How to combine audio and video tracks for playback or get StorageFile from the web?

-2

I develop YouTube UWP client and I need to combine video and audio tracks (muxed files are only with 480p and lower). But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

I use Visual Studio 2019 Preview on x64 machine. Minimum target version is Fall Creators Update and target is October 2018 update.

What did I try:

Upgrade minimum version to October 2018 Update

Use StorageFile.GetFileFromApplicationUriAsync(Uri) instead of StorageFile.GetFileFromPathAsync(string).

Then it rises

System.ArgumentException: 'Value does not fall within the expected range.'

According to Microsoft documentation (https://docs.microsoft.com/ru-ru/dotnet/api/system.io.pathtoolongexception?view=netframework-4.7.2):

this exception may be caused by framework incompability but in UWP apps there is no obvious way to directly change target framework.

Here's my code:

MediaComposition muxedStream = new MediaComposition();



BackgroundAudioTrack audioTrack = await BackgroundAudioTrack.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(audioInfo.Url));   //Trying to get file throws an exception

MediaClip videoTrack = await MediaClip.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(videoInfo.Url));



muxedStream.BackgroundAudioTracks.Add(audioTrack);

muxedStream.Clips.Add(videoTrack);



videoSource.SetMediaStreamSource(muxedStream.GenerateMediaStreamSource());

I need to somehow bypass this exception or find another way to combine streams.

Url sample: https://r9---sn-n8v7znsz.googlevideo.com/videoplayback?mime=video%2Fmp4&expire=1546167117&lmt=1543098677581810&aitags=133%2C134%2C135%2C136%2C137%2C160%2C242%2C243%2C244%2C247%2C248%2C278%2C298%2C299%2C302%2C303&sparams=aitags,clen,dur,ei,expire,gir,id,ip,ipbits,ipbypass,itag,keepalive,lmt,mime,mip,mm,mn,ms,mv,nh,pl,requiressl,source&key=cms1&pl=24&ipbits=0&txp=5532432&keepalive=yes&itag=137&requiressl=yes&ei=7U4oXNOULs-fyAWHl74I&ip=95.47.116.128&c=WEB&gir=yes&dur=274.999&id=o-ACk7-_Fgu_caJbjuRbtlayK-dgmNtLEqypLyLfwWbA2j&signature=8173BAF30157D47064F9BE1DB85CB5A910AA5008.28DA3ACEEE47AD89D56E1F162602C99D73751E02&source=youtube&clen=102247371&fvip=15&video_id=xO_XyOsHK6A&title=WOLFENSTEIN+2+SONG+%28COLOSSAL+CARNAGE%29+LYRIC+VIDEO+-+DAGames&rm=sn-uixgxjvh-ig3e7e,sn-3c2ed7y&fexp=23763603&req_id=69d1c8f74394a3ee&redirect_counter=2&cms_redirect=yes&ipbypass=yes&mip=5.187.79.66&mm=29&mn=sn-n8v7znsz&ms=rdu&mt=1546157635&mv=m&nh=IgpwcjA0LnN2bzA2KgkxMjcuMC4wLjE&ir=1&rr=12 (976 characters)

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

Could you use HttpClient instead, and use StorageFile with a stream from an httpResponse.Content.ReadAsStreamAsync()?

– Matthew
Dec 31 '18 at 21:58

2

Don't use StorageFile to download a web resource. stackoverflow.com/a/37806443/17034

– Hans Passant
Dec 31 '18 at 21:58

@HansPassant, I do not need to download files. I need to stream them. At least because downloading will take much more time than streaming and combining them on the run

– XFox
Dec 31 '18 at 22:04

@Matthew, could you provide a bit more details, please?

– XFox
Dec 31 '18 at 22:05

That's awfully vague, google something like "uwp stream audio" to find relevant hits.

– Hans Passant
Dec 31 '18 at 22:06

|
show 1 more comment

-2

I use Visual Studio 2019 Preview on x64 machine. Minimum target version is Fall Creators Update and target is October 2018 update.

What did I try:

Upgrade minimum version to October 2018 Update

Use StorageFile.GetFileFromApplicationUriAsync(Uri) instead of StorageFile.GetFileFromPathAsync(string).

Then it rises

System.ArgumentException: 'Value does not fall within the expected range.'

According to Microsoft documentation (https://docs.microsoft.com/ru-ru/dotnet/api/system.io.pathtoolongexception?view=netframework-4.7.2):

this exception may be caused by framework incompability but in UWP apps there is no obvious way to directly change target framework.

Here's my code:

MediaComposition muxedStream = new MediaComposition();



BackgroundAudioTrack audioTrack = await BackgroundAudioTrack.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(audioInfo.Url));   //Trying to get file throws an exception

MediaClip videoTrack = await MediaClip.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(videoInfo.Url));



muxedStream.BackgroundAudioTracks.Add(audioTrack);

muxedStream.Clips.Add(videoTrack);



videoSource.SetMediaStreamSource(muxedStream.GenerateMediaStreamSource());

I need to somehow bypass this exception or find another way to combine streams.

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

Could you use HttpClient instead, and use StorageFile with a stream from an httpResponse.Content.ReadAsStreamAsync()?

– Matthew
Dec 31 '18 at 21:58

2

Don't use StorageFile to download a web resource. stackoverflow.com/a/37806443/17034

– Hans Passant
Dec 31 '18 at 21:58

@HansPassant, I do not need to download files. I need to stream them. At least because downloading will take much more time than streaming and combining them on the run

– XFox
Dec 31 '18 at 22:04

@Matthew, could you provide a bit more details, please?

– XFox
Dec 31 '18 at 22:05

That's awfully vague, google something like "uwp stream audio" to find relevant hits.

– Hans Passant
Dec 31 '18 at 22:06

|
show 1 more comment

-2

I use Visual Studio 2019 Preview on x64 machine. Minimum target version is Fall Creators Update and target is October 2018 update.

What did I try:

Upgrade minimum version to October 2018 Update

Use StorageFile.GetFileFromApplicationUriAsync(Uri) instead of StorageFile.GetFileFromPathAsync(string).

Then it rises

System.ArgumentException: 'Value does not fall within the expected range.'

According to Microsoft documentation (https://docs.microsoft.com/ru-ru/dotnet/api/system.io.pathtoolongexception?view=netframework-4.7.2):

this exception may be caused by framework incompability but in UWP apps there is no obvious way to directly change target framework.

Here's my code:

MediaComposition muxedStream = new MediaComposition();



BackgroundAudioTrack audioTrack = await BackgroundAudioTrack.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(audioInfo.Url));   //Trying to get file throws an exception

MediaClip videoTrack = await MediaClip.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(videoInfo.Url));



muxedStream.BackgroundAudioTracks.Add(audioTrack);

muxedStream.Clips.Add(videoTrack);



videoSource.SetMediaStreamSource(muxedStream.GenerateMediaStreamSource());

I need to somehow bypass this exception or find another way to combine streams.

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

I use Visual Studio 2019 Preview on x64 machine. Minimum target version is Fall Creators Update and target is October 2018 update.

What did I try:

Upgrade minimum version to October 2018 Update

Use StorageFile.GetFileFromApplicationUriAsync(Uri) instead of StorageFile.GetFileFromPathAsync(string).

Then it rises

System.ArgumentException: 'Value does not fall within the expected range.'

According to Microsoft documentation (https://docs.microsoft.com/ru-ru/dotnet/api/system.io.pathtoolongexception?view=netframework-4.7.2):

this exception may be caused by framework incompability but in UWP apps there is no obvious way to directly change target framework.

Here's my code:

MediaComposition muxedStream = new MediaComposition();



BackgroundAudioTrack audioTrack = await BackgroundAudioTrack.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(audioInfo.Url));   //Trying to get file throws an exception

MediaClip videoTrack = await MediaClip.CreateFromFileAsync(await StorageFile.GetFileFromPathAsync(videoInfo.Url));



muxedStream.BackgroundAudioTracks.Add(audioTrack);

muxedStream.Clips.Add(videoTrack);



videoSource.SetMediaStreamSource(muxedStream.GenerateMediaStreamSource());

I need to somehow bypass this exception or find another way to combine streams.

c# uwp

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

edited Jan 1 at 19:09

asked Dec 31 '18 at 21:51

XFox

296

asked Dec 31 '18 at 21:51

XFox

296

asked Dec 31 '18 at 21:51

XFox

296

Could you use HttpClient instead, and use StorageFile with a stream from an httpResponse.Content.ReadAsStreamAsync()?

– Matthew
Dec 31 '18 at 21:58

2

Don't use StorageFile to download a web resource. stackoverflow.com/a/37806443/17034

– Hans Passant
Dec 31 '18 at 21:58

@HansPassant, I do not need to download files. I need to stream them. At least because downloading will take much more time than streaming and combining them on the run

– XFox
Dec 31 '18 at 22:04

@Matthew, could you provide a bit more details, please?

– XFox
Dec 31 '18 at 22:05

That's awfully vague, google something like "uwp stream audio" to find relevant hits.

– Hans Passant
Dec 31 '18 at 22:06

|
show 1 more comment

Could you use HttpClient instead, and use StorageFile with a stream from an httpResponse.Content.ReadAsStreamAsync()?

– Matthew
Dec 31 '18 at 21:58

2

Don't use StorageFile to download a web resource. stackoverflow.com/a/37806443/17034

– Hans Passant
Dec 31 '18 at 21:58

@HansPassant, I do not need to download files. I need to stream them. At least because downloading will take much more time than streaming and combining them on the run

– XFox
Dec 31 '18 at 22:04

@Matthew, could you provide a bit more details, please?

– XFox
Dec 31 '18 at 22:05

That's awfully vague, google something like "uwp stream audio" to find relevant hits.

– Hans Passant
Dec 31 '18 at 22:06

Could you use HttpClient instead, and use StorageFile with a stream from an httpResponse.Content.ReadAsStreamAsync()?

– Matthew
Dec 31 '18 at 21:58

Don't use StorageFile to download a web resource. stackoverflow.com/a/37806443/17034

– Hans Passant
Dec 31 '18 at 21:58

@HansPassant, I do not need to download files. I need to stream them. At least because downloading will take much more time than streaming and combining them on the run

– XFox
Dec 31 '18 at 22:04

@Matthew, could you provide a bit more details, please?

– XFox
Dec 31 '18 at 22:05

That's awfully vague, google something like "uwp stream audio" to find relevant hits.

– Hans Passant
Dec 31 '18 at 22:06

|
show 1 more comment

2 Answers
2

active

oldest

votes

You can't.

StorageFile.* is for directly accessing files in the in the UWP app's sandboxed file system; accessing files in known folders it has declared Capabilities for; or for making a copy of picked files not for downloading/streaming stuff fromt the Internet.

I quote:

StorageFile.GetFileFromPathAsync

Gets a StorageFile object to represent the file at the specified path.

ArgumentException`

The path cannot be a relative path or a Uri. Check the value of path.

...and

StorageFile.GetFileFromApplicationUriAsync

Gets a StorageFile object to represent the specified Uniform Resource Identifier (URI) app resource. For examples of sample URIs see Load images and assets tailored for scale, theme, high contrast, and others.

var uri = new Windows.Foundation.Uri("ms-appx:///datafile.xml") // <----- SEE
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done( /* Your success and error handlers */ );

You can use this method to access your app's resources using either "ms-appx://" or "ms-appdata://" Uniform Resource Identifier (URI).

OP:

But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

That's a bit of a hint because Windows file system max path is about 255 characters hence why you are getting the error too. It's straight-out rejecting it before it even realises that it's not a path.

answered Jan 1 at 0:43

MickyD

10.8k63354

add a comment |

-1

I've found another solution.

Unfortunately, StorageFile cannot be gotten from the web. But I can use two different players linked with one timeline controller. Here's more detailed solution: How to play video and audio from separate URLs in UWP app?

answered Jan 1 at 19:11

XFox

296

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

You can't.

I quote:

StorageFile.GetFileFromPathAsync

Gets a StorageFile object to represent the file at the specified path.

ArgumentException`

The path cannot be a relative path or a Uri. Check the value of path.

...and

StorageFile.GetFileFromApplicationUriAsync

Gets a StorageFile object to represent the specified Uniform Resource Identifier (URI) app resource. For examples of sample URIs see Load images and assets tailored for scale, theme, high contrast, and others.

var uri = new Windows.Foundation.Uri("ms-appx:///datafile.xml") // <----- SEE
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done( /* Your success and error handlers */ );

You can use this method to access your app's resources using either "ms-appx://" or "ms-appdata://" Uniform Resource Identifier (URI).

OP:

But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

answered Jan 1 at 0:43

MickyD

10.8k63354

add a comment |

You can't.

I quote:

StorageFile.GetFileFromPathAsync

Gets a StorageFile object to represent the file at the specified path.

ArgumentException`

The path cannot be a relative path or a Uri. Check the value of path.

...and

StorageFile.GetFileFromApplicationUriAsync

Gets a StorageFile object to represent the specified Uniform Resource Identifier (URI) app resource. For examples of sample URIs see Load images and assets tailored for scale, theme, high contrast, and others.

var uri = new Windows.Foundation.Uri("ms-appx:///datafile.xml") // <----- SEE
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done( /* Your success and error handlers */ );

You can use this method to access your app's resources using either "ms-appx://" or "ms-appdata://" Uniform Resource Identifier (URI).

OP:

But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

answered Jan 1 at 0:43

MickyD

10.8k63354

add a comment |

You can't.

I quote:

StorageFile.GetFileFromPathAsync

Gets a StorageFile object to represent the file at the specified path.

ArgumentException`

The path cannot be a relative path or a Uri. Check the value of path.

...and

StorageFile.GetFileFromApplicationUriAsync

Gets a StorageFile object to represent the specified Uniform Resource Identifier (URI) app resource. For examples of sample URIs see Load images and assets tailored for scale, theme, high contrast, and others.

var uri = new Windows.Foundation.Uri("ms-appx:///datafile.xml") // <----- SEE
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done( /* Your success and error handlers */ );

You can use this method to access your app's resources using either "ms-appx://" or "ms-appdata://" Uniform Resource Identifier (URI).

OP:

But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

answered Jan 1 at 0:43

MickyD

10.8k63354

You can't.

I quote:

StorageFile.GetFileFromPathAsync

Gets a StorageFile object to represent the file at the specified path.

ArgumentException`

The path cannot be a relative path or a Uri. Check the value of path.

...and

StorageFile.GetFileFromApplicationUriAsync

Gets a StorageFile object to represent the specified Uniform Resource Identifier (URI) app resource. For examples of sample URIs see Load images and assets tailored for scale, theme, high contrast, and others.

var uri = new Windows.Foundation.Uri("ms-appx:///datafile.xml") // <----- SEE
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done( /* Your success and error handlers */ );

You can use this method to access your app's resources using either "ms-appx://" or "ms-appdata://" Uniform Resource Identifier (URI).

OP:

But I can't get StorageFile's because of PathTooLongException (url length is about 800 characters)

answered Jan 1 at 0:43

MickyD

10.8k63354

answered Jan 1 at 0:43

MickyD

10.8k63354

answered Jan 1 at 0:43

MickyD

10.8k63354

answered Jan 1 at 0:43

MickyD

10.8k63354

add a comment |

-1

I've found another solution.

answered Jan 1 at 19:11

XFox

296

add a comment |

-1

I've found another solution.

answered Jan 1 at 19:11

XFox

296

add a comment |

-1

I've found another solution.

answered Jan 1 at 19:11

XFox

296

I've found another solution.

answered Jan 1 at 19:11

XFox

296

answered Jan 1 at 19:11

XFox

296

answered Jan 1 at 19:11

XFox

296

answered Jan 1 at 19:11

XFox

296

add a comment |

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