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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-10-09 21:00:54 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-10-09 21:00:54 +0400 |
| commit | a66d05d504a24894a8fdf11e4569752f313e5764 (patch) | |
| tree | 2bb40c1f6c301b231d7aeaad08c190aa5a82ba1f /drivers/media/platform/coda/coda-h264.c | |
| parent | bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 (diff) | |
| parent | 5563caaf8b8cd22e35997d5d74cb3609df86b223 (diff) | |
| download | linux-a66d05d504a24894a8fdf11e4569752f313e5764.tar.xz | |
Merge branch 'patchwork' into v4l_for_linus
* patchwork: (544 commits)
[media] ir-hix5hd2: fix build on c6x arch
[media] pt3: fix DTV FE I2C driver load error paths
Revert "[media] media: em28xx - remove reset_resume interface"
[media] exynos4-is: fix some warnings when compiling on arm64
[media] usb drivers: use %zu instead of %zd
[media] pci drivers: use %zu instead of %zd
[media] dvb-frontends: use %zu instead of %zd
[media] s5p-mfc: Fix several printk warnings
[media] s5p_mfc_opr: Fix warnings
[media] ti-vpe: Fix typecast
[media] s3c-camif: fix dma_addr_t printks
[media] s5p_mfc_opr_v6: get rid of warnings when compiled with 64 bits
[media] s5p_mfc_opr_v5: Fix lots of warnings on x86_64
[media] em28xx: Fix identation
[media] drxd: remove a dead code
[media] saa7146: remove return after BUG()
[media] cx88: remove return after BUG()
[media] cx88: fix cards table CodingStyle
[media] radio-sf16fmr2: declare some structs as static
[media] radio-sf16fmi: declare pnp_attached as static
...
Conflicts:
Documentation/DocBook/media/v4l/compat.xml
Diffstat (limited to 'drivers/media/platform/coda/coda-h264.c')
| -rw-r--r-- | drivers/media/platform/coda/coda-h264.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-h264.c b/drivers/media/platform/coda/coda-h264.c new file mode 100644 index 000000000000..456773af1f1d --- /dev/null +++ b/drivers/media/platform/coda/coda-h264.c @@ -0,0 +1,37 @@ +/* + * Coda multi-standard codec IP - H.264 helper functions + * + * Copyright (C) 2012 Vista Silicon S.L. + * Javier Martin, <javier.martin@vista-silicon.com> + * Xavier Duret + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/string.h> + +static const u8 coda_filler_nal[14] = { 0x00, 0x00, 0x00, 0x01, 0x0c, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80 }; +static const u8 coda_filler_size[8] = { 0, 7, 14, 13, 12, 11, 10, 9 }; + +int coda_h264_padding(int size, char *p) +{ + int nal_size; + int diff; + + diff = size - (size & ~0x7); + if (diff == 0) + return 0; + + nal_size = coda_filler_size[diff]; + memcpy(p, coda_filler_nal, nal_size); + + /* Add rbsp stop bit and trailing at the end */ + *(p + nal_size - 1) = 0x80; + + return nal_size; +} |