reset to pre-modification baseline; restart feature work from clean state

Restoring the working tree to the pristine pre-Claude baseline previously
preserved at /data/clearpilot (now /data/clearpilot-baseline). The prior
modified-but-broken tree is snapshotted at /data/openpilot-broken-2026-05-03
and tagged here as pre-reset-2026-05-03 for reference.

From here, features (UI changes, dashcam, telemetry, GPS, display modes,
speed logic, standstill power saving, etc.) will be re-introduced one at
a time with proper testing.

selfdrive/frogpilot/screenrecorder/omx_encoder.h

@@ -12,15 +12,13 @@ extern "C" {
 
 #include "common/queue.h"
 
-// OmxEncoder, lossey codec using hardware H.264
+// OmxEncoder, lossey codec using hardware hevc
 class OmxEncoder {
 public:
-  OmxEncoder(const char* path, int width, int height, int fps, int bitrate);
+  OmxEncoder(const char* path, int width, int height, int fps, int bitrate, bool h265, bool downscale);
   ~OmxEncoder();
 
   int encode_frame_rgba(const uint8_t *ptr, int in_width, int in_height, uint64_t ts);
-  int encode_frame_nv12(const uint8_t *y_ptr, int y_stride, const uint8_t *uv_ptr, int uv_stride,
-                        int in_width, int in_height, uint64_t ts);
   void encoder_open(const char* filename);
   void encoder_close();
 
@@ -44,26 +42,31 @@ private:
   int counter = 0;
 
   std::string path;
-  FILE *of = nullptr;
+  FILE *of;
 
-  size_t codec_config_len = 0;
-  uint8_t *codec_config = nullptr;
-  bool wrote_codec_config = false;
+  size_t codec_config_len;
+  uint8_t *codec_config = NULL;
+  bool wrote_codec_config;
 
   std::mutex state_lock;
   std::condition_variable state_cv;
   OMX_STATETYPE state = OMX_StateLoaded;
 
-  OMX_HANDLETYPE handle = nullptr;
+  OMX_HANDLETYPE handle;
 
   std::vector<OMX_BUFFERHEADERTYPE *> in_buf_headers;
   std::vector<OMX_BUFFERHEADERTYPE *> out_buf_headers;
 
-  uint64_t last_t = 0;
+  uint64_t last_t;
 
   SafeQueue<OMX_BUFFERHEADERTYPE *> free_in;
   SafeQueue<OMX_BUFFERHEADERTYPE *> done_out;
 
-  AVFormatContext *ofmt_ctx = nullptr;
-  AVStream *out_stream = nullptr;
+  AVFormatContext *ofmt_ctx;
+  AVCodecContext *codec_ctx;
+  AVStream *out_stream;
+  bool remuxing;
+
+  bool downscale;
+  uint8_t *y_ptr2, *u_ptr2, *v_ptr2;
 };