150 lines
5 KiB
C
150 lines
5 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Two Orioles, LLC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "dav1d/data.h"
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#include "common/attributes.h"
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#include "common/validate.h"
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#include "src/data.h"
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#include "src/ref.h"
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uint8_t *dav1d_data_create_internal(Dav1dData *const buf, const size_t sz) {
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validate_input_or_ret(buf != NULL, NULL);
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if (sz > SIZE_MAX / 2) return NULL;
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buf->ref = dav1d_ref_create(sz);
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if (!buf->ref) return NULL;
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buf->data = buf->ref->const_data;
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buf->sz = sz;
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dav1d_data_props_set_defaults(&buf->m);
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buf->m.size = sz;
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return buf->ref->data;
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}
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int dav1d_data_wrap_internal(Dav1dData *const buf, const uint8_t *const ptr,
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const size_t sz,
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void (*const free_callback)(const uint8_t *data,
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void *cookie),
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void *const cookie)
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{
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validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL));
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validate_input_or_ret(ptr != NULL, DAV1D_ERR(EINVAL));
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validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL));
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if (sz > SIZE_MAX / 2) return DAV1D_ERR(EINVAL);
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Dav1dRef *const ref = malloc(sizeof(Dav1dRef));
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if (!ref) return DAV1D_ERR(ENOMEM);
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buf->ref = dav1d_ref_init(ref, ptr, free_callback, cookie, 1);
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buf->data = ptr;
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buf->sz = sz;
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dav1d_data_props_set_defaults(&buf->m);
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buf->m.size = sz;
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return 0;
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}
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int dav1d_data_wrap_user_data_internal(Dav1dData *const buf,
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const uint8_t *const user_data,
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void (*const free_callback)(const uint8_t *user_data,
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void *cookie),
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void *const cookie)
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{
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validate_input_or_ret(buf != NULL, DAV1D_ERR(EINVAL));
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validate_input_or_ret(free_callback != NULL, DAV1D_ERR(EINVAL));
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Dav1dRef *const ref = malloc(sizeof(Dav1dRef));
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if (!ref) return DAV1D_ERR(ENOMEM);
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buf->m.user_data.ref = dav1d_ref_init(ref, user_data, free_callback, cookie, 1);
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buf->m.user_data.data = user_data;
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return 0;
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}
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void dav1d_data_ref(Dav1dData *const dst, const Dav1dData *const src) {
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validate_input(dst != NULL);
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validate_input(dst->data == NULL);
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validate_input(src != NULL);
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if (src->ref) {
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validate_input(src->data != NULL);
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dav1d_ref_inc(src->ref);
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}
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if (src->m.user_data.ref) dav1d_ref_inc(src->m.user_data.ref);
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*dst = *src;
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}
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void dav1d_data_props_copy(Dav1dDataProps *const dst,
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const Dav1dDataProps *const src)
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{
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assert(dst != NULL);
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assert(src != NULL);
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dav1d_ref_dec(&dst->user_data.ref);
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*dst = *src;
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if (dst->user_data.ref) dav1d_ref_inc(dst->user_data.ref);
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}
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void dav1d_data_props_set_defaults(Dav1dDataProps *const props) {
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assert(props != NULL);
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memset(props, 0, sizeof(*props));
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props->timestamp = INT64_MIN;
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props->offset = -1;
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}
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void dav1d_data_props_unref_internal(Dav1dDataProps *const props) {
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validate_input(props != NULL);
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struct Dav1dRef *user_data_ref = props->user_data.ref;
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dav1d_data_props_set_defaults(props);
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dav1d_ref_dec(&user_data_ref);
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}
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void dav1d_data_unref_internal(Dav1dData *const buf) {
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validate_input(buf != NULL);
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struct Dav1dRef *user_data_ref = buf->m.user_data.ref;
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if (buf->ref) {
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validate_input(buf->data != NULL);
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dav1d_ref_dec(&buf->ref);
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}
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memset(buf, 0, sizeof(*buf));
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dav1d_data_props_set_defaults(&buf->m);
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dav1d_ref_dec(&user_data_ref);
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}
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