No color space was defined for these videos, making any correct rendering impossible.
We modify the h264 stream metadata, by marking it as being bt601.
This is done with the ffmpeg command:
ffmpeg -i dom/media/test/short.mp4 -codec copy -bsf:v h264_metadata=colour_primaries=6:transfer_characteristics=6:matrix _coefficients=6 -map 0
Differential Revision: https://phabricator.services.mozilla.com/D26871
--HG--
extra : moz-landing-system : lando
Add reftests that test the ImageRendering property on video (NativeTexture external images), JS-based ImageRendering changes and inequality of results between different ImageRendering settings. Also include a simple h264 mp4 with minimal lossy encoding. OSX fuzzing values determined by try run.
reftest is disabled on windows due to localized try readback errors that can't be reproduced.
MozReview-Commit-ID: 379PZsRE5d6
--HG--
extra : rebase_source : b990572c0f33860998eb5485824e417387d3e204
