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Fix reference frame size restrictions.

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The issue was introduced by commit g9f37d14 with adding explicit
restrictions on reference-frame scale factors. The restriction
is checked against aligned-by-8 frame dimensions, not against
original ones. So, for example, frame of 35×35 actually can refer
to frame of 70×70, but the new check won't allow this. It will
compare 35 vs 72 (not 70), so 2x downscale limit will be exceeded.

Change-Id: Ic663693034440f64ac8312cbff9e1e773a921060
This commit is contained in:
Jim Bankoski 2014-07-28 08:37:25 -07:00
parent ac1f06188d
commit 899585ebe9
4 changed files with 7 additions and 3 deletions
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2
test/test-data.sha1
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@ -678,3 +678,5 @@ eb438c6540eb429f74404eedfa3228d409c57874 desktop_640_360_30.yuv
edd86a1f5e62fd9da9a9d46078247759c2638009 tacomasmallcameramovement_640_480_30.yuv
9a70e8b7d14fba9234d0e51dce876635413ce444 thaloundeskmtg_640_480_30.yuv
e7d315dbf4f3928779e0dc624311196d44491d32 niklas_1280_720_30.yuv
c77e4a26616add298a05dd5d12397be22c0e40c5 vp90-2-18-resize.ivf
c77e4a26616add298a05dd5d12397be22c0e40c5 vp90-2-18-resize.ivf

2
test/test.mk
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@ -782,6 +782,8 @@ LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-16-intra-only.webm
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-16-intra-only.webm.md5
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-17-show-existing-frame.webm
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-17-show-existing-frame.webm.md5
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-18-resize.ivf
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-18-resize.ivf.md5
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp91-2-04-yuv444.webm
LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp91-2-04-yuv444.webm.md5

2
test/test_vectors.cc
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@ -181,7 +181,7 @@ const char *const kVP9TestVectors[] = {
"vp90-2-14-resize-fp-tiles-8-2.webm", "vp90-2-14-resize-fp-tiles-8-4.webm",
"vp90-2-15-segkey.webm", "vp90-2-15-segkey_adpq.webm",
"vp90-2-16-intra-only.webm", "vp90-2-17-show-existing-frame.webm",
"vp91-2-04-yuv444.webm",
"vp90-2-18-resize.ivf", "vp91-2-04-yuv444.webm",
};
const int kNumVP9TestVectors = NELEMENTS(kVP9TestVectors);
#endif // CONFIG_VP9_DECODER

4
vp9/decoder/vp9_decodeframe.c
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@ -688,8 +688,8 @@ static void setup_frame_size_with_refs(VP9_COMMON *cm,
// has valid dimensions.
for (i = 0; i < REFS_PER_FRAME; ++i) {
RefBuffer *const ref_frame = &cm->frame_refs[i];
has_valid_ref_frame |= valid_ref_frame_size(ref_frame->buf->y_width,
ref_frame->buf->y_height,
has_valid_ref_frame |= valid_ref_frame_size(ref_frame->buf->y_crop_width,
ref_frame->buf->y_crop_height,
width, height);
}
if (!has_valid_ref_frame)