header={
  "recipe_version": "1.11",
  "title": "Convert To DNxHD video",
  "description": "Convert (almost) any video to an Avid DNxHD file",
  "tags": "default",
  "chef": "BeatRig",
  "dependencies": "ffmpeg,ffprobe",
  "instructions": "",
  "type": "default",
  "os": "windows,macOS",
  "palette": "Clean Slate",
  "spice": "BQ==:G+Hy36kJcnQQYYavb/JV2Il6eCYr6h4hRJHCF9rRbhX5BcazL6cuTgUMdz0xA50VWA5PmmV0Q7aWkiUtNFtbk991l+t0e8IBXMReMIT1GNjnZZDv7n2YRAo0xcSQbY0ixjG6LLH4wGKnspKAoA/v69iLn6N2IH0XzIZwTGdHSo4=",
  "flavour": "owg7GjEotF2vS8LRXXMUA8Ez3r2dxEfH+JttJ8DO+W1bCuBTuqUh2prJma4GBqCP5HupmSdYxCoymT6+XjlFUAS5WT54HONEeABX+qFRNoEXUJpvnKjAR8RKzACIC9LQiKcn5oO9dyjSUZZRhO9nmj5Fvqa6HEFuQJ+h9BhTFjo=",
  "time": 1723914371,
  "core_version": "0.6.4",
  "magnetron_version": "1.0.317",
  "functions": "main",
  "uuid": "264aef79be5146658ef6465561b45595"
};





// =============================================================================
// GLOBALS
var framecount = 0;


// =============================================================================
function main()
{

    // MESSAGE
    setMainMessage("preparing");

    // -----------------------------
    // CHECK IF FFMPEG AND FFPROBE ARE AVAILABLE
    if(getAllowedApps("ffmpeg") == '' ) abort("FFMPEG is not available");
    if(getAllowedApps("ffprobe") == '' ) abort("FFMPEG is not available");

    // -----------------------------
    // GET ALL FILES FROM USER INPUT
    var files = getFiles();


    // -----------------------------
    // IF NO FILES, WARN AND STOP
    if( files.length == 0)
        abort("Add some files first!");


    // -----------------------------
    // RESET THE META DATA
    for (i=0;i<files.length;i++)
    {
        files[i]['file_icon'] = "square";
        files[i]['file_icon_color'] = "FFdddddd";
        files[i]['file_status'] = "";
        files[i]["file_tooltip"] = "";
        files[i]['group'] = "";
    }

    // -----------------------------
    // UPDATE USER INTERFACE
    setFiles(files);


    // -----------------------------
    // LOOP FILES
    for (i=0;i<files.length;i++)
    {

        //
        setMainMessage("preparing file");

        //
        var file = files[i].path;
        var specs = filespecs(file);
        framecount = specs.framecount;


        // FRAMERATE FROM ORIGINAL FILE
        framerate = specs.framerate;

        // BITRATE DEPENDING ON FRAMERATE
        var bitrate = '36000k'; // 23.976FPS // 24FPS // 25FPS // 
        if(framerate == "30/1.001") { bitrate = '145000k'; } // 29.97FPS
        else if(framerate == "50/1") { bitrate = '120000k'; } // 50FPS
        else if(framerate == "60000/1001") { bitrate = '145000k'; } // 59.94FPS


        // SET STATUS
        files[i]['file_icon'] = "CaretSquareORight";
        files[i]['file_status'] = 'processing';
        setFiles(files);

        // ---------------------------------------------------------------------
        var path = getPathInfo(file);
        var vidout = path.folder+gvar.pss+path.basename+"-[dnxhd].mov";

        // 
        var ff = [
            '-i',file,
            '-map','v:0',
            '-probesize','50M',
            '-analyzeduration','100M',
            ];

        // audio
        if(specs.streams.audio.length > 0){
            ff = concatArray(ff, [
                '-map','a:0',
                '-c:a','pcm_s24le',
                ]);
            }

        // no audio
        else{
            ff = concatArray(ff, [
                '-an',
                ]);
            }

        //
        ff = concatArray(ff, [
            '-c:v','dnxhd',
            '-b:v',bitrate,
            '-r',framerate,
            '-s','1920x1080',
            '-aspect','16:9',
            '-pix_fmt','yuv422p',
            '-trellis','0',
            '-me_range','16',
            '-nitris_compat','1',
            '-sn',
            vidout,
            '-y',
            ]);

        echo(objectToString(ff));
        // PROCESSING
        var ffmpeg = cmd("ffmpeg", ff);



        // ---------------------------------------------------------------------
        // THIS FILE IS DONE
        setProgress(100);
        setMainMessage("file done");

        // SET STATUS
        files[i]['file_icon'] = "CheckSquare";
        files[i]['file_icon_color'] = "FF00aa00";
        files[i]['file_status'] = 'DONE';
        setFiles(files);

        // ---------------------------------------------------------------------
        }

    // ALL IS DONE
    setMainMessage("all done");
    }





// =============================================================================
// FFMPEG PROCESS STATUS
// =============================================================================
function cmd_callback(cmd_name, cmd_output){
    if(cmd_name=="ffmpeg" && cmd_output.length > 0 && framecount > 0){
        var progress = parseInt ( searchRegEx(cmd_output, "(?:frame=)(.*?)(?:fps=)", "i", 1)[0] );
        progress = Math.round( progress/framecount* 100 );
        setProgress(progress);
        setMainMessage("processing "+progress+"%");
        }
    }


// =============================================================================
// FILE SPECS
// =============================================================================
    function filespecs(file)
    {
        setProgress(101);

        // ----------------------------------------
        // GET VIDEO SPECS
        var ffprobe = cmd("ffprobe", [
            '-v','error',
            // '-select_streams','v',
            // '-show_entries','stream=codec_type,codec_name,pix_fmt,width,height,r_frame_rate',
            "-count_packets",
            '-show_entries','stream=nb_read_packets,codec_type,pix_fmt,width,height,r_frame_rate,codec_name,channels,sample_rate,bits_per_sample : format=duration',
            // '-of','default=noprint_wrappers=1',
            '-i',file
            ]);

        var streams = {
            audio: [],
            video: [],
            };

        // DURATION
        var duration = parseFloat ( searchRegEx(ffprobe, "(?:duration=)(.*?)(?=[\n\r])", "i", 1)[0] );        

        // UGGLY FIX BECAUSE replaceRegEx DOESNT KNOW HOW TO HANDLE NEW LINES
        ffprobe = replaceRegEx(ffprobe, '[\n\r]', ',', "i");

        // EXPLODE INTO STREAMS
        //var ffprobe = searchRegEx(ffprobe, "(?:\\[STREAM\\],)(.*?)(?=,\\[\\/STREAM\\])", "i", 1);
        var ffprobe = searchRegEx(ffprobe, "(?:\\[STREAM\\],)(.*?)(?=,\\[\\/STREAM\\])", "i", -1);

        // LOOP OVER STREAMS
        for (var i = 0; i < ffprobe.length; i++) {

            // EXPLODE ENTRIES
            var entries = ffprobe[i].split(',');

            // STREAM DATA
            var stream = {};

            for (var j = 0; j < entries.length; j++)
            {
                if (containsString(entries[j], "=") == false)
                    continue;

                var l = entries[j].split('='); 
                
                if          ( l[0] == "codec_name" && l[0] != "unknown" ) stream = mergeObject( stream, { "codec_name" : l[1] });
                else if     ( l[0] == "codec_type" ) stream = mergeObject( stream, { "codec_type" : l[1] });
                else if     ( l[0] == "sample_rate" ) stream = mergeObject( stream, { "sample_rate" : l[1] });
                else if     ( l[0] == "channels" ) stream = mergeObject( stream, { "channels" : l[1] });
                else if     ( l[0] == "bits_per_sample" ) stream = mergeObject( stream, { "bits_per_sample" : l[1] });
                else if     ( l[0] == "width" ) stream = mergeObject( stream, { "width" : l[1] });
                else if     ( l[0] == "height" ) stream = mergeObject( stream, { "height" : l[1] });
                else if     ( l[0] == "pix_fmt" ) stream = mergeObject( stream, { "pix_fmt" : l[1] });
                else if     ( l[0] == "r_frame_rate" && l[0] != "0/0") stream = mergeObject( stream, { "r_frame_rate" : l[1] });
                else if     ( l[0] == "nb_read_packets" ) stream = mergeObject( stream, { "nb_read_packets" : l[1] });
            }

            // GROUP AUDIO AND VIDEO STREAMS 
            if( stream.codec_type == "audio") { streams.audio.push(stream); }
            else if( stream.codec_type == "video") { streams.video.push(stream); }
            }

        // get framecount for progress
        var framecount = (streams.video.length > 0 ? parseInt(streams.video[0].nb_read_packets) : 0);
        var framerate = (streams.video.length > 0 ? parseInt(streams.video[0].r_frame_rate) : 0);

        // ----------------------------------------
        setProgress(0);
        return {
            'streams' : streams,
            'duration' : duration,
            'framecount' : framecount,
            'framerate' : framerate
            };


        // ----------------------------------------
    }