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| author | Deb Mukherjee <debargha@google.com> | 2012-09-04 12:09:05 -0700 |
|---|---|---|
| committer | Deb Mukherjee <debargha@google.com> | 2012-09-04 12:30:09 -0700 |
| commit | c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a (patch) | |
| tree | 68c6e562cb90ae3e5822633d173e05ca2568e0f0 /vp8/common | |
| parent | 7e9a519fbbf1b67965537da91e712f846be6c48e (diff) | |
| download | libvpx-c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a.tar libvpx-c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a.tar.gz libvpx-c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a.tar.bz2 libvpx-c6fd0a5dd65f0723dbabed2f17f12c87b37aab7a.zip | |
Adjusting thresholds in mfqe post-processing
Adjusts some of the qualification thresholds in mfqe to eliminate
artifacts due to wrong decisions. Besides, a new qualification
criteria is used to disable mfqe if the quality of the previous
frame is itself not too good.
Change-Id: I4097c20b7fd4fcc60cc3003c1e33e8faae2ff066
Diffstat (limited to 'vp8/common')
| -rw-r--r-- | vp8/common/mfqe.c | 4 | ||||
| -rw-r--r-- | vp8/common/postproc.c | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/vp8/common/mfqe.c b/vp8/common/mfqe.c index 3fe5bca3d..3dff1505b 100644 --- a/vp8/common/mfqe.c +++ b/vp8/common/mfqe.c @@ -185,8 +185,8 @@ static void multiframe_quality_enhance_block actrisk = (actd > act * 5); - /* thr = qdiff/8 + log2(act) + log4(qprev) */ - thr = (qdiff >> 3); + /* thr = qdiff/16 + log2(act) + log4(qprev) */ + thr = (qdiff >> 4); while (actd >>= 1) thr++; while (qprev >>= 2) thr++; diff --git a/vp8/common/postproc.c b/vp8/common/postproc.c index a7509ff4e..444898784 100644 --- a/vp8/common/postproc.c +++ b/vp8/common/postproc.c @@ -742,7 +742,8 @@ int vp8_post_proc_frame(VP8_COMMON *oci, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t if ((flags & VP8D_MFQE) && oci->postproc_state.last_frame_valid && oci->current_video_frame >= 2 && - oci->base_qindex - oci->postproc_state.last_base_qindex >= 10) + oci->postproc_state.last_base_qindex < 60 && + oci->base_qindex - oci->postproc_state.last_base_qindex >= 20) { vp8_multiframe_quality_enhance(oci); if (((flags & VP8D_DEBLOCK) || (flags & VP8D_DEMACROBLOCK)) && |