Bug 1928120 Comment 1 Edit History

Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.

Original comment by

C.M.Chang[:chunmin]

on 2024-12-11 17:14:55 PST

```
...
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
...
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
...
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
...
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
...
```
From the log capturing when running the example code, the configuration fails because the size (width and height) is not set in advance.  The [size check](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavutil/imgutils.c#302) fails in [`avcodec_open2`](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavcodec/avcodec.c#230-235) during [initialization](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/dom/media/platforms/ffmpeg/FFmpegDataDecoder.cpp#136).

Setting a default size could cause trouble like bug 1872311. One approach is to defer the decoder creation until the decode data is provided. `MediaChangeMonitor` has a mechanism to delay the creation of the decoder. I'll investigate if this is a feasible option, or if there is a simpler way to fix this. 

The full log is here:
```
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder::IsConfigSupported, config: vp8
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, Configure: codec vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 enqueues configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 starts processing configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 has no DecoderAgent to destroy
[Child 58627: Main Thread]: D/WebCodecs Create a VideoInfo from vp8hw accel: no-preference config
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 creates DecoderAgent #4 @ 104a87920 and its shutdown-blocker
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now blocks message-queue-processing
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Unconfigured -> Configuring
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) is creating a decoder (mime: video/vp8) - PreferSW: no, low-latency: no, create-decoder-params: CreateDecoderParams @ 16ba141b0: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::Create, params = CreateDecoderParams @ 16ba13f40: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder updated params = CreateDecoderParams @ 16ba13b80: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::CreateDecoder, current params = CreateDecoderParams @ 16ba13a50: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = Empty, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder::FFmpegVideoDecoder MIME video/vp8 Codec ID 139
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::RemoteMediaDataDecoder: 10c5e2460 is created
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) has created a decoder, now initialize it
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder, init, IsHardwareAccelerated=0
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Initialising FFmpeg decoder
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   codec vp8 : On2 VP8
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Set get_buffer2 for customized buffer allocation
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   Couldn't open avcodec for vp8
[Child 58627: Main Thread]: E/WebCodecs DecoderAgent #4 (104a87920) failed to initialize the decoder
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 configure #4 (vp8) has been rejected. now unblocks message-queue-processing
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 failed to configure: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - MediaResult mozilla::FFmpegDataDecoder<46465650>::InitSWDecoder(AVDictionary **): Couldn't open avcodec
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 destroys DecoderAgent #4 @ 104a87920
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920), shutdown in Error state
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Error -> Unconfigured
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) dtor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now has its message queue unblocked
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::~RemoteMediaDataDecoder: 10c5e2460 is released
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4's shutdown has been resolved. Drop its shutdown-blocker now
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 removes shutdown-blocker #4 before getting any notification. DecoderAgent #4 should have been dropped
```

Revision 1 by

C.M.Chang[:chunmin]

on 2024-12-11 17:18:56 PST

```
...
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
...
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
...
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
...
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
...
```
From the log capturing when running the example code, the configuration fails because the size (width and height) is not set in advance.  The [size check](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavutil/imgutils.c#302) fails in [`avcodec_open2`](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavcodec/avcodec.c#230-235) during [initialization](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/dom/media/platforms/ffmpeg/FFmpegDataDecoder.cpp#136). Setting `codedWidth` and `codedHeight` along with the `codex` fix the issue, e.g. `decoder.configure({codec: 'vp8', codedWidth: 320, codedHeight: 240})`.

Setting a default size could cause trouble like bug 1872311. One approach is to defer the decoder creation until the decode data is provided. `MediaChangeMonitor` has a mechanism to delay the creation of the decoder. I'll investigate if this is a feasible option, or if there is a simpler way to fix this. 

The full log is here:
```
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder::IsConfigSupported, config: vp8
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, Configure: codec vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 enqueues configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 starts processing configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 has no DecoderAgent to destroy
[Child 58627: Main Thread]: D/WebCodecs Create a VideoInfo from vp8hw accel: no-preference config
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 creates DecoderAgent #4 @ 104a87920 and its shutdown-blocker
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now blocks message-queue-processing
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Unconfigured -> Configuring
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) is creating a decoder (mime: video/vp8) - PreferSW: no, low-latency: no, create-decoder-params: CreateDecoderParams @ 16ba141b0: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::Create, params = CreateDecoderParams @ 16ba13f40: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder updated params = CreateDecoderParams @ 16ba13b80: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::CreateDecoder, current params = CreateDecoderParams @ 16ba13a50: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = Empty, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder::FFmpegVideoDecoder MIME video/vp8 Codec ID 139
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::RemoteMediaDataDecoder: 10c5e2460 is created
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) has created a decoder, now initialize it
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder, init, IsHardwareAccelerated=0
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Initialising FFmpeg decoder
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   codec vp8 : On2 VP8
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Set get_buffer2 for customized buffer allocation
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   Couldn't open avcodec for vp8
[Child 58627: Main Thread]: E/WebCodecs DecoderAgent #4 (104a87920) failed to initialize the decoder
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 configure #4 (vp8) has been rejected. now unblocks message-queue-processing
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 failed to configure: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - MediaResult mozilla::FFmpegDataDecoder<46465650>::InitSWDecoder(AVDictionary **): Couldn't open avcodec
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 destroys DecoderAgent #4 @ 104a87920
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920), shutdown in Error state
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Error -> Unconfigured
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) dtor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now has its message queue unblocked
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::~RemoteMediaDataDecoder: 10c5e2460 is released
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4's shutdown has been resolved. Drop its shutdown-blocker now
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 removes shutdown-blocker #4 before getting any notification. DecoderAgent #4 should have been dropped
```

Revision 2 by

C.M.Chang[:chunmin]

on 2024-12-26 17:49:11 PST

```
...
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
...
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
...
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
...
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
...
```
From the log capturing when running the example code, the configuration fails because the size (width and height) is not set in advance.  The [size check](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavutil/imgutils.c#302) fails in [`avcodec_open2`](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/media/ffvpx/libavcodec/avcodec.c#230-235) during [initialization](https://searchfox.org/mozilla-central/rev/8f423e3c79147c65d078589f3666dd25ffe80840/dom/media/platforms/ffmpeg/FFmpegDataDecoder.cpp#136). Setting `codedWidth` and `codedHeight` along with the `codec` fix the issue, e.g. `decoder.configure({codec: 'vp8', codedWidth: 320, codedHeight: 240})`.

Setting a default size could cause trouble like bug 1872311. One approach is to defer the decoder creation until the decode data is provided. `MediaChangeMonitor` has a mechanism to delay the creation of the decoder. I'll investigate if this is a feasible option, or if there is a simpler way to fix this. 

The full log is here:
```
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder::IsConfigSupported, config: vp8
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, Configure: codec vp8
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 enqueues configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 starts processing configure #4 (vp8)
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 has no DecoderAgent to destroy
[Child 58627: Main Thread]: D/WebCodecs Create a VideoInfo from vp8hw accel: no-preference config
[Child 58627: Main Thread]: D/WebCodecs Created a VideoInfo for decoder - VideoInfo: display size: -1x-1 stereo mode: 0image size: -1x-1 codec specific config: 0 bytesextra data: 0 bytesrotation: 0colors: COLOR_8color range: LIMITEDalpha present: false
[Child 58627: Main Thread]: D/WebCodecs IsSupportedVideoCodec: vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) ctor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 creates DecoderAgent #4 @ 104a87920 and its shutdown-blocker
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now blocks message-queue-processing
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Unconfigured -> Configuring
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) is creating a decoder (mime: video/vp8) - PreferSW: no, low-latency: no, create-decoder-params: CreateDecoderParams @ 16ba141b0: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::Create, params = CreateDecoderParams @ 16ba13f40: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder updated params = CreateDecoderParams @ 16ba13b80: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = MediaChangeMonitor, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/MediaDecoder MediaChangeMonitor::CreateDecoder, current params = CreateDecoderParams @ 16ba13a50: mConfig = TrackInfo: id:2 kind:main label: language: enabled:true trackid: 2 mimetype:video/vp8 duration:{0,1000000} media time:{0,1000000} crypto:None rendered externaly: false type:Video, mImageContainer = 10caea000, mError = null, mKnowsCompositor = 10aa0dd60, mCrashHelper = 0, mUseNullDecoder = no, mWrappers = Empty, mType = 2, mOnWaitingForKeyEvent = no, mOptions = Default|KeepOriginalPts, mRate = 0.000000, mMediaEngineId = None, mTrackingId = None, mEncryptedCustomIdent = false
[Child 58627: Main Thread]: D/PlatformDecoderModule Sandbox RDD decoder supports requested type video/vp8
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/PlatformDecoderModule FFmpeg decoder supports requested type 'video/vp8'
[RDD 58620: MediaSupervisor #2]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder::FFmpegVideoDecoder MIME video/vp8 Codec ID 139
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::RemoteMediaDataDecoder: 10c5e2460 is created
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) has created a decoder, now initialize it
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: FFmpegVideoDecoder, init, IsHardwareAccelerated=0
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Initialising FFmpeg decoder
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   codec vp8 : On2 VP8
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX: Set get_buffer2 for customized buffer allocation
[vp8 @ 0x1058afc00] [IMGUTILS @ 0x16b3ba5b0] Picture size 4294967295x4294967295 is invalid
[RDD 58620: MediaPDecoder #1]: D/FFmpegVideo FFVPX:   Couldn't open avcodec for vp8
[Child 58627: Main Thread]: E/WebCodecs DecoderAgent #4 (104a87920) failed to initialize the decoder
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Configuring -> Error
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 configure #4 (vp8) has been rejected. now unblocks message-queue-processing
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500, DecoderAgent #4 failed to configure: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - MediaResult mozilla::FFmpegDataDecoder<46465650>::InitSWDecoder(AVDictionary **): Couldn't open avcodec
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 destroys DecoderAgent #4 @ 104a87920
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920), shutdown in Error state
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) state change: Error -> Unconfigured
[Child 58627: Main Thread]: D/WebCodecs DecoderAgent #4 (104a87920) dtor
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 now has its message queue unblocked
[Child 58627: Main Thread]: E/WebCodecs VideoDecoder 10caae500 Close on error: NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR
[Child 58627: RemVidChild]: D/PlatformDecoderModule RemoteMediaDataDecoder[10c5e2460] ::~RemoteMediaDataDecoder: 10c5e2460 is released
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500, DecoderAgent #4's shutdown has been resolved. Drop its shutdown-blocker now
[Child 58627: Main Thread]: D/WebCodecs VideoDecoder 10caae500 removes shutdown-blocker #4 before getting any notification. DecoderAgent #4 should have been dropped
```

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