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make sure that GStreamer pipelines in README use yuv420 (#2211)

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Alessandro Ros 2023-08-16 17:57:21 +02:00 • committed by GitHub
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README.md
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@ -356,9 +356,11 @@ Check that the output contains `GStreamer: YES`.
Videos can be published with `VideoWriter`:
```python
from datetime import datetime
from time import sleep, time
import cv2
import numpy as np
from time import sleep, time
fps = 15
width = 800
@ -370,6 +372,7 @@ colors = [
]
out = cv2.VideoWriter('appsrc ! videoconvert' + \
' ! video/x-raw,format=I420' + \
' ! x264enc speed-preset=ultrafast bitrate=600 key-int-max=' + str(fps * 2) + \
' ! video/x-h264,profile=baseline' + \
' ! rtspclientsink location=rtsp://localhost:8554/mystream',
@ -392,7 +395,7 @@ while True:
frame[y][x] = color
out.write(frame)
print("frame written to the server")
print("%s frame written to the server" % datetime.now())
now = time()
diff = (1 / fps) - now - start
@ -692,7 +695,7 @@ The server supports ingesting UDP/MPEG-TS packets (i.e. MPEG-TS packets sent wit
```
gst-launch-1.0 -v mpegtsmux name=mux alignment=1 ! udpsink host=238.0.0.1 port=1234 \
videotestsrc ! video/x-raw,width=1280,height=720 ! x264enc speed-preset=ultrafast bitrate=3000 key-int-max=60 ! video/x-h264,profile=high ! mux. \
videotestsrc ! video/x-raw,width=1280,height=720,format=I420 ! x264enc speed-preset=ultrafast bitrate=3000 key-int-max=60 ! video/x-h264,profile=high ! mux. \
audiotestsrc ! audioconvert ! avenc_aac ! mux.
```