/* * 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. */#ifndef VPX_TEST_VIDEO_SOURCE_H_#define VPX_TEST_VIDEO_SOURCE_H_#if defined(_WIN32)#undef NOMINMAX#define NOMINMAX#ifndef WIN32_LEAN_AND_MEAN#define WIN32_LEAN_AND_MEAN#endif#include <windows.h>#endif#include <cstdio>#include <cstdlib>#include <string>#include "test/acm_random.h"#include "vpx/vpx_encoder.h"namespace libvpx_test {// Helper macros to ensure LIBVPX_TEST_DATA_PATH is a quoted string.// These are undefined right below GetDataPath// NOTE: LIBVPX_TEST_DATA_PATH MUST NOT be a quoted string before// Stringification or the GetDataPath will fail at runtime#define TO_STRING(S) #S#define STRINGIFY(S) TO_STRING(S)// A simple function to encapsulate cross platform retrieval of test data pathstatic std::string GetDataPath() { const char *const data_path = getenv("LIBVPX_TEST_DATA_PATH"); if (data_path == NULL) {#ifdef LIBVPX_TEST_DATA_PATH // In some environments, we cannot set environment variables // Instead, we set the data path by using a preprocessor symbol // which can be set from make files return STRINGIFY(LIBVPX_TEST_DATA_PATH);#else return ".";#endif } return data_path;}// Undefining stringification macros because they are not used elsewhere#undef TO_STRING#undef STRINGIFYinline FILE *OpenTestDataFile(const std::string &file_name) { const std::string path_to_source = GetDataPath() + "/" + file_name; return fopen(path_to_source.c_str(), "rb");}static FILE *GetTempOutFile(std::string *file_name) { file_name->clear();#if defined(_WIN32) char fname[MAX_PATH]; char tmppath[MAX_PATH]; if (GetTempPathA(MAX_PATH, tmppath)) { // Assume for now that the filename generated is unique per process if (GetTempFileNameA(tmppath, "lvx", 0, fname)) { file_name->assign(fname); return fopen(fname, "wb+"); } } return NULL;#else return tmpfile();#endif}class TempOutFile { public: TempOutFile() { file_ = GetTempOutFile(&file_name_); } ~TempOutFile() { CloseFile(); if (!file_name_.empty()) { EXPECT_EQ(0, remove(file_name_.c_str())); } } FILE *file() { return file_; } const std::string &file_name() { return file_name_; } protected: void CloseFile() { if (file_) { fclose(file_); file_ = NULL; } } FILE *file_; std::string file_name_;};// Abstract base class for test video sources, which provide a stream of// vpx_image_t images with associated timestamps and duration.class VideoSource { public: virtual ~VideoSource() {} // Prepare the stream for reading, rewind/open as necessary. virtual void Begin() = 0; // Advance the cursor to the next frame virtual void Next() = 0; // Get the current video frame, or NULL on End-Of-Stream. virtual vpx_image_t *img() const = 0; // Get the presentation timestamp of the current frame. virtual vpx_codec_pts_t pts() const = 0; // Get the current frame's duration virtual unsigned long duration() const = 0; // Get the timebase for the stream virtual vpx_rational_t timebase() const = 0; // Get the current frame counter, starting at 0. virtual unsigned int frame() const = 0; // Get the current file limit. virtual unsigned int limit() const = 0;};class DummyVideoSource : public VideoSource { public: DummyVideoSource() : img_(NULL), limit_(100), width_(80), height_(64), format_(VPX_IMG_FMT_I420) { ReallocImage(); } virtual ~DummyVideoSource() { vpx_img_free(img_); } virtual void Begin() { frame_ = 0; FillFrame(); } virtual void Next() { ++frame_; FillFrame(); } virtual vpx_image_t *img() const { return (frame_ < limit_) ? img_ : NULL; } // Models a stream where Timebase = 1/FPS, so pts == frame. virtual vpx_codec_pts_t pts() const { return frame_; } virtual unsigned long duration() const { return 1; } virtual vpx_rational_t timebase() const { const vpx_rational_t t = { 1, 30 }; return t; } virtual unsigned int frame() const { return frame_; } virtual unsigned int limit() const { return limit_; } void set_limit(unsigned int limit) { limit_ = limit; } void SetSize(unsigned int width, unsigned int height) { if (width != width_ || height != height_) { width_ = width; height_ = height; ReallocImage(); } } void SetImageFormat(vpx_img_fmt_t format) { if (format_ != format) { format_ = format; ReallocImage(); } } protected: virtual void FillFrame() { if (img_) memset(img_->img_data, 0, raw_sz_); } void ReallocImage() { vpx_img_free(img_); img_ = vpx_img_alloc(NULL, format_, width_, height_, 32); raw_sz_ = ((img_->w + 31) & ~31) * img_->h * img_->bps / 8; } vpx_image_t *img_; size_t raw_sz_; unsigned int limit_; unsigned int frame_; unsigned int width_; unsigned int height_; vpx_img_fmt_t format_;};class RandomVideoSource : public DummyVideoSource { public: RandomVideoSource(int seed = ACMRandom::DeterministicSeed()) : rnd_(seed), seed_(seed) {} protected: // Reset the RNG to get a matching stream for the second pass virtual void Begin() { frame_ = 0; rnd_.Reset(seed_); FillFrame(); } // 15 frames of noise, followed by 15 static frames. Reset to 0 rather // than holding previous frames to encourage keyframes to be thrown. virtual void FillFrame() { if (img_) { if (frame_ % 30 < 15) { for (size_t i = 0; i < raw_sz_; ++i) img_->img_data[i] = rnd_.Rand8(); } else { memset(img_->img_data, 0, raw_sz_); } } } ACMRandom rnd_; int seed_;};// Abstract base class for test video sources, which provide a stream of// decompressed images to the decoder.class CompressedVideoSource { public: virtual ~CompressedVideoSource() {} virtual void Init() = 0; // Prepare the stream for reading, rewind/open as necessary. virtual void Begin() = 0; // Advance the cursor to the next frame virtual void Next() = 0; virtual const uint8_t *cxdata() const = 0; virtual size_t frame_size() const = 0; virtual unsigned int frame_number() const = 0;};} // namespace libvpx_test#endif // VPX_TEST_VIDEO_SOURCE_H_
/*
* 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.
*/
#ifndef VPX_TEST_VIDEO_SOURCE_H_
#define VPX_TEST_VIDEO_SOURCE_H_
#if defined(_WIN32)
#undef NOMINMAX
#define NOMINMAX
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#include <cstdio>
#include <cstdlib>
#include <string>
#include "test/acm_random.h"
#include "vpx/vpx_encoder.h"
namespace libvpx_test {
// Helper macros to ensure LIBVPX_TEST_DATA_PATH is a quoted string.
// These are undefined right below GetDataPath
// NOTE: LIBVPX_TEST_DATA_PATH MUST NOT be a quoted string before
// Stringification or the GetDataPath will fail at runtime
#define TO_STRING(S) #S
#define STRINGIFY(S) TO_STRING(S)
// A simple function to encapsulate cross platform retrieval of test data path
static std::string GetDataPath() {
const char *const data_path = getenv("LIBVPX_TEST_DATA_PATH");
if (data_path == NULL) {
#ifdef LIBVPX_TEST_DATA_PATH
// In some environments, we cannot set environment variables
// Instead, we set the data path by using a preprocessor symbol
// which can be set from make files
return STRINGIFY(LIBVPX_TEST_DATA_PATH);
#else
return ".";
#endif
}
return data_path;
}
// Undefining stringification macros because they are not used elsewhere
#undef TO_STRING
#undef STRINGIFY
inline FILE *OpenTestDataFile(const std::string &file_name) {
const std::string path_to_source = GetDataPath() + "/" + file_name;
return fopen(path_to_source.c_str(), "rb");
}
static FILE *GetTempOutFile(std::string *file_name) {
file_name->clear();
#if defined(_WIN32)
char fname[MAX_PATH];
char tmppath[MAX_PATH];
if (GetTempPathA(MAX_PATH, tmppath)) {
// Assume for now that the filename generated is unique per process
if (GetTempFileNameA(tmppath, "lvx", 0, fname)) {
file_name->assign(fname);
return fopen(fname, "wb+");
}
}
return NULL;
#else
return tmpfile();
#endif
}
class TempOutFile {
public:
TempOutFile() { file_ = GetTempOutFile(&file_name_); }
~TempOutFile() {
CloseFile();
if (!file_name_.empty()) {
EXPECT_EQ(0, remove(file_name_.c_str()));
}
}
FILE *file() { return file_; }
const std::string &file_name() { return file_name_; }
protected:
void CloseFile() {
if (file_) {
fclose(file_);
file_ = NULL;
}
}
FILE *file_;
std::string file_name_;
};
// Abstract base class for test video sources, which provide a stream of
// vpx_image_t images with associated timestamps and duration.
class VideoSource {
public:
virtual ~VideoSource() {}
// Prepare the stream for reading, rewind/open as necessary.
virtual void Begin() = 0;
// Advance the cursor to the next frame
virtual void Next() = 0;
// Get the current video frame, or NULL on End-Of-Stream.
virtual vpx_image_t *img() const = 0;
// Get the presentation timestamp of the current frame.
virtual vpx_codec_pts_t pts() const = 0;
// Get the current frame's duration
virtual unsigned long duration() const = 0;
// Get the timebase for the stream
virtual vpx_rational_t timebase() const = 0;
// Get the current frame counter, starting at 0.
virtual unsigned int frame() const = 0;
// Get the current file limit.
virtual unsigned int limit() const = 0;
};
class DummyVideoSource : public VideoSource {
public:
DummyVideoSource()
: img_(NULL), limit_(100), width_(80), height_(64),
format_(VPX_IMG_FMT_I420) {
ReallocImage();
}
virtual ~DummyVideoSource() { vpx_img_free(img_); }
virtual void Begin() {
frame_ = 0;
FillFrame();
}
virtual void Next() {
++frame_;
FillFrame();
}
virtual vpx_image_t *img() const { return (frame_ < limit_) ? img_ : NULL; }
// Models a stream where Timebase = 1/FPS, so pts == frame.
virtual vpx_codec_pts_t pts() const { return frame_; }
virtual unsigned long duration() const { return 1; }
virtual vpx_rational_t timebase() const {
const vpx_rational_t t = { 1, 30 };
return t;
}
virtual unsigned int frame() const { return frame_; }
virtual unsigned int limit() const { return limit_; }
void set_limit(unsigned int limit) { limit_ = limit; }
void SetSize(unsigned int width, unsigned int height) {
if (width != width_ || height != height_) {
width_ = width;
height_ = height;
ReallocImage();
}
}
void SetImageFormat(vpx_img_fmt_t format) {
if (format_ != format) {
format_ = format;
ReallocImage();
}
}
protected:
virtual void FillFrame() {
if (img_) memset(img_->img_data, 0, raw_sz_);
}
void ReallocImage() {
vpx_img_free(img_);
img_ = vpx_img_alloc(NULL, format_, width_, height_, 32);
raw_sz_ = ((img_->w + 31) & ~31) * img_->h * img_->bps / 8;
}
vpx_image_t *img_;
size_t raw_sz_;
unsigned int limit_;
unsigned int frame_;
unsigned int width_;
unsigned int height_;
vpx_img_fmt_t format_;
};
class RandomVideoSource : public DummyVideoSource {
public:
RandomVideoSource(int seed = ACMRandom::DeterministicSeed())
: rnd_(seed), seed_(seed) {}
protected:
// Reset the RNG to get a matching stream for the second pass
virtual void Begin() {
frame_ = 0;
rnd_.Reset(seed_);
FillFrame();
}
// 15 frames of noise, followed by 15 static frames. Reset to 0 rather
// than holding previous frames to encourage keyframes to be thrown.
virtual void FillFrame() {
if (img_) {
if (frame_ % 30 < 15) {
for (size_t i = 0; i < raw_sz_; ++i) img_->img_data[i] = rnd_.Rand8();
} else {
memset(img_->img_data, 0, raw_sz_);
}
}
}
ACMRandom rnd_;
int seed_;
};
// Abstract base class for test video sources, which provide a stream of
// decompressed images to the decoder.
class CompressedVideoSource {
public:
virtual ~CompressedVideoSource() {}
virtual void Init() = 0;
// Prepare the stream for reading, rewind/open as necessary.
virtual void Begin() = 0;
// Advance the cursor to the next frame
virtual void Next() = 0;
virtual const uint8_t *cxdata() const = 0;
virtual size_t frame_size() const = 0;
virtual unsigned int frame_number() const = 0;
};
} // namespace libvpx_test
#endif // VPX_TEST_VIDEO_SOURCE_H_