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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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  • FFmpeg : Error occurred while encoding audio stream from ac3 to aac

    4 décembre 2015, par akki_2891

    I am using following command to encode my video to h264 and aac audio codec :

    ffmpeg -i sample.mp4 -codec:v libx264 -profile:v high -level:v 4.0 -codec:a libvo_aacenc -b:a 128k output_file.mp4

    Following is a trace of the error i am getting at the console.

    Input #0, mpegts, from 'sample.mp4':
    
  Duration: 00:00:58.08, start: 1.000033, bitrate: 17290 kb/s
    
  Program 1
    
    Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1
    
080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    
    Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fl
    
tp, 448 kb/s
    
    Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090)
    
[libx264 @ 003dc660] using SAR=1/1
    
[libx264 @ 003dc660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 003dc660] profile High, level 4.0
    
[libx264 @ 003dc660] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Cop
    
yright 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
    
block=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 chr
    
oma_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=
    
1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scen
    
ecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmi
    
n=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
[libvo_aacenc @ 03c3c640] Unable to set encoding parameters
    
Output #0, mp4, to 'output_file.mp4':
    
    Stream #0:0: Video: h264, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 90
    
k tbn, 29.97 tbc
    
    Stream #0:1: Audio: aac, 48000 Hz, 5.1(side), s16, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (ac3 -> libvo_aacenc)
    
Error while opening encoder for output stream #0:1 - maybe incorrect parameters
    
such as bit_rate, rate, width or height

    I am really not able to find what possibly could be wrong. I dont want to copy audio codec , i wish to encode it from ac3 to aac

    Also any suggestion to make it lossless

  • ffplay crashed on HLS streaming with toggled -an and -vn options

    19 septembre 2016, par oleg_otvorot

    When I try to start silent(without audio and video streams) playing of HLS (HTTP Live Streaming) by typing

    ffplay -an -vn -i "http://localhost:8080/video/find?startTime=
    
1376716800000&endTime=1376717400000

    I get the next error message on my console :

    ffplay version N-67063-g282c935 Copyright (coffee) 2003-2014 the FFmpeg developers
    
  built on Oct 20 2014 22:10:09 with gcc 4.9.1 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
    
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
    
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
    
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
    
able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
    
 --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
    
libx265 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      54. 10.100 / 54. 10.100
    
  libavcodec     56.  8.102 / 56.  8.102
    
  libavformat    56.  9.101 / 56.  9.101
    
  libavdevice    56.  1.100 / 56.  1.100
    
  libavfilter     5.  2.100 /  5.  2.100
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, hls,applehttp, from 'http://localhost:8080/video/find?startTime=137671
    
6800000&endTime=1376717400000':
    
  Duration: 00:01:50.12, start: 1.418722, bitrate: 0 kb/s
    
  Program 0
    
    Metadata:
    
      variant_bitrate : 0
    
    Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 320x240 [
    
SAR 19:32 DAR 19:24], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 14
    
7 kb/s
    
Failed to open file 'http://localhost:8080/video/find?startTime=1376716800000&en
    
dTime=1376717400000' or configure filtergraph

    Is this bug or feature that ffplay can’t playing video without audio/video stream ? I need to run ffplay programmatically from my java test application to view loadout of my service.

    P.S : I also tried adding the options "-nodisp -an", but that provided the same result as mentioned above.

  • FFmpeg RTSP problem with IP camera

    22 avril 2014, par NoviceAndNovice

    I download FFmpeg windows binary and use ffplay.exe successfully for media files and some Ip Cameras with RTSP support (eg Acti).

    I try ffplay on a Bosch( h264) NDC 265 P camera it does not work. When i start ffplay with debug option i get folllowing

    D:\Test>ffplay -debug 1 rtsp:/XXXXXXXXXX/video
    
FFplay version SVN-r26400, Copyright (c) 2003-2011 the FFmpeg developers
    
  built on Jan 18 2011 04:09:28 with gcc 4.4.2
    
  configuration: --enable-gpl --enable-version3 --enable-libgsm --enable-libvorb
    
is --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg
    
 --enable-libschroedinger --enable-libopencore_amrwb --enable-libopencore_amrnb
    
--enable-libvpx --disable-decoder=libvpx --arch=x86 --enable-runtime-cpudetect -
    
-enable-libxvid --enable-libx264 --enable-librtmp --extra-libs='-lrtmp -lpolarss
    
l -lws2_32 -lwinmm' --target-os=mingw32 --enable-avisynth --enable-w32threads --
    
cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memalign-hack
    
 --enable-shared --disable-static
    
  libavutil     50.36. 0 / 50.36. 0
    
  libavcore      0.16. 1 /  0.16. 1
    
  libavcodec    52.108. 0 / 52.108. 0
    
  libavformat   52.93. 0 / 52.93. 0
    
  libavdevice   52. 2. 3 / 52. 2. 3
    
  libavfilter    1.74. 0 /  1.74. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
[rtsp @ 006db540] SDP:
    
v=0
    
o=- 0 0 IN IP4 XXXXXXXXXX
    
s=LIVE VIEW
    
t=0 0
    
c=IN IP4 0.0.0.0
    
m=video 0 RTP/AVP 35
    
a=rtpmap:35 H264/90000
    
a=control:rtsp://XXXXXXXXXX/video
    
a=recvonly
    
a=fmtp:35 packetization-mode=1;profile-level-id=4d0028;sprop-parameter-sets=Z00A
    
KI2NKAoAt2AgEA==,aO48gA==
    

    
[rtsp @ 006db540] video codec set to: (null)
    
[rtsp @ 006db540] hello state=0
    
[rtsp @ 006db540] Probe buffer size limit 5000000 reached
    
[rtsp @ 006db540] Estimating duration from bitrate, this may be inaccurate
    
Input #0, rtsp, from 'rtsp:/XXXXXXXXXX/video':
    
  Metadata:
    
    title           : LIVE VIEW
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0.0, 4035, 1/90000: Video: [0][0][0][0] / 0x0000, 90k tbr, 90k tbn,
    
90k tbc
    
rtsp:/XXXXXXXXXX/video: c1o3u0l1d7 3n2o1t5 2o.p2e1n  Ac-oVd:e c s0
    
.000 s:0.0 aq=    0KB vq=    0KB sq=    0B f=0/0

    I can play Bosch IP camera with VLC Player...But can not with FFmpeg...

    So

    • Does ffmpeg not support H264 ?

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