ossrs/ffmpeg-webrtc
Nov 2024 – Feb 2025
3 Months active
Languages Used
C
Technical Skills
AVFormatAudio CodecsClosed CaptioningEmbedded SystemsFFmpeg DevelopmentMPEG-TS
Scott Theisen
PROFILE
Scott Theisen
Worked on the ossrs/ffmpeg-webrtc repository to enhance MPEG-TS parsing, closed captioning, and multimedia stream handling over a three-month period. Delivered features such as ATSC E-AC-3 audio support, DVB descriptor tag parsing, and IVTV VBI data demuxing, focusing on interoperability and compatibility with broadcast and embedded systems. Improved code maintainability by refactoring stream type logic, replacing magic numbers with named constants, and clarifying network-specific caption formats. Addressed buffer management for closed caption data to prevent loss during frame skips. The work relied on C and low-level programming, leveraging FFmpeg development expertise to strengthen real-time streaming reliability.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
10Total
Bugs
1
Commits
10
Features
5
Lines of code
460
Activity Months3
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Work History
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for ossrs/ffmpeg-webrtc focusing on code clarity and maintainability. Delivered a targeted refactor renaming the CC_FORMAT_DVB_0502 enum to CC_FORMAT_DISH to reflect Dish Network usage. Updated enum definitions, conditional checks, and related string literals in mpeg12dec.c with no functional changes. The change improves clarity and future maintainability for network-specific format handling.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for ossrs/ffmpeg-webrtc focusing on code clarity and maintainability. Delivered a targeted refactor renaming the CC_FORMAT_DVB_0502 enum to CC_FORMAT_DISH to reflect Dish Network usage. Updated enum definitions, conditional checks, and related string literals in mpeg12dec.c with no functional changes. The change improves clarity and future maintainability for network-specific format handling.
February 2025
December 2024
6 Commits • 3 Features
Dec 1, 2024December 2024 milestone for ossrs/ffmpeg-webrtc delivered a set of targeted feature enhancements and robustness fixes across MPEG-TS demux/muxing, IVTV subtitles, V4L2 interlacing, and CC data handling. The work focused on maintainability, compatibility with legacy and embedded pipelines, and correctness of framing and caption data, ensuring better reliability in real-time and streaming scenarios.
December 2024
6 Commits • 3 Features
Dec 1, 2024December 2024 milestone for ossrs/ffmpeg-webrtc delivered a set of targeted feature enhancements and robustness fixes across MPEG-TS demux/muxing, IVTV subtitles, V4L2 interlacing, and CC data handling. The work focused on maintainability, compatibility with legacy and embedded pipelines, and correctness of framing and caption data, ensuring better reliability in real-time and streaming scenarios.
November 2024
3 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11 focusing on MPEG-TS parsing enhancements in ossrs/ffmpeg-webrtc, delivering ATSC E-AC-3 support, DVB descriptor tag constants, and DVB CC format 0x0502 handling in the MPEG-1/2 decoder. The work strengthens broadcast interoperability by extending MPEG-TS parsing capabilities and ensuring correct DVB descriptor and CC content handling. These changes enhance streaming reliability and compatibility across platforms used in WebRTC workflows.
3 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11 focusing on MPEG-TS parsing enhancements in ossrs/ffmpeg-webrtc, delivering ATSC E-AC-3 support, DVB descriptor tag constants, and DVB CC format 0x0502 handling in the MPEG-1/2 decoder. The work strengthens broadcast interoperability by extending MPEG-TS parsing capabilities and ensuring correct DVB descriptor and CC content handling. These changes enhance streaming reliability and compatibility across platforms used in WebRTC workflows.
November 2024
Activity
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Quality Metrics
Correctness97.0%
Maintainability94.0%
Architecture90.0%
Performance88.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
AVFormatAudio CodecsBuffer ManagementCC ProgrammingClosed CaptioningCodec DevelopmentCodec ImplementationCodec developmentDemuxingEmbedded SystemsFFmpegFFmpeg DevelopmentLow-level ProgrammingLow-level programming
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