gstreamer(video): use shared encoded artifact directory for decode inputs

Update Video_Encode_Decode to resolve encoded outputs through
the shared GStreamer artifact directory helper instead of using
the testcase-local logs path.

This allows decode runs to locate files produced by earlier
encode runs when LAVA executes encode and decode in separate
testcase workspaces.

Also log the resolved encoded artifact directory to improve
traceability in CI and LAVA logs.

Signed-off-by: Srikanth Muppandam <smuppand@qti.qualcomm.com>

Author: smuppand

Runner/suites/Multimedia/GSTreamer/Video/Video_Encode_Decode/run.sh

@@ -18,11 +18,6 @@ LOG_DIR="${SCRIPT_DIR}/logs"
 OUTDIR="$LOG_DIR/$TESTNAME"
 GST_LOG="$OUTDIR/gst.log"
 DMESG_DIR="$OUTDIR/dmesg"
-ENCODED_DIR="$OUTDIR/encoded"
-
-mkdir -p "$OUTDIR" "$DMESG_DIR" "$ENCODED_DIR" >/dev/null 2>&1 || true
-: >"$RES_FILE"
-: >"$GST_LOG"
 
 INIT_ENV=""
 SEARCH="$SCRIPT_DIR"
@@ -55,6 +50,25 @@ fi
 # shellcheck disable=SC1091
 [ -f "$TOOLS/lib_video.sh" ] && . "$TOOLS/lib_video.sh"
 
+# Use the shared encoded directory if supported; otherwise default to $OUTDIR/encoded.
+if command -v gstreamer_shared_encoded_dir >/dev/null 2>&1; then
+    ENCODED_DIR="$(gstreamer_shared_encoded_dir "$SCRIPT_DIR" "$OUTDIR")"
+else
+    ENCODED_DIR="$OUTDIR/encoded"
+fi
+
+if ! mkdir -p "$OUTDIR" "$DMESG_DIR" "$ENCODED_DIR"; then
+  log_error "Failed to create required directories:"
+  log_error "  OUTDIR=$OUTDIR"
+  log_error "  DMESG_DIR=$DMESG_DIR"
+  log_error "  ENCODED_DIR=$ENCODED_DIR"
+  echo "$TESTNAME FAIL" >"$RES_FILE" 2>/dev/null || true
+  exit 0
+fi
+
+: >"$RES_FILE"
+: >"$GST_LOG"
+
 result="FAIL"
 reason="unknown"
 pass_count=0
@@ -384,6 +398,7 @@ log_info "Resolutions: $resolutionList"
 log_info "Duration: ${duration}s, Framerate: ${framerate}fps"
 log_info "GST debug: GST_DEBUG=$gstDebugLevel"
 log_info "Logs: $OUTDIR"
+log_info "Encoded artifact dir: $ENCODED_DIR"
 log_info "VP9 clip URL: $clipUrl"
 if [ -n "$clipPath" ]; then
   log_info "VP9 clip local path: $clipPath"