mirror of
https://github.com/sipeed/NanoKVM.git
synced 2026-11-09 17:44:43 -06:00
4b54fc4768
Use per-codec capture locks and encoder backpressure, simplify frame ownership, and follow HDMI input dimensions. Refresh prebuilt video libraries while preserving server-only builds and deployment instructions.
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#ifndef KVM_VISION_H_
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#define KVM_VISION_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define IMG_BUFFER_FULL -3
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#define IMG_VENC_ERROR -2
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#define IMG_NOT_EXIST -1
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#define IMG_MJPEG_TYPE 0
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#define IMG_H264_TYPE_IF 3
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#define IMG_H264_TYPE_PF 4
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typedef struct {
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uint8_t *data;
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uint32_t size;
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uint64_t timestamp;
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uint64_t token;
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uint8_t codec;
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} kvmv_frame_t;
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void kvmv_init(uint8_t debug_info);
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void kvmv_deinit(void);
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// type: 0 = MJPEG, 1 = H.264. A zero width/height follows the input size.
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// quality: MJPEG 50..100, H.264 500..10000 Kbps. fps: 1..60.
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// Returns -7 input error, -6 unsupported size, -5 busy, -4 reconfiguring,
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// -3 allocation failure, -2 encoder error, -1 no frame, 0 JPEG, 3 IDR,
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// 4 P-frame, or 5 unchanged JPEG. Release every successful frame once.
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int kvmv_read_img(uint16_t width, uint16_t height, uint8_t type,
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uint16_t quality, uint16_t fps, kvmv_frame_t *frame);
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// Frees the copied bytes and releases the encoder lease. Safe after shutdown.
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void kvmv_release_frame(kvmv_frame_t *frame);
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void kvmv_stop_stream(uint8_t type);
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void set_h264_gop(uint8_t gop);
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void set_frame_detact(uint8_t interval);
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uint8_t kvmv_hdmi_control(uint8_t enable);
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uint8_t kvmv_hdmi_signal_active(void);
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#ifdef __cplusplus
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}
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#endif
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#endif // KVM_VISION_H_
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