+
+ # Re-quantize or re-compress the input video to reduce the resulting output filesize
+ # This also gives us a chance to deinterlace the video as well
+ # Only re-quantize for .MTS videos
+ # We can re-compress any input video
+ my $rotated = "none";
+ if(((defined $opt_q) && ($video_ext =~ /mts/i)) || (defined $opt_z)) {
+
+ my $handbrake_options = "";
+
+ # Set our output video filename
+ my $video_mp4 = $video; $video_mp4 =~ s/\.[^.]*$//; $video_mp4 .= ".hb.mp4";
+
+ # Don't recompress certain file extensions
+ # Unless the video is not progressive or is rotated, then we do need to recompress it to deinterlace or unrotate it
+ my $no_recompress = 0;
+ if($no_recompress_file_ext && $progressive && ($video =~ $no_recompress_file_ext)) { $no_recompress = 1; }
+
+ # Set our rotate option accordingly to rotate videos taken in portrait mode to landscape
+ my $rotate = `$ffprobe "$video" 2>&1 | grep -e rotate | awk '{print \$3}'`; chomp($rotate);
+ if($rotate ne "") {
+ print " Detected rotated input video ($rotate). Rotating video to: $video_mp4\n";
+ if($rotate eq "90") { $handbrake_options .= " --rotate=4"; $rotated = "90"; }
+ if($rotate eq "180") { $handbrake_options .= " --rotate=3"; $rotated = "none"; }
+ $no_recompress = 0; # We have to recompress this video to unrotate it
+ }
+
+ # Set our requantize factor accordingly
+ if(defined $opt_q and ! -f $video_mp4) {
+ print " Re-quantizing input video content to: $video_mp4\n";
+ $handbrake_options = $handbrake_requantize_options;
+ if(!$progressive) { $handbrake_options = "-q $interlaced_requantize_quality"; }
+ else { $handbrake_options = "-q $progressive_requantize_quality"; }
+ };
+
+ # Set our recompress options accordingly
+ if(defined $opt_z and ! -f $video_mp4 and ! $no_recompress) {
+ print " Re-compressing input video content to: $video_mp4\n";
+ $handbrake_options = $handbrake_recompress_options;
+ # We want our audio to be passed-through by default, so detect how the audio of the input is encoded, and tell handbrake to make the output match
+ if($opt_v) { print " $ffmpeg -i \"$video\" 2>&1 | grep \"Audio\" | sed -r -e 's/.*?Audio: (\\S+).*?/\\1/' | tail -n 1\n"; }
+ $AUDIO_CODEC=`$ffmpeg -i "$video" 2>&1 | grep "Audio" | sed -r -e 's/.*?Audio: (\\S+).*?/\\1/' | tail -n 1`; chomp($AUDIO_CODEC);
+ $AUDIO_CODEC =~ s/,$//g;
+ if($AUDIO_CODEC eq "") { print "-W- Unable to extract audio track encoding from input video file: $video\n"; $handbrake_options .= " -E copy"; }
+ else { $handbrake_options .= " -E copy:$AUDIO_CODEC"; }
+ }
+
+ # Set our de-interlace option accordingly
+ my $deinterlace_option = "";
+ if(!$progressive) { $deinterlace_option = "-d"; }
+
+ # Use HandBrake to requantize/recompress/deinterlace the input video
+ if(! $no_recompress and ! -f $video_mp4) {
+ my $handbrake_cmd = "$handbrake $deinterlace_option $handbrake_options -i \"$video\" -o \"$video_mp4\" >> \"$tmpfile\" 2>&1";
+ if($opt_v) { print " $handbrake_cmd\n"; }
+ if(! defined $opt_s and ! -f $video_mp4) {
+ my $errno = system("$handbrake_cmd");
+ $errno = $errno >> 8;
+ if($errno > 1) {
+ unlink "$video_mp4";
+ die "-E- handbrake encountered some errors with exit code $errno\n";
+ }
+ # Restore the metadata from the original video to the intermediate video to preserve the creation_time of the original video metadata in it
+ `$ffmpeg -i \"$video\" -i \"$video_mp4\" -map 1 -map_metadata 0 -c copy -movflags use_metadata_tags \"$video_mp4.fixed.mp4\" >> \"$tmpfile\" 2>&1`;
+ $errno=system("mv \"$video_mp4.fixed.mp4\" \"$video_mp4\" 2>/dev/null");
+ if($errno) { print "-E- Error moving fixed metadata video back to dstfile: $video_mp4.fixed.mp4 -> $video_mp4\n"; }
+ }
+ } else {
+ if($no_recompress) {
+ print " Copying input video content to: $video_mp4\n";
+ system("cp \"$video\" \"$video_mp4\"") if(!$opt_s);
+ }
+ }
+
+ # Push the name of our intermediate video file onto a list of files to delete on exit
+ push(@video_tmp_files, "$video_mp4");
+ # Copy the modification date from the src video to the dst video
+ system("touch \"$video_mp4\" -r \"$video\"");
+ # Update the name of our video file to equal the name of our new intermediate video file name
+ $video = $video_mp4;
+ }
+
+
+ ####################################################################################################
+ # 2) Group the encoded videos together by their parameters
+ # We can merge videos that have the same parameters together in a destination video file.
+
+ # Dimensions
+ my $video_stream_info = `$ffprobe "$video" 2>&1 | grep -e "Stream.*Video"`; chomp($video_stream_info);
+ my $dimensions = "unknown";
+ if($video_stream_info =~ / (\d+x\d+)[,| ]/) { $dimensions = "$1"; }
+ else { print "-W- ffprobe was unable to find dimensions for video: $video\n"; }
+
+ # Video Codec
+ my $video_stream_info = `$ffprobe "$video" 2>&1 | grep -e "Stream.*Video"`; chomp($video_stream_info);
+ my $video_codec = "unknown";
+ if($video_stream_info =~ / Video: (\S+) /) { $video_codec = "$1"; }
+ else { print "-W- ffprobe was unable to find video codec for video: $video\n"; }
+
+ # Color space
+ my $color_space = "unknown";
+ if($video_stream_info =~ /, (\S+)\(.*?\)/) { $color_space = "$1"; }
+ else { print "-W- ffprobe was unable to find color space for video: $video\n"; }
+
+ # Audio Handler
+ my $audio_stream_info = `$ffprobe "$video" 2>&1 | grep -e "Stream.*Audio"`; chomp($video_stream_info);
+ my $audio_handler = "unknown";
+ if($audio_stream_info =~ / Hz, ([^,]+), /) { $audio_handler = "$1"; }
+ else { print "-W- ffprobe was unable to find audio handler for video: $video\n"; }
+
+ # Audio Codec
+ my $audio_codec = "unknown";
+ if($audio_stream_info =~ /Audio: (\S+) /) { $audio_codec = "$1"; }
+ else { print "-W- ffprobe was unable to find audio codec for video: $video\n"; }
+
+ # Now create our parameters string
+ my $parameters = "$dimensions.$video_codec.$color_space.$audio_handler.$audio_codec";
+
+ print " Adding video $video to be merged into output video file: $opt_o.$parameters.mkv\n" if($opt_v);
+ push @{$merge_videos{"$parameters"}}, $video;
+}
+
+if($opt_v) {
+ print "\n-> Merge videos hash:\n";
+ print Dumper(\%merge_videos);
+ print "\n";