diff --git a/smpte/2022_6_hbrmt.h b/smpte/2022_6_hbrmt.h new file mode 100644 index 0000000..3af8a3e --- /dev/null +++ b/smpte/2022_6_hbrmt.h @@ -0,0 +1,208 @@ +/***************************************************************************** + * 2022_6_hbrmt.h + ***************************************************************************** + * Copyright (C) 2015 Open Broadcast Systems Ltd + * + * Authors: Kieran Kunhya + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject + * to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + *****************************************************************************/ + +/* + * Normative references: + * - SMPTE 2022-6 + */ + +#ifndef __BITSTREAM_SMPTE_2022_6_HBRMT_H__ +#define __BITSTREAM_SMPTE_2022_6_HBRMT_H__ + +#include /* uint8_t, uint16_t, etc... */ +#include /* bool */ + +#ifdef __cplusplus +extern "C" +{ +#endif + +/* + * Reminder : High Bit Rate Media Payload Header + 0 1 2 3 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + |Ext |F|VSID | FRCount | R | S | FEC | CF | RESERVE | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | MAP | FRAME | FRAME |SAMPLE | FMT-RESERVE | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Video timestamp (only if CF>0) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Header extension (only if Ext > 0) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +static inline void smpte_hbrmt_set_ext(uint8_t *p_hbrmt, uint8_t ext) +{ + p_hbrmt[0] |= (ext & 0xf) << 4; +} + +static inline uint8_t smpte_hbrmt_get_ext(const uint8_t *p_hbrmt) +{ + return p_hbrmt[0] >> 4; +} + +static inline void smpte_hbrmt_set_video_source_format(uint8_t *p_hbrmt) +{ + p_hbrmt[0] |= 0x8; +} + +static inline bool smpte_hbrmt_check_video_source_format(const uint8_t *p_hbrmt) +{ + return !!(p_hbrmt[0] & 0x8); +} + +static inline void smpte_hbrmt_set_video_source_id(uint8_t *p_hbrmt, uint8_t vsid) +{ + p_hbrmt[0] |= (vsid & 0x7); +} + +static inline uint8_t smpte_hbrmt_get_video_source_id(const uint8_t *p_hbrmt) +{ + return p_hbrmt[0] & 0x7; +} + +static inline void smpte_hbrmt_set_frame_count(uint8_t *p_hbrmt, uint8_t frcount) +{ + p_hbrmt[1] = frcount; +} + +static inline uint8_t smpte_hbrmt_get_frame_count(const uint8_t *p_hbrmt) +{ + return p_hbrmt[1]; +} + +static inline void smpte_hbrmt_set_reference_for_time_stamp(uint8_t *p_hbrmt, uint8_t r) +{ + p_hbrmt[2] |= (r & 0x3) << 6; +} + +static inline uint8_t smpte_hbrmt_get_reference_for_time_stamp(const uint8_t *p_hbrmt) +{ + return p_hbrmt[2] >> 6; +} + +static inline void smpte_hbrmt_set_video_payload_scrambling(uint8_t *p_hbrmt, uint8_t s) +{ + p_hbrmt[2] |= (s & 0x3) << 4; +} + +static inline uint8_t smpte_hbrmt_get_video_payload_scrambling(const uint8_t *p_hbrmt) +{ + return (p_hbrmt[2] >> 4) & 0x3; +} + +static inline void smpte_hbrmt_set_fec(uint8_t *p_hbrmt, uint8_t fec) +{ + p_hbrmt[2] |= (fec & 0x7) << 1; +} + +static inline uint8_t smpte_hbrmt_get_fec(const uint8_t *p_hbrmt) +{ + return (p_hbrmt[2] >> 1) & 0x7; +} + +static inline void smpte_hbrmt_set_clock_frequency(uint8_t *p_hbrmt, uint8_t cf) +{ + p_hbrmt[2] |= (cf >> 3) & 1; + p_hbrmt[3] |= (cf & 0x7) << 5; +} + +static inline uint8_t smpte_hbrmt_get_clock_frequency(const uint8_t *p_hbrmt) +{ + return ((p_hbrmt[2] & 1) << 3) | p_hbrmt[3] >> 5; +} + +static inline void smpte_hbrmt_set_reserved(uint8_t *p_hbrmt) +{ + p_hbrmt[3] &= ~0x1f; +} + +static inline void smpte_hbrmt_set_map(uint8_t *p_hbrmt, uint8_t map) +{ + p_hbrmt[4] |= (map & 0xf) << 4; +} + +static inline uint8_t smpte_hbrmt_get_map(const uint8_t *p_hbrmt) +{ + return p_hbrmt[4] >> 4; +} + +static inline void smpte_hbrmt_set_frame(uint8_t *p_hbrmt, uint8_t frame) +{ + p_hbrmt[4] |= (frame >> 4); + p_hbrmt[5] |= (frame & 0xf) << 4; +} + +static inline uint8_t smpte_hbrmt_get_frame(const uint8_t *p_hbrmt) +{ + return ((p_hbrmt[4] & 0xf) << 4) | (p_hbrmt[5] >> 4); +} + +static inline void smpte_hbrmt_set_frate(uint8_t *p_hbrmt, uint8_t frate) +{ + p_hbrmt[5] |= (frate >> 4); + p_hbrmt[6] |= (frate & 0xf) << 4; +} + +static inline uint8_t smpte_hbrmt_get_frate(const uint8_t *p_hbrmt) +{ + return ((p_hbrmt[5] & 0xf) << 4) | (p_hbrmt[6] >> 4); +} + +static inline void smpte_hbrmt_set_sample(uint8_t *p_hbrmt, uint8_t sample) +{ + p_hbrmt[6] |= (sample & 0xf); +} + +static inline uint8_t smpte_hbrmt_get_sample(const uint8_t *p_hbrmt) +{ + return p_hbrmt[6] & 0xf; +} + +static inline void smpte_hbrmt_set_fmt_reserve(uint8_t *p_hbrmt) +{ + p_hbrmt[7] = 0; +} + +static inline void smpte_hbrmt_set_timestamp(uint8_t *p_hbrmt, uint32_t timestamp) +{ + p_hbrmt[8] = (timestamp >> 24) & 0xff; + p_hbrmt[9] = (timestamp >> 16) & 0xff; + p_hbrmt[10] = (timestamp >> 8) & 0xff; + p_hbrmt[11] = (timestamp >> 0) & 0xff; +} + +static inline uint32_t smpte_hbrmt_get_timestamp(const uint8_t *p_hbrmt) +{ + return (p_hbrmt[8] << 24) | (p_hbrmt[9] << 16) | (p_hbrmt[10] << 8) | p_hbrmt[11]; +} + +#ifdef __cplusplus +} +#endif + +#endif