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V4L/DVB (11091): cx18, ivtv: Ensure endianess for linemasks in VBI embedded in MPEG stream

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The sliced VBI payloads that cx18 and ivtv would insert in the MPEG stream
did not have consistent endianess for the linemasks in the payload (a big
endian platform would write them out big endian).  This change ensures the
linemasks are always stored as little-endian in the MPEG stream to ensure
cross platform consistency in parsing the generated MPEG stream.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2009-03-14 20:03:26 -03:00 committed by Mauro Carvalho Chehab
parent baadd7925c
commit 6e1a637202
2 changed files with 4 additions and 0 deletions
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2
drivers/media/video/cx18/cx18-vbi.c
View file

@ -88,6 +88,8 @@ static void copy_vbi_data(struct cx18 *cx, int lines, u32 pts_stamp)
size = 4 + ((43 * line + 3) & ~3);
} else {
memcpy(dst + sd, "itv0", 4);
cpu_to_le32s(&linemask[0]);
cpu_to_le32s(&linemask[1]);
memcpy(dst + sd + 4, &linemask[0], 8);
size = 12 + ((43 * line + 3) & ~3);
}

2
drivers/media/video/ivtv/ivtv-vbi.c
View file

@ -185,6 +185,8 @@ static void copy_vbi_data(struct ivtv *itv, int lines, u32 pts_stamp)
size = 4 + ((43 * line + 3) & ~3);
} else {
memcpy(dst + sd, "itv0", 4);
cpu_to_le32s(&linemask[0]);
cpu_to_le32s(&linemask[1]);
memcpy(dst + sd + 4, &linemask[0], 8);
size = 12 + ((43 * line + 3) & ~3);
}