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by nataraajc
20 Sep 2010 07:57
Forum: Development around libVLC
Topic: How to get the YUV 420 data from the picture_t
Replies: 7
Views: 1210

Re: How to get the YUV 420 data from the picture_t

// Copy Input Video into YUV buffer for( i_line = p_pic->p[Y_PLANE].i_visible_lines; i_line--; ) { memcpy(((*p_buf_Img->imgY_orig)+i_sOff), (p_pic->p[Y_PLANE].p_pixels + i_offset), p_pic->p[Y_PLANE].i_visible_pitch); i_offset += p_pic->p[Y_PLANE].i_pitch; i_sOff += p_pic->p[Y_PLANE].i_visible_pitch...
by nataraajc
20 Sep 2010 07:56
Forum: Development around libVLC
Topic: In which module the Scaling is happening?
Replies: 5
Views: 1177

Re: In which module the Scaling is happening?

I have implemented the scaling in Video Filter. Its working fine. Thanks for the help :)
by nataraajc
13 Sep 2010 13:46
Forum: Development around libVLC
Topic: In which module the Scaling is happening?
Replies: 5
Views: 1177

Re: In which module the Scaling is happening?

Hi.. Pls advice me if anyone knows where the actual Scaling is happening...
by nataraajc
11 Sep 2010 12:44
Forum: Development around libVLC
Topic: In which module the Scaling is happening?
Replies: 5
Views: 1177

Re: In which module the Scaling is happening?

Normally, scaling is done in the GPU. If that's not working, VLC will use libswscale instead.
Hi, Can you be more detailed? Which file I can look for this scaling and change that to my own Scaling algorithm?
by nataraajc
09 Sep 2010 15:12
Forum: Development around libVLC
Topic: In which module the Scaling is happening?
Replies: 5
Views: 1177

In which module the Scaling is happening?

Hi,

I would like to know, where the actual Scaling is implemented in VLC. When we select menu Video->Scale the scaling is happening, is that Hardware scaling?
Can I implement my own scaling algorithm instead of the actual VLC one?

Pls throw some light on this.

Thx
Natz
by nataraajc
09 Sep 2010 15:09
Forum: Development around libVLC
Topic: How to get the YUV 420 data from the picture_t
Replies: 7
Views: 1210

Re: How to get the YUV 420 data from the picture_t

Either your code is wrong, or the chroma is not I420, or you are not using the correct pixel line pitch.
If possible, provide some sample code
by nataraajc
08 Sep 2010 04:58
Forum: Development around libVLC
Topic: How to get the YUV 420 data from the picture_t
Replies: 7
Views: 1210

Re: How to get the YUV 420 data from the picture_t

Did you even peek at other filters or outputs? I guess you are looking for picture_t.plane[{Y,U,V}_PLANE].p_pixels Yea, I looking for this alone. But I have some questions on this. Normally Lum will be of height * width size Cb & Cr each will be of ((height * width)/4) So I write "picture_...
by nataraajc
07 Sep 2010 17:54
Forum: Development around libVLC
Topic: How to get the YUV 420 data from the picture_t
Replies: 7
Views: 1210

How to get the YUV 420 data from the picture_t

Hi All,

I am in a way to write one Video Filter, where I need to get a Y, U & V data into separate memory pointers. How can I get the Lum, Cb & Cr from the picture_t structure? I tried many ways couldn’t find one, pls help.

Thx
Natz
by nataraajc
24 Aug 2010 18:29
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

Itw working fine. Thanks for the help JB.
by nataraajc
22 Aug 2010 06:59
Forum: VLC media player for Windows Troubleshooting
Topic: VLC 1.1.0 don't unload when closed under XP
Replies: 171
Views: 26328

Re: VLC 1.1.0 don't unload when closed under XP

Open VLC, do nothing and quit with the X doesn't unload it?
Yes, Its unloading it perfectly if we do nothing or play only Audio files (.mp3) & JPG also works fine.

Only if we play video we are facing the issues.

Thx
Natz
by nataraajc
22 Aug 2010 06:43
Forum: VLC media player for Windows Troubleshooting
Topic: Difference between video filter & video filter2
Replies: 3
Views: 302

Re: Difference between video filter & video filter2

I came through the link, but I can't find any answer for it! :(
by nataraajc
21 Aug 2010 17:31
Forum: VLC media player for Windows Troubleshooting
Topic: Difference between video filter & video filter2
Replies: 3
Views: 302

Difference between video filter & video filter2

1. Please could someone explain the difference between the "video filter" and "video filter2" architectures and in what situations they should be used? 2. What is the usage of "video filter2" & "video filter"? 3. Is one architecture faster than the other (...
by nataraajc
21 Aug 2010 17:22
Forum: VLC media player for Windows Troubleshooting
Topic: Coimpling VLC v1.1.2 Errors - Pls Help
Replies: 2
Views: 968

Re: Coimpling VLC v1.1.2 Errors - Pls Help

Didn't solve the problem. I followed http://wiki.videolan.org/Win32CompileMSYS. This works fine. Thanks :)
by nataraajc
18 Aug 2010 18:07
Forum: VLC media player for Windows Troubleshooting
Topic: Coimpling VLC v1.1.2 Errors - Pls Help
Replies: 2
Views: 968

Coimpling VLC v1.1.2 Errors - Pls Help

Hi, I am building the VLC v1.1.2. I am new to VLC, so sorry for the basic questions. I am compiling VLC for Windows XP via Cygwin. I am following the "http://wiki.videolan.org/Win32CompileCygwin#Compiling_VLC" for building the VLC. I am facing some compilation errors . I am using the "...
by nataraajc
17 Aug 2010 15:15
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

Thx for the great help :)
Will check and let you know.
by nataraajc
16 Aug 2010 15:51
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

Thanks a lot, let me try and come back. Between I am unable to find the release VLC v1.2.0 in the "http://download.videolan.org/pub/vlc/". We are using VLC for Windows. Pls let me know the link to download it. Thx again :)
by nataraajc
16 Aug 2010 15:01
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

Can I go with mirror.c in VLC v1.1.2? Or gradfun.c is different implementation?
by nataraajc
16 Aug 2010 13:08
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

We are using the VLC v1.1.2, but I couldn't find the "gradfun.c in modules/video_filters/". Hope "mirror.c" also using the same filter concept. So after compiling the filter in the video_filters path, so the filter will automatically list in advanced preferences? Where I can refe...
by nataraajc
16 Aug 2010 12:01
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

We are trying to make it work as Video Filter. But we are unclear about from where the video filter is getting called. And what are the modules we need to add/change to make it work. :(

Pls help. Thx.
by nataraajc
16 Aug 2010 11:17
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Re: Video de-blocking filter Help

Thanks for the quick response. I have it as separate module. I just want to integrate with VLC. What I exactly want to do is, I need to have the decoded buffer to do de-blocking. Then give that buffer for rendering.

Pls throw some lights on it.
by nataraajc
16 Aug 2010 09:17
Forum: Development around libVLC
Topic: Video de-blocking filter Help
Replies: 14
Views: 1382

Video de-blocking filter Help

Hi,

We have come up with our own video de-blocking filter for VLC. We have no clue to integrate the same in the VLC player. Pls help us or throw some light on which module we can focus on to integrate our video de-blocking filter?

Thx
Natz

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