GstCameraPlugin: sim-friendly H.264 streaming defaults for better FPS - #173
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GstCameraPlugin: sim-friendly H.264 streaming defaults for better FPS#173vdoom wants to merge 1 commit into
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vdoom
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Jul 20, 2026
vdoom
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- rtph264pay config-interval=1: repeat SPS/PPS every second so receivers can join mid-stream (previously a decoder attaching after stream start never got the headers and could not decode).
- x264enc speed-preset ultrafast (was medium) with bitrate 2500 kbps: medium ate most of a CPU core at 720p on embedded boards, dragging the lockstep sim real-time factor (and thus the effective camera FPS) down.
- appsrc caps framerate 5 -> 30: downstream elements pace/buffer by the declared rate, so it must not be below the camera sensor update rate.
- rtph264pay config-interval=1: repeat SPS/PPS every second so receivers can join mid-stream (previously a decoder attaching after stream start never got the headers and could not decode). - x264enc speed-preset ultrafast (was medium) with bitrate 2500 kbps: medium ate most of a CPU core at 720p on embedded boards, dragging the lockstep sim real-time factor (and thus the effective camera FPS) down. - appsrc caps framerate 5 -> 30: downstream elements pace/buffer by the declared rate, so it must not be below the camera sensor update rate. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JPFsqm5WXmeC8ruMZauQL7
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