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Side by Side Diff: include/libyuv/planar_functions.h

Issue 2371293002: Add low level support for 12 bit 420, 422 and 444 YUV video frame conversion. (Closed)
Patch Set: cast to uint16 Created 4 years, 2 months ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv 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 10
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274 // the 3, g to the 3, r to the 3 and a to the 3. The values are summed and 274 // the 3, g to the 3, r to the 3 and a to the 3. The values are summed and
275 // result clamped to 0 to 255. 275 // result clamped to 0 to 255.
276 // A polynomial approximation can be dirived using software such as 'R'. 276 // A polynomial approximation can be dirived using software such as 'R'.
277 277
278 LIBYUV_API 278 LIBYUV_API
279 int ARGBPolynomial(const uint8* src_argb, int src_stride_argb, 279 int ARGBPolynomial(const uint8* src_argb, int src_stride_argb,
280 uint8* dst_argb, int dst_stride_argb, 280 uint8* dst_argb, int dst_stride_argb,
281 const float* poly, 281 const float* poly,
282 int width, int height); 282 int width, int height);
283 283
284 // Convert plane of 16 bit shorts to half floats.
285 // Source values are multiplied by scale before storing as half float.
286 LIBYUV_API
287 int HalfFloatPlane(const uint16* src_y, int src_stride_y,
288 uint16* dst_y, int dst_stride_y,
289 float scale,
290 int width, int height);
291
284 // Quantize a rectangle of ARGB. Alpha unaffected. 292 // Quantize a rectangle of ARGB. Alpha unaffected.
285 // scale is a 16 bit fractional fixed point scaler between 0 and 65535. 293 // scale is a 16 bit fractional fixed point scaler between 0 and 65535.
286 // interval_size should be a value between 1 and 255. 294 // interval_size should be a value between 1 and 255.
287 // interval_offset should be a value between 0 and 255. 295 // interval_offset should be a value between 0 and 255.
288 LIBYUV_API 296 LIBYUV_API
289 int ARGBQuantize(uint8* dst_argb, int dst_stride_argb, 297 int ARGBQuantize(uint8* dst_argb, int dst_stride_argb,
290 int scale, int interval_size, int interval_offset, 298 int scale, int interval_size, int interval_offset,
291 int x, int y, int width, int height); 299 int x, int y, int width, int height);
292 300
293 // Copy ARGB to ARGB. 301 // Copy ARGB to ARGB.
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512 int ARGBSobelXY(const uint8* src_argb, int src_stride_argb, 520 int ARGBSobelXY(const uint8* src_argb, int src_stride_argb,
513 uint8* dst_argb, int dst_stride_argb, 521 uint8* dst_argb, int dst_stride_argb,
514 int width, int height); 522 int width, int height);
515 523
516 #ifdef __cplusplus 524 #ifdef __cplusplus
517 } // extern "C" 525 } // extern "C"
518 } // namespace libyuv 526 } // namespace libyuv
519 #endif 527 #endif
520 528
521 #endif // INCLUDE_LIBYUV_PLANAR_FUNCTIONS_H_ 529 #endif // INCLUDE_LIBYUV_PLANAR_FUNCTIONS_H_
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