media-workshop October 2015

media-workshop@linuxtv.org

10 participants
8 discussions

[PATCH v8.4 00/83] Media MC patches
by Mauro Carvalho Chehab 11 Dec '15

11 Dec '15

As requested by Sakari and Hans, I'm re-sending the entire 83 patch series that were already sent to the media ML. NOTE: as agreed on IRC, after getting the ack for those patches, eventually adding newer fixups where needed, we should add this to the media-controller topic branch of our devel tree. Before merging this on the "master" branch, we'll: 1) add a patch series that Sakari is working to allow not using the entity_id for the graph traversal; 2) add a patch converting MC next gen to use a single range, as agreed on IRC; 3) add a patch increasing the maximum number of objects, in order for the graph traversal to work with DVB drivers; 4) get ALSA maintainer's acks for the ALSA changes (on this series and on Shuah's series); 5) add Shuah ALSA patches. I'll do the above work after getting the acks for the patches already sent. Javier Martinez Canillas (13): [media] staging: omap4iss: get entity ID using media_entity_id() [media] omap3isp: get entity ID using media_entity_id() [media] media: use entity.graph_obj.mdev instead of .parent [media] media: remove media entity .parent field [media] omap3isp: separate links creation from entities init [media] omap3isp: create links after all subdevs have been bound [media] staging: omap4iss: separate links creation from entities init [media] v4l: vsp1: create pad links after subdev registration [media] v4l: vsp1: separate links creation from entities init [media] uvcvideo: create pad links after subdev registration [media] smiapp: create pad links after subdev registration [media] media-entity: init pads on entity init if was registered before media: don't try to empty links list in media_entity_cleanup() Mauro Carvalho Chehab (70): [media] media: create a macro to get entity ID [media] media: add a common struct to be embed on media graph objects [media] media: use media_gobj inside entities [media] media: use media_gobj inside pads [media] media: use media_gobj inside links [media] media: add messages when media device gets (un)registered [media] media: add a debug message to warn about gobj creation/removal [media] media: rename the function that create pad links [media] uapi/media.h: Declare interface types for V4L2 and DVB [media] media: add functions to allow creating interfaces [media] uapi/media.h: Declare interface types for ALSA [media] media: Don't accept early-created links [media] media: convert links from array to list [media] media: make add link more generic [media] media: make media_link more generic to handle interace links [media] media: make link debug printk more generic [media] media: add support to link interfaces and entities [media] media-entity: add a helper function to create interface [media] dvbdev: add support for interfaces [media] media: add a linked list to track interfaces by mdev [media] dvbdev: add support for indirect interface links [media] uapi/media.h: Fix entity namespace [media] replace all occurrences of MEDIA_ENT_T_DEVNODE_V4L [media] replace all occurrences of MEDIA_ENT_T_DEVNODE_DVB [media] media: add macros to check if subdev or V4L2 DMA [media] media: use macros to check for V4L2 subdev entities [media] omap3/omap4/davinci: get rid of MEDIA_ENT_T_V4L2_SUBDEV abuse [media] s5c73m3: fix subdev type [media] s5k5baf: fix subdev type [media] davinci_vbpe: stop MEDIA_ENT_T_V4L2_SUBDEV abuse [media] omap4iss: stop MEDIA_ENT_T_V4L2_SUBDEV abuse [media] v4l2-subdev: use MEDIA_ENT_T_UNKNOWN for new subdevs [media] media controller: get rid of entity subtype on Kernel [media] media.h: don't use legacy entity macros at Kernel [media] DocBook: update descriptions for the media controller entities [media] dvb: modify core to implement interfaces/entities at MC new gen [media] media: report if a pad is sink or source at debug msg [media] uapi/media.h: Add MEDIA_IOC_G_TOPOLOGY ioctl [media] media: Use a macro to interate between all interfaces [media] media: move mdev list init to gobj [media] media-device: add pads and links to media_device [media] media_device: add a topology version field [media] media-device: add support for MEDIA_IOC_G_TOPOLOGY ioctl [media] media-entity: unregister entity links [media] remove interface links at media_entity_unregister() [media] media-device: remove interfaces and interface links [media] au0828: unregister MC at the end [media] v4l2-core: create MC interfaces for devnodes [media] media-entity.h: document all the structs [media] tuner-core: add an input pad [media] au0828: add support for the connectors [media] au0828: Create connector links [media] media-device: supress backlinks at G_TOPOLOGY ioctl [media] media-controller: enable all interface links at init [media] media.h: create connector entities for hybrid TV devices [media] dvbdev: returns error if graph object creation fails [media] dvb core: must check dvb_create_media_graph() [media] media-entity: enforce check of interface and links creation [media] cx231xx: enforce check for graph creation [media] au0828:: enforce check for graph creation [media] media-entity: must check media_create_pad_link() [media] media-entity.h: rename entity.type to entity.function [media] media-device: export the entity function via new ioctl [media] uapi/media.h: Rename entities types to functions [media] DocBook: update entities documentation [media] dvbdev: move indirect links on dvr/demux to a separate function [media] dvbdev: Don't create indirect links [media] media_entity: remove gfp_flags argument [media] media-device: use unsigned ints on some places [media] media-entity.c: get rid of var length arrays .../DocBook/media/v4l/media-ioc-enum-entities.xml | 67 +-- Documentation/media-framework.txt | 2 +- Documentation/video4linux/v4l2-framework.txt | 4 +- drivers/media/common/siano/smsdvb-main.c | 6 +- drivers/media/dvb-core/dmxdev.c | 4 +- drivers/media/dvb-core/dvb_ca_en50221.c | 2 +- drivers/media/dvb-core/dvb_frontend.c | 11 +- drivers/media/dvb-core/dvb_net.c | 2 +- drivers/media/dvb-core/dvbdev.c | 392 +++++++++++++---- drivers/media/dvb-core/dvbdev.h | 17 +- drivers/media/dvb-frontends/au8522_decoder.c | 2 +- drivers/media/firewire/firedtv-ci.c | 2 +- drivers/media/i2c/adp1653.c | 2 +- drivers/media/i2c/adv7180.c | 2 +- drivers/media/i2c/as3645a.c | 2 +- drivers/media/i2c/cx25840/cx25840-core.c | 2 +- drivers/media/i2c/lm3560.c | 2 +- drivers/media/i2c/lm3646.c | 2 +- drivers/media/i2c/m5mols/m5mols_core.c | 2 +- drivers/media/i2c/noon010pc30.c | 2 +- drivers/media/i2c/ov2659.c | 2 +- drivers/media/i2c/ov9650.c | 2 +- drivers/media/i2c/s5c73m3/s5c73m3-core.c | 8 +- drivers/media/i2c/s5k4ecgx.c | 2 +- drivers/media/i2c/s5k5baf.c | 8 +- drivers/media/i2c/s5k6aa.c | 2 +- drivers/media/i2c/smiapp/smiapp-core.c | 22 +- drivers/media/i2c/tvp514x.c | 2 +- drivers/media/i2c/tvp7002.c | 2 +- drivers/media/media-device.c | 272 ++++++++++-- drivers/media/media-entity.c | 478 +++++++++++++++++---- drivers/media/pci/bt8xx/dst_ca.c | 3 +- drivers/media/pci/ddbridge/ddbridge-core.c | 2 +- drivers/media/pci/ngene/ngene-core.c | 2 +- drivers/media/pci/ttpci/av7110.c | 2 +- drivers/media/pci/ttpci/av7110_av.c | 4 +- drivers/media/pci/ttpci/av7110_ca.c | 2 +- drivers/media/platform/exynos4-is/common.c | 3 +- drivers/media/platform/exynos4-is/fimc-capture.c | 5 +- drivers/media/platform/exynos4-is/fimc-isp-video.c | 9 +- drivers/media/platform/exynos4-is/fimc-lite.c | 18 +- drivers/media/platform/exynos4-is/media-dev.c | 25 +- drivers/media/platform/exynos4-is/media-dev.h | 8 +- drivers/media/platform/omap3isp/isp.c | 202 +++++---- drivers/media/platform/omap3isp/ispccdc.c | 39 +- drivers/media/platform/omap3isp/ispccdc.h | 1 + drivers/media/platform/omap3isp/ispccp2.c | 35 +- drivers/media/platform/omap3isp/ispccp2.h | 1 + drivers/media/platform/omap3isp/ispcsi2.c | 33 +- drivers/media/platform/omap3isp/ispcsi2.h | 1 + drivers/media/platform/omap3isp/isppreview.c | 48 ++- drivers/media/platform/omap3isp/isppreview.h | 1 + drivers/media/platform/omap3isp/ispresizer.c | 46 +- drivers/media/platform/omap3isp/ispresizer.h | 1 + drivers/media/platform/omap3isp/ispvideo.c | 17 +- drivers/media/platform/s3c-camif/camif-capture.c | 2 +- drivers/media/platform/s3c-camif/camif-core.c | 4 +- drivers/media/platform/vsp1/vsp1_drv.c | 34 +- drivers/media/platform/vsp1/vsp1_rpf.c | 29 +- drivers/media/platform/vsp1/vsp1_rwpf.h | 5 + drivers/media/platform/vsp1/vsp1_video.c | 15 +- drivers/media/platform/vsp1/vsp1_wpf.c | 40 +- drivers/media/platform/xilinx/xilinx-dma.c | 10 +- drivers/media/platform/xilinx/xilinx-vipp.c | 4 +- drivers/media/usb/au0828/au0828-core.c | 98 ++++- drivers/media/usb/au0828/au0828-dvb.c | 8 +- drivers/media/usb/au0828/au0828-video.c | 84 +++- drivers/media/usb/au0828/au0828.h | 3 +- drivers/media/usb/cx231xx/cx231xx-cards.c | 46 +- drivers/media/usb/cx231xx/cx231xx-dvb.c | 6 +- drivers/media/usb/cx231xx/cx231xx-video.c | 10 +- drivers/media/usb/dvb-usb-v2/dvb_usb_core.c | 4 +- drivers/media/usb/dvb-usb/dvb-usb-dvb.c | 6 +- drivers/media/usb/uvc/uvc_entity.c | 25 +- drivers/media/v4l2-core/tuner-core.c | 10 +- drivers/media/v4l2-core/v4l2-dev.c | 112 ++++- drivers/media/v4l2-core/v4l2-device.c | 16 +- drivers/media/v4l2-core/v4l2-flash-led-class.c | 2 +- drivers/media/v4l2-core/v4l2-subdev.c | 8 +- drivers/staging/media/davinci_vpfe/dm365_ipipe.c | 9 +- drivers/staging/media/davinci_vpfe/dm365_ipipeif.c | 15 +- drivers/staging/media/davinci_vpfe/dm365_isif.c | 15 +- drivers/staging/media/davinci_vpfe/dm365_resizer.c | 33 +- .../staging/media/davinci_vpfe/vpfe_mc_capture.c | 10 +- drivers/staging/media/davinci_vpfe/vpfe_video.c | 17 +- drivers/staging/media/omap4iss/iss.c | 123 ++++-- drivers/staging/media/omap4iss/iss_csi2.c | 46 +- drivers/staging/media/omap4iss/iss_csi2.h | 1 + drivers/staging/media/omap4iss/iss_ipipe.c | 9 +- drivers/staging/media/omap4iss/iss_ipipeif.c | 42 +- drivers/staging/media/omap4iss/iss_ipipeif.h | 1 + drivers/staging/media/omap4iss/iss_resizer.c | 40 +- drivers/staging/media/omap4iss/iss_resizer.h | 1 + drivers/staging/media/omap4iss/iss_video.c | 9 +- include/media/media-device.h | 34 +- include/media/media-entity.h | 322 ++++++++++++-- include/media/tuner.h | 8 + include/media/v4l2-dev.h | 1 + include/uapi/linux/media.h | 214 ++++++++- 99 files changed, 2535 insertions(+), 831 deletions(-) -- 2.4.3

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Updated agenda
by Hans Verkuil 26 Oct '15

26 Oct '15

Hi all, A late (small) change: The break was moved up by 30 min since Shuah's talk moved up by the same amount. Regards, Hans ----------------------------------------------------------- Draft agenda for the media workshop October 26, 2015, Seoul, South Korea Room: TBD Please be on time! We start at 9 am, we have a full agenda, so we want to make good use of the time. 9:00-9:15: Get laptops hooked up, the projector running, wireless configured, your coffee cup filled, etc. etc. :-) 9:15-9:30: Hans: Introduction 9:30-10:15: Pawel: Update on codec APIs 10:15-10:30: Mauro: kABI documentation improvements 10:30-11:45: Break Allows time for attending Shuah's talk: http://korealinuxforum2015.sched.org/event/f59175cc49f866dbc9bebc36f86fe663… 11:45-12:15: Junghak: new uAPI for DVB to use streaming I/O 12:15-13:00: Hans: Should we replace v4l2_buffer with a new struct that is y2038-safe and that can be cleaned up and extended? (Think proper support for HW timestamps, etc.). See: https://patchwork.linuxtv.org/patch/31413/ And perhaps use this redesign to add support for multiple streams over one video node? I saw an example where the HW combines two streams into one, basically an m2m device, but today you'd need three nodes: two out and one capture in order to implement this. 13:00-14:30: Lunch 14:30-14:45: Hans: Proposal for adding support for HW colorspace conversion. 14:45-15:00: Hans: poll() behavior for output streams. 15:00-15:15: Hans: Status update of the CEC framework patch series. 15:15-16:00: Hans: Should the v4l2 core just call try_format to validate the format passed in by VIDIOC_CREATE_BUFFERS? Few drivers validate the format and if they do they usually do only partial validation. It's unclear what should happen here. Always calling try_format would also help the vb2 core code. Also discuss DELETE_BUFFERS. 16:00-16:15: Break 16:15-16:30: Mauro: Status update MC discussions: very tentative, and I'm just listing the topics without scheduling them and in no particular order: Mauro: Discuss dynamic subtree removal. The workshop might be too soon to discuss this. Hans: How to implement VIDIOC_SUBDEV_QUERYCAP? (15 min) Shuah: ENT_F_IO appears to be too generic, requiring additional steps to determine what kind of IO function it is really is. I propose preserving and allowing enough uniqueness to enable drivers to tag the functions when they create them. For example, if AUDIO functions are all tagged ENT_F_IO, bridge driver has to determine what kind of IO it really is. This requires finding the Interface entity associated with the function entity or comparing entity name strings. Instead, if a function can be tagged as Audio Capture when it gets created, these additional steps aren't necessary. I estimate 15 min for this topic if we need this. Shuah: Discuss snd-usb-audio control interface mapping to media. snd-usb-audio creates a control device file which could be exposed in a media graph. In some cases, it is a simple mixer control. Expose ENT_F_MIXER entity with an associated interface node MEDIA_INTF_T_ALSA_CONTROL 17:30-17:45: Hans: Discuss future improvements to the workshop format. Right now (as is clear from this schedule) the discussions are very technical, which makes it hard for non-core developers to attend. Perhaps we should do a split format: a half or full day of status updates, discussions to improve application integration, followed by core-developer-only discussions. Regards, Hans

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Skystar S950 on Gentoo Linux 4.0.5 with latest media_build git
by Tamer Higazi 25 Oct '15

25 Oct '15

Hi people, Finally I managed it to compile the media_build" Skystar S950 board. http://git.linuxtv.org/cgit.cgi/media_build.git/about/ and compied the producers firmware in the "/lib/firmware" folder. I am on: Linux tux 4.0.5-gentoo #1 SMP Sat Oct 24 21:49:51 CEST 2015 x86_64 Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz GenuineIntel GNU/Linux What I have figured out that far is that the drivers are loaded successfully in the kernel, but "/dev/dvb" still don't exist. Is the board not fully supported as the producer mentioned ? lspci -v: http://pastebin.com/raw.php?i=1p1K8ge7 lsmod: http://pastebin.com/raw.php?i=GeNNB0xc dmesg: http://pastebin.com/raw.php?i=a9fedCva kernel config: http://pastebin.com/raw.php?i=tTXzz0YA If any of you have a clue what I did wrong, I am happy to hear more about you that might solve my problem to get this board to run. best, Tamer

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media_build fails on Gentoo 4.2 machine....
by Tamer Higazi 24 Oct '15

24 Oct '15

Hi people! I am on a gentoo machine, after updating my kernel, linux header and restarted my machine I wanted to compile "media_build". What could this be ?! That I get this error ? http://pastebin.com/raw.php?i=Ubt5qhP0 output: /storage/downloads/media_build/v4l/videobuf2-core.c:29:30: fatal error: trace/events/vb2.h: No such file or directory #include <trace/events/vb2.h> ^ compilation terminated. scripts/Makefile.build:264: die Regel für Ziel „/storage/downloads/media_build/v4l/videobuf2-core.o“ scheiterte make[3]: *** [/storage/downloads/media_build/v4l/videobuf2-core.o] Fehler 1 Makefile:1386: recipe for target '_module_/storage/downloads/media_build/v4l' failed make[2]: *** [_module_/storage/downloads/media_build/v4l] Error 2 make[2]: Leaving directory '/usr/src/linux-4.2.3-gentoo' Makefile:51: recipe for target 'default' failed make[1]: *** [default] Error 2 make[1]: Leaving directory '/storage/downloads/media_build/v4l' Makefile:26: recipe for target 'all' failed make: *** [all] Error 2 build failed at ./build line 491. thanks! best, Tamer

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media_build fails on Gentoo 4.2 machine....
by Tamer Higazi 24 Oct '15

24 Oct '15

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Draft agenda for the KS media workshop
by Hans Verkuil 19 Oct '15

19 Oct '15

Hi all, This is the draft version of the agenda for the media workshop in Korea. I am assuming that all presenters are subscribed to this mailinglist. Note: the MC topics are tentative. I've placed them at the end, since they might change. They also have a tendency to take over the discussion, so let's do the smaller topics first :-) Mauro, do you know which room we'll be in? I am assuming that we start at 9 am and continue until approx. 5:30 pm. Do you know when the lunch break is? I guessed at the duration of the various topics: please check and let me know if you need more/less time! ----------------------------------------------------------- Draft agenda for the media workshop October 26, 2015, Seoul, South Korea Please be on time! We start at 9 am, we have a full agenda, so we want to make good use of the time. 9:00-9:15: Get laptops hooked up, the projector running, wireless configured, your coffee cup filled, etc. etc. :-) 9:15-9:30: Hans: Introduction 9:30-10:15: Pawel: Update on codec APIs 10:15-10:30: Mauro: kABI documentation improvements 10:30-11:00: Junghak: new uAPI for DVB to use streaming I/O 11:00-11:15: Break 11:15-11:30: Hans: Proposal for adding support for HW colorspace conversion. 11:30-12:30: Hans: Should we replace v4l2_buffer with a new struct that is y2038-safe and that can be cleaned up and extended? (Think proper support for HW timestamps, etc.). See: https://patchwork.linuxtv.org/patch/31413/ And perhaps use this redesign to add support for multiple streams over one video node? I saw an example where the HW combines two streams into one, basically an m2m device, but today you'd need three nodes: two out and one capture in order to implement this. 12:30-13:30: Lunch 13:30-14:00: Hans: Status update of the CEC framework patch series. Discuss if we should really integrate with the RC core (not convinced about this). 14:00-14:30: Hans: Should the v4l2 core just call try_format to validate the format passed in by VIDIOC_CREATE_BUFFERS? Few drivers validate the format and if they do they usually do only partial validation. It's unclear what should happen here. Always calling try_format would also help the vb2 core code. MC discussions: very tentative, and I'm just listing the topics without scheduling them and in no particular order: Mauro: Discuss dynamic subtree removal Hans: How to implement VIDIOC_SUBDEV_QUERYCAP? Shuah: ENT_F_IO appears to be too generic, requiring additional steps to determine what kind of IO function it is really is. I propose preserving and allowing enough uniqueness to enable drivers to tag the functions when they create them. For example, if AUDIO functions are all tagged ENT_F_IO, bridge driver has to determine what kind of IO it really is. This requires finding the Interface entity associated with the function entity or comparing entity name strings. Instead, if a function can be tagged as Audio Capture when it gets created, these additional steps aren't necessary. Shuah: Discuss snd-usb-audio control interface mapping to media. snd-usb-audio creates a control device file which could be exposed in a media graph. In some cases, it is a simple mixer control. Expose ENT_F_MIXER entity with an associated interface node MEDIA_INTF_T_ALSA_CONTROL 17:15-17:30: Hans: Discuss future improvements to the workshop format. Right now (as is clear from this schedule) the discussions are very technical, which makes it hard for non-core developers to attend. Perhaps we should do a split format: a half or full day of status updates, discussions to improve application integration, followed by core-developer-only discussions. Regards, Hans

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V2: Draft agenda for the KS media workshop
by Hans Verkuil 19 Oct '15

19 Oct '15

Hi all, This is the second draft version of the agenda for the media workshop in South Korea. I am assuming that all presenters are subscribed to this mailinglist. Note: the MC topics are still tentative. I've placed them at the end, since they might change. They also have a tendency to take over the discussion, so let's do the smaller topics first :-) I am assuming that we start at 9 am and continue until 5:45 pm (that's when the Korea Linux Forum ends), I've also synced the lunch with the KLF. I guessed at the duration of the various topics: please check and let me know if you need more/less time! Changes since v1: - added poll topic - made time to attend Shuah's ALSA/MC talk ----------------------------------------------------------- Draft agenda for the media workshop October 26, 2015, Seoul, South Korea Room: TBD Please be on time! We start at 9 am, we have a full agenda, so we want to make good use of the time. 9:00-9:15: Get laptops hooked up, the projector running, wireless configured, your coffee cup filled, etc. etc. :-) 9:15-9:30: Hans: Introduction 9:30-10:15: Pawel: Update on codec APIs 10:15-10:30: Mauro: kABI documentation improvements 10:30-11:00: Junghak: new uAPI for DVB to use streaming I/O 11:00-12:15: Break Allows time for attending Shuah's talk: http://korealinuxforum2015.sched.org/event/f59175cc49f866dbc9bebc36f86fe663… 12:15-13:00: Hans: Should we replace v4l2_buffer with a new struct that is y2038-safe and that can be cleaned up and extended? (Think proper support for HW timestamps, etc.). See: https://patchwork.linuxtv.org/patch/31413/ And perhaps use this redesign to add support for multiple streams over one video node? I saw an example where the HW combines two streams into one, basically an m2m device, but today you'd need three nodes: two out and one capture in order to implement this. 13:00-14:30: Lunch 14:30-14:45: Hans: Proposal for adding support for HW colorspace conversion. 14:45-15:00: Hans: poll() behavior for output streams. 15:00-15:15: Hans: Status update of the CEC framework patch series. 15:15-16:00: Hans: Should the v4l2 core just call try_format to validate the format passed in by VIDIOC_CREATE_BUFFERS? Few drivers validate the format and if they do they usually do only partial validation. It's unclear what should happen here. Always calling try_format would also help the vb2 core code. Also discuss DELETE_BUFFERS. 16:00-16:15: Break 16:15-16:30: Mauro: Status update MC discussions: very tentative, and I'm just listing the topics without scheduling them and in no particular order: Mauro: Discuss dynamic subtree removal. The workshop might be too soon to discuss this. Hans: How to implement VIDIOC_SUBDEV_QUERYCAP? (15 min) Shuah: ENT_F_IO appears to be too generic, requiring additional steps to determine what kind of IO function it is really is. I propose preserving and allowing enough uniqueness to enable drivers to tag the functions when they create them. For example, if AUDIO functions are all tagged ENT_F_IO, bridge driver has to determine what kind of IO it really is. This requires finding the Interface entity associated with the function entity or comparing entity name strings. Instead, if a function can be tagged as Audio Capture when it gets created, these additional steps aren't necessary. I estimate 15 min for this topic if we need this. Shuah: Discuss snd-usb-audio control interface mapping to media. snd-usb-audio creates a control device file which could be exposed in a media graph. In some cases, it is a simple mixer control. Expose ENT_F_MIXER entity with an associated interface node MEDIA_INTF_T_ALSA_CONTROL 17:30-17:45: Hans: Discuss future improvements to the workshop format. Right now (as is clear from this schedule) the discussions are very technical, which makes it hard for non-core developers to attend. Perhaps we should do a split format: a half or full day of status updates, discussions to improve application integration, followed by core-developer-only discussions. Regards, Hans _______________________________________________ media-workshop mailing list media-workshop(a)linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop

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Topics for workshop
by Hans Verkuil 07 Oct '15

07 Oct '15

Hi all, I have three topics I'd like to discuss at the upcoming workshop: - CEC framework: v9 was recently posted and other than some documentation work I believe it is ready to be merged. I would like to give a presentation on what CEC is and the design of the framework. Est. 30 minutes + questions. - VIDIOC_SUBDEV_QUERYCAP: we never got an agreement about this, so I'd like to discuss it. Est. 30 minutes (but since it touches on the MC, it could just as easily be several hours!) - Support for HW colorspace conversion. I've been working on this on-and-off and I'd like to discuss how to integrate this in V4L2. Est. 30-45 minutes. Regards, Hans

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media-workshop October 2015