Recherche avancée

Médias (91)

Autres articles (42)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 : (...)

Sur d’autres sites (7020)

  • FFMPEG : Can not free AVPacket when decode H264 stream ?

    13 janvier 2016, par TTGroup

    I’m using FFMPEG to decode H264 stream, my code is below

    AVFormatContext *pFormatCtx = NULL;
    
AVCodecContext  *pCodecCtx = NULL;
    
AVFrame         *pFrame = NULL;
    
AVPacket        packet;
    
packet.data = NULL;
    

    
pFormatCtx = avformat_alloc_context();  
    
avformat_open_input(&pFormatCtx, videoStreamPath, NULL, NULL);
    
liveHeader.pCodecCtx = pFormatCtx->streams[videoStreamIndex]->codec;
    

    
int  bytesDecoded = 0;
    
int  frameFinished = 0;
    
while (true)
    
{
    
    while (packet.size > 0)
    
    {
    
        // Decode the next chunk of data
    
        bytesDecoded = avcodec_decode_video2(pCodecCtx, pFrame,
    
            &frameFinished, &packet);
    

    
        // Was there an error?
    
        if (bytesDecoded < 0)
    
        {
    
            printf(strErr, "Error while decoding frame\n");
    
            commonGlobal->WriteRuntimeRecLogs(strErr);
    
            return RS_NOT_OK;
    
        }
    

    
        packet.size -= bytesDecoded;
    
        packet.data += bytesDecoded;
    
        if (frameFinished)
    
        {               
    
            //av_free_packet(&packet); //(free 1)
    
            return RS_OK;
    
        }
    
        // Did we finish the current frame? Then we can return
    
    }
    
    do
    
    {
    
        try
    
        {
    
            int ret = av_read_frame(pFormatCtx, &packet);
    
            if (ret < 0)
    
            {
    
                char strErr[STR_LENGTH_256];
    
                if (ret == AVERROR_EOF || (pFormatCtx->pb && pFormatCtx->pb->eof_reached))
    
                {
    
                    sprintf(strErr, "Error end of file line %d", __LINE__);
    
                }
    
                if (pFormatCtx->pb && pFormatCtx->pb->error)
    
                {
    
                    sprintf(strErr, "Error end of file line %d", __LINE__);
    
                }
    
                packet.data = NULL;
    
                return RS_NOT_OK;
    
            }
    
        }
    
        catch (...)
    
        {
    
            packet.data = NULL;
    
            return RS_NOT_OK;
    
        }
    
    } while (packet.stream_index != videoStreamIndex);
    
}
    

    
//av_free_packet(&packet); //(free 2)

    The problem is I don’t know how to free memory of packet correctly.

    I have tried to delete packet’s data by calling one of two places av_free_packet(&packet); (free 1) and av_free_packet(&packet); (free 2). And the result is the application was crashed with the message "Heap Corruption..."

    If I do not free the packet, the memory leak is occur.

    Note that the above code is successful when decode H264 stream, the main problem is memory leak and crashed when I try to free the packet

    Someone can show me the problems in my code.

    Many thanks,

    T&T

  • ffmpeg video editor library is free to use in android ?

    7 juillet 2015, par Rank Mayur

    I am developing video editor app. and i go through ffmpeg library and it’s demo. It is really nice to use. but my question is it free to use ? and if not then is there any other way for video editor like crop video, replace audio, etc.

  • lavfi/af_adeclick : fix double free after ff_filter_frame fail

    19 août 2019, par Jun Zhao
    lavfi/af_adeclick : fix double free after ff_filter_frame fail

    ff_filter_frame fail will free the frame, so we just returen after this
    
function fail.
    

    Reviewed-by : Paul B Mahol <onemda@gmail.com>
    
Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
    • [DH] libavfilter/af_adeclick.c

Navigation