| /* |
| * 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, |
| 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 propagation_cnt_; |
| 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_; |
| |
| // Decoder should produce this format if possible. |
| const VideoFrameBuffer::Type preferred_output_format_; |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_ |