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yaml
---
r: 357081
b: refs/heads/master
c: 3f3f5c7
h: refs/heads/master
i:
  357079: 68221c2
v: v3
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Javier Martin authored and Mauro Carvalho Chehab committed Dec 21, 2012
1 parent d5f1d36 commit 3f4888f
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Showing 2 changed files with 36 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: bbe2a1d32f40c01ca1a7e7795e20ca06f87ffc9b
refs/heads/master: 3f3f5c7f63dec5d6413075116cd6beee1e888d7b
36 changes: 35 additions & 1 deletion trunk/drivers/media/platform/coda.c
Original file line number Diff line number Diff line change
Expand Up @@ -178,6 +178,9 @@ struct coda_ctx {
int idx;
};

static u8 coda_filler_nal[] = { 0x00, 0x00, 0x00, 0x01, 0x0c,
0xff, 0xff, 0xff, 0xff, 0xff};

static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
{
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
Expand Down Expand Up @@ -944,6 +947,29 @@ static int coda_alloc_framebuffers(struct coda_ctx *ctx, struct coda_q_data *q_d
return 0;
}

static int coda_h264_padding(int size, char *p)
{
int size_align = size & ~0x3;
int filler_size = ARRAY_SIZE(coda_filler_nal);
int nal_size;
int diff;

diff = size - size_align;
if (diff == 0)
return 0;

nal_size = filler_size + 2 - diff;
if (nal_size > filler_size)
nal_size -= 4;

memcpy(p, coda_filler_nal, nal_size);

/* Add rbsp stop bit and trailing at the end */
*(p + nal_size - 1) = 0x80;

return nal_size;
}

static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct coda_ctx *ctx = vb2_get_drv_priv(q);
Expand Down Expand Up @@ -1171,7 +1197,15 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0),
ctx->vpu_header_size[1]);
ctx->vpu_header_size[2] = 0;
/*
* Length of H.264 headers is variable and thus it might not be
* aligned for the coda to append the encoded frame. In that is
* the case a filler NAL must be added to header 2.
*/
ctx->vpu_header_size[2] = coda_h264_padding(
(ctx->vpu_header_size[0] +
ctx->vpu_header_size[1]),
ctx->vpu_header[2]);
break;
case V4L2_PIX_FMT_MPEG4:
/*
Expand Down

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