ref: 37c0a1a8d0a360d7a13e27ac5cc6f2c40c046b5a
parent: 2908091342ec11becf9500cb1c77a15c3c8b7c4f
parent: 563b4b20a8e98d31528dce6c63ecba18f0d8e738
author: James Zern <[email protected]>
date: Fri Jul 12 07:10:18 EDT 2013
Merge changes I33e76c42,I24aeac1e,If4192b40 * changes: vp9_dx_iface: s/vp8/vp9/ where possible vp[89]_dx_iface: delete unused function vp[89]_dx_iface: factorize vp8_mmap_*()
--- a/vp8/vp8_dx_iface.c
+++ b/vp8/vp8_dx_iface.c
@@ -41,15 +41,6 @@
static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);
-typedef struct
-{- unsigned int id;
- unsigned long sz;
- unsigned int align;
- unsigned int flags;
- unsigned long(*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t);
-} mem_req_t;
-
static const mem_req_t vp8_mem_req_segs[] =
{ {VP8_SEG_ALG_PRIV, 0, 8, VPX_CODEC_MEM_ZERO, vp8_priv_sz},@@ -93,65 +84,6 @@
return sizeof(vpx_codec_alg_priv_t);
}
-
-static void vp8_mmap_dtor(vpx_codec_mmap_t *mmap)
-{- free(mmap->priv);
-}
-
-static vpx_codec_err_t vp8_mmap_alloc(vpx_codec_mmap_t *mmap)
-{- vpx_codec_err_t res;
- unsigned int align;
-
- align = mmap->align ? mmap->align - 1 : 0;
-
- if (mmap->flags & VPX_CODEC_MEM_ZERO)
- mmap->priv = calloc(1, mmap->sz + align);
- else
- mmap->priv = malloc(mmap->sz + align);
-
- res = (mmap->priv) ? VPX_CODEC_OK : VPX_CODEC_MEM_ERROR;
- mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align);
- mmap->dtor = vp8_mmap_dtor;
- return res;
-}
-
-static vpx_codec_err_t vp8_validate_mmaps(const vp8_stream_info_t *si,
- const vpx_codec_mmap_t *mmaps,
- vpx_codec_flags_t init_flags)
-{- int i;
- vpx_codec_err_t res = VPX_CODEC_OK;
-
- for (i = 0; i < NELEMENTS(vp8_mem_req_segs) - 1; i++)
- {- /* Ensure the segment has been allocated */
- if (!mmaps[i].base)
- {- res = VPX_CODEC_MEM_ERROR;
- break;
- }
-
- /* Verify variable size segment is big enough for the current si. */
- if (vp8_mem_req_segs[i].calc_sz)
- {- vpx_codec_dec_cfg_t cfg;
-
- cfg.w = si->w;
- cfg.h = si->h;
-
- if (mmaps[i].sz < vp8_mem_req_segs[i].calc_sz(&cfg, init_flags))
- {- res = VPX_CODEC_MEM_ERROR;
- break;
- }
- }
- }
-
- return res;
-}
-
static void vp8_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap)
{int i;
@@ -178,16 +110,6 @@
}
}
-static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, unsigned int id)
-{- int i;
-
- for (i = 0; i < NELEMENTS(ctx->mmaps); i++)
- if (ctx->mmaps[i].id == id)
- return ctx->mmaps[i].base;
-
- return NULL;
-}
static void vp8_finalize_mmaps(vpx_codec_alg_priv_t *ctx)
{/* nothing to clean up */
@@ -214,7 +136,7 @@
mmap.align = vp8_mem_req_segs[0].align;
mmap.flags = vp8_mem_req_segs[0].flags;
- res = vp8_mmap_alloc(&mmap);
+ res = vpx_mmap_alloc(&mmap);
if (res != VPX_CODEC_OK) return res;
vp8_init_ctx(ctx, &mmap);
@@ -488,7 +410,7 @@
ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg,
ctx->base.init_flags);
- res = vp8_mmap_alloc(&ctx->mmaps[i]);
+ res = vpx_mmap_alloc(&ctx->mmaps[i]);
}
if (!res)
@@ -500,7 +422,9 @@
/* Initialize the decoder instance on the first frame*/
if (!res && !ctx->decoder_init)
{- res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags);
+ res = vpx_validate_mmaps(&ctx->si, ctx->mmaps,
+ vp8_mem_req_segs, NELEMENTS(vp8_mem_req_segs),
+ ctx->base.init_flags);
if (!res)
{--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -19,36 +19,29 @@
#include "decoder/vp9_onyxd_int.h"
#include "vp9/vp9_iface_common.h"
-#define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
-typedef vpx_codec_stream_info_t vp8_stream_info_t;
+#define VP9_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
+typedef vpx_codec_stream_info_t vp9_stream_info_t;
/* Structures for handling memory allocations */
typedef enum {- VP8_SEG_ALG_PRIV = 256,
- VP8_SEG_MAX
+ VP9_SEG_ALG_PRIV = 256,
+ VP9_SEG_MAX
} mem_seg_id_t;
#define NELEMENTS(x) ((int)(sizeof(x)/sizeof(x[0])))
-static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);
+static unsigned long priv_sz(const vpx_codec_dec_cfg_t *si,
+ vpx_codec_flags_t flags);
-typedef struct {- unsigned int id;
- unsigned long sz;
- unsigned int align;
- unsigned int flags;
- unsigned long(*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t);
-} mem_req_t;
-
-static const mem_req_t vp8_mem_req_segs[] = {- {VP8_SEG_ALG_PRIV, 0, 8, VPX_CODEC_MEM_ZERO, vp8_priv_sz},- {VP8_SEG_MAX, 0, 0, 0, NULL}+static const mem_req_t vp9_mem_req_segs[] = {+ {VP9_SEG_ALG_PRIV, 0, 8, VPX_CODEC_MEM_ZERO, priv_sz},+ {VP9_SEG_MAX, 0, 0, 0, NULL}};
struct vpx_codec_alg_priv {vpx_codec_priv_t base;
- vpx_codec_mmap_t mmaps[NELEMENTS(vp8_mem_req_segs) - 1];
+ vpx_codec_mmap_t mmaps[NELEMENTS(vp9_mem_req_segs) - 1];
vpx_codec_dec_cfg_t cfg;
- vp8_stream_info_t si;
+ vp9_stream_info_t si;
int defer_alloc;
int decoder_init;
VP9D_PTR pbi;
@@ -67,8 +60,8 @@
int invert_tile_order;
};
-static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si,
- vpx_codec_flags_t flags) {+static unsigned long priv_sz(const vpx_codec_dec_cfg_t *si,
+ vpx_codec_flags_t flags) {/* Although this declaration is constant, we can't use it in the requested
* segments list because we want to define the requested segments list
* before defining the private type (so that the number of memory maps is
@@ -78,61 +71,9 @@
return sizeof(vpx_codec_alg_priv_t);
}
-
-static void vp8_mmap_dtor(vpx_codec_mmap_t *mmap) {- free(mmap->priv);
-}
-
-static vpx_codec_err_t vp8_mmap_alloc(vpx_codec_mmap_t *mmap) {- vpx_codec_err_t res;
- unsigned int align;
-
- align = mmap->align ? mmap->align - 1 : 0;
-
- if (mmap->flags & VPX_CODEC_MEM_ZERO)
- mmap->priv = calloc(1, mmap->sz + align);
- else
- mmap->priv = malloc(mmap->sz + align);
-
- res = (mmap->priv) ? VPX_CODEC_OK : VPX_CODEC_MEM_ERROR;
- mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align);
- mmap->dtor = vp8_mmap_dtor;
- return res;
-}
-
-static vpx_codec_err_t vp8_validate_mmaps(const vp8_stream_info_t *si,
- const vpx_codec_mmap_t *mmaps,
- vpx_codec_flags_t init_flags) {+static void vp9_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap) {int i;
- vpx_codec_err_t res = VPX_CODEC_OK;
- for (i = 0; i < NELEMENTS(vp8_mem_req_segs) - 1; i++) {- /* Ensure the segment has been allocated */
- if (!mmaps[i].base) {- res = VPX_CODEC_MEM_ERROR;
- break;
- }
-
- /* Verify variable size segment is big enough for the current si. */
- if (vp8_mem_req_segs[i].calc_sz) {- vpx_codec_dec_cfg_t cfg;
-
- cfg.w = si->w;
- cfg.h = si->h;
-
- if (mmaps[i].sz < vp8_mem_req_segs[i].calc_sz(&cfg, init_flags)) {- res = VPX_CODEC_MEM_ERROR;
- break;
- }
- }
- }
-
- return res;
-}
-
-static void vp8_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap) {- int i;
-
ctx->priv = mmap->base;
ctx->priv->sz = sizeof(*ctx->priv);
ctx->priv->iface = ctx->iface;
@@ -139,7 +80,7 @@
ctx->priv->alg_priv = mmap->base;
for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++)
- ctx->priv->alg_priv->mmaps[i].id = vp8_mem_req_segs[i].id;
+ ctx->priv->alg_priv->mmaps[i].id = vp9_mem_req_segs[i].id;
ctx->priv->alg_priv->mmaps[0] = *mmap;
ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si);
@@ -152,20 +93,11 @@
}
}
-static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, unsigned int id) {- int i;
-
- for (i = 0; i < NELEMENTS(ctx->mmaps); i++)
- if (ctx->mmaps[i].id == id)
- return ctx->mmaps[i].base;
-
- return NULL;
-}
-static void vp8_finalize_mmaps(vpx_codec_alg_priv_t *ctx) {+static void vp9_finalize_mmaps(vpx_codec_alg_priv_t *ctx) {/* nothing to clean up */
}
-static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
+static vpx_codec_err_t vp9_init(vpx_codec_ctx_t *ctx,
vpx_codec_priv_enc_mr_cfg_t *data) {vpx_codec_err_t res = VPX_CODEC_OK;
@@ -176,15 +108,15 @@
if (!ctx->priv) {vpx_codec_mmap_t mmap;
- mmap.id = vp8_mem_req_segs[0].id;
+ mmap.id = vp9_mem_req_segs[0].id;
mmap.sz = sizeof(vpx_codec_alg_priv_t);
- mmap.align = vp8_mem_req_segs[0].align;
- mmap.flags = vp8_mem_req_segs[0].flags;
+ mmap.align = vp9_mem_req_segs[0].align;
+ mmap.flags = vp9_mem_req_segs[0].flags;
- res = vp8_mmap_alloc(&mmap);
+ res = vpx_mmap_alloc(&mmap);
if (!res) {- vp8_init_ctx(ctx, &mmap);
+ vp9_init_ctx(ctx, &mmap);
ctx->priv->alg_priv->defer_alloc = 1;
/*post processing level initialized to do nothing */
@@ -194,7 +126,7 @@
return res;
}
-static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) {+static vpx_codec_err_t vp9_destroy(vpx_codec_alg_priv_t *ctx) {int i;
vp9_remove_decompressor(ctx->pbi);
@@ -207,7 +139,7 @@
return VPX_CODEC_OK;
}
-static vpx_codec_err_t vp8_peek_si(const uint8_t *data,
+static vpx_codec_err_t vp9_peek_si(const uint8_t *data,
unsigned int data_sz,
vpx_codec_stream_info_t *si) {vpx_codec_err_t res = VPX_CODEC_OK;
@@ -238,13 +170,13 @@
return res;
}
-static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t *ctx,
+static vpx_codec_err_t vp9_get_si(vpx_codec_alg_priv_t *ctx,
vpx_codec_stream_info_t *si) {unsigned int sz;
- if (si->sz >= sizeof(vp8_stream_info_t))
- sz = sizeof(vp8_stream_info_t);
+ if (si->sz >= sizeof(vp9_stream_info_t))
+ sz = sizeof(vp9_stream_info_t);
else
sz = sizeof(vpx_codec_stream_info_t);
@@ -294,20 +226,20 @@
cfg.w = ctx->si.w;
cfg.h = ctx->si.h;
- ctx->mmaps[i].id = vp8_mem_req_segs[i].id;
- ctx->mmaps[i].sz = vp8_mem_req_segs[i].sz;
- ctx->mmaps[i].align = vp8_mem_req_segs[i].align;
- ctx->mmaps[i].flags = vp8_mem_req_segs[i].flags;
+ ctx->mmaps[i].id = vp9_mem_req_segs[i].id;
+ ctx->mmaps[i].sz = vp9_mem_req_segs[i].sz;
+ ctx->mmaps[i].align = vp9_mem_req_segs[i].align;
+ ctx->mmaps[i].flags = vp9_mem_req_segs[i].flags;
if (!ctx->mmaps[i].sz)
- ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg,
+ ctx->mmaps[i].sz = vp9_mem_req_segs[i].calc_sz(&cfg,
ctx->base.init_flags);
- res = vp8_mmap_alloc(&ctx->mmaps[i]);
+ res = vpx_mmap_alloc(&ctx->mmaps[i]);
}
if (!res)
- vp8_finalize_mmaps(ctx);
+ vp9_finalize_mmaps(ctx);
ctx->defer_alloc = 0;
}
@@ -314,7 +246,9 @@
/* Initialize the decoder instance on the first frame*/
if (!res && !ctx->decoder_init) {- res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags);
+ res = vpx_validate_mmaps(&ctx->si, ctx->mmaps,
+ vp9_mem_req_segs, NELEMENTS(vp9_mem_req_segs),
+ ctx->base.init_flags);
if (!res) {VP9D_CONFIG oxcf;
@@ -484,7 +418,7 @@
return res;
}
-static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx,
+static vpx_image_t *vp9_get_frame(vpx_codec_alg_priv_t *ctx,
vpx_codec_iter_t *iter) {vpx_image_t *img = NULL;
@@ -502,11 +436,9 @@
return img;
}
-
-static
-vpx_codec_err_t vp8_xma_get_mmap(const vpx_codec_ctx_t *ctx,
- vpx_codec_mmap_t *mmap,
- vpx_codec_iter_t *iter) {+static vpx_codec_err_t vp9_xma_get_mmap(const vpx_codec_ctx_t *ctx,
+ vpx_codec_mmap_t *mmap,
+ vpx_codec_iter_t *iter) {vpx_codec_err_t res;
const mem_req_t *seg_iter = *iter;
@@ -513,13 +445,13 @@
/* Get address of next segment request */
do {if (!seg_iter)
- seg_iter = vp8_mem_req_segs;
- else if (seg_iter->id != VP8_SEG_MAX)
+ seg_iter = vp9_mem_req_segs;
+ else if (seg_iter->id != VP9_SEG_MAX)
seg_iter++;
*iter = (vpx_codec_iter_t)seg_iter;
- if (seg_iter->id != VP8_SEG_MAX) {+ if (seg_iter->id != VP9_SEG_MAX) {mmap->id = seg_iter->id;
mmap->sz = seg_iter->sz;
mmap->align = seg_iter->align;
@@ -536,15 +468,15 @@
return res;
}
-static vpx_codec_err_t vp8_xma_set_mmap(vpx_codec_ctx_t *ctx,
+static vpx_codec_err_t vp9_xma_set_mmap(vpx_codec_ctx_t *ctx,
const vpx_codec_mmap_t *mmap) {vpx_codec_err_t res = VPX_CODEC_MEM_ERROR;
int i, done;
if (!ctx->priv) {- if (mmap->id == VP8_SEG_ALG_PRIV) {+ if (mmap->id == VP9_SEG_ALG_PRIV) { if (!ctx->priv) {- vp8_init_ctx(ctx, mmap);
+ vp9_init_ctx(ctx, mmap);
res = VPX_CODEC_OK;
}
}
@@ -565,7 +497,7 @@
}
if (done && !res) {- vp8_finalize_mmaps(ctx->priv->alg_priv);
+ vp9_finalize_mmaps(ctx->priv->alg_priv);
res = ctx->iface->init(ctx, NULL);
}
@@ -572,11 +504,10 @@
return res;
}
+static vpx_codec_err_t set_reference(vpx_codec_alg_priv_t *ctx,
+ int ctr_id,
+ va_list args) {-static vpx_codec_err_t vp9_set_reference(vpx_codec_alg_priv_t *ctx,
- int ctr_id,
- va_list args) {-
vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
if (data) {@@ -592,9 +523,9 @@
}
-static vpx_codec_err_t vp9_copy_reference(vpx_codec_alg_priv_t *ctx,
- int ctr_id,
- va_list args) {+static vpx_codec_err_t copy_reference(vpx_codec_alg_priv_t *ctx,
+ int ctr_id,
+ va_list args) {vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
@@ -627,9 +558,9 @@
}
}
-static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
- int ctr_id,
- va_list args) {+static vpx_codec_err_t set_postproc(vpx_codec_alg_priv_t *ctx,
+ int ctr_id,
+ va_list args) {#if CONFIG_POSTPROC
vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
@@ -645,9 +576,9 @@
#endif
}
-static vpx_codec_err_t vp8_set_dbg_options(vpx_codec_alg_priv_t *ctx,
- int ctrl_id,
- va_list args) {+static vpx_codec_err_t set_dbg_options(vpx_codec_alg_priv_t *ctx,
+ int ctrl_id,
+ va_list args) {#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
int data = va_arg(args, int);
@@ -666,9 +597,9 @@
#endif
}
-static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
- int ctrl_id,
- va_list args) {+static vpx_codec_err_t get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
+ int ctrl_id,
+ va_list args) {int *update_info = va_arg(args, int *);
VP9D_COMP *pbi = (VP9D_COMP *)ctx->pbi;
@@ -681,9 +612,9 @@
}
-static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
- int ctrl_id,
- va_list args) {+static vpx_codec_err_t get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
+ int ctrl_id,
+ va_list args) {int *corrupted = va_arg(args, int *);
@@ -705,15 +636,15 @@
}
static vpx_codec_ctrl_fn_map_t ctf_maps[] = {- {VP8_SET_REFERENCE, vp9_set_reference},- {VP8_COPY_REFERENCE, vp9_copy_reference},- {VP8_SET_POSTPROC, vp8_set_postproc},- {VP8_SET_DBG_COLOR_REF_FRAME, vp8_set_dbg_options},- {VP8_SET_DBG_COLOR_MB_MODES, vp8_set_dbg_options},- {VP8_SET_DBG_COLOR_B_MODES, vp8_set_dbg_options},- {VP8_SET_DBG_DISPLAY_MV, vp8_set_dbg_options},- {VP8D_GET_LAST_REF_UPDATES, vp8_get_last_ref_updates},- {VP8D_GET_FRAME_CORRUPTED, vp8_get_frame_corrupted},+ {VP8_SET_REFERENCE, set_reference},+ {VP8_COPY_REFERENCE, copy_reference},+ {VP8_SET_POSTPROC, set_postproc},+ {VP8_SET_DBG_COLOR_REF_FRAME, set_dbg_options},+ {VP8_SET_DBG_COLOR_MB_MODES, set_dbg_options},+ {VP8_SET_DBG_COLOR_B_MODES, set_dbg_options},+ {VP8_SET_DBG_DISPLAY_MV, set_dbg_options},+ {VP8D_GET_LAST_REF_UPDATES, get_last_ref_updates},+ {VP8D_GET_FRAME_CORRUPTED, get_frame_corrupted}, {VP9_GET_REFERENCE, get_reference}, {VP9_INVERT_TILE_DECODE_ORDER, set_invert_tile_order}, { -1, NULL},@@ -726,18 +657,18 @@
CODEC_INTERFACE(vpx_codec_vp9_dx) = {"WebM Project VP9 Decoder" VERSION_STRING,
VPX_CODEC_INTERNAL_ABI_VERSION,
- VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC,
+ VPX_CODEC_CAP_DECODER | VP9_CAP_POSTPROC,
/* vpx_codec_caps_t caps; */
- vp8_init, /* vpx_codec_init_fn_t init; */
- vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */
+ vp9_init, /* vpx_codec_init_fn_t init; */
+ vp9_destroy, /* vpx_codec_destroy_fn_t destroy; */
ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */
- vp8_xma_get_mmap, /* vpx_codec_get_mmap_fn_t get_mmap; */
- vp8_xma_set_mmap, /* vpx_codec_set_mmap_fn_t set_mmap; */
+ vp9_xma_get_mmap, /* vpx_codec_get_mmap_fn_t get_mmap; */
+ vp9_xma_set_mmap, /* vpx_codec_set_mmap_fn_t set_mmap; */
{- vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */
- vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */
+ vp9_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */
+ vp9_get_si, /* vpx_codec_get_si_fn_t get_si; */
vp9_decode, /* vpx_codec_decode_fn_t decode; */
- vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */
+ vp9_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */
},
{/* encoder functions */
--- a/vpx/internal/vpx_codec_internal.h
+++ b/vpx/internal/vpx_codec_internal.h
@@ -474,4 +474,30 @@
if (info->setjmp)
longjmp(info->jmp, info->error_code);
}
+
+//------------------------------------------------------------------------------
+// mmap interface
+
+typedef struct {+ unsigned int id;
+ unsigned long sz;
+ unsigned int align;
+ unsigned int flags;
+ unsigned long (*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t);
+} mem_req_t;
+
+// Allocates mmap.priv and sets mmap.base based on mmap.sz/align/flags
+// requirements.
+// Returns #VPX_CODEC_OK on success, #VPX_CODEC_MEM_ERROR otherwise.
+vpx_codec_err_t vpx_mmap_alloc(vpx_codec_mmap_t *mmap);
+
+// Frees mmap.base allocated by a call to vpx_mmap_alloc().
+void vpx_mmap_dtor(vpx_codec_mmap_t *mmap);
+
+// Checks each mmap has the size requirement specificied by mem_reqs.
+// Returns #VPX_CODEC_OK on success, #VPX_CODEC_MEM_ERROR otherwise.
+vpx_codec_err_t vpx_validate_mmaps(const vpx_codec_stream_info_t *si,
+ const vpx_codec_mmap_t *mmaps,
+ const mem_req_t *mem_reqs, int nreqs,
+ vpx_codec_flags_t init_flags);
#endif
--- a/vpx/src/vpx_codec.c
+++ b/vpx/src/vpx_codec.c
@@ -14,6 +14,7 @@
*
*/
#include <stdarg.h>
+#include <stdlib.h>
#include "vpx/vpx_integer.h"
#include "vpx/internal/vpx_codec_internal.h"
#include "vpx_version.h"
@@ -132,4 +133,52 @@
}
return SAVE_STATUS(ctx, res);
+}
+
+//------------------------------------------------------------------------------
+// mmap interface
+
+vpx_codec_err_t vpx_mmap_alloc(vpx_codec_mmap_t *mmap) {+ unsigned int align = mmap->align ? mmap->align - 1 : 0;
+
+ if (mmap->flags & VPX_CODEC_MEM_ZERO)
+ mmap->priv = calloc(1, mmap->sz + align);
+ else
+ mmap->priv = malloc(mmap->sz + align);
+
+ if (mmap->priv == NULL) return VPX_CODEC_MEM_ERROR;
+ mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align);
+ mmap->dtor = vpx_mmap_dtor;
+ return VPX_CODEC_OK;
+}
+
+void vpx_mmap_dtor(vpx_codec_mmap_t *mmap) {+ free(mmap->priv);
+}
+
+vpx_codec_err_t vpx_validate_mmaps(const vpx_codec_stream_info_t *si,
+ const vpx_codec_mmap_t *mmaps,
+ const mem_req_t *mem_reqs, int nreqs,
+ vpx_codec_flags_t init_flags) {+ int i;
+
+ for (i = 0; i < nreqs - 1; ++i) {+ /* Ensure the segment has been allocated */
+ if (mmaps[i].base == NULL) {+ return VPX_CODEC_MEM_ERROR;
+ }
+
+ /* Verify variable size segment is big enough for the current si. */
+ if (mem_reqs[i].calc_sz != NULL) {+ vpx_codec_dec_cfg_t cfg;
+
+ cfg.w = si->w;
+ cfg.h = si->h;
+
+ if (mmaps[i].sz < mem_reqs[i].calc_sz(&cfg, init_flags)) {+ return VPX_CODEC_MEM_ERROR;
+ }
+ }
+ }
+ return VPX_CODEC_OK;
}