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    Un logiciel n’est malheureusement jamais parfait...
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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
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    21 juin 2013, par

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Sur d’autres sites (14756)

  • FFMPEG x264 MP4 Encoding all grey

    7 mars 2013, par Brianjs

    I am currently using FFMPEG v1.1 on CentOS 6.3.

    I configured FFMPEG with :

    ./configure --arch=x86_64  --enable-libmp3lame  --enable-librtmp  --enable-libtheora --enable-libvorbis  --enable-libx264 --enable-pthreads --enable-gpl --enable-runtime-cpudetect

    when I run a simple command to record live input to MP4 by :

    ffmpeg -f video4linux2 -s 640x480 -i /dev/video0 /home/irdb/Desktop/test.mp4

    I get nothing, just a grey screen with some artifacts around the edges. However when I run the same command as .MPG it comes out fine. I need it in MP4 format however.

    On a side note I am running x264-0.120 installed through yum

    My question is, is there a problem with the way I compiled ffmpeg ? Or is it possibly something else ?

    edit :

    Output from example as requested :

    # ffmpeg -f video4linux2 -s 640x480 -t 5 -i /dev/video0 -strict 2 /home/irdb/Desktop/test.mp4
    
ffmpeg version N-50546-g1f5b5b8 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Mar  7 2013 00:17:44 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
    
configuration: --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-   libvorbis --enable-libx264 --enable-pthreads --enable-gpl --enable-runtime-cpudetect
    
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
    
[video4linux2,v4l2 @ 0x3025120] Estimating duration from bitrate, this may be   inaccurate
    
Input #0, video4linux2,v4l2, from '/dev/video0':
    
Duration: N/A, start: 128.640356, bitrate: 147456 kb/s
    
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
    
[libx264 @ 0x3026f80] using cpu capabilities: MMX2 SSE2Fast SSEMisalign LZCNT
    
[libx264 @ 0x3026f80] profile High 4:2:2, level 3.0, 4:2:2 8-bit
    
[libx264 @ 0x3026f80] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec -  Copyleft 2003-2013 - 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 '/home/irdb/Desktop/test.mp4':
    
Metadata:
    
encoder         : Lavf54.63.104
    
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv422p, 640x480, q=-1--1, 15360 tbn, 30 tbc
    
Stream mapping:
    
Stream #0:0 -> #0:0 (rawvideo -> libx264)
    
Press [q] to stop, [?] for help
    
frame=   32 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=21    drframe=   46 fps= 46 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=28 drframe=    62 fps= 41 q=29.0 size=      71kB time=00:00:00.33 bitrate=1735.2kbits/frame=   76 fps=  38 q=29.0 size=     169kB time=00:00:00.80 bitrate=1731.2kbits/frame=   93 fps= 37  q=29.0 size=     311kB time=00:00:01.36 bitrate=1862.3kbits/frame=  107 fps= 35 q=29.0  size=     423kB time=00:00:01.83 bitrate=1891.0kbits/frame=  123 fps= 35 q=29.0 size=      537kB time=00:00:02.36 bitrate=1860.2kbits/frame=  139 fps= 34 q=29.0 size=     664kB  time=00:00:02.90 bitrate=1876.0kbits/frame=  150 fps= 29 q=-1.0 Lsize=    1174kB  time=00:00:04.93 bitrate=1948.7kbits/s dup=81 drop=0    
    
video:1172kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.133409%
    
[libx264 @ 0x3026f80] frame I:2     Avg QP:23.22  size: 28460
    
[libx264 @ 0x3026f80] frame P:136   Avg QP:24.45  size:  8397
    
[libx264 @ 0x3026f80] frame B:12    Avg QP:26.18  size:    42
    
[libx264 @ 0x3026f80] consecutive B-frames: 88.0%  4.0%  0.0%  8.0%
    
[libx264 @ 0x3026f80] mb I  I16..4: 47.1% 28.8% 24.1%
    
[libx264 @ 0x3026f80] mb P  I16..4:  4.3%  1.9%  1.2%  P16..4: 29.0% 11.4%  9.2%      0.0%  0.0%    skip:43.0%
    
[libx264 @ 0x3026f80] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  1.5%  0.0%  0.0%   direct: 0.0%  skip:98.5%  L0:16.5% L1:83.5% BI: 0.0%
    
[libx264 @ 0x3026f80] 8x8 transform intra:26.4% inter:30.7%
    
[libx264 @ 0x3026f80] coded y,uvDC,uvAC intra: 85.2% 95.6% 83.5% inter: 10.9% 38.6% 24.0%
    
[libx264 @ 0x3026f80] i16 v,h,dc,p: 33% 19% 40%  8%
    
[libx264 @ 0x3026f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  6% 12% 55%  5%  3%  4%  4%  3%  8%
    
[libx264 @ 0x3026f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15%  9% 63%  3%  2%  2%  2%  2%  2%
    
[libx264 @ 0x3026f80] i8c dc,h,v,p: 66% 11% 14%  9%
    
[libx264 @ 0x3026f80] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x3026f80] ref P L0: 56.6%  7.5%  8.1% 27.8%
    
[libx264 @ 0x3026f80] ref B L0: 83.3% 16.7%
    
[libx264 @ 0x3026f80] ref B L1: 90.7%  9.3%
    
[libx264 @ 0x3026f80] kb/s:1918.95

  • overlay movie.mov over an image file using AVCONV OR FFMPEG

    6 février 2014, par user1087179

    I am trying to overlay transparent mov or flv over an image.

    I am open to both options using ffmpeg or avconv.

    here is my cmd :

    ffmpeg -i bg.png -i input.mov -vf \
    
'[0:v]setpts=PTS-STARTPTS, pad=iw*2:ih[bg]; \
    
[1:v]setpts=PTS-STARTPTS,scale=720:400[fg]; [bg][fg]overlay=w' -vf yadif -pix_fmt rgba     -y -vcodec qtrle -an output.mov

    I Get this :

    ffmpeg version 0.8.9-4:0.8.9-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
    
  built on Nov  9 2013 19:08:00 with gcc 4.6.3
    
*** THIS PROGRAM IS DEPRECATED ***
    
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
    
Input #0, image2, from '/home/socialvideos/public_html/public/images/blue_bg.png':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: png, rgb24, 720x400, 25 tbr, 25 tbn, 25 tbc
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/home/socialvideos/public_html/actor/opening/1.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 537199360
    
    compatible_brands: qt  
    
    creation_time   : 2014-01-22 18:12:38
    
  Duration: 00:00:09.28, start: 0.000000, bitrate: 119710 kb/s
    
    Stream #1.0(eng): Video: qtrle, bgra, 1280x720, 120236 kb/s, PAR 1280:1280 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2014-01-22 18:12:38
    
    Stream #1.1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2014-01-22 18:12:38
    
    Stream #1.2(eng): Data: tmcd / 0x64636D74, 0 kb/s
    
    Metadata:
    
      creation_time   : 2014-01-22 18:12:47
    
Incompatible pixel format 'rgba' for codec 'qtrle', auto-selecting format 'rgb24'
    
[buffer @ 0x10cf8c0] w:1280 h:720 pixfmt:bgra
    
[yadif @ 0x10c8980] mode:0 parity:-1 auto_enable:0
    
[avsink @ 0x10c8400] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed filter 0 yadif' and the filter 'out'
    
[yadif @ 0x10c8980] auto-inserting filter 'auto-inserted scaler 1' between the filter 'src' and the filter 'Parsed filter 0 yadif'
    
[scale @ 0x10cc9a0] w:1280 h:720 fmt:bgra -> w:1280 h:720 fmt:yuv420p flags:0x4
    
[scale @ 0x10cbdc0] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:rgb24 flags:0x4
    
Output #0, mov, to 'out.mov':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0(eng): Video: qtrle, rgb24, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2014-01-22 18:12:38
    
Stream mapping:
    
  Stream #1.0 -> #0.0
    
Press ctrl-c to stop encoding
    
frame=    2 fps=  0 q=0.0 size=     654kB time=0.08 bitrate=66996.3kbits/s    
    
frame=    5 fps=  4 q=0.0 size=    1213kB time=0.20 bitrate=49692.2kbits/s    
    
frame=    8 fps=  4 q=0.0 size=    2068kB time=0.32 bitrate=52952.9kbits/s    
    
frame=   10 fps=  4 q=0.0 size=    2826kB time=0.40 bitrate=57880.0kbits/s    
    
frame=   12 fps=  4 q=0.0 size=    3621kB time=0.48 bitrate=61805.2kbits/s    
    
frame=   14 fps=  4 q=0.0 size=    4433kB time=0.56 bitrate=64846.9kbits/s    
    
frame=   17 fps=  4 q=0.0 size=    5598kB time=0.68 bitrate=67435.6kbits/s    
    
frame=   19 fps=  4 q=0.0 size=    6368kB time=0.76 bitrate=68643.7kbits/s    
    
frame=   21 fps=  4 q=0.0 size=    7145kB time=0.84 bitrate=69683.8kbits/s    
    
frame=   23 fps=  4 q=0.0 size=    7901kB time=0.92 bitrate=70352.7kbits/s    
    
frame=   26 fps=  4 q=0.0 size=    9179kB time=1.04 bitrate=72298.4kbits/s    
    
frame=   28 fps=  4 q=0.0 size=    9743kB time=1.12 bitrate=71260.9kbits/s    
    
frame=   30 fps=  4 q=0.0 size=   10562kB time=1.20 bitrate=72100.4kbits/s    
    
frame=   32 fps=  4 q=0.0 size=   11375kB time=1.28 bitrate=72802.4kbits/s    
    
frame=   34 fps=  4 q=0.0 size=   12162kB time=1.36 bitrate=73256.3kbits/s    
    
frame=   37 fps=  4 q=0.0 size=   13404kB time=1.48 bitrate=74190.5kbits/s    
    
frame=   39 fps=  4 q=0.0 size=   14080kB time=1.56 bitrate=73936.2kbits/s    
    
frame=   41 fps=  4 q=0.0 size=   14763kB time=1.64 bitrate=73744.3kbits/s    
    
frame=   44 fps=  4 q=0.0 size=   15690kB time=1.76 bitrate=73030.4kbits/s    
    
frame=   47 fps=  4 q=0.0 size=   16660kB time=1.88 bitrate=72595.6kbits/s    
    
frame=   49 fps=  4 q=0.0 size=   17418kB time=1.96 bitrate=72798.4kbits/s    
    
frame=   51 fps=  4 q=0.0 size=   18060kB time=2.04 bitrate=72524.8kbits/s    
    
frame=   54 fps=  4 q=0.0 size=   18805kB time=2.16 bitrate=71320.3kbits/s    
    
frame=   56 fps=  4 q=0.0 size=   19498kB time=2.24 bitrate=71305.2kbits/s    
    
frame=   58 fps=  4 q=0.0 size=   20178kB time=2.32 bitrate=71247.7kbits/s    
    
frame=   60 fps=  4 q=0.0 size=   20892kB time=2.40 bitrate=71310.3kbits/s    
    
frame=   63 fps=  4 q=0.0 size=   22028kB time=2.52 bitrate=71609.8kbits/s    
    
frame=   65 fps=  4 q=0.0 size=   22729kB time=2.60 bitrate=71613.6kbits/s    
    
frame=   68 fps=  4 q=0.0 size=   23827kB time=2.72 bitrate=71762.8kbits/s    
    
frame=   71 fps=  4 q=0.0 size=   24865kB time=2.84 bitrate=71724.5kbits/s    
    
frame=   74 fps=  4 q=0.0 size=   26029kB time=2.96 bitrate=72035.8kbits/s    
    
frame=   76 fps=  4 q=0.0 size=   26746kB time=3.04 bitrate=72074.2kbits/s    
    
frame=   79 fps=  4 q=0.0 size=   27642kB time=3.16 bitrate=71659.3kbits/s    
    
frame=   82 fps=  4 q=0.0 size=   28743kB time=3.28 bitrate=71787.0kbits/s    
    
frame=   85 fps=  4 q=0.0 size=   29929kB time=3.40 bitrate=72111.4kbits/s    
    
frame=   87 fps=  4 q=0.0 size=   30602kB time=3.48 bitrate=72037.4kbits/s    
    
frame=   89 fps=  4 q=0.0 size=   31242kB time=3.56 bitrate=71892.2kbits/s    
    
frame=   92 fps=  4 q=0.0 size=   32091kB time=3.68 bitrate=71437.1kbits/s    
    
frame=   95 fps=  4 q=0.0 size=   32972kB time=3.80 bitrate=71080.2kbits/s    
    
frame=   98 fps=  4 q=0.0 size=   34038kB time=3.92 bitrate=71132.0kbits/s    
    
frame=  101 fps=  4 q=0.0 size=   35037kB time=4.04 bitrate=71046.2kbits/s    
    
frame=  104 fps=  4 q=0.0 size=   35901kB time=4.16 bitrate=70697.3kbits/s    
    
frame=  107 fps=  4 q=0.0 size=   36980kB time=4.28 bitrate=70780.7kbits/s    
    
frame=  109 fps=  4 q=0.0 size=   37800kB time=4.36 bitrate=71022.0kbits/s    
    
frame=  111 fps=  4 q=0.0 size=   38488kB time=4.44 bitrate=71011.5kbits/s    
    
frame=  114 fps=  4 q=0.0 size=   39415kB time=4.56 bitrate=70808.9kbits/s    
    
frame=  117 fps=  4 q=0.0 size=   40404kB time=4.68 bitrate=70725.0kbits/s    
    
frame=  119 fps=  4 q=0.0 size=   41076kB time=4.76 bitrate=70691.3kbits/s    
    
frame=  121 fps=  4 q=0.0 size=   41885kB time=4.84 bitrate=70892.5kbits/s    
    
frame=  123 fps=  4 q=0.0 size=   42622kB time=4.92 bitrate=70967.6kbits/s    
    
frame=  125 fps=  4 q=0.0 size=   43368kB time=5.00 bitrate=71054.0kbits/s    
    
frame=  127 fps=  4 q=0.0 size=   44161kB time=5.08 bitrate=71214.6kbits/s    
    
frame=  130 fps=  4 q=0.0 size=   45070kB time=5.20 bitrate=71002.5kbits/s    
    
frame=  132 fps=  4 q=0.0 size=   45782kB time=5.28 bitrate=71032.2kbits/s    
    
frame=  134 fps=  4 q=0.0 size=   46599kB time=5.36 bitrate=71220.3kbits/s    
    
frame=  136 fps=  4 q=0.0 size=   47270kB time=5.44 bitrate=71183.8kbits/s    
    
frame=  138 fps=  4 q=0.0 size=   47865kB time=5.52 bitrate=71034.5kbits/s    
    
frame=  140 fps=  4 q=0.0 size=   48449kB time=5.60 bitrate=70874.3kbits/s    
    
frame=  142 fps=  4 q=0.0 size=   49013kB time=5.68 bitrate=70689.4kbits/s    
    
frame=  144 fps=  4 q=0.0 size=   49613kB time=5.76 bitrate=70560.8kbits/s    
    
frame=  147 fps=  4 q=0.0 size=   50683kB time=5.88 bitrate=70610.9kbits/s    
    
frame=  149 fps=  4 q=0.0 size=   51231kB time=5.96 bitrate=70417.5kbits/s    
    
frame=  151 fps=  4 q=0.0 size=   51734kB time=6.04 bitrate=70166.0kbits/s    
    
frame=  153 fps=  4 q=0.0 size=   52097kB time=6.12 bitrate=69734.9kbits/s    
    
frame=  155 fps=  4 q=0.0 size=   52591kB time=6.20 bitrate=69487.4kbits/s    
    
frame=  157 fps=  4 q=0.0 size=   53374kB time=6.28 bitrate=69624.1kbits/s    
    
frame=  159 fps=  4 q=0.0 size=   54086kB time=6.36 bitrate=69665.9kbits/s    
    
frame=  161 fps=  4 q=0.0 size=   54805kB time=6.44 bitrate=69715.3kbits/s    
    
frame=  163 fps=  4 q=0.0 size=   55574kB time=6.52 bitrate=69826.0kbits/s    
    
frame=  166 fps=  4 q=0.0 size=   56683kB time=6.64 bitrate=69932.4kbits/s    
    
frame=  168 fps=  4 q=0.0 size=   57421kB time=6.72 bitrate=69999.1kbits/s    
    
frame=  170 fps=  4 q=0.0 size=   58230kB time=6.80 bitrate=70150.4kbits/s    
    
frame=  173 fps=  4 q=0.0 size=   59357kB time=6.92 bitrate=70268.0kbits/s    
    
frame=  176 fps=  4 q=0.0 size=   60482kB time=7.04 bitrate=70378.7kbits/s    
    
frame=  179 fps=  4 q=0.0 size=   61346kB time=7.16 bitrate=70187.7kbits/s    
    
frame=  181 fps=  4 q=0.0 size=   62171kB time=7.24 bitrate=70345.9kbits/s    
    
frame=  184 fps=  4 q=0.0 size=   63299kB time=7.36 bitrate=70454.0kbits/s    
    
frame=  186 fps=  4 q=0.0 size=   64031kB time=7.44 bitrate=70502.6kbits/s    
    
frame=  188 fps=  4 q=0.0 size=   64701kB time=7.52 bitrate=70482.4kbits/s    
    
frame=  191 fps=  4 q=0.0 size=   65731kB time=7.64 bitrate=70479.9kbits/s    
    
frame=  194 fps=  4 q=0.0 size=   66823kB time=7.76 bitrate=70543.2kbits/s    
    
frame=  197 fps=  4 q=0.0 size=   67568kB time=7.88 bitrate=70243.5kbits/s    
    
frame=  200 fps=  4 q=0.0 size=   68378kB time=8.00 bitrate=70018.6kbits/s    
    
frame=  203 fps=  4 q=0.0 size=   69112kB time=8.12 bitrate=69724.5kbits/s    
    
frame=  205 fps=  4 q=0.0 size=   69872kB time=8.20 bitrate=69804.1kbits/s    
    
frame=  207 fps=  4 q=0.0 size=   70548kB time=8.28 bitrate=69798.2kbits/s    
    
frame=  210 fps=  4 q=0.0 size=   71469kB time=8.40 bitrate=69699.4kbits/s    
    
frame=  213 fps=  4 q=0.0 size=   72386kB time=8.52 bitrate=69599.5kbits/s    
    
frame=  216 fps=  4 q=0.0 size=   73281kB time=8.64 bitrate=69480.8kbits/s    
    
frame=  219 fps=  4 q=0.0 size=   74241kB time=8.76 bitrate=69427.7kbits/s    
    
frame=  222 fps=  4 q=0.0 size=   75010kB time=8.88 bitrate=69198.2kbits/s    
    
frame=  225 fps=  4 q=0.0 size=   75861kB time=9.00 bitrate=69050.0kbits/s    
    
frame=  227 fps=  4 q=0.0 Lsize=   76442kB time=9.08 bitrate=68966.0kbits/s    
    
video:76439kB audio:0kB global headers:0kB muxing overhead 0.003299%

    However the video generated does not have background image and have white color instead. please help..

  • ffplay : reorder the filters to ensure that inputs of the custom filters are merged...

    29 janvier 2014, par Marton Balint
    ffplay : reorder the filters to ensure that inputs of the custom filters are merged first

    For more info see http://ffmpeg.org/pipermail/ffmpeg-user/2013-December/018761.html
    

    Signed-off-by : Marton Balint <cus@passwd.hu>
    • [DH] ffplay.c

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