stream.place
Live video on the AT Protocol
app: opusparse on ingest, seems to fix a/v duration mismatch (#286)
* app: opusparse on ingest, seems to fix a/v duration mismatch
* hack: add segment-durations.sh
authored by
Eli Mallon
and committed by
GitHub
55baf868
bb750b93
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hack/segment-durations.sh
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hack/segment-durations.sh
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#!/bin/bash
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# Splits a video stream apart into video and audio files and checks the discrepancy between them
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set -euo pipefail
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dir="$(mktemp -d)"
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ffmpeg -i "$1" -vn -c:a copy "$dir/audio.mkv" 2>/dev/null >/dev/null
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ffmpeg -i "$1" -an -c:v copy "$dir/video.mkv" 2>/dev/null >/dev/null
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videoDuration=$(gst-discoverer-1.0 "$dir/video.mkv" | grep "Duration" | sed 's/ Duration: 0:00:0//')
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audioDuration=$(gst-discoverer-1.0 "$dir/audio.mkv" | grep "Duration" | sed 's/ Duration: 0:00:0//')
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echo "Video duration: $videoDuration"
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echo "Audio duration: $audioDuration"
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echo "Difference (negative means audio is longer): $(node -p "$videoDuration - $audioDuration")"
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rm -rf "$dir"
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pkg/media/webrtc_ingest.go
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pkg/media/webrtc_ingest.go
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pipelineSlice := []string{
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"multiqueue name=queue",
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"appsrc format=time is-live=true do-timestamp=true name=videosrc ! capsfilter caps=application/x-rtp ! rtph264depay ! capsfilter caps=video/x-h264,stream-format=byte-stream,alignment=nal ! h264parse disable-passthrough=true config-interval=-1 ! h264timestamper ! identity ! queue.sink_0",
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"appsrc format=time do-timestamp=true name=audiosrc ! capsfilter caps=application/x-rtp,media=audio,encoding-name=OPUS,payload=111 ! rtpopusdepay ! queue.sink_1",
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"appsrc format=time do-timestamp=true name=audiosrc ! capsfilter caps=application/x-rtp,media=audio,encoding-name=OPUS,payload=111 ! rtpopusdepay ! opusparse ! queue.sink_1",
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}
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pipeline, err := gst.NewPipelineFromString(strings.Join(pipelineSlice, "\n"))