[linux-sunxi] Re: Demo h264 encoding app
R, Are you saying that The TV-IN section does not have a driver implemented as yet? Looking into the kernel sources, i find drivers/media/video/sunxi-csi/ directory which i believe contains the drivers for the TV-IN section. Again, this inference is based purely on skimming through the code and some documentation on the CSI0/CSI1 interfaces only. The veracity of the codebase therein and its usefulness is an assumption on my end right now. Surely, there is someone who has already checked the CSI0 v4L2 driver and CSI1 v4L2 driver for Video Input section already? Please do let me know your thoughts. regards, Vishal Borker On Fri, Apr 3, 2015 at 3:27 AM, Rosimildo DaSilva rosimi...@gmail.com wrote: If you read this thread all the way, you would realize that there is no driver for the TV decoder, the block that handles the TV in on AllWinner devices. Also, if you look when this thread started, it was in 2012, 3 years ago and nothing happened. Based on the track record of AW, always deceiving the customers, with GPL violations and selling H/W without proper functioning software so, don't hold your breath you are going to get anywhere with this kind of H/W. R On Thursday, April 2, 2015 at 9:19:04 AM UTC-5, vis...@nextbitcpu.com wrote: Hello All, I have just purchased and successfully set up the Hummingboard A20 platform. I am interested in developing a real time Media encode solution, and intend to do this using a gStreamer pipeline based implementation. In these regards, i am interested in any pointers on some sample code that could help me test out the TV IN section, encode function, and any documentation that could point me to work ( stable ) that could be a baseline to the efforts. From this thread, i understand there has been quite some work going on in this space, and to cut a long chase short, it would be nice to have some pointers on my best way forward. Please suggest! warm regards, Vishal B. On Friday, October 18, 2013 at 7:30:33 AM UTC+5:30, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jons...@gmail.com -- *TVeeBoX - Sales Marketing Division, * NextBiT Computing Pvt. Ltd., 30/2, IInd Floor, R.K. Plaza, CMH Road, Indiranagar, Bangalore - 560 038, India. *URL: www.nextbitcpu.com http://www.nextbitcpu.comOffice Ph : +91-80-41133238/29Mobile : +91-9916116273email : vis...@nextbitcpu.com vis...@nextbitcpu.comSkype: vishal_borker* -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
Hi Vishal, On Fri, Apr 3, 2015 at 5:37 PM, Vishal B vis...@nextbitcpu.com wrote: R, Are you saying that The TV-IN section does not have a driver implemented as yet? Looking into the kernel sources, i find drivers/media/video/sunxi-csi/ directory which i believe contains the drivers for the TV-IN section. There are three video input devices in SunXi devices: 1. CSI _camera_ input, i.e. from a camera like the one in your phone. There are two channels: CSI0 and CSI1. I believe there is a driver for this in the 3.4 kernel which works. 2. TV decoder, i.e. analog video input. Nothing is known about this. 3. DVB decoder. There was work on a driver, but nothing has materialised as far as I'm aware. Where exactly are you expecting to get your TV input from? Thanks, -- Julian Calaby Email: julian.cal...@gmail.com Profile: http://www.google.com/profiles/julian.calaby/ -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
On Fri, 2015-04-03 at 12:07 +0530, Vishal B wrote: R, Are you saying that The TV-IN section does not have a driver implemented as yet? Looking into the kernel sources, i find drivers/media/video/sunxi- csi/ directory which i believe contains the drivers for the TV-IN section. Believers are often wrong. Again, this inference is based purely on skimming through the code and some documentation on the CSI0/CSI1 interfaces only. The veracity of the codebase therein and its usefulness is an assumption on my end right now. Surely, there is someone who has already checked the CSI0 v4L2 driver and CSI1 v4L2 driver for Video Input section already? Please do let me know your thoughts. regards, Vishal Borker On Fri, Apr 3, 2015 at 3:27 AM, Rosimildo DaSilva rosimi...@gmail.com wrote: If you read this thread all the way, you would realize that there is no driver for the TV decoder, the block that handles the TV in on AllWinner devices. Also, if you look when this thread started, it was in 2012, 3 years ago and nothing happened. Based on the track record of AW, always deceiving the customers, with GPL violations and selling H/W without proper functioning software so, don't hold your breath you are going to get anywhere with this kind of H/W. R On Thursday, April 2, 2015 at 9:19:04 AM UTC-5, vis...@nextbitcpu.comwrote: Hello All, I have just purchased and successfully set up the Hummingboard A20 platform. I am interested in developing a real time Media encode solution, and intend to do this using a gStreamer pipeline based implementation. In these regards, i am interested in any pointers on some sample code that could help me test out the TV IN section, encode function, and any documentation that could point me to work ( stable ) that could be a baseline to the efforts. From this thread, i understand there has been quite some work going on in this space, and to cut a long chase short, it would be nice to have some pointers on my best way forward. Please suggest! warm regards, Vishal B. On Friday, October 18, 2013 at 7:30:33 AM UTC+5:30, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jons...@gmail.com -- TVeeBoX - Sales Marketing Division, NextBiT Computing Pvt. Ltd., 30/2, IInd Floor, R.K. Plaza, CMH Road, Indiranagar, Bangalore - 560 038, India. URL: www.nextbitcpu.com Office Ph : +91-80-41133238/29 Mobile : +91-9916116273 email : vis...@nextbitcpu.com Skype: vishal_borker -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
fre 2015-04-03 klockan 12:07 +0530 skrev Vishal B: Looking into the kernel sources, i find drivers/media/video/sunxi-csi/ directory which i believe contains the drivers for the TV-IN section. That is the digital CSI camera interface, for attaching a digital cameras. Drivers exists for this. The chip also seem to have a TV-in function where it supposedly can decode a PAL/NTSC video signal and encode it in digital form, but very little is known about this function. Some binary drivers exists in various CedarX releases. Additionally the chip also have a digital MPEG transport stream input interface for digital TV input. Documentation exists for this interface, but not sure if there is a driver. Also a lack of hardware using this interface. Regards Henrik -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
fre 2015-04-03 klockan 22:41 +0200 skrev Henrik Nordström: The chip also seem to have a TV-in function where it supposedly can decode a PAL/NTSC video signal and encode it in digital form, but very little is known about this function. Some binary drivers exists in various CedarX releases. Looking in old archives I found this: http://dl.linux-sunxi.org/SDK/A20/A20_SDK_20130319/lichee/linux-3.3/drivers/media/video/sun7i_tvd/ There was some discussion about forward porting of this driver some years ago (2013), but then died. There is some v4l references in there so maybe it does provide a usable interface and the binary CedarX blobs is only for encoding in jpeg/mpeg/whatever after the video have been digitized, not sure. Never tried this driver at all. Regards Henrik -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
Hello Julian, The Kernel features two drivers: - sun7i_tvd - sunxi_csi0 I figure sunxi_csi0 would be the TV in driver on my humming board, which has a TV-IN Minijack interface. This is supposed to receive YPbPr data from an external source. Still trying to get a signal in on there - lack of documentation and support is indeed hindering big time. regards, Vishal Borker On Fri, Apr 3, 2015 at 5:06 PM, Julian Calaby julian.cal...@gmail.com wrote: Hi Vishal, On Fri, Apr 3, 2015 at 5:37 PM, Vishal B vis...@nextbitcpu.com wrote: R, Are you saying that The TV-IN section does not have a driver implemented as yet? Looking into the kernel sources, i find drivers/media/video/sunxi-csi/ directory which i believe contains the drivers for the TV-IN section. There are three video input devices in SunXi devices: 1. CSI _camera_ input, i.e. from a camera like the one in your phone. There are two channels: CSI0 and CSI1. I believe there is a driver for this in the 3.4 kernel which works. 2. TV decoder, i.e. analog video input. Nothing is known about this. 3. DVB decoder. There was work on a driver, but nothing has materialised as far as I'm aware. Where exactly are you expecting to get your TV input from? Thanks, -- Julian Calaby Email: julian.cal...@gmail.com Profile: http://www.google.com/profiles/julian.calaby/ -- You received this message because you are subscribed to a topic in the Google Groups linux-sunxi group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/linux-sunxi/D-2cICv9zbI/unsubscribe. To unsubscribe from this group and all its topics, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- *TVeeBoX - Sales Marketing Division, * NextBiT Computing Pvt. Ltd., 30/2, IInd Floor, R.K. Plaza, CMH Road, Indiranagar, Bangalore - 560 038, India. *URL: www.nextbitcpu.com http://www.nextbitcpu.comOffice Ph : +91-80-41133238/29Mobile : +91-9916116273email : vis...@nextbitcpu.com vis...@nextbitcpu.comSkype: vishal_borker* -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[linux-sunxi] Re: Demo h264 encoding app
If you read this thread all the way, you would realize that there is no driver for the TV decoder, the block that handles the TV in on AllWinner devices. Also, if you look when this thread started, it was in 2012, 3 years ago and nothing happened. Based on the track record of AW, always deceiving the customers, with GPL violations and selling H/W without proper functioning software so, don't hold your breath you are going to get anywhere with this kind of H/W. R On Thursday, April 2, 2015 at 9:19:04 AM UTC-5, vis...@nextbitcpu.com wrote: Hello All, I have just purchased and successfully set up the Hummingboard A20 platform. I am interested in developing a real time Media encode solution, and intend to do this using a gStreamer pipeline based implementation. In these regards, i am interested in any pointers on some sample code that could help me test out the TV IN section, encode function, and any documentation that could point me to work ( stable ) that could be a baseline to the efforts. From this thread, i understand there has been quite some work going on in this space, and to cut a long chase short, it would be nice to have some pointers on my best way forward. Please suggest! warm regards, Vishal B. On Friday, October 18, 2013 at 7:30:33 AM UTC+5:30, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jons...@gmail.com javascript: -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[linux-sunxi] Re: Demo h264 encoding app
Search the sunxi wiki http://linux-sunxi.org/CedarX And for reengineering of video decoder http://linux-sunxi.org/VE_Planning -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[linux-sunxi] Re: Demo h264 encoding app
Hello All, I have just purchased and successfully set up the Hummingboard A20 platform. I am interested in developing a real time Media encode solution, and intend to do this using a gStreamer pipeline based implementation. In these regards, i am interested in any pointers on some sample code that could help me test out the TV IN section, encode function, and any documentation that could point me to work ( stable ) that could be a baseline to the efforts. From this thread, i understand there has been quite some work going on in this space, and to cut a long chase short, it would be nice to have some pointers on my best way forward. Please suggest! warm regards, Vishal B. On Friday, October 18, 2013 at 7:30:33 AM UTC+5:30, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jonsm...@gmail.com -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
I try to use enc_dec_demo modify , but I did not a31 encoding library. -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[linux-sunxi] Re: Demo h264 encoding app
The a31 encoding can use this demo? On Friday, October 18, 2013 at 10:00:33 AM UTC+8, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jons...@gmail.com javascript: -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Re: Demo h264 encoding app
the demo can run on linux? not android. 2015-02-13 9:36 GMT+08:00 lyc.ac...@gmail.com: The a31 encoding can use this demo? On Friday, October 18, 2013 at 10:00:33 AM UTC+8, Jon Smirl wrote: I pushed a demo h264 encoding app to: https://github.com/jonsmirl/cam It seems to be working, but the output file is just a blank image. I'll keep working on it, but if anyone can see what is wrong with it please let me know. Not much too it, about 1,000 lines of code derived from the enc_dec_demo program. I basically deleted all of the display code since it is harder to build and left the encoding code. -- Jon Smirl jons...@gmail.com -- You received this message because you are subscribed to a topic in the Google Groups linux-sunxi group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/linux-sunxi/D-2cICv9zbI/unsubscribe. To unsubscribe from this group and all its topics, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
