add ffmpeg for whisper

apps/llama/configs/config.yaml

@@ -248,6 +248,7 @@ models:
         -m /root/.cache/whisper/ggml-small.bin
         --request-path /v1/audio
         --inference-path /transcriptions
+        --convert
         --threads 6
         --no-gpu
 

apps/llama/deployment.yaml

@@ -31,6 +31,18 @@ spec:
               else
                 echo "whisper-small model already present, skipping download"
               fi
+              if [ ! -f /root/.cache/ffmpeg/ffmpeg ]; then
+                echo "Downloading static ffmpeg..."
+                mkdir -p /root/.cache/ffmpeg
+                apt-get update -qq && apt-get install -y --no-install-recommends xz-utils
+                curl -L -o /root/.cache/ffmpeg/ffmpeg.tar.xz \
+                  https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linux64-gpl.tar.xz
+                tar -xJf /root/.cache/ffmpeg/ffmpeg.tar.xz -C /root/.cache/ffmpeg --wildcards '*/ffmpeg' --strip-components=2
+                rm /root/.cache/ffmpeg/ffmpeg.tar.xz
+                chmod +x /root/.cache/ffmpeg/ffmpeg
+              else
+                echo "ffmpeg already present, skipping download"
+              fi
           volumeMounts:
             - name: models
               mountPath: /root/.cache
@@ -50,6 +62,9 @@ spec:
           volumeMounts:
             - name: models
               mountPath: /root/.cache
+            - name: models
+              mountPath: /usr/local/bin/ffmpeg
+              subPath: ffmpeg/ffmpeg
             - mountPath: /dev/kfd
               name: kfd
             - mountPath: /dev/dri