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-rw-r--r--third_party/aom/test/video_source.h259
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diff --git a/third_party/aom/test/video_source.h b/third_party/aom/test/video_source.h
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--- a/third_party/aom/test/video_source.h
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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.
- */
-#ifndef AOM_TEST_VIDEO_SOURCE_H_
-#define AOM_TEST_VIDEO_SOURCE_H_
-
-#if defined(_WIN32)
-#undef NOMINMAX
-#define NOMINMAX
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-#include <cstdio>
-#include <cstdlib>
-#include <string>
-#include "test/acm_random.h"
-#include "aom/aom_encoder.h"
-
-namespace libaom_test {
-
-// Helper macros to ensure LIBAOM_TEST_DATA_PATH is a quoted string.
-// These are undefined right below GetDataPath
-// NOTE: LIBAOM_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("LIBAOM_TEST_DATA_PATH");
- if (data_path == NULL) {
-#ifdef LIBAOM_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(LIBAOM_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
- char name_template[] = "/tmp/libaomtest.XXXXXX";
- const int fd = mkstemp(name_template);
- *file_name = name_template;
- return fdopen(fd, "wb+");
-#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
-// aom_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 aom_image_t *img() const = 0;
-
- // Get the presentation timestamp of the current frame.
- virtual aom_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 aom_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_(AOM_IMG_FMT_I420) {
- ReallocImage();
- }
-
- virtual ~DummyVideoSource() { aom_img_free(img_); }
-
- virtual void Begin() {
- frame_ = 0;
- FillFrame();
- }
-
- virtual void Next() {
- ++frame_;
- FillFrame();
- }
-
- virtual aom_image_t *img() const { return (frame_ < limit_) ? img_ : 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 = { 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(aom_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() {
- aom_img_free(img_);
- img_ = aom_img_alloc(NULL, format_, width_, height_, 32);
- raw_sz_ = ((img_->w + 31) & ~31) * img_->h * img_->bps / 8;
- }
-
- aom_image_t *img_;
- size_t raw_sz_;
- unsigned int limit_;
- unsigned int frame_;
- unsigned int width_;
- unsigned int height_;
- aom_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 libaom_test
-
-#endif // AOM_TEST_VIDEO_SOURCE_H_