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cpplint issues in vp9_picklpf.c

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Change-Id: I62e631ca95fefbb1a993479a5e3926dc81359fe7
This commit is contained in:
Jim Bankoski 2013-10-04 17:08:41 -07:00
parent c6960b6086
commit cac3e1588e
1 changed files with 15 additions and 28 deletions
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43
vp9/encoder/vp9_picklpf.c
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@ -54,7 +54,8 @@ static int calc_partial_ssl_err(YV12_BUFFER_CONFIG *source,
src += srcoffset;
dst += dstoffset;
// Loop through the Y plane raw and reconstruction data summing (square differences)
// Loop through the raw Y plane and reconstruction data summing the square
// differences.
for (i = 0; i < linestocopy; i += 16) {
for (j = 0; j < source->y_width; j += 16) {
unsigned int sse;
@ -72,20 +73,6 @@ static int calc_partial_ssl_err(YV12_BUFFER_CONFIG *source,
// Enforce a minimum filter level based upon baseline Q
static int get_min_filter_level(VP9_COMP *cpi, int base_qindex) {
int min_filter_level;
/*int q = (int) vp9_convert_qindex_to_q(base_qindex);
if (cpi->source_alt_ref_active && cpi->common.refresh_golden_frame && !cpi->common.refresh_alt_ref_frame)
min_filter_level = 0;
else
{
if (q <= 10)
min_filter_level = 0;
else if (q <= 64)
min_filter_level = 1;
else
min_filter_level = (q >> 6);
}
*/
min_filter_level = 0;
return min_filter_level;
@ -93,11 +80,7 @@ static int get_min_filter_level(VP9_COMP *cpi, int base_qindex) {
// Enforce a maximum filter level based upon baseline Q
static int get_max_filter_level(VP9_COMP *cpi, int base_qindex) {
// PGW August 2006: Highest filter values almost always a bad idea
// jbb chg: 20100118 - not so any more with this overquant stuff allow high values
// with lots of intra coming in.
int max_filter_level = MAX_LOOP_FILTER;// * 3 / 4;
int max_filter_level = MAX_LOOP_FILTER;
(void)base_qindex;
if (cpi->twopass.section_intra_rating > 8)
@ -128,7 +111,7 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
int filt_best;
int filt_direction = 0;
int Bias = 0; // Bias against raising loop filter and in favour of lowering it
int Bias = 0; // Bias against raising loop filter in favor of lowering it.
// Make a copy of the unfiltered / processed recon buffer
vpx_yv12_copy_y(cm->frame_to_show, &cpi->last_frame_uf);
@ -136,7 +119,8 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
lf->sharpness_level = cm->frame_type == KEY_FRAME ? 0
: cpi->oxcf.Sharpness;
// Start the search at the previous frame filter level unless it is now out of range.
// Start the search at the previous frame filter level unless it is now out of
// range.
filt_mid = clamp(lf->filter_level, min_filter_level, max_filter_level);
// Define the initial step size
@ -153,9 +137,8 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
vpx_yv12_copy_y(&cpi->last_frame_uf, cm->frame_to_show);
while (filter_step > 0) {
Bias = (best_err >> (15 - (filt_mid / 8))) * filter_step; // PGW change 12/12/06 for small images
Bias = (best_err >> (15 - (filt_mid / 8))) * filter_step;
// jbb chg: 20100118 - in sections with lots of new material coming in don't bias as much to a low filter value
if (cpi->twopass.section_intra_rating < 20)
Bias = Bias * cpi->twopass.section_intra_rating / 20;
@ -163,8 +146,12 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
if (cpi->common.tx_mode != ONLY_4X4)
Bias >>= 1;
filt_high = ((filt_mid + filter_step) > max_filter_level) ? max_filter_level : (filt_mid + filter_step);
filt_low = ((filt_mid - filter_step) < min_filter_level) ? min_filter_level : (filt_mid - filter_step);
filt_high = ((filt_mid + filter_step) > max_filter_level)
? max_filter_level
: (filt_mid + filter_step);
filt_low = ((filt_mid - filter_step) < min_filter_level)
? min_filter_level
: (filt_mid - filter_step);
if ((filt_direction <= 0) && (filt_low != filt_mid)) {
// Get Low filter error score
@ -176,7 +163,8 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
// Re-instate the unfiltered frame
vpx_yv12_copy_y(&cpi->last_frame_uf, cm->frame_to_show);
// If value is close to the best so far then bias towards a lower loop filter value.
// If value is close to the best so far then bias towards a lower loop
// filter value.
if ((filt_err - Bias) < best_err) {
// Was it actually better than the previous best?
if (filt_err < best_err)
@ -215,4 +203,3 @@ void vp9_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi, int partial) {
lf->filter_level = filt_best;
}