René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"receive_image() succeeds but returns all-zero buffer (black frame) with OBS Spout2 sender","articleBody":"Hi, thank you for this library.\n\nProblem\nI can successfully connect to an OBS Studio Spout2 sender (Spout_OBS_Filter), receiver.receive() works, and receive_image() returns True. However, the received buffer is all zeros , resulting in a completely black image in OpenCV.\n\nWhat works\nOfficial Spout2 Receiver.exe displays the content correctly .\nSpoutUtils can see the sender and correct resolution (1920x1032).\nTried both invert=True and False.\n\nWhat I tried\nUsing the official examples :preview_example.py , and it does not show anything \n\nEnvironment\nWindows 11 x64\nPython 3.13\nLatest SPOUT2ForPython (from git)\nOBS with Off-World-Live Spout2 plugin\nSender is created via Spout2 Output (filter on a source)\n\nIt seems like a texture sharing / mapping issue specific to the Python bindings (ctypes + SpoutLibrary.dll), while native applications work fine.Is there any known limitation with OBS Spout2 Output, or any additional flags / calls needed for the receiver to get actual texture data?Thanks in advance!\n\n\n\n\n\n","author":{"url":"https://github.com/sugphaze","@type":"Person","name":"sugphaze"},"datePublished":"2026-07-06T05:41:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1/SPOUT2ForPython/issues/1"}