| /* |
| * Copyright 2011 The LibYuv Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "libyuv/convert_argb.h" |
| |
| #include "libyuv/cpu_id.h" |
| #ifdef HAVE_JPEG |
| #include "libyuv/mjpeg_decoder.h" |
| #endif |
| #include "libyuv/rotate_argb.h" |
| #include "libyuv/row.h" |
| #include "libyuv/video_common.h" |
| |
| #ifdef __cplusplus |
| namespace libyuv { |
| extern "C" { |
| #endif |
| |
| // Convert camera sample to I420 with cropping, rotation and vertical flip. |
| // src_width is used for source stride computation |
| // src_height is used to compute location of planes, and indicate inversion |
| // sample_size is measured in bytes and is the size of the frame. |
| // With MJPEG it is the compressed size of the frame. |
| LIBYUV_API |
| int ConvertToARGB(const uint8* sample, size_t sample_size, |
| uint8* crop_argb, int argb_stride, |
| int crop_x, int crop_y, |
| int src_width, int src_height, |
| int crop_width, int crop_height, |
| enum RotationMode rotation, |
| uint32 fourcc) { |
| uint32 format = CanonicalFourCC(fourcc); |
| int aligned_src_width = (src_width + 1) & ~1; |
| const uint8* src; |
| const uint8* src_uv; |
| int abs_src_height = (src_height < 0) ? -src_height : src_height; |
| int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height; |
| int r = 0; |
| |
| // One pass rotation is available for some formats. For the rest, convert |
| // to I420 (with optional vertical flipping) into a temporary I420 buffer, |
| // and then rotate the I420 to the final destination buffer. |
| // For in-place conversion, if destination crop_argb is same as source sample, |
| // also enable temporary buffer. |
| LIBYUV_BOOL need_buf = (rotation && format != FOURCC_ARGB) || |
| crop_argb == sample; |
| uint8* tmp_argb = crop_argb; |
| int tmp_argb_stride = argb_stride; |
| uint8* rotate_buffer = NULL; |
| int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height; |
| |
| if (crop_argb == NULL || sample == NULL || |
| src_width <= 0 || crop_width <= 0 || |
| src_height == 0 || crop_height == 0) { |
| return -1; |
| } |
| if (src_height < 0) { |
| inv_crop_height = -inv_crop_height; |
| } |
| |
| if (need_buf) { |
| int argb_size = crop_width * abs_crop_height * 4; |
| rotate_buffer = (uint8*)malloc(argb_size); |
| if (!rotate_buffer) { |
| return 1; // Out of memory runtime error. |
| } |
| crop_argb = rotate_buffer; |
| argb_stride = crop_width; |
| } |
| |
| switch (format) { |
| // Single plane formats |
| case FOURCC_YUY2: |
| src = sample + (aligned_src_width * crop_y + crop_x) * 2; |
| r = YUY2ToARGB(src, aligned_src_width * 2, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_UYVY: |
| src = sample + (aligned_src_width * crop_y + crop_x) * 2; |
| r = UYVYToARGB(src, aligned_src_width * 2, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_24BG: |
| src = sample + (src_width * crop_y + crop_x) * 3; |
| r = RGB24ToARGB(src, src_width * 3, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_RAW: |
| src = sample + (src_width * crop_y + crop_x) * 3; |
| r = RAWToARGB(src, src_width * 3, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_ARGB: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = ARGBToARGB(src, src_width * 4, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_BGRA: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = BGRAToARGB(src, src_width * 4, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_ABGR: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = ABGRToARGB(src, src_width * 4, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_RGBA: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = RGBAToARGB(src, src_width * 4, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_RGBP: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = RGB565ToARGB(src, src_width * 2, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_RGBO: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = ARGB1555ToARGB(src, src_width * 2, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_R444: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = ARGB4444ToARGB(src, src_width * 2, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_I400: |
| src = sample + src_width * crop_y + crop_x; |
| r = I400ToARGB(src, src_width, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| |
| // Biplanar formats |
| case FOURCC_NV12: |
| src = sample + (src_width * crop_y + crop_x); |
| src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x; |
| r = NV12ToARGB(src, src_width, |
| src_uv, aligned_src_width, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_NV21: |
| src = sample + (src_width * crop_y + crop_x); |
| src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x; |
| // Call NV12 but with u and v parameters swapped. |
| r = NV21ToARGB(src, src_width, |
| src_uv, aligned_src_width, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| case FOURCC_M420: |
| src = sample + (src_width * crop_y) * 12 / 8 + crop_x; |
| r = M420ToARGB(src, src_width, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| // Triplanar formats |
| case FOURCC_I420: |
| case FOURCC_YU12: |
| case FOURCC_YV12: { |
| const uint8* src_y = sample + (src_width * crop_y + crop_x); |
| const uint8* src_u; |
| const uint8* src_v; |
| int halfwidth = (src_width + 1) / 2; |
| int halfheight = (abs_src_height + 1) / 2; |
| if (format == FOURCC_YV12) { |
| src_v = sample + src_width * abs_src_height + |
| (halfwidth * crop_y + crop_x) / 2; |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * (halfheight + crop_y / 2) + crop_x / 2; |
| } else { |
| src_u = sample + src_width * abs_src_height + |
| (halfwidth * crop_y + crop_x) / 2; |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * (halfheight + crop_y / 2) + crop_x / 2; |
| } |
| r = I420ToARGB(src_y, src_width, |
| src_u, halfwidth, |
| src_v, halfwidth, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| } |
| |
| case FOURCC_J420: { |
| const uint8* src_y = sample + (src_width * crop_y + crop_x); |
| const uint8* src_u; |
| const uint8* src_v; |
| int halfwidth = (src_width + 1) / 2; |
| int halfheight = (abs_src_height + 1) / 2; |
| src_u = sample + src_width * abs_src_height + |
| (halfwidth * crop_y + crop_x) / 2; |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * (halfheight + crop_y / 2) + crop_x / 2; |
| r = J420ToARGB(src_y, src_width, |
| src_u, halfwidth, |
| src_v, halfwidth, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| } |
| |
| case FOURCC_I422: |
| case FOURCC_YV16: { |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u; |
| const uint8* src_v; |
| int halfwidth = (src_width + 1) / 2; |
| if (format == FOURCC_YV16) { |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * crop_y + crop_x / 2; |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * (abs_src_height + crop_y) + crop_x / 2; |
| } else { |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * crop_y + crop_x / 2; |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * (abs_src_height + crop_y) + crop_x / 2; |
| } |
| r = I422ToARGB(src_y, src_width, |
| src_u, halfwidth, |
| src_v, halfwidth, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| } |
| case FOURCC_I444: |
| case FOURCC_YV24: { |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u; |
| const uint8* src_v; |
| if (format == FOURCC_YV24) { |
| src_v = sample + src_width * (abs_src_height + crop_y) + crop_x; |
| src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x; |
| } else { |
| src_u = sample + src_width * (abs_src_height + crop_y) + crop_x; |
| src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x; |
| } |
| r = I444ToARGB(src_y, src_width, |
| src_u, src_width, |
| src_v, src_width, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| } |
| case FOURCC_I411: { |
| int quarterwidth = (src_width + 3) / 4; |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u = sample + src_width * abs_src_height + |
| quarterwidth * crop_y + crop_x / 4; |
| const uint8* src_v = sample + src_width * abs_src_height + |
| quarterwidth * (abs_src_height + crop_y) + crop_x / 4; |
| r = I411ToARGB(src_y, src_width, |
| src_u, quarterwidth, |
| src_v, quarterwidth, |
| crop_argb, argb_stride, |
| crop_width, inv_crop_height); |
| break; |
| } |
| #ifdef HAVE_JPEG |
| case FOURCC_MJPG: |
| r = MJPGToARGB(sample, sample_size, |
| crop_argb, argb_stride, |
| src_width, abs_src_height, crop_width, inv_crop_height); |
| break; |
| #endif |
| default: |
| r = -1; // unknown fourcc - return failure code. |
| } |
| |
| if (need_buf) { |
| if (!r) { |
| r = ARGBRotate(crop_argb, argb_stride, |
| tmp_argb, tmp_argb_stride, |
| crop_width, abs_crop_height, rotation); |
| } |
| free(rotate_buffer); |
| } |
| |
| return r; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |
