Media diagnostics · Primary-source explanation; examples are illustrative. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Inspect the render choices
Kdenlive uses preview aids during editing, but its rendering documentation also exposes explicit options to render at preview resolution and to use proxy clips. These can be useful for a quick checking file. They mean that the presence of original high resolution source media in the project does not alone prove that a particular exported file used it. Inspect the actual job settings when an exported result looks unexpectedly soft.
Create two deliberately labelled outputs
For an original workflow exercise, export a brief permitted timeline section once as a checking copy and once with the intended final settings. Give the outputs names which clearly distinguish their purpose. Record the dimensions and whether the proxy or preview choices were enabled. Compare the same scene, including a fine text detail, rather than opening unrelated moments. These are suggested comparisons, not results of a Kdenlive test performed for this website.
Keep the source available for final rendering
Do not delete original media merely because a proxy allows smooth editing. Preserve the project dependencies and verify the final output file itself after the render completes. Also check the selected zone so a short test is not mistaken for the full programme. The important decision is whether the current job is a disposable preview or the deliverable. This does not establish native camera detail, recording rights or compatibility with every playback device.