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MILAVERR_REQUESTEDTEXTURETOOBIG
MILAVERR_REQUESTEDTEXTURETOOBIG belongs to WPF video acceleration and texture resources. The video presentation path requested a texture larger than the device or MIL path can support.
Subsystem context
Accelerated media playback allocates decode surfaces, mixer intermediates, presentation textures, and compositor resources under device-specific dimension and format limits. “Out of resources,” “acceleration unavailable,” and “texture too large” describe different decisions. Capture requested dimensions and formats before falling back, because software playback may hide the original GPU contract.
texture-dimension and allocation validation for decoded or transformed video.
Isolation procedure
Keep the source fixed and vary output dimensions, hardware acceleration, adapter, and rendering tier separately. A successful low-resolution or software path narrows the resource boundary but does not prove the original accelerated configuration was valid.
- render at native source size.
- Remove scaling and effects that enlarge intermediate bounds.
- Test a smaller known-good frame size.
- query device limits before creating the presentation resource.
Evidence to preserve
- Requested width, height, format, mip or array characteristics
- Device maximum texture dimensions and feature level
- DPI scaling, transforms, effects, and intermediate output bounds
- Source coded size versus presentation size
Do not hide the original condition
Unlike MILAVERR_INSUFFICIENTVIDEORESOURCES, this can fail deterministically even on an otherwise idle GPU because the requested dimension exceeds a limit. Do not treat the constant name as a complete root-cause report; preserve the nested media, COM, graphics, or driver result before resetting the player.
Technical references
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