| Message ID | 20190426195114.5002-5-andrealmeid@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: vimc: Add support for multiplanar formats | expand |
On 4/26/19 9:51 PM, André Almeida wrote: > Move sp2mp functions from vivid code to v4l2-common as it will be reused > by vimc driver for multiplanar support. > > Signed-off-by: André Almeida <andrealmeid@collabora.com> > Acked-by: Helen Koike <helen.koike@collabora.com> > --- > Changes in v5: none > Changes in v4: none > > Changes in v3: > - Change commit order > - Reword comments > > Changes in v2: > - Fix indentation > - Change the style of comments. Functions now have a shorter title and a > better description bellow > > drivers/media/platform/vivid/vivid-vid-cap.c | 6 +- > .../media/platform/vivid/vivid-vid-common.c | 59 ------------------ > .../media/platform/vivid/vivid-vid-common.h | 9 --- > drivers/media/platform/vivid/vivid-vid-out.c | 6 +- > drivers/media/v4l2-core/v4l2-common.c | 62 +++++++++++++++++++ > include/media/v4l2-common.h | 37 +++++++++++ > 6 files changed, 105 insertions(+), 74 deletions(-) > > diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c > index 530ac8decb25..208f1094b998 100644 > --- a/drivers/media/platform/vivid/vivid-vid-cap.c > +++ b/drivers/media/platform/vivid/vivid-vid-cap.c > @@ -815,7 +815,7 @@ int vidioc_g_fmt_vid_cap(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); > } > > int vidioc_try_fmt_vid_cap(struct file *file, void *priv, > @@ -825,7 +825,7 @@ int vidioc_try_fmt_vid_cap(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); > } > > int vidioc_s_fmt_vid_cap(struct file *file, void *priv, > @@ -835,7 +835,7 @@ int vidioc_s_fmt_vid_cap(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); > } > > int vivid_vid_cap_g_selection(struct file *file, void *priv, > diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c > index 74b83bcc6119..3dd3a05d2e67 100644 > --- a/drivers/media/platform/vivid/vivid-vid-common.c > +++ b/drivers/media/platform/vivid/vivid-vid-common.c > @@ -674,65 +674,6 @@ void vivid_send_source_change(struct vivid_dev *dev, unsigned type) > } > } > > -/* > - * Conversion function that converts a single-planar format to a > - * single-plane multiplanar format. > - */ > -void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt) > -{ > - struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp; > - struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; > - const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix; > - bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT; > - > - memset(mp->reserved, 0, sizeof(mp->reserved)); > - mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : > - V4L2_CAP_VIDEO_CAPTURE_MPLANE; > - mp->width = pix->width; > - mp->height = pix->height; > - mp->pixelformat = pix->pixelformat; > - mp->field = pix->field; > - mp->colorspace = pix->colorspace; > - mp->xfer_func = pix->xfer_func; > - /* Also copies hsv_enc */ > - mp->ycbcr_enc = pix->ycbcr_enc; > - mp->quantization = pix->quantization; > - mp->num_planes = 1; > - mp->flags = pix->flags; > - ppix->sizeimage = pix->sizeimage; > - ppix->bytesperline = pix->bytesperline; > - memset(ppix->reserved, 0, sizeof(ppix->reserved)); > -} > - > -int fmt_sp2mp_func(struct file *file, void *priv, > - struct v4l2_format *f, fmtfunc func) > -{ > - struct v4l2_format fmt; > - struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp; > - struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; > - struct v4l2_pix_format *pix = &f->fmt.pix; > - int ret; > - > - /* Converts to a mplane format */ > - fmt_sp2mp(f, &fmt); > - /* Passes it to the generic mplane format function */ > - ret = func(file, priv, &fmt); > - /* Copies back the mplane data to the single plane format */ > - pix->width = mp->width; > - pix->height = mp->height; > - pix->pixelformat = mp->pixelformat; > - pix->field = mp->field; > - pix->colorspace = mp->colorspace; > - pix->xfer_func = mp->xfer_func; > - /* Also copies hsv_enc */ > - pix->ycbcr_enc = mp->ycbcr_enc; > - pix->quantization = mp->quantization; > - pix->sizeimage = ppix->sizeimage; > - pix->bytesperline = ppix->bytesperline; > - pix->flags = mp->flags; > - return ret; > -} > - > int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r) > { > unsigned w = r->width; > diff --git a/drivers/media/platform/vivid/vivid-vid-common.h b/drivers/media/platform/vivid/vivid-vid-common.h > index 29b6c0b40a1b..13adea56baa0 100644 > --- a/drivers/media/platform/vivid/vivid-vid-common.h > +++ b/drivers/media/platform/vivid/vivid-vid-common.h > @@ -8,15 +8,6 @@ > #ifndef _VIVID_VID_COMMON_H_ > #define _VIVID_VID_COMMON_H_ > > -typedef int (*fmtfunc)(struct file *file, void *priv, struct v4l2_format *f); > - > -/* > - * Conversion function that converts a single-planar format to a > - * single-plane multiplanar format. > - */ > -void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt); > -int fmt_sp2mp_func(struct file *file, void *priv, > - struct v4l2_format *f, fmtfunc func); > > extern const struct v4l2_dv_timings_cap vivid_dv_timings_cap; > > diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c > index 9350ca65dd91..e9d68ccbcc5d 100644 > --- a/drivers/media/platform/vivid/vivid-vid-out.c > +++ b/drivers/media/platform/vivid/vivid-vid-out.c > @@ -612,7 +612,7 @@ int vidioc_g_fmt_vid_out(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out); > } > > int vidioc_try_fmt_vid_out(struct file *file, void *priv, > @@ -622,7 +622,7 @@ int vidioc_try_fmt_vid_out(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out); > } > > int vidioc_s_fmt_vid_out(struct file *file, void *priv, > @@ -632,7 +632,7 @@ int vidioc_s_fmt_vid_out(struct file *file, void *priv, > > if (dev->multiplanar) > return -ENOTTY; > - return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out); > + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out); > } > > int vivid_vid_out_g_selection(struct file *file, void *priv, > diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c > index b5778b2ffa27..0aeec23e0cef 100644 > --- a/drivers/media/v4l2-core/v4l2-common.c > +++ b/drivers/media/v4l2-core/v4l2-common.c > @@ -631,3 +631,65 @@ int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, int pixelformat, int width, > return 0; > } > EXPORT_SYMBOL_GPL(v4l2_fill_pixfmt); > + > +/* > + * Conversion functions that convert a single-planar format to a > + * multi-planar format. > + */ > +void v4l2_fmt_sp2mp(const struct v4l2_format *sp_fmt, > + struct v4l2_format *mp_fmt) > +{ > + struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp; > + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; > + const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix; > + bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT; > + > + memset(mp->reserved, 0, sizeof(mp->reserved)); > + mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : > + V4L2_CAP_VIDEO_CAPTURE_MPLANE; > + mp->width = pix->width; > + mp->height = pix->height; > + mp->pixelformat = pix->pixelformat; > + mp->field = pix->field; > + mp->colorspace = pix->colorspace; > + mp->xfer_func = pix->xfer_func; > + /* Also copies hsv_enc */ > + mp->ycbcr_enc = pix->ycbcr_enc; > + mp->quantization = pix->quantization; > + mp->num_planes = 1; > + mp->flags = pix->flags; > + ppix->sizeimage = pix->sizeimage; > + ppix->bytesperline = pix->bytesperline; > + memset(ppix->reserved, 0, sizeof(ppix->reserved)); > +} > +EXPORT_SYMBOL_GPL(v4l2_fmt_sp2mp); Is this function ever used outside v4l2_fmt_sp2mp_func()? I suspect that this doesn't have to be exported at all and can just be a static function. Even better, it can be moved into v4l2_fmt_sp2mp_func(). I'm not sure why this is a separate function in vivid. I have a faint memory that originally I had fmt_sp2mp and fmt_mp2sp functions, but then I created fmt_sp2mp_func() and for some reason kept fmt_sp2mp as a separate function. Since we're moving this to v4l2-common.c I think this is a good time to clean this up. > + > +int v4l2_fmt_sp2mp_func(struct file *file, void *priv, struct v4l2_format *f, > + v4l2_fmtfunc func) > +{ > + struct v4l2_format fmt; > + struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp; > + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; > + struct v4l2_pix_format *pix = &f->fmt.pix; > + int ret; > + > + /* Converts to a mplane format */ > + v4l2_fmt_sp2mp(f, &fmt); > + /* Passes it to the generic mplane format function */ > + ret = func(file, priv, &fmt); > + /* Copies back the mplane data to the single plane format */ > + pix->width = mp->width; > + pix->height = mp->height; > + pix->pixelformat = mp->pixelformat; > + pix->field = mp->field; > + pix->colorspace = mp->colorspace; > + pix->xfer_func = mp->xfer_func; > + /* Also copies hsv_enc */ > + pix->ycbcr_enc = mp->ycbcr_enc; > + pix->quantization = mp->quantization; > + pix->sizeimage = ppix->sizeimage; > + pix->bytesperline = ppix->bytesperline; > + pix->flags = mp->flags; > + return ret; > +} > +EXPORT_SYMBOL_GPL(v4l2_fmt_sp2mp_func); > diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h > index 0a41bbecf3d3..e46c1f451f8c 100644 > --- a/include/media/v4l2-common.h > +++ b/include/media/v4l2-common.h > @@ -425,4 +425,41 @@ int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, int pixelformat, > int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, int pixelformat, > int width, int height); > > +/** > + * v4l2_fmtfunc - function pointer for v4l2_fmt_sp2mp() > + * > + * @file: device's descriptor file > + * @priv: private data pointer > + * @f: format that holds a mp pixel format > + * > + * Function type used by v4l2_fmt_sp2mp_func(). Please, see v4l2_fmt_sp2mp_func > + * for more details. > + */ > +typedef int (*v4l2_fmtfunc)(struct file *file, void *priv, > + struct v4l2_format *f); > + > +/** > + * v4l2_fmt_sp2mp - transforms a single-planar format struct into a multi-planar > + * struct > + * > + * @sp_fmt: pointer to the single-planar format struct (in) > + * @mp_fmt: pointer to the multi-planar format struct (out) > + */ > +void v4l2_fmt_sp2mp(const struct v4l2_format *sp_fmt, > + struct v4l2_format *mp_fmt); So this prototype can be dropped here as well. > + > +/** > + * v4l2_fmt_sp2mp_func - handler for single-planar format functions > + * @file: device's descriptor file > + * @priv: private data pointer > + * @f: format that holds a sp pixel format > + * @func: generic mp function > + * > + * Handler to call a generic multi-planar format function using single-planar > + * format. It converts the sp to a mp (using v4l2_fmt_sp2mp), pass the mp struct pass -> passes > + * as argument to v4l2_fmtfunc func, and converts mp back to sp. as argument -> as an argument > + */ > +int v4l2_fmt_sp2mp_func(struct file *file, void *priv, struct v4l2_format *f, > + v4l2_fmtfunc func); > + > #endif /* V4L2_COMMON_H_ */ > Regards, Hans
diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index 530ac8decb25..208f1094b998 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -815,7 +815,7 @@ int vidioc_g_fmt_vid_cap(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); } int vidioc_try_fmt_vid_cap(struct file *file, void *priv, @@ -825,7 +825,7 @@ int vidioc_try_fmt_vid_cap(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); } int vidioc_s_fmt_vid_cap(struct file *file, void *priv, @@ -835,7 +835,7 @@ int vidioc_s_fmt_vid_cap(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); } int vivid_vid_cap_g_selection(struct file *file, void *priv, diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c index 74b83bcc6119..3dd3a05d2e67 100644 --- a/drivers/media/platform/vivid/vivid-vid-common.c +++ b/drivers/media/platform/vivid/vivid-vid-common.c @@ -674,65 +674,6 @@ void vivid_send_source_change(struct vivid_dev *dev, unsigned type) } } -/* - * Conversion function that converts a single-planar format to a - * single-plane multiplanar format. - */ -void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt) -{ - struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp; - struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; - const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix; - bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT; - - memset(mp->reserved, 0, sizeof(mp->reserved)); - mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : - V4L2_CAP_VIDEO_CAPTURE_MPLANE; - mp->width = pix->width; - mp->height = pix->height; - mp->pixelformat = pix->pixelformat; - mp->field = pix->field; - mp->colorspace = pix->colorspace; - mp->xfer_func = pix->xfer_func; - /* Also copies hsv_enc */ - mp->ycbcr_enc = pix->ycbcr_enc; - mp->quantization = pix->quantization; - mp->num_planes = 1; - mp->flags = pix->flags; - ppix->sizeimage = pix->sizeimage; - ppix->bytesperline = pix->bytesperline; - memset(ppix->reserved, 0, sizeof(ppix->reserved)); -} - -int fmt_sp2mp_func(struct file *file, void *priv, - struct v4l2_format *f, fmtfunc func) -{ - struct v4l2_format fmt; - struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp; - struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; - struct v4l2_pix_format *pix = &f->fmt.pix; - int ret; - - /* Converts to a mplane format */ - fmt_sp2mp(f, &fmt); - /* Passes it to the generic mplane format function */ - ret = func(file, priv, &fmt); - /* Copies back the mplane data to the single plane format */ - pix->width = mp->width; - pix->height = mp->height; - pix->pixelformat = mp->pixelformat; - pix->field = mp->field; - pix->colorspace = mp->colorspace; - pix->xfer_func = mp->xfer_func; - /* Also copies hsv_enc */ - pix->ycbcr_enc = mp->ycbcr_enc; - pix->quantization = mp->quantization; - pix->sizeimage = ppix->sizeimage; - pix->bytesperline = ppix->bytesperline; - pix->flags = mp->flags; - return ret; -} - int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r) { unsigned w = r->width; diff --git a/drivers/media/platform/vivid/vivid-vid-common.h b/drivers/media/platform/vivid/vivid-vid-common.h index 29b6c0b40a1b..13adea56baa0 100644 --- a/drivers/media/platform/vivid/vivid-vid-common.h +++ b/drivers/media/platform/vivid/vivid-vid-common.h @@ -8,15 +8,6 @@ #ifndef _VIVID_VID_COMMON_H_ #define _VIVID_VID_COMMON_H_ -typedef int (*fmtfunc)(struct file *file, void *priv, struct v4l2_format *f); - -/* - * Conversion function that converts a single-planar format to a - * single-plane multiplanar format. - */ -void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt); -int fmt_sp2mp_func(struct file *file, void *priv, - struct v4l2_format *f, fmtfunc func); extern const struct v4l2_dv_timings_cap vivid_dv_timings_cap; diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c index 9350ca65dd91..e9d68ccbcc5d 100644 --- a/drivers/media/platform/vivid/vivid-vid-out.c +++ b/drivers/media/platform/vivid/vivid-vid-out.c @@ -612,7 +612,7 @@ int vidioc_g_fmt_vid_out(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out); } int vidioc_try_fmt_vid_out(struct file *file, void *priv, @@ -622,7 +622,7 @@ int vidioc_try_fmt_vid_out(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out); } int vidioc_s_fmt_vid_out(struct file *file, void *priv, @@ -632,7 +632,7 @@ int vidioc_s_fmt_vid_out(struct file *file, void *priv, if (dev->multiplanar) return -ENOTTY; - return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out); + return v4l2_fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out); } int vivid_vid_out_g_selection(struct file *file, void *priv, diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index b5778b2ffa27..0aeec23e0cef 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -631,3 +631,65 @@ int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, int pixelformat, int width, return 0; } EXPORT_SYMBOL_GPL(v4l2_fill_pixfmt); + +/* + * Conversion functions that convert a single-planar format to a + * multi-planar format. + */ +void v4l2_fmt_sp2mp(const struct v4l2_format *sp_fmt, + struct v4l2_format *mp_fmt) +{ + struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp; + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; + const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix; + bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT; + + memset(mp->reserved, 0, sizeof(mp->reserved)); + mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : + V4L2_CAP_VIDEO_CAPTURE_MPLANE; + mp->width = pix->width; + mp->height = pix->height; + mp->pixelformat = pix->pixelformat; + mp->field = pix->field; + mp->colorspace = pix->colorspace; + mp->xfer_func = pix->xfer_func; + /* Also copies hsv_enc */ + mp->ycbcr_enc = pix->ycbcr_enc; + mp->quantization = pix->quantization; + mp->num_planes = 1; + mp->flags = pix->flags; + ppix->sizeimage = pix->sizeimage; + ppix->bytesperline = pix->bytesperline; + memset(ppix->reserved, 0, sizeof(ppix->reserved)); +} +EXPORT_SYMBOL_GPL(v4l2_fmt_sp2mp); + +int v4l2_fmt_sp2mp_func(struct file *file, void *priv, struct v4l2_format *f, + v4l2_fmtfunc func) +{ + struct v4l2_format fmt; + struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp; + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; + struct v4l2_pix_format *pix = &f->fmt.pix; + int ret; + + /* Converts to a mplane format */ + v4l2_fmt_sp2mp(f, &fmt); + /* Passes it to the generic mplane format function */ + ret = func(file, priv, &fmt); + /* Copies back the mplane data to the single plane format */ + pix->width = mp->width; + pix->height = mp->height; + pix->pixelformat = mp->pixelformat; + pix->field = mp->field; + pix->colorspace = mp->colorspace; + pix->xfer_func = mp->xfer_func; + /* Also copies hsv_enc */ + pix->ycbcr_enc = mp->ycbcr_enc; + pix->quantization = mp->quantization; + pix->sizeimage = ppix->sizeimage; + pix->bytesperline = ppix->bytesperline; + pix->flags = mp->flags; + return ret; +} +EXPORT_SYMBOL_GPL(v4l2_fmt_sp2mp_func); diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 0a41bbecf3d3..e46c1f451f8c 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -425,4 +425,41 @@ int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, int pixelformat, int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, int pixelformat, int width, int height); +/** + * v4l2_fmtfunc - function pointer for v4l2_fmt_sp2mp() + * + * @file: device's descriptor file + * @priv: private data pointer + * @f: format that holds a mp pixel format + * + * Function type used by v4l2_fmt_sp2mp_func(). Please, see v4l2_fmt_sp2mp_func + * for more details. + */ +typedef int (*v4l2_fmtfunc)(struct file *file, void *priv, + struct v4l2_format *f); + +/** + * v4l2_fmt_sp2mp - transforms a single-planar format struct into a multi-planar + * struct + * + * @sp_fmt: pointer to the single-planar format struct (in) + * @mp_fmt: pointer to the multi-planar format struct (out) + */ +void v4l2_fmt_sp2mp(const struct v4l2_format *sp_fmt, + struct v4l2_format *mp_fmt); + +/** + * v4l2_fmt_sp2mp_func - handler for single-planar format functions + * @file: device's descriptor file + * @priv: private data pointer + * @f: format that holds a sp pixel format + * @func: generic mp function + * + * Handler to call a generic multi-planar format function using single-planar + * format. It converts the sp to a mp (using v4l2_fmt_sp2mp), pass the mp struct + * as argument to v4l2_fmtfunc func, and converts mp back to sp. + */ +int v4l2_fmt_sp2mp_func(struct file *file, void *priv, struct v4l2_format *f, + v4l2_fmtfunc func); + #endif /* V4L2_COMMON_H_ */