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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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.

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  • ffmpeg got black and white video when encoding flv

    17 décembre 2012, par samyou

    i searched the site and got a post :
    getting black and white image after encoding
    but i got no answer.

    don't know how but it is all black and white.

    hear is the init code :

    JNIEXPORT jboolean JNICALL Java_sam_flvmuxer_SamRTMPNative_nativeInitMuxerAndStart(
    
    JNIEnv *env, jclass jcls, jstring outfile, jint inwidth, jint inheight,
    
    jint fps) {
    
audioOutBuffer = malloc(AUDIO_OUT_BUFFER_SIZE);
    
videoOutBuffer = malloc(VIDEO_OUT_BUFFER_SIZE);
    
VIDEO_WIDTH = inwidth;
    
VIDEO_HEIGHT = inheight;
    
av_log_set_callback(samffmpeglogback);
    
av_register_all();
    
char *filepath = (*env)->GetStringUTFChars(env, outfile, 0);
    
JNILOG("file path is %s",filepath);
    
avformat_alloc_output_context2(&avFormatContext, NULL, NULL, filepath);
    
if (!avFormatContext) {
    
    JNILOG("avformat_alloc_output_context2 with filepath failed");
    
    return JNI_FALSE;
    
}
    
AVOutputFormat *fmt = avFormatContext->oformat;
    
//fmt->video_codec = VIDEO_CODEC_ID;
    
////init video
    
avVideoStream = avformat_new_stream(avFormatContext, NULL );
    
if (!avVideoStream) {
    
    (*env)->ReleaseStringUTFChars(env, outfile, filepath);
    
    return 0;
    
}
    

    
AVCodec *videocodec = avcodec_find_encoder(VIDEO_CODEC_ID);
    
if (!videocodec) {
    
    JNILOG("avcodec_find_encoder error");
    
    return JNI_FALSE;
    
}
    
avcodec_get_context_defaults3(avVideoStream->codec, videocodec);
    

    
AVCodecContext *avVideoCodecContext = avVideoStream->codec;
    
avVideoCodecContext->codec_type = AVMEDIA_TYPE_VIDEO;
    
avVideoCodecContext->codec_id = VIDEO_CODEC_ID;
    
avVideoCodecContext->width = inwidth;
    
avVideoCodecContext->height = inheight;
    
avVideoCodecContext->time_base.den = fps;
    
avVideoCodecContext->time_base.num = 1;
    
avVideoCodecContext->gop_size = 10;
    
avVideoCodecContext->pix_fmt = PIX_FMT_YUV420P;
    
JNILOG("bitrate befort set = %d",avVideoCodecContext->bit_rate);
    
avVideoCodecContext->bit_rate = 600000;
    

    

    
if (fmt->flags & AVFMT_GLOBALHEADER)
    
    avVideoCodecContext->flags |= CODEC_FLAG_GLOBAL_HEADER;
    

    
av_dump_format(avFormatContext,0,filepath,1);
    
if(avcodec_open2(avVideoCodecContext,videocodec,NULL)<0)
    
{
    
    JNILOG("video avcodec_open2 failed");
    
    (*env)->ReleaseStringUTFChars(env, outfile, filepath);
    
    return JNI_FALSE;
    
}
    

    

    

    
///////
    
/* open the output file, if needed */
    
if (!(fmt->flags & AVFMT_NOFILE)) {
    
    if ((avio_open(&avFormatContext->pb, filepath, AVIO_FLAG_WRITE)) < 0) {
    
        JNILOG("Could not open file!");
    
        (*env)->ReleaseStringUTFChars(env, outfile, filepath);
    
        return 0;
    
    }
    
}
    
if (avformat_write_header(avFormatContext, NULL ) < 0) {
    
    JNILOG("Could not avformat_write_header!");
    
    (*env)->ReleaseStringUTFChars(env, outfile, filepath);
    
    return 0;
    
}
    
(*env)->ReleaseStringUTFChars(env, outfile, filepath);
    
YUVFrame = avcodec_alloc_frame();
    
JNILOG("ffmpeg every thing inited");
    
return JNI_TRUE;
    
}

    and encode code looks like below :

    avpicture_fill((AVPicture *)YUVFrame,framedata,PIX_FMT_YUV420P,VIDEO_WIDTH,VIDEO_HEIGHT);
    
    ///打印data 分量!!!!
    
    AVPacket pkt;
    
    av_init_packet(&pkt);
    
    pkt.data = videoOutBuffer;
    
    pkt.size = VIDEO_OUT_BUFFER_SIZE;
    
    int gotpkt = 0;
    
    avcodec_encode_video2(avVideoStream->codec,&pkt,YUVFrame,&gotpkt);
    
    if (gotpkt > 0) {
    
        JNILOG("encoded size=%d,gotpktflag=%d",pkt.size,gotpkt);
    
        pkt.stream_index = avVideoStream->index;
    
        pkt.flags |= AV_PKT_FLAG_KEY;
    
        pkt.pts = timestamp;
    
        while (pkt.pts <= lastVideoPts) {
    
            pkt.pts++;
    
        }
    
        lastVideoPts = pkt.pts;
    
        if (av_interleaved_write_frame(avFormatContext, &pkt) < 0) {
    
            JNILOG("av_interleaved_write_frame failed");
    
        }
    
    }

    someone please help me with this problem^^

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