/** * @file video_codec.h * @author Martin Benes * @author Lukas Hejtmanek * @author Petr Holub * @author Milos Liska * @author Jiri Matela * @author Dalibor Matura <255899@mail.muni.cz> * @author Ian Wesley-Smith */ /* Copyright (c) 2005-2023 CESNET z.s.p.o. * * Redistribution and use in source and binary forms, with or without * modification, is 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. * * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * * This product includes software developed by CESNET z.s.p.o. * * 4. Neither the name of the CESNET nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESSED 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 AUTHORS 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 __video_codec_h #define __video_codec_h #include "types.h" // codec_t #ifndef __cplusplus #include #endif // !defined __cplusplus #include "pixfmt_conv.h" #ifdef __cplusplus extern "C" { #endif #define MAX_BPS 8 /* for Y416 */ ///< maximal (average) number of pixels per know pixel formats (up-round if needed) #define MAX_PADDING 64 ///< maximal padding in bytes that may be needed to align to pixfmt block size for Y416->R12L: ///< 64 = vc_linesize(8 /*maximal block pix count (R12L)*/, Y416 /*codec with maximal lenght of 1st arg-sized block*/) #define MAX_PFB_SIZE 8 ///< maximal pixfmt block size (R12L - 8 B) #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 /// Prints list of suppored codecs for video module void show_codec_help(const char *module, const codec_t *codecs8, const codec_t *codecs10, const codec_t *codecs_ge12); /// @returns number of bits per color component int get_bits_per_component(codec_t codec) __attribute__((const)); int get_subsampling(codec_t codec) __attribute__((const)); /// @returns number of bytes per pixel double get_bpp(codec_t codec) __attribute__((const)); uint32_t get_fourcc(codec_t codec) __attribute__((const)); const char *get_codec_name(codec_t codec) __attribute__((const)); const char *get_codec_name_long(codec_t codec) __attribute__((const)); bool is_codec_opaque(codec_t codec) __attribute__((const)); bool is_codec_interframe(codec_t codec) __attribute__((const)); codec_t get_codec_from_fcc(uint32_t fourcc) __attribute__((const)); codec_t get_codec_from_name(const char *name) __attribute__((const)); const char *get_codec_file_extension(codec_t codec) __attribute__((const)); codec_t get_codec_from_file_extension(const char *ext) __attribute__((const)); struct pixfmt_desc get_pixfmt_desc(codec_t pixfmt); int compare_pixdesc(const struct pixfmt_desc *desc_a, const struct pixfmt_desc *desc_b, const struct pixfmt_desc *src_desc); const char *get_pixdesc_desc(struct pixfmt_desc); void watch_pixfmt_degrade(const char *mod_name, struct pixfmt_desc desc_src, struct pixfmt_desc desc_dst); bool pixdesc_equals(struct pixfmt_desc desc_a, struct pixfmt_desc desc_b); int get_pf_block_bytes(codec_t codec) __attribute__((const)); int get_pf_block_pixels(codec_t codec) __attribute__((const)); int vc_get_linesize(unsigned int width, codec_t codec) __attribute__((const)); int vc_get_size(unsigned int width, codec_t codec) __attribute__((const)); size_t vc_get_datalen(unsigned int width, unsigned int height, codec_t codec) __attribute__((const)); void codec_get_planes_subsampling(codec_t pix_fmt, int *sub); bool codec_is_420(codec_t pix_fmt); bool codec_is_a_rgb(codec_t codec) __attribute__((const)); bool codec_is_in_set(codec_t codec, const codec_t *set) __attribute__((pure)); bool codec_is_const_size(codec_t codec) __attribute__((const)); bool codec_is_hw_accelerated(codec_t codec) __attribute__((const)); bool codec_is_planar(codec_t codec) __attribute__((const)); void vc_deinterlace(unsigned char *src, long src_linesize, int lines); bool vc_deinterlace_ex(codec_t codec, unsigned char *src, size_t src_linesize, unsigned char *dst, size_t dst_pitch, size_t lines); bool clear_video_buffer(unsigned char *data, size_t linesize, size_t pitch, size_t height, codec_t color_spec); // conversions from/to planar formats void uyvy_to_i422(int width, int height, const unsigned char *in, unsigned char *out); void y416_to_i444(int width, int height, const unsigned char *in, unsigned char *out, int depth); void i444_16_to_y416(int width, int height, const unsigned char *in, unsigned char *out, int in_depth); void i422_16_to_y416(int width, int height, const unsigned char *in, unsigned char *out, int in_depth); void i420_16_to_y416(int width, int height, const unsigned char *in, unsigned char *out, int in_depth); void i420_8_to_uyvy(int width, int height, const unsigned char *in, unsigned char *out); void i422_8_to_uyvy(int width, int height, const unsigned char *in, unsigned char *out); void i444_8_to_uyvy(int width, int height, const unsigned char *in, unsigned char *out); #ifdef __cplusplus } #endif #endif