ref: aee656d763cd9a6d1d1d4b248c8464cf8399bbb6
dir: /include/dav1d/data.h/
/* * 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. */ #ifndef __DAV1D_DATA_H__ #define __DAV1D_DATA_H__ #include <stddef.h> #include <stdint.h> #include "common.h" typedef struct Dav1dData { const uint8_t *data; ///< data pointer size_t sz; ///< data size struct Dav1dRef *ref; ///< allocation origin Dav1dDataProps m; } Dav1dData; /** * Allocate data. * * @param data Input context. * @param sz Size of the data that should be allocated. * * @return Pointer to the allocated buffer on success. NULL on error. */ DAV1D_API uint8_t * dav1d_data_create(Dav1dData *data, size_t sz); /** * Wrap an existing data array. * * @param data Input context. * @param buf The data to be wrapped. * @param sz Size of the data. * @param free_callback Function to be called when we release our last * reference to this data. In this callback, $buf will be * the $buf argument to this function, and $user_data * will be the $user_data input argument to this function. * @param user_data Opaque parameter passed to free_callback(). * * @return 0 on success. A negative errno value on error. */ DAV1D_API int dav1d_data_wrap(Dav1dData *data, const uint8_t *buf, size_t sz, void (*free_callback)(const uint8_t *buf, void *user_data), void *user_data); /** * Free the data reference. * * @param data Input context. */ DAV1D_API void dav1d_data_unref(Dav1dData *data); #endif /* __DAV1D_DATA_H__ */