static ngx_int_t
ngx_rtmp_mpegts_write_header(ngx_rtmp_mpegts_file_t *file, ngx_uint_t audio_codec_id)
{
    if (audio_codec_id == NGX_RTMP_AUDIO_MP3 ) {
        return ngx_rtmp_mpegts_write_file(file, ngx_rtmp_mpegts_mp3_header,
                                          sizeof(ngx_rtmp_mpegts_mp3_header));
    }
    return ngx_rtmp_mpegts_write_file(file, ngx_rtmp_mpegts_header,
                                      sizeof(ngx_rtmp_mpegts_header));
}
static ngx_int_t
ngx_rtmp_mpegts_write_header(ngx_rtmp_mpegts_file_t *file, ngx_uint_t *audio_codec_id, ngx_uint_t mpegts_cc)
{

    if (*audio_codec_id == NGX_RTMP_AUDIO_AAC) {
        ngx_memcpy(ngx_rtmp_mpegts_header+210, ngx_rtmp_mpegts_header_aac, 
                                        sizeof(ngx_rtmp_mpegts_header_aac));
    }
    //if (*audio_codec_id == NGX_RTMP_AUDIO_MP3) {
    else {
        ngx_memcpy(ngx_rtmp_mpegts_header+210, ngx_rtmp_mpegts_header_mp3, 
                                        sizeof(ngx_rtmp_mpegts_header_mp3));
    }

    // Truncate counter to 4 bits here
    mpegts_cc %= 0x0f;
    // And fill headers
    ngx_rtmp_mpegts_header[3] = (ngx_rtmp_mpegts_header[3] & 0xf0) + (u_char)mpegts_cc;
    ngx_rtmp_mpegts_header[191] = (ngx_rtmp_mpegts_header[191] & 0xf0) + (u_char)mpegts_cc;

    return ngx_rtmp_mpegts_write_file(file, ngx_rtmp_mpegts_header,
                                      sizeof(ngx_rtmp_mpegts_header));
}