{
  "date": "2026-10-15",
  "environment": "Local FFmpeg and ffprobe on a generated 10s 640x360 testsrc2 clip with a 440 Hz AAC tone; CompressVid job builders used for hosted paths in related posts.",
  "source": {
    "command": "ffmpeg -f lavfi -i testsrc2=duration=10:size=640x360:rate=30 -f lavfi -i sine=frequency=440:duration=10 -c:v libx264 -pix_fmt yuv420p -c:a aac -b:a 128k -ar 48000 -ac 2 -shortest source.mp4"
  },
  "outputs": [
    {
      "file": "edit-crop.mp4",
      "bytes": 671793,
      "duration": "10.005000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 320,
          "h": 320,
          "br": "399390",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "127984",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "edit-gain.mp4",
      "bytes": 1161792,
      "duration": "10.005000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 640,
          "h": 360,
          "br": "791276",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "128032",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "edit-mute.mp4",
      "bytes": 993368,
      "duration": "10.000000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 640,
          "h": 360,
          "br": "791276",
          "sr": null,
          "ch": null
        }
      ]
    },
    {
      "file": "edit-resize.mp4",
      "bytes": 384814,
      "duration": "10.005000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 320,
          "h": 180,
          "br": "169768",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "127984",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "edit-rotate.mp4",
      "bytes": 1026322,
      "duration": "10.005000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 360,
          "h": 640,
          "br": "682910",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "127984",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "edit-trim.mp4",
      "bytes": 454773,
      "duration": "4.000000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 640,
          "h": 360,
          "br": "768956",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "128351",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "source-silent.mp4",
      "bytes": 993368,
      "duration": "10.000000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 640,
          "h": 360,
          "br": "791276",
          "sr": null,
          "ch": null
        }
      ]
    },
    {
      "file": "source.mp4",
      "bytes": 1161779,
      "duration": "10.000000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "h264",
          "type": "video",
          "w": 640,
          "h": 360,
          "br": "791276",
          "sr": null,
          "ch": null
        },
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "128083",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "extract-160.mp3",
      "bytes": 201268,
      "duration": "10.005333",
      "format": "mp3",
      "streams": [
        {
          "codec": "mp3",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "160000",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "extract-aac.m4a",
      "bytes": 163133,
      "duration": "10.000000",
      "format": "mov,mp4,m4a,3gp,3g2,mj2",
      "streams": [
        {
          "codec": "aac",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "128083",
          "sr": "48000",
          "ch": 2
        }
      ]
    },
    {
      "file": "extract.wav",
      "bytes": 1921102,
      "duration": "10.005333",
      "format": "wav",
      "streams": [
        {
          "codec": "pcm_s16le",
          "type": "audio",
          "w": null,
          "h": null,
          "br": "1536000",
          "sr": "48000",
          "ch": 2
        }
      ]
    }
  ],
  "notes": [
    "edit-trim is a 2-6s keep (4.000s measured).",
    "edit-crop is 320x320 at offset 160:20.",
    "edit-rotate is transpose=1 so 640x360 becomes 360x640.",
    "edit-mute is -c copy -an: picture bitstream unchanged, audio stream absent.",
    "extract-aac.m4a uses -c:a copy: AAC payload is the source audio stream.",
    "No customer media, accounts, credentials, job IDs, or signed URLs are included."
  ]
}