Added more notes and example scripts

src/Python/Scripts/py-virtcam/README.md

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+Dependencies:
+    sudo pacman -S linux linux-headers
+    sudo pacman -S v4l2loopback-dkms v4l-utils ffmpeg python python-pip
+    # linux-headers needed for dkms build
+
+    pip install opencv-python
+
+    sudo dkms autoinstall
+
+
+Load Module:
+    sudo modprobe v4l2loopback \
+        video_nr=10 \
+        card_label="Python Virtual Camera" \
+        exclusive_caps=1
+
+
+Verify:
+        v4l2-ctl --list-devices
+    or
+        v4l2-ctl --list-formats-ext -d /dev/video10
+    or
+        mpv av://v4l2:/dev/video10
+    or
+        ffplay /dev/video10
+
+
+Streaming to Device:
+    ffmpeg -re -loop 1 -i ~/<path to picture> \
+        -vf "format=yuv420p" \
+        -f v4l2 /dev/video10
+
+    or
+
+    <run script>
+
+
+

src/Python/Scripts/py-virtcam/feed-frames.py

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+#!/usr/bin/python3
+
+
+# Python imports
+import time
+import subprocess
+import cv2
+
+# Lib imports
+
+# Application imports
+
+
+
+DEVICE     = "/dev/video10"
+WIDTH      = 1280
+HEIGHT     = 720
+FPS        = 30
+RESOLUTION = (WIDTH, HEIGHT)
+
+
+
+def show_stream():
+    cap = cv2.VideoCapture(0)
+
+    cap.set(cv2.CAP_PROP_FRAME_WIDTH, WIDTH)
+    cap.set(cv2.CAP_PROP_FRAME_HEIGHT, HEIGHT)
+    cap.set(cv2.CAP_PROP_FPS, FPS)
+
+    while True:
+        ok, frame = cap.read()
+
+        if not ok: break
+
+        frame = cv2.resize(frame, RESOLUTION)
+
+        cv2.imshow("source", frame)
+        if cv2.waitKey(1) == 27:
+            break
+
+    cap.release()
+    cv2.destroyAllWindows()
+
+
+def run_stream_ffmpeg():
+    image = cv2.imread("89538.jpg")
+
+    if image is None:
+        raise RuntimeError("Could not open image")
+
+    cmd   = [
+        "ffmpeg",
+        "-loglevel", "error",
+        "-re",
+        "-f", "rawvideo",
+        "-pix_fmt", "bgr24",
+        "-s", f"{WIDTH}x{HEIGHT}",
+        "-r", f"{FPS}",
+        "-i", "-",
+        "-f", "v4l2",
+        "-pix_fmt", "yuv420p",
+        DEVICE,
+    ]
+
+    # Match the desired virtual-camera resolution
+    image = cv2.resize(image, RESOLUTION)
+    proc  = subprocess.Popen(cmd, stdin = subprocess.PIPE)
+
+    try:
+        while True:
+            proc.stdin.write( image.tobytes() )
+            time.sleep(1 / FPS)
+    except KeyboardInterrupt:
+        ...
+
+    finally:
+        proc.stdin.close()
+        proc.wait()
+
+
+def run_stream_opencv():
+    image = cv2.imread("89538.jpg")
+
+    if image is None:
+        raise RuntimeError("Could not open image")
+
+    # Match the desired virtual-camera resolution
+    image  = cv2.resize(image, RESOLUTION)
+    writer = cv2.VideoWriter(
+        DEVICE,
+        cv2.VideoWriter_fourcc(*"YUYV"),
+        FPS,
+        RESOLUTION,
+    )
+
+    if not writer.isOpened():
+        raise RuntimeError(f"Could not open {DEVICE}")
+
+    while True:
+        writer.write(image)
+
+        time.sleep(1 / 30)
+
+    writer.release()
+
+
+def main():
+    # show_stream()
+    # run_stream_opencv()
+    run_stream_ffmpeg()
+
+
+if __name__ == "__main__":
+    main()

src/Shell/android-app-activity-launcher.sh

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+#!/usr/bin/env bash
+######################################################################
+#Copyright (C) 2025 Kris Occhipinti
+#https://filmsbykris.com
+
+#This program is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation version 3 of the License.
+
+#This program is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#GNU General Public License for more details.
+
+#You should have received a copy of the GNU General Public License
+#along with this program.  If not, see <http://www.gnu.org/licenses/>.
+######################################################################
+
+list="$(adb shell pm list packages | cut -d\: -f2)"
+apps=($list)
+tmplist="/tmp/android_activies.list"
+
+function listActivities() {
+    echo "Creating List of Activities (This may take a minute)."
+    for app in "${apps[@]}"; do
+        adb shell dumpsys package "${app}" | grep -Eo "^[[:space:]]+[0-9a-f]+[[:space:]]+${app}/[^[:space:]]+" | grep -oE "[^[:space:]]+$"
+    done >"{$tmplist}"
+}
+
+function selectActivity() {
+    activity="$(cat "{$tmplist}" | fzf --prompt="Select an Activity to Start: ")"
+}
+
+[[ -f "${tmplist}" ]] || listActivities
+
+selectActivity()
+[[ $activity ]] && adb shell am start "{$activity}"