itten
388 lines
13 KiB
C++
388 lines
13 KiB
C++
#pragma once
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#include <arpa/inet.h>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <sstream>
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#include <stdexcept>
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#include <string>
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#include <nlohmann/json.hpp>
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extern "C" {
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#include <mtl/mtl_api.h>
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#include <mtl/st20_api.h>
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#include <mtl/st_pipeline_api.h>
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}
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#include <mxl/flow.h>
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#include "FlowDef.hpp"
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#include "NodeBase.hpp"
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namespace dmf {
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struct ST2110ReceiverConfig {
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std::string flow_id;
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std::string ifname;
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std::string local_ip;
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std::string source_ip;
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std::string mcast_ip;
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uint16_t udp_port = 0;
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uint8_t payload_type = 96;
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int width = 1920;
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int height = 1080;
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int depth = 8;
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int fps_num = 25;
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int fps_den = 1;
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int framebuff_cnt = 3;
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int mxl_latency_frames = 2;
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std::string mxl_index_mode = "rtp";
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bool direct_v210() const { return depth == 10; }
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enum st20_fmt transport_fmt() const {
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return direct_v210() ? ST20_FMT_YUV_422_10BIT : ST20_FMT_YUV_422_8BIT;
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}
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enum st_frame_fmt output_fmt() const {
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return direct_v210() ? ST_FRAME_FMT_V210 : ST_FRAME_FMT_UYVY;
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}
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};
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inline std::string st2110_trim(std::string s) {
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const auto first = s.find_first_not_of(" \t\r\n");
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if (first == std::string::npos) return {};
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const auto last = s.find_last_not_of(" \t\r\n");
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return s.substr(first, last - first + 1);
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}
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inline bool st2110_parse_int(const std::string& text, int* out) {
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char* end = nullptr;
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const long value = std::strtol(text.c_str(), &end, 10);
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if (!end || *end != '\0') return false;
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*out = static_cast<int>(value);
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return true;
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}
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inline void st2110_parse_exactframerate(const std::string& value,
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ST2110ReceiverConfig& cfg) {
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const auto slash = value.find('/');
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if (slash == std::string::npos) {
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if (!st2110_parse_int(value, &cfg.fps_num)) {
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throw std::runtime_error("invalid SDP exactframerate: " + value);
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}
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cfg.fps_den = 1;
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return;
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}
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const std::string num = value.substr(0, slash);
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const std::string den = value.substr(slash + 1);
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if (!st2110_parse_int(num, &cfg.fps_num) || !st2110_parse_int(den, &cfg.fps_den)) {
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throw std::runtime_error("invalid SDP exactframerate: " + value);
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}
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}
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inline void st2110_apply_fmtp_param(const std::string& key, const std::string& value,
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ST2110ReceiverConfig& cfg, std::string& sampling) {
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if (key == "width") {
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if (!st2110_parse_int(value, &cfg.width)) {
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throw std::runtime_error("invalid SDP width: " + value);
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}
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} else if (key == "height") {
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if (!st2110_parse_int(value, &cfg.height)) {
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throw std::runtime_error("invalid SDP height: " + value);
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}
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} else if (key == "depth") {
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if (!st2110_parse_int(value, &cfg.depth)) {
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throw std::runtime_error("invalid SDP depth: " + value);
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}
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} else if (key == "sampling") {
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sampling = value;
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} else if (key == "exactframerate") {
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st2110_parse_exactframerate(value, cfg);
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}
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}
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inline void st2110_parse_fmtp(const std::string& line, ST2110ReceiverConfig& cfg,
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std::string& sampling) {
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const auto space = line.find(' ');
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if (space == std::string::npos) return;
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std::stringstream params(line.substr(space + 1));
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std::string item;
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while (std::getline(params, item, ';')) {
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item = st2110_trim(item);
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if (item.empty()) continue;
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const auto eq = item.find('=');
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if (eq == std::string::npos) continue;
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const std::string key = st2110_trim(item.substr(0, eq));
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const std::string value = st2110_trim(item.substr(eq + 1));
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st2110_apply_fmtp_param(key, value, cfg, sampling);
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}
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}
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inline void st2110_apply_sdp(const std::string& sdp, ST2110ReceiverConfig& cfg) {
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std::stringstream lines(sdp);
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std::string line;
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std::string sampling = "YCbCr-4:2:2";
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while (std::getline(lines, line)) {
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line = st2110_trim(line);
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if (line.rfind("m=video ", 0) == 0) {
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std::stringstream media(line.substr(8));
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int port = 0;
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std::string proto;
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int payload = 0;
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if (media >> port >> proto >> payload) {
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if (port < 0 || port > 65535 || payload < 0 || payload > 255) {
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throw std::runtime_error("SDP m=video port or payload out of range");
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}
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cfg.udp_port = static_cast<uint16_t>(port);
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cfg.payload_type = static_cast<uint8_t>(payload);
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}
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} else if (line.rfind("c=IN IP4 ", 0) == 0) {
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std::string addr = line.substr(9);
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const auto slash = addr.find('/');
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if (slash != std::string::npos) addr.resize(slash);
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cfg.mcast_ip = st2110_trim(addr);
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} else if (line.rfind("a=source-filter:incl IN IP4 ", 0) == 0) {
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std::stringstream filter(line.substr(28));
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std::string group;
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std::string source;
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if (filter >> group >> source) {
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cfg.source_ip = source;
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}
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} else if (line.rfind("a=fmtp:", 0) == 0) {
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st2110_parse_fmtp(line.substr(7), cfg, sampling);
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}
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}
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if (sampling != "YCbCr-4:2:2" || (cfg.depth != 8 && cfg.depth != 10)) {
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throw std::runtime_error("only SDP YCbCr-4:2:2 depth=8 or depth=10 is supported currently");
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}
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}
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inline void st2110_set_ip(uint8_t dst[MTL_IP_ADDR_LEN], const std::string& ip) {
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if (inet_pton(AF_INET, ip.c_str(), dst) != 1) {
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throw std::runtime_error("invalid IP address: " + ip);
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}
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}
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inline uint16_t st2110_checked_u16(const nlohmann::json& j, const char* key) {
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const int value = j.at(key).get<int>();
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if (value < 0 || value > 65535) {
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throw std::runtime_error(std::string(key) + " out of uint16 range");
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}
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return static_cast<uint16_t>(value);
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}
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inline uint8_t st2110_checked_u8(const nlohmann::json& j, const char* key, int fallback) {
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const int value = j.value(key, fallback);
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if (value < 0 || value > 255) {
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throw std::runtime_error(std::string(key) + " out of uint8 range");
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}
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return static_cast<uint8_t>(value);
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}
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inline enum st_fps st2110_to_st_fps(int fps_num, int fps_den) {
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if (fps_den == 1) {
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switch (fps_num) {
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case 24: return ST_FPS_P24;
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case 25: return ST_FPS_P25;
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case 30: return ST_FPS_P30;
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case 50: return ST_FPS_P50;
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case 60: return ST_FPS_P60;
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case 100: return ST_FPS_P100;
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case 120: return ST_FPS_P120;
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default: break;
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}
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}
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if (fps_num == 24000 && fps_den == 1001) return ST_FPS_P23_98;
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if (fps_num == 30000 && fps_den == 1001) return ST_FPS_P29_97;
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if (fps_num == 60000 && fps_den == 1001) return ST_FPS_P59_94;
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if (fps_num == 120000 && fps_den == 1001) return ST_FPS_P119_88;
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throw std::runtime_error("unsupported ST 2110 frame rate");
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}
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inline ST2110ReceiverConfig parse_st2110_receiver_config(const nlohmann::json& cfg) {
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if (!cfg.contains("video_flow_id")) {
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throw std::runtime_error("no video output connected");
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}
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ST2110ReceiverConfig out;
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out.flow_id = cfg.at("video_flow_id").at("id").get<std::string>();
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out.ifname = cfg.at("interface").get<std::string>();
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out.local_ip = cfg.at("local_ip").get<std::string>();
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if (cfg.contains("sdp")) {
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st2110_apply_sdp(cfg.at("sdp").get<std::string>(), out);
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}
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if (cfg.contains("source_ip")) out.source_ip = cfg.at("source_ip").get<std::string>();
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if (cfg.contains("mcast_ip")) out.mcast_ip = cfg.at("mcast_ip").get<std::string>();
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if (cfg.contains("udp_port")) out.udp_port = st2110_checked_u16(cfg, "udp_port");
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out.payload_type = st2110_checked_u8(cfg, "payload_type", out.payload_type);
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out.width = cfg.value("width", out.width);
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out.height = cfg.value("height", out.height);
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out.depth = cfg.value("depth", out.depth);
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out.fps_num = cfg.value("fps_num", out.fps_num);
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out.fps_den = cfg.value("fps_den", out.fps_den);
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out.framebuff_cnt = cfg.value("framebuff_cnt", out.framebuff_cnt);
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out.mxl_latency_frames = cfg.value("mxl_latency_frames", out.mxl_latency_frames);
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out.mxl_index_mode = cfg.value("mxl_index_mode", out.mxl_index_mode);
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if (out.width <= 0 || out.height <= 0) {
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throw std::runtime_error("width and height must be positive");
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}
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if (out.depth != 8 && out.depth != 10) {
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throw std::runtime_error("only depth=8 and depth=10 are supported currently");
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}
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if (out.source_ip.empty() || out.mcast_ip.empty() || out.udp_port == 0) {
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throw std::runtime_error("source_ip, mcast_ip and udp_port are required unless provided by sdp");
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}
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if (out.width % 6 != 0) {
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throw std::runtime_error("width must be divisible by 6 for v210 output");
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}
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if (out.fps_num <= 0 || out.fps_den <= 0) {
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throw std::runtime_error("fps_num and fps_den must be positive");
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}
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if (out.framebuff_cnt < 2 || out.framebuff_cnt > ST20_FB_MAX_COUNT) {
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throw std::runtime_error("framebuff_cnt must be in [2, ST20_FB_MAX_COUNT]");
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}
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if (out.mxl_latency_frames < 1 || out.mxl_latency_frames > 30) {
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throw std::runtime_error("mxl_latency_frames must be in [1, 30]");
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}
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if (out.mxl_index_mode != "rtp" && out.mxl_index_mode != "live") {
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throw std::runtime_error("mxl_index_mode must be 'rtp' or 'live'");
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}
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return out;
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}
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class MTLContext {
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public:
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explicit MTLContext(const ST2110ReceiverConfig& cfg) {
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mtl_init_params params{};
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params.num_ports = 1;
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port_name_ = "kernel:" + cfg.ifname;
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std::snprintf(params.port[MTL_PORT_P], sizeof(params.port[MTL_PORT_P]), "%s",
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port_name_.c_str());
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params.pmd[MTL_PORT_P] = MTL_PMD_KERNEL_SOCKET;
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params.net_proto[MTL_PORT_P] = MTL_PROTO_STATIC;
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params.rx_queues_cnt[MTL_PORT_P] = 1;
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params.tx_queues_cnt[MTL_PORT_P] = 0;
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params.log_level = MTL_LOG_LEVEL_INFO;
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params.flags = MTL_FLAG_DEV_AUTO_START_STOP;
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st2110_set_ip(params.sip_addr[MTL_PORT_P], cfg.local_ip);
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handle_ = mtl_init(¶ms);
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if (!handle_) {
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throw std::runtime_error("mtl_init failed");
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}
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}
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~MTLContext() {
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if (handle_) {
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mtl_uninit(handle_);
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}
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}
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MTLContext(const MTLContext&) = delete;
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MTLContext& operator=(const MTLContext&) = delete;
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mtl_handle get() const { return handle_; }
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const std::string& port_name() const { return port_name_; }
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private:
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mtl_handle handle_{nullptr};
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std::string port_name_;
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};
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class ST20RxSession {
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public:
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ST20RxSession(mtl_handle mt, const std::string& port_name,
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const ST2110ReceiverConfig& cfg) {
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st20p_rx_ops ops{};
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ops.name = "dmf-st2110in-video";
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ops.port.num_port = 1;
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ops.port.udp_port[MTL_SESSION_PORT_P] = cfg.udp_port;
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ops.port.payload_type = cfg.payload_type;
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std::snprintf(ops.port.port[MTL_SESSION_PORT_P],
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sizeof(ops.port.port[MTL_SESSION_PORT_P]), "%s", port_name.c_str());
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st2110_set_ip(ops.port.ip_addr[MTL_SESSION_PORT_P], cfg.mcast_ip);
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st2110_set_ip(ops.port.mcast_sip_addr[MTL_SESSION_PORT_P], cfg.source_ip);
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ops.width = static_cast<uint32_t>(cfg.width);
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ops.height = static_cast<uint32_t>(cfg.height);
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ops.fps = st2110_to_st_fps(cfg.fps_num, cfg.fps_den);
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ops.interlaced = false;
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ops.transport_fmt = cfg.transport_fmt();
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ops.output_fmt = cfg.output_fmt();
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ops.device = ST_PLUGIN_DEVICE_AUTO;
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ops.framebuff_cnt = static_cast<uint16_t>(cfg.framebuff_cnt);
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ops.flags = ST20P_RX_FLAG_BLOCK_GET;
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handle_ = st20p_rx_create(mt, &ops);
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if (!handle_) {
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throw std::runtime_error("st20p_rx_create failed");
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}
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st20p_rx_set_block_timeout(handle_, 100'000'000);
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}
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~ST20RxSession() {
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if (handle_) {
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st20p_rx_wake_block(handle_);
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st20p_rx_free(handle_);
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}
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}
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ST20RxSession(const ST20RxSession&) = delete;
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ST20RxSession& operator=(const ST20RxSession&) = delete;
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st20p_rx_handle get() const { return handle_; }
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private:
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st20p_rx_handle handle_{nullptr};
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};
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class MXLVideoWriter {
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public:
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MXLVideoWriter(mxlInstance instance, const ST2110ReceiverConfig& cfg,
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const std::string& node_id)
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: instance_(instance) {
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bool created = false;
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const std::string flow_def =
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make_video_flow_def(cfg.flow_id, node_id, cfg.width, cfg.height, cfg.fps_num,
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cfg.fps_den);
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const mxlStatus st =
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mxlCreateFlowWriter(instance_, flow_def.c_str(), "", &writer_, &config_, &created);
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if (st != MXL_STATUS_OK) {
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throw std::runtime_error(std::string("mxlCreateFlowWriter failed: ") +
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mxl_status_str(st));
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}
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}
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~MXLVideoWriter() {
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if (writer_) {
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mxlReleaseFlowWriter(instance_, writer_);
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}
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}
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MXLVideoWriter(const MXLVideoWriter&) = delete;
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MXLVideoWriter& operator=(const MXLVideoWriter&) = delete;
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mxlFlowWriter get() const { return writer_; }
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const mxlFlowConfigInfo& config() const { return config_; }
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private:
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mxlInstance instance_{nullptr};
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mxlFlowWriter writer_{nullptr};
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mxlFlowConfigInfo config_{};
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};
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} // namespace dmf
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