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vaapivc1dec decodes from VC1 bitstreams to surfaces suitable for the vaapisink or vaapipostproc elements using the installed VA-API back-end.
In the case of OpenGL based elements, the buffers have the GstVideoGLTextureUploadMeta meta, which efficiently copies the content of the VA-API surface into a GL texture.
Also it can deliver normal video buffers that can be rendered or processed by other elements, but the performance would be rather bad.
1 |
gst-launch-1.0 filesrc location=~/elephants_dream.wmv ! asfdemux ! vaapivc1dec ! vaapisink |
plugin |
vaapi |
author |
Gwenole Beauchesne <gwenole.beauchesne@intel.com>, Halley Zhao <halley.zhao@intel.com>, Sreerenj Balachandran <sreerenj.balachandran@intel.com>, Wind Yuan <feng.yuan@intel.com> |
class |
Codec/Decoder/Video/Hardware |
name |
sink |
direction |
sink |
presence |
always |
details |
video/x-wmv, wmvversion=(int)3, format=(string){ WMV3, WVC1 } |
name |
src |
direction |
source |
presence |
always |
details |
video/x-raw(memory:VASurface), format=(string){ ENCODED, NV12, I420, YV12, YUY2, UYVY, Y210, P010_10LE, AYUV, Y410 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ] |
video/x-raw(meta:GstVideoGLTextureUploadMeta), format=(string){ RGBA, BGRA }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ] | |
video/x-raw, format=(string){ NV12, I420, YV12, YUY2, UYVY, Y210, P010_10LE, AYUV, Y410 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ] | |
video/x-raw(memory:DMABuf), format=(string){ I420, YV12, RGBA }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ] |