Question on using appsink on android

[fatbringer]

i looked through the implementation of gstreamer and it seems like there is a function that i need named Gst.parse_launch_full as well as pipeline.getElementByName("appsink") as AppSink

however, i cant find it in the android implementation of gstreamer.
I looked into the c code and could only find these functions

/* List of implemented native methods */
static JNINativeMethod native_methods[] = {
        {"nativeInit", "()V", (void *) gst_native_init},
        {"nativeFinalize", "()V", (void *) gst_native_finalize},
        {"nativePlay", "()V", (void *) gst_native_play},
        {"nativePause", "()V", (void *) gst_native_pause},
        {"nativeSurfaceInit", "(Ljava/lang/Object;)V",
                (void *) gst_native_surface_init},
        {"nativeSurfaceFinalize", "()V", (void *) gst_native_surface_finalize},
        {"nativeClassInit", "()Z", (void *) gst_native_class_init},
        {"nativeGetGStreamerInfo", "()Ljava/lang/String;", (void *) gst_native_get_gstreamer_info},
        {"nativeSetPipeline", "(Ljava/lang/String;)V", (void *) gst_native_set_pipeline}
};

is there something else equivalent to ```Gst.parse_launch_full```` ?

my goal is to be able to capture individual frames from the video stream so that i can save screenshots (not of the whole screen), save the video,, and also perform object detection (which implies i need to be able to extract the bitmap)