diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-common.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index 96c1b31de9e3..9b65529dfaf6 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -383,6 +383,36 @@ v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes, } EXPORT_SYMBOL_GPL(v4l2_find_nearest_format); +const void * +__v4l2_find_nearest_size(const void *array, size_t array_size, + size_t entry_size, size_t width_offset, + size_t height_offset, s32 width, s32 height) +{ + u32 error, min_error = U32_MAX; + const void *best = NULL; + unsigned int i; + + if (!array) + return NULL; + + for (i = 0; i < array_size; i++, array += entry_size) { + const u32 *entry_width = array + width_offset; + const u32 *entry_height = array + height_offset; + + error = abs(*entry_width - width) + abs(*entry_height - height); + if (error > min_error) + continue; + + min_error = error; + best = array; + if (!error) + break; + } + + return best; +} +EXPORT_SYMBOL_GPL(__v4l2_find_nearest_size); + void v4l2_get_timestamp(struct timeval *tv) { struct timespec ts; |