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/*
* Copyright (c) 2014 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 <string>
#include "./vpx_config.h"
#include "test/codec_factory.h"
#include "test/decode_test_driver.h"
#include "test/md5_helper.h"
#include "test/util.h"
#if CONFIG_WEBM_IO
#include "test/webm_video_source.h"
#endif
namespace {
#if CONFIG_WEBM_IO
const int kLegacyByteAlignment = 0;
const int kLegacyYPlaneByteAlignment = 32;
const int kNumPlanesToCheck = 3;
const char kVP9TestFile[] = "vp90-2-02-size-lf-1920x1080.webm";
const char kVP9Md5File[] = "vp90-2-02-size-lf-1920x1080.webm.md5";
struct ByteAlignmentTestParam {
int byte_alignment;
vpx_codec_err_t expected_value;
bool decode_remaining;
};
const ByteAlignmentTestParam kBaTestParams[] = {
{ kLegacyByteAlignment, VPX_CODEC_OK, true },
{ 32, VPX_CODEC_OK, true },
{ 64, VPX_CODEC_OK, true },
{ 128, VPX_CODEC_OK, true },
{ 256, VPX_CODEC_OK, true },
{ 512, VPX_CODEC_OK, true },
{ 1024, VPX_CODEC_OK, true },
{ 1, VPX_CODEC_INVALID_PARAM, false },
{ -2, VPX_CODEC_INVALID_PARAM, false },
{ 4, VPX_CODEC_INVALID_PARAM, false },
{ 16, VPX_CODEC_INVALID_PARAM, false },
{ 255, VPX_CODEC_INVALID_PARAM, false },
{ 2048, VPX_CODEC_INVALID_PARAM, false },
};
// Class for testing byte alignment of reference buffers.
class ByteAlignmentTest
: public ::testing::TestWithParam<ByteAlignmentTestParam> {
protected:
ByteAlignmentTest()
: video_(nullptr), decoder_(nullptr), md5_file_(nullptr) {}
void SetUp() override {
video_ = new libvpx_test::WebMVideoSource(kVP9TestFile);
ASSERT_NE(video_, nullptr);
video_->Init();
video_->Begin();
const vpx_codec_dec_cfg_t cfg = vpx_codec_dec_cfg_t();
decoder_ = new libvpx_test::VP9Decoder(cfg, 0);
ASSERT_NE(decoder_, nullptr);
OpenMd5File(kVP9Md5File);
}
void TearDown() override {
if (md5_file_ != nullptr) fclose(md5_file_);
delete decoder_;
delete video_;
}
void SetByteAlignment(int byte_alignment, vpx_codec_err_t expected_value) {
decoder_->Control(VP9_SET_BYTE_ALIGNMENT, byte_alignment, expected_value);
}
vpx_codec_err_t DecodeOneFrame(int byte_alignment_to_check) {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
CheckDecodedFrames(byte_alignment_to_check);
if (res == VPX_CODEC_OK) video_->Next();
return res;
}
vpx_codec_err_t DecodeRemainingFrames(int byte_alignment_to_check) {
for (; video_->cxdata() != nullptr; video_->Next()) {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
if (res != VPX_CODEC_OK) return res;
CheckDecodedFrames(byte_alignment_to_check);
}
return VPX_CODEC_OK;
}
private:
// Check if |data| is aligned to |byte_alignment_to_check|.
// |byte_alignment_to_check| must be a power of 2.
void CheckByteAlignment(const uint8_t *data, int byte_alignment_to_check) {
ASSERT_EQ(0u, reinterpret_cast<size_t>(data) % byte_alignment_to_check);
}
// Iterate through the planes of the decoded frames and check for
// alignment based off |byte_alignment_to_check|.
void CheckDecodedFrames(int byte_alignment_to_check) {
libvpx_test::DxDataIterator dec_iter = decoder_->GetDxData();
const vpx_image_t *img;
// Get decompressed data
while ((img = dec_iter.Next()) != nullptr) {
if (byte_alignment_to_check == kLegacyByteAlignment) {
CheckByteAlignment(img->planes[0], kLegacyYPlaneByteAlignment);
} else {
for (int i = 0; i < kNumPlanesToCheck; ++i) {
CheckByteAlignment(img->planes[i], byte_alignment_to_check);
}
}
CheckMd5(*img);
}
}
// TODO(fgalligan): Move the MD5 testing code into another class.
void OpenMd5File(const std::string &md5_file_name_) {
md5_file_ = libvpx_test::OpenTestDataFile(md5_file_name_);
ASSERT_NE(md5_file_, nullptr)
<< "MD5 file open failed. Filename: " << md5_file_name_;
}
void CheckMd5(const vpx_image_t &img) {
ASSERT_NE(md5_file_, nullptr);
char expected_md5[33];
char junk[128];
// Read correct md5 checksums.
const int res = fscanf(md5_file_, "%s %s", expected_md5, junk);
ASSERT_NE(EOF, res) << "Read md5 data failed";
expected_md5[32] = '\0';
::libvpx_test::MD5 md5_res;
md5_res.Add(&img);
const char *const actual_md5 = md5_res.Get();
// Check md5 match.
ASSERT_STREQ(expected_md5, actual_md5) << "MD5 checksums don't match";
}
libvpx_test::WebMVideoSource *video_;
libvpx_test::VP9Decoder *decoder_;
FILE *md5_file_;
};
TEST_F(ByteAlignmentTest, SwitchByteAlignment) {
const int num_elements = 14;
const int byte_alignments[] = { 0, 32, 64, 128, 256, 512, 1024,
0, 1024, 32, 512, 64, 256, 128 };
for (int i = 0; i < num_elements; ++i) {
SetByteAlignment(byte_alignments[i], VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, DecodeOneFrame(byte_alignments[i]));
}
SetByteAlignment(byte_alignments[0], VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, DecodeRemainingFrames(byte_alignments[0]));
}
TEST_P(ByteAlignmentTest, TestAlignment) {
const ByteAlignmentTestParam t = GetParam();
SetByteAlignment(t.byte_alignment, t.expected_value);
if (t.decode_remaining) {
ASSERT_EQ(VPX_CODEC_OK, DecodeRemainingFrames(t.byte_alignment));
}
}
INSTANTIATE_TEST_SUITE_P(Alignments, ByteAlignmentTest,
::testing::ValuesIn(kBaTestParams));
#endif // CONFIG_WEBM_IO
} // namespace
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