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Dont copy pending mp4

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proitlab committed 2026-07-31 11:53:24 +07:00
1 parent 84e2e65563
commit 896a07b5fa
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+664 -17
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.oc/session.json
+645 -6
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@@ -17,19 +17,19 @@
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@@ -27638,6 +27638,645 @@
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"text": "why you copy batch_pending_YYYYMMDD_HHmmSS.mp4 to final storage? Explain only.",
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"text": "The user is asking why the `stop_and_move` function copies `batch_pending_*.mp4` (which was created during SPECULATING state) to the final storage, instead of using a proper batch name.\n\nLooking at the code flow:\n1. `start_recording()` is called when motion is detected (SPECULATING state starts)\n2. It creates a file named `batch_pending_YYYYMMDD_HHMMSS.mp4` in shm\n3. Later, if ayam is detected → CONFIRMED state\n4. When batch ends → STOPPING → `stop_and_move()` copies from shm to disk\n\nIn `stop_and_move()`, the destination filename is constructed as `batch_<N>_HHMMSS.mp4` with the batch number. The source file is whatever `current_path_` was set to during `start_recording()` — which was `batch_pending_*.mp4`.\n\nSo the file is copied with a RENAMED destination name. The \"batch_pending_\" prefix in the source file is only temporary (in shm), and when moved to disk, it gets the proper `batch_N_HHMMSS.mp4` name.\n\nIs the user asking why the source has \"pending\" in the name? That's because at SPECULATING time, we don't know the batch number yet — we're speculatively recording in case a batch starts.",
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"text": "Because at recording start (motion detected) the batch hasn't started yet — no batch number exists. The file is named `batch_pending_*` in shm as a placeholder. When the batch ends, `stop_and_move` renames the destination to `batch_N_HHMMSS.mp4` with the actual batch number.",
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"patch": "Index: src/video_writer.cpp\n===================================================================\n--- src/video_writer.cpp\t\n+++ src/video_writer.cpp\t\n@@ -1,218 +1,226 @@\n #include \"video_writer.hpp\"\n #include <iostream>\n #include <fstream>\n #include <sstream>\n #include <iomanip>\n #include <ctime>\n #include <filesystem>\n #include <sys/wait.h>\n #include <unistd.h>\n \n namespace fs = std::filesystem;\n \n VideoBatchWriter::VideoBatchWriter(const std::string& shm_dir,\n const std::string& output_dir,\n int w, int h, int fps,\n float delay_sec,\n float end_delay_sec,\n int retention_days)\n : shm_dir_(shm_dir), output_dir_(output_dir),\n w_(w), h_(h), fps_(fps),\n delay_sec_(delay_sec), end_delay_sec_(end_delay_sec),\n retention_days_(retention_days)\n {\n ensure_dir(shm_dir_);\n ensure_dir(output_dir_);\n \n for (const auto& entry : fs::directory_iterator(shm_dir_)) {\n if (entry.path().extension() == \".mp4\") {\n fs::remove(entry.path());\n }\n }\n \n cleanup_retention();\n }\n \n VideoBatchWriter::~VideoBatchWriter() {\n shutdown();\n }\n \n void VideoBatchWriter::cleanup_retention() {\n auto cutoff = std::chrono::system_clock::now() - std::chrono::hours(retention_days_ * 24);\n auto cutoff_t = std::chrono::system_clock::to_time_t(cutoff);\n std::ostringstream cutoff_ss;\n cutoff_ss << std::put_time(std::gmtime(&cutoff_t), \"%Y-%m-%d\");\n std::string cutoff_str = cutoff_ss.str();\n \n for (const auto& entry : fs::directory_iterator(output_dir_)) {\n if (!entry.is_directory()) continue;\n std::string dirname = entry.path().filename().string();\n if (dirname < cutoff_str) {\n std::error_code ec;\n fs::remove_all(entry.path(), ec);\n }\n }\n }\n \n void VideoBatchWriter::ensure_dir(const std::string& dir) {\n fs::create_directories(dir);\n }\n \n static std::string today_str() {\n auto t = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());\n std::ostringstream ss;\n ss << std::put_time(std::localtime(&t), \"%Y-%m-%d\");\n return ss.str();\n }\n \n static std::string timestamp_str() {\n auto t = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());\n std::ostringstream ss;\n ss << std::put_time(std::localtime(&t), \"%H%M%S\");\n return ss.str();\n }\n \n void VideoBatchWriter::note_motion() {\n if (state_ == IDLE) {\n start_recording();\n state_ = SPECULATING;\n state_start_ = std::chrono::steady_clock::now();\n }\n }\n \n void VideoBatchWriter::note_ayam_detection() {\n if (state_ == SPECULATING) {\n state_ = CONFIRMED;\n }\n }\n \n void VideoBatchWriter::on_batch_closed(int batch_number) {\n current_batch_ = batch_number;\n if (state_ == CONFIRMED) {\n state_ = STOPPING;\n state_start_ = std::chrono::steady_clock::now();\n }\n }\n \n void VideoBatchWriter::feed_frame(const cv::Mat& raw) {\n auto now = std::chrono::steady_clock::now();\n \n if (state_ == SPECULATING) {\n float elapsed = std::chrono::duration<float>(now - state_start_).count();\n if (elapsed >= delay_sec_) {\n stop_and_delete();\n state_ = IDLE;\n return;\n }\n }\n \n if (state_ == STOPPING) {\n float elapsed = std::chrono::duration<float>(now - state_start_).count();\n if (elapsed >= end_delay_sec_) {\n stop_and_move(current_batch_);\n state_ = IDLE;\n return;\n }\n }\n \n if (state_ != IDLE && writer_.isOpened()) {\n writer_.write(raw);\n }\n }\n \n void VideoBatchWriter::start_recording() {\n if (writer_.isOpened()) writer_.release();\n \n auto t = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());\n std::ostringstream name;\n name << \"batch_pending_\"\n << std::put_time(std::localtime(&t), \"%Y%m%d_%H%M%S\") << \".mp4\";\n current_path_ = shm_dir_ + \"/\" + name.str();\n \n writer_.open(current_path_,\n cv::VideoWriter::fourcc('a','v','c','1'),\n fps_, cv::Size(w_, h_));\n \n if (writer_.isOpened()) {\n std::cout << \"[RECORD] Speculating: \" << current_path_ << std::endl;\n } else {\n std::cerr << \"[RECORD] Failed to open: \" << current_path_ << std::endl;\n }\n }\n \n static void copy_and_clean(const std::string& src, const std::string& dst) {\n if (src.empty() || dst.empty()) return;\n {\n std::ifstream ifs(src, std::ios::binary);\n if (ifs) {\n std::ofstream ofs(dst, std::ios::binary);\n ofs << ifs.rdbuf()Line truncated
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"text": "then you should not copy batch_pending_ mp4 file. explain how to prevent that",
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"text": "The user doesn't want the speculating/placeholder video files to be copied to the final output directory. Only confirmed batch videos should be moved.\n\nCurrently:\n1. Motion detected → start recording as `batch_pending_TIMESTAMP.mp4` in shm (SPECULATING state)\n2. If ayam detected within RECORD_DELAY_SECONDS → CONFIRMED state\n3. If no ayam within delay → stop_and_delete() (delete the file)\n4. When batch closes → stop_and_move() → copies to output_dir/YYYY-MM-DD/batch_N_DDMMSS.mp4\n\nBut the issue is: `shutdown()` also copies whatever `current_path_` is, including `batch_pending_*` files if the service shuts down while speculating. And `stop_and_move` could be called on speculating files too.\n\nActually wait, `stop_and_move` is only called from `on_batch_closed` which only transitions from CONFIRMED → STOPPING. And `on_batch_closed` checks `state_ == CONFIRMED`. So speculating recordings should never reach `stop_and_move`.\n\nThe only place a `batch_pending_*` file could be copied is in `shutdown()`, which copies whatever is in `current_path_` regardless of state. That's the bug.\n\nFix: in `shutdown()`, only copy if the state is CONFIRMED or STOPPING. If IDLE or SPECULATING, just delete the file.",
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"text": "In `shutdown()` — currently copies `current_path_` regardless of state. A speculating `batch_pending_` file would be moved if shutdown happens during SPECULATING. Fix: only copy if CONFIRMED/STOPPING, else delete.",
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"oldString": "void VideoBatchWriter::shutdown() {\n if (writer_.isOpened()) {\n writer_.release();\n }\n state_ = IDLE;\n\n if (!current_path_.empty()) {\n std::string src = current_path_;\n std::string day_dir = output_dir_ + \"/\" + today_str();\n ensure_dir(day_dir);\n std::string dst = day_dir + \"/\" +\n fs::path(current_path_).filename().string();\n current_path_.clear();\n\n pid_t pid = fork();\n if (pid == 0) {\n close(STDIN_FILENO);\n close(STDOUT_FILENO);\n close(STDERR_FILENO);\n copy_and_clean(src, dst);\n _exit(0);\n }\n }\n}"
},
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build/bytetrack-counter
BIN
View File
Binary file not shown.
src/video_writer.cpp
+19 -11
View File
@@ -196,23 +196,31 @@ void VideoBatchWriter::shutdown() {
if (writer_.isOpened()) {
writer_.release();
}
auto prev_state = state_;
state_ = IDLE;
if (!current_path_.empty()) {
std::string src = current_path_;
std::string day_dir = output_dir_ + "/" + today_str();
ensure_dir(day_dir);
std::string dst = day_dir + "/" +
fs::path(current_path_).filename().string();
current_path_.clear();
pid_t pid = fork();
if (pid == 0) {
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
copy_and_clean(src, dst);
_exit(0);
if (prev_state == CONFIRMED || prev_state == STOPPING) {
std::string day_dir = output_dir_ + "/" + today_str();
ensure_dir(day_dir);
std::string dst = day_dir + "/" +
fs::path(src).filename().string();
pid_t pid = fork();
if (pid == 0) {
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
copy_and_clean(src, dst);
_exit(0);
}
} else {
std::error_code ec;
fs::remove(src, ec);
}
}
}