This prevents the bit rate from going insanely high on fast networks
for no visible video quality improvement.
Signed-off-by: Francois Gouget <fgouget@xxxxxxxxxxxxxxx>
---
server/gstreamer-encoder.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/server/gstreamer-encoder.c b/server/gstreamer-encoder.c
index bf60773..3c1e86e 100644
--- a/server/gstreamer-encoder.c
+++ b/server/gstreamer-encoder.c
@@ -806,6 +806,7 @@ static gboolean configure_pipeline(SpiceGstEncoder *encoder,
#endif
g_object_set(G_OBJECT(encoder->gstenc),
"resize-allowed", TRUE, /* for very low bit rates */
+ "min-quantizer", 10, /* seems virtually lossless */
"target-bitrate", encoder->video_bit_rate,
"end-usage", 1, /* CBR */
"lag-in-frames", 0, /* zero-frame latency */
@@ -818,6 +819,7 @@ static gboolean configure_pipeline(SpiceGstEncoder *encoder,
case SPICE_VIDEO_CODEC_TYPE_H264:
g_object_set(G_OBJECT(encoder->gstenc),
"bitrate", encoder->video_bit_rate / 1024,
+ "qp-min", 15, /* virtually lossless */
"byte-stream", TRUE,
"aud", FALSE,
"tune", 4, /* zero-frame latency */
--
2.6.4
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