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Diffstat (limited to 'abs/extra/myth2ipod/iPod.pm')
| -rwxr-xr-x | abs/extra/myth2ipod/iPod.pm | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/abs/extra/myth2ipod/iPod.pm b/abs/extra/myth2ipod/iPod.pm new file mode 100755 index 0000000..24eae99 --- /dev/null +++ b/abs/extra/myth2ipod/iPod.pm @@ -0,0 +1,184 @@ +# +# $Date: 2006-01-18 00:15:31 -0800 (Wed, 18 Jan 2006) $ +# $Revision: 226 $ +# $Author: xris $ +# +# export::ffmpeg::iPod +# + +package export::ffmpeg::iPod; + use base 'export::ffmpeg'; + +# Load the myth and nuv utilities, and make sure we're connected to the database + use nuv_export::shared_utils; + use nuv_export::cli; + use nuv_export::ui; + use mythtv::db; + use mythtv::recordings; + +# Load the following extra parameters from the commandline + add_arg('quantisation|q=i', 'Quantisation'); + add_arg('a_bitrate|a=i', 'Audio bitrate'); + add_arg('v_bitrate|v=i', 'Video bitrate'); + add_arg('multipass!', 'Enably two-pass encoding.'); + + sub new { + my $class = shift; + my $self = { + 'cli' => qr/\bipod\b/i, + 'name' => 'Export to iPod', + 'enabled' => 1, + 'errors' => [], + 'defaults' => {}, + }; + bless($self, $class); + + # Initialize the default parameters + $self->load_defaults(); + + # Verify any commandline or config file options + die "Audio bitrate must be > 0\n" unless (!defined $self->val('a_bitrate') || $self->{'a_bitrate'} > 0); + die "Video bitrate must be > 0\n" unless (!defined $self->val('v_bitrate') || $self->{'v_bitrate'} > 0); + + # VBR, multipass, etc. + if ($self->val('multipass')) { + $self->{'vbr'} = 0; + } + elsif ($self->val('quantisation')) { + die "Quantisation must be a number between 1 and 31 (lower means better quality).\n" if ($self->{'quantisation'} < 1 || $self->{'quantisation'} > 31); + $self->{'vbr'} = 1; + } + + # Initialize and check for ffmpeg + $self->init_ffmpeg(); + + # Can we even encode ipod? + # if (!$self->can_encode('mov')) { + # push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to mov file formats."; + # } + if (!$self->can_encode('xvid')) { + push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to xvid video."; + } + if (!$self->can_encode('aac')) { + push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to aac audio."; + } + # Any errors? disable this function + $self->{'enabled'} = 0 if ($self->{'errors'} && @{$self->{'errors'}} > 0); + # Return + return $self; + } + +# Load default settings + sub load_defaults { + my $self = shift; + # Load the parent module's settings + $self->SUPER::load_defaults(); + # Default bitrates + $self->{'defaults'}{'v_bitrate'} = 384; + $self->{'defaults'}{'a_bitrate'} = 64; + } + +# Gather settings from the user + sub gather_settings { + my $self = shift; + # Load the parent module's settings + $self->SUPER::gather_settings(); + # Audio Bitrate + $self->{'a_bitrate'} = query_text('Audio bitrate?', + 'int', + $self->val('a_bitrate')); + # VBR options + if (!$is_cli) { + $self->{'vbr'} = query_text('Variable bitrate video?', + 'yesno', + $self->val('vbr')); + if ($self->{'vbr'}) { + $self->{'multipass'} = query_text('Multi-pass (slower, but better quality)?', + 'yesno', + $self->val('multipass')); + if (!$self->{'multipass'}) { + while (1) { + my $quantisation = query_text('VBR quality/quantisation (1-31)?', + 'float', + $self->val('quantisation')); + if ($quantisation < 1) { + print "Too low; please choose a number between 1 and 31.\n"; + } + elsif ($quantisation > 31) { + print "Too high; please choose a number between 1 and 31\n"; + } + else { + $self->{'quantisation'} = $quantisation; + last; + } + } + } + } else { + $self->{'multipass'} = 0; + } + # Ask the user what video bitrate he/she wants + $self->{'v_bitrate'} = query_text('Video bitrate?', + 'int', + $self->val('v_bitrate')); + } + } + + sub export { + my $self = shift; + my $episode = shift; + # Force to 4:3 aspect ratio + $self->{'out_aspect'} = 1.3333; + $self->{'aspect_stretched'} = 1; + # PAL or NTSC? + my $standard = ($episode->{'finfo'}{'fps'} =~ /^2(?:5|4\.9)/) ? 'PAL' : 'NTSC'; + $self->{'width'} = 320; + $self->{'height'} = ($standard eq 'PAL') ? '288' : '240'; + $self->{'out_fps'} = ($standard eq 'PAL') ? 25 : 29.97; + # Embed the title + my $safe_title = shell_escape($episode->{'show_name'}.' - '.$episode->{'title'}); + # Dual pass? + if ($self->{'multipass'}) { + # Build the common ffmpeg string + my $ffmpeg_xtra = ' -b ' . $self->{'v_bitrate'} + .' -bufsize 65535' + .' -vcodec xvid -acodec aac ' + .' -ab ' . $self->{'a_bitrate'} + ." -f mp4 -title $safe_title"; + # Add the temporary file to the list + push @tmpfiles, "/tmp/xvid.$$.log"; + # Back up the path and use /dev/null for the first pass + my $path_bak = $self->{'path'}; + $self->{'path'} = '/dev/null'; + # Build the ffmpeg string + print "First pass...\n"; + $self->{'ffmpeg_xtra'} = " -pass 1 -passlogfile '/tmp/divx.$$.log'" + .$ffmpeg_xtra; + $self->SUPER::export($episode, ''); + # Restore the path + $self->{'path'} = $path_bak; + # Second Pass + print "Final pass...\n"; + $self->{'ffmpeg_xtra'} = " -pass 2 -passlogfile '/tmp/divx.$$.log'" + .$ffmpeg_xtra; + } + # Single Pass + else { + $self->{'ffmpeg_xtra'} = ' -b ' . $self->{'v_bitrate'} + .(($self->{'vbr'}) + ? ' -qmin '.$self->{'quantisation'} + .' -qmax 31 -minrate 32' + .' -maxrate '.(2*$self->{'v_bitrate'}) + .' -bt 32' + : '') + .' -vcodec xvid -acodec aac ' + .' -ab ' . $self->{'a_bitrate'} + ." -f mp4 -title $safe_title"; + } + # Execute the (final pass) encode + $self->SUPER::export($episode, '.mp4'); + } + +1; #return true + +# vim:ts=4:sw=4:ai:et:si:sts=4 + |