commit cfa88a342745ce4faf5b197421a894557291f66d
author Mufaddal Chakera <mufaddal.chakera@ittiam.com> Mon Mar 30 18:34:43 2020 +0530
committer Debargha Mukherjee <debargha@google.com> Wed Apr 01 16:58:36 2020 +0000
tree 4fb531b257058487bf6c0ea95ef0386ef7b0a2e7
parent d25c09124223baf98dc79ad82a92be7bb704112d

Optimize allocation of txb,context_ext buffers

txb and context_ext buffers are not used in the stats generation stage
(firstpass/LAP), however, they are allocated memory for those stages.
Removed unneeded memory allocations to those buffers.

Observed memory footprint reduction in singlepass AOM_Q.

Resolution  Memory
            Single
            Thread
1920x1080   ~6.0%

Memory measuring command:
$ valgrind --tool=massif ./aomenc ...

Change-Id: I0649ebee14ebfde34d689dd8d517a49c6bf5598e

av1/encoder/encoder.c

diff --git a/av1/encoder/encoder.c b/av1/encoder/encoder.c
index 55bf534..22b87ee 100644
--- a/av1/encoder/encoder.c
+++ b/av1/encoder/encoder.c
@@ -1104,9 +1104,11 @@
       ALIGN_POWER_OF_TWO(cm->mi_params.mi_rows, cm->seq_params.mib_size_log2);
   int sb_rows = mi_rows_aligned_to_sb >> cm->seq_params.mib_size_log2;
 
-  av1_alloc_txb_buf(cpi);
+  if (!is_stat_generation_stage(cpi)) {
+    av1_alloc_txb_buf(cpi);
 
-  alloc_context_buffers_ext(cpi);
+    alloc_context_buffers_ext(cpi);
+  }
 
   aom_free(cpi->tile_tok[0][0]);
   aom_free(cpi->tplist[0][0]);
@@ -1213,7 +1215,7 @@
 
   av1_init_macroblockd(cm, xd, NULL);
 
-  alloc_context_buffers_ext(cpi);
+  if (!is_stat_generation_stage(cpi)) alloc_context_buffers_ext(cpi);
   set_tile_info(cpi);
 }