ref: c6a1ff223b80f77ae08c4a6fab2e11843c0a2e37
dir: /test/external_frame_buffer_test.cc/
/*
* Copyright (c) 2013 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 "test/codec_factory.h"
#include "test/decode_test_driver.h"
#include "test/ivf_video_source.h"
#include "test/md5_helper.h"
#include "test/test_vectors.h"
#include "test/util.h"
#include "test/webm_video_source.h"
namespace {
const int kVideoNameParam = 1;
const char kVP9TestFile[] = "vp90-2-02-size-lf-1920x1080.webm";
// Callback used by libvpx to request the application to allocate a frame
// buffer of at least |new_size| in bytes.
int realloc_vp9_frame_buffer(void *user_priv, size_t new_size,
vpx_codec_frame_buffer_t *fb) {
(void)user_priv;
if (fb == NULL)
return -1;
delete [] fb->data;
fb->data = new uint8_t[new_size];
fb->size = new_size;
return 0;
}
// Callback will not allocate data for frame buffer.
int zero_realloc_vp9_frame_buffer(void *user_priv, size_t new_size,
vpx_codec_frame_buffer_t *fb) {
(void)user_priv;
if (fb == NULL)
return -1;
delete [] fb->data;
fb->data = NULL;
fb->size = new_size;
return 0;
}
// Callback will allocate one less byte.
int one_less_byte_realloc_vp9_frame_buffer(void *user_priv, size_t new_size,
vpx_codec_frame_buffer_t *fb) {
(void)user_priv;
if (fb == NULL)
return -1;
delete [] fb->data;
const size_t error_size = new_size - 1;
fb->data = new uint8_t[error_size];
fb->size = error_size;
return 0;
}
// Class for testing passing in external frame buffers to libvpx.
class ExternalFrameBufferMD5Test
: public ::libvpx_test::DecoderTest,
public ::libvpx_test::CodecTestWithParam<const char*> {
protected:
ExternalFrameBufferMD5Test()
: DecoderTest(GET_PARAM(::libvpx_test::kCodecFactoryParam)),
md5_file_(NULL),
num_buffers_(0),
frame_buffers_(NULL) {}
virtual ~ExternalFrameBufferMD5Test() {
for (int i = 0; i < num_buffers_; ++i) {
delete [] frame_buffers_[i].data;
}
delete [] frame_buffers_;
if (md5_file_ != NULL)
fclose(md5_file_);
}
virtual void PreDecodeFrameHook(
const libvpx_test::CompressedVideoSource &video,
libvpx_test::Decoder *decoder) {
if (num_buffers_ > 0 && video.frame_number() == 0) {
// Have libvpx use frame buffers we create.
frame_buffers_ = new vpx_codec_frame_buffer_t[num_buffers_];
memset(frame_buffers_, 0, sizeof(frame_buffers_[0]) * num_buffers_);
ASSERT_EQ(VPX_CODEC_OK,
decoder->SetExternalFrameBuffers(
frame_buffers_, num_buffers_,
realloc_vp9_frame_buffer, NULL));
}
}
void OpenMD5File(const std::string &md5_file_name_) {
md5_file_ = libvpx_test::OpenTestDataFile(md5_file_name_);
ASSERT_TRUE(md5_file_ != NULL) << "Md5 file open failed. Filename: "
<< md5_file_name_;
}
virtual void DecompressedFrameHook(const vpx_image_t &img,
const unsigned int frame_number) {
ASSERT_TRUE(md5_file_ != NULL);
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: frame number = " << frame_number;
}
void set_num_buffers(int num_buffers) { num_buffers_ = num_buffers; }
int num_buffers() const { return num_buffers_; }
private:
FILE *md5_file_;
int num_buffers_;
vpx_codec_frame_buffer_t *frame_buffers_;
};
class ExternalFrameBufferTest : public ::testing::Test {
protected:
ExternalFrameBufferTest()
: video_(NULL),
decoder_(NULL),
num_buffers_(0),
frame_buffers_(NULL) {}
virtual void SetUp() {
video_ = new libvpx_test::WebMVideoSource(kVP9TestFile);
video_->Init();
video_->Begin();
vpx_codec_dec_cfg_t cfg = {0};
decoder_ = new libvpx_test::VP9Decoder(cfg, 0);
}
virtual void TearDown() {
for (int i = 0; i < num_buffers_; ++i) {
delete [] frame_buffers_[i].data;
}
delete [] frame_buffers_;
delete decoder_;
delete video_;
}
// Passes the external frame buffer information to libvpx.
vpx_codec_err_t SetExternalFrameBuffers(
int num_buffers,
vpx_realloc_frame_buffer_cb_fn_t cb) {
if (num_buffers > 0) {
num_buffers_ = num_buffers;
// Have libvpx use frame buffers we create.
frame_buffers_ = new vpx_codec_frame_buffer_t[num_buffers_];
memset(frame_buffers_, 0, sizeof(frame_buffers_[0]) * num_buffers_);
}
return decoder_->SetExternalFrameBuffers(frame_buffers_, num_buffers_,
cb, NULL);
}
// Pass Null frame buffer list to libvpx.
vpx_codec_err_t SetNullFrameBuffers(
int num_buffers,
vpx_realloc_frame_buffer_cb_fn_t cb) {
return decoder_->SetExternalFrameBuffers(NULL, num_buffers,
cb, NULL);
}
vpx_codec_err_t DecodeOneFrame() {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
if (res == VPX_CODEC_OK)
video_->Next();
return res;
}
vpx_codec_err_t DecodeRemainingFrames() {
for (; video_->cxdata(); video_->Next()) {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
if (res != VPX_CODEC_OK)
return res;
libvpx_test::DxDataIterator dec_iter = decoder_->GetDxData();
const vpx_image_t *img = NULL;
// Get decompressed data
while ((img = dec_iter.Next())) {
}
}
return VPX_CODEC_OK;
}
libvpx_test::WebMVideoSource *video_;
libvpx_test::VP9Decoder *decoder_;
int num_buffers_;
vpx_codec_frame_buffer_t *frame_buffers_;
};
// This test runs through the set of test vectors, and decodes them.
// Libvpx will call into the application to allocate a frame buffer when
// needed. The md5 checksums are computed for each frame in the video file.
// If md5 checksums match the correct md5 data, then the test is passed.
// Otherwise, the test failed.
TEST_P(ExternalFrameBufferMD5Test, ExtFBMD5Match) {
const std::string filename = GET_PARAM(kVideoNameParam);
libvpx_test::CompressedVideoSource *video = NULL;
// Number of buffers equals number of possible reference buffers(8), plus
// one working buffer, plus four jitter buffers.
const int num_buffers = 13;
set_num_buffers(num_buffers);
// Tell compiler we are not using kVP8TestVectors.
(void)libvpx_test::kVP8TestVectors;
// Open compressed video file.
if (filename.substr(filename.length() - 3, 3) == "ivf") {
video = new libvpx_test::IVFVideoSource(filename);
} else if (filename.substr(filename.length() - 4, 4) == "webm") {
video = new libvpx_test::WebMVideoSource(filename);
}
video->Init();
// Construct md5 file name.
const std::string md5_filename = filename + ".md5";
OpenMD5File(md5_filename);
// Decode frame, and check the md5 matching.
ASSERT_NO_FATAL_FAILURE(RunLoop(video));
delete video;
}
TEST_F(ExternalFrameBufferTest, EightFrameBuffers) {
// Minimum number of reference buffers for VP9 is 8.
const int num_buffers = 8;
ASSERT_EQ(VPX_CODEC_OK,
SetExternalFrameBuffers(num_buffers, realloc_vp9_frame_buffer));
ASSERT_EQ(VPX_CODEC_OK, DecodeRemainingFrames());
}
TEST_F(ExternalFrameBufferTest, EightJitterBuffers) {
// Number of buffers equals number of possible reference buffers(8), plus
// one working buffer, plus eight jitter buffers.
const int num_buffers = 17;
ASSERT_EQ(VPX_CODEC_OK,
SetExternalFrameBuffers(num_buffers, realloc_vp9_frame_buffer));
ASSERT_EQ(VPX_CODEC_OK, DecodeRemainingFrames());
}
TEST_F(ExternalFrameBufferTest, NotEnoughBuffers) {
// Minimum number of reference buffers for VP9 is 8.
const int num_buffers = 7;
ASSERT_EQ(VPX_CODEC_INVALID_PARAM,
SetExternalFrameBuffers(num_buffers, realloc_vp9_frame_buffer));
}
TEST_F(ExternalFrameBufferTest, NullFrameBufferList) {
// Number of buffers equals number of possible reference buffers(8), plus
// one working buffer, plus four jitter buffers.
const int num_buffers = 13;
ASSERT_EQ(VPX_CODEC_INVALID_PARAM,
SetNullFrameBuffers(num_buffers, realloc_vp9_frame_buffer));
}
TEST_F(ExternalFrameBufferTest, NullRealloc) {
// Number of buffers equals number of possible reference buffers(8), plus
// one working buffer, plus four jitter buffers.
const int num_buffers = 13;
ASSERT_EQ(VPX_CODEC_OK,
SetExternalFrameBuffers(num_buffers,
zero_realloc_vp9_frame_buffer));
ASSERT_EQ(VPX_CODEC_MEM_ERROR, DecodeOneFrame());
}
TEST_F(ExternalFrameBufferTest, ReallocOneLessByte) {
// Number of buffers equals number of possible reference buffers(8), plus
// one working buffer, plus four jitter buffers.
const int num_buffers = 13;
ASSERT_EQ(VPX_CODEC_OK,
SetExternalFrameBuffers(num_buffers,
one_less_byte_realloc_vp9_frame_buffer));
ASSERT_EQ(VPX_CODEC_MEM_ERROR, DecodeOneFrame());
}
VP9_INSTANTIATE_TEST_CASE(ExternalFrameBufferMD5Test,
::testing::ValuesIn(libvpx_test::kVP9TestVectors));
} // namespace