source/libvpx/y4minput.c - Issue 592203002: libvpx: Pull from upstream

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Side by Side Diff: source/libvpx/y4minput.c

Issue 592203002: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/

Patch Set: Created 6 years, 2 months ago

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1 /*	1 /*

2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.	2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.

3 *	3 *

4 * Use of this source code is governed by a BSD-style license	4 * Use of this source code is governed by a BSD-style license

5 * that can be found in the LICENSE file in the root of the source	5 * that can be found in the LICENSE file in the root of the source

6 * tree. An additional intellectual property rights grant can be found	6 * tree. An additional intellectual property rights grant can be found

7 * in the file PATENTS. All contributing project authors may	7 * in the file PATENTS. All contributing project authors may

8 * be found in the AUTHORS file in the root of the source tree.	8 * be found in the AUTHORS file in the root of the source tree.

9 *	9 *

10 * Based on code from the OggTheora software codec source code,	10 * Based on code from the OggTheora software codec source code,

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1034 _img->x_chroma_shift = _y4m->dst_c_dec_h >> 1;	1034 _img->x_chroma_shift = _y4m->dst_c_dec_h >> 1;

1035 _img->y_chroma_shift = _y4m->dst_c_dec_v >> 1;	1035 _img->y_chroma_shift = _y4m->dst_c_dec_v >> 1;

1036 _img->bps = _y4m->bps;	1036 _img->bps = _y4m->bps;

1037	1037

1038 /Set up the buffer pointers./	1038 /Set up the buffer pointers./

1039 pic_sz = _y4m->pic_w * _y4m->pic_h * bytes_per_sample;	1039 pic_sz = _y4m->pic_w * _y4m->pic_h * bytes_per_sample;

1040 c_w = (_y4m->pic_w + _y4m->dst_c_dec_h - 1) / _y4m->dst_c_dec_h;	1040 c_w = (_y4m->pic_w + _y4m->dst_c_dec_h - 1) / _y4m->dst_c_dec_h;

1041 c_w *= bytes_per_sample;	1041 c_w *= bytes_per_sample;

1042 c_h = (_y4m->pic_h + _y4m->dst_c_dec_v - 1) / _y4m->dst_c_dec_v;	1042 c_h = (_y4m->pic_h + _y4m->dst_c_dec_v - 1) / _y4m->dst_c_dec_v;

1043 c_sz = c_w * c_h;	1043 c_sz = c_w * c_h;

1044 _img->stride[PLANE_Y] = _img->stride[PLANE_ALPHA] =	1044 _img->stride[VPX_PLANE_Y] = _img->stride[VPX_PLANE_ALPHA] =

1045 _y4m->pic_w * bytes_per_sample;	1045 _y4m->pic_w * bytes_per_sample;

1046 _img->stride[PLANE_U] = _img->stride[PLANE_V] = c_w;	1046 _img->stride[VPX_PLANE_U] = _img->stride[VPX_PLANE_V] = c_w;

1047 _img->planes[PLANE_Y] = _y4m->dst_buf;	1047 _img->planes[VPX_PLANE_Y] = _y4m->dst_buf;

1048 _img->planes[PLANE_U] = _y4m->dst_buf + pic_sz;	1048 _img->planes[VPX_PLANE_U] = _y4m->dst_buf + pic_sz;

1049 _img->planes[PLANE_V] = _y4m->dst_buf + pic_sz + c_sz;	1049 _img->planes[VPX_PLANE_V] = _y4m->dst_buf + pic_sz + c_sz;

1050 _img->planes[PLANE_ALPHA] = _y4m->dst_buf + pic_sz + 2 * c_sz;	1050 _img->planes[VPX_PLANE_ALPHA] = _y4m->dst_buf + pic_sz + 2 * c_sz;

1051 return 1;	1051 return 1;

1052 }	1052 }

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