diff options
Diffstat (limited to 'drivers/media/platform/coda/coda-h264.c')
| -rw-r--r-- | drivers/media/platform/coda/coda-h264.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/drivers/media/platform/coda/coda-h264.c b/drivers/media/platform/coda/coda-h264.c deleted file mode 100644 index 0e27412e01f5..000000000000 --- a/drivers/media/platform/coda/coda-h264.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * 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> -#include <linux/videodev2.h> -#include <coda.h> - -static const u8 coda_filler_size[8] = { 0, 7, 14, 13, 12, 11, 10, 9 }; - -static const u8 *coda_find_nal_header(const u8 *buf, const u8 *end) -{ - u32 val = 0xffffffff; - - do { - val = val << 8 | *buf++; - if (buf >= end) - return NULL; - } while (val != 0x00000001); - - return buf; -} - -int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb) -{ - const u8 *buf = vb2_plane_vaddr(vb, 0); - const u8 *end = buf + vb2_get_plane_payload(vb, 0); - - /* Find SPS header */ - do { - buf = coda_find_nal_header(buf, end); - if (!buf) - return -EINVAL; - } while ((*buf++ & 0x1f) != 0x7); - - ctx->params.h264_profile_idc = buf[0]; - ctx->params.h264_level_idc = buf[2]; - - return 0; -} - -int coda_h264_filler_nal(int size, char *p) -{ - if (size < 6) - return -EINVAL; - - p[0] = 0x00; - p[1] = 0x00; - p[2] = 0x00; - p[3] = 0x01; - p[4] = 0x0c; - memset(p + 5, 0xff, size - 6); - /* Add rbsp stop bit and trailing at the end */ - p[size - 1] = 0x80; - - return 0; -} - -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]; - coda_h264_filler_nal(nal_size, p); - - return nal_size; -} - -int coda_h264_profile(int profile_idc) -{ - switch (profile_idc) { - case 66: return V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE; - case 77: return V4L2_MPEG_VIDEO_H264_PROFILE_MAIN; - case 88: return V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED; - case 100: return V4L2_MPEG_VIDEO_H264_PROFILE_HIGH; - default: return -EINVAL; - } -} - -int coda_h264_level(int level_idc) -{ - switch (level_idc) { - case 10: return V4L2_MPEG_VIDEO_H264_LEVEL_1_0; - case 9: return V4L2_MPEG_VIDEO_H264_LEVEL_1B; - case 11: return V4L2_MPEG_VIDEO_H264_LEVEL_1_1; - case 12: return V4L2_MPEG_VIDEO_H264_LEVEL_1_2; - case 13: return V4L2_MPEG_VIDEO_H264_LEVEL_1_3; - case 20: return V4L2_MPEG_VIDEO_H264_LEVEL_2_0; - case 21: return V4L2_MPEG_VIDEO_H264_LEVEL_2_1; - case 22: return V4L2_MPEG_VIDEO_H264_LEVEL_2_2; - case 30: return V4L2_MPEG_VIDEO_H264_LEVEL_3_0; - case 31: return V4L2_MPEG_VIDEO_H264_LEVEL_3_1; - case 32: return V4L2_MPEG_VIDEO_H264_LEVEL_3_2; - case 40: return V4L2_MPEG_VIDEO_H264_LEVEL_4_0; - case 41: return V4L2_MPEG_VIDEO_H264_LEVEL_4_1; - default: return -EINVAL; - } -} |