Recherche avancée

Médias (0)

Mot : - Tags -/clipboard

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (46)

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5882)

  • FFmpeg memory leak

    10 septembre 2015, par Spamdark

    I have developed just a simple library modifing a library that I found on the internet.

    What scares me, is that, when I play an avi, it plays and free the memory when the video ends, but when I play the video, it’s like a memory leak ! It grows to 138mb although the video has ended and the FreeAll method (A function that deletes the context, etc...) has been called.

    Here is the code of the method that is causing the memory leak :

    int VideoGL::NextVideoFrame(){
    
int frameDone = 0;
    
int result = 0;
    
double pts = 0;
    

    
if(!this->ended){
    

    
if (!_started) return 0;
    
AVPacket* packet;
    

    
// Get the number of milliseconds passed and see if we should display a new frame
    
int64_t msPassed = (1000 * (clock() - _baseTime)) / CLOCKS_PER_SEC;
    
if (msPassed >= _currentPts)
    
{
    
    // If this is not the current frame, copy it to the buffer
    
    if (_currentFramePts != _currentPts){
    
        _currentFramePts = _currentPts;
    
        memcpy(buffer_a,buffer, 3 * _codec_context_video->width * _codec_context_video->height);
    
        result = 1;
    
    }
    

    
    // Try to load a new frame from the video packet queue
    
    bool goodop=false;
    
    AVFrame *_n_frame = avcodec_alloc_frame();
    
    while (!frameDone && (packet = this->DEQUEUE(VIDEO)) != NULL)
    
    {
    
        if (packet == (AVPacket*)-1) return -1;
    

    
        goodop=true;
    

    
        _s_pts = packet->pts;
    
        avcodec_decode_video2(_codec_context_video, _n_frame, &frameDone, packet);
    
        av_free_packet(packet);
    

    
        if (packet->dts == AV_NOPTS_VALUE)
    
        {
    
            if (_n_frame->opaque && *(uint64_t*)_n_frame->opaque != AV_NOPTS_VALUE) pts = (double) *(uint64_t*)_n_frame->opaque;
    
            else pts = 0;
    
        }
    
        else pts = (double) packet->dts;
    

    
        pts *= av_q2d(_codec_context_video->time_base);
    

    
    }
    

    
    if (frameDone)
    
    {
    
        // if a frame was loaded scale it to the current texture frame buffer, but also set the pts so that it won't be copied to the texture until it's time
    
        sws_scale(sws_ctx,_n_frame->data, _n_frame->linesize, 0, _codec_context_video->height, _rgb_frame->data, _rgb_frame->linesize);
    

    

    
        double nts = 1.0/av_q2d(_codec_context_video->time_base);
    
        _currentPts = (uint64_t) (pts*nts);
    

    
    }
    

    
    avcodec_free_frame(&_n_frame);
    
    av_free(_n_frame);
    

    
    if(!goodop){
    
        ended=true;
    
    }
    
}
    
}
    

    
return result;
    
}

    I’ll be waiting for answers, thanks.

  • Encoding a readable movie by QuickTime using FFMPEG

    3 octobre 2014, par itamarb

    I’m trying to encode an image sequence using the following command :

    ffmpeg.exe -i %d.png -f mp4 -vcodec h264 test.mp4

    However, QuickTime failed to open this file or sometimes play a black movie, while this movie plays great in VLC player. Any suggestions how to make it play well in QuickTime ?

    Here is the output :

    ffmpeg.exe -i %d.png -f mp4 -vcodec libx264 13.mp4
    
ffmpeg version N-49044-g89afa63 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jan 19 2013 20:36:06 with gcc 4.7.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
    
sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
    
nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
    
nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
    
able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
    
-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
    
  libavutil      52. 15.100 / 52. 15.100
    
  libavcodec     54. 89.100 / 54. 89.100
    
  libavformat    54. 61.101 / 54. 61.101
    
  libavdevice    54.  3.102 / 54.  3.102
    
  libavfilter     3. 32.101 /  3. 32.101
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[image2 @ 0221b940] max_analyze_duration 5000000 reached at 5000000 microseconds
    

    
Input #0, image2, from '%d.png':
    
  Duration: 00:01:19.36, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 639x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0221edc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE
    
4.2 AVX
    
[libx264 @ 0221edc0] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
    
[libx264 @ 0221edc0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Cop
    
yleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
    
lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
    
e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
    
ma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 in
    
terlaced=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 scenecu
    
t=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 '13.mp4':
    
  Metadata:
    
    encoder         : Lavf54.61.101
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 639x480, q=-1--1
    
, 12800 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Press [q] to stop, [?] for help
    
frame=   76 fps=0.0 q=28.0 size=       3kB time=00:00:00.96 bitrate=  22.3kbits/
    
frame=  156 fps=155 q=28.0 size=       7kB time=00:00:04.16 bitrate=  14.7kbits/
    
frame=  219 fps=145 q=28.0 size=      12kB time=00:00:06.68 bitrate=  14.1kbits/
    
frame=  283 fps=141 q=28.0 size=      16kB time=00:00:09.24 bitrate=  14.2kbits/
    
frame=  352 fps=140 q=28.0 size=      25kB time=00:00:12.00 bitrate=  17.4kbits/

  • avcodec/cfhd : Add support for 12-bit RGBA.

    27 février 2016, par Kieran Kunhya
    avcodec/cfhd : Add support for 12-bit RGBA.

    Plays all known samples
    • [DH] libavcodec/cfhd.c

Navigation