ref: 8c48c943e7c082b4330061e74ce85547253de301
dir: /vp8/vp8_dx_iface.c/
/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include <stdlib.h> #include <string.h> #include "vpx/vpx_decoder.h" #include "vpx/vp8dx.h" #include "vpx/internal/vpx_codec_internal.h" #include "vpx_version.h" #include "common/onyxd.h" #include "decoder/onyxd_int.h" #define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0) typedef vpx_codec_stream_info_t vp8_stream_info_t; /* Structures for handling memory allocations */ typedef enum { VP8_SEG_ALG_PRIV = 256, VP8_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); 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} }; struct vpx_codec_alg_priv { vpx_codec_priv_t base; vpx_codec_mmap_t mmaps[NELEMENTS(vp8_mem_req_segs)-1]; vpx_codec_dec_cfg_t cfg; vp8_stream_info_t si; int defer_alloc; int decoder_init; VP8D_PTR pbi; int postproc_cfg_set; vp8_postproc_cfg_t postproc_cfg; #if CONFIG_POSTPROC_VISUALIZER unsigned int dbg_postproc_flag; int dbg_color_ref_frame_flag; int dbg_color_mb_modes_flag; int dbg_color_b_modes_flag; int dbg_display_mv_flag; #endif vpx_image_t img; int img_setup; int img_avail; }; static unsigned long vp8_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 * known) */ (void)si; 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; ctx->priv = mmap->base; ctx->priv->sz = sizeof(*ctx->priv); ctx->priv->iface = ctx->iface; 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[0] = *mmap; ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si); ctx->priv->init_flags = ctx->init_flags; if (ctx->config.dec) { /* Update the reference to the config structure to an internal copy. */ ctx->priv->alg_priv->cfg = *ctx->config.dec; ctx->config.dec = &ctx->priv->alg_priv->cfg; } } static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, unsigned int id) { int i; for (i = 0; i < NELEMENTS(vp8_mem_req_segs); 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) { /* ctx->pbi = mmap_lkup(ctx, VP6_SEG_PB_INSTANCE); ctx->pbi->mbi.block_dx_info[0].idct_output_ptr = mmap_lkup(ctx, VP6_SEG_IDCT_BUFFER); ctx->pbi->loop_filtered_block = mmap_lkup(ctx, VP6_SEG_LF_BLOCK); ctx->pbi->huff = mmap_lkup(ctx, VP6_SEG_HUFF); ctx->pbi->mbi.coeffs_base_ptr = mmap_lkup(ctx, VP6_SEG_COEFFS); ctx->pbi->fc.above_y = mmap_lkup(ctx, VP6_SEG_ABOVEY); ctx->pbi->fc.above_u = mmap_lkup(ctx, VP6_SEG_ABOVEU); ctx->pbi->fc.above_v = mmap_lkup(ctx, VP6_SEG_ABOVEV); ctx->pbi->prediction_mode = mmap_lkup(ctx, VP6_SEG_PRED_MODES); ctx->pbi->mbmotion_vector = mmap_lkup(ctx, VP6_SEG_MV_FIELD); ctx->pbi->fb_storage_ptr[0] = mmap_lkup(ctx, VP6_SEG_IMG0_STRG); ctx->pbi->fb_storage_ptr[1] = mmap_lkup(ctx, VP6_SEG_IMG1_STRG); ctx->pbi->fb_storage_ptr[2] = mmap_lkup(ctx, VP6_SEG_IMG2_STRG); #if CONFIG_POSTPROC ctx->pbi->postproc.deblock.fragment_variances = mmap_lkup(ctx, VP6_SEG_DEBLOCKER); ctx->pbi->fb_storage_ptr[3] = mmap_lkup(ctx, VP6_SEG_PP_IMG_STRG); #endif */ } static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx) { vpx_codec_err_t res = VPX_CODEC_OK; /* This function only allocates space for the vpx_codec_alg_priv_t * structure. More memory may be required at the time the stream * information becomes known. */ if (!ctx->priv) { vpx_codec_mmap_t mmap; mmap.id = vp8_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; res = vp8_mmap_alloc(&mmap); if (!res) { vp8_init_ctx(ctx, &mmap); ctx->priv->alg_priv->defer_alloc = 1; /*post processing level initialized to do nothing */ } } return res; } static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) { int i; vp8dx_remove_decompressor(ctx->pbi); for (i = NELEMENTS(ctx->mmaps) - 1; i >= 0; i--) { if (ctx->mmaps[i].dtor) ctx->mmaps[i].dtor(&ctx->mmaps[i]); } return VPX_CODEC_OK; } static vpx_codec_err_t vp8_peek_si(const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si) { vpx_codec_err_t res = VPX_CODEC_OK; if(data + data_sz <= data) res = VPX_CODEC_INVALID_PARAM; else { /* Parse uncompresssed part of key frame header. * 3 bytes:- including version, frame type and an offset * 3 bytes:- sync code (0x9d, 0x01, 0x2a) * 4 bytes:- including image width and height in the lowest 14 bits * of each 2-byte value. */ si->is_kf = 0; if (data_sz >= 10 && !(data[0] & 0x01)) /* I-Frame */ { const uint8_t *c = data + 3; si->is_kf = 1; /* vet via sync code */ if (c[0] != 0x9d || c[1] != 0x01 || c[2] != 0x2a) res = VPX_CODEC_UNSUP_BITSTREAM; si->w = (c[3] | (c[4] << 8)) & 0x3fff; si->h = (c[5] | (c[6] << 8)) & 0x3fff; /*printf("w=%d, h=%d\n", si->w, si->h);*/ if (!(si->h | si->w)) res = VPX_CODEC_UNSUP_BITSTREAM; } else res = VPX_CODEC_UNSUP_BITSTREAM; } return res; } static vpx_codec_err_t vp8_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); else sz = sizeof(vpx_codec_stream_info_t); memcpy(si, &ctx->si, sz); si->sz = sz; return VPX_CODEC_OK; } static vpx_codec_err_t update_error_state(vpx_codec_alg_priv_t *ctx, const struct vpx_internal_error_info *error) { vpx_codec_err_t res; if ((res = error->error_code)) ctx->base.err_detail = error->has_detail ? error->detail : NULL; return res; } static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline) { vpx_codec_err_t res = VPX_CODEC_OK; ctx->img_avail = 0; /* Determine the stream parameters. Note that we rely on peek_si to * validate that we have a buffer that does not wrap around the top * of the heap. */ if (!ctx->si.h) res = ctx->base.iface->dec.peek_si(data, data_sz, &ctx->si); /* Perform deferred allocations, if required */ if (!res && ctx->defer_alloc) { int i; for (i = 1; !res && i < NELEMENTS(ctx->mmaps); i++) { vpx_codec_dec_cfg_t cfg; 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; if (!ctx->mmaps[i].sz) ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg, ctx->base.init_flags); res = vp8_mmap_alloc(&ctx->mmaps[i]); } if (!res) vp8_finalize_mmaps(ctx); ctx->defer_alloc = 0; } /* 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); if (!res) { VP8D_CONFIG oxcf; VP8D_PTR optr; vp8dx_initialize(); oxcf.Width = ctx->si.w; oxcf.Height = ctx->si.h; oxcf.Version = 9; oxcf.postprocess = 0; oxcf.max_threads = ctx->cfg.threads; optr = vp8dx_create_decompressor(&oxcf); /* If postprocessing was enabled by the application and a * configuration has not been provided, default it. */ if (!ctx->postproc_cfg_set && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) { ctx->postproc_cfg.post_proc_flag = VP8_DEBLOCK | VP8_DEMACROBLOCK; ctx->postproc_cfg.deblocking_level = 4; ctx->postproc_cfg.noise_level = 0; } if (!optr) res = VPX_CODEC_ERROR; else ctx->pbi = optr; } ctx->decoder_init = 1; } if (!res && ctx->pbi) { YV12_BUFFER_CONFIG sd; INT64 time_stamp = 0, time_end_stamp = 0; vp8_ppflags_t flags = {0}; if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) { flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag #if CONFIG_POSTPROC_VISUALIZER | ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0) | ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0) #endif ; flags.deblocking_level = ctx->postproc_cfg.deblocking_level; flags.noise_level = ctx->postproc_cfg.noise_level; #if CONFIG_POSTPROC_VISUALIZER flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag; flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag; flags.display_b_modes_flag = ctx->dbg_color_b_modes_flag; flags.display_mv_flag = ctx->dbg_display_mv_flag; #endif } if (vp8dx_receive_compressed_data(ctx->pbi, data_sz, data, deadline)) { VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi; res = update_error_state(ctx, &pbi->common.error); } if (!res && 0 == vp8dx_get_raw_frame(ctx->pbi, &sd, &time_stamp, &time_end_stamp, &flags)) { /* Align width/height */ unsigned int a_w = (sd.y_width + 15) & ~15; unsigned int a_h = (sd.y_height + 15) & ~15; vpx_img_wrap(&ctx->img, VPX_IMG_FMT_I420, a_w + 2 * VP8BORDERINPIXELS, a_h + 2 * VP8BORDERINPIXELS, 1, sd.buffer_alloc); vpx_img_set_rect(&ctx->img, VP8BORDERINPIXELS, VP8BORDERINPIXELS, sd.y_width, sd.y_height); ctx->img.user_priv = user_priv; ctx->img_avail = 1; } } return res; } static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx, vpx_codec_iter_t *iter) { vpx_image_t *img = NULL; if (ctx->img_avail) { /* iter acts as a flip flop, so an image is only returned on the first * call to get_frame. */ if (!(*iter)) { img = &ctx->img; *iter = img; } } 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) { vpx_codec_err_t res; const mem_req_t *seg_iter = *iter; /* 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++; *iter = (vpx_codec_iter_t)seg_iter; if (seg_iter->id != VP8_SEG_MAX) { mmap->id = seg_iter->id; mmap->sz = seg_iter->sz; mmap->align = seg_iter->align; mmap->flags = seg_iter->flags; if (!seg_iter->sz) mmap->sz = seg_iter->calc_sz(ctx->config.dec, ctx->init_flags); res = VPX_CODEC_OK; } else res = VPX_CODEC_LIST_END; } while (!mmap->sz && res != VPX_CODEC_LIST_END); return res; } static vpx_codec_err_t vp8_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 (!ctx->priv) { vp8_init_ctx(ctx, mmap); res = VPX_CODEC_OK; } } } done = 1; if (!res && ctx->priv->alg_priv) { for (i = 0; i < NELEMENTS(vp8_mem_req_segs); i++) { if (ctx->priv->alg_priv->mmaps[i].id == mmap->id) if (!ctx->priv->alg_priv->mmaps[i].base) { ctx->priv->alg_priv->mmaps[i] = *mmap; res = VPX_CODEC_OK; } done &= (ctx->priv->alg_priv->mmaps[i].base != NULL); } } if (done && !res) { vp8_finalize_mmaps(ctx->priv->alg_priv); res = ctx->iface->init(ctx); } return res; } static vpx_codec_err_t image2yuvconfig(const vpx_image_t *img, YV12_BUFFER_CONFIG *yv12) { vpx_codec_err_t res = VPX_CODEC_OK; yv12->y_buffer = img->planes[VPX_PLANE_Y]; yv12->u_buffer = img->planes[VPX_PLANE_U]; yv12->v_buffer = img->planes[VPX_PLANE_V]; yv12->y_width = img->d_w; yv12->y_height = img->d_h; yv12->uv_width = yv12->y_width / 2; yv12->uv_height = yv12->y_height / 2; yv12->y_stride = img->stride[VPX_PLANE_Y]; yv12->uv_stride = img->stride[VPX_PLANE_U]; yv12->border = (img->stride[VPX_PLANE_Y] - img->d_w) / 2; yv12->clrtype = (img->fmt == VPX_IMG_FMT_VPXI420 || img->fmt == VPX_IMG_FMT_VPXYV12); return res; } static vpx_codec_err_t vp8_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) { vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; YV12_BUFFER_CONFIG sd; image2yuvconfig(&frame->img, &sd); vp8dx_set_reference(ctx->pbi, frame->frame_type, &sd); return VPX_CODEC_OK; } else return VPX_CODEC_INVALID_PARAM; } static vpx_codec_err_t vp8_get_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) { vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; YV12_BUFFER_CONFIG sd; image2yuvconfig(&frame->img, &sd); vp8dx_get_reference(ctx->pbi, frame->frame_type, &sd); return VPX_CODEC_OK; } else return VPX_CODEC_INVALID_PARAM; } static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx, int ctr_id, va_list args) { vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *); #if CONFIG_POSTPROC if (data) { ctx->postproc_cfg_set = 1; ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data); return VPX_CODEC_OK; } else return VPX_CODEC_INVALID_PARAM; #else return VPX_CODEC_INCAPABLE; #endif } static vpx_codec_err_t vp8_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); #define MAP(id, var) case id: var = data; break; switch (ctrl_id) { MAP (VP8_SET_DBG_COLOR_REF_FRAME, ctx->dbg_color_ref_frame_flag); MAP (VP8_SET_DBG_COLOR_MB_MODES, ctx->dbg_color_mb_modes_flag); MAP (VP8_SET_DBG_COLOR_B_MODES, ctx->dbg_color_b_modes_flag); MAP (VP8_SET_DBG_DISPLAY_MV, ctx->dbg_display_mv_flag); } return VPX_CODEC_OK; #else return VPX_CODEC_INCAPABLE; #endif } static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx, int ctrl_id, va_list args) { int *update_info = va_arg(args, int *); VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi; if (update_info) { *update_info = pbi->common.refresh_alt_ref_frame * (int) VP8_ALTR_FRAME + pbi->common.refresh_golden_frame * (int) VP8_GOLD_FRAME + pbi->common.refresh_last_frame * (int) VP8_LAST_FRAME; return VPX_CODEC_OK; } else return VPX_CODEC_INVALID_PARAM; } static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx, int ctrl_id, va_list args) { int *corrupted = va_arg(args, int *); if (corrupted) { VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi; *corrupted = pbi->common.frame_to_show->corrupted; return VPX_CODEC_OK; } else return VPX_CODEC_INVALID_PARAM; } vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] = { {VP8_SET_REFERENCE, vp8_set_reference}, {VP8_COPY_REFERENCE, vp8_get_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}, { -1, NULL}, }; #ifndef VERSION_STRING #define VERSION_STRING #endif CODEC_INTERFACE(vpx_codec_vp8_dx) = { "WebM Project VP8 Decoder" VERSION_STRING, VPX_CODEC_INTERNAL_ABI_VERSION, VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC, /* vpx_codec_caps_t caps; */ vp8_init, /* vpx_codec_init_fn_t init; */ vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */ vp8_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; */ { vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */ vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */ vp8_decode, /* vpx_codec_decode_fn_t decode; */ vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */ }, { /* encoder functions */ NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED } }; /* * BEGIN BACKWARDS COMPATIBILITY SHIM. */ vpx_codec_iface_t vpx_codec_vp8_algo = { "WebM Project VP8 Decoder (Deprecated API)" VERSION_STRING, VPX_CODEC_INTERNAL_ABI_VERSION, VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC, /* vpx_codec_caps_t caps; */ vp8_init, /* vpx_codec_init_fn_t init; */ vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */ vp8_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; */ { vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */ vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */ vp8_decode, /* vpx_codec_decode_fn_t decode; */ vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */ }, { /* encoder functions */ NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED, NOT_IMPLEMENTED } };