primecorder.c

#include <libavutil/pixdesc.h>
#include <libavcodec/avcodec.h>
#include <libavutil/hwcontext_drm.h>
#include <libavutil/hwcontext.h>
#include <libavutil/buffer.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

static int device_open(AVBufferRef *ctx, const char *filename) {
    return av_hwdevice_ctx_create(&ctx, AV_HWDEVICE_TYPE_DRM, filename, NULL, 0);
}

    




int main() {
    AVBufferRef *hw_context = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DRM);
    
    printf("%d", device_open(hw_context, "/dev/dri/renderD128"));
}