tree 3e232f0c270c99a9da6dac2b4bcd31e7f30183c9
parent edec7cd701652be52f555c4f3ee3862fc8def84b
author Jayasanker J <jayasanker.j@ittiam.com> 1627406135 +0530
committer Wan-Teh Chang <wtc@google.com> 1635298150 +0000

Allocate scaled source buffers on the fly

The scaled source buffers are allocated/reallocated on the fly
based on the target dimensions.

For AVIF image encode with speed = 9,

             HEAP Memory reduction(%)
Resolution   threads=1    threads=4
640x360        4.49         2.71
768x512        4.26         2.89
832x480        4.49         3.12
1280x720       4.51         3.59

For threads=4, an average encode time reduction of ~1.12% is
observed for 360p-720p resolutions.

HEAP memory reduction was measured using the following command.
$valgrind --tool=massif ./avifenc ...

Change-Id: I7faf035207ffa9dfab5d57ff8db4ae70b8534d6c