I've noticed playback sometimes pause between songs. The UI doesn't have a spinner and just shows a play button, as if I'd manually paused. Pressing the play button resumes playback. It happens rarely -- I think I've only seen it three times across many hours of playback.
Here's all I see in the logs:
...
play-view.ts:1052 Preloading 5194444666044416 (https://...)
play-view.ts:970 Starting 5194444666044416 (https://...)
play-view.ts:1143 Scaling amplitude by 0.367 for track
play-view.ts:979 Playing
play-view.ts:320 Playback waiting
Looking at the audio element, paused is true and readyState is 4, i.e. HAVE_ENOUGH_DATA. played is empty and error is null. networkState is 1, i.e. NETWORK_IDLE.
Here's what chrome://media-internals/ says about it:
{
"properties": {
"render_id": 2571,
"player_id": 36,
"created": "2025年03月15日 12:53:55.792000 UTC",
"origin_url": "...",
"kFrameUrl": "...",
"kFrameTitle": "TOBACCO - Sassy Ministries",
"url": "https://...",
"kTotalBytes": "0x86fde3",
"kIsStreaming": false,
"kIsSingleOrigin": true,
"kIsRangeHeaderSupported": true,
"kRendererName": "RendererImpl",
"pipeline_state": "kSuspended",
"info": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false",
"kAudioTracks": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "mp3",
"codec delay": 0,
"discard decoder delay": true,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit planar",
"samples per second": 44100,
"seek preroll": "0us"
}
],
"kVideoTracks": [],
"kMaxDuration": 262.870204,
"kStartTime": 0,
"kBitrate": 269237,
"kIsAudioDecryptingDemuxerStream": false,
"kAudioDecoderName": "FFmpegAudioDecoder",
"kIsPlatformAudioDecoder": false,
"duration": 262.870204,
"pipeline_buffering_state": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
},
"event": "kSuspended",
"seek_target": 0
},
"events": [
{
"time": 0,
"key": "created",
"value": "2025年03月15日 12:53:55.792000 UTC"
},
{
"time": 0.29999999701976776,
"key": "origin_url",
"value": "..."
},
{
"time": 0.31599999964237213,
"key": "kFrameUrl",
"value": "..."
},
{
"time": 0.32499999552965164,
"key": "kFrameTitle",
"value": "TOBACCO - Sassy Ministries"
},
{
"time": 0.4909999966621399,
"key": "url",
"value": "..."
},
{
"time": 1745.0439999997616,
"key": "kTotalBytes",
"value": "0x86fde3"
},
{
"time": 1745.070999994874,
"key": "kIsStreaming",
"value": false
},
{
"time": 1745.0729999989271,
"key": "kIsSingleOrigin",
"value": true
},
{
"time": 1745.0749999955297,
"key": "kIsRangeHeaderSupported",
"value": true
},
{
"time": 1745.2309999987483,
"key": "kRendererName",
"value": "RendererImpl"
},
{
"time": 1745.2739999964833,
"key": "pipeline_state",
"value": "kStarting"
},
{
"time": 1837.4789999946952,
"key": "info",
"value": "FFmpegDemuxer: created audio stream, config codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: NONE, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 1837.5019999966025,
"key": "kAudioTracks",
"value": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "mp3",
"codec delay": 0,
"discard decoder delay": true,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit planar",
"samples per second": 44100,
"seek preroll": "0us"
}
]
},
{
"time": 1837.5139999985695,
"key": "kVideoTracks",
"value": []
},
{
"time": 1837.5239999964833,
"key": "kMaxDuration",
"value": 262.870204
},
{
"time": 1837.5239999964833,
"key": "kStartTime",
"value": 0
},
{
"time": 1837.5249999985099,
"key": "kBitrate",
"value": 269237
},
{
"time": 1837.6079999953508,
"key": "kIsAudioDecryptingDemuxerStream",
"value": false
},
{
"time": 1837.609999999404,
"key": "kAudioDecoderName",
"value": "FFmpegAudioDecoder"
},
{
"time": 1837.6119999960065,
"key": "kIsPlatformAudioDecoder",
"value": false
},
{
"time": 1837.625999994576,
"key": "info",
"value": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 1837.6699999943376,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 1837.4930000007153,
"key": "duration",
"value": 262.870204
},
{
"time": 1838.5590000003576,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 16839.33900000155,
"key": "pipeline_state",
"value": "kSuspending"
},
{
"time": 16839.473999999464,
"key": "pipeline_state",
"value": "kSuspended"
},
{
"time": 16839.586999997497,
"key": "event",
"value": "kSuspended"
},
{
"time": 19932.27499999851,
"key": "seek_target",
"value": 0
},
{
"time": 19932.35599999875,
"key": "kRendererName",
"value": "RendererImpl"
},
{
"time": 19932.401000000536,
"key": "seek_target",
"value": 0
},
{
"time": 19932.44999999553,
"key": "pipeline_state",
"value": "kResuming"
},
{
"time": 19932.619999997318,
"key": "info",
"value": "Effective playback rate changed from 0 to 1"
},
{
"time": 19940.26399999857,
"key": "kIsAudioDecryptingDemuxerStream",
"value": false
},
{
"time": 19940.35000000149,
"key": "kAudioDecoderName",
"value": "FFmpegAudioDecoder"
},
{
"time": 19940.353999994695,
"key": "kIsPlatformAudioDecoder",
"value": false
},
{
"time": 19940.387999996543,
"key": "info",
"value": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 19940.601999998093,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 19945.695999994874,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 19932.70300000161,
"key": "event",
"value": "kPlay"
},
{
"time": 19949.803999997675,
"key": "event",
"value": "kPause"
},
{
"time": 34951.24399999529,
"key": "pipeline_state",
"value": "kSuspending"
},
{
"time": 34951.504000000656,
"key": "pipeline_state",
"value": "kSuspended"
},
{
"time": 34951.63799999654,
"key": "event",
"value": "kSuspended"
}
]
}
Comparing against the logs for the previous song, the kPause immediately after playing is where things go off the rails. Normally, there are no more events until FFmpegDemuxer: av_read_frame(): End of file and kEnded at the end of the file.
(Just to mention it, kFrameTitle weirdly always seems to refer to the previous song.)
I don't think I'd seen this prior to a week or two ago. I thought it was due to a flaky network connection then, but I saw it again just now without noticing any network issues, so now I think it might be a regression in Chrome. I was using a Bluetooth connection both times, but the timing between songs makes me think that it's not related to bogus media events. I'm currently on 133.0.6943.184.
I've noticed playback sometimes pause between songs. The UI doesn't have a spinner and just shows a play button, as if I'd manually paused. Pressing the play button resumes playback. It happens rarely -- I think I've only seen it three times across many hours of playback.
Here's all I see in the logs:
```
...
play-view.ts:1052 Preloading 5194444666044416 (https://...)
play-view.ts:970 Starting 5194444666044416 (https://...)
play-view.ts:1143 Scaling amplitude by 0.367 for track
play-view.ts:979 Playing
play-view.ts:320 Playback waiting
```
Looking at the audio element, [paused](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/paused) is true and [readyState](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/readyState) is 4, i.e. `HAVE_ENOUGH_DATA`. [played](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/played) is empty and [error](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/error) is null. [networkState](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/networkState) is 1, i.e. `NETWORK_IDLE`.
Here's what chrome://media-internals/ says about it:
```json
{
"properties": {
"render_id": 2571,
"player_id": 36,
"created": "2025年03月15日 12:53:55.792000 UTC",
"origin_url": "...",
"kFrameUrl": "...",
"kFrameTitle": "TOBACCO - Sassy Ministries",
"url": "https://...",
"kTotalBytes": "0x86fde3",
"kIsStreaming": false,
"kIsSingleOrigin": true,
"kIsRangeHeaderSupported": true,
"kRendererName": "RendererImpl",
"pipeline_state": "kSuspended",
"info": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false",
"kAudioTracks": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "mp3",
"codec delay": 0,
"discard decoder delay": true,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit planar",
"samples per second": 44100,
"seek preroll": "0us"
}
],
"kVideoTracks": [],
"kMaxDuration": 262.870204,
"kStartTime": 0,
"kBitrate": 269237,
"kIsAudioDecryptingDemuxerStream": false,
"kAudioDecoderName": "FFmpegAudioDecoder",
"kIsPlatformAudioDecoder": false,
"duration": 262.870204,
"pipeline_buffering_state": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
},
"event": "kSuspended",
"seek_target": 0
},
"events": [
{
"time": 0,
"key": "created",
"value": "2025年03月15日 12:53:55.792000 UTC"
},
{
"time": 0.29999999701976776,
"key": "origin_url",
"value": "..."
},
{
"time": 0.31599999964237213,
"key": "kFrameUrl",
"value": "..."
},
{
"time": 0.32499999552965164,
"key": "kFrameTitle",
"value": "TOBACCO - Sassy Ministries"
},
{
"time": 0.4909999966621399,
"key": "url",
"value": "..."
},
{
"time": 1745.0439999997616,
"key": "kTotalBytes",
"value": "0x86fde3"
},
{
"time": 1745.070999994874,
"key": "kIsStreaming",
"value": false
},
{
"time": 1745.0729999989271,
"key": "kIsSingleOrigin",
"value": true
},
{
"time": 1745.0749999955297,
"key": "kIsRangeHeaderSupported",
"value": true
},
{
"time": 1745.2309999987483,
"key": "kRendererName",
"value": "RendererImpl"
},
{
"time": 1745.2739999964833,
"key": "pipeline_state",
"value": "kStarting"
},
{
"time": 1837.4789999946952,
"key": "info",
"value": "FFmpegDemuxer: created audio stream, config codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: NONE, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 1837.5019999966025,
"key": "kAudioTracks",
"value": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "mp3",
"codec delay": 0,
"discard decoder delay": true,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit planar",
"samples per second": 44100,
"seek preroll": "0us"
}
]
},
{
"time": 1837.5139999985695,
"key": "kVideoTracks",
"value": []
},
{
"time": 1837.5239999964833,
"key": "kMaxDuration",
"value": 262.870204
},
{
"time": 1837.5239999964833,
"key": "kStartTime",
"value": 0
},
{
"time": 1837.5249999985099,
"key": "kBitrate",
"value": 269237
},
{
"time": 1837.6079999953508,
"key": "kIsAudioDecryptingDemuxerStream",
"value": false
},
{
"time": 1837.609999999404,
"key": "kAudioDecoderName",
"value": "FFmpegAudioDecoder"
},
{
"time": 1837.6119999960065,
"key": "kIsPlatformAudioDecoder",
"value": false
},
{
"time": 1837.625999994576,
"key": "info",
"value": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 1837.6699999943376,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 1837.4930000007153,
"key": "duration",
"value": 262.870204
},
{
"time": 1838.5590000003576,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 16839.33900000155,
"key": "pipeline_state",
"value": "kSuspending"
},
{
"time": 16839.473999999464,
"key": "pipeline_state",
"value": "kSuspended"
},
{
"time": 16839.586999997497,
"key": "event",
"value": "kSuspended"
},
{
"time": 19932.27499999851,
"key": "seek_target",
"value": 0
},
{
"time": 19932.35599999875,
"key": "kRendererName",
"value": "RendererImpl"
},
{
"time": 19932.401000000536,
"key": "seek_target",
"value": 0
},
{
"time": 19932.44999999553,
"key": "pipeline_state",
"value": "kResuming"
},
{
"time": 19932.619999997318,
"key": "info",
"value": "Effective playback rate changed from 0 to 1"
},
{
"time": 19940.26399999857,
"key": "kIsAudioDecryptingDemuxerStream",
"value": false
},
{
"time": 19940.35000000149,
"key": "kAudioDecoderName",
"value": "FFmpegAudioDecoder"
},
{
"time": 19940.353999994695,
"key": "kIsPlatformAudioDecoder",
"value": false
},
{
"time": 19940.387999996543,
"key": "info",
"value": "Selected FFmpegAudioDecoder for audio decoding, config: codec: mp3, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit planar, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: true, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: false"
},
{
"time": 19940.601999998093,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 19945.695999994874,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 19932.70300000161,
"key": "event",
"value": "kPlay"
},
{
"time": 19949.803999997675,
"key": "event",
"value": "kPause"
},
{
"time": 34951.24399999529,
"key": "pipeline_state",
"value": "kSuspending"
},
{
"time": 34951.504000000656,
"key": "pipeline_state",
"value": "kSuspended"
},
{
"time": 34951.63799999654,
"key": "event",
"value": "kSuspended"
}
]
}
```
Comparing against the logs for the previous song, the `kPause` immediately after playing is where things go off the rails. Normally, there are no more events until `FFmpegDemuxer: av_read_frame(): End of file` and `kEnded` at the end of the file.
(Just to mention it, `kFrameTitle` weirdly always seems to refer to the previous song.)
I don't think I'd seen this prior to a week or two ago. I thought it was due to a flaky network connection then, but I saw it again just now without noticing any network issues, so now I think it might be a regression in Chrome. I was using a Bluetooth connection both times, but the timing between songs makes me think that it's not related to bogus media events. I'm currently on 133.0.6943.184.