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feat: 파일제목 변경 (#29) #32

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Nov 29, 2024
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feat: 파일제목 변경 (#29) #32

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27 changes: 14 additions & 13 deletions src/main/java/aws/teamthreefive/diecastvideo/service/DiecastvideoCommandService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -90,16 +90,12 @@ public List<String> extractAndUploadFrames(File videoFile, Long videoId) {


String outputPath = outputDir.getAbsolutePath() + "/frame_%03d.jpg";
// 필터 설정: 4.2초 주기 동안 2.4초 동안 5개의 이미지를 추출하고, 나머지 1.8초는 건너뛰기
// 정상 동작하는 필터 (그러나 5번 이미지가 5장씩 나옴)
// String filter = "select='if(gte(mod(t,4.2),0),if(lt(mod(t,4.2),2.3),1,0),0)',fps=1.1905";
// String filter = "select='if(gte(mod(t,4.2),0),if(lt(mod(t,4.2),2.4),1,0),0)',fps=2.083";

// 아래는 시도해본 흔적들... 필터를 수정하시면 됩니다
// String filter = "select='if(lt(mod(t,4.2),2.37),1,0)',fps=2.109";
// String filter = "select='if(lt(mod(t,4.2),2.34),1,if(lt(mod(t,4.2),4.2),0,1))',fps=2.136";
String filter = "select='lt(mod(t,4.2),2.461)',fps=2.031";
//2.47, 2.475, 2.472, 2.468, 2.463(best), 2.461(best), 2.462(최악)
// 필터 설정: 4.2초 주기 동안 2.463초 동안 5개의 이미지를 추출하고, 나머지 1.n초는 건너뛰기, fps=5%2.463
String filter = "select='lt(mod(t,4.4),2.43)',fps=2.057";
//2.47, 2.475, 2.472, 2.468, 2.463(best), 2.461(best), 2.462(최악), 2.45(최악), 2.464(최악)
//2.465
//4.4초 주기 동안 0.48초 간격(총 2.44초 동안 5개 이미지 추출)
// String filter = "select='lt(mod(t,4.4),2.44)',fps=2.049";

ProcessBuilder processBuilder = new ProcessBuilder(
"ffmpeg", "-i", videoFile.getAbsolutePath(),
Expand Down Expand Up @@ -140,13 +136,14 @@ public List<String> extractAndUploadFrames(File videoFile, Long videoId) {
List<File> frameBatch = new ArrayList<>();
int frameCount = 0;
int frameIndex = 1;
int objectIndex = 1;
int cameraIndex = 1;

for (File file : files) {
frameBatch.add(file);
frameCount++;

// 9개 프레임 묶음 처리
if (frameBatch.size() == 9 || frameCount == files.length) {
if (frameBatch.size() == 9 || frameBatch.size() + frameCount == files.length) {
log.info("Processing batch of 9 frames...");

// 앞 5개는 업로드
Expand All @@ -155,7 +152,7 @@ public List<String> extractAndUploadFrames(File videoFile, Long videoId) {
MultipartFile multipartFile = convertToMultipartFile(frameFile);

// S3 업로드
String frameUrl = s3Manager.uploadFile("framestest13/" + String.format("frame_%03d.jpg", frameIndex), multipartFile);
String frameUrl = s3Manager.uploadFile("framestest13/" + String.format("frame_%d_%d_%03d.jpg", objectIndex, cameraIndex, frameIndex), multipartFile);
frameUrls.add(frameUrl);

// 프레임 메타데이터 저장
Expand All @@ -170,6 +167,7 @@ public List<String> extractAndUploadFrames(File videoFile, Long videoId) {
frameFile.delete();

frameIndex++;
cameraIndex++;
}

// 뒤 4개는 삭제
Expand All @@ -179,6 +177,9 @@ public List<String> extractAndUploadFrames(File videoFile, Long videoId) {
frameFile.delete();
}

objectIndex++;
cameraIndex = 1;

// 묶음 초기화
frameBatch.clear();
}
Expand Down
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