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miracle-wfdctl: fine tune codec to compliant with WFD spec + H264

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Derek Dai 2017-03-16 16:31:24 +08:00
parent 1156c08c3f
commit 6d1ee10689
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GPG key ID: E109CC97553EF009
1 changed files with 11 additions and 7 deletions
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18
src/ctl/wfd-out-session.c
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@ -582,15 +582,19 @@ static int wfd_out_session_create_pipeline(struct wfd_session *s)
vsrc_param3,
vsrc_param4,
"!", "video/x-raw,",
"framerate=60/1",
"framerate=30/1",
"!", "vaapipostproc",
"!", "video/x-raw,",
"format=YV12",
"scale-method=2", /* high quality scaling mode */
"format=3", /* yv12" */
"!", "vaapih264enc",
"rate-control=2",
"num-slices=128",
"max-bframes=0",
"init-qp=21",
"rate-control=1",
"num-slices=1", /* in WFD spec, one slice per frame */
"max-bframes=0", /* in H264 CHP, no bframe supporting */
"cabac=true", /* in H264 CHP, CABAC entropy codeing is supported, but need more processing to decode */
"dct8x8=true", /* in H264 CHP, DTC is supported */
"cpb-length=50", /* shortent buffer in order to decrease latency */
"keyframe-period=30",
/* "bitrate=62500", */ /* the max bitrate of H264 level 4.2, crashing my dongle, let codec decide */
"!", "queue",
"max-size-buffers=0",
"max-size-bytes=0",