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87 lines
4.0 KiB
87 lines
4.0 KiB
3 years ago
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/*
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Copyright (c) 2012, Broadcom Europe Ltd
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All rights reserved.
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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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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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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 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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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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#ifndef VC_CONTAINERS_UTILS_H
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#define VC_CONTAINERS_UTILS_H
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#include "containers/containers.h"
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#include "containers/containers_codecs.h"
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#include "containers/core/containers_waveformat.h"
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/*****************************************************************************
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* Type definitions
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*****************************************************************************/
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/** Definition of the Global Unique Identifier type as used by some containers */
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typedef struct GUID_T
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{
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uint32_t word0;
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uint16_t short0;
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uint16_t short1;
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uint8_t bytes[8];
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} GUID_T;
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VC_CONTAINER_ES_FORMAT_T *vc_container_format_create(unsigned int extradata_size);
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void vc_container_format_delete(VC_CONTAINER_ES_FORMAT_T *);
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VC_CONTAINER_STATUS_T vc_container_format_extradata_alloc(
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VC_CONTAINER_ES_FORMAT_T *format, unsigned int size);
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VC_CONTAINER_STATUS_T vc_container_format_copy( VC_CONTAINER_ES_FORMAT_T *p_out,
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VC_CONTAINER_ES_FORMAT_T *p_in,
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unsigned int extra_buffer_size );
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int utf8_from_charset(const char *charset, char *out, unsigned int out_size,
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const void *in, unsigned int in_size);
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const char *vc_container_metadata_id_to_string(VC_CONTAINER_METADATA_KEY_T key);
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unsigned int vc_container_es_format_to_waveformatex(VC_CONTAINER_ES_FORMAT_T *format,
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uint8_t *buffer, unsigned int buffer_size);
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unsigned int vc_container_es_format_to_bitmapinfoheader(VC_CONTAINER_ES_FORMAT_T *format,
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uint8_t *buffer, unsigned int buffer_size);
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VC_CONTAINER_STATUS_T vc_container_waveformatex_to_es_format(uint8_t *p,
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unsigned int buffer_size, unsigned int *extra_offset, unsigned int *extra_size,
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VC_CONTAINER_ES_FORMAT_T *format);
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VC_CONTAINER_STATUS_T vc_container_bitmapinfoheader_to_es_format(uint8_t *p,
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unsigned int buffer_size, unsigned int *extra_offset, unsigned int *extra_size,
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VC_CONTAINER_ES_FORMAT_T *format);
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/** Find the greatest common denominator of 2 numbers.
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*
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* @param a first number
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* @param b second number
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*
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* @return greatest common denominator of a and b
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*/
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int64_t vc_container_maths_gcd(int64_t a, int64_t b);
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/** Reduce a rational number to it's simplest form.
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*
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* @param num Pointer to the numerator of the rational number to simplify
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* @param den Pointer to the denominator of the rational number to simplify
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*/
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void vc_container_maths_rational_simplify(uint32_t *num, uint32_t *den);
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#endif /* VC_CONTAINERS_UTILS_H */
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