Which has better activity and maintenance signals?

Based on the RepoPilot signals provided:

google/exoplayer shows declining activity:

• Verdict: WAIT — Slowing — last commit 9 months ago
• The README explicitly states the project is deprecated as of 2024-04-03, with development moved to androidx/media
• Last release was exoplayer:2.19.1; no further releases planned
• OpenSSF Scorecard: 3.1/10 (weak across CI-Tests, Dependency-Update-Tool, SAST)

liyifeng1994/ssm has no maintenance signals provided, but contextually:

• No activity/freshness data from RepoPilot
• Appears to be a learning project (README states it's "适合刚接触spring的童鞋" — suitable for beginners learning Spring)
• References Java 1.8 and Tomcat 8.5, suggesting older tech stack
• No deprecation notice, but also no signals of active maintenance

Verdict: Neither repository shows strong maintenance signals. google/exoplayer is explicitly deprecated and stale (9 months without commits). liyifeng1994/ssm lacks maintenance data but appears to be an educational/reference project rather than an actively maintained library.

If you need an actively maintained media library, the README for google/exoplayer directs you to androidx/media instead [google/exoplayer README].

FOLLOW_UPS:

• What is your use case for choosing between these?
• Are you considering migrating from ExoPlayer to Media3?
• Does liyifeng1994/ssm fit your Spring learning needs?