54c0a3c874
640e6cace fix(toxav): remove extra copy of video frame on encode Tested and works, but there might be alignment issues and other stuff. 6f7f51554 chore(toxav): use realtime deadline for vp8 encoder Technically all this does is choose a quality based on frame duration, which we always set to 1, and as such is always realtime. (In same timebase as pts, which we use as a frame counter...) 5047ae5a2 chore: make the source tarball exhibit the old behavior 14804a4b8 chore: Fix sonar-scan CI action. e2db7d946 cleanup: Exclude lan_discovery test from running on macos, instead of excluding it from the project. 3accade67 chore: Fix CI, disabling some tests that no longer run on CI. ef8d767e6 cleanup: Fix comment formatting errors. 34ec822da cleanup: Fix some clang-19 format warnings. 40b3f0b46 refactor: Use clang's nullability qualifiers instead of attributes. f81e30679 refactor: Use per-parameter nullability annotations. REVERT: 1701691d5 chore(toxav): use realtime deadline for vp8 encoder Technically all this does is choose a quality based on frame duration, which we always set to 1, and as such is always realtime. (In same timebase as pts, which we use as a frame counter...) REVERT: a87505867 fix(toxav): remove extra copy of video frame on encode Tested and works, but there might be alignment issues and other stuff. git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 640e6cace81b4412c45977b94eb9c41e53c54035
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2016-2025 The TokTok team.
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* Copyright © 2013 Tox project.
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* Copyright © 2013 plutooo
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*/
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/**
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* Utilities.
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*/
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#ifndef C_TOXCORE_TOXCORE_UTIL_H
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#define C_TOXCORE_TOXCORE_UTIL_H
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#include <pthread.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "attributes.h"
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#include "mem.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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bool is_power_of_2(uint64_t x);
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/** @brief Frees all pointers in a uint8_t pointer array, as well as the array itself. */
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void free_uint8_t_pointer_array(const Memory *_Nonnull mem, uint8_t *_Nullable *_Nullable ary, size_t n_items);
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/** Returns -1 if failed or 0 if success */
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int create_recursive_mutex(pthread_mutex_t *_Nonnull mutex);
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/**
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* @brief Checks whether two buffers are the same length and contents.
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*
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* Calls `memcmp` after checking the sizes are equal.
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*
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* @retval true if sizes and contents are equal.
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* @retval false otherwise.
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*/
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bool memeq(const uint8_t *_Nonnull a, size_t a_size, const uint8_t *_Nonnull b, size_t b_size);
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/**
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* @brief Copies a byte array of a given size into a newly allocated one.
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*
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* @return nullptr on allocation failure or if the input data was nullptr or data_size was 0.
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*/
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uint8_t *_Nullable memdup(const Memory *_Nonnull mem, const uint8_t *_Nullable data, size_t data_size);
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/**
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* @brief Set all bytes in `data` to 0.
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*
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* NOTE: This does not securely zero out data. DO NOT USE for sensitive data. Use
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* `crypto_memzero` from `crypto_core.h`, instead. This function is ok to use for
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* message buffers, public keys, encrypted data, etc. It is not ok for buffers
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* containing key material (secret keys, shared keys).
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*/
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void memzero(uint8_t *_Nullable data, size_t data_size);
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// Safe min/max functions with specific types. This forces the conversion to the
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// desired type before the comparison expression, giving the choice of
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// conversion to the caller. Use these instead of inline comparisons or MIN/MAX
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// macros (effectively inline comparisons).
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int16_t max_s16(int16_t a, int16_t b);
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int32_t max_s32(int32_t a, int32_t b);
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int64_t max_s64(int64_t a, int64_t b);
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int16_t min_s16(int16_t a, int16_t b);
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int32_t min_s32(int32_t a, int32_t b);
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int64_t min_s64(int64_t a, int64_t b);
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uint8_t max_u08(uint8_t a, uint8_t b);
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uint16_t max_u16(uint16_t a, uint16_t b);
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uint32_t max_u32(uint32_t a, uint32_t b);
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uint64_t max_u64(uint64_t a, uint64_t b);
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uint16_t min_u16(uint16_t a, uint16_t b);
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uint32_t min_u32(uint32_t a, uint32_t b);
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uint64_t min_u64(uint64_t a, uint64_t b);
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/**
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* Comparison function:
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* @retval -1 if `a < b`
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* @retval 0 if `a == b`
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* @retval 1 if `a > b`
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*/
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int cmp_uint(uint64_t a, uint64_t b);
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/** @brief Returns a 32-bit hash of key of size len */
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uint32_t jenkins_one_at_a_time_hash(const uint8_t *_Nonnull key, size_t len);
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/** @brief Computes a checksum of a byte array.
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*
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* @param data The byte array used to compute the checksum.
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* @param length The length in bytes of the passed data.
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*
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* @retval The resulting checksum.
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*/
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uint16_t data_checksum(const uint8_t *_Nonnull data, uint32_t length);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* C_TOXCORE_TOXCORE_UTIL_H */
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