feat(video): add native AVC/HEVC and synchronized AAC MP4 streaming

packages/video/src/codecs/video/native_encoder.hadded+18-0

Changes to packages/video/src/codecs/video/native_encoder.h

		@@ -0,0 +1,18 @@
	1	+/* Home codec bridge, MIT. Compile against installed x264.h/x265.h. */
	2	+#ifndef HOME_NATIVE_ENCODER_H
	3	+#define HOME_NATIVE_ENCODER_H
	4	+#include <stddef.h>
	5	+#include <stdint.h>
	6	+typedef struct home_encoder home_encoder;
	7	+typedef struct { uint32_t codec, width, height, fps_num, fps_den, bitrate, quality, gop; } home_encoder_config;
	8	+/* Length-prefixed NAL units; borrowed until the next call. pts uses microseconds.
	9	+ * Low latency: no B frames/lookahead; AVC VFR buffers one input for duration.
	10	+ * Empty output means buffered. Drain flush() before close; serialize calls. */
	11	+typedef struct { const uint8_t *data; size_t size; int64_t pts; int key; } home_packet;
	12	+int home_encoder_open(const home_encoder_config *, home_encoder **);
	13	+int home_encoder_headers(home_encoder *, home_packet *);
	14	+int home_encoder_encode(home_encoder *, const uint8_t *const planes[3], const int strides[3], int64_t pts, home_packet *);
	15	+int home_encoder_request_keyframe(home_encoder *);
	16	+int home_encoder_flush(home_encoder *, home_packet *);
	17	+void home_encoder_close(home_encoder *);
	18	+#endif