Audio glitch when playing on Qemu

[ak.ashwini]

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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[Sudarshan Bisht]

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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Sudarshan Bisht

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[ak.ashwini]

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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Regards,

Sudarshan Bisht

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[Sudarshan Bisht]

Is this file has audio and video both ? And you want to play both of them ? 

In my opinion you should use playbin or playbin2.

gst-launch playbin2 uri=file:///bin/multipsdemo.ts 

On Mon, Apr 25, 2011 at 11:21 AM, Ashwini Sharma <[hidden email]> wrote:

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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--
Regards,

Sudarshan Bisht

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[hidden email]
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Regards,

Sudarshan Bisht

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[ak.ashwini]

Yes, I want to play both. But as per my requirement i can't use the playbin or playbin2.

 

But i have seen that even with playbin2 i get the glitch in Audio.

 

 

On Mon, Apr 25, 2011 at 11:32 AM, sudarshan bisht <[hidden email]> wrote:

Is this file has audio and video both ? And you want to play both of them ? 

In my opinion you should use playbin or playbin2.

gst-launch playbin2 uri=file:///bin/multipsdemo.ts 

On Mon, Apr 25, 2011 at 11:21 AM, Ashwini Sharma <[hidden email]> wrote:

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

_______________________________________________
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--
Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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[Sudarshan Bisht]

May I know what is the video resolution and fps ? are you running it on Linux machine or on some embedded device/hardware ?  

On Mon, Apr 25, 2011 at 11:59 AM, Ashwini Sharma <[hidden email]> wrote:

Yes, I want to play both. But as per my requirement i can't use the playbin or playbin2.

 

But i have seen that even with playbin2 i get the glitch in Audio.

 

 

On Mon, Apr 25, 2011 at 11:32 AM, sudarshan bisht <[hidden email]> wrote:

Is this file has audio and video both ? And you want to play both of them ? 

In my opinion you should use playbin or playbin2.

gst-launch playbin2 uri=file:///bin/multipsdemo.ts 

On Mon, Apr 25, 2011 at 11:21 AM, Ashwini Sharma <[hidden email]> wrote:

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

--
Regards,

Sudarshan Bisht

_______________________________________________
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[hidden email]
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_______________________________________________
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http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

--
Regards,

Sudarshan Bisht

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[ak.ashwini]

I am having a video of 544x576 at fps=25.

 

I am running it on Qemu.

On Mon, Apr 25, 2011 at 12:09 PM, sudarshan bisht <[hidden email]> wrote:

May I know what is the video resolution and fps ? are you running it on Linux machine or on some embedded device/hardware ?  

On Mon, Apr 25, 2011 at 11:59 AM, Ashwini Sharma <[hidden email]> wrote:

Yes, I want to play both. But as per my requirement i can't use the playbin or playbin2.

 

But i have seen that even with playbin2 i get the glitch in Audio.

 

 

On Mon, Apr 25, 2011 at 11:32 AM, sudarshan bisht <[hidden email]> wrote:

Is this file has audio and video both ? And you want to play both of them ? 

In my opinion you should use playbin or playbin2.

gst-launch playbin2 uri=file:///bin/multipsdemo.ts 

On Mon, Apr 25, 2011 at 11:21 AM, Ashwini Sharma <[hidden email]> wrote:

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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[Sudarshan Bisht]

OK, I am not much familiar to Qemu, but what is the emulated processor speed in your case ? 

It may be a performance issue , If possible you can try running top command when you play your file and see the CPU load. If CPU load is very high then there is a very little chance to do something except reducing the video resolution or fps to some optimum values and then running it.

On Mon, Apr 25, 2011 at 12:15 PM, Ashwini Sharma <[hidden email]> wrote:

I am having a video of 544x576 at fps=25.

 

I am running it on Qemu.

On Mon, Apr 25, 2011 at 12:09 PM, sudarshan bisht <[hidden email]> wrote:

May I know what is the video resolution and fps ? are you running it on Linux machine or on some embedded device/hardware ?  

On Mon, Apr 25, 2011 at 11:59 AM, Ashwini Sharma <[hidden email]> wrote:

Yes, I want to play both. But as per my requirement i can't use the playbin or playbin2.

 

But i have seen that even with playbin2 i get the glitch in Audio.

 

 

On Mon, Apr 25, 2011 at 11:32 AM, sudarshan bisht <[hidden email]> wrote:

Is this file has audio and video both ? And you want to play both of them ? 

In my opinion you should use playbin or playbin2.

gst-launch playbin2 uri=file:///bin/multipsdemo.ts 

On Mon, Apr 25, 2011 at 11:21 AM, Ashwini Sharma <[hidden email]> wrote:

Hi,

 

This is ho my pipeline looks like at qemu:

"gst-launch -v filesrc location=/bin/multipsdemo.ts ! mpegtsparse ! mpegtsdemux  name=demux ! queue max-size-buffers=5000 ! decodebin ! queue max-size-buffers=5000 ! audioconvert ! queue max-size-buffers=5000 ! alsasink sync=false"

 

Can you suggest some modifications which can help.

 

rgds,

Ashwini

On Mon, Apr 25, 2011 at 11:15 AM, sudarshan bisht <[hidden email]> wrote:

Are you using queue element in your pipeline at right places ?

On Thu, Apr 21, 2011 at 10:10 AM, Ashwini Sharma <[hidden email]> wrote:

Hi All,

 

    I am using gstreamer on qemu (0.14.0) to play Audio/video.

I have two cases, when I play a MP3 file, the sound output is fine (continuousand smooth), but when I play a TS or Video file the sound output is having glitches, even if i set the "sync=false" for both the audio and video sink.

 

When i checked the output sample rate by putting printf in the AudioSink write function, i see that the output sample rate is fine , i.e. equal to the input sample rate of the audio stream.

 

Can someone pls help me on this.

 

rgds,

Ashwini

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Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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Regards,

Sudarshan Bisht

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