fix: mp3音频没声音

bytedance · Sep 5, 2024 · b42cf01 · b42cf01
1 parent f487498
commit b42cf01
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Showing 2 changed files with 11 additions and 3 deletions.
diff --git a/packages/xgplayer-transmuxer/src/codec/mpeg.js b/packages/xgplayer-transmuxer/src/codec/mpeg.js
@@ -1,3 +1,5 @@
+import { isFirefox } from '../utils'
+
 const BitratesMap = [
   32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 32, 48, 56,
   64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 32, 40, 48, 56, 64, 80,
@@ -83,7 +85,11 @@ export class MPEG {
       track.config = []
       track.channelCount = header.channelCount
       track.sampleRate = header.sampleRate
-      track.container = 'audio/mpeg'
+      if (isFirefox) {
+        track.codec = 'mp3'
+      } else {
+        track.container = 'audio/mpeg'
+      }
       track.samples.push(sample)
 
       return { length: header.frameLength }

diff --git a/packages/xgplayer-transmuxer/src/mpeg-ts/index.js b/packages/xgplayer-transmuxer/src/mpeg-ts/index.js
@@ -101,8 +101,10 @@ export class TsDemuxer {
                 break
               case 0x03:
               case 0x04:
-                audioTrack.pid = audioPid = esPid
-                audioTrack.codecType = AudioCodecType.MP3
+                if (audioTrack.pid === -1) {
+                  audioTrack.pid = audioPid = esPid
+                  audioTrack.codecType = AudioCodecType.MP3
+                }
                 break
               case 0x1b: // AVC
                 if (videoPid !== -1) break