On Mon, Aug 12, 2019 at 5:27 AM Patrick Matthäi <pmatth...@debian.org> wrote:
> Am 12.08.2019 um 13:11 schrieb Горбешко Богдан: > > Package: libmlt-data > > Version: 6.16.0-3 > > Severity: minor > > > > Dear Maintainer, > > > > After the last upgrade, the package became about 230 MBs larger, > > because of a lot of large lumas in PGM format, each about 4 MBs. Is > > there an important reason to keep them uncompressed on a disk? Even > > the fast GZip compression can drastically reduce their size. > > > Hi Dan, > > what is your opionion about this? This is the list of the affected files: > This was intentional to produce transitions with the correct aspect ratio. The PGM images cannot be simply gzip compressed because the PGM reader in MLT is not integrated with zlib. Instead, the package can use the configure option --luma-compress to output compressed PNG. However, these are 8-bit instead of the 16-bit PGM, which provides better quality transitions. Since these are procedurally-generated, I started working on a change to generate the image on-demand instead of reading a file. I plan to do that for the next release.
