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authorPaul Kocialkowski <paul.kocialkowski@bootlin.com>2018-09-13 17:51:52 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-09-24 16:54:21 +0300
commitc27bb30e7b6d385c5bff26406089377d678f1a1d (patch)
treef3c1f2b39c9f23afd325d462416ac19854d4f66a /include/media
parent515c5a7333be87a7d01ab267d94626a454a7e794 (diff)
downloadlinux-c27bb30e7b6d385c5bff26406089377d678f1a1d.tar.xz
media: v4l: Add definitions for MPEG-2 slice format and metadata
Stateless video decoding engines require both the MPEG-2 slices and associated metadata from the video stream in order to decode frames. This introduces definitions for a new pixel format, describing buffers with MPEG-2 slice data, as well as control structure sfor passing the frame metadata to drivers. This is based on work from both Florent Revest and Hugues Fruchet. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-ctrls.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 53ca4df0c353..0dae03dd5b06 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -35,13 +35,15 @@ struct poll_table_struct;
/**
* union v4l2_ctrl_ptr - A pointer to a control value.
- * @p_s32: Pointer to a 32-bit signed value.
- * @p_s64: Pointer to a 64-bit signed value.
- * @p_u8: Pointer to a 8-bit unsigned value.
- * @p_u16: Pointer to a 16-bit unsigned value.
- * @p_u32: Pointer to a 32-bit unsigned value.
- * @p_char: Pointer to a string.
- * @p: Pointer to a compound value.
+ * @p_s32: Pointer to a 32-bit signed value.
+ * @p_s64: Pointer to a 64-bit signed value.
+ * @p_u8: Pointer to a 8-bit unsigned value.
+ * @p_u16: Pointer to a 16-bit unsigned value.
+ * @p_u32: Pointer to a 32-bit unsigned value.
+ * @p_char: Pointer to a string.
+ * @p_mpeg2_slice_params: Pointer to a MPEG2 slice parameters structure.
+ * @p_mpeg2_quantization: Pointer to a MPEG2 quantization data structure.
+ * @p: Pointer to a compound value.
*/
union v4l2_ctrl_ptr {
s32 *p_s32;
@@ -50,6 +52,8 @@ union v4l2_ctrl_ptr {
u16 *p_u16;
u32 *p_u32;
char *p_char;
+ struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params;
+ struct v4l2_ctrl_mpeg2_quantization *p_mpeg2_quantization;
void *p;
};