| Message ID | 1641561124-19476-2-git-send-email-quic_dikshita@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Intra-refresh type control | expand |
Le vendredi 07 janvier 2022 à 18:42 +0530, Dikshita Agarwal a écrit : > Add a control to set intra-refresh type. > > Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> > --- > .../userspace-api/media/v4l/ext-ctrls-codec.rst | 27 ++++++++++++++++++++++ > drivers/media/v4l2-core/v4l2-ctrls-defs.c | 10 ++++++++ > include/uapi/linux/v4l2-controls.h | 6 +++++ > 3 files changed, 43 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > index e141f0e..ce0201b 100644 > --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > @@ -1180,6 +1180,33 @@ enum v4l2_mpeg_video_h264_entropy_mode - > is set to non zero value. > Applicable to H264, H263 and MPEG4 encoder. > > +``V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE (enum)`` > + > +enum v4l2_mpeg_video_intra_refresh_type - > + Sets the type of intra refresh. The period to refresh > + the whole frame is specified by V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD. > + Note if the client sets this control to either ``V4L2_MPEG_VIDEO_INTRA_REFRESH_RANDOM`` > + or ``V4L2_MPEG_VIDEO_INTRA_REFRESH_CYCLIC`` the ``V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB`` > + control shall be ignored. > + If the client sets this control to ``V4L2_MPEG_VIDEO_INTRA_REFRESH_NONE`` the > + V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB control shall not be ignored. > + Applicable to H264, H263 and MPEG4 encoder. Possible values are: > + > +.. tabularcolumns:: |p{9.6cm}|p{7.9cm}| > + > +.. flat-table:: > + :header-rows: 0 > + :stub-columns: 0 > + > + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_NONE`` > + - Intra refresh is disabled. Slight annoyance, we now have two mechanism to disable intra refresh. Disabling intra-refresh was previously documented as "Note that this control will not take effect when V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD control is set to non zero value." Perhaps we should drop this and add a similar line in this control documentation ? > + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_RANDOM`` > + - The whole frame is completely refreshed randomly > + after the specified period. > + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_CYCLIC`` > + - The whole frame MBs are completely refreshed in cyclic order > + after the specified period. > + > ``V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD (integer)`` > Intra macroblock refresh period. This sets the period to refresh > the whole frame. In other words, this defines the number of frames > diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c > index 54ca4e6..403c77b 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c > @@ -572,6 +572,12 @@ const char * const *v4l2_ctrl_get_menu(u32 id) > "VBV/CPB Limit", > NULL, > }; > + static const char * const intra_refresh_type[] = { > + "None" > + "Random", > + "Cyclic", > + NULL, > + }; > > switch (id) { > case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: > @@ -705,6 +711,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id) > return hevc_start_code; > case V4L2_CID_CAMERA_ORIENTATION: > return camera_orientation; > + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: > + return intra_refresh_type; > default: > return NULL; > } > @@ -834,6 +842,7 @@ const char *v4l2_ctrl_get_name(u32 id) > case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: return "Decoder Slice Interface"; > case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: return "MPEG4 Loop Filter Enable"; > case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: return "Number of Intra Refresh MBs"; > + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: return "Intra Refresh Type"; > case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD: return "Intra Refresh Period"; > case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: return "Frame Level Rate Control Enable"; > case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control"; > @@ -1360,6 +1369,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, > case V4L2_CID_STATELESS_H264_DECODE_MODE: > case V4L2_CID_STATELESS_H264_START_CODE: > case V4L2_CID_CAMERA_ORIENTATION: > + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: > *type = V4L2_CTRL_TYPE_MENU; > break; > case V4L2_CID_LINK_FREQ: > diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h > index c8e0f84..5429c25 100644 > --- a/include/uapi/linux/v4l2-controls.h > +++ b/include/uapi/linux/v4l2-controls.h > @@ -443,6 +443,12 @@ enum v4l2_mpeg_video_multi_slice_mode { > #define V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (V4L2_CID_CODEC_BASE+234) > #define V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR (V4L2_CID_CODEC_BASE+235) > #define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD (V4L2_CID_CODEC_BASE+236) > +#define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE (V4L2_CID_CODEC_BASE+237) > +enum v4l2_mpeg_video_intra_refresh_type { > + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_NONE = 0, > + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_RANDOM = 1, > + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_CYCLIC = 2, > +}; > > /* CIDs for the MPEG-2 Part 2 (H.262) codec */ > #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_CODEC_BASE+270)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index e141f0e..ce0201b 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -1180,6 +1180,33 @@ enum v4l2_mpeg_video_h264_entropy_mode - is set to non zero value. Applicable to H264, H263 and MPEG4 encoder. +``V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE (enum)`` + +enum v4l2_mpeg_video_intra_refresh_type - + Sets the type of intra refresh. The period to refresh + the whole frame is specified by V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD. + Note if the client sets this control to either ``V4L2_MPEG_VIDEO_INTRA_REFRESH_RANDOM`` + or ``V4L2_MPEG_VIDEO_INTRA_REFRESH_CYCLIC`` the ``V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB`` + control shall be ignored. + If the client sets this control to ``V4L2_MPEG_VIDEO_INTRA_REFRESH_NONE`` the + V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB control shall not be ignored. + Applicable to H264, H263 and MPEG4 encoder. Possible values are: + +.. tabularcolumns:: |p{9.6cm}|p{7.9cm}| + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_NONE`` + - Intra refresh is disabled. + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_RANDOM`` + - The whole frame is completely refreshed randomly + after the specified period. + * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_CYCLIC`` + - The whole frame MBs are completely refreshed in cyclic order + after the specified period. + ``V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD (integer)`` Intra macroblock refresh period. This sets the period to refresh the whole frame. In other words, this defines the number of frames diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c index 54ca4e6..403c77b 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c @@ -572,6 +572,12 @@ const char * const *v4l2_ctrl_get_menu(u32 id) "VBV/CPB Limit", NULL, }; + static const char * const intra_refresh_type[] = { + "None" + "Random", + "Cyclic", + NULL, + }; switch (id) { case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: @@ -705,6 +711,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id) return hevc_start_code; case V4L2_CID_CAMERA_ORIENTATION: return camera_orientation; + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: + return intra_refresh_type; default: return NULL; } @@ -834,6 +842,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: return "Decoder Slice Interface"; case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: return "MPEG4 Loop Filter Enable"; case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: return "Number of Intra Refresh MBs"; + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: return "Intra Refresh Type"; case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD: return "Intra Refresh Period"; case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: return "Frame Level Rate Control Enable"; case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control"; @@ -1360,6 +1369,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_STATELESS_H264_DECODE_MODE: case V4L2_CID_STATELESS_H264_START_CODE: case V4L2_CID_CAMERA_ORIENTATION: + case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE: *type = V4L2_CTRL_TYPE_MENU; break; case V4L2_CID_LINK_FREQ: diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index c8e0f84..5429c25 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -443,6 +443,12 @@ enum v4l2_mpeg_video_multi_slice_mode { #define V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (V4L2_CID_CODEC_BASE+234) #define V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR (V4L2_CID_CODEC_BASE+235) #define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD (V4L2_CID_CODEC_BASE+236) +#define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_TYPE (V4L2_CID_CODEC_BASE+237) +enum v4l2_mpeg_video_intra_refresh_type { + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_NONE = 0, + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_RANDOM = 1, + V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_CYCLIC = 2, +}; /* CIDs for the MPEG-2 Part 2 (H.262) codec */ #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_CODEC_BASE+270)
Add a control to set intra-refresh type. Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> --- .../userspace-api/media/v4l/ext-ctrls-codec.rst | 27 ++++++++++++++++++++++ drivers/media/v4l2-core/v4l2-ctrls-defs.c | 10 ++++++++ include/uapi/linux/v4l2-controls.h | 6 +++++ 3 files changed, 43 insertions(+)