Re: tw5864 driver development, help needed
An update: see there: http://ffmpeg.org/pipermail/ffmpeg-devel/2015-July/175796.html -- Bluecherry developer. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: tw5864 driver development, help needed
An update with a request for help. Asking for help with h264 headers generation. Both copying headers from similar videos and porting headers generation code from reference driver don't work for me (ref driver is weird and very complicated, so porting involved importing of lots of code, but still in my case the generated header differs from the one produced by reference driver, and resulting files are not decodable). Wireshark seems not able to dissect raw h264 files, so that I could compare headers bitfield-wise. I have dumped 64 first encoded frames as they appear from hardware, so that you could look at it. This is archive: http://lizard.bluecherry.net/~autkin/vlc.tar.gz and this is contents list of archive http://lizard.bluecherry.net/~autkin/vlc.contents Only one camera is attached to this multi-channel video grabber and encoder, and i don't know which chip has it (4, 5, 6 or 7). The produced frames should have the same settings as this file: http://lizard.bluecherry.net/~autkin/test_main.h264 This is PAL D1, 720x576. Thanks in advance for any help. At last, the ability to look at visualization of those h264 streams would be great. -- Bluecherry developer. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: tw5864 driver development, help needed
On Fri, Jul 3, 2015 at 5:23 PM, Andrey Utkin andrey.ut...@corp.bluecherry.net wrote: Up... we are moving much slower than we expected, desperately needing help. Running reference driver with Ubuntu 9 (with kernel 2.6.28.10) with 16-port card shows that the reference driver fails to work with it correctly. Also that driver is not complete, it requires your userland counterpart for usable operation, which is far from being acceptable in production. Currently what stops us with our driver is that H264 encoding done interrupt doesn't repeat, and CRC checksums mismatch for the first (and last) time this interrupt happens. We do our best to mimic what the reference driver does, but we might miss some point. I suspect that my initialization of video inputs or board clock configuration is insufficient or inconsistent with what device needs. Our work in progress is located in https://github.com/krieger-od/linux, directory drivers/staging/media/tw5864 This is another request for expert help. The time is very important for us now. Thanks in advance and sorry for distraction. Thanks for all who contacted us! Now we know we can count on you. Just a small update so that you know the status of the project (and so that you won't proceed looking into the last described issue, if this is the case). We have interrupts repeating, and CRC checksums matching. Now we are working on formatting of h264 stream (the frames are returned without any headers, and reference driver has header generation deeply and tightly bound to other code, so this will take some time. The latest state of this work in progress is in github.com/krieger-od/linux.git , branch brutal. -- Bluecherry developer. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: tw5864 driver development, help needed
On Wed, Jun 3, 2015 at 1:03 AM, Andrey Utkin andrey.ut...@corp.bluecherry.net wrote: Hi! I am working on making a Linux driver for TW5864-based videoaudio capture and encoding PCI boards. The driver is to be submitted for inclusion to Linux upstream. The following two links are links to boards available for buying: http://www.provideo.com.tw/web/DVR%20Card_TW-310.htm http://www.provideo.com.tw/web/DVR%20Card_TW-320.htm We possess one 8-port board and we try to make it play. http://whdd.org/tw5864/TW-3XX_Linux.rar - this is reference driver code. Overwhelmingly complicated IMO. http://whdd.org/tw5864/tw5864b1-ds.pdf - Datasheet. http://whdd.org/tw5864/TW5864_datasheet_0.6d.pdf - Another datasheet. These two differ in some minor points. https://github.com/krieger-od/linux - my work in progress on this, in drivers/staging/media/tw5864 directory. Derived from drivers/media/pci/tw68 (which is raw video capture card), defined reasonable part of registers, now trying to make device produce video capture and encoding interrupts, but cannot get any interrupts except GPIO and timer ones. This is currently the critical blocking issue in development. I hope that somebody experienced with similar boards would have quesswork on how to proceed. My work-on-progress code is dirty, so if you would agree to check that only if it will be cleaned up, please let me know. I am willing to pay for productive help. -- Bluecherry developer. Up... we are moving much slower than we expected, desperately needing help. Running reference driver with Ubuntu 9 (with kernel 2.6.28.10) with 16-port card shows that the reference driver fails to work with it correctly. Also that driver is not complete, it requires your userland counterpart for usable operation, which is far from being acceptable in production. Currently what stops us with our driver is that H264 encoding done interrupt doesn't repeat, and CRC checksums mismatch for the first (and last) time this interrupt happens. We do our best to mimic what the reference driver does, but we might miss some point. I suspect that my initialization of video inputs or board clock configuration is insufficient or inconsistent with what device needs. Our work in progress is located in https://github.com/krieger-od/linux, directory drivers/staging/media/tw5864 This is another request for expert help. The time is very important for us now. Thanks in advance and sorry for distraction. -- Bluecherry developer. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
tw5864 driver development, help needed
Hi! I am working on making a Linux driver for TW5864-based videoaudio capture and encoding PCI boards. The driver is to be submitted for inclusion to Linux upstream. The following two links are links to boards available for buying: http://www.provideo.com.tw/web/DVR%20Card_TW-310.htm http://www.provideo.com.tw/web/DVR%20Card_TW-320.htm We possess one 8-port board and we try to make it play. http://whdd.org/tw5864/TW-3XX_Linux.rar - this is reference driver code. Overwhelmingly complicated IMO. http://whdd.org/tw5864/tw5864b1-ds.pdf - Datasheet. http://whdd.org/tw5864/TW5864_datasheet_0.6d.pdf - Another datasheet. These two differ in some minor points. https://github.com/krieger-od/linux - my work in progress on this, in drivers/staging/media/tw5864 directory. Derived from drivers/media/pci/tw68 (which is raw video capture card), defined reasonable part of registers, now trying to make device produce video capture and encoding interrupts, but cannot get any interrupts except GPIO and timer ones. This is currently the critical blocking issue in development. I hope that somebody experienced with similar boards would have quesswork on how to proceed. My work-on-progress code is dirty, so if you would agree to check that only if it will be cleaned up, please let me know. I am willing to pay for productive help. -- Bluecherry developer. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html