| Message ID | 20241022084040.3390878-1-ming.qian@nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add video encoder ROI ctrls | expand |
On 22/10/2024 10:40, Ming Qian wrote: > Hi, > > This patch set implements region of interest (ROI) ctrls for video > encoder. > > One video encoder IP may support the following two ROI configurations or > one of them: > 1. configure ROI as a rectangular region, and set a delta QP parameter. > 2. configure ROI as a rectangular region, and set a priority parameter. > 3. configure ROI as a QP map as an array. Each value represents the delta QP > of a block in raster scan order. The block size is determined by > the specific IP. > 4. configure ROI as a QP map as an array. Each value represents the absolute QP > of a block in raster scan order. The block size is determined by > the specific IP. > > To achieve this, I made the following change: > 1. I reuse the type V4L2_CTRL_TYPE_RECT that is defined in the UVC ROI patchset > 2. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_MODE to choose ROI configuration > 3. Define some ctrl to configure ROI > 4. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_BLOCK_SIZE to query block size > > I referred the patchset "Implement UVC v1.5 ROI" (https://lwn.net/Articles/953532/) > and pick some patches from it. Please note that since this introduces the new TYPE_RECT and WHICH_MIN/MAX flags, you also need to update v4l-utils. This was done last year: https://lore.kernel.org/linux-media/20230817072537.2837504-1-yunkec@google.com/ Can you pick this up and post a v2 for these v4l-utils changes? Note that I had some comments at the time, so please fix those before posting v2. Regards, Hans > > changelog: > > v3 > - Drop the type V4L2_CTRL_TYPE_REGION > - Split the compound control into 2 ctrls > - Define 4 ROI mode > > v2 > - export symbol of v4l2_ctrl_type_op_minimum > - export symbol of v4l2_ctrl_type_op_maximum > > Hans Verkuil (1): > media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL > > Ming Qian (1): > media: v4l2-ctrls: Add video encoder ROI ctrls > > Yunke Cao (2): > media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT > media: vivid: Add an rectangle control > > .../media/v4l/ext-ctrls-codec.rst | 95 ++++++++++ > .../media/v4l/vidioc-g-ext-ctrls.rst | 26 ++- > .../media/v4l/vidioc-queryctrl.rst | 14 ++ > .../media/videodev2.h.rst.exceptions | 4 + > drivers/media/i2c/imx214.c | 4 +- > .../media/platform/qcom/venus/venc_ctrls.c | 9 +- > .../media/test-drivers/vivid/vivid-ctrls.c | 34 ++++ > drivers/media/v4l2-core/v4l2-ctrls-api.c | 54 ++++-- > drivers/media/v4l2-core/v4l2-ctrls-core.c | 169 +++++++++++++++--- > drivers/media/v4l2-core/v4l2-ctrls-defs.c | 46 +++++ > drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- > include/media/v4l2-ctrls.h | 62 ++++++- > include/uapi/linux/v4l2-controls.h | 16 ++ > include/uapi/linux/videodev2.h | 5 + > 14 files changed, 493 insertions(+), 49 deletions(-) >
Hi Hans, On 2024/10/28 15:57, Hans Verkuil wrote: > On 22/10/2024 10:40, Ming Qian wrote: >> Hi, >> >> This patch set implements region of interest (ROI) ctrls for video >> encoder. >> >> One video encoder IP may support the following two ROI configurations or >> one of them: >> 1. configure ROI as a rectangular region, and set a delta QP parameter. >> 2. configure ROI as a rectangular region, and set a priority parameter. >> 3. configure ROI as a QP map as an array. Each value represents the delta QP >> of a block in raster scan order. The block size is determined by >> the specific IP. >> 4. configure ROI as a QP map as an array. Each value represents the absolute QP >> of a block in raster scan order. The block size is determined by >> the specific IP. >> >> To achieve this, I made the following change: >> 1. I reuse the type V4L2_CTRL_TYPE_RECT that is defined in the UVC ROI patchset >> 2. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_MODE to choose ROI configuration >> 3. Define some ctrl to configure ROI >> 4. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_BLOCK_SIZE to query block size >> >> I referred the patchset "Implement UVC v1.5 ROI" (https://lwn.net/Articles/953532/) >> and pick some patches from it. > > Please note that since this introduces the new TYPE_RECT and WHICH_MIN/MAX flags, > you also need to update v4l-utils. > > This was done last year: > > https://lore.kernel.org/linux-media/20230817072537.2837504-1-yunkec@google.com/ > > Can you pick this up and post a v2 for these v4l-utils changes? Note that I had some > comments at the time, so please fix those before posting v2. I'll check the patch first, and pick it. > > Regards, > > Hans > >> >> changelog: >> >> v3 >> - Drop the type V4L2_CTRL_TYPE_REGION >> - Split the compound control into 2 ctrls >> - Define 4 ROI mode >> >> v2 >> - export symbol of v4l2_ctrl_type_op_minimum >> - export symbol of v4l2_ctrl_type_op_maximum >> >> Hans Verkuil (1): >> media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL >> >> Ming Qian (1): >> media: v4l2-ctrls: Add video encoder ROI ctrls >> >> Yunke Cao (2): >> media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT >> media: vivid: Add an rectangle control >> >> .../media/v4l/ext-ctrls-codec.rst | 95 ++++++++++ >> .../media/v4l/vidioc-g-ext-ctrls.rst | 26 ++- >> .../media/v4l/vidioc-queryctrl.rst | 14 ++ >> .../media/videodev2.h.rst.exceptions | 4 + >> drivers/media/i2c/imx214.c | 4 +- >> .../media/platform/qcom/venus/venc_ctrls.c | 9 +- >> .../media/test-drivers/vivid/vivid-ctrls.c | 34 ++++ >> drivers/media/v4l2-core/v4l2-ctrls-api.c | 54 ++++-- >> drivers/media/v4l2-core/v4l2-ctrls-core.c | 169 +++++++++++++++--- >> drivers/media/v4l2-core/v4l2-ctrls-defs.c | 46 +++++ >> drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- >> include/media/v4l2-ctrls.h | 62 ++++++- >> include/uapi/linux/v4l2-controls.h | 16 ++ >> include/uapi/linux/videodev2.h | 5 + >> 14 files changed, 493 insertions(+), 49 deletions(-) >> >
Hi, This patch set implements region of interest (ROI) ctrls for video encoder. One video encoder IP may support the following two ROI configurations or one of them: 1. configure ROI as a rectangular region, and set a delta QP parameter. 2. configure ROI as a rectangular region, and set a priority parameter. 3. configure ROI as a QP map as an array. Each value represents the delta QP of a block in raster scan order. The block size is determined by the specific IP. 4. configure ROI as a QP map as an array. Each value represents the absolute QP of a block in raster scan order. The block size is determined by the specific IP. To achieve this, I made the following change: 1. I reuse the type V4L2_CTRL_TYPE_RECT that is defined in the UVC ROI patchset 2. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_MODE to choose ROI configuration 3. Define some ctrl to configure ROI 4. Define a ctrl V4L2_CID_MPEG_VIDEO_ROI_BLOCK_SIZE to query block size I referred the patchset "Implement UVC v1.5 ROI" (https://lwn.net/Articles/953532/) and pick some patches from it. changelog: v3 - Drop the type V4L2_CTRL_TYPE_REGION - Split the compound control into 2 ctrls - Define 4 ROI mode v2 - export symbol of v4l2_ctrl_type_op_minimum - export symbol of v4l2_ctrl_type_op_maximum Hans Verkuil (1): media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL Ming Qian (1): media: v4l2-ctrls: Add video encoder ROI ctrls Yunke Cao (2): media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT media: vivid: Add an rectangle control .../media/v4l/ext-ctrls-codec.rst | 95 ++++++++++ .../media/v4l/vidioc-g-ext-ctrls.rst | 26 ++- .../media/v4l/vidioc-queryctrl.rst | 14 ++ .../media/videodev2.h.rst.exceptions | 4 + drivers/media/i2c/imx214.c | 4 +- .../media/platform/qcom/venus/venc_ctrls.c | 9 +- .../media/test-drivers/vivid/vivid-ctrls.c | 34 ++++ drivers/media/v4l2-core/v4l2-ctrls-api.c | 54 ++++-- drivers/media/v4l2-core/v4l2-ctrls-core.c | 169 +++++++++++++++--- drivers/media/v4l2-core/v4l2-ctrls-defs.c | 46 +++++ drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- include/media/v4l2-ctrls.h | 62 ++++++- include/uapi/linux/v4l2-controls.h | 16 ++ include/uapi/linux/videodev2.h | 5 + 14 files changed, 493 insertions(+), 49 deletions(-)