New plugin, executor.

README.md

@@ -16,6 +16,7 @@ Natron pipeline.
         -O  Automatically assign output filename based on input filename
         -p  Select the preset to apply
         -c  Specify parameters for the preset
+        -b  Batch mode, input parameter is a list of files
 
 Examples:
 

plugins/executor/README.md

@@ -0,0 +1,50 @@
+preset:
+    name: Stabilize video clip
+    group: video
+    plugin: transcode
+    props:
+        set:
+            inputtrf: { value:"{%uinput}.trf", escape:true }
+        script:
+            analyze:
+                info: Getting stabilization vectors
+                exec: "transcode -J stabilize -i {%input}"
+                parse: { regex: '/^encoding frames [0-([0-9]+?)], ([0-9\.]+?) fps/', frame:1, eta:2 }
+            stabilize:
+                info Stabilizing video
+                exec: "transcode -J transform -i {%input} -o {%output}"
+                parse: { regex: '/^encoding frames [0-([0-9]+?)], ([0-9\.]+?) fps/', frame:1, eta:2 }
+            cleanup:
+                exec: "rm {%inputtrf}"
+
+
+
+## Scripts
+
+Each script command is named, and will be executed in order of appearance. Errors
+will be reported and execution will stop if the exit code is non-zero, using
+the names as logical pointers.
+
+### Command lines
+
+Command line uses placeholders.
+
+        {%input}    The input filename, escaped for the command line
+        {%uinput}   Unescaped input filename
+        {%output}   The output filename, escaped for command line
+        {%uoutput}  Unescaped outptu filename
+
+Any parameters will also be available:
+
+        {%paramname} 
+
+And you can use `set` to assign stuff to variables.
+
+### Parsing output
+
+To parse the output, add a `parse` key to the command block.
+
+        parse:
+            regex:    <- expression
+            frame:    <- index of frame number, or leave out
+            fps:      <- index of frames per second, or leave out

plugins/executor/plugin.php

@@ -0,0 +1,227 @@
+<?php
+
+namespace VfxApply\Plugin\Executor;
+
+use VfxApply\Plugin;
+use VfxApply\Input;
+use VfxApply\Output;
+use VfxApply\Preset;
+
+class ExecutorPlugin extends Plugin
+{
+    public function getName()
+    {
+        return "executor";
+    }
+    
+    public function applyPreset(Preset $preset, Input $input, Output $output)
+    {
+        
+        $env = [
+            'uinput' => $input->getFilename(),
+            'uoutput' => $output->getFilename(),
+            'frames' => $input->getVideoDuration()->frames,
+            'seconds' => $input->getVideoDuration()->seconds,
+        ];
+        $env['input'] = escapeshellarg($env['uinput']);
+        $env['output'] = escapeshellarg($env['uoutput']);
+        
+        $script = $this->loadScript($preset);
+        $script->execute($env);
+    }
+
+
+    private function loadScript(Preset $preset)
+    {
+        $script = new Script();
+        foreach ((array)$preset->get('set') as $k=>$v) {
+            $script->set($k,$v);
+        }
+        foreach ((array)$preset->get('script') as $name=>$step) {
+            $op = new Operation($name, $step);
+            $script->addOperation($op);
+        }
+        return $script;
+    }
+
+}
+
+class Script
+{
+    /** @var array Variables */
+    protected $vars = [];
+
+    public function set($k,$v)
+    {
+        $this->vars[$k] = $v;
+    }
+
+    public function addOperation(Operation $operation)
+    {
+        $operation->setScript($this);
+        $this->operations[] = $operation;
+    }
+
+    public function execute(array $env)
+    {
+        $env = $this->buildEnvironment($env, $this->vars);
+        //print_r($env);
+        foreach ($this->operations as $operation) {
+            //printf("Executing: %s\n", $operation->getInfo());
+            $operation->execute($env);
+        }
+    }
+
+    private function buildEnvironment(array $env, array $vars)
+    {
+        $vars = array_merge($env, $vars);
+        foreach ($vars as $k=>$var) {
+            if (is_array($var)) {
+                $esc = empty($var['escape'])?false:$var['escape'];
+                $var = preg_replace_callback('/\{\%([a-z]+?)\}/i', function ($match) use (&$vars,$var) {
+                    $k = $match[1];
+                    if (empty($vars[$k])) return null;
+                    return $vars[$k];
+                }, $var['value']);
+                if ($esc) $var = escapeshellarg($var);
+                $vars[$k] = $var;
+            }
+        }
+        return $vars;
+    }
+
+    public function parseVariable($value, array $env)
+    {
+        return preg_replace_callback('/\{\%([a-z]+?)\}/i', function ($match) use (&$env) {
+            $k = $match[1];
+            if (empty($env[$k])) return null;
+            return $env[$k];
+        }, $value);
+    }
+}
+
+class Operation
+{
+    protected $name;
+
+    protected $info;
+
+    protected $parser;
+
+    protected $command;
+
+    protected $script;
+
+    public function __construct($name, array $data)
+    {
+        $_ = function($a,$k,$d=null) { return empty($a[$k])?$d:$a[$k]; };
+        $this->name = $name;
+        $this->info = $_($data,'info');
+        $this->command = $_($data,'exec');
+        $this->parser = new Parser($_($data,'parse'));
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getInfo()
+    {
+        return $this->info;
+    }
+
+    public function setScript(Script $script)
+    {
+        $this->script = $script;
+    }
+
+    public function execute(array $env)
+    {
+        $cmdl = $this->script->parseVariable($this->command, $env);
+        //printf(" cmd: %s\n", $this->command);
+        //printf("   eval: %s\n", $cmdl);
+
+        $descr = [
+            0 => [ 'pipe', 'r' ],
+            1 => [ 'pipe', 'w' ],
+            2 => [ 'pipe', 'w' ]
+        ];
+        echo "Exec: ".$cmdl."\n";
+        $proc = proc_open($cmdl, $descr, $pipes);
+        $tot = (int)$env['frames']-1;
+        printf("\r%s [%s]", $this->info, $this->name);
+        $this->parser->parse($pipes, function ($status) use ($tot) {
+            $curr = (int)$status['frame'];
+            $pc = min(100,100/$tot*$curr);
+            printf("\r%s [%s]: %.1f%%", $this->info, $this->name, $pc);
+        });
+        proc_close($proc);
+        printf("\n");
+
+    }
+}
+
+class Parser
+{
+    const STDOUT = 1;
+    const STDERR = 2;
+
+    /** @var array Resources */
+    protected $streams = [];
+    /** @var string The expression to match (preg match) */
+    protected $expression;
+    /** @var int The stream to watch */
+    protected $source;
+    /** @var array Index to name mappings */
+    protected $names = [];
+
+    public function __construct(array $parser=null)
+    {
+        $_ = function($a,$k,$d=null) { return empty($a[$k])?$d:$a[$k]; };
+        $this->expression = $_($parser,'regex');
+        $this->source = $_($parser,'from');
+        foreach ((array)$parser as $k=>$v) {
+            if (is_numeric($v)) {
+                $this->names[$k] = $v;
+            }
+        }
+    }
+
+    public function parse(array $streams, callable $callback)
+    {
+        $this->streams = $streams;
+        $match = [ 'stdout' => 1, 'stderr' => 2 ];
+        $source = $this->source?:'stdout';
+
+        foreach ($this->streams as $stream)
+            stream_set_blocking($stream, false);
+
+        while (!feof($this->streams[1])) {
+            $stdout = fread($this->streams[1],8192);
+            $stderr = fread($this->streams[2],8192);
+            //($stdout) && printf("OUT: <<%s>>\n", $stdout);
+            //($stderr) && printf("ERR: <<%s>>\n", $stderr);
+            if (($stdout && $this->expression) && ($source=='stdout'))
+                if (preg_match($this->expression, $stdout, $match))
+                    call_user_func($callback, $this->parseNames($match));
+            if (($stderr && $this->expression) && ($source=='stderr'))
+                if (preg_match($this->expression, $stderr, $match))
+                    call_user_func($callback, $this->parseNames($match));
+            usleep(10000);
+        }
+
+    }
+
+    protected function parseNames(array $match)
+    {
+        $ret = [];
+        foreach ($this->names as $k=>$index) {
+            $ret[$k] = $match[$index];
+        }
+        return $ret;
+    }
+
+}
+
+return new ExecutorPlugin();

plugins/natron/plugin.php

@@ -16,7 +16,22 @@ class NatronPlugin extends Plugin
     
     public function applyPreset(Preset $preset, Input $input, Output $output)
     {
+        $project = $preset->get("project");
+        $file = $preset->getResourcePath($project);
 
+        $in_node = $preset->get("reader");
+        $out_node = $preset->get("writer");
+        $in_file = $input->getFilename();
+        $out_file = $output->getFilename();
+
+        $cmdl = sprintf(
+            "NatronRenderer %s -i %s %s -o %s %s", 
+            escapeshellarg($file),
+            $in_node, escapeshellarg($in_file),
+            $out_node, escapeshellarg($out_file)
+        );
+
+        echo $cmdl."\n";
     }
 
 }

presets/executor/executor-vidstab.yml

@@ -0,0 +1,34 @@
+preset:
+    name: Stabilize video clip (two-pass)
+    group: video
+    plugin: executor
+    props:
+        set:
+            inputtrf: { value:"{%uinput}.trf", escape:true }
+        script:
+            analyze:
+                info: Getting stabilization vectors
+                exec: "transcode -i {%input} -J stabilize"
+                parse: { from: 'stderr', regex: '/encoding frames \[0-([0-9]+?)\],\s+([0-9\.]+?) fps/', frame:1, eta:2 }
+            stabilize:
+                info: Stabilizing video
+                exec: "transcode -i {%input} -o {%output} -J transform -y dv"
+                # -y ffmpeg -F mpeg4"
+                parse: { from: 'stderr', regex: '/encoding frames \[0-([0-9]+?)\],\s+([0-9\.]+?) fps/', frame:1, eta:2 }
+            cleanup:
+                exec: "ls {%inputtrf}"
+#!/bin/bash
+
+#INPUT="$1"
+#OUTPUT="$1.stab.avi"
+#CODEC="-y xvid"
+
+#if [ -e "$INPUT.trf" ]; then
+#    echo "Cache found, not re-calling stabilize..."
+#else
+    # Start the deshake process
+#    transcode -J stabilize -i $INPUT || transcode -J stabilize --mplayer_probe -i $INPUT
+#fi
+
+# Now, stabilize the video
+#transcode -J transform -i $INPUT $CODEC -o $OUTPUT

presets/natron/natron-cctv.ntp.lock

@@ -0,0 +1,4 @@
+fre dec 23 02:08:06 2016
+noccy@noccy-aspire5551
+9030
+noccy-aspire5551

presets/natron/natron-cctv.yml

@@ -0,0 +1,8 @@
+preset:
+    name:   Apply a CCTV look to the video
+    group:  natron
+    plugin: natron
+    props:
+        project: natron-cctv.ntp
+        reader: Input1
+        writer: Output1

src/Application.php

@@ -44,9 +44,13 @@ class Application
 
     private function loadPreset($file)
     {
-        $preset = Preset::createFromFile($file);
-        $id = basename($file,".yml");
-        $this->presets[$id] = $preset;
+        try {
+            $preset = Preset::createFromFile($file);
+            $id = basename($file,".yml");
+            $this->presets[$id] = $preset;
+        } catch (\Exception $e) {
+            fprintf(STDERR, "Warning: The preset %s could not be loaded. %s\n", $file, $e->getMessage());
+        }
     }
 
     private function selectPreset()
@@ -79,7 +83,14 @@ class Application
         $this->readPlugins();
         $this->readPresets();
 
-        $opts = getopt("i:o:");
+        $opts = getopt("i:o:p:l");
+
+        if (array_key_exists('l',$opts)) {
+            foreach ($this->presets as $name=>$preset) {
+                printf("%s: %s\n", $name, $preset->getName());
+            }
+            return 0;
+        }
 
         $input = new Input();
         if (!empty($opts['i'])) {
@@ -91,20 +102,36 @@ class Application
         }
         $input->analyze();
 
-        $dur = $input->getVideoDuration();
-        printf("Input: %s %.2fs (%d frames)\n", $input->getFilename(), $dur->seconds, $dur->frames);
-
-        if (!($preset = $this->selectPreset())) {
-            return 1;
+        $output = new Output();
+        if (empty($opts['o'])) {
+            $output->setFilenameFromInput($input);
+        } else {
+            $output->setFilename($opts['o']);
         }
+
+        $dur = $input->getVideoDuration();
+        printf("Input:  %s %.2fs (%d frames)\n", $input->getFilename(), $dur->seconds, $dur->frames);
+        printf("Output: %s\n", $output->getFilename());
+
+        if (empty($opts['p'])) {
+            if (!($preset = $this->selectPreset())) {
+                return 1;
+            }
+        } else {
+            if (!array_key_exists($opts['p'], $this->presets)) {
+                fprintf(STDERR, "Error: No such preset %s\n", $opts['p']);
+            }
+            $preset = $this->presets[$opts['p']];
+        }
+
         $plugin_name = $preset->getPlugin();
         $plugin = $this->plugins[$plugin_name];
 
-        $output = new Output();
-        $output->setFilename("/tmp/out.mp4");
-
         $plugin->applyPreset($preset, $input, $output);
 
+        $msg = "Process completed.\n\nCreated ".$output->getFilename();
+        exec("notify-send -h int:transient:1 'Completed' ".escapeshellarg($msg));
+
     }
 
-}
+}

src/Output.php

@@ -11,8 +11,37 @@ class Output
         $this->filename = $filename;
     }
 
+    public function setFilenameFromInput(Input $input)
+    {
+        $filename = $input->getFilename();
+        $ext = pathinfo($filename, PATHINFO_EXTENSION);
+        $dir = dirname($filename);
+        $base = basename($filename, $ext);
+        $suggest = $dir.DIRECTORY_SEPARATOR.$base."vfx.".$ext;
+
+        $this->selectFile($suggest);
+    }
+
     public function getFilename()
     {
         return $this->filename;
     }
+
+    public function selectFile($suggest=null)
+    {
+        $cmdl = "zenity  --file-selection --title \"Select output file\" ";
+        $cmdl.= "--save --confirm-overwrite ";
+        if ($suggest) $cmdl.= "--filename=".escapeshellarg($suggest)." ";
+        $cmdl.= "--file-filter=\"Video files (mp4,m4v,avi,ogv,mkv)|*.mp4 *.m4v *.avi *.ogv *.mkv\" ";
+        $cmdl.= "--file-filter=\"Audio files (mp3,m4a,wav,ogg)|*.mp3 *.m4a *.wav *.ogg\" ";
+        $cmdl.= "--file-filter=\"All files|*\" 2>/dev/null";
+         
+        exec($cmdl, $out, $ret);
+        if ($ret == 0) {
+            $this->filename = trim(array_shift($out));
+            return true;
+        }
+        return false;
+    }
+
 }

src/Preset.php

@@ -16,6 +16,8 @@ class Preset
     protected $props = [];
     /** @var array The params can be assigned from user data */
     protected $params = [];
+    /** @var string The directory of the preset */
+    protected $directory = null;
 
     public static function createFromFile($filename)
     {
@@ -25,33 +27,58 @@ class Preset
             throw new \Exception("File does not appear to be a valid preset");
         }
 
-        return new Preset($conf['preset']);
+        return new Preset($conf['preset'], dirname($filename));
     }
 
-    public function __construct(array $preset)
+    /**
+     * Constructor
+     *
+     * @param array $preset The preset data
+     * @param string $directory The directory containing the preset
+     */
+    public function __construct(array $preset, $directory)
     {
         $this->name = $preset['name'];
         $this->group = empty($preset['group'])?null:$preset['group'];
         $this->plugin = $preset['plugin'];
         $this->props = $preset['props'];
         $this->params = empty($preset['params'])?null:$preset['params'];
+        $this->directory = $directory;
     }
 
+    /**
+     *
+     * @return string Preset name
+     */
     public function getName()
     {
         return $this->name;
     }
 
+    /**
+     *
+     * @return string Preset logical group
+     */
     public function getGroup()
     {
         return $this->group;
     }
 
+    /**
+     * Get the plugin name, for resolving a plugin instance to use.
+     *
+     * @return string The plugin name/id
+     */
     public function getPlugin()
     {
         return $this->plugin;
     }
 
+    /**
+     *
+     * @param string $prop The property to get
+     * @return mixed The property if it exists, null otherwise
+     */
     public function get($prop)
     {
         if (!array_key_exists($prop, $this->props)) {
@@ -60,6 +87,12 @@ class Preset
         return $this->props[$prop];
     }
 
+    /**
+     *
+     * @param string $prop The parameter to get
+     * @return mixed The parameter if it exists, throws exception otherwise
+     * @throws Exception
+     */
     public function getParam($param)
     {
         if (!array_key_exists($param, $this->params)) {
@@ -67,4 +100,20 @@ class Preset
         }
         return $this->params[$param];
     }
+
+    /**
+     * Return the directory containing this preset, for referencing resources
+     * bundled with presets.
+     *
+     * @return string The root directory
+     */
+    public function getDirectory()
+    {
+        return $this->directory;
+    }
+
+    public function getResourcePath($file)
+    {
+        return $this->directory.DIRECTORY_SEPARATOR.$file;
+    }
 }