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Moves error concealment allocations from common parts to decoder

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The backup MODE_INFO buffer used in the error concealment was
allocated in the codec common parts allocation even though this is a
decoder only resource. Moved the allocation to the decoder side.
No need to update_mode_info_border as mode_info buffers are zero
allocated.

This fixes also a potential memory leak as the EC overlaps buffer was not
properly released before reallocation after a frame size change.

Change-Id: I12803d3e012308d95669069980b1c95973fb775f
This commit is contained in:
Attila Nagy 2012-04-24 15:33:44 +03:00
parent 0c483d6b68
commit 24e7b1b90d
5 changed files with 34 additions and 45 deletions
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48
vp8/common/alloccommon.c
View File

@ -17,23 +17,6 @@
#include "entropymode.h"
#include "systemdependent.h"
extern void vp8_init_scan_order_mask();
static void update_mode_info_border(MODE_INFO *mi, int rows, int cols)
{
int i;
vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));
for (i = 0; i < rows; i++)
{
/* TODO(holmer): Bug? This updates the last element of each row
* rather than the border element!
*/
vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO));
}
}
void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
{
int i;
@ -49,12 +32,13 @@ void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
vpx_free(oci->above_context);
vpx_free(oci->mip);
#if CONFIG_ERROR_CONCEALMENT
vpx_free(oci->prev_mip);
oci->prev_mip = NULL;
#endif
oci->above_context = 0;
oci->mip = 0;
oci->prev_mip = 0;
oci->above_context = NULL;
oci->mip = NULL;
}
int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
@ -124,21 +108,8 @@ int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
oci->mi = oci->mip + oci->mode_info_stride + 1;
/* allocate memory for last frame MODE_INFO array */
#if CONFIG_ERROR_CONCEALMENT
oci->prev_mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
if (!oci->prev_mip)
{
vp8_de_alloc_frame_buffers(oci);
return 1;
}
oci->prev_mi = oci->prev_mip + oci->mode_info_stride + 1;
#else
oci->prev_mip = NULL;
oci->prev_mi = NULL;
#endif
/* Allocation of previous mode info will be done in vp8_decode_frame()
* as it is a decoder only data */
oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);
@ -148,11 +119,6 @@ int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
return 1;
}
update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols);
#if CONFIG_ERROR_CONCEALMENT
update_mode_info_border(oci->prev_mi, oci->mb_rows, oci->mb_cols);
#endif
return 0;
}
void vp8_setup_version(VP8_COMMON *cm)

3
vp8/common/onyxc_int.h
View File

@ -124,9 +124,10 @@ typedef struct VP8Common
MODE_INFO *mip; /* Base of allocated array */
MODE_INFO *mi; /* Corresponds to upper left visible macroblock */
#if CONFIG_ERROR_CONCEALMENT
MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */
MODE_INFO *prev_mi; /* 'mi' from last frame (points into prev_mip) */
#endif
LOOPFILTERTYPE filter_type;

22
vp8/decoder/decodframe.c
View File

@ -821,20 +821,40 @@ int vp8_decode_frame(VP8D_COMP *pbi)
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate frame buffers");
/* allocate memory for last frame MODE_INFO array */
#if CONFIG_ERROR_CONCEALMENT
pbi->overlaps = NULL;
if (pbi->ec_enabled)
{
/* old prev_mip was released by vp8_de_alloc_frame_buffers()
* called in vp8_alloc_frame_buffers() */
pc->prev_mip = vpx_calloc(
(pc->mb_cols + 1) * (pc->mb_rows + 1),
sizeof(MODE_INFO));
if (!pc->prev_mip)
{
vp8_de_alloc_frame_buffers(pc);
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate"
"last frame MODE_INFO array");
}
pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1;
if (vp8_alloc_overlap_lists(pbi))
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate overlap lists "
"for error concealment");
}
#endif
#if CONFIG_MULTITHREAD
if (pbi->b_multithreaded_rd)
vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
#endif
frame_size_change = 1;
}

5
vp8/decoder/error_concealment.c
View File

@ -51,12 +51,13 @@ int vp8_alloc_overlap_lists(VP8D_COMP *pbi)
vpx_free(pbi->overlaps);
pbi->overlaps = NULL;
}
pbi->overlaps = vpx_calloc(pbi->common.mb_rows * pbi->common.mb_cols,
sizeof(MB_OVERLAP));
if (pbi->overlaps == NULL)
return -1;
vpx_memset(pbi->overlaps, 0,
sizeof(MB_OVERLAP) * pbi->common.mb_rows * pbi->common.mb_cols);
return 0;
}

1
vp8/decoder/onyxd_if.c
View File

@ -80,6 +80,7 @@ struct VP8D_COMP * vp8dx_create_decompressor(VP8D_CONFIG *oxcf)
#if CONFIG_ERROR_CONCEALMENT
pbi->ec_enabled = oxcf->error_concealment;
pbi->overlaps = NULL;
#else
pbi->ec_enabled = 0;
#endif