Video stills: past a black opening. vmedia took its still at half a second, and a clip that fades in from black (7 of the 68 made in three hours) gave a black tile. Each frame's mean brightness now comes out of ffmpeg (signalstats YAVG on pipe:2 — /dev/stderr can't be opened from a Bun-spawned pipe), and a dark one sends it further in (2, 5, 10, 20, 40 s) for the first bright frame; a clip dark all the way through (a night scene, a boot screen) gets its brightest frame with the levels stretched (normalize). Stills are made again under a new key and URL (v=4), so neither the server's nor the CDN's black copies are served.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Vps2H27rhbG9ZqseGfMrc3

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/video-fallback-test.js b/tools/video-fallback-test.js
index 66becc2..85250c0 100644
--- a/tools/video-fallback-test.js
+++ b/tools/video-fallback-test.js
@@ -93,7 +93,7 @@ try {
 
   console.log('\n[no poster in the post]');
   const p0 = await player('garden');
-  check('the server\'s still is the poster', p0.poster === 'https://v3.coinos.io/vmedia/thumb.jpg?u=' + encodeURIComponent(CLIP.saved), p0.poster);
+  check('the server\'s still is the poster', p0.poster === 'https://v3.coinos.io/vmedia/thumb.jpg?v=4&u=' + encodeURIComponent(CLIP.saved), p0.poster);
 
   console.log('\n[waiting for a tap]');
   await page.evaluate(new Function(`${box('garden')}.scrollIntoView({ block: 'center' })`));