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ExoPlayer 直播 stream 在 Askey Android 电视盒上冻结，音频继续

[英]ExoPlayer live stream freezes on Askey Android TV box, audio continues

 原文  2019-10-16 09:08:16  2   1    java/ android/ android-videoview/ exoplayer/ exoplayer2.x

问题描述

On play-out of some of our own DASH+widevine protected live streams, the video freezes after just a few seconds on an Askey Android TV box (Android 9) while audio continues.在播放我们自己的一些 DASH+widevine 保护的直播流时，视频在 Askey Android 电视盒 (Android 9) 上几秒钟后冻结，而音频继续。 I also see video chunks still being fetched.我还看到仍在获取视频块。 The same streams play successfully on every other Android device we used so far.到目前为止，相同的流在我们使用的所有其他 Android 设备上都能成功播放。

After trying several ExoPlayer versions (v2.7.3, v2.9.x), I integrated the play-out code in ExoPlayer's demo player on github (v2.10.5).在尝试了几个 ExoPlayer 版本（v2.7.3、v2.9.x）后，我在 github（v2.10.5）上的 ExoPlayer 演示播放器中集成了播放代码。 Here the same problem occurs: video freezes, audio continues.这里发生了同样的问题：视频冻结，音频继续。

As other live streams work without issues on the Askey AndroidTV box, the conclusion is probably that the stream's config somehow triggers this issue.由于其他直播流在 Askey AndroidTV 盒子上没有问题，因此结论可能是流的配置以某种方式触发了这个问题。 But stream config is the same for working/failing streams, and the player logs don't show any clue on why it happens.但是 stream 配置对于工作/失败的流是相同的，并且播放器日志没有显示任何关于它发生原因的线索。 Except maybe for this error that appears constantly, also when the player is not active:除了可能经常出现的这个错误之外，当玩家不活跃时：

E libc    : Access denied finding property "persist.vaudio.debug.search"
W HwBinder:3034_1: type=1400 audit(0.0:285045): avc: denied { read } for name="u:object_r:default_prop:s0" dev="tmpfs" ino=13267 scontext=u:r:hal_audio_default:s0 tcontext=u:object_r:default_prop:s0 tclass=file permissive=0

Below is the log of a play-out with video freeze.以下是视频冻结播放的日志。 The freeze happens just after timelineChanged's timestamp 4.34.冻结发生在timelineChanged 的时间戳4.34 之后。

W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@87575b6
I/ExoPlayerImpl: Init d420716 [ExoPlayerLib/2.10.5] [Android TV Box, askey, 28]
D/EventLogger: state [0.01, 0.00, window=0, true, BUFFERING]
D/mali_winsys: EGLint new_window_surface(egl_winsys_display *, void *, EGLSurface, EGLConfig, egl_winsys_surface **, EGLBoolean) returns 0x3000
D/EventLogger: surfaceSizeChanged [0.09, 0.00, window=0, 1920, 1080]
D/EventLogger: timelineChanged [0.15, 3.99, window=0, periodCount=1, windowCount=1, reason=PREPARED
      period [?]
      window [29.99, true, true]
    ]
D/EventLogger: mediaPeriodCreated [0.15, 3.99, window=0, period=0]
    loading [0.15, 3.99, window=0, period=0, true]
    decoderEnabled [0.15, 3.99, window=0, period=0, video]
D/EventLogger: decoderEnabled [0.16, 3.99, window=0, period=0, audio]
D/EventLogger: tracksChanged [0.16, 3.99, window=0, period=0, 
D/EventLogger:   Renderer:0 [
        Group:0, adaptive_supported=YES [
D/EventLogger:       [X] Track:0, id=dzGAGgaf, mimeType=video/avc, bitrate=400000, codecs=avc1.42e00d, res=400x224, fps=25.0, supported=YES
          [X] Track:1, id=dzEANQyf, mimeType=video/avc, bitrate=800000, codecs=avc1.4d401e, res=640x360, fps=25.0, supported=YES
D/EventLogger:       [X] Track:2, id=dzHgyBCf, mimeType=video/avc, bitrate=1100000, codecs=avc1.4d401e, res=704x396, fps=25.0, supported=YES
          [X] Track:3, id=dzEAahif, mimeType=video/avc, bitrate=1600000, codecs=avc1.4d401f, res=1024x576, fps=25.0, supported=YES
        ]
      ]
      Renderer:1 [
        Group:0, adaptive_supported=N/A [
          [X] Track:0, id=dyHiAZ8., mimeType=audio/mp4a-latm, bitrate=128000, codecs=mp4a.40.2, channels=2, sample_rate=48000, language=nl, supported=YES
        ]
      ]
    ]
D/EventLogger: mediaPeriodReadingStarted [0.18, 3.99, window=0, period=0]
D/EventLogger: downstreamFormatChanged [0.26, 3.99, window=0, period=0, id=dzEAahif, mimeType=video/avc, bitrate=1600000, codecs=avc1.4d401f, res=1024x576, fps=25.0]
D/EventLogger: downstreamFormatChanged [0.27, 3.99, window=0, period=0, id=dyHiAZ8., mimeType=audio/mp4a-latm, bitrate=128000, codecs=mp4a.40.2, channels=2, sample_rate=48000, language=nl]
D/EventLogger: drmSessionAcquired [0.39, 3.99, window=0, period=0]
I/OMXClient: IOmx service obtained
W/libEGL: EGLNativeWindowType 0xd4205808 disconnect failed
D/SurfaceUtils: connecting to surface 0xd1c85008, reason connectToSurface
I/MediaCodec: [OMX.amlogic.avc.decoder.awesome.secure] setting surface generation to 6428686
D/SurfaceUtils: disconnecting from surface 0xd1c85008, reason connectToSurface(reconnect)
    connecting to surface 0xd1c85008, reason connectToSurface(reconnect)
I/AmAVUtils: AmAVUtils::getComponentRole isEncoder :0 mime:video/avc 
V/AVUtils: AVUtils::getComponentRole
E/ACodec: [OMX.amlogic.avc.decoder.awesome.secure] setPortMode on output to DynamicANWBuffer failed w/ err -2147483648
I/AmAVUtils: AmAVUtils::isAudioExtendFormat input = video/avc
I/ACodec: codec does not support config priority (err -1010)
D/SurfaceUtils: disconnecting from surface 0xd1c85008, reason setNativeWindowSizeFormatAndUsage
    connecting to surface 0xd1c85008, reason setNativeWindowSizeFormatAndUsage
D/SurfaceUtils: set up nativeWindow 0xd1c85008 for 1024x576, color 0x11, rotation 0, usage 0x406933
D/EventLogger: decoderInitialized [0.65, 3.99, window=0, period=0, video, OMX.amlogic.avc.decoder.awesome.secure]
D/EventLogger: decoderInputFormatChanged [0.65, 3.99, window=0, period=0, video, id=dzEAahif, mimeType=video/avc, bitrate=1600000, codecs=avc1.4d401f, res=1024x576, fps=25.0]
I/OMXClient: IOmx service obtained
I/AmAVUtils: AmAVUtils::getComponentRole isEncoder :0 mime:audio/mp4a-latm 
V/AVUtils: AVUtils::getComponentRole
I/AmAVUtils: AmAVUtils::isAudioExtendFormat input = audio/mp4a-latm
I/ACodec: codec does not support config priority (err -2147483648)
I/ACodec: codec does not support config operating rate (err -2147483648)
D/EventLogger: decoderInitialized [0.89, 3.99, window=0, period=0, audio, OMX.google.aac.decoder]
D/EventLogger: decoderInputFormatChanged [0.89, 3.99, window=0, period=0, audio, id=dyHiAZ8., mimeType=audio/mp4a-latm, bitrate=128000, codecs=mp4a.40.2, channels=2, sample_rate=48000, language=nl]
D/EventLogger: drmKeysLoaded [3.40, 3.99, window=0, period=0]
D/EventLogger: videoSizeChanged [3.50, 3.99, window=0, period=0, 1024, 576]
D/EventLogger: renderedFirstFrame [3.52, 3.99, window=0, period=0, Surface(name=null)/@0xcb34ae4]
D/EventLogger: audioSessionId [3.53, 3.99, window=0, period=0, 465]
D/EventLogger: state [3.55, 3.99, window=0, period=0, true, READY]
D/AudioTrack: correcting timestamp time for pause, currentTimeNanos: 2143457176437 < limitNs: 2143461518478 < mStartNs: 2143503518478
D/AudioTrack: correcting timestamp time for pause, currentTimeNanos: 2143457176437 < limitNs: 2143461518478 < mStartNs: 2143503518478
D/AudioTrack: correcting timestamp time for pause, currentTimeNanos: 2143457176437 < limitNs: 2143461518478 < mStartNs: 2143503518478
D/EventLogger: timelineChanged [3.63, 0.00, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
    ]
D/EventLogger: timelineChanged [4.34, 0.66, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
    ]
D/EventLogger: timelineChanged [6.76, 1.08, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
    ]
D/EventLogger: timelineChanged [8.44, 0.77, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.99, true, true]
D/EventLogger: ]
D/EventLogger: timelineChanged [10.51, 0.83, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
D/EventLogger:   window [29.99, true, true]
    ]
D/EventLogger: timelineChanged [12.15, 0.47, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
D/EventLogger: ]
D/EventLogger: timelineChanged [14.19, 0.50, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
    ]
D/EventLogger: timelineChanged [16.14, 0.46, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
D/EventLogger:   window [29.99, true, true]
    ]
D/EventLogger: timelineChanged [18.17, 0.49, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.99, true, true]
    ]
D/EventLogger: timelineChanged [20.14, 0.45, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.98, true, true]
    ]

The stream has 4 video tracks: stream 有 4 个视频轨道：

  • 400x224, 0.40 Mbps 400x224, 0.40 Mbps
  • 600x360, 0.80 Mbps 600x360, 0.80 Mbps
  • 704x396, 1.10 Mbps 704x396, 1.10 Mbps
  • 1024x576, 1.60 Mbps 1024x576, 1.60 Mbps

The freeze issue occurs on all tracks, except for the 0.40Mpbs.除 0.40Mpbs 外，所有轨道上都会出现冻结问题。 Here the video continues, but very choppy.视频在这里继续，但非常不稳定。 In this case logs show frames being dropped:在这种情况下，日志显示被丢弃的帧：

D/EventLogger: state [773.80, -4.02, window=0, period=0, true, READY]
D/EventLogger: timelineChanged [775.48, -4.45, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
D/EventLogger:   window [29.99, true, true]
    ]
D/EventLogger: droppedFrames [776.74, -3.19, window=0, period=0, 50]
D/EventLogger: timelineChanged [777.49, -4.45, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
      window [29.99, true, true]
    ]
D/EventLogger: timelineChanged [779.49, -4.46, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
      period [?]
D/EventLogger:   window [29.98, true, true]
    ]
D/EventLogger: droppedFrames [779.90, -4.03, window=0, period=0, 50]
D/EventLogger: timelineChanged [781.48, -4.47, window=0, period=0, periodCount=1, windowCount=1, reason=DYNAMIC
D/EventLogger:   period [?]
      window [29.98, true, true]
    ]

Finally, here is a manifest of the freezing stream:最后，这里是冻结 stream 的清单：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!--Created with VSPP Streamer version 5.2.4.2 build 95193 context 3374162112732519956-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cenc="urn:mpeg:cenc:2013" xmlns:mspr="urn:microsoft:playready" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="dynamic" availabilityStartTime="1970-01-01T00:00:00Z" publishTime="2019-10-16T09:04:33Z" timeShiftBufferDepth="PT30S" minimumUpdatePeriod="PT2S" minBufferTime="PT12S">
    <Period id="1" start="PT0S">
        <AdaptationSet id="1" group="1" bitstreamSwitching="true" segmentAlignment="true" contentType="video" mimeType="video/mp4" maxWidth="1024" maxHeight="576" par="16:9" maxFrameRate="25" startWithSAP="1">
            <ContentProtection schemeIdUri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95" value="MSPR 2.0">
                <mspr:pro>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</mspr:pro>
                <cenc:pssh>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</cenc:pssh>
            </ContentProtection>
            <ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed">
                <cenc:pssh>AAAAY3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEMIARIQ6cpo1Zp7Saap6x+EIaxU4hoLcGFjZXRlbGVuZXQiIGU5Y2E2OGQ1OWE3YjQ5YTZhOWViMWY4NDIxYWM1NGUy</cenc:pssh>
            </ContentProtection>
            <ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc"/>
            <SegmentTemplate timescale="10000000" media="S!d2ELREFTSF9IRDEwODASAlT-....ARYEnw__/QualityLevels($Bandwidth$)/Fragments(video=$Time$)" initialization="S!d2ELREFTSF9IRDEwODASAlT-....ARYEnw__/QualityLevels($Bandwidth$)/Fragments(video=Init)">
                <SegmentTimeline>
                    <S t="15712166312942690" d="20000000" r="14"/>
                </SegmentTimeline>
            </SegmentTemplate>
            <Representation id="dzGAGgaf" bandwidth="400000" codecs="avc1.42e00d" width="400" height="224" frameRate="25" sar="1:1"/>
            <Representation id="dzEANQyf" bandwidth="800000" codecs="avc1.4d401e" width="640" height="360" frameRate="25" sar="1:1"/>
            <Representation id="dzHgyBCf" bandwidth="1100000" codecs="avc1.4d401e" width="704" height="396" frameRate="25" sar="1:1"/>
            <Representation id="dzEAahif" bandwidth="1600000" codecs="avc1.4d401f" width="1024" height="576" frameRate="25" sar="1:1"/>
        </AdaptationSet>
        <AdaptationSet id="2" group="2" bitstreamSwitching="true" segmentAlignment="true" contentType="audio" mimeType="audio/mp4" lang="dut">
            <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
            <ContentProtection schemeIdUri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95" value="MSPR 2.0">
                <mspr:pro>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</mspr:pro>
                <cenc:pssh>AAADsHBzc2gAAAAAmgTweZhAQoarkuZb4IhflQAAA5CQAwAAAQABAIYDPABXAFIATQBIAEUAQQBEAEUAUgAgAHgAbQBsAG4AcwA9ACIAaAB0AHQAcAA6AC8ALwBzAGMAaABlAG0AYQBzAC4AbQBpAGMAcgBvAHMAbwBmAHQALgBjAG8AbQAvAEQAUgBNAC8AMgAwADAANwAvADAAMwAvAFAAbABhAHkAUgBlAGEAZAB5AEgAZQBhAGQAZQByACIAIAB2AGUAcgBzAGkAbwBuAD0AIgA0AC4AMAAuADAALgAwACIAPgA8AEQAQQBUAEEAPgA8AFAAUgBPAFQARQBDAFQASQBOAEYATwA+ADwASwBFAFkATABFAE4APgAxADYAPAAvAEsARQBZAEwARQBOAD4APABBAEwARwBJAEQAPgBBAEUAUwBDAFQAUgA8AC8AQQBMAEcASQBEAD4APAAvAFAAUgBPAFQARQBDAFQASQBOAEYATwA+ADwATABBAF8AVQBSAEwAPgBoAHQAdABwADoALwAvAGwAcAByAGQAcgBtAC4AeQBlAGwAbwAuAGYAdQB0AC4AdABlAGwAZQBuAGUAdAAtAG8AcABzAC4AYgBlAC8AcAByAGwAYwAvAHIAaQBnAGgAdABzAG0AYQBuAGEAZwBlAHIALgBhAHMAbQB4ADwALwBMAEEAXwBVAFIATAA+ADwATABVAEkAXwBVAFIATAA+AGgAdAB0AHAAOgAvAC8AbABwAHIAZAByAG0ALgB5AGUAbABvAC4AZgB1AHQALgB0AGUAbABlAG4AZQB0AC0AbwBwAHMALgBiAGUALwBwAHIAbABjAC8AcgBpAGcAaAB0AHMAbQBhAG4AYQBnAGUAcgAuAGEAcwBtAHgAPAAvAEwAVQBJAF8AVQBSAEwAPgA8AEQAUwBfAEkARAA+AEkAQwBEAHMASQBlAG8ANgBhAFIAQwBpADMAUQBnAEEASwB6AEEAdwBuAFEAPQA9ADwALwBEAFMAXwBJAEQAPgA8AEsASQBEAD4AMQBXAGoASwA2AFgAdQBhAHAAawBtAHAANgB4ACsARQBJAGEAeABVADQAZwA9AD0APAAvAEsASQBEAD4APABDAEgARQBDAEsAUwBVAE0APgBmAHgAagBwAEMAUwBrADcAMwBZADQAPQA8AC8AQwBIAEUAQwBLAFMAVQBNAD4APAAvAEQAQQBUAEEAPgA8AC8AVwBSAE0ASABFAEEARABFAFIAPgA=</cenc:pssh>
            </ContentProtection>
            <ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed">
                <cenc:pssh>AAAAY3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEMIARIQ6cpo1Zp7Saap6x+EIaxU4hoLcGFjZXRlbGVuZXQiIGU5Y2E2OGQ1OWE3YjQ5YTZhOWViMWY4NDIxYWM1NGUy</cenc:pssh>
            </ContentProtection>
            <ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc"/>
            <SegmentTemplate timescale="48000" media="S!d2ELREFTSF9IRDEwODASAlT-....ARYEnw__/QualityLevels($Bandwidth$)/Fragments(audio_482_dut=$Time$)" initialization="S!d2ELREFTSF9IRDEwODASAlT-....ARYEnw__/QualityLevels($Bandwidth$)/Fragments(audio_482_dut=Init)">
                <SegmentTimeline>
                    <S t="75418398302636" d="96256" r="1"/>
                    <S d="95232"/>
                    <S d="96256" r="2"/>
                    <S d="95232"/>
                    <S d="96256" r="2"/>
                    <S d="95232"/>
                    <S d="96256" r="2"/>
                    <S d="95232"/>
                </SegmentTimeline>
            </SegmentTemplate>
            <Representation id="dyHiAZ8." bandwidth="128000" codecs="mp4a.40.2" audioSamplingRate="48000"/>
        </AdaptationSet>
    </Period>
</MPD>

So how should I proceed with investigating this issue?那么我应该如何着手调查这个问题呢？

1 个解决方案

解决方案1
 1  2019-10-16 22:07:37

It turns out the video codec "OMX.amlogic.avc.decoder.awesome.secure" is the cause.事实证明，视频编解码器“OMX.amlogic.avc.decoder.awesome.secure”是原因。 Disabling it in ExoPlayer solves the issue.在 ExoPlayer 中禁用它可以解决这个问题。

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