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Commit 3ad287e4 authored by E V Ravi's avatar E V Ravi
Browse files

msm: v4l2loopback: to create V4L2 loopback devices 



This module allows to create "virtual video devices".
Normal (v4l2) applications will read these devices as
if they were ordinary video devices.

Signed-off-by: default avatarE V Ravi <evenka@codeaurora.org>
Git-commit:541e3bc7aaf46dc9a21f92c7f527397fce03dfd8
Git-repo: https://github.com/umlaeute/v4l2loopback
Revision: v0.12.1
Change-Id: I294a02ee282404ae84e0d7dc62373a172b4f0c23
parent 12719925

drivers/media/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ endif 


obj-$(CONFIG_VIDEO_DEV) += v4l2-core/

obj-$(CONFIG_DVB_CORE)  += dvb-core/

obj-$(CONFIG_VIDEO_DEV) += v4l2loopback-master/



# There are both core and drivers at RC subtree - merge before drivers

obj-y += rc/

drivers/media/v4l2-core/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -107,3 +107,10 @@ config VIDEOBUF2_DMA_SG 
config VIDEOBUF2_DVB

	tristate

	select VIDEOBUF2_CORE



config  V4L2_LOOPBACK

	tristate "v4l2loopback driver"

	---help---

	Enable v4l2loopback support, it allows to create

	"virtual video devices". Normal (v4l2) applications will

	read these devices as if they were ordinary video devices.

drivers/media/v4l2loopback-master/Makefile

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#

## Makefile for the V4L2 loopback

#



obj-$(CONFIG_V4L2_LOOPBACK) +=  v4l2loopback.o

drivers/media/v4l2loopback-master/v4l2loopback.c

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+2630 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/media/v4l2loopback-master/v4l2loopback_formats.h

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+419 −0
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/* here come the packed formats */

{

	.name = "32 bpp RGB, le",

	.fourcc = V4L2_PIX_FMT_BGR32,

	.depth = 32,

	.flags = 0,

},

{

	.name = "32 bpp RGB, be",

	.fourcc = V4L2_PIX_FMT_RGB32,

	.depth = 32,

	.flags = 0,

},

{

	.name = "24 bpp RGB, le",

	.fourcc = V4L2_PIX_FMT_BGR24,

	.depth = 24,

	.flags = 0,

},

{

	.name = "24 bpp RGB, be",

	.fourcc = V4L2_PIX_FMT_RGB24,

	.depth = 24,

	.flags = 0,

},

#ifdef V4L2_PIX_FMT_RGB332

{

	.name = "8 bpp RGB-3-3-2",

	.fourcc = V4L2_PIX_FMT_RGB332,

	.depth = 8,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB332 */

#ifdef V4L2_PIX_FMT_RGB444

{

	.name = "16 bpp RGB (xxxxrrrr ggggbbbb)",

	.fourcc = V4L2_PIX_FMT_RGB444,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB444 */

#ifdef V4L2_PIX_FMT_RGB555

{

	.name = "16 bpp RGB-5-5-5",

	.fourcc = V4L2_PIX_FMT_RGB555,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB555 */

#ifdef V4L2_PIX_FMT_RGB565

{

	.name = "16 bpp  RGB-5-6-5",

	.fourcc = V4L2_PIX_FMT_RGB565,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB565 */

#ifdef V4L2_PIX_FMT_RGB555X

{

	.name = "16 bpp RGB-5-5-5 BE",

	.fourcc = V4L2_PIX_FMT_RGB555X,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB555X */

#ifdef V4L2_PIX_FMT_RGB565X

{

	.name = "16 bpp RGB-5-6-5 BE",

	.fourcc = V4L2_PIX_FMT_RGB565X,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_RGB565X */

#ifdef V4L2_PIX_FMT_BGR666

{

	.name = "18 bpp BGR-6-6-6",

	.fourcc = V4L2_PIX_FMT_BGR666,

	.depth = 18,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_BGR666 */

{

	.name = "4:2:2, packed, YUYV",

	.fourcc = V4L2_PIX_FMT_YUYV,

	.depth = 16,

	.flags = 0,

},

{

	.name = "4:2:2, packed, UYVY",

	.fourcc = V4L2_PIX_FMT_UYVY,

	.depth = 16,

	.flags = 0,

},

#ifdef V4L2_PIX_FMT_YVYU

{

	.name = "4:2:2, packed YVYU",

	.fourcc = V4L2_PIX_FMT_YVYU,

	.depth = 16,

	.flags = 0,

},

#endif

#ifdef V4L2_PIX_FMT_VYUY

{

	.name = "4:2:2, packed VYUY",

	.fourcc = V4L2_PIX_FMT_VYUY,

	.depth = 16,

	.flags = 0,

},

#endif

{

	.name = "4:2:2, packed YYUV",

	.fourcc = V4L2_PIX_FMT_YYUV,

	.depth = 16,

	.flags = 0,

},

{

	.name = "YUV-8-8-8-8",

	.fourcc = V4L2_PIX_FMT_YUV32,

	.depth = 32,

	.flags = 0,

},

{

	.name = "8 bpp, Greyscale",

	.fourcc = V4L2_PIX_FMT_GREY,

	.depth = 8,

	.flags = 0,

},

#ifdef V4L2_PIX_FMT_Y4

{

	.name = "4 bpp Greyscale",

	.fourcc = V4L2_PIX_FMT_Y4,

	.depth = 4,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_Y4 */

#ifdef V4L2_PIX_FMT_Y6

{

	.name = "6 bpp Greyscale",

	.fourcc = V4L2_PIX_FMT_Y6,

	.depth = 6,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_Y6 */

#ifdef V4L2_PIX_FMT_Y10

{

	.name = "10 bpp Greyscale",

	.fourcc = V4L2_PIX_FMT_Y10,

	.depth = 10,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_Y10 */

#ifdef V4L2_PIX_FMT_Y12

{

	.name = "12 bpp Greyscale",

	.fourcc = V4L2_PIX_FMT_Y12,

	.depth = 12,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_Y12 */

{

	.name = "16 bpp, Greyscale",

	.fourcc = V4L2_PIX_FMT_Y16,

	.depth = 16,

	.flags = 0,

},

#ifdef V4L2_PIX_FMT_YUV444

{

	.name = "16 bpp xxxxyyyy uuuuvvvv",

	.fourcc = V4L2_PIX_FMT_YUV444,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_YUV444 */

#ifdef V4L2_PIX_FMT_YUV555

{

	.name = "16 bpp YUV-5-5-5",

	.fourcc = V4L2_PIX_FMT_YUV555,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_YUV555 */

#ifdef V4L2_PIX_FMT_YUV565

{

	.name = "16 bpp YUV-5-6-5",

	.fourcc = V4L2_PIX_FMT_YUV565,

	.depth = 16,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_YUV565 */



	/* bayer formats */

#ifdef V4L2_PIX_FMT_SRGGB8

{

	.name = "Bayer RGGB 8bit",

	.fourcc = V4L2_PIX_FMT_SRGGB8,

	.depth = 8,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_SRGGB8 */

#ifdef V4L2_PIX_FMT_SGRBG8

{

	.name = "Bayer GRBG 8bit",

	.fourcc = V4L2_PIX_FMT_SGRBG8,

	.depth = 8,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_SGRBG8 */

#ifdef V4L2_PIX_FMT_SGBRG8

{

	.name = "Bayer GBRG 8bit",

	.fourcc = V4L2_PIX_FMT_SGBRG8,

	.depth = 8,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_SGBRG8 */

#ifdef V4L2_PIX_FMT_SBGGR8

{

	.name = "Bayer BA81 8bit",

	.fourcc = V4L2_PIX_FMT_SBGGR8,

	.depth = 8,

	.flags = 0,

},

#endif /* V4L2_PIX_FMT_SBGGR8 */







	/* here come the planar formats */

{

	.name = "4:1:0, planar, Y-Cr-Cb",

	.fourcc = V4L2_PIX_FMT_YVU410,

	.depth = 9,

	.flags = FORMAT_FLAGS_PLANAR,

},

{

	.name = "4:2:0, planar, Y-Cr-Cb",

	.fourcc = V4L2_PIX_FMT_YVU420,

	.depth = 12,

	.flags = FORMAT_FLAGS_PLANAR,

},

{

	.name = "4:1:0, planar, Y-Cb-Cr",

	.fourcc = V4L2_PIX_FMT_YUV410,

	.depth = 9,

	.flags = FORMAT_FLAGS_PLANAR,

},

{

	.name = "4:2:0, planar, Y-Cb-Cr",

	.fourcc = V4L2_PIX_FMT_YUV420,

	.depth = 12,

	.flags = FORMAT_FLAGS_PLANAR,

},

#ifdef V4L2_PIX_FMT_YUV422P

{

	.name = "16 bpp YVU422 planar",

	.fourcc = V4L2_PIX_FMT_YUV422P,

	.depth = 16,

	.flags = FORMAT_FLAGS_PLANAR,

},

#endif /* V4L2_PIX_FMT_YUV422P */

#ifdef V4L2_PIX_FMT_YUV411P

{

	.name = "16 bpp YVU411 planar",

	.fourcc = V4L2_PIX_FMT_YUV411P,

	.depth = 16,

	.flags = FORMAT_FLAGS_PLANAR,

},

#endif /* V4L2_PIX_FMT_YUV411P */

#ifdef V4L2_PIX_FMT_Y41P

{

	.name = "12 bpp YUV 4:1:1",

	.fourcc = V4L2_PIX_FMT_Y41P,

	.depth = 12,

	.flags = FORMAT_FLAGS_PLANAR,

},

#endif /* V4L2_PIX_FMT_Y41P */

#ifdef V4L2_PIX_FMT_NV12

{

	.name = "12 bpp Y/CbCr 4:2:0 ",

	.fourcc = V4L2_PIX_FMT_NV12,

	.depth = 12,

	.flags = FORMAT_FLAGS_PLANAR,

},

#endif /* V4L2_PIX_FMT_NV12 */



	/* here come the compressed formats */



#ifdef V4L2_PIX_FMT_MJPEG

{

	.name = "Motion-JPEG",

	.fourcc = V4L2_PIX_FMT_MJPEG,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_MJPEG */

#ifdef V4L2_PIX_FMT_JPEG

{

	.name = "JFIF JPEG",

	.fourcc = V4L2_PIX_FMT_JPEG,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_JPEG */

#ifdef V4L2_PIX_FMT_DV

{

	.name = "DV1394",

	.fourcc = V4L2_PIX_FMT_DV,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_DV */

#ifdef V4L2_PIX_FMT_MPEG

{

	.name = "MPEG-1/2/4 Multiplexed",

	.fourcc = V4L2_PIX_FMT_MPEG,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_MPEG */

#ifdef V4L2_PIX_FMT_H264

{

	.name = "H264 with start codes",

	.fourcc = V4L2_PIX_FMT_H264,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_H264 */

#ifdef V4L2_PIX_FMT_H264_NO_SC

{

	.name = "H264 without start codes",

	.fourcc = V4L2_PIX_FMT_H264_NO_SC,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_H264_NO_SC */

#ifdef V4L2_PIX_FMT_H264_MVC

{

	.name = "H264 MVC",

	.fourcc = V4L2_PIX_FMT_H264_MVC,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_H264_MVC */

#ifdef V4L2_PIX_FMT_H263

{

	.name = "H263",

	.fourcc = V4L2_PIX_FMT_H263,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_H263 */

#ifdef V4L2_PIX_FMT_MPEG1

{

	.name = "MPEG-1 ES",

	.fourcc = V4L2_PIX_FMT_MPEG1,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_MPEG1 */

#ifdef V4L2_PIX_FMT_MPEG2

{

	.name = "MPEG-2 ES",

	.fourcc = V4L2_PIX_FMT_MPEG2,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_MPEG2 */

#ifdef V4L2_PIX_FMT_MPEG4

{

	.name = "MPEG-4 part 2 ES",

	.fourcc = V4L2_PIX_FMT_MPEG4,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_MPEG4 */

#ifdef V4L2_PIX_FMT_XVID

{

	.name = "Xvid",

	.fourcc = V4L2_PIX_FMT_XVID,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_XVID */

#ifdef V4L2_PIX_FMT_VC1_ANNEX_G

{

	.name = "SMPTE 421M Annex G compliant stream",

	.fourcc = V4L2_PIX_FMT_VC1_ANNEX_G,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_VC1_ANNEX_G */

#ifdef V4L2_PIX_FMT_VC1_ANNEX_L

{

	.name = "SMPTE 421M Annex L compliant stream",

	.fourcc = V4L2_PIX_FMT_VC1_ANNEX_L,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_VC1_ANNEX_L */

#ifdef V4L2_PIX_FMT_VP8

{

	.name = "VP8",

	.fourcc = V4L2_PIX_FMT_VP8,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

#endif /* V4L2_PIX_FMT_VP8 */

{

	.name = "VP9",

	.fourcc = V4L2_PIX_FMT_VP9,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},

{

	.name = "HEVC",

	.fourcc = V4L2_PIX_FMT_HEVC,

	.depth = 32,

	.flags = FORMAT_FLAGS_COMPRESSED,

},