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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "third_party/googletest/src/googletest/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 libaom_test {
const char kVP8Name[] = "WebM Project VP8";
const char kAV1Name[] = "AOMedia Project AV1 Decoder";
aom_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,
aom_codec_stream_info_t *stream_info) {
return aom_codec_peek_stream_info(
CodecInterface(), cxdata, static_cast<unsigned int>(size), stream_info);
}
aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
return DecodeFrame(cxdata, size, NULL);
}
aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,
void *user_priv) {
aom_codec_err_t res_dec;
InitOnce();
API_REGISTER_STATE_CHECK(
res_dec = aom_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;
}
bool Decoder::IsAV1() const {
const char *codec_name = GetDecoderName();
return strncmp(kAV1Name, codec_name, sizeof(kAV1Name) - 1) == 0;
}
void DecoderTest::HandlePeekResult(Decoder *const decoder,
CompressedVideoSource *video,
const aom_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 AOM_CODEC_OK on the first
* frame, which must be a keyframe. */
if (video->frame_number() == 0)
ASSERT_EQ(AOM_CODEC_OK, res_peek) << "Peek return failed: "
<< aom_codec_err_to_string(res_peek);
} else {
/* The Av1 implementation of PeekStream returns an error only if the
* data passed to it isn't a valid Av1 chunk. */
ASSERT_EQ(AOM_CODEC_OK, res_peek) << "Peek return failed: "
<< aom_codec_err_to_string(res_peek);
}
}
void DecoderTest::RunLoop(CompressedVideoSource *video,
const aom_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);
aom_codec_stream_info_t stream_info;
if (video->cxdata() != NULL) {
const aom_codec_err_t res_peek = decoder->PeekStream(
video->cxdata(), video->frame_size(), &stream_info);
HandlePeekResult(decoder, video, res_peek);
ASSERT_FALSE(::testing::Test::HasFailure());
aom_codec_err_t res_dec =
decoder->DecodeFrame(video->cxdata(), video->frame_size());
if (!HandleDecodeResult(res_dec, decoder)) break;
} else {
// Signal end of the file to the decoder.
const aom_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
ASSERT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
end_of_file = true;
}
DxDataIterator dec_iter = decoder->GetDxData();
const aom_image_t *img = NULL;
// Get decompressed data
while ((img = dec_iter.Next()))
DecompressedFrameHook(*img, video->frame_number());
}
delete decoder;
}
void DecoderTest::RunLoop(CompressedVideoSource *video) {
aom_codec_dec_cfg_t dec_cfg = aom_codec_dec_cfg_t();
RunLoop(video, dec_cfg);
}
void DecoderTest::set_cfg(const aom_codec_dec_cfg_t &dec_cfg) {
memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
}
void DecoderTest::set_flags(const aom_codec_flags_t flags) { flags_ = flags; }
} // namespace libaom_test
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