[rtcweb] New VP8 vs H.264 tests uploaded

[Adrian Grange <[e-mail]>]

We have uploaded a new set of test results comparing VP8 to H.264. This
latest set contains fixes for some of the problems in the previous set. We
would like to extend our thanks to those who made suggestions as to how we
could improve our methodology and encourage suggestions as to how we can
make further improvements.

In these tests we run x264 with the "veryslow" preset and VP8 with the
"good, speed 0" setting in an attempt to produce comparable results.

An overview of our results is available as follows:

- A Quality comparison (psnr):
http://downloads.webmproject.org/ietf_tests/vp8_vs_h264_quality.html

- An Encode Speed comparison:
http://downloads.webmproject.org/ietf_tests/vp8_vs_h264_speed.html

- A comparison of the aggregate time required to decode all of the clips in
the test:
http://downloads.webmproject.org/ietf_tests/vp8vsh264-decodetime.txt

All of our test scripts can either be downloaded from:
http://downloads.webmproject.org/ietf_tests/vp8_vs_h264.tar.xz
or checked out of our git/gerrit repository:
git clone http://git.chromium.org/webm/vpx_codec_comparison.git

The file README.txt, contained within, presents details of how to build and
run the tests.

The compressed video files--the output from the quality tests--can also be
downloaded:

VP8:
http://downloads.webmproject.org/ietf_tests/vp8_videos/index.html

H.264:
http://downloads.webmproject.org/ietf_tests/h264_videos/index.html

Adrian Grange