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Hi all.<br>
<br>
Being interested with DAALA video codec, I've ran some tests on
compression efficiency of key frames compared to VP9, HEVC (HM) and
AVC (JM).<br>
<br>
And it seems not to outperform even AVC. The main comparisson issue
is that it doesn't have constant quantizer mode, only constant
quality. This is somehow similar to VP9.<br>
However on 640x384@24 video sequence key frame only coding <b>DAALA
</b>achieves ~37.6 dB at <b>8500 </b>kbps.<br>
At the same PSNR quality (37.8 dB) <b>HM </b>takes<b> 5741.54</b>
kbps,<br>
<b>AVC</b> takes <b>6644.11</b> kbps<br>
and <b>VP9</b> takes <b>5762.14</b> kbps.<br>
<br>
CLI options are:<br>
--video-quality 8 --keyframe-rate 1 --output daala_enc.ogg
my640x384stream.y4m<br>
<br>
Also is seems that DAALA encoder doesn't have RDO so the comparisson
may not be valid. Anyway how do we know codec efficiency if it can't
do compression with RDO.<br>
<br>
Is there some roadmap on DAALA and maybe other test results or test
suggestions?<br>
<br>
<br>
Regards,<br>
<br>
Maxim Sharabayko<br>
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