compression-high-bitrate-bars
成功
出力は入力より小さい
これはこのクリップで記録した設定とバイト数です。
| 大きさの結果 | 記録された値 |
|---|---|
| プリセット | smallest |
| 品質 | 20 |
| 大きさの目標 | オフ |
| 元の解像度 | 1280×720 |
| 元のフレームレート | 24 |
| 出力コーデック | vp9 + opus |
| 入力バイト | 2976898 |
| 出力バイト | 149460 |
| バイトの変化 | -2827438 |
より小さいファイルが必要なら、解像度を下げる、品質を下げる、または大きさの目標を目安にして、同じフレームと書き出したバイト数を比べてから残してください。
- 形式
- mp4
- バイト数
- 2976898
- SHA-256
323e12f272e3b3fe8162883e123559c32a2d89d7b6b3431d3124f3a666740204- ライセンス
- CC0-1.0
- 出典
- Generated CC0 lab input on 2026-10-26 with ffmpeg 6.1.1: testsrc2 1280x720, 24 fps, 2 seconds, sine 440 Hz, libx264 ultrafast CBR 12000k, AAC 128k. Original lab input, not a camera recording.
元のフィクスチャ assets/video-lab/cpk-lab-cc0-high-bitrate-bars-1280x720.mp4
行った操作
- opened /tools/video-compressor/
- uploaded cpk-lab-cc0-high-bitrate-bars-1280x720.mp4
- selected preset smallest
- set quality 20
- left target size off
- clicked #start
- clicked #save
記録されたオプション
- webCodecs
- true
- preset
- smallest
- targetEnabled
- false
- quality
- 20
- keepAudio
- true
- resolution
- Original
- fps
- Original
- engineLabel
- WebCodecs
記録された入力
- sha256
- 323e12f272e3b3fe8162883e123559c32a2d89d7b6b3431d3124f3a666740204
- bytes
- 2976898
- video
- {"codec":"h264","width":1280,"height":720,"fps":24,"bitrate":11768644,"durationSec":2,"audioCodec":"aac","audioPresent":true}
assets/video-compression/compression-high-bitrate-bars-output.webm
出力のプローブ
- video
- {"codec":"vp9","width":1280,"height":720,"fps":24,"audioCodec":"opus","audioPresent":true}
- summary
- This download probed as vp9 with opus audio. Output is 149460 bytes and the input fixture is 2976898 bytes. The output file is smaller than the input on this clip. ffprobe duration was 2.02 seconds. Elapsed 455ms is for this environment only.
0b11fbd73e2c18d98ee7d9a9bf0733a88f1c68ea74ac9ccdb47bc54370cae7a0 · 149460
記録された確認
- outputLargerThanInput
- false
- outputSmallerThanInput
- true
- video
- {"codec":"vp9","width":1280,"height":720,"audioCodec":"opus","audioPresent":true}
- summary
- Output is 149460 bytes and the input fixture is 2976898 bytes. The output file is smaller than the input on this clip. Elapsed 455ms is for this environment only.
- elapsedMs
- 455
- elapsedScope
- this environment only
このケースに記録された制限
- Captured on 2026-10-26 in headless Chrome/156.0.8078.47 against the local Video Compressor page at commit bf34759887a62ae15fdb13404a9f2fcf6aa568b9. This case is not part of the 2026-10-02 shutter.
- ffprobe read the output duration as 2.02 seconds against a 2.00 second input. That reading is this file only.
採取時のスクリーンショット
