[host1x] Improve FFmpeg error handling (#2643)

This improves the FFmpeg error handling.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2643
Co-authored-by: MaranBr <maranbr@outlook.com>
Co-committed-by: MaranBr <maranbr@outlook.com>

src/video_core/host1x/ffmpeg/ffmpeg.h

@@ -194,7 +194,7 @@ public:
 private:
     const Decoder& m_decoder;
     AVCodecContext* m_codec_context{};
-    std::shared_ptr<Frame> m_temp_frame{};
+    std::shared_ptr<Frame> m_final_frame{};
     bool m_decode_order{};
 };