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Code refactoring after #1588

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Alex X
2025-02-17 17:07:36 +03:00
parent c9bdac2e03
commit be2864c34b
1 changed files with 5 additions and 12 deletions
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17
pkg/rtsp/helpers.go
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@@ -77,18 +77,11 @@ func UnmarshalSDP(rawSDP []byte) ([]*core.Media, error) {
}
case core.CodecH265:
if codec.FmtpLine != "" {
// All three parameters are needed for a valid fmtp line. If we're missing one
// then discard the entire line. The bitstream should contain the data in NAL units
//
// Some camera brands (notable Hikvision) don't include the vps property, rendering the entire
// line invalid, because the sps property references the non-existent vps proper. This invalid
// data will cause FFmpeg to crash with a `Could not write header (incorrect codec parameters ?): Invalid data found when processing input`
// error when attempting to repackage the HEVC stream into outgoing RTSP stream. Removing the
// fmtp line forces FFmpeg to rely on the bitstream directly, fixing this issue.
valid := strings.Contains(codec.FmtpLine, "sprop-vps=")
valid = valid && strings.Contains(codec.FmtpLine, "sprop-sps=")
valid = valid && strings.Contains(codec.FmtpLine, "sprop-pps=")
if !valid {
// all three parameters are needed for a valid fmtp line
// https://github.com/AlexxIT/go2rtc/pull/1588
if !strings.Contains(codec.FmtpLine, "sprop-vps=") ||
!strings.Contains(codec.FmtpLine, "sprop-sps=") ||
!strings.Contains(codec.FmtpLine, "sprop-pps=") {
codec.FmtpLine = ""
}
}