mirror of
https://github.com/outbackdingo/UltraGrid.git
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a62fe80c3f
Corrected various spelling mistakes in comments, documentation, and variable names across the project. Changes include: - Documentation files (CONTRIBUTING.md, README.md, etc.) - Source code comments in C/C++ files - Function parameter names and descriptions No functional changes were made.
133 lines
6.6 KiB
C
133 lines
6.6 KiB
C
/**
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* @file video_codec.h
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* @author Martin Benes <martinbenesh@gmail.com>
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* @author Lukas Hejtmanek <xhejtman@ics.muni.cz>
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* @author Petr Holub <hopet@ics.muni.cz>
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* @author Milos Liska <xliska@fi.muni.cz>
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* @author Jiri Matela <matela@ics.muni.cz>
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* @author Dalibor Matura <255899@mail.muni.cz>
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* @author Ian Wesley-Smith <iwsmith@cct.lsu.edu>
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*/
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/* Copyright (c) 2005-2023 CESNET z.s.p.o.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. 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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*
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* 2. 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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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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*
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* This product includes software developed by CESNET z.s.p.o.
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*
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* 4. Neither the name of the CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __video_codec_h
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#define __video_codec_h
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#include "types.h" // codec_t
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#ifndef __cplusplus
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#include <stdbool.h>
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#endif // !defined __cplusplus
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#include "pixfmt_conv.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAX_BPS 8 /* for Y416 */ ///< maximal (average) number of pixels per know pixel formats (up-round if needed)
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#define MAX_PADDING 64 ///< maximal padding in bytes that may be needed to align to pixfmt block size for Y416->R12L:
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///< 64 = vc_linesize(8 /*maximal block pix count (R12L)*/, Y416 /*codec with maximal length of 1st arg-sized block*/)
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#define MAX_PFB_SIZE 8 ///< maximal pixfmt block size (R12L - 8 B)
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#define PIX_BLOCK_LCM 24 ///< least common multiple of all pixfmt block sizes in pixels (codec_info_t::block_size/codec_info_t::bpp). "contributors:" 8 R12L, 6 v210
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/// Prints list of supported codecs for video module
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void show_codec_help(const char *module, const codec_t *codecs8, const codec_t *codecs10, const codec_t *codecs_ge12);
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/// @returns number of bits per color component
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int get_bits_per_component(codec_t codec) __attribute__((const));
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int get_subsampling(codec_t codec) __attribute__((const));
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/// @returns number of bytes per pixel
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double get_bpp(codec_t codec) __attribute__((const));
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uint32_t get_fourcc(codec_t codec) __attribute__((const));
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const char *get_codec_name(codec_t codec) __attribute__((const));
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const char *get_codec_name_long(codec_t codec) __attribute__((const));
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bool is_codec_opaque(codec_t codec) __attribute__((const));
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bool is_codec_interframe(codec_t codec) __attribute__((const));
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codec_t get_codec_from_fcc(uint32_t fourcc) __attribute__((const));
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codec_t get_codec_from_name(const char *name) __attribute__((const));
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const char *get_codec_file_extension(codec_t codec) __attribute__((const));
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codec_t get_codec_from_file_extension(const char *ext) __attribute__((const));
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struct pixfmt_desc get_pixfmt_desc(codec_t pixfmt);
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int compare_pixdesc(const struct pixfmt_desc *desc_a, const struct pixfmt_desc *desc_b, const struct pixfmt_desc *src_desc);
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const char *get_pixdesc_desc(struct pixfmt_desc);
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void watch_pixfmt_degrade(const char *mod_name, struct pixfmt_desc desc_src, struct pixfmt_desc desc_dst);
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bool pixdesc_equals(struct pixfmt_desc desc_a, struct pixfmt_desc desc_b);
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int get_pf_block_bytes(codec_t codec) __attribute__((const));
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int get_pf_block_pixels(codec_t codec) __attribute__((const));
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int vc_get_linesize(unsigned int width, codec_t codec) __attribute__((const));
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int vc_get_size(unsigned int width, codec_t codec) __attribute__((const));
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size_t vc_get_datalen(unsigned int width, unsigned int height, codec_t codec) __attribute__((const));
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void codec_get_planes_subsampling(codec_t pix_fmt, int *sub);
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bool codec_is_420(codec_t pix_fmt);
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bool codec_is_a_rgb(codec_t codec) __attribute__((const));
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bool codec_is_in_set(codec_t codec, const codec_t *set) __attribute__((pure));
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bool codec_is_const_size(codec_t codec) __attribute__((const));
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bool codec_is_hw_accelerated(codec_t codec) __attribute__((const));
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bool codec_is_planar(codec_t codec) __attribute__((const));
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void vc_deinterlace(unsigned char *src, long src_linesize, int lines);
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bool vc_deinterlace_ex(codec_t codec, unsigned char *src, size_t src_linesize, unsigned char *dst, size_t dst_pitch, size_t lines);
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bool clear_video_buffer(unsigned char *data, size_t linesize, size_t pitch, size_t height, codec_t color_spec);
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// conversions from/to planar formats
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void uyvy_to_i422(int width, int height, const unsigned char *in,
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unsigned char *out);
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void y416_to_i444(int width, int height, const unsigned char *in,
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unsigned char *out, int depth);
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void i444_16_to_y416(int width, int height, const unsigned char *in,
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unsigned char *out, int in_depth);
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void i422_16_to_y416(int width, int height, const unsigned char *in,
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unsigned char *out, int in_depth);
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void i420_16_to_y416(int width, int height, const unsigned char *in,
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unsigned char *out, int in_depth);
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void i420_8_to_uyvy(int width, int height, const unsigned char *in,
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unsigned char *out);
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void i422_8_to_uyvy(int width, int height, const unsigned char *in,
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unsigned char *out);
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void i444_8_to_uyvy(int width, int height, const unsigned char *in,
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unsigned char *out);
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#ifdef __cplusplus
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}
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#endif
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#endif
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