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Force an i-frame every second for consistent segment lenghts with

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minimum latency.
This commit is contained in:
Gabe Kangas 2021-04-29 14:26:25 -07:00
parent 4f73da30a8
commit 5324d235bf
1 changed files with 1 additions and 8 deletions
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9
core/transcoder/transcoder.go
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@ -327,14 +327,7 @@ func (v *HLSVariant) getVideoQualityString(t *Transcoder) string {
return fmt.Sprintf("-map v:0 -c:v:%d copy", v.index) return fmt.Sprintf("-map v:0 -c:v:%d copy", v.index)
} }
// Determine if we should force key frames every 1, 2 or 3 frames. gop := v.framerate // force an i-frame every second
isEven := t.currentLatencyLevel.SecondsPerSegment%2 == 0
gop := v.framerate * 2
if t.currentLatencyLevel.SecondsPerSegment == 1 {
gop = v.framerate
} else if !isEven {
gop = v.framerate * 3
}
// For limiting the output bitrate // For limiting the output bitrate
// https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate // https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate