A C# API to read, write and create MP4 files. No native dependencies, portable netstandard2.0. Supports H264/H265 for video and AAC for audio. Ported into C# from Java mp4parser.
active 2023-08-18 → 2026-03-20 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 946 days from 2023-08-18 to 2026-03-20. Pushes: 5 total, peak 2 in a day. Pull requests: 3 total, peak 1 in a day. Issues: 14 total, peak 3 in a day. Comments: 15 total, peak 3 in a day. Stars: 35 total, peak 4 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| jimm98y | 25 | 5 | 2 | 10 |
| bentorkington | 4 | 0 | 1 | 2 |
| XingXing-design | 3 | 0 | 0 | 2 |
| raffaeler | 2 | 0 | 0 | 1 |
| JanssonTheBest | 1 | 0 | 0 | 0 |
| KimSectra | 1 | 0 | 0 | 0 |
| orosbogdan | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#11jimm98y2026-03-20 19:01Issue with elementary stream descriptors for AAC files encoded with FFMpeg's aac encoder
- Issue comment#11jimm98y2026-03-19 22:21Issue with elementary stream descriptors for AAC files encoded with FFMpeg's aac encoder
- Issue#3jimm98y2025-10-26 14:02Writing h265 mp4 does not correctly escape Annex-B sequences inside NALs, leading to image artifacts
- Issue#9jimm98y2025-10-26 14:01Can SharpmP4Parser create video tracks?
- Issue#10KimSectra2025-09-19 13:29Strong name signing of the package
- Issue comment#9XingXing-design2025-04-28 01:13Can SharpmP4Parser create video tracks?
- Issue comment#9XingXing-design2025-04-28 00:57Can SharpmP4Parser create video tracks?
- Issue comment#4bentorkington2025-04-27 00:50Any plans to add Opus support from SharpMP4?
- Issue#4jimm98y2025-04-26 20:59Any plans to add Opus support from SharpMP4?
- Issue#7jimm98y2025-04-26 20:56iOS / Android support?
- Issue comment#9jimm98y2025-04-26 20:53Can SharpmP4Parser create video tracks?
- Issue#9XingXing-design2025-04-26 09:21Can SharpmP4Parser create video tracks?
- Releasejimm98y2025-04-12 20:26v0.0.5
- Issue comment#8raffaeler2025-02-24 07:44Frame by frame
- Issue comment#8jimm98y2025-02-23 21:30Frame by frame
- Issue#8raffaeler2025-02-22 20:18Frame by frame
- Issue comment#7jimm98y2024-11-17 14:27iOS / Android support?
- Issue#7orosbogdan2024-11-17 13:22iOS / Android support?
- Releasejimm98y2024-11-09 15:48v0.0.4
- Issue#5jimm98y2024-10-09 06:41BouncyCastle.Cryptography 2.3.0 has vulnerabilities
- Pull request#6jimm98y2024-10-09 06:41
- Issue comment#6jimm98y2024-10-05 15:25fix #5: update BouncyCastle.Cryptography to 2.4.0
- Pull request#6jimm98y2024-10-05 15:21
- Pull request#6bentorkington2024-10-04 21:57
- Issue#5bentorkington2024-10-04 21:51BouncyCastle.Cryptography 2.3.0 has vulnerabilities
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 35 stars here means stars gained during the window, not the repo's star count.