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  • What causes Firefox to refuse playing one specific MP4 that plays well on other browsers, resolution being the only difference ?

    3 décembre 2014, par Faro

    I’m a developer for a PHP powered website that allows the upload of videos which get converted to MP4 using ffmpeg. This setup worked pretty well so far, however today I came across a report of a user that couldn’t play one of the files in Firefox.

    I was unable to replicate the issue on my own machine at first, but using a fresh install of Windows 7 I actually got the same issue : The file will not play in Firefox, but works fine in Chrome. If called up directly, Firefox will say "Video can’t be played because the file is corrupt".
    When downloaded, Windows will also not create a thumbnail of the video for the file and WMP will only play the audio part.

    On my own machine the file works perfectly in WMP which made me wonder if it could be a codec issue (I do have the K-Lite Codec Pack installed), however I’ve compared the file to a working one and the only difference is the resolution, filesize and the format profile which is "High@L3.1" for a working file with a 720p resolution and "High@L4.0" for the non-working one (which is 1600x1200).

    I then read through the Wikipedia article on H.264/MPEG-4 AVC and began to wonder if the level might be the issue, and the tool I used (XMedia Recode) actually did not allow me to set a height bigger than 1080 on Level 4, however when I set the level to 5 and encoded the file again, it still wouldn’t play.

    I did find a note on the MDN page of supported formats which reads :

    Firefox/Firefox for Android/Firefox OS supports the format in some cases, but only when a third-party decoder is available, and the device hardware can handle the profile used to encode the MP4.

    I’m assuming that is why the codec pack would allow Firefox to play even the ’broken’ file on my machine, I still don’t understand though why Firefox does play some files but not this one, especially when Chrome on the same machine plays all of them.

    The line in PHP that starts the conversion is as follows :

    exec("/usr/local/bin/ffmpeg '-i' '" . $file_in . "' '-qscale' '4' '-y' '-threads' '1' '-acodec' 'libvo_aacenc' '-vcodec' 'h264' '" . $file_out . "' 2>&1", $buffer, $success);

    This should produce correct files, and this is indeed the first time a file has issues.

    MediaInfo provides this data for the file stream :

    Video
    ID                                       : 1
    Format                                   : AVC
    Format/Info                              : Advanced Video Codec
    Format profile                           : High@L4.0
    Format settings, CABAC                   : Yes
    Format settings, ReFrames                : 4 frames
    Codec ID                                 : avc1
    Codec ID/Info                            : Advanced Video Coding
    Duration                                 : 12mn 26s
    Bit rate                                 : 77.7 Kbps
    Width                                    : 1 600 pixels
    Height                                   : 1 200 pixels
    Display aspect ratio                     : 4:3
    Frame rate mode                          : Constant
    Frame rate                               : 30.000 fps
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Bits/(Pixel*Frame)                       : 0.001
    Stream size                              : 6.92 MiB (36%)
    Writing library                          : x264 core 142 r14 956c8d8
    Encoding settings                        : 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=1 / 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
    Language                                 : English

    Audio
    ID                                       : 2
    Format                                   : AAC
    Format/Info                              : Advanced Audio Codec
    Format profile                           : LC
    Codec ID                                 : 40
    Duration                                 : 12mn 26s
    Duration_LastFrame                       : -10ms
    Bit rate mode                            : Constant
    Bit rate                                 : 128 Kbps
    Channel(s)                               : 2 channels
    Channel positions                        : Front: L R
    Sampling rate                            : 44.1 KHz
    Compression mode                         : Lossy
    Stream size                              : 11.4 MiB (60%)
    Language                                 : English

    I’ve uploaded a zip with 3 versions of the file, the untouched one, the converted one with the same settings the website would use, and another converted one with level 5.

    Maybe I’m missing something obvious, but I couldn’t find anything wrong with it, what do I need to change in order to produce a file that will work natively in Firefox ?

    Also, this is my first question on SO, so if you see anything that I can improve, please let me know :-)

    Edit : This is the output of calling ffmpeg (with the faststart option)

    /usr/local/bin/ffmpeg '-i' '49cf594e91d0dac376aa0b2b96972ded.mp4' '-movflags' '+faststart' '-qscale' '4' '-y' '-threads' '1' '-acodec' 'libvo_aacenc' '-vcodec' 'h264' 'test.mp4'

    ffmpeg version 1.2.5-   http://johnvansickle.com/ffmpeg/    Copyright (c) 2000-2014 the FFmpeg developers
     built on Jan 22 2014 20:28:02 with gcc 4.8 (Debian 4.8.2-14)
     configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --disable-ffserver
     libavutil      52. 18.100 / 52. 18.100
     libavcodec     54. 92.100 / 54. 92.100
     libavformat    54. 63.104 / 54. 63.104
     libavdevice    54.  3.103 / 54.  3.103
     libavfilter     3. 42.103 /  3. 42.103
     libswscale      2.  2.100 /  2.  2.100
     libswresample   0. 17.102 /  0. 17.102
     libpostproc    52.  2.100 / 52.  2.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '49cf594e91d0dac376aa0b2b96972ded.mp4':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf54.63.104
     Duration: 00:12:26.37, start: 0.036281, bitrate: 214 kb/s
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1600x1200 [SAR 1:1 DAR 4:3], 77 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
       Metadata:
         handler_name    : SoundHandler
    Please use -q:a or -q:v, -qscale is ambiguous
    [libx264 @ 0x2802ac0] using SAR=1/1
    [libx264 @ 0x2802ac0] using cpu capabilities: MMX2 SSE2Fast LZCNT
    [libx264 @ 0x2802ac0] profile High, level 4.0
    [libx264 @ 0x2802ac0] 264 - core 142 r14 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=1 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 'test.mp4':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf54.63.104
       Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1600x1200 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 30 tbc
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s
       Metadata:
         handler_name    : SoundHandler
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 -> libx264)
     Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
    Press [q] to stop, [?] for help
    Starting second pass: moving header on top of the file30.77 bitrate= 202.5kbits/s dup=1 drop=0
    frame=15331 fps= 13 q=29.0 Lsize=   13201kB time=00:08:31.03 bitrate= 211.6kbits/s dup=1 drop=0
    video:4673kB audio:7986kB subtitle:0 global headers:0kB muxing overhead 4.286767%
    [libx264 @ 0x2802ac0] frame I:63    Avg QP:12.37  size: 39759
    [libx264 @ 0x2802ac0] frame P:3905  Avg QP:20.36  size:   313
    [libx264 @ 0x2802ac0] frame B:11363 Avg QP:33.67  size:    93
    [libx264 @ 0x2802ac0] consecutive B-frames:  1.1%  0.1%  0.2% 98.6%
    [libx264 @ 0x2802ac0] mb I  I16..4: 48.0% 41.5% 10.5%
    [libx264 @ 0x2802ac0] mb P  I16..4:  0.1%  0.2%  0.0%  P16..4:  0.5%  0.0%  0.0%  0.0%  0.0%    skip:99.1%
    [libx264 @ 0x2802ac0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.3%  0.0%  0.0%  direct: 0.0%  skip:99.7%  L0:50.2% L1:48.9% BI: 0.8%
    [libx264 @ 0x2802ac0] 8x8 transform intra:42.4% inter:36.9%
    [libx264 @ 0x2802ac0] coded y,uvDC,uvAC intra: 6.9% 13.4% 9.4% inter: 0.0% 0.1% 0.0%
    [libx264 @ 0x2802ac0] i16 v,h,dc,p: 82% 17%  1%  0%
    [libx264 @ 0x2802ac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 49%  0%  0%  0%  0%  0%  0%
    [libx264 @ 0x2802ac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 20% 18%  3%  4%  4%  4%  4%  3%
    [libx264 @ 0x2802ac0] i8c dc,h,v,p: 80% 12%  7%  1%
    [libx264 @ 0x2802ac0] Weighted P-Frames: Y:0.3% UV:0.3%
    [libx264 @ 0x2802ac0] ref P L0: 74.7%  3.8% 10.6% 10.9%  0.0%
    [libx264 @ 0x2802ac0] ref B L0: 70.3% 28.9%  0.8%
    [libx264 @ 0x2802ac0] ref B L1: 97.9%  2.1%
    [libx264 @ 0x2802ac0] kb/s:74.90
  • ffmpeg slideshow video from images creating empty mp4

    27 novembre 2017, par greenthumbtack

    I’m trying to use ffmpeg to create an .mp4 from a set of .JPG files. This is the ffmpeg line I’m using :

    ffmpeg -framerate 1/5 -i image-%03d.JPG output.mp4

    which returns :

    ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 5.2.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
     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
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  2.101 /  1.  2.101
     libpostproc    53.  3.100 / 53.  3.100
    [mjpeg @ 04ee8ca0] Changeing bps to 8
    Input #0, image2, from 'image-%03d.JPG':
     Duration: 00:01:05.00, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 4608x3072, 0.20 tbr, 0.20 tbn, 0.20 tbc
    File 'output.mp4' already exists. Overwrite ? [y/N] y
    No pixel format specified, yuvj422p for H.264 encoding chosen.
    Use -pix_fmt yuv420p for compatibility with outdated media players.
    [libx264 @ 04ef4a40] frame MB size (288x192) > level limit (36864)
    [libx264 @ 04ef4a40] DPB size (4 frames, 221184 mbs) > level limit (3 frames, 184320 mbs)
    [libx264 @ 04ef4a40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 04ef4a40] profile High 4:2:2, level 5.2, 4:2:2 8-bit
    [libx264 @ 04ef4a40] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=1 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 'output.mp4':
     Metadata:
       encoder         : Lavf56.40.101
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj422p(pc), 4608x3072, q=-1--1, 0.20 fps, 16384 tbn, 0.20 tbc
       Metadata:
         encoder         : Lavc56.60.100 libx264
    Stream mapping:
     Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    frame=   13 fps=0.9 q=-1.0 Lsize=   18249kB time=00:00:55.00 bitrate=2718.2kbits/s
    video:18249kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.005057%
    [libx264 @ 04ef4a40] frame I:1     Avg QP:13.94  size:1564617
    [libx264 @ 04ef4a40] frame P:12    Avg QP:13.68  size:1426766
    [libx264 @ 04ef4a40] mb I  I16..4:  2.6% 79.2% 18.2%
    [libx264 @ 04ef4a40] mb P  I16..4:  2.2% 82.9% 14.6%  P16..4:  0.1%  0.0%  0.0%  0.0%  0.0%    skip: 0.2%
    [libx264 @ 04ef4a40] 8x8 transform intra:82.9% inter:79.9%
    [libx264 @ 04ef4a40] coded y,uvDC,uvAC intra: 95.0% 80.5% 67.2% inter: 33.6% 27.6% 11.4%
    [libx264 @ 04ef4a40] i16 v,h,dc,p: 16%  9%  5% 69%
    [libx264 @ 04ef4a40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 20% 24%  6%  8%  6%  8%  6% 10%
    [libx264 @ 04ef4a40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 22% 10%  8% 11%  8% 11%  6%  9%
    [libx264 @ 04ef4a40] i8c dc,h,v,p: 52% 20% 20%  7%
    [libx264 @ 04ef4a40] Weighted P-Frames: Y:8.3% UV:8.3%
    [libx264 @ 04ef4a40] ref P L0: 64.6%  9.0% 11.8%  5.8%  8.8%
    [libx264 @ 04ef4a40] kb/s:2299.79

    and a output.mp4. When I run this file, it ends immediately without showing any images. I don’t see any errors or problems in the code, so I’m not sure what I’m doing wrong. Do I need to increase the video framerate or something else ?

  • 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