Class: Vidibus::Mp4Encoder

Inherits:
Encoder::Base
  • Object
show all
Defined in:
lib/vidibus/mp4_encoder.rb

Defined Under Namespace

Classes: ProfileError

Constant Summary collapse

VERSION = 
'0.1.2'
AUDIO_CODEC = 
'aac'
VIDEO_CODEC = 
'h264'
VIDEO_PROFILE = 
'main'
VIDEO_CODEC_LEVEL = 
'3.2'
VIDEO_FILTER = 
{
  :baseline => 'yadif=0:-1:1,hqdn3d=1.5:1.5:6:6',
  :main => 'yadif=0:-1:1'
}

Class Method Summary collapse

Class Method Details

.file_extension ⇒ Object 



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# File 'lib/vidibus/mp4_encoder.rb', line 94

def self.file_extension
  'mp4'
end

.profile_presets ⇒ Object

Common profile settings.



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# File 'lib/vidibus/mp4_encoder.rb', line 17

def self.profile_presets
  @profile_presets ||= begin
    {
      :p192 => {
        :video_profile => 'baseline',
        :constant_bit_rate => true,
        :video_bit_rate => 90000,
        :audio_bit_rate => 32000,
        :audio_sample_rate => 32000,
        :audio_channels => 1,
        :width => 192,
        :dimensions_modulus => 4,
        :frame_rate => 10
      },
      :p480 => {
        :video_profile => 'baseline',
        :constant_bit_rate => true,
        :video_bit_rate => 400000,
        :audio_bit_rate => 32000,
        :audio_sample_rate => 32000,
        :audio_channels => 1,
        :width => 480,
        :dimensions_modulus => 4,
        :frame_rate => [29.97, 25]
      },
      :t960 => {
        :video_profile => 'baseline',
        :constant_bit_rate => true,
        :video_bit_rate => 1800000,
        :audio_bit_rate => 96000,
        :audio_sample_rate => 32000,
        :width => 960,
        :frame_rate => [29.97, 25]
      },
      :t1280 => {
        :video_profile => 'baseline',
        :video_bit_rate => 2800000,
        :audio_bit_rate => 128000,
        :audio_sample_rate => 32000,
        :width => 1280,
        :frame_rate => [29.97, 25]
      },
      :w620 => {
        :video_bit_rate => 1000000,
        :audio_bit_rate => 96000,
        :audio_sample_rate => 48000,
        :width => 620,
        :dimensions_modulus => 4,
        :frame_rate => [29.97, 25]
      },
      :w768 => {
        :video_bit_rate => 1400000,
        :audio_bit_rate => 128000,
        :audio_sample_rate => 48000,
        :width => 768,
        :frame_rate => [29.97, 25]
      },
      :w1280 => {
        :video_bit_rate => 2800000,
        :audio_bit_rate => 192000,
        :audio_sample_rate => 48000,
        :width => 1280,
        :frame_rate => [29.97, 25]
      },
      :w1920 => {
        :video_bit_rate => 4500000,
        :audio_bit_rate => 192000,
        :audio_sample_rate => 48000,
        :width => 1920,
        :frame_rate => [29.97, 25]
      }
    }.tap do |p|
      p[:default] = p[:w768]
    end
  end
end