1 /* 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef WEBRTC_COMMON_VIDEO_TEST_FRAME_GENERATOR_H_ 11 #define WEBRTC_COMMON_VIDEO_TEST_FRAME_GENERATOR_H_ 12 13 #include <string> 14 #include <vector> 15 16 #include "webrtc/typedefs.h" 17 #include "webrtc/video_frame.h" 18 19 namespace webrtc { 20 class Clock; 21 namespace test { 22 23 class FrameGenerator { 24 public: FrameGenerator()25 FrameGenerator() {} ~FrameGenerator()26 virtual ~FrameGenerator() {} 27 28 // Returns video frame that remains valid until next call. 29 virtual VideoFrame* NextFrame() = 0; 30 31 // Creates a test frame generator that creates fully saturated frames with 32 // varying U, V values over time. 33 static FrameGenerator* CreateChromaGenerator(size_t width, size_t height); 34 35 // Creates a frame generator that repeatedly plays a set of yuv files. 36 // The frame_repeat_count determines how many times each frame is shown, 37 // with 1 = show each frame once, etc. 38 static FrameGenerator* CreateFromYuvFile(std::vector<std::string> files, 39 size_t width, 40 size_t height, 41 int frame_repeat_count); 42 43 // Creates a frame generator which takes a set of yuv files (wrapping a 44 // frame generator created by CreateFromYuvFile() above), but outputs frames 45 // that have been cropped to specified resolution: source_width/source_height 46 // is the size of the source images, target_width/target_height is the size of 47 // the cropped output. For each source image read, the cropped viewport will 48 // be scrolled top to bottom/left to right for scroll_tim_ms milliseconds. 49 // After that the image will stay in place for pause_time_ms milliseconds, 50 // and then this will be repeated with the next file from the input set. 51 static FrameGenerator* CreateScrollingInputFromYuvFiles( 52 Clock* clock, 53 std::vector<std::string> filenames, 54 size_t source_width, 55 size_t source_height, 56 size_t target_width, 57 size_t target_height, 58 int64_t scroll_time_ms, 59 int64_t pause_time_ms); 60 }; 61 } // namespace test 62 } // namespace webrtc 63 64 #endif // WEBRTC_COMMON_VIDEO_TEST_FRAME_GENERATOR_H_ 65