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authorJames Meyer <james.meyer@operamail.com>2010-10-23 18:17:40 (GMT)
committerJames Meyer <james.meyer@operamail.com>2010-10-23 18:19:39 (GMT)
commitadbcf19958300e9b6598990184c8815b945ba0ee (patch)
treef4283c850ac0ac202c17e78a637ee7ca8147621b /abs/core-testing/nuvexport/MP4.pm
parent61a68250df10d29b624650948484898334ff22d0 (diff)
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Removed old core and extra from repo. Renamed -testing to core/extra. This will setup the base for the testing branch.
Diffstat (limited to 'abs/core-testing/nuvexport/MP4.pm')
-rwxr-xr-xabs/core-testing/nuvexport/MP4.pm316
1 files changed, 0 insertions, 316 deletions
diff --git a/abs/core-testing/nuvexport/MP4.pm b/abs/core-testing/nuvexport/MP4.pm
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--- a/abs/core-testing/nuvexport/MP4.pm
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-#!/usr/bin/perl -w
-#
-# ffmpeg-based MP4 (iPod) video module for nuvexport.
-#
-# Many thanks to cartman in #ffmpeg, and for the instructions at
-# http://rob.opendot.cl/index.php?active=3&subactive=1
-# http://videotranscoding.wikispaces.com/EncodeForIPodorPSP
-#
-# @url $URL: svn+ssh://xris@svn.mythtv.org/var/lib/svn/trunk/mythextras/nuvexport/export/ffmpeg/MP4.pm $
-# @date $Date: 2008-02-16 20:54:43 -0800 (Sat, 16 Feb 2008) $
-# @version $Revision: 16110 $
-# @author $Author: xris $
-# @copyright Silicon Mechanics
-#
-
-package export::ffmpeg::MP4;
- 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::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!', 'Enable two-pass encoding.');
- add_arg('mp4_codec=s', 'Video codec to use for MP4/iPod video (mpeg4 or h264).');
- add_arg('mp4_fps=s', 'Framerate to use: auto, 25, 23.97, 29.97.');
- add_arg('ipod!', 'Produce ipod-compatible output.');
-
- sub new {
- my $class = shift;
- my $self = {
- 'cli' => qr/\b(?:mp4|ipod)\b/i,
- 'name' => 'Export to MP4 (iPod)',
- 'enabled' => 1,
- 'errors' => [],
- 'defaults' => {},
- };
- bless($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);
- die "Width must be > 0\n" unless (!defined $self->val('width') || $self->{'width'} =~ /^\s*\D/ || $self->{'width'} > 0);
- die "Height must be > 0\n" unless (!defined $self->val('height') || $self->{'height'} =~ /^\s*\D/ || $self->{'height'} > 0);
-
- # VBR, multipass, etc.
- if ($self->val('multipass')) {
- $self->{'vbr'} = 1;
- }
- elsif ($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
- $self->init_ffmpeg();
-
- # Can we even encode mp4?
- if (!$self->can_encode('mp4')) {
- push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to mp4 file formats.";
- }
- if (!$self->can_encode('aac') && !$self->can_encode('libfaac')) {
- push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to aac audio.";
- }
- if (!$self->can_encode('mpeg4') && !$self->can_encode('h264') && !$self->can_encode('libx264')) {
- push @{$self->{'errors'}}, "Your ffmpeg installation doesn't support encoding to either mpeg4 or h264 video.";
- }
- # 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 settings
- $self->{'defaults'}{'v_bitrate'} = 384;
- $self->{'defaults'}{'a_bitrate'} = 64;
- $self->{'defaults'}{'width'} = 320;
- $self->{'defaults'}{'mp4_codec'} = 'mpeg4';
- # Verify commandline options
- if ($self->val('mp4_codec') !~ /^(?:mpeg4|h264)$/i) {
- die "mp4_codec must be either mpeg4 or h264.\n";
- }
- $self->{'mp4_codec'} =~ tr/A-Z/a-z/;
-
- }
-
-# 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',
- $self->val('a_bitrate'));
- # Video options
- if (!$is_cli) {
- # iPod compatibility mode?
- $self->{'ipod'} = query_text('Enable iPod compatibility?',
- 'yesno',
- $self->val('ipod'));
- # Video codec
- if ($self->{'ffmpeg_vers'} eq 'svn') {
- while (1) {
- my $codec = query_text('Video codec (mpeg4 or h264)?',
- 'string',
- $self->{'mp4_codec'});
- if ($codec =~ /^m/) {
- $self->{'mp4_codec'} = 'mpeg4';
- last;
- }
- elsif ($codec =~ /^h/) {
- $self->{'mp4_codec'} = 'h264';
- last;
- }
- print "Please choose either mpeg4 or h264\n";
- }
- }
- else {
- $self->{'mp4_codec'} = 'mpeg4';
- print "Using the mpeg4 codec (h.264 mp4/ipod encoding requires the svn version of ffmpeg.)\n";
- }
- # Video bitrate options
- $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',
- $self->val('v_bitrate'));
- }
- # Complain about h264
- if ($self->{'mp4_codec'} eq 'h264' && $self->{'ffmpeg_vers'} ne 'svn') {
- die "h.264 mp4/ipod encoding requires the svn version of ffmpeg.\n";
- }
- # Loop, in case we need to verify ipod compatibility
- while (1) {
- # Query the resolution
- $self->query_resolution();
- # Warn about ipod resolution
- if ($self->val('ipod') && ($self->{'height'} > 480 || $self->{'width'} > 640)) {
- my $note = "WARNING: Video larger than 640x480 will not play on an iPod.\n";
- die $note if ($is_cli);
- print $note;
- next;
- }
- # Done looping
- last;
- }
- }
-
- sub export {
- my $self = shift;
- my $episode = shift;
- # Make sure this is set to anamorphic mode
- $self->{'aspect_stretched'} = 1;
- # Framerate
- my $standard = ($episode->{'finfo'}{'fps'} =~ /^2(?:5|4\.9)/) ? 'PAL' : 'NTSC';
- if ($standard eq 'PAL') {
- $self->{'out_fps'} = 25;
- }
- elsif ($self->val('mp4_fps') =~ /^23/) {
- $self->{'out_fps'} = 23.97;
- }
- elsif ($self->val('mp4_fps') =~ /^29/) {
- $self->{'out_fps'} = 29.97;
- }
- else {
- $self->{'out_fps'} = ($self->{'width'} > 320 || $self->{'height'} > 288) ? 29.97 : 23.97;
- }
- # Embed the title
- $safe_title = $episode->{'title'};
- if ($episode->{'subtitle'} ne 'Untitled') {
- $safe_title .= ' - '.$episode->{'subtitle'};
- }
- my $safe_title = shell_escape($safe_title);
- # Codec name changes between ffmpeg versions
- my $codec = $self->{'mp4_codec'};
- if ($codec eq 'h264' && $self->can_encode('libx264')) {
- $codec = 'libx264';
- }
- # Build the common ffmpeg string
- my $ffmpeg_xtra = ' -vcodec '.$codec
- .$self->param('bit_rate', $self->{'v_bitrate'})
- ;### ." -title $safe_title";
- # Options required for the codecs separately
- if ($self->{'mp4_codec'} eq 'h264') {
- $ffmpeg_xtra .= ' -level 30'
- ### .' -loop 1'
- .' -g 250 -keyint_min 25'
- .' -sc_threshold 40'
- ### .' -rc_eq \'blurCplx^(1-qComp)\''
- .$self->param('bit_rate_tolerance', $self->{'v_bitrate'})
- .$self->param('rc_max_rate', 1500 - $self->{'a_bitrate'})
- .$self->param('rc_buffer_size', 2000)
- .$self->param('i_quant_factor', 0.71428572)
- .$self->param('b_quant_factor', 0.76923078)
- .$self->param('max_b_frames', 0)
- ### .' -me umh' # this will eventually be me_method, but not all ffmpeg versions support it yet
- ;
- }
- else {
- $ffmpeg_xtra .= ' -flags +mv4' ## +trell+loop'
- ### .' -aic 1'
- .' -mbd 1'
- .' -cmp 2 -subcmp 2'
- ;
- }
- # Some shared options
- if ($self->{'multipass'} || $self->{'vbr'}) {
- $ffmpeg_xtra .= $self->param('qcompress', 0.6)
- .$self->param('qmax', 51)
- .$self->param('max_qdiff', 4)
- ;
- }
- # Dual pass?
- if ($self->{'multipass'}) {
- # Apparently, the -passlogfile option doesn't work for h264, so we need
- # to be aware of other processes that might be working in this directory
- if ($self->{'mp4_codec'} eq 'h264' && (-e 'x264_2pass.log.temp' || -e 'x264_2pass.log')) {
- die "ffmpeg does not allow us to specify the name of the multi-pass log\n"
- ."file, and x264_2pass.log exists in this directory already. Please\n"
- ."wait for the other process to finish, or remove the stale file.\n";
- }
- # Add all possible temporary files to the list
- push @tmpfiles, 'x264_2pass.log',
- 'x264_2pass.log.temp',
- 'ffmpeg2pass-0.log';
- # Build the ffmpeg string
- print "First pass...\n";
- $self->{'ffmpeg_xtra'} = ' -pass 1'
- .$ffmpeg_xtra
- .' -f mp4';
- if ($self->{'mp4_codec'} eq 'h264') {
- $self->{'ffmpeg_xtra'} .= ' -refs 1 -subq 1'
- .' -trellis 0'
- ;
- }
- $self->SUPER::export($episode, '', 1);
- # Second Pass
- print "Final pass...\n";
- $ffmpeg_xtra = ' -pass 2 '
- .$ffmpeg_xtra;
- }
- # Single Pass
- else {
- if ($self->{'vbr'}) {
- $ffmpeg_xtra .= ' -qmin '.$self->{'quantisation'};
- }
- }
- # Single/final pass options
- if ($self->{'mp4_codec'} eq 'h264') {
- $ffmpeg_xtra .= ' -refs '.($self->val('ipod') ? 2 : 7)
- .' -subq 7'
- .' -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8'
- .' -flags2 +bpyramid+wpred+mixed_refs+8x8dct' ##+brdo'
- .' -me_range 21'
- .' -trellis 2'
- .' -chromaoffset 1'
- ### .' -slice 2'
- ### .' -cmp 1'
- # These should match the defaults:
- .' -deblockalpha 0 -deblockbeta 0'
- ;
- }
- # Audio codec name changes between ffmpeg versions
- my $acodec = $self->can_encode('libfaac') ? 'libfaac' : 'aac';
- # Don't forget the audio, etc.
- $self->{'ffmpeg_xtra'} = $ffmpeg_xtra
- ." -acodec $acodec -ar 48000 -async 1"
- .$self->param('ab', $self->{'a_bitrate'});
- # Execute the (final pass) encode
- $self->SUPER::export($episode, '.mp4');
- }
-
-1; #return true
-
-# vim:ts=4:sw=4:ai:et:si:sts=4
-