[media] media: Add mem2mem deinterlacing driver (8f0755c0) · Commits · 戴 / test

Some video decoders such as tvp5150 provide separate video fields (V4L2_FIELD_SEQ_TB/BT). This driver uses dmaengine to convert this format to V4L2_FIELD_INTERLACED_TB/BT (weaving) or V4L2_FIELD_NONE (line doubling) so that the image can be displayed or processed. Of course there will be combing effect in the image but this can be accepted for some low quality applications. Currently only YUV420 and YUYV formats are supported but it can be extended later. Signed-off-by:

Javier Martin <javier.martin@vista-silicon.com> Signed-off-by:

Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -1233,6 +1233,14 @@ config VIDEO_CODA
		Coda is a range of video codec IPs that supports
		H.264, MPEG-4, and other video formats.

		config VIDEO_MEM2MEM_DEINTERLACE
		tristate "Deinterlace support"
		depends on VIDEO_DEV && VIDEO_V4L2 && DMA_ENGINE
		select VIDEOBUF2_DMA_CONTIG
		select V4L2_MEM2MEM_DEV
		help
		Generic deinterlacing V4L2 driver.

		config VIDEO_SAMSUNG_S5P_G2D
		tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
		depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P

drivers/media/video/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -190,6 +190,8 @@ obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o
		obj-$(CONFIG_VIDEO_MX2_EMMAPRP) += mx2_emmaprp.o
		obj-$(CONFIG_VIDEO_CODA) += coda.o

		obj-$(CONFIG_VIDEO_MEM2MEM_DEINTERLACE) += m2m-deinterlace.o

		obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc/
		obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg/
		obj-$(CONFIG_VIDEO_SAMSUNG_S5P_MFC) += s5p-mfc/

drivers/media/video/m2m-deinterlace.c

0 → 100644

+1119 −0

File added.

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