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VLC compile

posted in Uncategorized
Tuesday, May 17 2011, 11:24 AM
biga
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Hi! I\\\'d like to cross-compile VLC, but I need to install dependencies to the SDK, for example liblua5.1 (and of course others). How can I do that? \\\"opkg-target list\\\" doesn\\\'t show this package. Is it possible to set up a package list or repository which contains this library? How can I install the needed dependencies into the SDK? Thanks for your replies, bigA.
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  • Accepted Answer

    Tuesday, May 17 2011, 12:42 PM - #permalink
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    This package is not available in our repositories so you also need to build build the liblua library.
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  • Accepted Answer

    biga
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    Friday, May 20 2011, 12:41 PM - #permalink
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    A lot of dependencies have to be installed, so opkg is not an option. Most of the packages are not in the repo. I successfully compiled (it took about 2-3 hours) vlc directly on the board after a \\\'sudo apt-get build vlc-dep\\\'. Is it possible to do something similar inside the VM? It is very hard work to install manually all the dependencies needed. The Linaro repo contains all packages compiled to ARM and is available by apt-get. Anyway, VLC has got ARM NEON support, so I could transcode and stream a webcam video in h.264 and the proc usage was about only 20%. Here comes the question: what is the different between DaVinci and NEON? Both are using the DSP chip?
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    mcaro
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    Saturday, May 21 2011, 08:19 PM - #permalink
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    Here comes the question: what is the different between DaVinci and NEON? Both are using the DSP chip?
    Neon it\\\'s a ARM co-processor that don\\\'t have any relationship with IVA2.2 subsystem, the DSP C64+ is inside IVA2.2. Actually we provide a gstreamer libraries based for use IVA2.2 subsystem, you can take a look here: [url=http://labs.igep.es/index.php/IGEP_GST_FRAMEWORK_3.00.00]http://labs.igep.es/index.php/IGEP_GST_ ... RK_3.00.00[/url] Manel
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    biga
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    Sunday, May 22 2011, 12:13 PM - #permalink
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    Thanks Manel, I\\\'ll give it a try, but streaming video with gstreamer is more difficult than in VLC, and I am not sure that the facedetect feature will work. My project\\\'s goal to create an application which performs facetracking by moving servos and stream the processed video to flash or other player. I would use any multimedia framework or application which supports OpenCV facedetection. Gstreamer and VLC both support them, but now I found other issues that I can\\\'t get over. The original OpenCV library was optimized to Intel/PowerPC architecture so cvHaarDetectObjects function causes segmentation faults when I call it on the ARM board, because floating point operations are not supported (?!). Do you know about any other solution that I can use to implement the features above? There is a project to port OpenCV low level functions to ARM+DSP, but I didn\\\'t find any solution to the facedetection. Thanks for your reply.
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  • Accepted Answer

    mcaro
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    Monday, May 23 2011, 11:39 PM - #permalink
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    Do you know about any other solution that I can use to implement the features above?
    Did you check use matlab?
    There is a project to port OpenCV low level functions to ARM+DSP, but I didn\\\'t find any solution to the facedetection.
    Do you check the imlib from TI ... I don\\\'t remember if it include the facedetection algorithm but TI has several libraries for DSP that can work well inside the C64+ Cheers Manel
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