зеркало из https://github.com/mozilla/gecko-dev.git
124 строки
3.5 KiB
C++
124 строки
3.5 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
#ifndef TEST_Y4M_VIDEO_SOURCE_H_
|
|
#define TEST_Y4M_VIDEO_SOURCE_H_
|
|
#include <algorithm>
|
|
#include <string>
|
|
|
|
#include "test/video_source.h"
|
|
#include "./y4minput.h"
|
|
|
|
namespace libaom_test {
|
|
|
|
// This class extends VideoSource to allow parsing of raw yv12
|
|
// so that we can do actual file encodes.
|
|
class Y4mVideoSource : public VideoSource {
|
|
public:
|
|
Y4mVideoSource(const std::string &file_name, unsigned int start, int limit)
|
|
: file_name_(file_name), input_file_(NULL), img_(new aom_image_t()),
|
|
start_(start), limit_(limit), frame_(0), framerate_numerator_(0),
|
|
framerate_denominator_(0), y4m_() {}
|
|
|
|
virtual ~Y4mVideoSource() {
|
|
aom_img_free(img_.get());
|
|
CloseSource();
|
|
}
|
|
|
|
virtual void OpenSource() {
|
|
CloseSource();
|
|
input_file_ = OpenTestDataFile(file_name_);
|
|
ASSERT_TRUE(input_file_ != NULL) << "Input file open failed. Filename: "
|
|
<< file_name_;
|
|
}
|
|
|
|
virtual void ReadSourceToStart() {
|
|
ASSERT_TRUE(input_file_ != NULL);
|
|
ASSERT_FALSE(y4m_input_open(&y4m_, input_file_, NULL, 0, 0));
|
|
framerate_numerator_ = y4m_.fps_n;
|
|
framerate_denominator_ = y4m_.fps_d;
|
|
frame_ = 0;
|
|
for (unsigned int i = 0; i < start_; i++) {
|
|
Next();
|
|
}
|
|
FillFrame();
|
|
}
|
|
|
|
virtual void Begin() {
|
|
OpenSource();
|
|
ReadSourceToStart();
|
|
}
|
|
|
|
virtual void Next() {
|
|
++frame_;
|
|
FillFrame();
|
|
}
|
|
|
|
virtual aom_image_t *img() const {
|
|
return (frame_ < limit_) ? img_.get() : NULL;
|
|
}
|
|
|
|
// Models a stream where Timebase = 1/FPS, so pts == frame.
|
|
virtual aom_codec_pts_t pts() const { return frame_; }
|
|
|
|
virtual unsigned long duration() const { return 1; }
|
|
|
|
virtual aom_rational_t timebase() const {
|
|
const aom_rational_t t = { framerate_denominator_, framerate_numerator_ };
|
|
return t;
|
|
}
|
|
|
|
virtual unsigned int frame() const { return frame_; }
|
|
|
|
virtual unsigned int limit() const { return limit_; }
|
|
|
|
virtual void FillFrame() {
|
|
ASSERT_TRUE(input_file_ != NULL);
|
|
// Read a frame from input_file.
|
|
y4m_input_fetch_frame(&y4m_, input_file_, img_.get());
|
|
}
|
|
|
|
// Swap buffers with another y4m source. This allows reading a new frame
|
|
// while keeping the old frame around. A whole Y4mSource is required and
|
|
// not just a aom_image_t because of how the y4m reader manipulates
|
|
// aom_image_t internals,
|
|
void SwapBuffers(Y4mVideoSource *other) {
|
|
std::swap(other->y4m_.dst_buf, y4m_.dst_buf);
|
|
aom_image_t *tmp;
|
|
tmp = other->img_.release();
|
|
other->img_.reset(img_.release());
|
|
img_.reset(tmp);
|
|
}
|
|
|
|
protected:
|
|
void CloseSource() {
|
|
y4m_input_close(&y4m_);
|
|
y4m_ = y4m_input();
|
|
if (input_file_ != NULL) {
|
|
fclose(input_file_);
|
|
input_file_ = NULL;
|
|
}
|
|
}
|
|
|
|
std::string file_name_;
|
|
FILE *input_file_;
|
|
testing::internal::scoped_ptr<aom_image_t> img_;
|
|
unsigned int start_;
|
|
unsigned int limit_;
|
|
unsigned int frame_;
|
|
int framerate_numerator_;
|
|
int framerate_denominator_;
|
|
y4m_input y4m_;
|
|
};
|
|
|
|
} // namespace libaom_test
|
|
|
|
#endif // TEST_Y4M_VIDEO_SOURCE_H_
|