diff options
| author | Philipp Zabel <p.zabel@pengutronix.de> | 2020-03-18 19:35:32 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-04-14 11:47:47 +0200 |
| commit | 50733b5b9102da5b2415e3497aa89588396e4f20 (patch) | |
| tree | baa5bd54b2dfbe4896d3bdc35ea7d032f7184440 /drivers/media/v4l2-core/Makefile | |
| parent | dbe939814cfa0154421ab1643f48b7cdd379d522 (diff) | |
media: add v4l2 JPEG helpers
Add helpers for JPEG header parsing. They allow both scanning for marker
segment positions and later parsing the segments individually, as
required by s5p-jpeg, as well as parsing all headers in one go, as
required by coda-vpu. The frame header is always parsed, as basically
all decoders are interested in width, height, and number of components.
For convenience, the JPEG chroma subsampling factors are decoded into a
v4l2_jpeg_chroma_subsampling enum.
Only baseline and extended sequential DCT encoded JPEGs with 8-bit or
12-bit precision with up to four components are supported.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/v4l2-core/Makefile')
| -rw-r--r-- | drivers/media/v4l2-core/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile index 786bd1ec4d1b..144564656d22 100644 --- a/drivers/media/v4l2-core/Makefile +++ b/drivers/media/v4l2-core/Makefile @@ -24,6 +24,8 @@ obj-$(CONFIG_V4L2_MEM2MEM_DEV) += v4l2-mem2mem.o obj-$(CONFIG_V4L2_FLASH_LED_CLASS) += v4l2-flash-led-class.o +obj-$(CONFIG_V4L2_JPEG_HELPER) += v4l2-jpeg.o + obj-$(CONFIG_VIDEOBUF_GEN) += videobuf-core.o obj-$(CONFIG_VIDEOBUF_DMA_SG) += videobuf-dma-sg.o obj-$(CONFIG_VIDEOBUF_DMA_CONTIG) += videobuf-dma-contig.o |