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• FFMPEG - Converting any kind of file to Mp4 compatible with IOS and Flash

  5 février 2013, par arashaga

  I am struggling with FFmpeg whithing Drupal Video Module to produce files to MP4 that is compatible with IOS and Flash Player10 and up.
  I have used the following commands so far, please note that the variables starting with " !" are placeholders and will be replaces with the proper items :

  FFmpeg -strict experimental -y -i !videofile -pass 1 -s !widthx!height -b:v 500k -threads 0 -vcodec libx264 -vf "pad=!paddingwidth:!paddingheight:!paddingleft:!paddingtop:000000" -preset slow -an !convertfile
  
  
  
  FFmpeg -strict experimental -y -i !videofile -pass 2 -s !widthx!height -b:v 500k -threads 0 -vcodec libx264 -vf "pad=!paddingwidth:!paddingheight:!paddingleft:!paddingtop:000000" -preset slow -acodec aac -ab 128k !convertfile

  The above command produce an error as :

  error executing command for rendering preset HTML5 MP4, command #1 :

  nice -n 19 /usr/bin/ffmpeg/ffmpeg -y -i '80137db8c3_1334836277_int_tr_19.mp4' -s 176x100 -b:v 500k -threads 0 -vcodec libx264 -preset slow -acodec aac -ab 128k '/converted/80137db8c3_1334836277_int_tr_19.mp4' 2>&1
  
  
  
  Output:
  
  
  
  ffmpeg version git-2013-02-01-5a67e30 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Feb  1 2013 14:23:14 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
    configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
  
    libavutil      52. 17.100 / 52. 17.100
  
    libavcodec     54. 91.100 / 54. 91.100
  
    libavformat    54. 61.104 / 54. 61.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 35.100 /  3. 35.100
  
    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 '80137db8c3_1334836277_int_tr_19.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      creation_time   : 2011-03-28 00:12:26
  
    Duration: 00:02:01.14, start: 0.000000, bitrate: 703 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 601 kb/s, 29.96 fps, 29.92 tbr, 1k tbn, 59.83 tbc
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s
  
      Metadata:
  
        creation_time   : 2011-03-28 00:12:27
  
        handler_name    : (C) 2007 Google Inc. v08.13.2007.
  
  [libx264 @ 0x34ec060] using SAR=100/99
  
  [libx264 @ 0x34ec060] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
  
  [libx264 @ 0x34ec060] profile High, level 2.0
  
  [libx264 @ 0x34ec060] 264 - core 129 r2245 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=12 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=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.
  
  Alternatively use the non experimental encoder 'libfaac'.

  Another command that I used is :

  FFmpeg -i !videofile -an -pass 1 -vcodec libx264 -preset slow -b 500k -threads auto !convertfile
  
  
  
  FFMpeg -y -i !videofile -acodec libfaac -ab 128k -pass 2 -vcodec libx264 -preset slow -b 500k -threads auto !convertfile

  Output for the first pass :

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'comiccon.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41
  
      creation_time   : 2012-08-15 17:12:37
  
    Duration: 01:17:15.93, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 636 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 63 kb/s
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : SoundHandler
  
  Please use -b:a or -b:v, -b is ambiguous
  
  
  
  using SAR=1/1
  
  [libx264 @ 0x1c39be0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
  
  [libx264 @ 0x1c39be0] profile Main, level 3.0
  
  [libx264 @ 0x1c39be0] 264 - core 129 r2245 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'comiccon.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41
  
      encoder         : Lavf54.61.104
  
      Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, pass 1, 500 kb/s, 15360 tbn, 30 tbc
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : VideoHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=139078 fps=279 q=32766.0 Lsize=  286145kB time=01:17:15.86 bitrate= 505.6kbits/s    
  
  video:284758kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.487000%
  
  [libx264 @ 0x1c39be0] frame I:656   Avg QP:19.51  size: 21457
  
  [libx264 @ 0x1c39be0] frame P:76006 Avg QP:22.19  size:  3141
  
  [libx264 @ 0x1c39be0] frame B:62416 Avg QP:26.38  size:   621
  
  [libx264 @ 0x1c39be0] consecutive B-frames: 32.3% 17.5% 18.6% 31.6%
  
  [libx264 @ 0x1c39be0] mb I  I16..4: 24.5%  0.0% 75.5%
  
  [libx264 @ 0x1c39be0] mb P  I16..4:  7.5%  0.0%  0.0%  P16..4: 40.5%  0.0%  0.0%  0.0%  0.0%    skip:52.1%
  
  [libx264 @ 0x1c39be0] mb B  I16..4:  1.4%  0.0%  0.0%  B16..8: 12.0%  0.0%  0.0%  direct: 2.9%  skip:83.7%  L0:41.1% L1:41.6% BI:17.3%
  
  [libx264 @ 0x1c39be0] final ratefactor: 23.45
  
  [libx264 @ 0x1c39be0] direct mvs  spatial:95.3% temporal:4.7%
  
  [libx264 @ 0x1c39be0] coded y,uvDC,uvAC intra: 37.6% 42.8% 11.8% inter: 8.9% 8.2% 0.5%
  
  [libx264 @ 0x1c39be0] i16 v,h,dc,p: 43% 28% 19% 10%
  
  [libx264 @ 0x1c39be0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 21% 11%  6%  4%  5%  4%  6%  6%
  
  [libx264 @ 0x1c39be0] i8c dc,h,v,p: 57% 19% 20%  4%
  
  [libx264 @ 0x1c39be0] Weighted P-Frames: Y:1.4% UV:0.5%
  
  [libx264 @ 0x1c39be0] kb/s:503.18

  output for the second pass :

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'comiccon.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41
  
      creation_time   : 2012-08-15 17:12:37
  
    Duration: 01:17:15.93, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 636 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 63 kb/s
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : SoundHandler
  
  Please use -b:a or -b:v, -b is ambiguous
  
  [libx264 @ 0x3247f80] using SAR=1/1
  
  [libx264 @ 0x3247f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
  
  [libx264 @ 0x3247f80] profile High, level 3.0
  
  [libx264 @ 0x3247f80] 264 - core 129 r2245 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=2pass mbtree=1 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'comiccon.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41
  
      encoder         : Lavf54.61.104
  
      Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, pass 2, 500 kb/s, 15360 tbn, 30 tbc
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s
  
      Metadata:
  
        creation_time   : 2012-08-15 17:12:37
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> libfaac)
  
  Press [q] to stop, [?] for help
  
  frame=139078 fps=206 q=32766.0 Lsize=  357252kB time=01:17:15.93 bitrate= 631.3kbits/s    
  
  video:282992kB audio:69592kB subtitle:0 global headers:0kB muxing overhead 1.324238%
  
  [libx264 @ 0x3247f80] frame I:656   Avg QP:19.61  size: 20433
  
  [libx264 @ 0x3247f80] frame P:76006 Avg QP:23.07  size:  2996
  
  [libx264 @ 0x3247f80] frame B:62416 Avg QP:26.23  size:   780
  
  [libx264 @ 0x3247f80] consecutive B-frames: 32.3% 17.5% 18.6% 31.6%
  
  [libx264 @ 0x3247f80] mb I  I16..4: 17.2% 37.8% 44.9%
  
  [libx264 @ 0x3247f80] mb P  I16..4:  2.9%  3.7%  1.2%  P16..4: 30.3%  6.1%  3.4%  0.0%  0.0%    skip:52.5%
  
  [libx264 @ 0x3247f80] mb B  I16..4:  0.5%  0.6%  0.3%  B16..8: 25.9%  2.2%  0.5%  direct: 0.9%  skip:69.3%  L0:51.4% L1:43.0% BI: 5.7%
  
  [libx264 @ 0x3247f80] 8x8 transform intra:45.9% inter:51.5%
  
  [libx264 @ 0x3247f80] direct mvs  spatial:85.5% temporal:14.5%
  
  [libx264 @ 0x3247f80] coded y,uvDC,uvAC intra: 47.3% 49.2% 13.5% inter: 9.0% 9.4% 0.5%
  
  [libx264 @ 0x3247f80] i16 v,h,dc,p: 38% 27% 13% 22%
  
  [libx264 @ 0x3247f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 16% 14%  5%  5%  7%  7%  8%  9%
  
  [libx264 @ 0x3247f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 15%  9%  6%  7%  8%  7%  8%  8%
  
  [libx264 @ 0x3247f80] i8c dc,h,v,p: 49% 22% 20%  8%
  
  [libx264 @ 0x3247f80] Weighted P-Frames: Y:1.4% UV:0.5%
  
  [libx264 @ 0x3247f80] ref P L0: 79.3% 10.4%  6.8%  1.6%  1.2%  0.7%  0.0%
  
  [libx264 @ 0x3247f80] ref B L0: 93.6%  4.8%  1.2%  0.3%
  
  [libx264 @ 0x3247f80] ref B L1: 96.6%  3.4%
  
  [libx264 @ 0x3247f80] kb/s:500.06

  The above command produces the file correctly however it cannot be played in flash player. One thing that I noticed is this may happen if the input file is mp4 as well. This command is executed for users uploading files, so the input file could be any format.

  Below is the information about my FFmpeg version :

  ffmpeg version git-2013-02-01-5a67e30 Copyright (c) 2000-2013 the
  FFmpeg developers built on Feb 1 2013 14:23:14 with gcc 4.6
  (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration : —enable-gpl
  —enable-libass —enable-libfaac —enable-libfdk-aac —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-librtmp —enable-libtheora —enable-libvorbis —enable-libvpx —enable-libx264 —enable-nonfree —enable-version3 libavutil 52. 17.100 / 52. 17.100
  libavcodec 54. 91.100 / 54. 91.100
  libavformat 54. 61.104 / 54. 61.104
  libavdevice 54. 3.103 / 54. 3.103
  libavfilter 3. 35.100 / 3. 35.100
  libswscale 2. 2.100 / 2. 2.100
  libswresample 0. 17.102 / 0. 17.102
  libpostproc 52. 2.100 / 52. 2.1

  Thanks,

• ffmpeg covert video in different format and also a cut same time

  17 juillet 2017, par Mahesh Prajapati

  i am converting video one format to another format but i want to also a cut it from some of the time duration so please help me to resolve that problem.
  hear some of the sample code. in blow command height and width is given dynamically.

  $conv_cmd="$ffmpeg -y -i ".$source_video_path.$newfilename."  -c:v libx264 -preset veryfast -s ".$width[1]."x".$height[1]."  -b:a 196k -b:v 1000K  uploads/all_tags_videos/".$con_file_name.".mp4 2>&1";

  that is convert code it’s give me error

  [0] => ffmpeg version git-2017-04-04-1229007 Copyright (c) 2000-2017 the FFmpeg developers
  
  [1] =>   built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
  
  [2] =>   configuration: --prefix=/usr/local/ffmpeg --extra-cflags='-I$/usr/local/ffmpeg/include -fPIC' --extra-ldflags=-L/usr/local/ffmpeg/lib/ --bindir=/usr/sbin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libspeex --enable-shared --enable-libfdk_aac --enable-libopus --enable-libfreetype --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
  
  [3] =>   libavutil      55. 59.100 / 55. 59.100
  
  [4] =>   libavcodec     57. 90.100 / 57. 90.100
  
  [5] =>   libavformat    57. 72.100 / 57. 72.100
  
  [6] =>   libavdevice    57.  7.100 / 57.  7.100
  
  [7] =>   libavfilter     6. 83.100 /  6. 83.100
  
  [8] =>   libswscale      4.  7.100 /  4.  7.100
  
  [9] =>   libswresample   2.  8.100 /  2.  8.100
  
  [10] =>   libpostproc    54.  6.100 / 54.  6.100
  
  [11] => Input #0, flv, from '/home/cigarsnearme/public_html/wp-content/themes/Newspaper_child/cigar_template/pageshortcode/status_tag_photos_upload_plugin/uploads/all_tags_videos/33-cc49pFlruuscbPhtmIaPFxjINpdGUx-1500249600.flv':
  
  [12] =>   Metadata:
  
  [13] =>     encoder         : Lavf53.24.2
  
  [14] =>   Duration: 00:00:11.00, start: 0.000000, bitrate: 1525 kb/s
  
  [15] =>     Stream #0:0: Audio: aac (LC), 48000 Hz, 5.1, fltp, 384 kb/s
  
  [16] =>     Stream #0:1: Video: flv1, yuv420p, 1280x720, 1200 kb/s, 1k fps, 25 tbr, 1k tbn
  
  [17] => Stream mapping:
  
  [18] =>   Stream #0:1 -> #0:0 (flv1 (flv) -> h264 (libx264))
  
  [19] =>   Stream #0:0 -> #0:1 (aac (native) -> aac (native))
  
  [20] => Press [q] to stop, [?] for help
  
  [21] => [libx264 @ 0x10fe7a0] using cpu capabilities: none!
  
  [22] => [libx264 @ 0x10fe7a0] profile High, level 3.1
  
  [23] => [libx264 @ 0x10fe7a0] 264 - core 148 r2762 90a61ec - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=22 lookahead_threads=5 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [24] => [AVFilterGraph @ 0x1d73e60] Error initializing threading.
  
  [25] => [AVFilterGraph @ 0x1d73e60] Error creating filter 'anull'
  
  [26] => Error reinitializing filters!
  
  [27] => Failed to inject frame into filter network: Cannot allocate memory
  
  [28] => Error while processing the decoded data for stream #0:0
  
  [29] => [libx264 @ 0x10fe7a0] final ratefactor: 28.36
  
  [30] => Conversion failed!

• Can't play rtp stream from ffmpeg/avconv, no data received

  6 mars 2014, par Foo Barazz

  I started avserver on my Raspberry Pi, webcam attached I read from /dev/video0 with

  pi@raspberrypi $ avconv -f video4linux2 -i /dev/video0 -vcodec mpeg2video -r 25 - pix_fmt yuv420p -me_method epzs -b 2600k -bt 256k -f rtp rtp://192.168.0.124:8090
  
  
  
  avconv version 0.8.6-6:0.8.6-1+rpi1, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 31 2013 13:58:10 with gcc 4.6.3
  
  [video4linux2 @ 0x17c1720] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, video4linux2, from '/dev/video0':
  
    Duration: N/A, start: 615.594215, bitrate: 36864 kb/s
  
      Stream #0.0: Video: rawvideo, yuyv422, 320x240, 36864 kb/s, 30 tbr, 1000k tbn, 30 tbc
  
  [buffer @ 0x17c16e0] w:320 h:240 pixfmt:yuyv422
  
  [avsink @ 0x17c2f00] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x17c34c0] w:320 h:240 fmt:yuyv422 -> w:320 h:240 fmt:yuv420p flags:0x4
  
  Output #0, rtp, to 'rtp://192.168.0.124:8090':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: mpeg2video, yuv420p, 320x240, q=2-31, 2600 kb/s, 90k tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo -> mpeg2video)
  
  SDP:
  
  v=0
  
  o=- 0 0 IN IP4 127.0.0.1
  
  s=No Name
  
  c=IN IP4 192.168.0.124
  
  t=0 0
  
  a=tool:libavformat 53.21.1
  
  m=video 8090 RTP/AVP 32
  
  b=AS:2600
  
  
  
  Press ctrl-c to stop encoding
  
  frame=  576 fps= 25 q=2.0 size=    2133kB time=23.00 bitrate= 759.8kbits/s dup=390 drop=0    
  
  frame=  590 fps= 25 q=2.0 size=    2191kB time=23.56 bitrate= 762.0kbits/s dup=400 drop=0    
  
  frame= 1320 fps= 25 q=2.0 size=    4932kB time=52.76 bitrate= 765.8kbits/s dup=908 drop=0
  
  ...

  Seems to work fine, it reads data from the webcam.

  Now I'm trying to simply play with ffplay from my Mac with

  $ ffplay rtp://192.168.0.124:8090
  
  ffplay version 1.2.4 Copyright (c) 2003-2013 the FFmpeg developers
  
    built on Mar  1 2014 15:18:21 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
  
    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
  
      nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
  
      nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
  
      nan A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0 
  
      ...

  The video doesn't open and it seems to not reading any data from the Raspberry Pi.

  I use the default configuration for avserver.
  The webcam is definitely working as I managed to just write out images with avconv from it.

  What did I miss ?