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Rotate any format by converting into an I420 buffer and then rotating that

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BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/446009

git-svn-id: http://libyuv.googlecode.com/svn/trunk@217 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-03-19 15:52:55 +00:00
parent 91ab139558
commit d4840d4fe9
3 changed files with 44 additions and 3 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 216
Version: 217
License: BSD
License File: LICENSE

2
include/libyuv/version.h
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@ -11,7 +11,7 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 216
#define LIBYUV_VERSION 217
#endif // INCLUDE_LIBYUV_VERSION_H_

43
source/convert.cc
View File

@ -1588,6 +1588,33 @@ int ConvertToI420(const uint8* sample, size_t sample_size,
inv_dst_height = -inv_dst_height;
}
int r = 0;
// For formats that need 2 pass rotation, convert into buffer first
bool need_rot = rotation && format != FOURCC_NV12 &&
format != FOURCC_NV21 && format != FOURCC_I420 &&
format != FOURCC_YV12;
uint8* tmp_y = y;
uint8* tmp_u = u;
uint8* tmp_v = v;
int tmp_y_stride = y_stride;
int tmp_u_stride = u_stride;
int tmp_v_stride = v_stride;
uint8* buf = 0;
int abs_dst_height = (dst_height < 0) ? -dst_height : dst_height;
if (need_rot) {
int y_size = dst_width * abs_dst_height;
int uv_size = ((dst_width + 1) / 2) * ((abs_dst_height + 1) / 2);
buf = new uint8[y_size + uv_size * 2];
if (!buf) {
return 1; // Out of memory runtime error.
}
y = buf;
u = y + y_size;
v = u + uv_size;
y_stride = dst_width;
u_stride = v_stride = ((dst_width + 1) / 2);
}
switch (format) {
// Single plane formats
case FOURCC_YUY2:
@ -1870,8 +1897,22 @@ int ConvertToI420(const uint8* sample, size_t sample_size,
break;
#endif
default:
return -1; // unknown fourcc - return failure code.
r = -1; // unknown fourcc - return failure code.
}
if (need_rot) {
if (!r) {
r = I420Rotate(y, y_stride,
u, u_stride,
v, v_stride,
tmp_y, tmp_y_stride,
tmp_u, tmp_u_stride,
tmp_v, tmp_v_stride,
dst_width, abs_dst_height, rotation);
}
delete buf;
}
return r;
}