417 lines
14 KiB
C++
417 lines
14 KiB
C++
#include "clip_action.h"
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#include <algorithm>
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#include <chrono>
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#include <cstdint>
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#include <cstring>
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#include <ctime>
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#include <filesystem>
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#include <fstream>
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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#include <thread>
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#if defined(RK3588_ENABLE_FFMPEG)
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extern "C" {
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/imgutils.h>
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#include <libavutil/opt.h>
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}
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#define HAS_FFMPEG 1
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#else
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#define HAS_FFMPEG 0
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#endif
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namespace rk3588 {
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namespace {
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inline uint8_t ClipU8(int v) {
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if (v < 0) return 0;
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if (v > 255) return 255;
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return static_cast<uint8_t>(v);
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}
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inline const uint8_t* PlanePtr(const Frame& f, int idx) {
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if (idx < 0 || idx >= f.plane_count) return nullptr;
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if (f.planes[idx].data) return f.planes[idx].data;
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if (!f.data) return nullptr;
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const int off = f.planes[idx].offset;
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if (off < 0) return nullptr;
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return f.data + static_cast<size_t>(off);
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}
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inline int PlaneStride(const Frame& f, int idx, int fallback) {
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if (idx >= 0 && idx < f.plane_count && f.planes[idx].stride > 0) return f.planes[idx].stride;
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if (f.stride > 0) return f.stride;
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return fallback;
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}
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bool FillYuv420pFromFrame(const Frame& src, int width, int height, AVFrame* dst) {
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if (!dst) return false;
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if (dst->format != AV_PIX_FMT_YUV420P) return false;
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if (width <= 0 || height <= 0) return false;
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uint8_t* y = dst->data[0];
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uint8_t* u = dst->data[1];
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uint8_t* v = dst->data[2];
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const int y_stride = dst->linesize[0];
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const int u_stride = dst->linesize[1];
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const int v_stride = dst->linesize[2];
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if (!y || !u || !v || y_stride <= 0 || u_stride <= 0 || v_stride <= 0) return false;
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if (src.width != width || src.height != height) return false;
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if (src.format == PixelFormat::YUV420) {
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const uint8_t* sy = PlanePtr(src, 0);
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const uint8_t* su = PlanePtr(src, 1);
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const uint8_t* sv = PlanePtr(src, 2);
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if (!sy || !su || !sv) return false;
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const int sy_stride = PlaneStride(src, 0, width);
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const int su_stride = PlaneStride(src, 1, width / 2);
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const int sv_stride = PlaneStride(src, 2, width / 2);
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for (int row = 0; row < height; ++row) {
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std::memcpy(y + row * y_stride, sy + row * sy_stride, static_cast<size_t>(width));
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}
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const int uv_h = height / 2;
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const int uv_w = width / 2;
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for (int row = 0; row < uv_h; ++row) {
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std::memcpy(u + row * u_stride, su + row * su_stride, static_cast<size_t>(uv_w));
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std::memcpy(v + row * v_stride, sv + row * sv_stride, static_cast<size_t>(uv_w));
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}
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return true;
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}
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if (src.format == PixelFormat::NV12) {
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const uint8_t* sy = PlanePtr(src, 0);
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const uint8_t* suv = PlanePtr(src, 1);
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if (!sy) return false;
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const int sy_stride = PlaneStride(src, 0, width);
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const int suv_stride = PlaneStride(src, 1, width);
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if (!suv) {
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if (!src.data) return false;
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suv = src.data + static_cast<size_t>(sy_stride) * static_cast<size_t>(height);
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}
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for (int row = 0; row < height; ++row) {
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std::memcpy(y + row * y_stride, sy + row * sy_stride, static_cast<size_t>(width));
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}
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const int uv_h = height / 2;
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const int uv_w = width / 2;
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for (int row = 0; row < uv_h; ++row) {
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const uint8_t* src_uv = suv + row * suv_stride;
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uint8_t* dst_u = u + row * u_stride;
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uint8_t* dst_v = v + row * v_stride;
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for (int col = 0; col < uv_w; ++col) {
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dst_u[col] = src_uv[col * 2 + 0];
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dst_v[col] = src_uv[col * 2 + 1];
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}
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}
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return true;
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}
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if (src.format == PixelFormat::RGB || src.format == PixelFormat::BGR) {
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const bool is_bgr = (src.format == PixelFormat::BGR);
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const uint8_t* s = PlanePtr(src, 0);
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if (!s) s = src.data;
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if (!s) return false;
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const int s_stride = PlaneStride(src, 0, width * 3);
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const int uv_w = width / 2;
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const int uv_h = height / 2;
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for (int row = 0; row < height; row += 2) {
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const uint8_t* row0 = s + row * s_stride;
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const uint8_t* row1 = (row + 1 < height) ? (s + (row + 1) * s_stride) : row0;
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uint8_t* y0 = y + row * y_stride;
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uint8_t* y1 = (row + 1 < height) ? (y + (row + 1) * y_stride) : y0;
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const int uv_row = row / 2;
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uint8_t* uu = (uv_row < uv_h) ? (u + uv_row * u_stride) : nullptr;
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uint8_t* vv = (uv_row < uv_h) ? (v + uv_row * v_stride) : nullptr;
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for (int col = 0; col < width; col += 2) {
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int u_sum = 0;
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int v_sum = 0;
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int samples = 0;
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auto sample = [&](const uint8_t* p, uint8_t* ydst) {
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const int b = is_bgr ? p[0] : p[2];
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const int g = p[1];
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const int r = is_bgr ? p[2] : p[0];
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const int yy = (77 * r + 150 * g + 29 * b + 128) >> 8;
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*ydst = ClipU8(yy);
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u_sum += (-43 * r - 84 * g + 127 * b);
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v_sum += (127 * r - 106 * g - 21 * b);
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samples += 1;
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};
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const uint8_t* p00 = row0 + col * 3;
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const uint8_t* p01 = (col + 1 < width) ? (row0 + (col + 1) * 3) : p00;
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const uint8_t* p10 = row1 + col * 3;
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const uint8_t* p11 = (col + 1 < width) ? (row1 + (col + 1) * 3) : p10;
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sample(p00, &y0[col]);
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if (col + 1 < width) sample(p01, &y0[col + 1]);
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if (row + 1 < height) {
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sample(p10, &y1[col]);
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if (col + 1 < width) sample(p11, &y1[col + 1]);
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} else {
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sample(p10, &y1[col]);
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if (col + 1 < width) sample(p11, &y1[col + 1]);
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}
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const int denom = samples > 0 ? samples : 1;
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const int u_val = ((u_sum / denom) + 128 * 256 + 128) >> 8;
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const int v_val = ((v_sum / denom) + 128 * 256 + 128) >> 8;
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const int uv_col = col / 2;
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if (uu && vv && uv_col >= 0 && uv_col < uv_w) {
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uu[uv_col] = ClipU8(u_val);
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vv[uv_col] = ClipU8(v_val);
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}
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}
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}
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return true;
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}
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return false;
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}
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} // namespace
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bool ClipAction::Init(const SimpleJson& config) {
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pre_sec_ = config.ValueOr<int>("pre_sec", 5);
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post_sec_ = config.ValueOr<int>("post_sec", 10);
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format_ = config.ValueOr<std::string>("format", "mp4");
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fps_ = config.ValueOr<int>("fps", 25);
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if (const SimpleJson* upload_cfg = config.Find("upload")) {
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uploader_ = CreateUploader(*upload_cfg);
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if (!uploader_) {
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std::cerr << "[ClipAction] failed to create uploader\n";
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return false;
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}
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} else {
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SimpleJson default_cfg;
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uploader_ = CreateUploader(default_cfg);
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}
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std::cout << "[ClipAction] initialized, pre=" << pre_sec_ << "s post=" << post_sec_
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<< "s format=" << format_ << "\n";
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return true;
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}
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void ClipAction::Execute(AlarmEvent& event, std::shared_ptr<Frame> frame) {
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if (!frame_buffer_) {
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std::cerr << "[ClipAction] frame buffer not set\n";
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return;
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}
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if (!frame) return;
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uint64_t trigger_ts_ms = 0;
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if (!frame_buffer_->FindTimestampByFrameId(frame->frame_id, trigger_ts_ms)) {
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using namespace std::chrono;
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trigger_ts_ms = static_cast<uint64_t>(duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count());
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}
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const uint64_t pre_ms = static_cast<uint64_t>(std::max(0, pre_sec_)) * 1000ULL;
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const uint64_t post_ms = static_cast<uint64_t>(std::max(0, post_sec_)) * 1000ULL;
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const uint64_t start_ts = (trigger_ts_ms > pre_ms) ? (trigger_ts_ms - pre_ms) : 0;
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const uint64_t end_ts = trigger_ts_ms + post_ms;
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// Best-effort: wait for post-event window to elapse so frames are available in ring buffer.
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if (post_sec_ > 0) {
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std::this_thread::sleep_for(std::chrono::seconds(post_sec_));
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}
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auto frames = frame_buffer_->GetFramesInRange(start_ts, end_ts);
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if (frames.empty()) {
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frames.push_back(frame);
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}
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std::string url = ProcessClip(frames, event);
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if (!url.empty()) {
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event.clip_url = url;
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std::cout << "[ClipAction] clip uploaded: " << url << "\n";
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}
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}
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std::string ClipAction::ProcessClip(const std::vector<std::shared_ptr<Frame>>& frames, const AlarmEvent& event) {
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#if HAS_FFMPEG
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if (frames.empty()) {
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std::cerr << "[ClipAction] no frames to process\n";
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return "";
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}
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std::shared_ptr<Frame> sample_frame;
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for (const auto& f : frames) {
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if (f) { sample_frame = f; break; }
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}
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if (!sample_frame) return "";
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int width = sample_frame->width;
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int height = sample_frame->height;
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if (width <= 0 || height <= 0) {
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std::cerr << "[ClipAction] invalid frame size\n";
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return "";
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}
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// Create temporary file
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std::filesystem::path tmp_dir;
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try {
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tmp_dir = std::filesystem::temp_directory_path();
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} catch (...) {
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tmp_dir = ".";
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}
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std::filesystem::path tmp_path = tmp_dir / ("clip_" + std::to_string(event.timestamp_ms) + "." + format_);
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// Set up FFmpeg output
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AVFormatContext* fmt_ctx = nullptr;
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if (avformat_alloc_output_context2(&fmt_ctx, nullptr, format_.c_str(), tmp_path.string().c_str()) < 0) {
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std::cerr << "[ClipAction] failed to create output context\n";
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return "";
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}
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const AVCodec* codec = avcodec_find_encoder(AV_CODEC_ID_H264);
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if (!codec) {
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avformat_free_context(fmt_ctx);
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return "";
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}
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AVStream* stream = avformat_new_stream(fmt_ctx, codec);
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if (!stream) {
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avformat_free_context(fmt_ctx);
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return "";
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}
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AVCodecContext* enc_ctx = avcodec_alloc_context3(codec);
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enc_ctx->width = width;
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enc_ctx->height = height;
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enc_ctx->time_base = AVRational{1, fps_};
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enc_ctx->framerate = AVRational{fps_, 1};
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enc_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
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enc_ctx->bit_rate = 2000000;
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enc_ctx->gop_size = fps_;
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if (fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER) {
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enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
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}
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if (avcodec_open2(enc_ctx, codec, nullptr) < 0) {
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avcodec_free_context(&enc_ctx);
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avformat_free_context(fmt_ctx);
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return "";
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}
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avcodec_parameters_from_context(stream->codecpar, enc_ctx);
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stream->time_base = enc_ctx->time_base;
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if (!(fmt_ctx->oformat->flags & AVFMT_NOFILE)) {
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if (avio_open(&fmt_ctx->pb, tmp_path.string().c_str(), AVIO_FLAG_WRITE) < 0) {
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avcodec_free_context(&enc_ctx);
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avformat_free_context(fmt_ctx);
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return "";
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}
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}
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if (avformat_write_header(fmt_ctx, nullptr) < 0) {
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avcodec_free_context(&enc_ctx);
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avformat_free_context(fmt_ctx);
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return "";
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}
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// Encode frames
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AVFrame* av_frame = av_frame_alloc();
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av_frame->width = width;
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av_frame->height = height;
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av_frame->format = AV_PIX_FMT_YUV420P;
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av_frame_get_buffer(av_frame, 32);
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AVPacket* pkt = av_packet_alloc();
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int64_t pts = 0;
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auto encode_frame = [&](const std::shared_ptr<Frame>& frame) {
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if (!frame) return;
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if (!FillYuv420pFromFrame(*frame, width, height, av_frame)) return;
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av_frame->pts = pts++;
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avcodec_send_frame(enc_ctx, av_frame);
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while (avcodec_receive_packet(enc_ctx, pkt) == 0) {
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av_packet_rescale_ts(pkt, enc_ctx->time_base, stream->time_base);
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pkt->stream_index = stream->index;
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av_interleaved_write_frame(fmt_ctx, pkt);
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av_packet_unref(pkt);
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}
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};
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for (const auto& f : frames) {
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encode_frame(f);
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}
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// Flush encoder
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avcodec_send_frame(enc_ctx, nullptr);
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while (avcodec_receive_packet(enc_ctx, pkt) == 0) {
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av_packet_rescale_ts(pkt, enc_ctx->time_base, stream->time_base);
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pkt->stream_index = stream->index;
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av_interleaved_write_frame(fmt_ctx, pkt);
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av_packet_unref(pkt);
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}
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av_write_trailer(fmt_ctx);
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av_packet_free(&pkt);
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av_frame_free(&av_frame);
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avcodec_free_context(&enc_ctx);
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if (!(fmt_ctx->oformat->flags & AVFMT_NOFILE)) { avio_closep(&fmt_ctx->pb); }
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avformat_free_context(fmt_ctx);
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// Read file and upload
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std::ifstream file(tmp_path, std::ios::binary | std::ios::ate);
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if (!file) {
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std::cerr << "[ClipAction] failed to read temp file\n";
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return "";
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}
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size_t file_size = file.tellg();
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file.seekg(0);
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std::vector<uint8_t> file_data(file_size);
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file.read(reinterpret_cast<char*>(file_data.data()), file_size);
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file.close();
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std::string key = GenerateKey(event);
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auto result = uploader_->Upload(key, file_data.data(), file_data.size(), "video/mp4");
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// Clean up temp file
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std::error_code ec;
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std::filesystem::remove(tmp_path, ec);
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if (result.success) {
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return result.url;
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}
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std::cerr << "[ClipAction] upload failed: " << result.error << "\n";
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#else
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std::cerr << "[ClipAction] FFmpeg not enabled\n";
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#endif
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return "";
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}
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std::string ClipAction::GenerateKey(const AlarmEvent& event) {
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auto now = std::chrono::system_clock::now();
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auto time_t_now = std::chrono::system_clock::to_time_t(now);
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std::tm* tm = std::localtime(&time_t_now);
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std::ostringstream oss;
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oss << std::put_time(tm, "%Y%m%d") << "/"
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<< event.node_id << "_"
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<< std::put_time(tm, "%H%M%S") << "_"
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<< event.frame_id << "." << format_;
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return oss.str();
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}
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} // namespace rk3588
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