Added Multimedia Video and Display GStreamer test scripts

Runner/suites/Multimedia/GSTreamer/Display/Waylandsink_Playback/README.md

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+# Waylandsink_Playback (GStreamer) — Runner Test
+
+This directory contains the **Waylandsink_Playback** validation test for Qualcomm Linux Testkit runners.
+
+It validates **Wayland display** using **GStreamer waylandsink** with:
+- Weston/Wayland server connectivity checks
+- DRM display connectivity validation
+- Video playback using `waylandsink` element
+- Uses `videotestsrc` to generate test patterns
+
+The script is designed to be **CI/LAVA-friendly**:
+- Writes **PASS/FAIL/SKIP** into `Waylandsink_Playback.res`
+- Always **exits 0** (even on FAIL/SKIP)
+- Comprehensive Weston/Wayland environment detection
+- Automatic Weston startup if needed
+
+---
+
+## What this test does
+
+1. Sources framework utilities (`functestlib.sh`, `lib_gstreamer.sh`, `lib_display.sh`)
+2. **Display connectivity check**: Verifies connected DRM display via sysfs
+3. **Weston/Wayland server check**:
+   - Discovers existing Wayland socket
+   - Attempts to start Weston if no socket found
+   - Validates Wayland connection
+4. **waylandsink element check**: Verifies GStreamer waylandsink is available
+5. **Playback test**: Runs videotestsrc → videoconvert → waylandsink pipeline
+6. **Validation**: Checks playback duration and exit code
+
+---
+
+## PASS / FAIL / SKIP criteria
+
+### PASS
+- Playback completes successfully (exit code 0 or 143)
+- Elapsed time ≥ (duration - 2) seconds
+
+### FAIL
+- Playback exits with error code (not 0 or 143)
+- Playback exits too quickly (< duration - 2 seconds)
+
+### SKIP
+- Missing GStreamer tools (`gst-launch-1.0`, `gst-inspect-1.0`)
+- No connected DRM display found
+- No Wayland socket found (and cannot start Weston)
+- Wayland connection test fails
+- `waylandsink` element not available
+
+---
+
+## Dependencies
+
+### Required
+- `gst-launch-1.0`
+- `gst-inspect-1.0`
+- `videotestsrc` GStreamer plugin
+- `videoconvert` GStreamer plugin
+- `waylandsink` GStreamer plugin
+
+### Display/Wayland
+- Weston compositor (running or startable)
+- Connected DRM display
+- Wayland socket (`/run/user/*/wayland-*` or `/dev/socket/weston/wayland-*`)
+
+---
+
+## Usage
+
+```bash
+./run.sh [options]
+```
+
+### Options
+
+- `--duration <seconds>` - Playback duration (default: 10)
+- `--pattern <smpte|snow|ball|etc>` - videotestsrc pattern (default: smpte)
+- `--width <pixels>` - Video width (default: 1920)
+- `--height <pixels>` - Video height (default: 1080)
+- `--framerate <fps>` - Video framerate (default: 30)
+- `--gst-debug <level>` - GStreamer debug level 1-9 (default: 2)
+
+---
+
+## Examples
+
+```bash
+# Run default test (1920x1080 SMPTE for 30s)
+./run.sh
+
+# Run with 30 second duration
+./run.sh --duration 30
+
+# Run with ball pattern
+./run.sh --pattern ball
+
+# Run with custom resolution
+./run.sh --width 1280 --height 720
+```
+
+---
+
+## Pipeline
+
+```
+videotestsrc num-buffers=<N> pattern=<pattern>
+  ! video/x-raw,width=<W>,height=<H>,framerate=<FPS>/1
+  ! videoconvert
+  ! waylandsink
+```
+
+---
+
+## Logs
+
+```
+./Waylandsink_Playback.res
+./logs/Waylandsink_Playback/
+  gst.log      # GStreamer debug output
+  run.log      # Pipeline execution log
+```
+
+---
+
+## Troubleshooting
+
+### "SKIP: No connected DRM display found"
+- Check physical display connection
+- Verify DRM drivers loaded: `ls -l /dev/dri/`
+
+### "SKIP: No Wayland socket found"
+- Check if Weston is running: `pgrep weston`
+- Try starting Weston manually
+- Check `XDG_RUNTIME_DIR` and `WAYLAND_DISPLAY` environment variables
+
+### "SKIP: waylandsink element not available"
+- Install GStreamer Wayland plugin
+- Check: `gst-inspect-1.0 waylandsink`
+
+### "FAIL: Playback failed"
+- Check logs in `logs/Waylandsink_Playback/`
+- Increase debug level: `./run.sh --gst-debug 5`
+- Verify Weston is running properly
+
+---
+
+## LAVA Environment Variables
+
+- `VIDEO_DURATION` - Playback duration
+- `VIDEO_PATTERN` - videotestsrc pattern
+- `VIDEO_WIDTH` - Video width
+- `VIDEO_HEIGHT` - Video height
+- `VIDEO_FRAMERATE` - Video framerate
+- `VIDEO_GST_DEBUG` - GStreamer debug level
+- `RUNTIMESEC` - Alternative to VIDEO_DURATION

Runner/suites/Multimedia/GSTreamer/Display/Waylandsink_Playback/Waylandsink_Playback.yaml

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+metadata:
+  name: gstreamer-waylandsink-playback
+  format: "Lava-Test Test Definition 1.0"
+  description: >
+    GStreamer waylandsink playback validation with Weston/Wayland server checks
+    on Qualcomm Linux platforms. Uses videotestsrc to generate test patterns
+    and displays them via waylandsink. Validates display connectivity and
+    Wayland compositor functionality.
+  os:
+    - linux
+  scope:
+    - functional
+
+params:
+  # Video resolution (WIDTHxHEIGHT)
+  VIDEO_RESOLUTION: "1920x1080"
+
+  # Test pattern for videotestsrc
+  VIDEO_PATTERN: "smpte" # smpte|snow|black|white|red|green|blue|checkers-1|checkers-2
+
+  # Playback duration in seconds
+  PLAYBACK_DURATION: "30"
+
+  # Frame rate
+  FRAMERATE: "30"
+
+  # GStreamer debug level
+  VIDEO_GST_DEBUG: "2" # 1-9
+
+run:
+  steps:
+    - REPO_PATH="$PWD"
+
+    # Navigate to test directory
+    - cd Runner/suites/Multimedia/GSTreamer/Display/Waylandsink_Playback/
+
+    # Build CLI args only when params are non-empty
+    - |
+      CMD="./run.sh"
+
+      [ -n "${VIDEO_RESOLUTION}" ] && CMD="${CMD} --resolution ${VIDEO_RESOLUTION}"
+      [ -n "${VIDEO_PATTERN}" ] && CMD="${CMD} --pattern ${VIDEO_PATTERN}"
+      [ -n "${PLAYBACK_DURATION}" ] && CMD="${CMD} --duration ${PLAYBACK_DURATION}"
+      [ -n "${FRAMERATE}" ] && CMD="${CMD} --framerate ${FRAMERATE}"
+      [ -n "${VIDEO_GST_DEBUG}" ] && CMD="${CMD} --gst-debug ${VIDEO_GST_DEBUG}"
+
+      echo "[LAVA] Running: ${CMD}"
+      sh -c "${CMD}" || true
+
+    # Send result to LAVA
+    - "${REPO_PATH}/Runner/utils/send-to-lava.sh Waylandsink_Playback.res || true"