FFmpeg

283MB

Tree: 867381b8b5

Author	SHA1	Message	Date
Mark Thompson	a670eea560	vf_hwmap: Properly free a locally derived device	8 years ago
Mark Thompson	5635c80bf5	vf_hwmap: Add missing error code	8 years ago
Mark Thompson	81a4cb8e58	vf_hwmap: Add reverse mapping for hardware frames This is something of a hack. It allocates a new hwframe context for the target format, then maps it back to the source link and overwrites the input link hw_frames_ctx so that the previous filter will receive the frames we want from ff_get_video_buffer(). It may fail if the previous filter imposes any additional constraints on the frames it wants to use as output.	8 years ago
Mark Thompson	38cb05f1c8	vf_hwmap: Add device derivation Also refactor a little and improve error messages to make failure cases easier to understand.	8 years ago
Mark Thompson	124e26971e	lavfi: Hardware map filter Takes a frame associated with a hardware context as input and maps it to something else (another hardware frame or normal memory) for other processing. If the frame to map was originally in the target format (but mapped to something else), the original frame is output. Also supports mapping backwards, where only the output has a hardware context. The link immediately before will be supplied with mapped hardware frames which it can write directly into, and this filter then unmaps them back to the actual hardware frames.	8 years ago