print "-> Creating the MKV video file '$opt_o'\n";
my $cmd = "$mkvmerge --title \"$opt_t\" $output_file_options -o \"$opt_o\"";
+
+# Make our input file command line options for all the videos
my $video_count = 0;
+my @video_tmp_files;
foreach my $video (sort{$videos{$a} <=> $videos{$b}} keys %videos) {
+ # Detect if the input file is interlaced or not.
+ # There is a bug in mkvmerge 5.0.1 and earlier where if the video content is 1080i, it doesn't mux it properly, and it stutters.
+ # The quick solution to this issue is to run the interlaced video file through ffmpeg and tell it to copy the video/audio streams to a mkv container.
+ # We will then merge this temporarily created mkv container into the final mkv container instead of the original interlaced video.
+ # http://ubuntuforums.org/showthread.php?t=1627194
+ # http://forum.doom9.org/showthread.php?t=155732&page=31
+ my $interlaced = system('ffmpeg -i "$video" 2>&1 | grep -q "frame rate differs"');
+ if($interlaced != 0) {
+ my $video_mkv = $video;
+ my $video_ext = $video;
+ $video_ext =~ s/.*\.(\S+)$/$1/;
+ print " Detected interlaced video content: $video\n";
+ if($video_ext !~ /mkv/i) {
+ $video_mkv =~ s/\.[^.]*$//; $video_mkv .= ".mkv";
+ print " Re-muxing the interlaced video content as an mkv file: $video_mkv\n";
+ my $make_mkv_cmd = "ffmpeg -i \"$video\" -scodec copy -acodec copy -vcodec copy -f matroska \"$video_mkv\" > /dev/null 2>&1";
+ if(! defined $opt_s) {
+ my $errno = system("$make_mkv_cmd");
+ $errno = $errno >> 8;
+ if($errno > 1) {
+ unlink "$video_mkv";
+ die "-E- ffmpeg encountered some errors with exit code $errno\n";
+ }
+ }
+ # Push the name of our intermediate video file onto a list of files to delete on exit
+ push(@video_tmp_files, "$video_mkv");
+ # Update the name of our video file to equal the name of our new intermediate video file name
+ $video = $video_mkv;
+ }
+ } else {
+ print " Detected progressive video content: $video\n";
+ }
+ # Create our intput file command line options for this video
if($video_count == 0) {
$cmd .= " $input_file_options \"$video\"";
} else {
}
$video_count++;
}
-print "$cmd\n";
+
+# Execute our command line
+print "\n$cmd\n";
if(! defined $opt_s) {
my $errno = system("$cmd");
$errno = $errno >> 8;
# Remove the temporary file used for the chapter generation
if(-e "$tmpfile") { unlink "$tmpfile"; }
+# Remove any temporary video files created during the merge process
+foreach my $video (@video_tmp_files) {
+ if(-e "$video") { unlink "$video"; }
+}
+
####################################################################################################
#!/bin/bash
-# step 1: convert the mkv to mpg ; many mkv files do not directly get converted to mp4
-mencoder "$1" -ovc lavc -lavcopts vcodec=mpeg1video -aid 0 -oac pcm -o delete_me.mpg
+INPUT=$1
+FILENAME=${INPUT%%.*}
+OUTPUT="$FILENAME.mp4"
-# step 2: convert the mpg file to mp4
-mencoder -of lavf -lavfopts format=mp4 -oac lavc -ovc lavc -lavcopts \
-aglobal=1:vglobal=1:acodec=libfaac:vcodec=mpeg4:abitrate=128:vbitrate=640:keyint=250:mbd=1:vqmax=10:lmax=10:turbo -af lavcresample=44100 \
--vf harddup,scale=640:-3 "delete_me.mpg" -o "$1.mp4"
+echo "-> Converting $INPUT to $OUTPUT file"
-# step 3: delete the temporary huge sized mpg file
-rm "delete_me.mpg"
+if [[ -e "$OUTPUT" ]]; then
+ echo "-E- Output file $OUTPUT already exists. Aborting..."
+ exit 1
+fi
+
+ffmpeg -i $INPUT \
+ -b:v 3000k \
+ -vcodec libx264 \
+ -acodec copy \
+ -coder 1 \
+ -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 \
+ -subq 5 \
+ -me_range 16 \
+ -g 250 \
+ -keyint_min 25 \
+ -sc_threshold 40 \
+ -i_qfactor 0.71 \
+ -threads 2 \
+ $OUTPUT
####################################################################################################
# Command Line Options
-getopts("c:i:o:se:");
+getopts("c:i:o:kse:");
if(! -x $ffmpeg) { die "-E- Unable to find required program: ffmpeg\n"; }
if(! defined $opt_i) { &usage(); die "-E- Missing required argument input video name: -i <input.mkv>\n"; }
print " -e <ext> Specify the extension that should be used on the output files.\n";
print " This is automatically determined. You only need to specify it if autodetection fails.\n";
print " -s Simulate mode. Don't actually make the video, but tell us what you will do\n";
+ print " -k Keep intermediate mkv file created during the extraction/conversion of mp4 clips\n";
print "\n";
return 1;
}
# SUBROUTINES
sub detect_ext {
- my ($ffmpeg_info) = @_;
+ my ($ffmpeg_info, $interlaced) = @_;
my $h264 = 0;
my $h264_high = 0;
# Quicktime/MOV
if($h264 && $pcm_s16le) { return "mov"; }
# MTS
- if($h264_high && $ac3) { return "mp4"; }
+ if($h264_high && $ac3) { if($interlaced) { return "mkv"; } else { return "mp4"; } }
# 3GP/MP4
- if($h264 && $aac) { return "mp4"; }
+ if($h264 && $aac) { if($interlaced) { return "mkv"; } else { return "mp4"; } }
return "UNKNOWN";
}
if($opt_c =~ /all/) { $all_chapters = 1; }
print "-> Extracting the following chapters from $opt_i: @chapters\n";
+my $interlaced = system('ffmpeg -i "$opt_i" 2>&1 | grep -q "frame rate differs"');
+if($interlaced != 0) {
+ print " Detected interlaced video content\n";
+} else {
+ print " Detected progressive video content\n";
+}
+
# Use ffmpeg to extract the list of chapters available to rip
# For each chapter specified on the command line, use ffmpeg to extract a video clip from that chapter
my @ffmpeg_info = `$ffmpeg -i $opt_i 2>&1`;
if($all_chapters || &export_chapter(\@chapters,$chapter)) {
$ext = "UNKNOWN";
if(defined $opt_e) { $ext = $opt_e; }
- else { $ext = &detect_ext(\@ffmpeg_info); }
+ else { $ext = &detect_ext(\@ffmpeg_info, $interlaced); }
if($ext =~ /UNKNOWN/) { die "-E- Unable to determine the file type/extension to use for the output videos. Specify it with the -e <ext> option.\n"; }
$dstfile = $opt_o . ".c" . sprintf("%03d",$chapter) . "." . $ext;
- print "-> Exporting $chapter to $dstfile: ";
+ print "-> Exporting $chapter to $dstfile:\n";
$cmd = "ffmpeg -ss $start -t $duration -i $opt_i -map 0 -vcodec copy -acodec copy $dstfile 2>&1";
if(defined $opt_s) {
print "$cmd\n";
$errno = $errno >> 8;
if($errno > 0) { die "-E- ffmpeg encountered some errors with exit code $errno\n"; }
}
+ if($interlaced && $ext =~ /mkv/i) {
+ $ext = "mp4";
+ $srcfile = $dstfile;
+ $dstfile = $dstfile = $opt_o . ".c" . sprintf("%03d",$chapter) . "." . $ext;
+ $cmd = "mencoder -oac copy -ovc copy -of lavf -lavfopts format=mp4 -o $dstfile $srcfile";
+ if(defined $opt_s) {
+ print "$cmd\n";
+ } else {
+ print "\n";
+ print "$cmd\n";
+ $errno = system("$cmd");
+ $errno = $errno >> 8;
+ if(! defined $opt_k) { unlink "$srcfile"; }
+ if($errno > 0) { die "-E- mencoder encountered some errors with exit code $errno\n"; }
+ }
+ }
}
}
}
projects / videoscripts / .git / commitdiff
