| Message ID | 1606121442-31074-1-git-send-email-dikshita@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] media: v4l2-ctrl: Add base layer priority id control. | expand |
On 23/11/2020 09:50, Dikshita Agarwal wrote: > This control indicates the priority id to be applied id -> ID (ditto in the subject) > to base layer. > > Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org> > --- > Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 9 +++++++++ > drivers/media/v4l2-core/v4l2-ctrls.c | 1 + > include/uapi/linux/v4l2-controls.h | 1 + > 3 files changed, 11 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > index 22222ce..a518d4f 100644 > --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > @@ -4467,3 +4467,12 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > This provides a bitmask which consists of bits [0, LTR_COUNT-1]. > This is applicable to H264 and HEVC encoder and can be applied using > Request Api. > + > +``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)`` > + Specifies a priority identifier for the NAL unit, which will be applied to > + the base layer. By default this value is set to 0 for the base layer, > + and the next layer will have the priority ID assigned as 1, 2, 3 and so on. > + The video encoder can't decide the priority id to be applied to a layer, id -> ID > + so this has to come from client. > + This is applicable to H264 and valid Range is from 0 to 63. > + Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1 > diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c > index 0b81b39..799ab85 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls.c > @@ -961,6 +961,7 @@ const char *v4l2_ctrl_get_name(u32 id) > case V4L2_CID_MPEG_VIDEO_LTR_COUNT: return "LTR Count"; > case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: return "frame LTR index"; > case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: return "Use LTR Frame(s)"; > + case V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID: return "Base Layer Priority ID"; > case V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS: return "MPEG-2 Slice Parameters"; > case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: return "MPEG-2 Quantization Matrices"; > case V4L2_CID_MPEG_VIDEO_FWHT_PARAMS: return "FWHT Stateless Parameters"; > diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h > index b77fa7d..3c4fdc1 100644 > --- a/include/uapi/linux/v4l2-controls.h > +++ b/include/uapi/linux/v4l2-controls.h > @@ -424,6 +424,7 @@ enum v4l2_mpeg_video_multi_slice_mode { > #define V4L2_CID_MPEG_VIDEO_LTR_COUNT (V4L2_CID_MPEG_BASE+230) > #define V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (V4L2_CID_MPEG_BASE+231) > #define V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (V4L2_CID_MPEG_BASE+232) > +#define V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (V4L2_CID_MPEG_BASE + 233) > > /* CIDs for the MPEG-2 Part 2 (H.262) codec */ > #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_MPEG_BASE+270) > Regards, Hans
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index 22222ce..a518d4f 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -4467,3 +4467,12 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - This provides a bitmask which consists of bits [0, LTR_COUNT-1]. This is applicable to H264 and HEVC encoder and can be applied using Request Api. + +``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)`` + Specifies a priority identifier for the NAL unit, which will be applied to + the base layer. By default this value is set to 0 for the base layer, + and the next layer will have the priority ID assigned as 1, 2, 3 and so on. + The video encoder can't decide the priority id to be applied to a layer, + so this has to come from client. + This is applicable to H264 and valid Range is from 0 to 63. + Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1 diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 0b81b39..799ab85 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -961,6 +961,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_LTR_COUNT: return "LTR Count"; case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: return "frame LTR index"; case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: return "Use LTR Frame(s)"; + case V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID: return "Base Layer Priority ID"; case V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS: return "MPEG-2 Slice Parameters"; case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: return "MPEG-2 Quantization Matrices"; case V4L2_CID_MPEG_VIDEO_FWHT_PARAMS: return "FWHT Stateless Parameters"; diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index b77fa7d..3c4fdc1 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -424,6 +424,7 @@ enum v4l2_mpeg_video_multi_slice_mode { #define V4L2_CID_MPEG_VIDEO_LTR_COUNT (V4L2_CID_MPEG_BASE+230) #define V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (V4L2_CID_MPEG_BASE+231) #define V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (V4L2_CID_MPEG_BASE+232) +#define V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (V4L2_CID_MPEG_BASE + 233) /* CIDs for the MPEG-2 Part 2 (H.262) codec */ #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_MPEG_BASE+270)
This control indicates the priority id to be applied to base layer. Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org> --- Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 9 +++++++++ drivers/media/v4l2-core/v4l2-ctrls.c | 1 + include/uapi/linux/v4l2-controls.h | 1 + 3 files changed, 11 insertions(+)