feat: add publishing & audio to ffi (#46)

- Divide FFI protocol into multiple files
- Audio support
- AV Streams/Sources
- Create tracks
- Use Dashmap to store handles
- Add a capture test
     - Ignored by GHA atm

examples/simple_room/src/logo_track.rs

@@ -156,9 +156,7 @@ impl LogoTrack {
                     let mut video_frame = data.video_frame.lock();
                     let i420_buffer = &mut video_frame.buffer;
 
-                    let stride_y = i420_buffer.stride_y();
-                    let stride_u = i420_buffer.stride_u();
-                    let stride_v = i420_buffer.stride_v();
+                    let (stride_y, stride_u, stride_v) = i420_buffer.strides();
                     let (data_y, data_u, data_v) = i420_buffer.data_mut();
 
                     framebuffer.fill(0);
@@ -177,7 +175,7 @@ impl LogoTrack {
 
                     yuv_helper::abgr_to_i420(
                         &framebuffer,
-                        (FB_WIDTH * PIXEL_SIZE) as i32,
+                        (FB_WIDTH * PIXEL_SIZE) as u32,
                         data_y,
                         stride_y,
                         data_u,

examples/simple_room/src/sine_track.rs

@@ -116,11 +116,11 @@ impl SineTrack {
                 samples_10ms[i] = (val * 32768.0) as i16;
             }
 
-            rtc_source.capture_frame(AudioFrame {
+            rtc_source.capture_frame(&AudioFrame {
                 data: samples_10ms.clone(),
-                sample_rate_hz: data.sample_rate,
+                sample_rate: data.sample_rate as u32,
                 num_channels: 1,
-                samples_per_channel: samples_count_10ms,
+                samples_per_channel: samples_count_10ms as u32,
             });
         }
     }

examples/simple_room/src/video_renderer.rs

@@ -119,19 +119,20 @@ impl VideoRenderer {
                         let rgba_ptr = internal.rgba_data.deref_mut();
                         let rgba_stride = buffer.width() * 4;
 
+                        let (stride_y, stride_u, stride_v) = buffer.strides();
                         let (data_y, data_u, data_v) = buffer.data();
 
                         yuv_helper::i420_to_abgr(
                             data_y,
-                            buffer.stride_y(),
+                            stride_y,
                             data_u,
-                            buffer.stride_u(),
+                            stride_u,
                             data_v,
-                            buffer.stride_v(),
+                            stride_v,
                             rgba_ptr,
                             rgba_stride,
-                            buffer.width(),
-                            buffer.height(),
+                            buffer.width() as i32,
+                            buffer.height() as i32,
                         )
                         .unwrap();