Add support for deinterlaced videos playback

This is a follow up to #10254 to improve the playback of cut scenes in Layton's Mystery Journey.
It uses ffmpeg's yadif filter for deinterlacing.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/video_core/host1x/codecs/codec.h b/src/video_core/host1x/codecs/codec.h
index 0d45fb7fe..06fe00a4b 100644
--- a/src/video_core/host1x/codecs/codec.h
+++ b/src/video_core/host1x/codecs/codec.h
@@ -15,6 +15,7 @@ extern "C" {
 #pragma GCC diagnostic ignored "-Wconversion"
 #endif
 #include <libavcodec/avcodec.h>
+#include <libavfilter/avfilter.h>
 #if defined(__GNUC__) || defined(__clang__)
 #pragma GCC diagnostic pop
 #endif
@@ -61,17 +62,24 @@ public:
 private:
     void InitializeAvCodecContext();
 
+    void InitializeAvFilters(AVFrame* frame);
+
     void InitializeGpuDecoder();
 
     bool CreateGpuAvDevice();
 
     bool initialized{};
+    bool filters_initialized{};
     Host1x::NvdecCommon::VideoCodec current_codec{Host1x::NvdecCommon::VideoCodec::None};
 
     const AVCodec* av_codec{nullptr};
     AVCodecContext* av_codec_ctx{nullptr};
     AVBufferRef* av_gpu_decoder{nullptr};
 
+    AVFilterContext* av_filter_src_ctx{nullptr};
+    AVFilterContext* av_filter_sink_ctx{nullptr};
+    AVFilterGraph* av_filter_graph{nullptr};
+
     Host1x::Host1x& host1x;
     const Host1x::NvdecCommon::NvdecRegisters& state;
     std::unique_ptr<Decoder::H264> h264_decoder;