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hls muxer: update primary playlist in case SPS/PPS changed

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This commit is contained in:
aler9 2022-04-24 13:01:27 +02:00
parent 3b21da7762
commit 07591c7514
1 changed files with 22 additions and 27 deletions
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49
internal/hls/muxer_primary_playlist.go
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@ -1,7 +1,6 @@
package hls
import (
"bytes"
"encoding/hex"
"io"
"strconv"
@ -13,42 +12,38 @@ import (
type muxerPrimaryPlaylist struct {
videoTrack *gortsplib.TrackH264
audioTrack *gortsplib.TrackAAC
cnt []byte
}
func newMuxerPrimaryPlaylist(
videoTrack *gortsplib.TrackH264,
audioTrack *gortsplib.TrackAAC,
) *muxerPrimaryPlaylist {
p := &muxerPrimaryPlaylist{
return &muxerPrimaryPlaylist{
videoTrack: videoTrack,
audioTrack: audioTrack,
}
var codecs []string
if p.videoTrack != nil {
sps := p.videoTrack.SPS()
if len(sps) >= 4 {
codecs = append(codecs, "avc1."+hex.EncodeToString(sps[1:4]))
}
}
// https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter
if p.audioTrack != nil {
codecs = append(codecs, "mp4a.40."+strconv.FormatInt(int64(p.audioTrack.Type()), 10))
}
p.cnt = []byte("#EXTM3U\n" +
"#EXT-X-VERSION:3\n" +
"\n" +
"#EXT-X-STREAM-INF:BANDWIDTH=200000,CODECS=\"" + strings.Join(codecs, ",") + "\"\n" +
"stream.m3u8\n")
return p
}
func (p *muxerPrimaryPlaylist) reader() io.Reader {
return bytes.NewReader(p.cnt)
return &asyncReader{generator: func() []byte {
var codecs []string
if p.videoTrack != nil {
sps := p.videoTrack.SPS()
if len(sps) >= 4 {
codecs = append(codecs, "avc1."+hex.EncodeToString(sps[1:4]))
}
}
// https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter
if p.audioTrack != nil {
codecs = append(codecs, "mp4a.40."+strconv.FormatInt(int64(p.audioTrack.Type()), 10))
}
return []byte("#EXTM3U\n" +
"#EXT-X-VERSION:3\n" +
"\n" +
"#EXT-X-STREAM-INF:BANDWIDTH=200000,CODECS=\"" + strings.Join(codecs, ",") + "\"\n" +
"stream.m3u8\n")
}}
}