/* *  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. */ #include "third_party/googletest/src/include/gtest/gtest.h" #include "test/codec_factory.h"#include "test/decode_test_driver.h"#include "test/register_state_check.h"#include "test/video_source.h" namespace libvpx_test { const char kVP8Name[] = "WebM Project VP8"; vpx_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,                                    vpx_codec_stream_info_t *stream_info) {  return vpx_codec_peek_stream_info(      CodecInterface(), cxdata, static_cast<unsigned int>(size), stream_info);} vpx_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {  return DecodeFrame(cxdata, size, NULL);} vpx_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,                                     void *user_priv) {  vpx_codec_err_t res_dec;  InitOnce();  API_REGISTER_STATE_CHECK(      res_dec = vpx_codec_decode(          &decoder_, cxdata, static_cast<unsigned int>(size), user_priv, 0));  return res_dec;} bool Decoder::IsVP8() const {  const char *codec_name = GetDecoderName();  return strncmp(kVP8Name, codec_name, sizeof(kVP8Name) - 1) == 0;} void DecoderTest::HandlePeekResult(Decoder *const decoder,                                   CompressedVideoSource *video,                                   const vpx_codec_err_t res_peek) {  const bool is_vp8 = decoder->IsVP8();  if (is_vp8) {    /* Vp8's implementation of PeekStream returns an error if the frame you     * pass it is not a keyframe, so we only expect VPX_CODEC_OK on the first     * frame, which must be a keyframe. */    if (video->frame_number() == 0) {      ASSERT_EQ(VPX_CODEC_OK, res_peek)          << "Peek return failed: " << vpx_codec_err_to_string(res_peek);    }  } else {    /* The Vp9 implementation of PeekStream returns an error only if the     * data passed to it isn't a valid Vp9 chunk. */    ASSERT_EQ(VPX_CODEC_OK, res_peek)        << "Peek return failed: " << vpx_codec_err_to_string(res_peek);  }} void DecoderTest::RunLoop(CompressedVideoSource *video,                          const vpx_codec_dec_cfg_t &dec_cfg) {  Decoder *const decoder = codec_->CreateDecoder(dec_cfg, flags_);  ASSERT_TRUE(decoder != NULL);  bool end_of_file = false;   // Decode frames.  for (video->Begin(); !::testing::Test::HasFailure() && !end_of_file;       video->Next()) {    PreDecodeFrameHook(*video, decoder);     vpx_codec_stream_info_t stream_info;    stream_info.sz = sizeof(stream_info);     if (video->cxdata() != NULL) {      const vpx_codec_err_t res_peek = decoder->PeekStream(          video->cxdata(), video->frame_size(), &stream_info);      HandlePeekResult(decoder, video, res_peek);      ASSERT_FALSE(::testing::Test::HasFailure());       vpx_codec_err_t res_dec =          decoder->DecodeFrame(video->cxdata(), video->frame_size());      if (!HandleDecodeResult(res_dec, *video, decoder)) break;    } else {      // Signal end of the file to the decoder.      const vpx_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);      ASSERT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();      end_of_file = true;    }     DxDataIterator dec_iter = decoder->GetDxData();    const vpx_image_t *img = NULL;     // Get decompressed data    while (!::testing::Test::HasFailure() && (img = dec_iter.Next())) {      DecompressedFrameHook(*img, video->frame_number());    }  }  delete decoder;} void DecoderTest::RunLoop(CompressedVideoSource *video) {  vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();  RunLoop(video, dec_cfg);} void DecoderTest::set_cfg(const vpx_codec_dec_cfg_t &dec_cfg) {  memcpy(&cfg_, &dec_cfg, sizeof(cfg_));} void DecoderTest::set_flags(const vpx_codec_flags_t flags) { flags_ = flags; } }  // namespace libvpx_test