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webrtc_sendrecv.py: Add picture-id-mode to rtpvp8pay

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This doesn't just make TWCC stats perform better, it also fixes
stuttery video playback in Chrome.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1864>
This commit is contained in:
Nirbheek Chauhan 2022-03-15 14:00:48 +05:30 committed by GStreamer Marge Bot
parent e0378f9913
commit 3c0d582b7c
2 changed files with 3 additions and 2 deletions
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3
subprojects/gst-examples/webrtc/sendrecv/gst/webrtc-sendrecv.c
View file

@ -438,7 +438,8 @@ start_pipeline (gboolean create_offer)
* fix corrupted video.
*/
"vp8enc deadline=1 keyframe-max-dist=2000 ! "
/* picture-id-mode=15-bit seems to make TWCC stats behave better */
/* picture-id-mode=15-bit seems to make TWCC stats behave better, and
* fixes stuttery video playback in Chrome */
"rtpvp8pay name=videopay picture-id-mode=15-bit ! "
"queue ! " RTP_CAPS_VP8 "96 ! sendrecv. "
"audiotestsrc is-live=true wave=red-noise ! audioconvert ! audioresample ! queue ! opusenc ! rtpopuspay name=audiopay ! "

2
subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
View file

@ -34,7 +34,7 @@ except ImportError:
PIPELINE_DESC = '''
webrtcbin name=sendrecv bundle-policy=max-bundle stun-server=stun://stun.l.google.com:19302
videotestsrc is-live=true pattern=ball ! videoconvert ! queue ! \
vp8enc deadline=1 keyframe-max-dist=2000 ! rtpvp8pay !
vp8enc deadline=1 keyframe-max-dist=2000 ! rtpvp8pay picture-id-mode=15-bit !
queue ! application/x-rtp,media=video,encoding-name=VP8,payload=97 ! sendrecv.
audiotestsrc is-live=true wave=red-noise ! audioconvert ! audioresample ! queue ! opusenc ! rtpopuspay !
queue ! application/x-rtp,media=audio,encoding-name=OPUS,payload=96 ! sendrecv.