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v1.19.2

modelcontextprotocol/inspectorv1.19.2Jun 28, 2026by github-actions[bot]

AI Summary

This release focuses on stability and performance improvements across RTSP, WebRTC, and Raspberry Pi Camera modules. It introduces new RTSP configuration options, unified RPI camera encoding settings, and fixes critical bugs including an MP4 muxer panic and race conditions.

Key Highlights

  • Adds `rtspScale` parameter to inject Scale headers in RTSP PLAY requests.
  • Improves RPI Camera support by enabling MJPEG encoding for primary streams and H264 for secondary streams, with unified profile/level parameters.
  • Fixes a panic in the MP4 muxer and resolves race conditions preventing stream decoding.
  • Enhances WebRTC stability by skipping unresolvable `webrtcAdditionalHosts` entries instead of aborting.

Breaking Changes

  • The parameters `rpiCameraHardwareH264Profile`, `rpiCameraHardwareH264Level`, `rpiCameraSoftwareH264Profile`, and `rpiCameraSoftwareH264Level` have been replaced by unified `rpiCameraH264Profile` and `rpiCameraH264Level` parameters.

New Features

  • RTSP: Support for FU-A and STAP-A packets with H264 packetization-mode 0.
  • RPI Camera: Support for encoding primary stream with MJPEG.
  • RPI Camera: Support for encoding secondary stream with H264.
  • General: Improved HTTP server performance by avoiding request cloning.

Full Release Notes

## Fixes and improvements

General

* playback: fix panic when MP4 muxer flushes with no samples (https://github.com/bluenviron/mediamtx/issues/5867)
* redact sensitive headers in HTTP debug logs (https://github.com/bluenviron/mediamtx/issues/5873)
* fix(recordstore): decode timezone offset minutes correctly (https://github.com/bluenviron/mediamtx/issues/5884)
* improve HTTP server performance (https://github.com/bluenviron/mediamtx/issues/5886) log incoming requests without cloning.
* prevent truncation of 64-bit values on 32-bit platforms (https://github.com/bluenviron/mediamtx/issues/5902)

RTSP

* add rtspScale parameter to inject Scale header on PLAY (https://github.com/bluenviron/mediamtx/issues/5800)
* client: switch automatically to TCP in case of H264 packetization-mode=0 (https://github.com/bluenviron/gortsplib/issues/1086)
* support VP8 streams with multiple partitions (https://github.com/bluenviron/mediamtx/issues/5426) (https://github.com/bluenviron/gortsplib/issues/1090)
* allow FU-A and STAP-A packets with H264 packetization-mode 0 (https://github.com/bluenviron/mediamtx/issues/5887) (https://github.com/bluenviron/gortsplib/issues/1092)

WebRTC

* skip unresolvable webrtcAdditionalHosts entries instead of aborting (https://github.com/bluenviron/mediamtx/issues/5845)

RPI Camera

* support encoding primary stream with MJPEG (2/2) (https://github.com/bluenviron/mediamtx/issues/5892)
* support encoding secondary stream with H264 (2/2) (https://github.com/bluenviron/mediamtx/issues/4485) (https://github.com/bluenviron/mediamtx/issues/5898)
* add unified rpiCameraH264Profile, rpiCameraH264Level params (https://github.com/bluenviron/mediamtx/issues/5894) These replace rpiCameraHardwareH264Profile, rpiCameraHardwareH264Level, rpiCameraSoftwareH264Profile, rpiCameraSoftwareH264Level.
* fix race condition that prevents decoding the stream (https://github.com/bluenviron/mediamtx-rpicamera/issues/109) (https://github.com/bluenviron/mediamtx/issues/5861) When a player immediately connects to a newly-created stream, SPS/PPS might not be available, neither in the SDP and neither in-band. Prevent the issue by always sending SPS/PPS in-band.
* improve performance by computing frame size once (https://github.com/bluenviron/mediamtx-rpicamera/issues/111)
* fix wrong timestamp being passed to openh264 (https://github.com/bluenviron/mediamtx-rpicamera/issues/114)

Dependencies

* code.cloudfoundry.org/bytefmt updated from v0.76.0 to v0.78.0
* github.com/abema/go-mp4 updated from v1.6.0 to v1.7.1
* github.com/bluenviron/gortsplib/v5 updated from v5.6.0 to v5.6.1
* github.com/bluenviron/mediacommon/v2 updated from v2.9.0 to v2.9.1
* github.com/matthewhartstonge/argon2 updated from v1.5.4 to v1.5.5
* github.com/pion/sdp/v3 updated from v3.0.18 to v3.0.19
* github.com/quic-go/webtransport-go updated from v0.10.0 to v0.11.0
* github.com/pion/srtp/v3 updated from v3.0.11 to v3.0.12
* github.com/bluenviron/mediamtx-rpicamera updated from v2.6.0 to v2.8.0

## Security

Binaries are compiled from source code by the [Release workflow](https://github.com/bluenviron/mediamtx/actions/workflows/release.yml), which is a fully-visible process that prevents any change or external interference in produced artifacts.

Checksums of binaries are also published in a public blockchain by using [GitHub Attestations](https://docs.github.com/en/actions/concepts/security/artifact-attestations), and they can be verified by running:

```
ls mediamtx_* | xargs -L1 gh attestation verify --repo bluenviron/mediamtx
```

You can verify checksums of binaries by downloading `checksums.sha256` and running:

```
cat checksums.sha256 | grep "$(ls mediamtx_*)" | sha256sum --check
```