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translate the note VideoHandleActivity into English
translate the note VideoHandleActivity into English
1 parent b54c164 commit d5b9d96

1 file changed

Lines changed: 30 additions & 26 deletions

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‎app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java‎

Lines changed: 30 additions & 26 deletions
Original file line numberDiff line numberDiff line change
@@ -22,6 +22,10 @@
2222
import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_BEGIN;
2323
import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_FINISH;
2424

25+
/**
26+
* video process by FFmpeg command
27+
* Created by frank on 2018/1/25.
28+
*/
2529
public class VideoHandleActivity extends BaseActivity {
2630

2731
private final static String TAG = VideoHandleActivity.class.getSimpleName();
@@ -104,7 +108,7 @@ void onSelectedFile(String filePath) {
104108
}
105109

106110
/**
107-
* 调用ffmpeg处理视频
111+
* call FFmpeg cmd to process video
108112
*
109113
* @param srcFile srcFile
110114
*/
@@ -118,11 +122,11 @@ private void doHandleVideo(String srcFile) {
118122
return;
119123
}
120124
switch (viewId) {
121-
case R.id.btn_video_transform://视频转码:mp4转flv、wmv, 或者flv、wmv转Mp4
125+
case R.id.btn_video_transform://transform format
122126
String transformVideo = PATH + File.separator + "transformVideo.mp4";
123127
commandLine = FFmpegUtil.transformVideo(srcFile, transformVideo);
124128
break;
125-
case R.id.btn_video_cut://视频剪切
129+
case R.id.btn_video_cut://cut video
126130
String suffix = FileUtil.getFileSuffix(srcFile);
127131
if (suffix == null || suffix.isEmpty()) {
128132
return;
@@ -132,7 +136,7 @@ private void doHandleVideo(String srcFile) {
132136
int duration = 20;
133137
commandLine = FFmpegUtil.cutVideo(srcFile, startTime, duration, cutVideo);
134138
break;
135-
case R.id.btn_video_concat://视频合并
139+
case R.id.btn_video_concat://concat video
136140
// commandLine = FFmpegUtil.toTs(srcFile, ts1);
137141
// concatStep ++;
138142
// String concatVideo = PATH + File.separator + "concatVideo.mp4";
@@ -150,27 +154,27 @@ private void doHandleVideo(String srcFile) {
150154
// }
151155
// commandLine = FFmpegUtil.concatVideo(srcFile, concatFile.getAbsolutePath(), concatVideo);
152156
break;
153-
case R.id.btn_screen_shot://视频截图
157+
case R.id.btn_screen_shot://video snapshot
154158
String screenShot = PATH + File.separator + "screenShot.jpg";
155159
int time = 18;
156160
commandLine = FFmpegUtil.screenShot(srcFile, time, screenShot);
157161
break;
158-
case R.id.btn_water_mark://视频添加水印
159-
//1、图片
162+
case R.id.btn_water_mark://add watermark to video
163+
// picture
160164
String photo = PATH + File.separator + "launcher.png";
161165
String photoMark = PATH + File.separator + "photoMark.mp4";
162166
String mResolution = "720x1280";
163167
int bitRate = 1024;
164168
commandLine = FFmpegUtil.addWaterMark(srcFile, photo, mResolution, bitRate, photoMark);
165-
//2、文字
169+
// text
166170
// String text = "Hello,FFmpeg";
167171
// String textPath = PATH + File.separator + "text.jpg";
168172
// boolean result = BitmapUtil.textToPicture(textPath, text, this);
169173
// Log.i(TAG, "text to pitcture result=" + result);
170174
// String textMark = PATH + File.separator + "textMark.mp4";
171175
// commandLine = FFmpegUtil.addWaterMark(srcFile, textPath, textMark);
172176
break;
173-
case R.id.btn_generate_gif://视频转成gif
177+
case R.id.btn_generate_gif://convert video into gif
174178
String Video2Gif = PATH + File.separator + "Video2Gif.gif";
175179
int gifStart = 30;
176180
int gifDuration = 5;
@@ -179,13 +183,13 @@ private void doHandleVideo(String srcFile) {
179183
commandLine = FFmpegUtil.generateGif(srcFile, gifStart, gifDuration,
180184
resolution, frameRate, Video2Gif);
181185
break;
182-
case R.id.btn_screen_record://屏幕录制
186+
case R.id.btn_screen_record://screen recording
183187
// String screenRecord = PATH + File.separator + "screenRecord.mp4";
184188
// String screenSize = "320x240";
185189
// int recordTime = 10;
186190
// commandLine = FFmpegUtil.screenRecord(screenSize, recordTime, screenRecord);
187191
break;
188-
case R.id.btn_multi_video://视频画面拼接:分辨率、时长、封装格式不一致时，先把视频源转为一致
192+
case R.id.btn_multi_video://combine video which layout could be horizontal of vertical
189193
String input1 = PATH + File.separator + "input1.mp4";
190194
String input2 = PATH + File.separator + "input2.mp4";
191195
String outputFile = PATH + File.separator + "multi.mp4";
@@ -194,42 +198,42 @@ private void doHandleVideo(String srcFile) {
194198
}
195199
commandLine = FFmpegUtil.multiVideo(input1, input2, outputFile, VideoLayout.LAYOUT_HORIZONTAL);
196200
break;
197-
case R.id.btn_reverse_video://视频反序倒播
201+
case R.id.btn_reverse_video://video reverse
198202
String output = PATH + File.separator + "reverse.mp4";
199203
commandLine = FFmpegUtil.reverseVideo(srcFile, output);
200204
break;
201-
case R.id.btn_denoise_video://视频降噪
205+
case R.id.btn_denoise_video://noise reduction of video
202206
String denoise = PATH + File.separator + "denoise.mp4";
203207
commandLine = FFmpegUtil.denoiseVideo(srcFile, denoise);
204208
break;
205-
case R.id.btn_to_image://视频转图片
206-
String imagePath = PATH + File.separator + "Video2Image/";//图片保存路径
209+
case R.id.btn_to_image://convert video to picture
210+
String imagePath = PATH + File.separator + "Video2Image/";
207211
File imageFile = new File(imagePath);
208212
if (!imageFile.exists()) {
209213
boolean result = imageFile.mkdir();
210214
if (!result) {
211215
return;
212216
}
213217
}
214-
int mStartTime = 10;//开始时间
215-
int mDuration = 20;//持续时间（注意开始时间+持续时间之和不能大于视频总时长）
216-
int mFrameRate = 10;//帧率（从视频中每秒抽多少帧）
218+
int mStartTime = 10;//start time
219+
int mDuration = 20;//duration
220+
int mFrameRate = 10;//frameRate
217221
commandLine = FFmpegUtil.videoToImage(srcFile, mStartTime, mDuration, mFrameRate, imagePath);
218222
break;
219-
case R.id.btn_pip://两个视频合成画中画
223+
case R.id.btn_pip://combine into picture-in-picture video
220224
String inputFile1 = PATH + File.separator + "beyond.mp4";
221225
String inputFile2 = PATH + File.separator + "small_girl.mp4";
222226
if (!FileUtil.checkFileExist(inputFile1) && !FileUtil.checkFileExist(inputFile2)) {
223227
return;
224228
}
225-
//x、y坐标点需要根据全屏视频与小视频大小，进行计算
226-
//比如：全屏视频为320x240，小视频为120x90，那么x=200 y=150
229+
//x and y coordinate points need to be calculated according to the size of full video and small video
230+
//For example: full video is 320x240, small video is 120x90, so x=200 y=150
227231
int x = 200;
228232
int y = 150;
229233
String picInPic = PATH + File.separator + "PicInPic.mp4";
230234
commandLine = FFmpegUtil.picInPicVideo(inputFile1, inputFile2, x, y, picInPic);
231235
break;
232-
case R.id.btn_moov://moov前移操作，针对mp4视频moov在mdat后面的情况
236+
case R.id.btn_moov://moov box moves ahead, which is behind mdat box of mp4 video
233237
if (!srcFile.endsWith(FileUtil.TYPE_MP4)) {
234238
showToast(getString(R.string.tip_not_mp4_video));
235239
return;
@@ -258,17 +262,17 @@ private void doHandleVideo(String srcFile) {
258262
}
259263

260264
/**
261-
* 图片合成视频
265+
* Combine pictures into video
262266
*/
263267
private void handlePhoto() {
264-
// 图片所在路径，图片命名格式img+number.jpg
265-
// 这里指定目录为根目录下img文件夹
268+
// The path of pictures, naming format: img+number.jpg
269+
// Here assigns the directory is img under the root path
266270
String picturePath = PATH + "/img/";
267271
if (!FileUtil.checkFileExist(picturePath)) {
268272
return;
269273
}
270274
String combineVideo = PATH + File.separator + "combineVideo.mp4";
271-
int frameRate = 2;// 合成视频帧率建议:1-10 普通视频帧率一般为25
275+
int frameRate = 2;// suggested synthetic frameRate:1-10
272276
String[] commandLine = FFmpegUtil.pictureToVideo(picturePath, frameRate, combineVideo);
273277
if (ffmpegHandler != null) {
274278
ffmpegHandler.executeFFmpegCmd(commandLine);

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