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| author | Paul Wilkins <paulwilkins@google.com> | 2011-12-16 10:23:01 +0000 |
|---|---|---|
| committer | Paul Wilkins <paulwilkins@google.com> | 2011-12-19 09:36:19 +0000 |
| commit | df4e79f7f7b1c5f62fdb80575bab6ce1b2be7928 (patch) | |
| tree | 9be1bbb96562dfb3756738d9c469a7a0155f6073 /vp8/encoder/onyx_if.c | |
| parent | ec670bc5584674ebd37801cf5d1e0ae3540b01b7 (diff) | |
| download | libvpx-df4e79f7f7b1c5f62fdb80575bab6ce1b2be7928.tar libvpx-df4e79f7f7b1c5f62fdb80575bab6ce1b2be7928.tar.gz libvpx-df4e79f7f7b1c5f62fdb80575bab6ce1b2be7928.tar.bz2 libvpx-df4e79f7f7b1c5f62fdb80575bab6ce1b2be7928.zip | |
Extend to 256 Q steps.
This commit extends the number of Q steps to 256 from 128.
The q_trans[] array has been altered to distribute available Q index values
(using the current 64 steps available as input parameters) evenly across the
available range. This is coupled with the fact that each Q step where possible
now equates to a fixed % change in the quantizer. This may want refinement
later especially in terms of the granularity at the high quality end but is a
reasonable starting point.
Change-Id: I2aaa6874fa10ce05c958dd182947ce39f6f1eecb
Diffstat (limited to 'vp8/encoder/onyx_if.c')
| -rw-r--r-- | vp8/encoder/onyx_if.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c index 9a5ce38a6..fe8f1ab78 100644 --- a/vp8/encoder/onyx_if.c +++ b/vp8/encoder/onyx_if.c @@ -1857,7 +1857,7 @@ void vp8_alloc_compressor_data(VP8_COMP *cpi) // // Table that converts 0-63 Q range values passed in outside to the Qindex // range used internally. -/*#if CONFIG_EXTEND_QRANGE +#if CONFIG_EXTEND_QRANGE static const int q_trans[] = { 0, 4, 8, 12, 16, 20, 24, 28, @@ -1869,7 +1869,7 @@ static const int q_trans[] = 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 249, 255, }; -#else*/ +#else static const int q_trans[] = { 0, 1, 2, 3, 4, 5, 7, 8, @@ -1881,7 +1881,7 @@ static const int q_trans[] = 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, }; -//#endif +#endif int vp8_reverse_trans(int x) { |