @ 0x7f8625800c00] i8c dc,h,v,p: 88%  6%  6%  0%
[libx264 @ 0x7f8625800c00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f8625800c00] ref P L0: 55.3%  5.5% 24.8% 14.5%
[libx264 @ 0x7f8625800c00] ref B L0: 75.6% 16.7%  7.7%
[libx264 @ 0x7f8625800c00] ref B L1: 93.9%  6.1%
[libx264 @ 0x7f8625800c00] kb/s:2304.86


  



  Any idea on how to overcome this quality loss ?

  


• Converting mp4 file downloaded via youtube-dl from periscope by using ffmpeg gives error

  20 mars 2018, par MonsterMMORPG

  This is command i have used to download from periscope by using latest youtube-dl

  youtube-dl -v periscopeurl

  Then i am running this command to convert it to a proper MP4

  ffmpeg -i gg.mp4 -c:v libx264 -preset veryslow -crf 18 -c:a aac -b:a 192k -pix_fmt yuv420p gg2.mp4

  I am using latest youtube-dl and ffmpeg

  The error i am getting is shown below

  So how can i fix this error ? The file can not be played properly on k lite mega codec player but it can be played on vlc player however can not go to any specific time etc. so it really needs to be properly re-encoded

  C:\temp>ffmpeg -i gg.mp4 -c:v libx264 -preset veryslow -crf 18 -c:a aac -b:a 192k -pix_fmt yuv420p gg2.mp4
  
  ffmpeg version N-90378-ge4eaaf7bf6 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3l
  
  ame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-li
  
  bvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-l
  
  ibvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enabl
  
  e-avisynth
  
    libavutil      56. 11.100 / 56. 11.100
  
    libavcodec     58. 14.100 / 58. 14.100
  
    libavformat    58. 10.100 / 58. 10.100
  
    libavdevice    58.  2.100 / 58.  2.100
  
    libavfilter     7. 13.100 /  7. 13.100
  
    libswscale      5.  0.102 /  5.  0.102
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gg.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.10.100
  
    Duration: 00:56:45.15, start: 0.000000, bitrate: 174 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x568, 130 kb/s, 23.97 fps, 24 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 35 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  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 @ 00000009eda7ce00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 00000009eda7ce00] profile High, level 3.1
  
  [libx264 @ 00000009eda7ce00] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me
  
  =umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 d
  
  ecimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_look
  
  ahead=60 rc=crf mbtree=1 crf=18.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Too many packets buffered for output stream 0:0.577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
  
  [libx264 @ 00000009eda7ce00] frame I:1     Avg QP:19.87  size: 30456
  
  [libx264 @ 00000009eda7ce00] frame P:36    Avg QP:19.68  size:  8765
  
  [libx264 @ 00000009eda7ce00] frame B:92    Avg QP:25.27  size:  1149
  
  [libx264 @ 00000009eda7ce00] consecutive B-frames:  0.8% 10.7%  0.0% 88.5%  0.0%  0.0%  0.0%  0.0%  0.0%
  
  [libx264 @ 00000009eda7ce00] mb I  I16..4:  8.3% 10.7% 81.0%
  
  [libx264 @ 00000009eda7ce00] mb P  I16..4:  0.9%  1.5%  1.0%  P16..4: 38.8% 16.4% 11.7%  3.1%  1.3%    skip:25.3%
  
  [libx264 @ 00000009eda7ce00] mb B  I16..4:  0.1%  0.1%  0.1%  B16..8: 21.5%  4.6%  2.1%  direct: 2.7%  skip:68.9%  L0:41.2% L1:45.6% BI:13.2%
  
  [libx264 @ 00000009eda7ce00] 8x8 transform intra:28.6% inter:10.9%
  
  [libx264 @ 00000009eda7ce00] direct mvs  spatial:93.5% temporal:6.5%
  
  [libx264 @ 00000009eda7ce00] coded y,uvDC,uvAC intra: 74.0% 65.1% 38.7% inter: 15.2% 8.0% 2.9%
  
  [libx264 @ 00000009eda7ce00] i16 v,h,dc,p: 49% 20% 23%  7%
  
  [libx264 @ 00000009eda7ce00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 12% 33%  3%  5%  5%  5%  5%  7%
  
  [libx264 @ 00000009eda7ce00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 14% 10%  7%  9%  9% 11%  8% 11%
  
  [libx264 @ 00000009eda7ce00] i8c dc,h,v,p: 37% 24% 29% 10%
  
  [libx264 @ 00000009eda7ce00] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 00000009eda7ce00] ref P L0: 73.3%  6.3% 11.1%  1.8%  1.7%  1.2%  1.0%  0.5%  0.5%  0.4%  0.4%  0.4%  0.4%  0.4%  0.4%  0.3%
  
  [libx264 @ 00000009eda7ce00] ref B L0: 94.0%  3.8%  0.9%  0.3%  0.2%  0.2%  0.2%  0.1%  0.1%  0.1%  0.0%  0.0%  0.0%  0.0%  0.0%
  
  [libx264 @ 00000009eda7ce00] ref B L1: 97.7%  2.3%
  
  [libx264 @ 00000009eda7ce00] kb/s:672.35
  
  Conversion failed!
  
  
  
  C:\temp>

• FFmpeg : avconv and ffserver - connection reset by peer

  5 mars 2016, par einsA

  I’m trying to stream a video via ffserver. My dev environment is a Raspberry Pi 2.

  I’m getting an av_interleaved_write_frame(): Connection reset by peer with the following approach :

  pi@raspberrypi:/opt/livefeed $ avconv -f mjpeg -i movie.mjpg -r 20 -b 2000k -vcodec libx264 -preset ultrafast -f flv -metadata streamName="mjpeg_to_flv" -metadata title="converting mjpeg to flv via avconv" http://localhost:8090/feed1.ffm
  
  avconv version 11.4-6:11.4-1~deb8u1+rpi1, Copyright (c) 2000-2014 the Libav developers
  
    built on Jun 16 2015 05:32:34 with gcc 4.9.2 (Raspbian 4.9.2-10)
  
  [mjpeg @ 0x20461e0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mjpeg, from 'movie.mjpg':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj422p, 768x512, 25 fps, 25 tbn
  
  [tcp @ 0x2050bc0] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  [libx264 @ 0x20501a0] using cpu capabilities: none!
  
  [libx264 @ 0x20501a0] profile Constrained Baseline, level 3.0
  
  [libx264 @ 0x20501a0] 264 - core 142 r2431 a5831aa - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=20 scenecut=0 intra_refresh=0 rc=abr mbtree=0 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  Output #0, flv, to 'http://localhost:8090/feed1.ffm':
  
    Metadata:
  
      streamName      : mjpeg_to_flv
  
      title           : converting mjpeg to flv via avconv
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: libx264, yuv420p, 768x512, q=-1--1, 2000 kb/s, 20 fps, 1k tbn, 20 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 libx264
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
  Press ctrl-c to stop encoding
  
  av_interleaved_write_frame(): Connection reset by peer0000.00 bitrate=   0.0kbits/s

  ---

  I am able to stream the file doing it step by step with the following settings and commands :

  ffserver

  ffserver config :

  pi@raspberrypi:/opt/livefeed $ cat ffserver_flv.conf 
  
  # FLV live feed
  
  
  
  Port 8090
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 1000
  
  CustomLog -
  
  
  
  <stream>
  
    Format status
  
    ACL allow localhost
  
    ACL allow 192.168.0.0 192.168.255.255
  
  </stream>
  
  
  
  <feed>
  
    File /tmp/feed_flv.ffm
  
    FileMaxSize 1G
  
    ACL allow 127.0.0.1
  
  </feed>
  
  
  
  <stream>
  
    Format flv
  
    Feed feed1.ffm
  
  
  
    VideoCodec libx264
  
    VideoFrameRate 30
  
    VideoBitRate 800
  
    VideoSize 720x576
  
    AVOptionVideo crf 23
  
    AVOptionVideo preset medium
  
    AVOptionVideo me_range 16
  
    AVOptionVideo qdiff 4
  
    AVOptionVideo qmin 10
  
    AVOptionVideo qmax 51
  
    AVOptionVideo flags +global_header
  
  
  
    NoAudio
  
  </stream>

  starting the server with :

  pi@raspberrypi:/opt/livefeed $ ffserver -v debug -f ffserver_flv.conf
  
  ffserver version N-78909-gfb2f164 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree --enable-libass --enable-libfaac --enable-libmp3lame --enable-libfreetype
  
    libavutil      55. 19.100 / 55. 19.100
  
    libavcodec     57. 27.101 / 57. 27.101
  
    libavformat    57. 28.100 / 57. 28.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 39.100 /  6. 39.100
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  ffserver_flv.conf:6: Port option is deprecated. Use HTTPPort instead.
  
  ffserver_flv.conf:7: BindAddress option is deprecated. Use HTTPBindAddress instead.
  
  ffserver_flv.conf:48: Setting default value for video bit rate tolerance = 200000. Use NoDefaults to disable it.
  
  ffserver_flv.conf:48: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
  
  ffserver_flv.conf:48: Setting default value for video max rate = 49537952. Use NoDefaults to disable it.
  
  ffserver_flv.conf:48: Setting default value for video buffer size = 1600000. Use NoDefaults to disable it.
  
  Sat Mar  5 13:29:46 2016 [file @ 0x2f3d0d0]Setting default whitelist 'file'
  
  Sat Mar  5 13:29:46 2016 [ffm @ 0x2f40bc0]Format ffm probed with size=2048 and score=101
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'time_base' to value '1/30'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'b' to value '800000'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'video_size' to value '720x576'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'me_range' to value '16'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'qdiff' to value '4'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'qmin' to value '10'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'qmax' to value '51'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'flags' to value '+global_header'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'bt' to value '200000'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'rc_eq' to value 'tex^qComp'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'maxrate' to value '1600000'
  
  Sat Mar  5 13:29:46 2016 [NULL @ 0x2f43760]Setting entry with key 'bufsize' to value '1600000'
  
  Sat Mar  5 13:29:46 2016 [AVIOContext @ 0x2f41450]Statistics: 32768 bytes read, 0 seeks
  
  Sat Mar  5 13:29:46 2016 FFserver started.

  avconv

  I’m converting a mjpeg movie (movie.mjpeg) via avconv to flv (movie.flv) :

  pi@raspberrypi:/opt/livefeed $ avconv -f mjpeg -i movie.mjpg -r 20 -b 2000k -vcodec libx264 -preset ultrafast -f flv -metadata streamName="mjpeg_to_flv" -metadata title="converting mjpeg to flv via avconv" movie.flv
  
  avconv version 11.4-6:11.4-1~deb8u1+rpi1, Copyright (c) 2000-2014 the Libav developers
  
    built on Jun 16 2015 05:32:34 with gcc 4.9.2 (Raspbian 4.9.2-10)
  
  [mjpeg @ 0x34f1e0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mjpeg, from 'movie.mjpg':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj422p, 768x512, 25 fps, 25 tbn
  
  [libx264 @ 0x3591a0] using cpu capabilities: none!
  
  [libx264 @ 0x3591a0] profile Constrained Baseline, level 3.0
  
  [libx264 @ 0x3591a0] 264 - core 142 r2431 a5831aa - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=20 scenecut=0 intra_refresh=0 rc=abr mbtree=0 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  Output #0, flv, to 'movie.flv':
  
    Metadata:
  
      streamName      : mjpeg_to_flv
  
      title           : converting mjpeg to flv via avconv
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: libx264, yuv420p, 768x512, q=-1--1, 2000 kb/s, 20 fps, 1k tbn, 20 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 libx264
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
  Press ctrl-c to stop encoding
  
  frame=   93 fps=  9 q=-1.0 Lsize=    1078kB time=4.60 bitrate=1919.3kbits/s    ts/s    
  
  video:1076kB audio:0kB other streams:0kB global headers:0kB muxing overhead: 0.201471%
  
  [libx264 @ 0x3591a0] frame I:1     Avg QP:19.00  size: 35978
  
  [libx264 @ 0x3591a0] frame P:92    Avg QP:21.43  size: 11574
  
  [libx264 @ 0x3591a0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  [libx264 @ 0x3591a0] mb P  I16..4: 25.9%  0.0%  0.0%  P16..4: 53.6%  0.0%  0.0%  0.0%  0.0%    skip:20.5%
  
  [libx264 @ 0x3591a0] final ratefactor: 20.82
  
  [libx264 @ 0x3591a0] coded y,uvDC,uvAC intra: 28.9% 46.9% 18.2% inter: 33.7% 39.8% 2.8%
  
  [libx264 @ 0x3591a0] i16 v,h,dc,p: 29% 30% 28% 14%
  
  [libx264 @ 0x3591a0] i8c dc,h,v,p: 53% 26% 15%  7%
  
  [libx264 @ 0x3591a0] kb/s:1893.82

  send flv to ffserver

  pi@raspberrypi:/opt/livefeed $ ffmpeg -stream_loop -1 -i movie.flv http://localhost:8090/feed1.ffm
  
  ffmpeg version N-78909-gfb2f164 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree --enable-libass --enable-libfaac --enable-libmp3lame --enable-libfreetype
  
    libavutil      55. 19.100 / 55. 19.100
  
    libavcodec     57. 27.101 / 57. 27.101
  
    libavformat    57. 28.100 / 57. 28.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 39.100 /  6. 39.100
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, flv, from 'movie.flv':
  
    Metadata:
  
      streamName      : mjpeg_to_flv
  
      title           : converting mjpeg to flv via avconv
  
      encoder         : Lavf56.1.0
  
    Duration: 00:00:04.65, start: 0.000000, bitrate: 1898 kb/s
  
      Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 768x512, 2000 kb/s, 20 fps, 20 tbr, 1k tbn, 40 tbc
  
  [tcp @ 0x30d2920] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  [tcp @ 0x329a080] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  [libx264 @ 0x325fb30] using cpu capabilities: ARMv6 NEON
  
  [libx264 @ 0x325fb30] profile High, level 3.1
  
  [libx264 @ 0x325fb30] 264 - core 148 r2665 a01e339 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=10 qpmax=51 qpstep=4 vbv_maxrate=1600 vbv_bufsize=1600 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  Output #0, ffm, to 'http://localhost:8090/feed1.ffm':
  
    Metadata:
  
      streamName      : mjpeg_to_flv
  
      title           : converting mjpeg to flv via avconv
  
      creation_time   : now
  
      encoder         : Lavf57.28.100
  
      Stream #0:0: Video: h264 (libx264), yuv420p, 720x576, q=10-51, 800 kb/s, 20 fps, 1000k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc57.27.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 1600000/0/800000 buffer size: 1600000 vbv_delay: -1
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  Past duration 0.999992 too large
  
      Last message repeated 2 times
  
  Past duration 0.999992 too large      4kB time=00:00:00.00 bitrate=N/A dup=5 drop=0 speed=   0x    
  
      Last message repeated 3 times
  
  Past duration 0.999992 too large      4kB time=00:00:00.00 bitrate=N/A dup=9 drop=0 speed=   
  
  [croped]    
  
  video:968kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.719636%
  
  [libx264 @ 0x325fb30] frame I:11    Avg QP:22.49  size: 13888
  
  [libx264 @ 0x325fb30] frame P:487   Avg QP:16.10  size:  1382
  
  [libx264 @ 0x325fb30] frame B:980   Avg QP:21.31  size:   168
  
  [libx264 @ 0x325fb30] consecutive B-frames: 11.0%  1.8%  0.4% 86.9%
  
  [libx264 @ 0x325fb30] mb I  I16..4: 11.5% 81.2%  7.3%
  
  [libx264 @ 0x325fb30] mb P  I16..4:  1.6%  5.0%  0.2%  P16..4: 12.0%  1.6%  0.7%  0.0%  0.0%    skip:79.0%
  
  [libx264 @ 0x325fb30] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  5.8%  0.1%  0.0%  direct: 0.0%  skip:94.1%  L0:55.3% L1:44.4% BI: 0.3%
  
  [libx264 @ 0x325fb30] 8x8 transform intra:75.4% inter:88.7%
  
  [libx264 @ 0x325fb30] coded y,uvDC,uvAC intra: 38.6% 48.2% 14.9% inter: 1.5% 2.3% 0.0%
  
  [libx264 @ 0x325fb30] i16 v,h,dc,p: 28% 32% 11% 28%
  
  [libx264 @ 0x325fb30] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 21% 31%  3%  4%  4%  4%  4%  4%
  
  [libx264 @ 0x325fb30] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 25% 23%  4%  7%  5%  7%  4%  3%
  
  [libx264 @ 0x325fb30] i8c dc,h,v,p: 63% 20% 14%  4%
  
  [libx264 @ 0x325fb30] Weighted P-Frames: Y:1.6% UV:1.2%
  
  [libx264 @ 0x325fb30] ref P L0: 67.5% 11.6% 13.8%  6.8%  0.3%
  
  [libx264 @ 0x325fb30] ref B L0: 58.7% 40.4%  0.9%
  
  [libx264 @ 0x325fb30] ref B L1: 96.2%  3.8%
  
  [libx264 @ 0x325fb30] kb/s:160.83
  
  Exiting normally, received signal 2.

  On another machine I can open the flv-stream via VLC by opening the address http://ip.running.ffserver:8090/live.flv.

  So why does it works step by step via the movie.flv file and not directly ?

  What is the difference between

  • avconv -f mjpeg -i movie.mjpg -r 20 -b 2000k -vcodec libx264 -preset ultrafast -f flv -metadata streamName="mjpeg_to_flv" -metadata title="converting mjpeg to flv via avconv" movie.flv
    followed by
    ffmpeg -stream_loop -1 -i movie.flv http://localhost:8090/feed1.ffm and

  • avconv -f mjpeg -i movie.mjpg -r 20 -b 2000k -vcodec libx264 -preset ultrafast -f flv -metadata streamName="mjpeg_to_flv" -metadata title="converting mjpeg to flv via avconv" http://localhost:8090/feed1.ffm ? Why ends this command with a av_interleaved_write_frame(): Connection reset by peer ?

  ---

  Informations and logs

  • ffserver log (both times) :

    Sat Mar  5 13:54:08 2016 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 4096

  • ffserver version

    pi@raspberrypi:/opt/livefeed $ ffserver -version
    
    ffserver version N-78909-gfb2f164 Copyright (c) 2000-2016 the FFmpeg developers
    
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
    
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree --enable-libass --enable-libfaac --enable-libmp3lame --enable-libfreetype
    
    libavutil      55. 19.100 / 55. 19.100
    
    libavcodec     57. 27.101 / 57. 27.101
    
    libavformat    57. 28.100 / 57. 28.100
    
    libavdevice    57.  0.101 / 57.  0.101
    
    libavfilter     6. 39.100 /  6. 39.100
    
    libswscale      4.  0.100 /  4.  0.100
    
    libswresample   2.  0.101 /  2.  0.101
    
    libpostproc    54.  0.100 / 54.  0.100

  • ffmpeg version

    pi@raspberrypi:/opt/livefeed $ ffmpeg -version
    
    ffmpeg version N-78909-gfb2f164 Copyright (c) 2000-2016 the FFmpeg developers
    
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
    
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree --enable-libass --enable-libfaac --enable-libmp3lame --enable-libfreetype
    
    libavutil      55. 19.100 / 55. 19.100
    
    libavcodec     57. 27.101 / 57. 27.101
    
    libavformat    57. 28.100 / 57. 28.100
    
    libavdevice    57.  0.101 / 57.  0.101
    
    libavfilter     6. 39.100 /  6. 39.100
    
    libswscale      4.  0.100 /  4.  0.100
    
    libswresample   2.  0.101 /  2.  0.101
    
    libpostproc    54.  0.100 / 54.  0.100

  • avconv version :

    pi@raspberrypi:/opt/livefeed $ avconv -version
    
    avconv version 11.4-6:11.4-1~deb8u1+rpi1, Copyright (c) 2000-2014 the Libav developers
    
    built on Jun 16 2015 05:32:34 with gcc 4.9.2 (Raspbian 4.9.2-10)
    
    avconv 11.4-6:11.4-1~deb8u1+rpi1
    
    libavutil     54.  3. 0 / 54.  3. 0
    
    libavcodec    56.  1. 0 / 56.  1. 0
    
    libavformat   56.  1. 0 / 56.  1. 0
    
    libavdevice   55.  0. 0 / 55.  0. 0
    
    libavfilter    5.  0. 0 /  5.  0. 0
    
    libavresample  2.  1. 0 /  2.  1. 0
    
    libswscale     3.  0. 0 /  3.  0. 0

  Thanks and cheers

  Clemens