Demo Video URLs Registry

This document tracks the curated demo video URLs used by the app module. All hard-coded URLs in demo activities (Java + Kotlin/Compose) reference the central registry DemoVideoUrls.java to keep the showcase reproducible.

This registry only governs the app (demo) module. The library modules (gsyVideoPlayer-java, gsyVideoPlayer-exo2, gsyVideoPlayer-compose, etc.) do not ship any URL constants.

Reachable URLs (in use)

Constant	URL	Notes
MP4_BBB	https://www.w3schools.com/html/mov_bbb.mp4	Default MP4 (Big Buck Bunny)
HLS_MUX	https://test-streams.mux.dev/x36xhzz/x36xhzz.m3u8	Default HLS test stream
HLS_BIPBOP_GEAR1	http://devimages.apple.com.edgekey.net/streaming/examples/bipbop_4x3/gear1/prog_index.m3u8	Apple bipbop gear1 (low)
HLS_BIPBOP_GEAR3	http://devimages.apple.com.edgekey.net/streaming/examples/bipbop_4x3/gear3/prog_index.m3u8	Apple bipbop gear3 (high)
SAMPLE_GSY	https://res.exexm.com/cw_145225549855002	GSY sample (legacy demo)
DASH_ENVIVIO	https://dash.akamaized.net/envivio/EnvivioDash3/manifest.mpd	DASH manifest
SUBTITLE_SRT	http://img.cdn.guoshuyu.cn/subtitle2.srt	SRT subtitle sample
SUBTITLE_VTT	https://stdlwcdn.lwcdn.com/i/8fdb4e20-8ebb-4590-8844-dae39680d837/160p.vtt	WebVTT subtitle sample

Logical aliases:

• DEFAULT_VIDEO = MP4_BBB
• DEFAULT_HLS = HLS_MUX
• DEFAULT_AD = HLS_MUX
• DEFAULT_FEATURE = MP4_BBB
• LIST_HORIZONTAL = MP4_BBB
• LIST_VERTICAL = HLS_MUX
• LIST_BBB_FALLBACK = MP4_BBB
• SHORT_FORM_FALLBACK = MP4_BBB

Removed URLs (unreachable, replaced by same-semantic ones)

Removed URL	Status (probe)	Replacement
http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4	connect fail (000)	MP4_BBB (mov_bbb.mp4)
https://cos.icxl.xyz/.../IMG_0382.MP4 (legacy GSY sample)	404	MP4_BBB
http://las-tech.org.cn/.../flipfit-cdn.../video_h1.m3u8	404	HLS_MUX (mux test-streams)
http://7xjmzj.com1.z0.glb.clouddn.com/20171026175005_JObCxCE2.mp4	404	HLS_MUX

The replacement strategy preserves protocol/format semantics: MP4 → MP4, HLS → HLS. The original string literal of the live URL is kept inside DemoVideoUrls.java; demo activities only reference the constant.

Comments cleanup policy

Several demo activities historically contained large blocks of commented-out URLs accumulated during years of debugging. This pass:

• Cleared the L617-L681 dead-URL graveyard inside DetailPlayer.java.
• Cleared per-file 1-3 line dead-URL comments in:
  • DetailFilterActivity.java
  • DetailControlActivity.java
  • DetailTransparentActivity.java
  • WebDetailActivity.java
  • SimpleDetailActivityMode1.java

Other comment-only references that still describe valid protocol features (e.g. rawresource://, assets:///, ijkhttphook: prefixes) are kept as documentation hints.

Adding new URLs

1. Probe the URL with curl -fIL (or curl --range 0-1024 -o /dev/null) and confirm it returns 200/206/302/304.
2. Add a public static final String to DemoVideoUrls.java.
3. From Kotlin/Compose code, reference via DemoVideoUrls.NAME directly or delegate through a const val (Java compile-time constants are propagable as Kotlin const val).
4. Re-run ./gradlew :app:assembleDebug :gsyVideoPlayer-compose:assembleDebug.

Verification

• :app:assembleDebug BUILD SUCCESSFUL
• :gsyVideoPlayer-compose:assembleDebug BUILD SUCCESSFUL
• Emulator smoke: MainActivity → DetailControlActivity / DetailPlayer reach GSYVideoPlayer changeUiToNormal + CCodec setup formats, no player_error / FATAL in logcat.
• Monkey 100 events on com.example.gsyvideoplayer, 0 FATAL.