0b7e2d0a5b
- Created complete documentation in docs/ directory - Added PROJECT_OVERVIEW.md with feature highlights and getting started guide - Added ARCHITECTURE.md with system design and technical details - Added SECURITY.md with comprehensive security implementation guide - Added DEVELOPMENT.md with development workflows and best practices - Added DEPLOYMENT.md with production deployment instructions - Added API.md with complete REST API documentation - Added CONTRIBUTING.md with contribution guidelines - Added CHANGELOG.md with version history and migration notes - Reorganized all documentation files into docs/ directory for better organization - Updated README.md with proper documentation links and quick navigation - Enhanced project structure with professional documentation standards
28 lines
1.3 KiB
Markdown
28 lines
1.3 KiB
Markdown
FFmpeg ABR Profiles (Examples)
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This project ships an example ABR pipeline in `deploy/abr.sh`. Below are suggested profiles and flags you can adapt.
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Targets (H.264 + AAC, 48 fps GOP=48):
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- 360p: 800 kbps (maxrate 856k, bufsize 1200k)
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- 480p: 1400 kbps (maxrate 1498k, bufsize 2100k)
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- 720p: 2800 kbps (maxrate 2996k, bufsize 4200k)
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Recommended flags:
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- Video: `-c:v libx264 -preset veryfast -g 48 -sc_threshold 0 -filter:v "scale=w=-2:h=<height>"`
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- Audio: `-c:a aac -b:a 128k -ac 2`
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- HLS: `-f hls -hls_time 4 -hls_playlist_type event -hls_flags independent_segments`
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- Var streams: `-var_stream_map 'v:0,a:0 v:1,a:1 v:2,a:2'`
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- Output pattern: `-master_pl_name master.m3u8 -hls_segment_filename /var/www/hls/abr/${ABR_STREAM_KEY}/%v/seg_%06d.ts /var/www/hls/abr/${ABR_STREAM_KEY}/%v/index.m3u8`
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Usage:
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- Set `ABR_STREAM_KEY` to the incoming RTMP stream key used by SRS.
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- Start the ABR container (already included in docker-compose) to generate `/hls/abr/<key>/{0,1,2}/index.m3u8` and `master.m3u8`.
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SRS-based Transcoding (Optional)
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SRS supports an internal `transcode` directive. If you prefer SRS to run FFmpeg for you, add a `transcode` block to `deploy/srs.conf` mapping the input app/stream to multi-rendition outputs, and write resulting HLS to the same `/srs/hls` volume.
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