Artifacts in HEVC Videos with Hardware Decoding Enabled on Intel® Arc™ Graphics Cards
Content Type: Troubleshooting | Article ID: 000101613 | Last Reviewed: 08/04/2025
When HEVC hardware decoding is enabled, artifacts may appear in videos. Turning off hardware decoding fixes the problem, suggesting that software decoding gets it right. Issue can be seen in different media players like MPC-HC and VLC Media Player
According to the H.265 recommendation, section 7.4.9.9 Motion vector difference semantics, The value of MvdLX[ x0 ][ y0 ][ compIdx ] shall be in the range of −2^15 to 2^15 − 1, inclusive.
For values outside this range, corruptions may be seen.
| Note | Section number may vary depending on the document version. Section 7.4.9.9 is valid for ITU-T H.265 (V10) (07/2024) |