CloudFront 연동을 위한 워터마크 전처리 출력물 파일명 및 폴더 구조 규칙

Question
What naming and folder structure should be used for watermark-preprocessed output to integrate with AWS CloudFront?

Answer & Resolution

DASH Output Restructuring
- Video Segment Renaming
  - Prefix all segment files in folder 1 with b.
    Example:
    seg-1.m4s → b.seg-1.m4s
  - Rename the initialization file:
    init.m4s → b._init.m4s
  - Merge both symbol-0 and symbol-1 watermarked segment folders into a single target directory.
  - Replace hyphens (-) with underscores (_) in segment filenames:
    seg-1.m4s → b.seg_1.m4s
- Audio Segment Renaming
  - Append _init to all audio segment files:
    seg-1.m4s → seg-1_init.m4s
    init.m4s → _init.m4s
- Folder Structure Requirement
```
<bucket>/wm-contents/<output_path>/<cid>/dash/video/avc1/1/
<bucket>/wm-contents/<output_path>/<cid>/dash/audio/mp4a/eng_2ch/
<bucket>/wm-contents/<output_path>/<cid>/dash/stream.mpd
```
- MPD Updates
  To ensure proper playback, update the references inside the MPD:
  - Change initialization file reference:
    init.mp4 → _init.mp4
  - Update video segment template:
    seg-$Number$.m4s → seg_$Number$.m4s
  - Update audio segment template:
    seg-$Number$.m4s → seg-$Number$_init.m4s
HLS Output Restructuring
- Video Segment Renaming
  - Prefix all .ts video segments in folder 1 with b.
    Example:
    segment-1.ts → b.segment-1.ts
  - Merge symbol-0 and symbol-1 segment groups into one.
- Audio Segment Renaming
  - Append _init to all audio segments:
    seg-1.aac → seg-1_init.aac
- Folder Structure Requirement
```
<bucket>/wm-contents/<output_path>/<cid>/hls/video/avc1/1/
<bucket>/wm-contents/<output_path>/<cid>/hls/audio/mp4a/eng_2ch/
<bucket>/wm-contents/<output_path>/<cid>/hls/master.m3u8
```
- m3u8 updates
  - No modifications are required in HLS .m3u8 playlists.

After completing the renaming and restructuring steps for both `DASH` and `HLS`, upload the updated content to your `S3` bucket following the specified folder structure. `CloudFront` will then be able to resolve the watermarkable segments correctly during playback.

Question
What naming and folder structure should be used for watermark-preprocessed output to integrate with AWS CloudFront?

Answer & Resolution

DASH Output Restructuring

Video Segment Renaming

Prefix all segment files in folder `1` with `b.`
Example:
`seg-1.m4s` → `b.seg-1.m4s`

Rename the initialization file:
`init.m4s` → `b._init.m4s`

Merge both `symbol-0` and `symbol-1` watermarked segment folders into a single target directory.

Replace hyphens (`-`) with underscores (`_`) in segment filenames:
`seg-1.m4s` → `b.seg_1.m4s`

Audio Segment Renaming

Append `_init` to all audio segment files:
`seg-1.m4s` → `seg-1_init.m4s`
`init.m4s` → `_init.m4s`

Folder Structure Requirement

MPD Updates
To ensure proper playback, update the references inside the `MPD`:

Change initialization file reference:
`init.mp4` → `_init.mp4`

Update video segment template:
`seg-$Number$.m4s` → `seg_$Number$.m4s`

Update audio segment template:
`seg-$Number$.m4s` → `seg-$Number$_init.m4s`

HLS Output Restructuring

Video Segment Renaming

Prefix all `.ts` video segments in folder `1` with `b.`
Example:
`segment-1.ts` → `b.segment-1.ts`

Merge `symbol-0` and `symbol-1` segment groups into one.

Audio Segment Renaming

Append `_init` to all audio segments:
`seg-1.aac` → `seg-1_init.aac`

Folder Structure Requirement

m3u8 updates

No modifications are required in HLS `.m3u8` playlists.

After completing the renaming and restructuring steps for both `DASH` and `HLS`, upload the updated content to your `S3` bucket following the specified folder structure. `CloudFront` will then be able to resolve the watermarkable segments correctly during playback.

References
https://docs.doverunner.com/ko/content-security/forensic-watermarking/embedding/cloudfront-embedder/

QuestionWhat naming and folder structure should be used for watermark-preprocessed output to integrate with AWS CloudFront?

Answer & Resolution

DASH Output Restructuring

Video Segment Renaming

Prefix all segment files in folder 1 with b.Example:seg-1.m4s → b.seg-1.m4s

Rename the initialization file:init.m4s → b._init.m4s

Merge both symbol-0 and symbol-1 watermarked segment folders into a single target directory.

Replace hyphens (-) with underscores (_) in segment filenames:seg-1.m4s → b.seg_1.m4s

Audio Segment Renaming

Append _init to all audio segment files:seg-1.m4s → seg-1_init.m4sinit.m4s → _init.m4s

Folder Structure Requirement

MPD UpdatesTo ensure proper playback, update the references inside the MPD:

Change initialization file reference:init.mp4 → _init.mp4

Update video segment template:seg-$Number$.m4s → seg_$Number$.m4s

Update audio segment template:seg-$Number$.m4s → seg-$Number$_init.m4s

HLS Output Restructuring

Video Segment Renaming

Prefix all .ts video segments in folder 1 with b.Example:segment-1.ts → b.segment-1.ts

Merge symbol-0 and symbol-1 segment groups into one.

Audio Segment Renaming

Append _init to all audio segments:seg-1.aac → seg-1_init.aac

Folder Structure Requirement

m3u8 updates

No modifications are required in HLS .m3u8 playlists.

After completing the renaming and restructuring steps for both DASH and HLS, upload the updated content to your S3 bucket following the specified folder structure. CloudFront will then be able to resolve the watermarkable segments correctly during playback.

Referenceshttps://docs.doverunner.com/ko/content-security/forensic-watermarking/embedding/cloudfront-embedder/

관련 문서

Question
What naming and folder structure should be used for watermark-preprocessed output to integrate with AWS CloudFront?

Prefix all segment files in folder `1` with `b.`
Example:
`seg-1.m4s` → `b.seg-1.m4s`

Rename the initialization file:
`init.m4s` → `b._init.m4s`

Merge both `symbol-0` and `symbol-1` watermarked segment folders into a single target directory.

Replace hyphens (`-`) with underscores (`_`) in segment filenames:
`seg-1.m4s` → `b.seg_1.m4s`

Append `_init` to all audio segment files:
`seg-1.m4s` → `seg-1_init.m4s`
`init.m4s` → `_init.m4s`

MPD Updates
To ensure proper playback, update the references inside the `MPD`:

Change initialization file reference:
`init.mp4` → `_init.mp4`

Update video segment template:
`seg-$Number$.m4s` → `seg_$Number$.m4s`

Update audio segment template:
`seg-$Number$.m4s` → `seg-$Number$_init.m4s`

Prefix all `.ts` video segments in folder `1` with `b.`
Example:
`segment-1.ts` → `b.segment-1.ts`

Merge `symbol-0` and `symbol-1` segment groups into one.

Append `_init` to all audio segments:
`seg-1.aac` → `seg-1_init.aac`

No modifications are required in HLS `.m3u8` playlists.

After completing the renaming and restructuring steps for both `DASH` and `HLS`, upload the updated content to your `S3` bucket following the specified folder structure. `CloudFront` will then be able to resolve the watermarkable segments correctly during playback.

References
https://docs.doverunner.com/ko/content-security/forensic-watermarking/embedding/cloudfront-embedder/