mirror of
https://github.com/gtxaspec/wz_mini_hacks.git
synced 2024-11-26 07:07:19 +00:00
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
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#define _GNU_SOURCE
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#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <fcntl.h>
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#include <linux/videodev2.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <pthread.h>
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struct frames_st {
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void *buf;
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size_t length;
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};
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typedef int (* framecb)(struct frames_st *);
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static int (*real_local_sdk_video_set_encode_frame_callback)(int ch, void *callback);
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static void *video_encode_cb = NULL;
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static int VideoCaptureEnable = 1;
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static uint32_t video_encode_capture(struct frames_st *frames) {
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static int firstEntry = 0;
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static int v4l2Fd = -1;
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if(!firstEntry) {
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firstEntry++;
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int err;
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const char *v4l2_device_path = "/dev/video1";
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fprintf(stderr,"Opening V4L2 device: %s \n", v4l2_device_path);
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v4l2Fd = open(v4l2_device_path, O_WRONLY, 0777);
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if(v4l2Fd < 0) fprintf(stderr,"Failed to open V4L2 device: %s\n", v4l2_device_path);
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struct v4l2_format vid_format;
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memset(&vid_format, 0, sizeof(vid_format));
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vid_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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vid_format.fmt.pix.width = 1920;
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vid_format.fmt.pix.height = 1080;
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vid_format.fmt.pix.pixelformat = V4L2_PIX_FMT_H264;
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vid_format.fmt.pix.sizeimage = 0;
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vid_format.fmt.pix.field = V4L2_FIELD_NONE;
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vid_format.fmt.pix.bytesperline = 0;
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vid_format.fmt.pix.colorspace = V4L2_PIX_FMT_YUV420;
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err = ioctl(v4l2Fd, VIDIOC_S_FMT, &vid_format);
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if(err < 0) fprintf(stderr,"Unable to set V4L2 device video format: %d\n", err);
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err = ioctl(v4l2Fd, VIDIOC_STREAMON, &vid_format);
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if(err < 0) fprintf(stderr,"Unable to perform VIDIOC_STREAMON: %d\n", err);
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}
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if( (v4l2Fd >= 0) && VideoCaptureEnable) {
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uint32_t *buf = frames->buf;
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int size = write(v4l2Fd, frames->buf, frames->length);
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if(size != frames->length) fprintf(stderr,"Stream write error: %s\n", size);
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}
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return ((framecb)video_encode_cb)(frames);
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}
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int local_sdk_video_set_encode_frame_callback(int ch, void *callback) {
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fprintf(stderr, "local_sdk_video_set_encode_frame_callback streamChId=%d, callback=0x%x\n", ch, callback);
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if(ch == 0) {
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video_encode_cb = callback;
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fprintf(stderr,"enc func injection save video_encode_cb=0x%x\n", video_encode_cb);
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callback = video_encode_capture;
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}
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return real_local_sdk_video_set_encode_frame_callback(ch, callback);
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}
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static void __attribute ((constructor)) video_callback_init(void) {
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real_local_sdk_video_set_encode_frame_callback = dlsym(dlopen("/system/lib/liblocalsdk.so", RTLD_LAZY), "local_sdk_video_set_encode_frame_callback");
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}
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