PeerStreamer

static int write_streamheader(NUTContext *nut, ByteIOContext *bc, AVCodecContext *codec, int i){

    put_v(bc, i);

    switch(codec->codec_type){

    case CODEC_TYPE_VIDEO: put_v(bc, 0); break;

    case CODEC_TYPE_AUDIO: put_v(bc, 1); break;

//    case CODEC_TYPE_TEXT : put_v(bc, 2); break;

    default              : put_v(bc, 3); break;

    }

    put_v(bc, 4);

    if (codec->codec_tag){

        put_le32(bc, codec->codec_tag);

    }else

        return -1;

    put_v(bc, (nut->stream[i].time_base - nut->time_base)/sizeof(AVRational));

    put_v(bc, nut->stream[i].msb_pts_shift);

    put_v(bc, nut->stream[i].max_pts_distance);

    put_v(bc, codec->has_b_frames);

    put_byte(bc, 0); /* flags: 0x1 - fixed_fps, 0x2 - index_present */

    put_v(bc, codec->extradata_size);

    put_buffer(bc, codec->extradata, codec->extradata_size);

    switch(codec->codec_type){

    case CODEC_TYPE_AUDIO:

        put_v(bc, codec->sample_rate);

        put_v(bc, 1);

        put_v(bc, codec->channels);

        break;

    case CODEC_TYPE_VIDEO:

        put_v(bc, codec->width);

        put_v(bc, codec->height);

        put_v(bc, codec->sample_aspect_ratio.num);

        put_v(bc, codec->sample_aspect_ratio.den);

        put_v(bc, 0); /* csp type -- unknown */

        break;

    default:

        break;

    }

    return 0;

}

        write_streamheader(nut, bc, codec, i);