{
  "version": 1,
  "source": {"seconds":4,"width":480,"height":270,"fps":24,"audioHz":440,"sampleRate":48000,"channels":2},
  "deadlineMs":15000,
  "slowBytesPerSecond":65536,
  "slowChunkBytes":4096,
  "cases":[
    {"id":"P01","name":"H.264 / AAC, MP4, trailing index","file":"P01-tail.mp4","mime":"video/mp4","kind":"encode","args":["-c:v","libx264","-preset","fast","-crf","23","-pix_fmt","yuv420p","-c:a","aac","-b:a","96k"]},
    {"id":"P02","name":"Same packet payloads, MP4 faststart","file":"P02-fast.mp4","mime":"video/mp4","kind":"remux","from":"P01","args":["-c","copy","-movflags","+faststart"]},
    {"id":"P03","name":"H.264 4:4:4 / AAC, MP4","file":"P03-444.mp4","mime":"video/mp4","kind":"encode","args":["-c:v","libx264","-preset","fast","-crf","23","-pix_fmt","yuv444p","-c:a","aac","-b:a","96k","-movflags","+faststart"]},
    {"id":"P04","name":"HEVC 10-bit / AAC, MP4","file":"P04-hevc.mp4","mime":"video/mp4","kind":"encode","args":["-c:v","libx265","-preset","fast","-crf","28","-pix_fmt","yuv420p10le","-tag:v","hvc1","-x265-params","pools=none:frame-threads=1:wpp=0:log-level=error","-c:a","aac","-b:a","96k","-movflags","+faststart"]},
    {"id":"P05","name":"VP9 / Opus, WebM","file":"P05-vp9.webm","mime":"video/webm","kind":"encode","args":["-c:v","libvpx-vp9","-deadline","good","-cpu-used","5","-row-mt","0","-crf","32","-b:v","0","-pix_fmt","yuv420p","-c:a","libopus","-b:a","96k"]},
    {"id":"P06","name":"AV1 / Opus, WebM","file":"P06-av1.webm","mime":"video/webm","kind":"encode","args":["-c:v","libsvtav1","-preset","12","-crf","35","-pix_fmt","yuv420p","-c:a","libopus","-b:a","96k"]},
    {"id":"P07","name":"ProRes 422 / PCM, MOV","file":"P07-prores.mov","mime":"video/quicktime","kind":"encode","args":["-c:v","prores_ks","-profile:v","2","-pix_fmt","yuv422p10le","-c:a","pcm_s16le"]},
    {"id":"P08","name":"Deliberately truncated MP4 (first half)","file":"P08-truncated.mp4","mime":"video/mp4","kind":"truncate","from":"P01"}
  ]
}