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1 /* | |
2 * Copyright (c) 2012 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 | |
11 #include "webrtc/tools/frame_editing/frame_editing_lib.h" | |
12 | |
13 #include <stdio.h> | |
14 #include <stdlib.h> | |
15 #include <string.h> | |
16 | |
17 #include "webrtc/tools/simple_command_line_parser.h" | |
18 | |
19 // A command-line tool to edit a YUV-video (I420 sub-sampled). | |
20 int main(int argc, char** argv) { | |
21 std::string program_name = argv[0]; | |
22 std::string usage = "Deletes a series of frames in a yuv file." | |
23 " Only I420 is supported!\n" | |
24 "Example usage:\n" + program_name + | |
25 " --in_path=input.yuv --width=320 --height=240 --f=60 --interval=1 --l=120" | |
26 " --out_path=edited_clip.yuv\n" | |
27 "Command line flags:\n" | |
28 "--in_path(string): Path and filename to the input file\n" | |
29 "--width(int): Width in pixels of the frames in the input file." | |
30 " Default: -1\n" | |
31 "--height(int): Height in pixels of the frames in the input file." | |
32 " Default: -1\n" | |
33 "--f(int): First frame to process. Default: -1\n" | |
34 "--l(int): Last frame to process. Default: -1\n" | |
35 "Frame numbering starts at 1. The set of frames to be processed includes " | |
36 "the frame with the number <f> and <l>.\n" | |
37 "--interval(int): Interval specifies with what ratio the number of frames " | |
38 "should be increased or decreased with.\n" | |
39 "If you set <interval> to a positive number, frames between <f> and <l> " | |
40 "will be inserted <interval> times." | |
41 " If you set <interval> to a negative number then the amount of frames " | |
42 "between <f> and <l> will be decreased with a ratio of abs(interval)." | |
43 " Set interval=-1 if every frame between <f> and <l> should be " | |
44 "deleted. Set interval=-2 if every second frame should be deleted, and so " | |
45 "on. Frame numbering between <f> and <l> starts with 1 and frames with" | |
46 " number n where (n - 1) % interval == 0 will be kept.\n" | |
47 "Example 1:\n" | |
48 "If one clip has 10 frames (1 to 10) and you specify <f>=4, <l>=7 and " | |
49 "interval=2, then you will get a clip that contains frame " | |
50 "1, 2, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9 and 10.\n" | |
51 "Example 2:\n" | |
52 "If you specify f=4, l=7 and interval=-1, then you will get a clip that" | |
53 " contains frame 1, 2, 3, 8, 9 and 10.\n" | |
54 "Example 3:\n" | |
55 "If one clip has 10 frames (1 to 10), and you specify f=1, l=10 and " | |
56 " interval=-4, then you will get a clip that contains frame " | |
57 "1, 5 and 9.\n" | |
58 "No interpolation is done when up-sampling." | |
59 " Default: -1\n" | |
60 "--out_path(string): The output file to which frames are written." | |
61 " Default: output.yuv\n"; | |
62 | |
63 webrtc::test::CommandLineParser parser; | |
64 | |
65 // Init the parser and set the usage message | |
66 parser.Init(argc, argv); | |
67 parser.SetUsageMessage(usage); | |
68 parser.SetFlag("in_path", "-1"); | |
69 parser.SetFlag("width", "-1"); | |
70 parser.SetFlag("height", "-1"); | |
71 parser.SetFlag("f", "-1"); | |
72 parser.SetFlag("interval", "-1"); | |
73 parser.SetFlag("l", "-1"); | |
74 parser.SetFlag("out_path", "edited_output.yuv"); | |
75 parser.SetFlag("help", "false"); | |
76 | |
77 parser.ProcessFlags(); | |
78 if (parser.GetFlag("help") == "true") { | |
79 parser.PrintUsageMessage(); | |
80 exit(EXIT_SUCCESS); | |
81 } | |
82 parser.PrintEnteredFlags(); | |
83 | |
84 const char* in_path = parser.GetFlag("in_path").c_str(); | |
85 int width = strtol((parser.GetFlag("width")).c_str(), NULL, 10); | |
86 int height = strtol((parser.GetFlag("height")).c_str(), NULL, 10); | |
87 int first_frame_to_cut = strtol((parser.GetFlag("f")).c_str(), NULL, 10); | |
88 int interval = strtol((parser.GetFlag("interval")).c_str(), NULL, 10); | |
89 int last_frame_to_cut = strtol((parser.GetFlag("l")).c_str(), NULL, 10); | |
90 | |
91 const char* out_path = parser.GetFlag("out_path").c_str(); | |
92 | |
93 if (!strcmp(in_path, "-1")) { | |
94 fprintf(stderr, "You must specify a file to edit\n"); | |
95 return -1; | |
96 } | |
97 | |
98 if (first_frame_to_cut <= 0 || last_frame_to_cut <= 0) { | |
99 fprintf(stderr, "Error: You must specify which frames to cut!\n"); | |
100 return -2; | |
101 } | |
102 | |
103 if (width <= 0 || height <= 0) { | |
104 fprintf(stderr, "Error: width or height cannot be <= 0!\n"); | |
105 return -3; | |
106 } | |
107 return webrtc::EditFrames(in_path, width, height, first_frame_to_cut, | |
108 interval, last_frame_to_cut, out_path); | |
109 } | |
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