ref: 3bb0aed103a6b3791dda3f2539be7d4c59476292
dir: /src/data.c/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include <errno.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include "dav1d/data.h" #include "common/attributes.h" #include "common/validate.h" #include "src/data.h" #include "src/ref.h" uint8_t *dav1d_data_create_internal(Dav1dData *const buf, const size_t sz) { validate_input_or_ret(buf != NULL, NULL); buf->ref = dav1d_ref_create(sz); if (!buf->ref) return NULL; buf->data = buf->ref->const_data; buf->sz = buf->m.size = sz; dav1d_data_props_set_defaults(&buf->m); return buf->ref->data; } int dav1d_data_wrap_internal(Dav1dData *const buf, const uint8_t *const ptr, const size_t sz, void (*const free_callback)(const uint8_t *data, void *cookie), void *const cookie) { validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL)); validate_input_or_ret(ptr != NULL, DAV1D_ERR(EINVAL)); validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL)); buf->ref = dav1d_ref_wrap(ptr, free_callback, cookie); if (!buf->ref) return DAV1D_ERR(ENOMEM); buf->data = ptr; buf->sz = buf->m.size = sz; dav1d_data_props_set_defaults(&buf->m); return 0; } int dav1d_data_wrap_user_data_internal(Dav1dData *const buf, const uint8_t *const user_data, void (*const free_callback)(const uint8_t *user_data, void *cookie), void *const cookie) { validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL)); validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL)); buf->m.user_data.ref = dav1d_ref_wrap(user_data, free_callback, cookie); if (!buf->m.user_data.ref) return DAV1D_ERR(ENOMEM); buf->m.user_data.data = user_data; return 0; } void dav1d_data_ref(Dav1dData *const dst, const Dav1dData *const src) { validate_input(dst != NULL); validate_input(dst->data == NULL); validate_input(src != NULL); if (src->ref) { validate_input(src->data != NULL); dav1d_ref_inc(src->ref); } if (src->m.user_data.ref) dav1d_ref_inc(src->m.user_data.ref); *dst = *src; } void dav1d_data_move_ref(Dav1dData *const dst, Dav1dData *const src) { validate_input(dst != NULL); validate_input(dst->data == NULL); validate_input(src != NULL); if (src->ref) validate_input(src->data != NULL); *dst = *src; memset(src, 0, sizeof(*src)); } void dav1d_data_props_copy(Dav1dDataProps *const dst, const Dav1dDataProps *const src) { assert(dst != NULL); assert(src != NULL); dav1d_ref_dec(&dst->user_data.ref); *dst = *src; if (dst->user_data.ref) dav1d_ref_inc(dst->user_data.ref); } void dav1d_data_props_set_defaults(Dav1dDataProps *const props) { assert(props != NULL); props->timestamp = INT64_MIN; props->duration = 0; props->offset = -1; props->user_data.data = NULL; props->user_data.ref = NULL; } void dav1d_data_unref_internal(Dav1dData *const buf) { validate_input(buf != NULL); struct Dav1dRef *user_data_ref = buf->m.user_data.ref; if (buf->ref) { validate_input(buf->data != NULL); dav1d_ref_dec(&buf->ref); } memset(buf, 0, sizeof(*buf)); dav1d_ref_dec(&user_data_ref); }