Fix DrmRenderer not falling back to swframes if DRM PRIME is available

app/streaming/video/ffmpeg.h

@@ -30,7 +30,11 @@ public:
     virtual IFFmpegRenderer* getBackendRenderer();
 
 private:
-    bool completeInitialization(const AVCodec* decoder, PDECODER_PARAMETERS params, bool testFrame, bool useAlternateFrontend);
+    bool completeInitialization(const AVCodec* decoder,
+                                enum AVPixelFormat requiredFormat,
+                                PDECODER_PARAMETERS params,
+                                bool testFrame,
+                                bool useAlternateFrontend);
 
     void stringifyVideoStats(VIDEO_STATS& stats, char* output, int length);
 
@@ -45,6 +49,7 @@ private:
                                                 bool tryHwAccel);
 
     bool tryInitializeRenderer(const AVCodec* decoder,
+                               enum AVPixelFormat requiredFormat,
                                PDECODER_PARAMETERS params,
                                const AVCodecHWConfig* hwConfig,
                                std::function<IFFmpegRenderer*()> createRendererFunc);
@@ -65,6 +70,7 @@ private:
 
     AVPacket* m_Pkt;
     AVCodecContext* m_VideoDecoderCtx;
+    enum AVPixelFormat m_RequiredPixelFormat;
     QByteArray m_DecodeBuffer;
     const AVCodecHWConfig* m_HwDecodeCfg;
     IFFmpegRenderer* m_BackendRenderer;