# lamco-video Publication Review

## Summary

**Package:** lamco-video v0.1.0
**Status:** Ready for publication review
**Date:** 2025-12-15

## Package Contents

| Metric | Value |
|--------|-------|
| Files packaged | 11 |
| Uncompressed size | 107.1 KB |
| Compressed size | 28.0 KB |
| Unit tests | 22 |
| Doc tests | 2 |
| Warnings | 3 (all expected `unsafe impl Send` for marker traits) |

## Files Included

```
Cargo.toml
LICENSE-APACHE
LICENSE-MIT
README.md
src/lib.rs
src/converter.rs
src/dispatcher.rs
src/processor.rs
examples/basic.rs
```

## Features

| Feature | Default | Description |
|---------|---------|-------------|
| `damage` | No | Full damage region tracking |
| `full` | No | All features enabled |

## Dependencies

| Crate | Version | Purpose |
|-------|---------|---------|
| lamco-pipewire | 0.1 | VideoFrame, PixelFormat types |
| tokio | 1 | Async runtime (sync, rt, time) |
| tracing | 0.1 | Logging |
| thiserror | 1.0 | Error handling |
| parking_lot | 0.12 | Synchronization primitives |

## API Surface

### Primary Types

- **`BitmapConverter`** - Converts VideoFrame to RDP bitmap format
- **`FrameProcessor`** - Processes frames with rate limiting and queueing
- **`FrameDispatcher`** - Multi-stream priority-based frame routing

### Configuration

- **`ProcessorConfig`** - Frame processor settings (FPS, queue depth, etc.)
- **`DispatcherConfig`** - Dispatcher settings (backpressure, priorities)

### Output Types

- **`BitmapUpdate`** - Contains list of `BitmapData` rectangles
- **`BitmapData`** - Single region with pixel data ready for RDP
- **`Rectangle`** - Region coordinates

### Pixel Formats

- **`RdpPixelFormat`** - BgrX32, Bgr24, Rgb16, Rgb15

### Statistics

- **`ConversionStats`** - Frames converted, bytes processed, timing
- **`ProcessingStats`** - Frame counts, drop rates, queue depths
- **`DispatcherStats`** - Dispatch rates, backpressure status

### Error Types

- **`ConversionError`** - Format conversion failures
- **`ProcessingError`** - Frame processing failures
- **`DispatchError`** - Dispatch/channel errors

## Test Results

```
running 22 tests
test converter::tests::test_bitmap_converter_creation ... ok
test converter::tests::test_buffer_pool ... ok
test converter::tests::test_conversion_stats ... ok
test converter::tests::test_damage_tracker ... ok
test converter::tests::test_rdp_pixel_format ... ok
test converter::tests::test_rectangle_operations ... ok
test converter::tests::test_stride_calculation ... ok
test dispatcher::tests::test_dispatch_frame ... ok
test dispatcher::tests::test_dispatcher_config ... ok
test dispatcher::tests::test_dispatcher_creation ... ok
test dispatcher::tests::test_dispatcher_lifecycle ... ok
test dispatcher::tests::test_dispatcher_stats ... ok
test dispatcher::tests::test_stream_priority ... ok
test dispatcher::tests::test_stream_registration ... ok
test processor::tests::test_processing_stats ... ok
test processor::tests::test_processor_config ... ok
test processor::tests::test_processor_creation ... ok
test processor::tests::test_processor_lifecycle ... ok
test processor::tests::test_queued_frame ... ok
test tests::test_calculate_rdp_stride ... ok
test tests::test_recommended_queue_size ... ok
test tests::test_version ... ok

test result: ok. 22 passed; 0 failed; 0 ignored
```

## Known Warnings

The crate has 3 expected warnings:

```
warning: implementation of an `unsafe` trait
   --> src/converter.rs:642:1
    |
642 | unsafe impl Send for BitmapConverter {}
```

These are **intentional** unsafe marker trait implementations. The types contain only Send-safe fields but cannot auto-derive Send due to internal structure. Each is documented with a SAFETY comment explaining why the implementation is correct.

## Lint Configuration

The crate uses relaxed cast-related lints appropriate for video processing:

```toml
[lints.clippy]
# Relaxed for video processing code (heavy numeric conversions)
as_conversions = "allow"
cast_lossless = "allow"
cast_possible_truncation = "allow"
cast_possible_wrap = "allow"

# Still enforced
unwrap_used = "warn"
panic = "warn"
```

This matches the nature of low-level video processing code that requires extensive numeric conversions for stride calculations, pixel format conversion, and damage region handling.

## Issues to Resolve Before Publishing

### None - Ready for Publication

All issues have been resolved:

1. ✅ Imports updated from `crate::pipewire::*` to `lamco_pipewire::*`
2. ✅ All tests passing
3. ✅ Clippy clean (only expected warnings)
4. ✅ Documentation complete
5. ✅ README created
6. ✅ License files added
7. ✅ Examples created
8. ✅ Dry run successful

## Feature Discussion

The current feature set is minimal:

- **`damage`** - Enables full damage region tracking (currently all code is unconditionally compiled)
- **`full`** - Alias for all features

### Potential Future Features (not implemented)

These could be added in future versions:

1. **`compression`** - RDP bitmap compression (RLE, etc.)
2. **`vaapi`** - VAAPI hardware encoding integration
3. **`openh264`** - Software H.264 encoding
4. **`statistics`** - Extended performance metrics

## Publication Command

When ready to publish:

```bash
cd /home/greg/lamco-admin/projects/lamco-rust-crates/staging/lamco-video
cargo publish
```

## Related Crates

| Crate | Version | Status |
|-------|---------|--------|
| lamco-portal | 0.1.0 | Published |
| lamco-pipewire | 0.1.0 | Published |
| lamco-video | 0.1.0 | Ready for review |
