generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

MODE_INFO size reduction

Browse Source 
Declared the bmi in MODE_INFO as a union instead of B_MODE_INFO.
This reduced the memory footprint by 518,400 bytes for 1080
resolutions.  The decoder performance improved by ~4% for the
clip used and the encoder showed very small improvements. (0.5%)
This reduction was first mentioned to me by John K. and in a
later discussion by Yaowu.
This is WIP.

Change-Id: I8e175fdbc46d28c35277302a04bee4540efc8d29
This commit is contained in:
Scott LaVarnway
2011-05-24 13:24:52 -04:00
parent 6d82d2d22e
commit e11f21af9a
13 changed files with 170 additions and 130 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
vp8/decoder/threading.c
View File

@@ -187,7 +187,6 @@ static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, int mb_row, int m
{
BLOCKD *b = &xd->block[i];
vp8mt_predict_intra4x4(pbi, xd, b->bmi.mode, b->predictor, mb_row, mb_col, i);
if (xd->eobs[i] > 1)
{
DEQUANT_INVOKE(&pbi->dequant, idct_add)
@@ -288,14 +287,7 @@ static THREAD_FUNCTION thread_decoding_proc(void *p_data)
}
}
if (xd->mode_info_context->mbmi.mode == SPLITMV || xd->mode_info_context->mbmi.mode == B_PRED)
{
for (i = 0; i < 16; i++)
{
BLOCKD *d = &xd->block[i];
vpx_memcpy(&d->bmi, &xd->mode_info_context->bmi[i], sizeof(B_MODE_INFO));
}
}
update_blockd_bmi(xd);
/* Distance of Mb to the various image edges.
* These are specified to 8th pel as they are always compared to values that are in 1/8th pel units
@@ -776,14 +768,7 @@ void vp8mt_decode_mb_rows( VP8D_COMP *pbi, MACROBLOCKD *xd)
}
}
if (xd->mode_info_context->mbmi.mode == SPLITMV || xd->mode_info_context->mbmi.mode == B_PRED)
{
for (i = 0; i < 16; i++)
{
BLOCKD *d = &xd->block[i];
vpx_memcpy(&d->bmi, &xd->mode_info_context->bmi[i], sizeof(B_MODE_INFO));
}
}
update_blockd_bmi(xd);
/* Distance of Mb to the various image edges.
* These are specified to 8th pel as they are always compared to values that are in 1/8th pel units