Live Replays & Event Recordings

Live replays and event recordings are typically large files with many segments, placing high demands on download tool memory management and stability. FlowPick's streaming write and concurrency control mechanisms are particularly suited for these scenarios.

Supported Platforms

The following platforms have been community-verified to work with FlowPick for detecting and downloading live replays:

Platform Compatibility Notes

Not all live platforms work with FlowPick. The following scenarios may cause detection or download failure:

Characteristics of Live Replays

Compared to regular VOD videos, live replays have these characteristics:

Workflow

Step 1: Wait for Live Stream to End

During live broadcasts, the segment list continuously updates. Recommend waiting until the stream completely ends before downloading:

1. Confirm stream has ended, page shows "Replay" or "Recording"
2. Refresh page to ensure complete replay manifest loads
3. Play from beginning for a few seconds to trigger media detection

Step 2: Configure Download Parameters

Large file downloads require special attention to parameter configuration:

Why recommend TS format?

Live replay files are usually very large (5GB+). Choosing TS format skips the FFmpeg remuxing step and directly concatenates segments in binary. This has two benefits:

1. Faster download (saves remuxing time)
2. Lower memory usage (no need to load FFmpeg WASM)

TS files can be opened with VLC, PotPlayer, IINA, etc. If MP4 format is needed later, convert locally with native FFmpeg, which is much faster than browser WASM version.

Step 3: Monitor Download Progress

Long downloads need attention:

• Keep browser window active (don't minimize; some browsers limit background tab performance)
• Periodically check download progress and speed
• Ensure computer doesn't enter sleep mode
• Maintain stable network connection

Step 4: Verify File

After download completes:

1. Check if file size is reasonable (refer to platform estimate)
2. Open with player, scrub to different timestamps to verify integrity
3. If file is corrupted, re-download with reduced concurrency count

Large File Download Strategy

Memory Management

FlowPick's streaming write mode (File System Access API) maintains constant memory usage when handling large files:

File Size    Memory Usage
1GB     →    ~16MB (write buffer)
5GB     →    ~16MB
10GB    →    ~16MB
20GB    →    ~16MB

Prerequisite: Using Chrome/Edge browser with File System Access API enabled.

Time Estimates

Taking 10GB live replay as example, estimated download time under different network conditions:

Actual speeds may be lower than theoretical values due to CDN throttling policies.

Interrupt Recovery

Current version does not support resumable downloads. If download is interrupted:

1. Check interruption cause (network disconnect, computer sleep, browser crash)
2. Resolve issue and restart download
3. Recommend downloading large files in stable network environment
4. Consider downloading during nighttime or non-use periods

Event Recording Scenarios

Esports Matches

Esports match recordings typically have these characteristics:

• Long duration (BO3/BO5 format can be 3-5 hours)
• High quality requirements (need clear game details)
• May need to save multiple matches

Recommendations:

• Prioritize highest quality
• Organize folders by event and match number
• Use TS format to speed up downloads

Sports Events

Traditional sports event recordings:

• Usually have multiple commentary versions
• Some platforms provide multi-angle replays
• File size varies by sport type (football > basketball > table tennis)

Recommendations:

• Confirm required commentary version before downloading
• Multi-angle replays need separate download for each angle

FAQ

Speed drops halfway through download?

Possible causes:

1. CDN Throttling: Some platforms throttle long-duration downloads. Reducing concurrency may help
2. Network Fluctuation: Check local network status
3. Insufficient Browser Resources: Close other tabs to free memory

Second half of downloaded file won't play?

Possible causes:

1. Live replay not fully generated: Wait 10-30 minutes after stream ends before downloading
2. Segment download failure: Some segments fail even after retry. Reduce concurrency and retry
3. CDN Node Issue: Try refreshing page to get new CDN node

Can I download only part of a live replay?

Current version downloads complete replays. If you need to extract clips:

1. First download complete replay
2. Use local tools (FFmpeg, LosslessCut, etc.) for trimming

Storage Recommendations

Space Planning

Long-term Storage

• Use external hard drive or NAS for storing large replay files
• Consider H.265 transcoding to reduce file size (requires local tools)
• Periodically clean up old replays no longer needed

Copyright & Compliance Statement

Before using FlowPick to download live replays and event recordings, please understand and comply with these principles:

Permitted Usage Scope

Platform Terms of Service

• Most live platforms' user agreements prohibit downloading replay content
• Before using FlowPick, review target platform's user agreement and terms of service
• If platform terms prohibit downloading, please respect their rules
• As tool provider, FlowPick is not responsible for users' download behavior

Event Copyright Special Notice

• Sports events and esports typically involve multi-party copyright (event organizers, broadcasters, platforms)
• Event recording copyright protection is usually stricter than regular live replays
• Event recordings are limited to personal viewing only; strictly prohibit public distribution or commercial use
• Some paid events (UFC PPV, boxing PPV) have DRM-protected replays that cannot be downloaded

Risk Warning

• Some platforms may detect abnormal download behavior and take restrictive measures (account bans, IP restrictions)
• Recommend controlling download frequency, avoid mass downloads in short periods
• Consequences of download behavior are borne by users themselves
• Live replays usually have retention periods; recommend completing downloads within validity period

Related Documentation

• Video Sniffing — Video detection principles, HLS/DASH protocol support, encrypted stream decryption
• Download Engine Architecture — Large file write strategy, memory management, and three-tier write mechanism
• Batch Download — Queue management for multi-match recording batch downloads
• Format Conversion — Differences between TS and MP4 formats and remuxing principles
• Configuration Reference — Concurrent threads, output format, save directory configuration
• Usage Guide — Basic operation guide and large file downloads
• Browser Compatibility — File System Access API browser support status
• Common Issues Troubleshooting — Diagnosis for download interruptions, slow speeds, unplayable files, etc.
• Known Limitations — DRM protection, dynamic token, resumable download, and other technical limitations
• Privacy & Security — Zero data collection promise and local processing explanation