110 lines
4.4 KiB
C++
110 lines
4.4 KiB
C++
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/tools/frame_editing/frame_editing_lib.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "webrtc/tools/simple_command_line_parser.h"
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// A command-line tool to edit a YUV-video (I420 sub-sampled).
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int main(int argc, char** argv) {
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std::string program_name = argv[0];
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std::string usage = "Deletes a series of frames in a yuv file."
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" Only I420 is supported!\n"
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"Example usage:\n" + program_name +
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" --in_path=input.yuv --width=320 --height=240 --f=60 --interval=1 --l=120"
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" --out_path=edited_clip.yuv\n"
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"Command line flags:\n"
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"--in_path(string): Path and filename to the input file\n"
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"--width(int): Width in pixels of the frames in the input file."
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" Default: -1\n"
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"--height(int): Height in pixels of the frames in the input file."
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" Default: -1\n"
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"--f(int): First frame to process. Default: -1\n"
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"--l(int): Last frame to process. Default: -1\n"
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"Frame numbering starts at 1. The set of frames to be processed includes "
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"the frame with the number <f> and <l>.\n"
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"--interval(int): Interval specifies with what ratio the number of frames "
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"should be increased or decreased with.\n"
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"If you set <interval> to a positive number, frames between <f> and <l> "
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"will be inserted <interval> times."
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" If you set <interval> to a negative number then the amount of frames "
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"between <f> and <l> will be decreased with a ratio of abs(interval)."
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" Set interval=-1 if every frame between <f> and <l> should be "
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"deleted. Set interval=-2 if every second frame should be deleted, and so "
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"on. Frame numbering between <f> and <l> starts with 1 and frames with"
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" number n where (n - 1) % interval == 0 will be kept.\n"
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"Example 1:\n"
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"If one clip has 10 frames (1 to 10) and you specify <f>=4, <l>=7 and "
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"interval=2, then you will get a clip that contains frame "
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"1, 2, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9 and 10.\n"
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"Example 2:\n"
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"If you specify f=4, l=7 and interval=-1, then you will get a clip that"
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" contains frame 1, 2, 3, 8, 9 and 10.\n"
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"Example 3:\n"
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"If one clip has 10 frames (1 to 10), and you specify f=1, l=10 and "
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" interval=-4, then you will get a clip that contains frame "
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"1, 5 and 9.\n"
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"No interpolation is done when up-sampling."
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" Default: -1\n"
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"--out_path(string): The output file to which frames are written."
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" Default: output.yuv\n";
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webrtc::test::CommandLineParser parser;
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// Init the parser and set the usage message
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parser.Init(argc, argv);
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parser.SetUsageMessage(usage);
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parser.SetFlag("in_path", "-1");
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parser.SetFlag("width", "-1");
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parser.SetFlag("height", "-1");
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parser.SetFlag("f", "-1");
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parser.SetFlag("interval", "-1");
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parser.SetFlag("l", "-1");
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parser.SetFlag("out_path", "edited_output.yuv");
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parser.SetFlag("help", "false");
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parser.ProcessFlags();
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if (parser.GetFlag("help") == "true") {
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parser.PrintUsageMessage();
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exit(EXIT_SUCCESS);
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}
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parser.PrintEnteredFlags();
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const char* in_path = parser.GetFlag("in_path").c_str();
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int width = strtol((parser.GetFlag("width")).c_str(), NULL, 10);
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int height = strtol((parser.GetFlag("height")).c_str(), NULL, 10);
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int first_frame_to_cut = strtol((parser.GetFlag("f")).c_str(), NULL, 10);
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int interval = strtol((parser.GetFlag("interval")).c_str(), NULL, 10);
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int last_frame_to_cut = strtol((parser.GetFlag("l")).c_str(), NULL, 10);
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const char* out_path = parser.GetFlag("out_path").c_str();
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if (!strcmp(in_path, "-1")) {
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fprintf(stderr, "You must specify a file to edit\n");
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return -1;
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}
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if (first_frame_to_cut <= 0 || last_frame_to_cut <= 0) {
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fprintf(stderr, "Error: You must specify which frames to cut!\n");
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return -2;
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}
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if (width <= 0 || height <= 0) {
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fprintf(stderr, "Error: width or height cannot be <= 0!\n");
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return -3;
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}
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return webrtc::EditFrames(in_path, width, height, first_frame_to_cut,
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interval, last_frame_to_cut, out_path);
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}
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