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    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Websites made ​​with MediaSPIP

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    This page lists some websites based on MediaSPIP.

  • Menus personnalisés

    14 novembre 2010, par

    MediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
    Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
    Menus créés à l’initialisation du site
    Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...)

Sur d’autres sites (5787)

  • cvCreateFileCapture always returns "NULL"

    4 août 2012, par user1553247

    I am making an iphone-app with Xcode 4.3.3 and OpenCV 2.4

    I used that "cvCreateFileCapture("simtom.mp4")" to get frame from '.mp4' file but unfortunately, cvCreateFileCapture() always returns "NULL".

    What is the problem ?

    Here is my source code.

     CvCapture *m_pMusicVideo;     
    

    
 m_pMusicVideo = cvCreateFileCapture("simtom.mp4");

  • ffmpeg - avcodec_decode_audio3 always returns 0 with aac decoding on android

    26 novembre 2011, par Android007

    I am writing an audio decoder based on ffmpeg for android, where I have to decode aac audio, but because of some reason it always returns 0 bytes decoded.

    Looks like I pass everything right. Can anybody tell me what went wrong in my case.I copied code from ffplay.c.
    What is the reason avcodec_decode_audio3 function always returns zero ?

    Here is the code from ffplay.c :

    AVPacket *pkt_temp = &is->audio_pkt_temp;
    
    AVPacket *pkt = &is->audio_pkt;
    
    AVCodecContext *dec= is->audio_st->codec;
    
    int n, len1, data_size;
    
    double pts;
    

    
          data_size = sizeof(is->audio_buf1);
    
        len1 = avcodec_decode_audio3(dec, (int16_t *)is->audio_buf1, &data_size, pkt_temp);
    
        if (len1 < 0) {
    
            pkt_temp->size = 0;
    
            break;
    
        } 
    

    
       if (data_size <= 0){
    
                   //This block always gets executed.
    
            continue;
    
    }

  • ffmpeg error when using non root user

    29 août 2014, par mkern

    I have installed ffmpeg and it works perfect if you are root or using sudo but it errors out when trying to use it as a non-root user. I have performed the same install on a test VPS and it installs without issue so it appears to be isolated to this cPanel server. I haven’t been able to identify why.

    Non-Root :

    > ffmpeg -v debug -i 1.mov 1.avi ffmpeg version N-65949-g0ddb051
    
> Copyright (c) 2000-2014 the FFmpeg developers   built on Aug 28 2014
    
> 11:39:47 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)  
    
> configuration: --enable-gpl --enable-libmp3lame --enable-libvorbis
    
> --enable-libvpx --enable-libx264   libavutil      54.  7.100 / 54.  7.100   libavcodec     56.  0.101 / 56.  0.101   libavformat    56.  3.100 / 56.  3.100   libavdevice    56.  0.100 / 56.  0.100   libavfilter     5.  0.103 /  5.  0.103   libswscale      3.  0.100 / 
    
> 3.  0.100   libswresample   1.  1.100 /  1.  1.100   libpostproc    53.  0.100 / 53.  0.100 Splitting the commandline. Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'.
    
> Reading option '-i' ... matched as input file with argument '1.mov'.
    
> Reading option '1.avi' ... matched as output file. Finished splitting
    
> the commandline. Parsing a group of options: global . Applying option
    
> v (set logging level) with argument debug. Successfully parsed a group
    
> of options. Parsing a group of options: input file 1.mov. Successfully
    
> parsed a group of options. Opening an input file: 1.mov.
    
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x348fc20] Format mov,mp4,m4a,3gp,3g2,mj2
    
> probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @
    
> 0x348fc20] ISO: File Type Major Brand: qt   [mov,mp4,m4a,3gp,3g2,mj2 @
    
> 0x348fc20] Before avformat_find_stream_info() pos: 698348 bytes
    
> read:39602 seeks:1 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x348fc20] All info
    
> found [mov,mp4,m4a,3gp,3g2,mj2 @ 0x348fc20] After
    
> avformat_find_stream_info() pos: 169190 bytes read:2333362 seeks:67
    
> frames:148 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mov':  
    
> Metadata:
    
>     major_brand     : qt  
    
>     minor_version   : 0
    
>     compatible_brands: qt  
    
>     creation_time   : 2014-06-05 04:40:27
    
>     model           : iPhone 5
    
>     model-eng       : iPhone 5
    
>     encoder         : 7.1.1
    
>     encoder-eng     : 7.1.1
    
>     date            : 2014-06-04T21:40:27-0700
    
>     date-eng        : 2014-06-04T21:40:27-0700
    
>     make            : Apple
    
>     make-eng        : Apple   Duration: 00:00:07.15, start: 0.000023, bitrate: 781 kb/s
    
>     Stream #0:0(und), 41, 1/600: Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 1/1200, 710 kb/s, 29.09
    
> fps, 600 tbr, 600 tbn, 1200 tbc (default)
    
>     Metadata:
    
>       rotate          : 90
    
>       creation_time   : 2014-06-05 04:40:27
    
>       handler_name    : Core Media Data Handler
    
>       encoder         : H.264
    
>     Side data:
    
>       displaymatrix: rotation of -90.00 degrees
    
>     Stream #0:1(und), 107, 1/44100: Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
    
>     Metadata:
    
>       creation_time   : 2014-06-05 04:40:27
    
>       handler_name    : Core Media Data Handler Successfully opened the file. Parsing a group of options: output file 1.avi. Successfully
    
> parsed a group of options. Opening an output file: 1.avi. Successfully
    
> opened the file. detected 24 logical cores [graph 0 input from stream
    
> 0:0 @ 0x34aa3a0] Setting 'video_size' to value '480x360' [graph 0
    
> input from stream 0:0 @ 0x34aa3a0] Setting 'pix_fmt' to value '0'
    
> [graph 0 input from stream 0:0 @ 0x34aa3a0] Setting 'time_base' to
    
> value '1/600' [graph 0 input from stream 0:0 @ 0x34aa3a0] Setting
    
> 'pixel_aspect' to value '0/1' [graph 0 input from stream 0:0 @
    
> 0x34aa3a0] Setting 'sws_param' to value 'flags=2' [graph 0 input from
    
> stream 0:0 @ 0x34aa3a0] Setting 'frame_rate' to value '320/11' [graph
    
> 0 input from stream 0:0 @ 0x34aa3a0] w:480 h:360 pixfmt:yuv420p
    
> tb:1/600 fr:320/11 sar:0/1 sws_param:flags=2 [format @ 0x3496b00]
    
> compat: called with args=[yuv420p] [format @ 0x3496b00] Setting
    
> 'pix_fmts' to value 'yuv420p' [AVFilterGraph @ 0x348f320]
    
> query_formats: 4 queried, 3 merged, 0 already done, 0 delayed
    
> [AVFilterGraph @ 0x34bbe60] Error initializing threading.
    
> [AVFilterGraph @ 0x34bbe60] Error creating filter 'anull' Error
    
> opening filters! [AVIOContext @ 0x34967c0] Statistics: 0 seeks, 0
    
> writeouts [AVIOContext @ 0x348f1e0] Statistics: 2333362 bytes read, 67
    
> seeks

    [AVFilterGraph @ 0x34bbe60] Error initializing threading.
    [AVFilterGraph @ 0x34bbe60] Error creating filter ’anull’ Error
    opening filters !

    As ROOT :

    ffmpeg -v verbose -i 1.mov 1.avi
    
ffmpeg version N-65949-g0ddb051 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Aug 28 2014 11:39:47 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
    
  configuration: --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  0.101 / 56.  0.101
    
  libavformat    56.  3.100 / 56.  3.100
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  0.103 /  5.  0.103
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2014-06-05 04:40:27
    
    model           : iPhone 5
    
    model-eng       : iPhone 5
    
    encoder         : 7.1.1
    
    encoder-eng     : 7.1.1
    
    date            : 2014-06-04T21:40:27-0700
    
    date-eng        : 2014-06-04T21:40:27-0700
    
    make            : Apple
    
    make-eng        : Apple
    
  Duration: 00:00:07.15, start: 0.000023, bitrate: 781 kb/s
    
    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 710 kb/s, 29.09 fps, 600 tbr, 600 tbn, 1200 tbc (default)
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
      encoder         : H.264
    
    Side data:
    
      displaymatrix: rotation of -90.00 degrees
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
[graph 0 input from stream 0:0 @ 0x27ed3a0] w:480 h:360 pixfmt:yuv420p tb:1/600 fr:320/11 sar:0/1 sws_param:flags=2
    
[graph 1 input from stream 0:1 @ 0x2800700] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x4
    
Output #0, avi, to '1.avi':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    make-eng        : Apple
    
    model           : iPhone 5
    
    model-eng       : iPhone 5
    
    make            : Apple
    
    ISFT            : Lavf56.3.100
    
    ICRD            : 2014-06-04T21:40:27-0700
    
    date-eng        : 2014-06-04T21:40:27-0700
    
    Stream #0:0(und): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 480x360, q=2-31, 200 kb/s, 29.09 fps, 29.09 tbn, 29.09 tbc (default)
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
      encoder         : Lavc56.0.101 mpeg4
    
    Stream #0:1(und): Audio: mp3 (libmp3lame) (U[0][0][0] / 0x0055), 44100 Hz, mono, fltp (default)
    
    Metadata:
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
      encoder         : Lavc56.0.101 libmp3lame
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
    
  Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame))
    
Press [q] to stop, [?] for help
    
*** dropping frame 79 from stream 0 at ts 80
    
*** dropping frame 113 from stream 0 at ts 114
    
*** dropping frame 145 from stream 0 at ts 146
    
*** dropping frame 177 from stream 0 at ts 178
    
No more output streams to write to, finishing.
    
frame=  204 fps=0.0 q=27.2 Lsize=     348kB time=00:00:07.15 bitrate= 398.4kbits/s dup=0 drop=4    
    
video:271kB audio:56kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 6.560985%
    
Input file #0 (1.mov):
    
  Input stream #0:0 (video): 208 packets read (634624 bytes); 208 frames decoded; 
    
  Input stream #0:1 (audio): 308 packets read (56854 bytes); 308 frames decoded (315392 samples); 
    
  Total: 516 packets (691478 bytes) demuxed
    
Output file #0 (1.avi):
    
  Output stream #0:0 (video): 204 frames encoded; 204 packets muxed (276993 bytes); 
    
  Output stream #0:1 (audio): 274 frames encoded (315392 samples); 275 packets muxed (57469 bytes); 
    
  Total: 479 packets (334462 bytes) muxed

    strace and strace -e outputs :
    strace non root :

     579 clone(child_stack=0x7fd3bfd07ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd3bfd089d0, tls=0x7fd3bfd08700, child_tidptr=0x7fd3bfd089d0) = 3        2637
    
    580 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd3bed07000
    
    581 mprotect(0x7fd3bed07000, 4096, PROT_NONE) = 0
    
    582 clone(child_stack=0x7fd3bf506ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd3bf5079d0, tls=0x7fd3bf507700, child_tidptr=0x7fd3bf5079d0) = -        1 EAGAIN (Resource temporarily unavailable)
    
    583 futex(0x253b420, FUTEX_WAKE_PRIVATE, 1) = 1
    
    584 futex(0x253b3f4, FUTEX_CMP_REQUEUE_PRIVATE, 1, 2147483647, 0x253b420, 4) = 2
    
    585 futex(0x253b420, FUTEX_WAKE_PRIVATE, 1) = 1
    
    586 futex(0x7fd3c2d0e9d0, FUTEX_WAIT, 32631, NULL) = 0
    
    587 munmap(0x7fd3bed07000, 8392704)         = 0
    
    588 munmap(0x7fd3c250e000, 8392704)         = 0
    
    589 munmap(0x7fd3c1d0d000, 8392704)         = 0
    
    590 munmap(0x7fd3c150c000, 8392704)         = 0
    
    591 write(2, "\33[1;32m[AVFilterGraph @ 0x253b0a"..., 39[AVFilterGraph @ 0x253b0a0] ) = 39
    
    592 write(2, "\33[1;31mError initializing thread"..., 41Error initializing threading.
    
    593 ) = 41
    
    594 write(2, "\33[1;32m[AVFilterGraph @ 0x253b0a"..., 39[AVFilterGraph @ 0x253b0a0] ) = 39
    
    595 write(2, "\33[1;31mError creating filter 'an"..., 41Error creating filter 'anull'
    
    596 ) = 41
    
    597 write(2, "\33[4;31mError opening filters!\n\33["..., 34Error opening filters!
    
    598 ) = 34

    strace -e non root :

    strace -e open ffmpeg -i 1.mov 5.avi
    
open("/etc/ld.so.cache", O_RDONLY)      = 3
    
open("/lib64/libasound.so.2", O_RDONLY) = 3
    
open("/usr/lib64/libSDL-1.2.so.0", O_RDONLY) = 3
    
open("/lib64/libpthread.so.0", O_RDONLY) = 3
    
open("/usr/lib64/libx264.so.142", O_RDONLY) = 3
    
open("/usr/lib64/libvpx.so.0", O_RDONLY) = 3
    
open("/usr/local/lib/libvorbisenc.so.2", O_RDONLY) = 3
    
open("/usr/local/lib/libvorbis.so.0", O_RDONLY) = 3
    
open("/usr/local/lib/libmp3lame.so.0", O_RDONLY) = 3
    
open("/lib64/libm.so.6", O_RDONLY)      = 3
    
open("/lib64/libbz2.so.1", O_RDONLY)    = 3
    
open("/usr/local/lib/libz.so.1", O_RDONLY) = 3
    
open("/lib64/librt.so.1", O_RDONLY)     = 3
    
open("/lib64/libc.so.6", O_RDONLY)      = 3
    
open("/lib64/libdl.so.2", O_RDONLY)     = 3
    
open("/usr/local/lib/libogg.so.0", O_RDONLY) = 3
    
ffmpeg version N-65949-g0ddb051 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Aug 28 2014 11:39:47 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
    
  configuration: --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  0.101 / 56.  0.101
    
  libavformat    56.  3.100 / 56.  3.100
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  0.103 /  5.  0.103
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
open("1.mov", O_RDONLY|O_CLOEXEC)       = 3
    
open("/etc/localtime", O_RDONLY)        = 4
    
open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 4
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2014-06-05 04:40:27
    
    model           : iPhone 5
    
    model-eng       : iPhone 5
    
    encoder         : 7.1.1
    
    encoder-eng     : 7.1.1
    
    date            : 2014-06-04T21:40:27-0700
    
    date-eng        : 2014-06-04T21:40:27-0700
    
    make            : Apple
    
    make-eng        : Apple
    
  Duration: 00:00:07.15, start: 0.000023, bitrate: 781 kb/s
    
    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 710 kb/s, 29.09 fps, 600 tbr, 600 tbn, 1200 tbc (default)
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
      encoder         : H.264
    
    Side data:
    
      displaymatrix: rotation of -90.00 degrees
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-06-05 04:40:27
    
      handler_name    : Core Media Data Handler
    
open("5.avi", O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0666) = 4
    
[AVFilterGraph @ 0x26ff4a0] Error initializing threading.
    
[AVFilterGraph @ 0x26ff4a0] Error creating filter 'anull'
    
Error opening filters!

    strace root :

     579 clone(child_stack=0x7f4eb7c34ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb7c359d0, tls=0x7f4eb7c35700, child_tidptr=0x7f4eb7c359d0) = 3        383
    
    580 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb6c34000
    
    581 mprotect(0x7f4eb6c34000, 4096, PROT_NONE) = 0
    
    582 clone(child_stack=0x7f4eb7433ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb74349d0, tls=0x7f4eb7434700, child_tidptr=0x7f4eb74349d0) = 3        384
    
    583 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb6433000
    
    584 mprotect(0x7f4eb6433000, 4096, PROT_NONE) = 0
    
    585 clone(child_stack=0x7f4eb6c32ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb6c339d0, tls=0x7f4eb6c33700, child_tidptr=0x7f4eb6c339d0) = 3        385
    
    586 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb5c32000
    
    587 mprotect(0x7f4eb5c32000, 4096, PROT_NONE) = 0
    
    588 clone(child_stack=0x7f4eb6431ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb64329d0, tls=0x7f4eb6432700, child_tidptr=0x7f4eb64329d0) = 3        386
    
    589 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb5431000
    
    590 mprotect(0x7f4eb5431000, 4096, PROT_NONE) = 0
    
    591 clone(child_stack=0x7f4eb5c30ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb5c319d0, tls=0x7f4eb5c31700, child_tidptr=0x7f4eb5c319d0) = 3        387
    
    592 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb4c30000
    
    593 mprotect(0x7f4eb4c30000, 4096, PROT_NONE) = 0
    
    594 clone(child_stack=0x7f4eb542fff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb54309d0, tls=0x7f4eb5430700, child_tidptr=0x7f4eb54309d0) = 3        388
    
    595 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb442f000
    
    596 mprotect(0x7f4eb442f000, 4096, PROT_NONE) = 0
    
    597 clone(child_stack=0x7f4eb4c2eff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|        CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f4eb4c2f9d0, tls=0x7f4eb4c2f700, child_tidptr=0x7f4eb4c2f9d0) = 3        389
    
    598 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4eb3c2e000

    strace -e root :

        strace -e open ffmpeg -i 1.mov 5.avi
    
    open("/etc/ld.so.cache", O_RDONLY)      = 3
    
    open("/lib64/libasound.so.2", O_RDONLY) = 3
    
    open("/usr/lib64/libSDL-1.2.so.0", O_RDONLY) = 3
    
    open("/lib64/libpthread.so.0", O_RDONLY) = 3
    
    open("/usr/lib64/libx264.so.142", O_RDONLY) = 3
    
    open("/usr/lib64/libvpx.so.0", O_RDONLY) = 3
    
    open("/usr/local/lib/libvorbisenc.so.2", O_RDONLY) = 3
    
    open("/usr/local/lib/libvorbis.so.0", O_RDONLY) = 3
    
    open("/usr/local/lib/libmp3lame.so.0", O_RDONLY) = 3
    
    open("/lib64/libm.so.6", O_RDONLY)      = 3
    
    open("/lib64/libbz2.so.1", O_RDONLY)    = 3
    
    open("/usr/local/lib/libz.so.1", O_RDONLY) = 3
    
    open("/lib64/librt.so.1", O_RDONLY)     = 3
    
    open("/lib64/libc.so.6", O_RDONLY)      = 3
    
    open("/lib64/libdl.so.2", O_RDONLY)     = 3
    
    open("/usr/local/lib/libogg.so.0", O_RDONLY) = 3
    
    ffmpeg version N-65957-gc6a3b00 Copyright (c) 2000-2014 the FFmpeg developers
    
      built on Aug 28 2014 13:37:32 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
    
      configuration: --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264 --prefix=/usr --libdir=/usr/lib64 --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
    
      libavutil      54.  7.100 / 54.  7.100
    
      libavcodec     56.  0.101 / 56.  0.101
    
      libavformat    56.  3.100 / 56.  3.100
    
      libavdevice    56.  0.100 / 56.  0.100
    
      libavfilter     5.  0.103 /  5.  0.103
    
      libswscale      3.  0.100 /  3.  0.100
    
      libswresample   1.  1.100 /  1.  1.100
    
      libpostproc    53.  0.100 / 53.  0.100
    
    open("1.mov", O_RDONLY|O_CLOEXEC)       = 3
    
    open("/etc/localtime", O_RDONLY)        = 4
    
    open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 4
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mov':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 0
    
        compatible_brands: qt  
    
        creation_time   : 2014-06-05 04:40:27
    
        model           : iPhone 5
    
        model-eng       : iPhone 5
    
        encoder         : 7.1.1
    
        encoder-eng     : 7.1.1
    
        date            : 2014-06-04T21:40:27-0700
    
        date-eng        : 2014-06-04T21:40:27-0700
    
        make            : Apple
    
        make-eng        : Apple
    
      Duration: 00:00:07.15, start: 0.000023, bitrate: 781 kb/s
    
        Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 710 kb/s, 29.09 fps, 600 tbr, 600 tbn, 1200 tbc (default)
    
        Metadata:
    
          rotate          : 90
    
          creation_time   : 2014-06-05 04:40:27
    
          handler_name    : Core Media Data Handler
    
          encoder         : H.264
    
        Side data:
    
          displaymatrix: rotation of -90.00 degrees
    
        Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
    
        Metadata:
    
          creation_time   : 2014-06-05 04:40:27
    
          handler_name    : Core Media Data Handler
    
    File '5.avi' already exists. Overwrite ? [y/N] y
    
    open("5.avi", O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0666) = 4
    
    Output #0, avi, to '5.avi':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 0
    
        compatible_brands: qt  
    
        make-eng        : Apple
    
        model           : iPhone 5
    
        model-eng       : iPhone 5
    
        make            : Apple
    
        ISFT            : Lavf56.3.100
    
        ICRD            : 2014-06-04T21:40:27-0700
    
        date-eng        : 2014-06-04T21:40:27-0700
    
        Stream #0:0(und): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 480x360, q=2-31, 200 kb/s, 29.09 fps, 29.09 tbn, 29.09 tbc (default)
    
        Metadata:
    
          rotate          : 90
    
          creation_time   : 2014-06-05 04:40:27
    
          handler_name    : Core Media Data Handler
    
          encoder         : Lavc56.0.101 mpeg4
    
        Stream #0:1(und): Audio: mp3 (libmp3lame) (U[0][0][0] / 0x0055), 44100 Hz, mono, fltp (default)
    
        Metadata:
    
          creation_time   : 2014-06-05 04:40:27
    
          handler_name    : Core Media Data Handler
    
          encoder         : Lavc56.0.101 libmp3lame
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
    
      Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame))
    
    Press [q] to stop, [?] for help
    
    frame=  204 fps=0.0 q=27.2 Lsize=     348kB time=00:00:07.15 bitrate= 398.4kbits/s dup=0 drop=4    
    
    video:271kB audio:56kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 6.560985%

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