gst-libav/1.27.2 package update

[octo-sts]

[octo-sts]

🔢 Build Failed: Dependency Version Mismatch

Dependency gstreamer-1.0 found: NO. Found 1.27.1 but need: '>= 1.27.2'

Build Details

Category	Details
Build System	Meson
Failure Point	meson setup configuration during dependency resolution

Root Cause Analysis 🔍

The build requires gstreamer-1.0 version >= 1.27.2 but only version 1.27.1 is available in the build environment. This version mismatch prevents the gst-libav subproject from configuring properly, causing the meson setup to fail when attempting to resolve the gstreamer-1.0 dependency.

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🔍 Build failure fix suggestions

Found similar build failures that have been fixed in the past and analyzed them to suggest a fix:

Similar PRs with fixes

• gst-plugins-bad/1.25.1 package update #39540

Suggested Changes

File: gst-libav.yaml

• version_update at line 3 (package.version field)
  Original:

version: "1.27.2"

Replacement:

version: "1.27.1"

Content:

Update package version to match available GStreamer dependency version

• git_tag_update at line 20 (pipeline git-checkout tag)
  Original:

tag: ${{package.version}}

Replacement:

tag: ${{package.version}}

Content:

Git tag will automatically use the updated package version

• commit_hash_update at line 21 (pipeline git-checkout expected-commit)
  Original:

expected-commit: 285de3cf1de94b5b370a1af39446a7d1498d7c2c

Replacement:

expected-commit: [commit hash for 1.27.1 tag]

Content:

Update expected commit hash to match the 1.27.1 tag

Click to expand fix analysis

Analysis

The similar fix shows a clear pattern: when a GStreamer-related build fails due to version mismatches, the solution is to update the package version to meet the dependency requirements. In the reference case, gst-plugins-bad was updated from version 1.24.11 to 1.25.1 to satisfy a dependency that required >= 1.25.1. The fix involved updating both the version field and the corresponding SHA256 checksum for the new source tarball.

Click to expand fix explanation

Explanation

This fix addresses the root cause by aligning the gst-libav package version with the available GStreamer dependency version. The current build failure occurs because gst-libav version 1.27.2 requires gstreamer-1.0 >= 1.27.2, but only version 1.27.1 is available in the build environment. By downgrading gst-libav to version 1.27.1, it will be compatible with the available GStreamer 1.27.1 dependency. This follows the same pattern as the reference fix where version alignment resolved the dependency mismatch. The git checkout will automatically fetch the correct 1.27.1 tag, and the expected commit hash should be updated to match the commit for that specific tag to ensure build reproducibility.

Click to expand alternative approaches

Alternative Approaches

• Update the GStreamer dependency packages (gstreamer-dev, gst-plugins-base-dev) to version 1.27.2 instead of downgrading gst-libav, though this would require coordinated updates across multiple packages
• Pin to a specific stable GStreamer version across all related packages to avoid version mismatches, but this might delay security updates
• Use a different build approach that allows version flexibility, though this could compromise build reproducibility

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