/* *  Copyright (c) 2010 The VP8 project authors. All Rights Reserved. * *  Use of this source code is governed by a BSD-style license and patent *  grant that can be found in the LICENSE file in the root of the source *  tree. All contributing project authors may be found in the AUTHORS *  file in the root of the source tree. */  /*!\file vpx_decoder.c * \brief Provides the high level interface to wrap decoder algorithms. * */#include <stdlib.h>#include <string.h>#include "vpx_codec/vpx_decoder.h"#include "vpx_codec/internal/vpx_codec_internal.h" #define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var) const char *vpx_dec_iface_name(vpx_dec_iface_t *iface){    return vpx_codec_iface_name((vpx_codec_iface_t *)iface);} const char *vpx_dec_err_to_string(vpx_dec_err_t  err){    return vpx_codec_err_to_string(err);} const char *vpx_dec_error(vpx_dec_ctx_t  *ctx){    return vpx_codec_error((vpx_codec_ctx_t *)ctx);} const char *vpx_dec_error_detail(vpx_dec_ctx_t  *ctx){    return vpx_codec_error_detail((vpx_codec_ctx_t *)ctx);}  vpx_dec_err_t vpx_dec_init_ver(vpx_dec_ctx_t    *ctx,                               vpx_dec_iface_t  *iface,                               int               ver){    return vpx_codec_dec_init_ver((vpx_codec_ctx_t *)ctx,                                  (vpx_codec_iface_t *)iface,                                  NULL,                                  0,                                  ver);}  vpx_dec_err_t vpx_dec_destroy(vpx_dec_ctx_t *ctx){    return vpx_codec_destroy((vpx_codec_ctx_t *)ctx);}  vpx_dec_caps_t vpx_dec_get_caps(vpx_dec_iface_t *iface){    return vpx_codec_get_caps((vpx_codec_iface_t *)iface);}  vpx_dec_err_t vpx_dec_peek_stream_info(vpx_dec_iface_t       *iface,                                       const uint8_t         *data,                                       unsigned int           data_sz,                                       vpx_dec_stream_info_t *si){    return vpx_codec_peek_stream_info((vpx_codec_iface_t *)iface, data, data_sz,                                      (vpx_codec_stream_info_t *)si);}  vpx_dec_err_t vpx_dec_get_stream_info(vpx_dec_ctx_t         *ctx,                                      vpx_dec_stream_info_t *si){    return vpx_codec_get_stream_info((vpx_codec_ctx_t *)ctx,                                     (vpx_codec_stream_info_t *)si);}  vpx_dec_err_t vpx_dec_control(vpx_dec_ctx_t  *ctx,                              int             ctrl_id,                              void           *data){    return vpx_codec_control_((vpx_codec_ctx_t *)ctx, ctrl_id, data);}  vpx_dec_err_t vpx_dec_decode(vpx_dec_ctx_t  *ctx,                             uint8_t        *data,                             unsigned int    data_sz,                             void       *user_priv,                             int         rel_pts){    (void)rel_pts;    return vpx_codec_decode((vpx_codec_ctx_t *)ctx, data, data_sz, user_priv,                            0);} vpx_image_t *vpx_dec_get_frame(vpx_dec_ctx_t  *ctx,                               vpx_dec_iter_t *iter){    return vpx_codec_get_frame((vpx_codec_ctx_t *)ctx, iter);}  vpx_dec_err_t vpx_dec_register_put_frame_cb(vpx_dec_ctx_t             *ctx,        vpx_dec_put_frame_cb_fn_t  cb,        void                      *user_priv){    return vpx_codec_register_put_frame_cb((vpx_codec_ctx_t *)ctx, cb,                                           user_priv);}  vpx_dec_err_t vpx_dec_register_put_slice_cb(vpx_dec_ctx_t             *ctx,        vpx_dec_put_slice_cb_fn_t  cb,        void                      *user_priv){    return vpx_codec_register_put_slice_cb((vpx_codec_ctx_t *)ctx, cb,                                           user_priv);}  vpx_dec_err_t vpx_dec_xma_init_ver(vpx_dec_ctx_t    *ctx,                                   vpx_dec_iface_t  *iface,                                   int               ver){    return vpx_codec_dec_init_ver((vpx_codec_ctx_t *)ctx,                                  (vpx_codec_iface_t *)iface,                                  NULL,                                  VPX_CODEC_USE_XMA,                                  ver);} vpx_dec_err_t vpx_dec_get_mem_map(vpx_dec_ctx_t                *ctx_,                                  vpx_dec_mmap_t               *mmap,                                  const vpx_dec_stream_info_t  *si,                                  vpx_dec_iter_t               *iter){    vpx_codec_ctx_t   *ctx = (vpx_codec_ctx_t *)ctx_;    vpx_dec_err_t      res = VPX_DEC_OK;     if (!ctx || !mmap || !si || !iter || !ctx->iface)        res = VPX_DEC_INVALID_PARAM;    else if (!(ctx->iface->caps & VPX_DEC_CAP_XMA))        res = VPX_DEC_ERROR;    else    {        if (!ctx->config.dec)        {            ctx->config.dec = malloc(sizeof(vpx_codec_dec_cfg_t));            ctx->config.dec->w = si->w;            ctx->config.dec->h = si->h;        }         res = ctx->iface->get_mmap(ctx, mmap, iter);    }     return SAVE_STATUS(ctx, res);}  vpx_dec_err_t vpx_dec_set_mem_map(vpx_dec_ctx_t   *ctx_,                                  vpx_dec_mmap_t  *mmap,                                  unsigned int     num_maps){    vpx_codec_ctx_t   *ctx = (vpx_codec_ctx_t *)ctx_;    vpx_dec_err_t      res = VPX_DEC_MEM_ERROR;     if (!ctx || !mmap || !ctx->iface)        res = VPX_DEC_INVALID_PARAM;    else if (!(ctx->iface->caps & VPX_DEC_CAP_XMA))        res = VPX_DEC_ERROR;    else    {        void         *save = (ctx->priv) ? NULL : ctx->config.dec;        unsigned int i;         for (i = 0; i < num_maps; i++, mmap++)        {            if (!mmap->base)                break;             /* Everything look ok, set the mmap in the decoder */            res = ctx->iface->set_mmap(ctx, mmap);             if (res)                break;        }         if (save) free(save);    }     return SAVE_STATUS(ctx, res);}