media/test/data: Add RGBA and BGRA raw image

Bug: 944823
Test: None
Change-Id: I904ea85f3a7c08fc75c0c494054f8132bb911253
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1554208Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#648127}

media/test/data/README.md

@@ -788,6 +788,16 @@ Metadata describing bear\_320x192.nv12.yuv.
 #### bear\_320x192.yv12.yuv
 First frame of bear\_320x192\_40frames.yv12.yuv for image\_processor_test.
 
+#### bear\_320x192.rgba
+RAW RGBA format data. This data is created from bear\_320x192.i420.yuv by the
+following command. Alpha channel is always 0xFF because of that.
+`ffmpeg -s 320x192 -pix_fmt yuv420p -i bear_320x192.i420.yuv -vcodec rawvideo -f image2 -pix_fmt rgba bear_320x192.rgba`
+
+#### bear\_320x192.bgra
+RAW BGRA format data. This data is created from bear\_320x192.i420.yuv by the
+following command. Alpha channel is always 0xFF because of that.
+`ffmpeg -s 320x192 -pix_fmt yuv420p -i bear_320x192.i420.yuv -vcodec rawvideo -f image2 -pix_fmt rgba bear_320x192.bgra`
+
 ###  VP9 parser test files:
 
 #### bear-vp9.ivf

media/test/data/bear_320x192.bgra.json

+{
+  "pixel_format": "BRGA",
+  "width": 320,
+  "height": 192,
+  "checksum": "edc7e1721d769695d18cd20c71140ebd"
+}

media/test/data/bear_320x192.rgba.json

+{
+  "pixel_format": "RGBA",
+  "width": 320,
+  "height": 192,
+  "checksum": "b1277dff463d24af3ae4f02bcfa16a32"
+}