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avutil/imgutils: remove special case for aligning the palette

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This was suggested by wm4 and stefano.
After this patch using align=1 the size used by various functions would not
contain padding, while the palette would be aligned at align>1

This patch makes it required to use align>=4 if the palette is to be accessed
as uint32

As a side-effect It fixes storing pal8 in nut with odd with&height

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-02-14 15:22:47 +01:00
parent 8352f5c807
commit 0eb4092c1b
2 changed files with 8 additions and 8 deletions
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14
libavutil/imgutils.c
View File

@ -125,7 +125,6 @@ int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int hei
if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
size[0] = (size[0] + 3) & ~3;
data[1] = ptr + size[0]; /* palette is stored here as 256 32 bits words */
return size[0] + 256 * 4;
}
@ -216,8 +215,13 @@ int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
av_free(buf);
return ret;
}
if (desc->flags & AV_PIX_FMT_FLAG_PAL || desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
if (desc->flags & AV_PIX_FMT_FLAG_PAL || desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
avpriv_set_systematic_pal2((uint32_t*)pointers[1], pix_fmt);
if (align < 4) {
av_log(NULL, AV_LOG_ERROR, "Formats with a palette require a minimum alignment of 4\n");
return AVERROR(EINVAL);
}
}
if ((desc->flags & AV_PIX_FMT_FLAG_PAL ||
desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) &&
@ -385,7 +389,6 @@ int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
int i, j, nb_planes = 0, linesize[4];
int size = av_image_get_buffer_size(pix_fmt, width, height, align);
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
uint8_t *orig_dst = dst;
if (size > dst_size || size < 0 || !desc)
return AVERROR(EINVAL);
@ -409,10 +412,7 @@ int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
}
if (desc->flags & AV_PIX_FMT_FLAG_PAL) {
uint32_t *d32 = (uint32_t *)(((size_t)dst + 3) & ~3);
if (dst_size - 1024 < (uint8_t*)d32 - orig_dst)
d32 = (uint32_t *)dst;
uint32_t *d32 = (uint32_t *)dst;
for (i = 0; i<256; i++)
AV_WL32(d32 + i, AV_RN32(src_data[1] + 4*i));

2
libavutil/version.h
View File

@ -65,7 +65,7 @@
#define LIBAVUTIL_VERSION_MAJOR 55
#define LIBAVUTIL_VERSION_MINOR 17
#define LIBAVUTIL_VERSION_MICRO 102
#define LIBAVUTIL_VERSION_MICRO 103
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \