Commit aa8fe0d2 authored by Adrian Grange's avatar Adrian Grange

Fixed buffer selection for UV in AltRef filtering

Corrected setting of "which_buffer" for U & V cases to match that
used for Y, i.e. to refer to the temporally most recent frame of
those to be filtered.

Change-Id: Idf94b287ef47a05f060da3e61134a0b616adcb6b
parent f1a3b1e0
......@@ -3231,7 +3231,7 @@ static void vp8cx_temp_blur1_c
unsigned char block_size
)
{
int byte = 0; // Buffer offset for the current pixel value being filtered
int byte = 0; // Buffer offset for current pixel being filtered
int frame = 0;
int modifier = 0;
int i, j, k;
......@@ -3264,9 +3264,9 @@ static void vp8cx_temp_blur1_c
for (frame = 0; frame < frame_count; frame++)
{
// get current frame pixel value
int pixel_value = frames[frame][byte]; // int pixel_value = *frameptr;
int pixel_value = frames[frame][byte];
modifier = src_byte; // modifier = s[byte];
modifier = src_byte;
modifier -= pixel_value;
modifier *= modifier;
modifier >>= strength;
......@@ -3283,10 +3283,10 @@ static void vp8cx_temp_blur1_c
}
accumulator += (count >> 1);
accumulator *= fixed_divide[count]; // accumulator *= ppi->fixed_divide[count];
accumulator *= fixed_divide[count];
accumulator >>= 16;
dst[byte] = accumulator; // d[byte] = accumulator;
dst[byte] = accumulator;
// move to next pixel
byte++;
......@@ -3392,7 +3392,8 @@ static void vp8cx_temp_filter_c
{
if ((frames_to_blur_backward + frames_to_blur_forward) >= max_frames)
{
frames_to_blur_backward = max_frames - frames_to_blur_forward - 1;
frames_to_blur_backward
= max_frames - frames_to_blur_forward - 1;
}
}
else
......@@ -3449,7 +3450,7 @@ static void vp8cx_temp_filter_c
for (frame = 0; frame < frames_to_blur; frame++)
{
int which_buffer = cpi->last_alt_ref_sei - frame;
int which_buffer = start_frame - frame;
if (which_buffer < 0)
which_buffer += cpi->oxcf.lag_in_frames;
......@@ -3473,7 +3474,7 @@ static void vp8cx_temp_filter_c
for (frame = 0; frame < frames_to_blur; frame++)
{
int which_buffer = cpi->last_alt_ref_sei - frame;
int which_buffer = start_frame - frame;
if (which_buffer < 0)
which_buffer += cpi->oxcf.lag_in_frames;
......
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