ref: dff4d376eaff3460e930711807ce865ff76aff3a
dir: /test/decode_test_driver.h/
/* * Copyright (c) 2012 The WebM 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 VPX_TEST_DECODE_TEST_DRIVER_H_ #define VPX_TEST_DECODE_TEST_DRIVER_H_ #include <cstring> #include "third_party/googletest/src/include/gtest/gtest.h" #include "./vpx_config.h" #include "vpx/vpx_decoder.h" namespace libvpx_test { class CodecFactory; class CompressedVideoSource; // Provides an object to handle decoding output class DxDataIterator { public: explicit DxDataIterator(vpx_codec_ctx_t *decoder) : decoder_(decoder), iter_(NULL) {} const vpx_image_t *Next() { return vpx_codec_get_frame(decoder_, &iter_); } private: vpx_codec_ctx_t *decoder_; vpx_codec_iter_t iter_; }; // Provides a simplified interface to manage one video decoding. // Similar to Encoder class, the exact services should be added // as more tests are added. class Decoder { public: explicit Decoder(vpx_codec_dec_cfg_t cfg) : cfg_(cfg), flags_(0), init_done_(false) { memset(&decoder_, 0, sizeof(decoder_)); } Decoder(vpx_codec_dec_cfg_t cfg, const vpx_codec_flags_t flag) : cfg_(cfg), flags_(flag), init_done_(false) { memset(&decoder_, 0, sizeof(decoder_)); } virtual ~Decoder() { vpx_codec_destroy(&decoder_); } vpx_codec_err_t PeekStream(const uint8_t *cxdata, size_t size, vpx_codec_stream_info_t *stream_info); vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size); vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size, void *user_priv); DxDataIterator GetDxData() { return DxDataIterator(&decoder_); } void Control(int ctrl_id, int arg) { Control(ctrl_id, arg, VPX_CODEC_OK); } void Control(int ctrl_id, const void *arg) { InitOnce(); const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg); ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError(); } void Control(int ctrl_id, int arg, vpx_codec_err_t expected_value) { InitOnce(); const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg); ASSERT_EQ(expected_value, res) << DecodeError(); } const char *DecodeError() { const char *detail = vpx_codec_error_detail(&decoder_); return detail ? detail : vpx_codec_error(&decoder_); } // Passes the external frame buffer information to libvpx. vpx_codec_err_t SetFrameBufferFunctions( vpx_get_frame_buffer_cb_fn_t cb_get, vpx_release_frame_buffer_cb_fn_t cb_release, void *user_priv) { InitOnce(); return vpx_codec_set_frame_buffer_functions(&decoder_, cb_get, cb_release, user_priv); } const char *GetDecoderName() const { return vpx_codec_iface_name(CodecInterface()); } bool IsVP8() const; vpx_codec_ctx_t *GetDecoder() { return &decoder_; } protected: virtual vpx_codec_iface_t *CodecInterface() const = 0; void InitOnce() { if (!init_done_) { const vpx_codec_err_t res = vpx_codec_dec_init(&decoder_, CodecInterface(), &cfg_, flags_); ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError(); init_done_ = true; } } vpx_codec_ctx_t decoder_; vpx_codec_dec_cfg_t cfg_; vpx_codec_flags_t flags_; bool init_done_; }; // Common test functionality for all Decoder tests. class DecoderTest { public: // Main decoding loop virtual void RunLoop(CompressedVideoSource *video); virtual void RunLoop(CompressedVideoSource *video, const vpx_codec_dec_cfg_t &dec_cfg); virtual void set_cfg(const vpx_codec_dec_cfg_t &dec_cfg); virtual void set_flags(const vpx_codec_flags_t flags); // Hook to be called before decompressing every frame. virtual void PreDecodeFrameHook(const CompressedVideoSource & /*video*/, Decoder * /*decoder*/) {} // Hook to be called to handle decode result. Return true to continue. virtual bool HandleDecodeResult(const vpx_codec_err_t res_dec, const CompressedVideoSource & /*video*/, Decoder *decoder) { EXPECT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError(); return VPX_CODEC_OK == res_dec; } // Hook to be called on every decompressed frame. virtual void DecompressedFrameHook(const vpx_image_t & /*img*/, const unsigned int /*frame_number*/) {} // Hook to be called on peek result virtual void HandlePeekResult(Decoder *const decoder, CompressedVideoSource *video, const vpx_codec_err_t res_peek); protected: explicit DecoderTest(const CodecFactory *codec) : codec_(codec), cfg_(), flags_(0) {} virtual ~DecoderTest() {} const CodecFactory *codec_; vpx_codec_dec_cfg_t cfg_; vpx_codec_flags_t flags_; }; } // namespace libvpx_test #endif // VPX_TEST_DECODE_TEST_DRIVER_H_