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spoopyghosty0
0ae754fa5d
native/venc/fp_venc: own clean-room driver of the Frame's iris encoder (V4L2 stateful encoder interface, written from native/venc/SPEC.md = kernel docs + values measured on the Frame). Reads SteamVR's headset-view webcam, box-scales and converts RGB24 to NV12 (NEON, bit-identical scalar reference), CBR H.264 with SPS/PPS on every IDR, one frame per slot of an even fraction of the panel rate read through DRM (96 Hz -> 32 fps). stdin "k" = keyframe, EOF = stop; --probe/--selftest. Static freestanding aarch64 binary in artifacts/linux-arm64-bin (reproducible). livestream: the script probes fp_venc and pipes it into ffmpeg (-c:v copy + AAC), else the old x264 30 fps path; the helper is synced to ~/.local/share/frameport/bin by sha256 at stream start (no agent change); a new viewer asks for a keyframe and waits for it; the status line shows the encoder and fps. Tests: hardware/fallback script branches, keyframe-on-join, helper sync; tests/test_venc.py compares convert.c with a Python reference (native marker). Not yet run on the device.
18 lines
476 B
C
18 lines
476 B
C
/* Minimal stand-in for libc's <sys/time.h>: linux/videodev2.h includes it for struct timeval (v4l2_buffer) and
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* struct timespec (v4l2_event). There is no libc at build time (fp_venc is freestanding), so the two structs are
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* declared here with the aarch64 Linux layout (two 64-bit longs each). */
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#ifndef FP_VENC_SYS_TIME_H
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#define FP_VENC_SYS_TIME_H
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struct timeval {
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long tv_sec;
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long tv_usec;
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};
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struct timespec {
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long tv_sec;
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long tv_nsec;
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};
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#endif
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