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| author | Vitor Sessak <vitor1001@gmail.com> | 2008-07-23 07:54:31 +0400 |
|---|---|---|
| committer | Vitor Sessak <vitor1001@gmail.com> | 2008-07-23 07:54:31 +0400 |
| commit | 5916af1954f0c25f06e87d2076aaf536c684ed98 (patch) | |
| tree | 40507a8da25e7fad96da22b0ac2f9dd6092c4cca /libavcodec/elbg.c | |
| parent | 26b86e47c010029d7ca7c7264f710c240d85339a (diff) | |
The codebook generator algorithm involves picking three
different codebook centroids ("high utility", "low
utility" and "closest to the low utility one"). This
change avoid the corner case of choosing two times the
same centroid.
Originally committed as revision 14340 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/elbg.c')
| -rw-r--r-- | libavcodec/elbg.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/elbg.c b/libavcodec/elbg.c index 130f5f634c..9f8ed221a4 100644 --- a/libavcodec/elbg.c +++ b/libavcodec/elbg.c @@ -299,8 +299,10 @@ static void do_shiftings(elbg_data *elbg) if (elbg->utility_inc[elbg->numCB-1] == 0) return; - idx[1] = get_high_utility_cell(elbg); idx[2] = get_closest_codebook(elbg, idx[0]); + do { + idx[1] = get_high_utility_cell(elbg); + } while (idx[1] == idx[0] || idx[1] == idx[2]); try_shift_candidate(elbg, idx); } |