flavienliger/dpx-header

DPX Header Editor for NodeJs

DPX-Header

NodeJs module for dpx header.

var dpx = require('dpx-header-editor');

dpx('path/to/my.dpx').then(function(instance){
  
  // execute command (read/write)
  instance.close();
  
}).catch(function(err){

  // catch read error
  console.log(err);
});

Instance method

• read

instance.read('file_info', 'creator').then(function(res){

  console.log(res); // 'creator'
});

• readMultiple

var arr = [
  { mode: 'file_info', sub: 'creator' },
  { mode: 'file_info', sub: 'filesize' },
  { mode: 'tv_info', sub: 'time_code' }
];

instance.readMultiple(arr).then(function(res){

  console.log(res);
  /*
  {
    file_info: {
      creator: 'creator',
      filesize: 1054865 // octet
    },
    tv_info: {
      time_code: '10:15:12:02'
    }
  }
  */
});

• readAll

instance.readAll().then(function(res){

  console.log(res);
  /*
  {
    file_info: {
      creator: 'creator',
      ...
    },
    tv_info: {
      time_code: '10:15:12:02',
      ...
    },
    ...
  }
  */
});

• write

instance.write('file_info', 'creator', 'me !').then(function(){

  console.log('end');
});

• writeMultiple

var arr = [
  { mode: 'file_info', sub: 'creator', val: 'me !' },
  { mode: 'tv_info', sub: 'time_code', val: '10:13:20:12' }
];

instance.readMultiple(arr).then(function(res){

  console.log('end');
});

• close

instance.close(); // reset buffer and close file

Metadata

• file_info

  • magic
  • offset
  • version
  • filesize
  • filename
  • timestamp
  • creator
  • project
  • copyright
  • encrypt_key
  • reserved

• image_info

  • orientation
  • number_of_elements
  • width
  • height
  • reserved

• orient_info

  • x_offset
  • y_offset
  • x_center
  • y_center
  • x_size
  • y_size
  • source_name
  • source_time
  • input_device
  • input_serial
  • border_x_left
  • border_x_right
  • border_y_left
  • border_y_right
  • aspect_ratio_x
  • aspect_ratio_y
  • reserved

• film_info

  • manufacturer_id
  • film_type
  • perf_offset
  • prefix
  • count
  • format
  • frame_position
  • frame_sequence
  • held_count
  • frame_rate
  • shutter_angle
  • frame_id
  • slate
  • reserved

• tv_info

  • time_code
  • user_bits
  • interlace
  • field_number
  • video_signal
  • padding
  • horizontal_sample_rate
  • vertical_sample_rate
  • frame_rate
  • time_offset
  • gamma
  • black_level
  • black_gain
  • break_point
  • white_level
  • integration_times
  • reserved

• user_info

  • id

• image_element

  • data_sign
  • low_data
  • low_quantity
  • high_data
  • high_quantity
  • descriptor
  • transfer
  • colorimetric
  • bit_size
  • packing
  • encoding
  • data_offset
  • eol_padding
  • eoi_padding
  • description

Credits

• dpx.js - i used him information
• timecode - uint to timecode, and reverse (<3) !