1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/codecs/vp8/libvpx_vp8_decoder.h b/third_party/libwebrtc/modules/video_coding/codecs/vp8/libvpx_vp8_decoder.h
new file mode 100644
index 0000000000..74f4dc7c89
--- /dev/null
+++ b/third_party/libwebrtc/modules/video_coding/codecs/vp8/libvpx_vp8_decoder.h
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_
+#define MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_
+
+#include <memory>
+
+#include "absl/types/optional.h"
+#include "api/video/encoded_image.h"
+#include "api/video_codecs/video_decoder.h"
+#include "common_video/include/video_frame_buffer_pool.h"
+#include "modules/video_coding/codecs/vp8/include/vp8.h"
+#include "modules/video_coding/include/video_codec_interface.h"
+#include "vpx/vp8dx.h"
+#include "vpx/vpx_decoder.h"
+
+namespace webrtc {
+
+class LibvpxVp8Decoder : public VideoDecoder {
+ public:
+  LibvpxVp8Decoder();
+  ~LibvpxVp8Decoder() override;
+
+  bool Configure(const Settings& settings) override;
+  int Decode(const EncodedImage& input_image,
+             int64_t /*render_time_ms*/) override;
+
+  // TODO(bugs.webrtc.org/15444): Remove once all subclasses have been migrated
+  // to expecting calls Decode without a missing_frames param.
+  int Decode(const EncodedImage& input_image,
+             bool missing_frames,
+             int64_t /*render_time_ms*/) override;
+
+  int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
+  int Release() override;
+
+  DecoderInfo GetDecoderInfo() const override;
+  const char* ImplementationName() const override;
+
+  struct DeblockParams {
+    DeblockParams() : max_level(6), degrade_qp(1), min_qp(0) {}
+    DeblockParams(int max_level, int degrade_qp, int min_qp)
+        : max_level(max_level), degrade_qp(degrade_qp), min_qp(min_qp) {}
+    int max_level;   // Deblocking strength: [0, 16].
+    int degrade_qp;  // If QP value is below, start lowering `max_level`.
+    int min_qp;      // If QP value is below, turn off deblocking.
+  };
+
+ private:
+  class QpSmoother;
+  int ReturnFrame(const vpx_image_t* img,
+                  uint32_t timeStamp,
+                  int qp,
+                  const webrtc::ColorSpace* explicit_color_space);
+  const bool use_postproc_;
+
+  VideoFrameBufferPool buffer_pool_;
+  DecodedImageCallback* decode_complete_callback_;
+  bool inited_;
+  vpx_codec_ctx_t* decoder_;
+  int last_frame_width_;
+  int last_frame_height_;
+  bool key_frame_required_;
+  const absl::optional<DeblockParams> deblock_params_;
+  const std::unique_ptr<QpSmoother> qp_smoother_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_