If an error occurs for whatever reason (e.g. codec not supporting odd
frame sizes), the GStreamer pipeline will drop the current buffer,
causing the encoder to be stuck waiting for the sample. So this patch
tracks error notifications and ensures we don't wait for a sample if
none will come.
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
This way the video encoder is not forced to use malloc()/free().
This also allows more flexibility in how the video encoder manages the
buffer which allows for a zero-copy implementation in both video
encoders.
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
The Spice server administrator can specify the encoder and codec
preferences to optimize for CPU or bandwidth usage. Preferences are
described in a semi-colon separated list of encoder:codec pairs.
The server has a default preference list which can explicitly be
selected by specifying 'auto'.
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
This introduces a pared down GStreamer-based video encoder to serve as
the basis for later enhancements.
In this form the new encoder supports both regular and sized streams
but lacks any rate control. It should still work fine if bandwidth is
sufficient such as on LANs.
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
