NAME

       Media::Convert::Asset::Concat - a Media::Convert::Asset made up of multiple assets

SYNOPSIS

         use Media::Convert::Asset;
         use Media::Convert::Asset::Concat;
         use Media::Convert::Pipe;

         my $file1 = Media::Convert::Asset->new(url => $input_file_1);
         my $file2 = Media::Convert::Asset->new(url => $input_file_2);
         my $input = Media::Convert::Asset::Concat->new(url => "/tmp/concat.txt", components => [$file1, $file2]);
         my $output = Media::Convert::Asset->new(url => $output_file);

         Media::Convert::Pipe->new(inputs => [$input], output => $output, vcopy => 1, acopy => 1)->run();

DESCRIPTION

       The "ffmpeg" command has a "concat" file format, selected with "-f concat", which is
       essentially a text file containing a header, followed by a number of URLs to other files.

       When "ffmpeg" is asked to read from such a file, it will start reading from the first
       file, and then move on to the next file when the data from the first file is complete.

       In order for this to work well, note that all files must be the same format, to beyond the
       level that "Media::Convert::Asset" can detect.  It is probably not safe to use
       "Media::Convert::Asset::Concat" except on files that were created from the same recording.

       Since the files should be the same, "Media::Convert::Asset::Concat" assumes that they are,
       and will run "ffprobe" on only the first of its components when requested.

ATTRIBUTES

       "Media::Convert::Asset::Concat" supports all attributes supported by Media::Convert::Asset
       plus the following:

   components
       Should be an array of Media::Convert::Asset objects making up the contents of this asset.

       To add more components, the "add_component" handle exists.