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dcp_inspect
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dcp_inspect
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#!/usr/bin/env ruby
# encoding: utf-8
#
# dcp_inspect checks and validates DCPs (Digital Cinema Packages)
#
# 2011-2024 Wolfgang Woehl
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
AppName = File.basename( $0 )
AppVersion = 'v1.2024.05.14'
AppStartSeconds = Time.now
#
# dcp_inspect is a tool for deep inspection and validation of digital
# cinema packages (DCP). This includes integrity checks, asset inspection,
# schema validation, signature and certificate verification and
# composition summaries
#
# Usage:
#
# dcp_inspect --help
# dcp_inspect /path/to/dir
#
# Installation:
#
# See https://github.com/wolfgangw/digital_cinema_tools_distribution/wiki
# for an easy-to-use setup script. This will install everything required.
#
# Features:
#
# - Will find and check all DCPs in a filesystem tree
#
# - Runs schema validation on all infrastructure files and DCSubtitle.
# Validation errors will be reported but dcp_inspect will still try to
# inspect the contents of non-valid files.
#
# - Checks and verifies signatures
#
# - Reports detailed composition information
#
# - Deep-inspects compositions. This includes composition type consistency
# and completeness checks. dcp_inspect goes through some lengths to determine
# a composition's type (SMPTE/Interop).
#
# - Checks presence and sanity of DCSubtitle resources
#
# - Reports in detail all errors encountered
#
# See [Examples](https://github.com/wolfgangw/backports/wiki/Example-output-from-dcp_inspect).
#
# Manual installation / Requirements:
#
# If you prefer manual installation you will need the following:
#
# - $ git clone git://github.com/wolfgangw/backports.git
# - asdcplib and its cli tools (http://www.cinecert.com/asdcplib/)
# - Nokogiri, a ruby wrapper for libxml2 (gem install nokogiri)
# - dcp_inspect requires xsd/ next to it.
#
# Run
# $ git pull
# in backports to keep up-to-date.
#
#
# Thanks to the Nokogiri team. You're a wicked crew.
# Thanks to Julik for his Timecode library.
# https://github.com/guerilla-di/timecode
# Thanks to Mattias Mattsson for DCSubtitle.v1.mattsson.xsd and
# great feedback from Göteborg International Film Festival.
# Thanks to Mike Radford and Tammo Buhren for test materials.
# Thanks to Alexis Michaltsis for interesting test cases and feedback.
# Thanks to Lilian Lefranc for constant feedback and a donation
# which clearly exceeded what can safely be called a gesture.
# Appreciated and you rock.
# Thanks to Adrianne Jorge for a great user report from Sundance and Sarasota.
# Thanks to Terrence Meiczinger.
#
# ruby version and platform
RubyVersionPlatform = [ RUBY_ENGINE, RUBY_VERSION, RUBY_PLATFORM ].join( ' ' )
# Exit codes
DCP_OK = 0
DCP_ERROR = 1
NO_ARG = 2
TOO_MANY_ARGS = 3
ARG_NOT_A_DIR = 4
XML_CATALOG_NOT_FOUND = 5
XSD_STORE_NOT_FOUND = 6
BAD_HASH_LIMIT_ARG = 7
LOGFILE_WRITE_ERROR = 8
FILE_ACCESS_ERROR = 9
LOGFILE_EXISTS_ERROR = 10
GEM_LOAD_ERROR = 11
REQUIRED_COMMAND_NOT_FOUND = 12
ENV_DCP_INSPECT_DIR_NOT_SET = 13
DCP_INSPECT_DIR_NOT_WRITABLE = 14
AUTOLOGFILE_WRITE_ERROR = 15
MKFIFO_FAIL = 16
RMFIFO_FAIL = 17
USER_INTERRUPT = 18
RUBY_VERSION_NOT_SUPPORTED = 19
RUBY_TYPE_ERROR = 20
RUBY_EXCEPTION = 21
GRACEFUL_SHUTDOWN = 22
LIB_LOAD_ERROR = 23
RUBY_NAME_ERROR = 24
RUBY_ARGUMENT_ERROR = 25
REQUIRED_COMMAND_FDFIND_VERSION_TOO_OLD = 26
# Constants
PictureBitrateMaxDCI = 250.0 # Mb/s
PictureBitrateMaxDCISafetyMargin = 2.0 # percent
PictureBitrateMaxDCISafe = ( PictureBitrateMaxDCI / 100 * ( 100 - PictureBitrateMaxDCISafetyMargin ) ).round( 2 )
PictureBitrateMaxHFR = 400.0 # Mb/s
# Required libs
required_libs = [
'optparse',
'ostruct',
'pathname',
'shellwords',
'openssl',
'stringio',
'fileutils',
'open3',
'date',
]
if RUBY_VERSION < '3.4'
required_libs << 'base64'
end
missing_libs = []
required_libs.each do |lib|
begin
require lib
rescue LoadError => e
puts e.inspect
missing_libs << lib
end
end
if missing_libs.any?
puts "Ruby installation (#{ RubyVersionPlatform }) is missing required libraries (#{ missing_libs.join( ', ' ) })"
exit LIB_LOAD_ERROR
end
# Required gems
required_gems = [
'nokogiri',
'ttfunk',
]
if RUBY_VERSION >= '3.4'
required_gems << 'base64'
end
missing_gems = []
required_gems.each do |gem|
begin
require gem
rescue LoadError => e
puts e.inspect
missing_gems << gem
end
end
if missing_gems.any?
puts "Please run 'gem install #{ missing_gems.join( ' ' ) }' (without the quotes) and try again"
exit GEM_LOAD_ERROR
end
# lib/options.rb
class Options
def self.parse( args )
# defaults
options = OpenStruct.new
options.check_hashes = true
options.check_hashes_limit = :no_limit
options.image_analysis = false # not yet implemented
options.audio_analysis = true
options.schema_validate = true
options.as_asset_store = false
options.verbosity = [ 'debug', 'dev' ]
options.logfile = nil
options.logfile_append = nil
options.logfile_autolog = nil
options.overwrite_logfile = false
options.verbosity_choices = [ 'quiet', 'errors', 'hints', 'siginfo', 'info', 'cpl', 'debug', 'dev', 'trace_func' ]
options.debug = false
opts = OptionParser.new do |opts|
opts.banner = <<BANNER
#{ AppName } #{ AppVersion }
Usage: #{ AppName } [options] <path>
BANNER
opts.on( '--nh', '--no-hash', 'No asset hash checks' ) do
options.check_hashes = false
end
opts.on( '--hl', '--hash-limit limit', String, 'Limit asset hash checks to assets smaller than limit. E.g. 700KB, 50MB or 1GB (Default: No limit)' ) do |p|
options.check_hashes_limit = p.downcase
end
opts.on( '--ni', '--no-image-analysis', 'No image analysis (Image analysis not yet implemented)' ) do
options.image_analysis = false
end
opts.on( '--na', '--no-audio-analysis', 'No audio analysis' ) do
options.audio_analysis = false
end
opts.on( '--no-schema', 'Skip schema checks' ) do
options.schema_validate = false
end
opts.on( '-s', '--as-asset-store', 'Simulate asset store by merging all collected AM dictionaries' ) do
options.as_asset_store = true
end
opts.on( '-l', '--logfile path', String, 'Write full report to logfile at path' ) do |p|
options.logfile = p
end
opts.on( '--la', '--logfile-append path', String, 'Append full report to logfile at path' ) do |p|
options.logfile_append = p
end
opts.on( '--autolog', "Write full report to $DCP_INSPECT_DIR. (Default: Don't)" ) do
options.logfile_autolog = true
end
opts.on( '-L', '--overwrite-logfile', 'Overwrite logfile (Default: Do not overwrite if logfile exists)' ) do
options.overwrite_logfile = true
end
opts.on( '-v', '--verbosity cutout', Array, "Use quiet, errors, hints, siginfo, info, debug or cpl. Specify multiple cutouts like '-v errors,siginfo,info' (Default: debug which includes everything)" ) do |p|
options.verbosity = [] # option was given so reset
p.each do |e|
if options.verbosity_choices.include?( e )
options.verbosity << e
end
end
if options.verbosity.empty?
options.verbosity = [ 'debug' ]
end
end
opts.on( '-d', '--debug', 'Run in debugger (requires gem \'debug\')' ) do
options.debug = true
begin
require 'debug'
rescue Exception => e
puts e.message
exit GEM_LOAD_ERROR
end
end
opts.on_tail( '-h', '--help', 'Display this screen' ) do
puts opts
exit
end
end
begin
opts.parse!( args )
rescue Exception => e
exit if e.class == SystemExit
puts "Options error: #{ e.message }"
exit
end
options
end # parse
end # Options
# * lib/logger.rb
class DLogger
attr_reader :is_quiet, :prints_dev, :prints_errors, :prints_hints, :prints_siginfo, :prints_info, :prints_debug, :prints_cr, :prints_cpl, :writes_logfile, :logfile, :writes_autolog
def initialize( prefix, options )
@prefix = prefix
@full_log = ( options.logfile || options.logfile_autolog || options.logfile_append ? Array.new : nil )
@dev, @errors, @hints, @siginfo, @info, @debug, @cr, @cpl = [ false, false, false, false, false, false, false, false ]
options.verbosity.each do |cutout|
case cutout
when 'quiet' then @is_quiet = true; break
when 'debug' then @dev, @errors, @hints, @siginfo, @info, @debug, @cr, @cpl = [ false, true, true, true, true, true, true, true ]; @is_quiet = false; break
when 'dev' then @dev, @errors, @hints, @siginfo, @info, @debug, @cr, @cpl = [ true, true, true, true, true, true, true, true ]; @is_quiet = false; break
when 'errors' then @errors = true
when 'hints' then @hints = true
when 'siginfo' then @siginfo = true
when 'info' then @info = true
when 'cpl' then @cpl = true
when 'trace_func'
@dev, @errors, @hints, @siginfo, @info, @debug, @cr, @cpl = [ true, false, false, false, false, false, false, false ]; @is_quiet = false
set_trace_func proc { |event, file, line, id, binding, classname|
printf "%8s %s:%-2d %10s %8s\n", event, file, line, id, classname
}
end
end
@writes_logfile = true if options.logfile
@writes_autolog = true if options.logfile_autolog
@logfile = options.logfile
@prints_dev, @prints_errors, @prints_hints, @prints_siginfo, @prints_info, @prints_debug, @prints_cr, @prints_cpl = @dev, @errors, @hints, @siginfo, @info, @debug, @cr, @cpl
@color = Hash.new
@color[ :dev ] = '32' # green
end
def dev( text )
if @dev then outbound_colored( text, @color[ :dev ] ) end
end
def errors( text )
if @errors then outbound( text ) end
end
def hints( text )
if @hints then outbound( text ) end
end
def siginfo( text )
if @siginfo then outbound( text ) end
end
def info( text )
if @info then outbound( text ) end
end
def debug( text )
if @debug then outbound( text ) end
end
def cpl( text )
if @cpl then outbound( text ) end
end
def cr( text )
# don't go to @full_log here
carriage_return( text ) if @cr
end
def outbound( text )
printf "%s %s\n", @prefix, text
@full_log << text if @full_log
end
def outbound_colored( text, color )
printf "%s %s\n", @prefix, colored( text, color )
end
def colored( text, color )
"\033[#{ color }m#{ text }\033[0m"
end
def to_console( text ) printf "%s %s\n", @prefix, text end
def carriage_return( text ) printf "%s %s\r", @prefix, text end
def full_log_blob
@full_log.join( "\n" ) + "\n"
end
end
# Workaround Nokogiri::XML::Document#collect_namespaces peculiarity
# (see https://github.com/sparklemotion/nokogiri/issues/885 for details)
#
# collect_all_namespaces_href_keys will return
#
# {
# "http://www.w3.org/XML/1998/namespace" => ["xml"],
# "http://www.smpte-ra.org/schemas/429-7/2006/CPL" => [nil],
# "http://isdcf.com/schemas/draft/2011/cpl-metadata" => ["meta"],
# "http://www.w3.org/2000/09/xmldsig#" => [nil]
# }
#
# where nil implies xmlns.
# This is an example where multiple default namespace definitions exist
# and are used in different document fragments.
#
# collect_all_namespaces_prefix_keys will return
#
# {
# "xml" => ["http://www.w3.org/XML/1998/namespace"],
# "nil" => ["http://www.smpte-ra.org/schemas/429-7/2006/CPL", "http://www.w3.org/2000/09/xmldsig#"],
# "meta" => ["http://isdcf.com/schemas/draft/2011/cpl-metadata"]
# }
#
class Nokogiri::XML::Document
def collect_all_namespaces_href_keys
xpath( "//namespace::*" ).inject( {} ) do |hash, ns|
( hash[ ns.href ] ||= [] ) << ns.prefix unless ( hash[ ns.href ] and hash[ ns.href ].include? ns.prefix )
hash
end
end
def collect_all_namespaces_prefix_keys
xpath( "//namespace::*" ).inject( {} ) do |hash, ns|
( hash[ ns.prefix ] ||= [] ) << ns.href unless ( hash[ ns.prefix ] and hash[ ns.prefix ].include? ns.href )
hash
end
end
end
# lib/mxf.rb
module MxfTools
def asdcplib_version
out, err, status = Open3.capture3( 'asdcp-unwrap -V' )
major, minor, patchlevel = out.scan( /(\d)\.(\d+)\.(\d+)/ )[0].map { |e| e.to_i }
end
def asdcplib_version_supported?
major, minor, patchlevel = asdcplib_version
case major
when 1
true
else
false
end
end
def mxf_inspect( filename )
errors_present = false
out, err, status = Shell.asdcp_mxf_info( filename )
if err =~ /EditRate and SampleRate do not match/ and err =~ /File may contain JPEG Interop stereoscopic images/
# With 1.12.58 this is not required anymore. Keep it for backwards compat
out, err, status = Shell.asdcp_mxf_interop_stereoscopic_info( filename )
end
if out.empty?
return nil
elsif err =~ /Program stopped on error/
if err =~ /SeekToRIP failed/
return nil
elsif err =~ /File open failure/
return nil
elsif out =~ /essence type is/
# See e.g. Fox Format Test 2D-2k-50 (scope v1.0) (CPL 3452c9ed, MXF 20f97e4e)
errors_present = true
end
end
out = out.split( /\n\s*/ ).collect { |line| line.split( ': ' ) }
et = [ 'EssenceType',
case out.first.to_s
when /#{ MStr::Stereoscopic_pictures }/
MStr::Stereoscopic_pictures
when /#{ MStr::Pictures }/
MStr::Pictures
when /#{ MStr::Mpeg2 }/
MStr::Mpeg2
when /#{ MStr::Audio }/
MStr::Audio
when /#{ MStr::Atmos }/
MStr::Atmos
when /#{ MStr::Timed_text }/i
MStr::Timed_text
else
nil
end
]
return Hash[ out << et ]
end
end # MxfTools
include MxfTools
class Pipe
def initialize
@pipename = "#{ AppName }_#{ rand( 2 ** 32 ).to_s( 16 ) }"
@pipe = nil
result = make_pipe
end
def remove
out, err, status = Open3.capture3( "rm #{ self.path }" )
end
def path
"/tmp/#{ @pipename }"
end
private
def make_pipe
out, err, status = Open3.capture3( "mkfifo #{ self.path }" )
@pipe = self.path
end
end # Pipe
def bars( list )
level = '█▇▆▅▄▃▂▁'
'|' + list.inject( [] ) do |ary, value|
case value
when '-inf'
ary << '.'
else
case value.to_f.abs
when 0.0
level_index = level[ 0 ]
else
level_index = [ 0, ( Math.log2 value.to_f.abs ).to_i.abs, level.size - 1 ].sort[ 1 ] # clamp between 0 and level.size - 1
end
ary << level[ level_index ]
end
ary
end.join('|') + '|'
end
def parse_sox_stats( stats_str )
begin
[ 'DC offset', 'Min level', 'Max level', 'Pk lev dB', 'RMS lev dB', 'RMS Pk dB', 'RMS Tr dB', 'Crest factor', 'Flat factor', 'Pk count', 'Bit-depth', 'Num samples', 'Length s', 'Scale max', 'Window s' ].inject( {} ) do |hash, item|
values = stats_str.match( /^#{ item }.+$/ )[ 0 ].split( /\s+/ ).reject { |e| item =~ /#{ e }/ }
key = item.downcase.gsub( /\W/, '_' ).to_sym
hash[ key ] = { :overall => values[ 0 ], :channels => values[ 1 .. -1 ] }
hash
end
rescue Exception => e
@logger.info e.message
return {}
end
end
def audio_characteristics( pipe, asset_file, channel_count, entry_point, duration, key = nil )
unwrap_call = "asdcp-unwrap -f #{ entry_point } -d #{ duration } #{ key ? '-k ' + key : '' } #{ Shellwords.escape asset_file } #{ pipe.path } 2>/dev/null"
pid = Process.spawn( unwrap_call )
Process.detach pid
system( 'sleep 0.1' )
sox_call = "sox -t wavpcm #{ pipe.path } -n stats"
out, err, status = Open3.capture3( sox_call )
parse_sox_stats( err )
end
# lib/magic_strings.rb
module MStr
Smpte_am = 'http://www.smpte-ra.org/schemas/429-9/2007/AM'
Smpte_pkl = 'http://www.smpte-ra.org/schemas/429-8/2007/PKL'
Smpte_cpl = 'http://www.smpte-ra.org/schemas/429-7/2006/CPL'
Interop_am = 'http://www.digicine.com/PROTO-ASDCP-AM-20040311#'
Interop_pkl = 'http://www.digicine.com/PROTO-ASDCP-PKL-20040311#'
Interop_cpl = 'http://www.digicine.com/PROTO-ASDCP-CPL-20040511#'
Composition_metadata_href = [ 'http://isdcf.com/schemas/draft/2011/cpl-metadata', 'http://www.smpte-ra.org/schemas/429-16/2014/CPL-Metadata' ]
Ns_Xmldsig = 'http://www.w3.org/2000/09/xmldsig#'
Schemas = {
Smpte_am => 'SMPTE-429-9-2007-AM.xsd',
Smpte_pkl => 'SMPTE-429-8-2006-PKL.xsd',
Smpte_cpl => 'SMPTE-429-7-2006-CPL.xsd',
Interop_am => 'PROTO-ASDCP-AM-20040311.xsd',
Interop_pkl => 'PROTO-ASDCP-PKL-20040311.xsd',
Interop_cpl => 'PROTO-ASDCP-CPL-20040511.xsd'
}
# asdcp-info answers include
Stereoscopic_pictures = 'stereoscopic pictures'
Pictures = 'pictures'
Mpeg2 = 'MPEG2 video'
Audio = 'audio'
Atmos = 'Dolby ATMOS'
Timed_text = 'timed text'
Tkr_attr = 'x-TKR'
AssetTypeSmpte = 'SMPTE'
AssetTypeInterop = 'Interop'
AssetTypeUnknown = 'Unknown'
AssetTypeMixed = 'Mixed'
AssetTypeUndetermined = 'Undetermined'
TTF = 'Font TrueType'
OTF = 'Font CFF-based'
Cpl_content_kind_default_scope = 'http://www.smpte-ra.org/schemas/429-7/2006/CPL#standard-content'
Cpl_standard_content = [ 'feature', 'trailer', 'test', 'teaser', 'rating', 'advertisement', 'short', 'transitional', 'psa', 'policy' ]
Cpl_standard_content_moniker_map = { :ftr => :feature, :tlr => :trailer, :tst => :test, :tsr => :teaser, :rtg => :rating, :pol => :policy, :adv => :advertisement, :shr => :short, :xsn => :transitional, :psa => :psa }
#
# RFC-4122:
# The hexadecimal values "a" through "f" are output as
# lower case characters and are case insensitive on input.
#
Uuid_rfc4122_re = /^[0-9a-f]{8}-[0-9a-f]{4}-([1-5])[0-9a-f]{3}-[8-9a-b][0-9a-f]{3}-[0-9a-f]{12}$/i
Uuid_re = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i
Uuid_particle_re = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/i # used for filename component
end # module MStr
# lib/shell_tools.rb
module Shell
class << self
def uuid_new
`kmuuidgen -n`
end
def asdcp_mxf_info( filename )
out, err, status = Open3.capture3( "asdcp-info -v -i -d -r #{ Shellwords.shellescape filename }" )
out = out.chomp
return out, err, status
end
def asdcp_mxf_interop_stereoscopic_info( filename )
out, err, status = Open3.capture3( "asdcp-info -3 -v -i -d -r #{ Shellwords.shellescape filename }" )
out = out.chomp
return out, err, status
end
end
end
class Numeric
TERA = 1099511627776.0
GIGA = 1073741824.0
MEGA = 1048576.0
KILO = 1024.0
def to_k
case
when self == 1 then '1 Byte'
when self < KILO then "%d Bytes" % self
when self < MEGA then "%.1f KB" % ( self / KILO )
when self < GIGA then "%.1f MB" % ( self / MEGA )
when self < TERA then "%.1f GB" % ( self / GIGA )
else "%.1f TB" % ( self / TERA )
end
end
end
# Glyph availability
module TTFunk
class File
def provides_glyphs_for?( unicode_string )
unicode_string.unpack("U*").all? { |c| cmap.unicode.first[c] > 0 }
end
end
end
# Signature counters
@signed_cpls_count = 0
@signed_cpls_verified_count = 0
@signed_pkls_count = 0
@signed_pkls_verified_count = 0
# Plaintext/Encrypted compositions counter
@encrypted_compositions = 0
# lib/tools.rb
# date and time helpers
def time_to_datetime( time ) # OpenSSL's ruby bindings return Time objects for certificate validity info
DateTime.parse( time.to_s )
end
def datetime_friendly( dt ) # return something in the form of "Tuesday Nov 30 2010 18:56"
"#{ DateTime::DAYNAMES[ dt.wday ] } #{ DateTime::ABBR_MONTHNAMES[ dt.month ] } #{ dt.day.to_s } #{ dt.year.to_s } #{ '%02d' % dt.hour.to_s }:#{ '%02d' % dt.min.to_s }"
end
def datetime_friendly_mmmddyyyy( dt ) # return something in the form of "Nov 30 2010"
"#{ DateTime::ABBR_MONTHNAMES[ dt.month ] } #{ dt.day.to_s } #{ dt.year.to_s }"
end
RunDatetime = time_to_datetime AppStartSeconds
RunDatetime_friendly = datetime_friendly RunDatetime
def yyyymmdd( datetime ) # used in KDM filenames. See http://www.kdmnamingconvention.com/
datetime.to_s.split( 'T' ).first.gsub( /-/,'' )
end
def hours_minutes_seconds_verbose( seconds )
t = seconds
hrs = ( ( t / 3600 ) ).to_i
min = ( ( t / 60 ) % 60 ).to_i
sec = t % 60
return [
hrs > 0 ? hrs.to_s + " hour#{ 's' * ( hrs > 1 ? 1 : 0 ) }" : nil ,
min > 0 ? min.to_s + " minute#{ 's' * ( min > 1 ? 1 : 0 ) }" : nil ,
sec == 1 ? sec.to_i.to_s + ' second' : sec != 0 ? sec.to_s + ' seconds' : nil ,
t > 60 ? "(#{ t } seconds)" : nil
].compact.join( ' ' )
end
def hms_from_seconds( seconds )
hours = ( seconds / 3600.0 ).to_i
minutes = ( ( seconds / 60.0 ) % 60 ).to_i
secs = seconds % 60
return [ hours, minutes, secs ].join( ':' )
end
def seconds_from_hms( timestring ) # hh:mm:ss.fraction
a = timestring.split( ':' )
hours = a[ 0 ].to_i
minutes = a[ 1 ].to_i
secs = a[ 2 ].to_f
return ( hours * 3600 + minutes * 60 + secs )
end
def time_string( t )
return "--:--:--" if t.nil?
t = t.to_i; s = t % 60; m = ( t / 60 ) % 60; h = t / 3600
"%02d:%02d:%02d" % [ h, m, s ]
end
# Adapted from actionpack-3.2.11/lib/action_view/helpers/date_helper.rb
def distance_of_time_in_words(from_time, to_time = 0, include_seconds = false, options = {})
from_time = from_time.to_time if from_time.respond_to?(:to_time)
to_time = to_time.to_time if to_time.respond_to?(:to_time)
distance_in_minutes = (((to_time - from_time).abs)/60).round
distance_in_seconds = ((to_time - from_time).abs).round
case distance_in_minutes
when 0..1
return distance_in_minutes == 0 ?
"less than 1 minute" :
"#{ amount 'minute', distance_in_minutes }" unless include_seconds
case distance_in_seconds
when 0..59 then "less than 1 minute"
else "1 minute"
end
when 2..44 then "#{ amount 'minute', distance_in_minutes }"
when 45..89 then "about 1 hour"
when 90..1439 then "about #{ amount 'hour', (distance_in_minutes.to_f / 60.0).round }"
when 1440..2519 then "1 day"
when 2520..43199 then "#{ amount 'day', (distance_in_minutes.to_f / 1440.0).round }"
when 43200..86399 then "about 1 month"
when 86400..525599 then "#{ amount 'month', (distance_in_minutes.to_f / 43200.0).round }"
else
fyear = from_time.year
fyear += 1 if from_time.month >= 3
tyear = to_time.year
tyear -= 1 if to_time.month < 3
leap_years = (fyear > tyear) ? 0 : (fyear..tyear).count{|x| Date.leap?(x)}
minute_offset_for_leap_year = leap_years * 1440
minutes_with_offset = distance_in_minutes - minute_offset_for_leap_year
remainder = (minutes_with_offset % 525600)
distance_in_years = (minutes_with_offset / 525600)
if remainder < 131400
"about #{ amount 'year', distance_in_years }"
elsif remainder < 394200
"over #{ amount 'year', distance_in_years }"
else
"almost #{ amount 'year', distance_in_years + 1 }"
end
end
end
# misc helpers
#
class String
def black; "\e[30m#{self}\e[0m" end
def red; "\e[31m#{self}\e[0m" end
def green; "\e[32m#{self}\e[0m" end
def brown; "\e[33m#{self}\e[0m" end
def blue; "\e[34m#{self}\e[0m" end
def magenta; "\e[35m#{self}\e[0m" end
def cyan; "\e[36m#{self}\e[0m" end
def gray; "\e[37m#{self}\e[0m" end
def bg_black; "\e[40m#{self}\e[0m" end
def bg_red; "\e[41m#{self}\e[0m" end
def bg_green; "\e[42m#{self}\e[0m" end
def bg_brown; "\e[43m#{self}\e[0m" end
def bg_blue; "\e[44m#{self}\e[0m" end
def bg_magenta; "\e[45m#{self}\e[0m" end
def bg_cyan; "\e[46m#{self}\e[0m" end
def bg_gray; "\e[47m#{self}\e[0m" end
def bold; "\e[1m#{self}\e[22m" end
def italic; "\e[3m#{self}\e[23m" end
def underline; "\e[4m#{self}\e[24m" end
def blink; "\e[5m#{self}\e[25m" end # temptingudontknowhow
def invert; "\e[7m#{self}\e[27m" end
end
# turn items like '100KB' or '1.5 GB' to bytes
def bytes_from_nice_bytes( nice_bytes )
parts = nice_bytes.downcase.split( /(kb|mb|gb)/ )
n = Float( parts.first )
if parts[ 1 ]
case parts[ 1 ]
when 'kb'
n * Numeric::KILO.to_i
when 'mb'
n * Numeric::MEGA.to_i
when 'gb'
n * Numeric::GIGA.to_i
end
else
n
end
end
# plural helper english
def amount( item, count )
if count.is_a? Array or count.is_a? Hash
"#{ count.size } #{ item }#{ pl count }"
elsif count.integer?
"#{ count } #{ item }#{ pl count }"
end
end
def plural( item, count )
"#{ item }#{ pl count }"
end
def pl( count )
if count.is_a? Array or count.is_a? Hash
count.size != 1 ? 's' : ''
elsif count.integer?
count != 1 ? 's' : ''
end
end
# Thanks to Rein Henrichs
def truncate( text, num_words = 6, truncate_string = " [...]" )
if text.nil? then return end
arr = text.split( ' ' )
arr.length > num_words ? arr[ 0...num_words ].join( ' ' ) + truncate_string : text
end
# package path helper
def package( relative_path )
File.join( @package_dir, relative_path )
end
def print_inspection_messages( inspection )
inspection[ :errors ].map { |e| @logger.errors [ 'Error', e ].join( ': ' ) }
inspection[ :hints ].map { |e| @logger.hints [ 'Hint', e ].join( ': ' ) }
inspection[ :siginfo ].map { |e| @logger.siginfo [ 'Siginfo', e ].join( ': ' ) }
inspection[ :info ].map { |e| @logger.info [ 'Info', e ].join( ': ' ) }
end
#
# lib/timecode-ticks_tc.rb (Julik's timecode -- https://github.com/guerilla-di/timecode + parse_with_ticks)
# Timecode is a convenience object for calculating SMPTE timecode natively.
# The promise is that you only have to store two values to know the timecode - the amount
# of frames and the framerate. An additional perk might be to save the dropframeness,
# but we avoid that at this point.
#
# You can calculate in timecode objects as well as with conventional integers and floats.
# Timecode is immutable and can be used as a value object. Timecode objects are sortable.
#
class Timecode
VERSION = '1.0.0'
include Comparable
DEFAULT_FPS = 25.0
#:stopdoc:
NTSC_FPS = (30.0 * 1000 / 1001).freeze
FILMSYNC_FPS = (24.0 * 1000 / 1001).freeze
ALLOWED_FPS_DELTA = (0.001).freeze
COMPLETE_TC_RE = /^(\d{2}):(\d{2}):(\d{2}):(\d{2})$/
COMPLETE_TC_RE_24 = /^(\d{2}):(\d{2}):(\d{2})\+(\d{2})$/
DF_TC_RE = /^(\d{1,2}):(\d{1,2}):(\d{1,2});(\d{2})$/
FRACTIONAL_TC_RE = /^(\d{2}):(\d{2}):(\d{2})\.(\d{1,8})$/
TICKS_TC_RE = /^(\d{2}):(\d{2}):(\d{2}):(\d{3})$/
WITH_FRACTIONS_OF_SECOND = "%02d:%02d:%02d.%02d"
WITH_FRAMES = "%02d:%02d:%02d:%02d"
WITH_FRAMES_24 = "%02d:%02d:%02d+%02d"
#:startdoc:
# All Timecode lib errors inherit from this
class Error < RuntimeError; end
# Gets raised if timecode is out of range (like 100 hours long)
class RangeError < Error; end
# Gets raised when a timecode cannot be parsed
class CannotParse < Error; end
# Gets raised when you try to compute two timecodes with different framerates together
class WrongFramerate < ArgumentError; end
# Initialize a new Timecode object with a certain amount of frames and a framerate
# will be interpreted as the total number of frames
def initialize(total = 0, fps = DEFAULT_FPS)
raise WrongFramerate, "FPS cannot be zero" if fps.zero?
# If total is a string, use parse
raise RangeError, "Timecode cannot be negative" if total.to_i < 0
# Always cast framerate to float, and num of rames to integer
@total, @fps = total.to_i, fps.to_f
@value = validate!
freeze
end
def inspect # :nodoc:
"#<Timecode:%s (%dF@%.2f)>" % [to_s, total, fps]
end
class << self
# Use initialize for integers and parsing for strings
def new(from, fps = DEFAULT_FPS)
from.is_a?(String) ? parse(from, fps) : super(from, fps)
end
# Parse timecode and return zero if none matched
def soft_parse(input, with_fps = DEFAULT_FPS)
parse(input) rescue new(0, with_fps)
end
# Parse timecode entered by the user. Will raise if the string cannot be parsed.
# The following formats are supported:
# * 10h 20m 10s 1f (or any combination thereof) - will be disassembled to hours, frames, seconds and so on automatically
# * 123 - will be parsed as 00:00:01:23
# * 00:00:00:00 - will be parsed as zero TC
def parse(input, with_fps = DEFAULT_FPS)
# Drop frame goodbye
if (input =~ DF_TC_RE)
raise Error, "We do not support drop-frame TC"
# 00:00:00:00
elsif (input =~ COMPLETE_TC_RE)
atoms_and_fps = input.scan(COMPLETE_TC_RE).to_a.flatten.map{|e| e.to_i} + [with_fps]
return at(*atoms_and_fps)
# 00:00:00+00
elsif (input =~ COMPLETE_TC_RE_24)
atoms_and_fps = input.scan(COMPLETE_TC_RE_24).to_a.flatten.map{|e| e.to_i} + [24]
return at(*atoms_and_fps)
# 00:00:00.0
elsif input =~ FRACTIONAL_TC_RE
parse_with_fractional_seconds(input, with_fps)
# 00:00:00:000
elsif input =~ TICKS_TC_RE
parse_with_ticks(input, with_fps)
# 10h 20m 10s 1f 00:00:00:01 - space separated is a sum of parts
elsif input =~ /\s/
parts = input.gsub(/\s/, ' ').split.reject{|e| e.strip.empty? }
raise CannotParse, "No atoms" if parts.empty?
parts.map{|part| parse(part, with_fps) }.inject{|sum, p| sum + p.total }
# 10s
elsif input =~ /^(\d+)s$/
return new(input.to_i * with_fps, with_fps)
# 10h
elsif input =~ /^(\d+)h$/i
return new(input.to_i * 60 * 60 * with_fps, with_fps)
# 20m
elsif input =~ /^(\d+)m$/i
return new(input.to_i * 60 * with_fps, with_fps)
# 60f - 60 frames, or 2 seconds and 10 frames
elsif input =~ /^(\d+)f$/i
return new(input.to_i, with_fps)
# Only a bunch of digits, treat 12345 as 00:01:23:45
elsif (input =~ /^(\d+)$/)
atoms_len = 2 * 4
# left-pad input AND truncate if needed
padded = input[0..atoms_len].rjust(8, "0")
atoms = padded.scan(/(\d{2})/).flatten.map{|e| e.to_i } + [with_fps]
return at(*atoms)
else
raise CannotParse, "Cannot parse #{input} into timecode, unknown format"
end
end
# Initialize a Timecode object at this specfic timecode
def at(hrs, mins, secs, frames, with_fps = DEFAULT_FPS)
validate_atoms!(hrs, mins, secs, frames, with_fps)
total = (hrs*(60*60*with_fps) + mins*(60*with_fps) + secs*with_fps + frames).round
new(total, with_fps)
end
# Validate the passed atoms for the concrete framerate
def validate_atoms!(hrs, mins, secs, frames, with_fps)
case true
when hrs > 999
raise RangeError, "There can be no more than 999 hours, got #{hrs}"
when mins > 59
raise RangeError, "There can be no more than 59 minutes, got #{mins}"
when secs > 59
raise RangeError, "There can be no more than 59 seconds, got #{secs}"
when frames > (with_fps - 1)
raise RangeError, "There can be no more than #{with_fps - 1} frames @#{with_fps}, got #{frames}"
end
end
# Parse a timecode with fractional seconds instead of frames. This is how ffmpeg reports
# a timecode
def parse_with_fractional_seconds(tc_with_fractions_of_second, fps = DEFAULT_FPS)
fraction_expr = /\.(\d+)$/
fraction_part = ('.' + tc_with_fractions_of_second.scan(fraction_expr)[0][0]).to_f
seconds_per_frame = 1.0 / fps.to_f
frame_idx = (fraction_part / seconds_per_frame).floor
tc_with_frameno = tc_with_fractions_of_second.gsub(fraction_expr, ":%02d" % frame_idx)
parse(tc_with_frameno, fps)
end
# Parse a timecode with ticks of a second instead of frames. A 'tick' is defined as
# 4 msec and has a range of 0 to 249. This format can show up in subtitle files for digital cinema
def parse_with_ticks(tc_with_ticks, fps = DEFAULT_FPS)
ticks_expr = /(\d{3})$/
ticks_part = (tc_with_ticks.scan(ticks_expr)[0][0]).to_i
seconds_per_frame = 1.0 / fps
frame_idx = ((ticks_part * 0.004) / seconds_per_frame ).floor
tc_with_frameno = tc_with_ticks.gsub(ticks_expr, "%02d" % frame_idx)
parse(tc_with_frameno, fps)
end
# create a timecode from the number of seconds. This is how current time is supplied by
# QuickTime and other systems which have non-frame-based timescales
def from_seconds(seconds_float, the_fps = DEFAULT_FPS)
total_frames = (seconds_float.to_f * the_fps.to_f).to_i
new(total_frames, the_fps)
end
# Some systems (like SGIs) and DPX format store timecode as unsigned integer, bit-packed. This method
# unpacks such an integer into a timecode.
def from_uint(uint, fps = DEFAULT_FPS)