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| author | Jean-François Moine <moinejf@free.fr> | 2011-01-24 16:31:58 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-01-31 12:05:48 -0200 |
| commit | a5ecdfb3dab0ed55ca72fb5ad73657baf2af2fa0 (patch) | |
| tree | 190c72a0abbf2b33ed51d601fdf983764c2b4e0f /drivers/media/video/gspca/zc3xx.c | |
| parent | 3d244065cb8764e23fe86225fb985e5deb3b26d5 (diff) | |
| download | kernel_samsung_smdk4412-a5ecdfb3dab0ed55ca72fb5ad73657baf2af2fa0.zip kernel_samsung_smdk4412-a5ecdfb3dab0ed55ca72fb5ad73657baf2af2fa0.tar.gz kernel_samsung_smdk4412-a5ecdfb3dab0ed55ca72fb5ad73657baf2af2fa0.tar.bz2 | |
[media] gspca - zc3xx: Discard the partial frames
In some cases, some frames may not end with the JPEG end of frame.
Being not complete, they are now discarded.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/zc3xx.c')
| -rw-r--r-- | drivers/media/video/gspca/zc3xx.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c index cf65fb3..47236a5 100644 --- a/drivers/media/video/gspca/zc3xx.c +++ b/drivers/media/video/gspca/zc3xx.c @@ -6821,9 +6821,17 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; - if (data[0] == 0xff && data[1] == 0xd8) { /* start of frame */ + /* check the JPEG end of frame */ + if (len >= 3 + && data[len - 3] == 0xff && data[len - 2] == 0xd9) { +/*fixme: what does the last byte mean?*/ gspca_frame_add(gspca_dev, LAST_PACKET, - NULL, 0); + data, len - 1); + return; + } + + /* check the JPEG start of a frame */ + if (data[0] == 0xff && data[1] == 0xd8) { /* put the JPEG header in the new frame */ gspca_frame_add(gspca_dev, FIRST_PACKET, sd->jpeg_hdr, JPEG_HDR_SZ); |