إسأل Career Counselor الآن
Fadi Ibrahim
Career Counselor
الأسئلة المجابة 76124 | نسبة الرضا 97.5%
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--- qcom.h+++ qcom.h@@ -1,3 +1,14 @@-#include...
--- qcom.h+++ qcom.h@@ -1,3 +1,14 @@-#include +#ifndef _QCOM_H_+#define _QCOM_H_ -void qcom_convert(const uint8_t *src, picture_t *pic);+#ifdef __cplusplus+extern "C" {+#endif++void qcom_convert(const uint8_t *src, uint8_t* dst, size_t w, size_t h);++#ifdef __cplusplus+}+#endif++#endif--- qcom.c+++ qcom.c@@ -20,18 +20,10 @@ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -#ifdef HAVE_CONFIG_H-# include "config.h"-#endif--#include --#include #include -+#include #include "qcom.h" - /* * The format is called QOMX_COLOR_FormatYUV420PackedSemiPlanar64x32Tile2m8ka. * First wtf: why call it YUV420? It is NV12 (interleaved U&V).@@ -42,8 +34,7 @@ #define TILE_SIZE (TILE_WIDTH * TILE_HEIGHT) /* get frame tile coordinate. XXX: nothing to be understood here, don't try. */-static size_t tile_pos(size_t x, size_t y, size_t w, size_t h)-{+static size_t tile_pos(size_t x, size_t y, size_t w, size_t h) { size_t flim = x + (y & ~1) * w; if (y & 1) {@@ -55,11 +46,10 @@ return flim; } -void qcom_convert(const uint8_t *src, picture_t *pic)-{- size_t width = pic->format.i_width;- size_t pitch = pic->p[0].i_pitch;- size_t height = pic->format.i_height;+void qcom_convert(const uint8_t *src, uint8_t* dst, size_t w, size_t h) {+ size_t width = w; //pic->format.i_width;+ size_t pitch = w; //pic->p[0].i_pitch;+ size_t height = h; //pic->format.i_height; const size_t tile_w = (width - 1) / TILE_WIDTH + 1; const size_t tile_w_align = (tile_w + 1) & ~1;@@ -70,21 +60,23 @@ size_t luma_size = tile_w_align * tile_h_luma * TILE_SIZE; #define TILE_GROUP_SIZE (4 * TILE_SIZE)- if((luma_size % TILE_GROUP_SIZE) != 0)+ if ((luma_size % TILE_GROUP_SIZE) != 0) luma_size = (((luma_size - 1) / TILE_GROUP_SIZE) + 1) * TILE_GROUP_SIZE; - for(size_t y = 0; y < tile_h_luma; y++) {+ for (size_t y = 0; y < tile_h_luma; y++) { size_t row_width = width;- for(size_t x = 0; x < tile_w; x++) {+ for (size_t x = 0; x < tile_w; x++) { /* luma source pointer for this tile */- const uint8_t *src_luma = src- + tile_pos(x, y,tile_w_align, tile_h_luma) * TILE_SIZE;+ const uint8_t *src_luma = src+ + tile_pos(x, y, tile_w_align, tile_h_luma) * TILE_SIZE; /* chroma source pointer for this tile */ const uint8_t *src_chroma = src + luma_size- + tile_pos(x, y/2, tile_w_align, tile_h_chroma) * TILE_SIZE;+ + tile_pos(x, y / 2, tile_w_align, tile_h_chroma)+ * TILE_SIZE;+ if (y & 1)- src_chroma += TILE_SIZE/2;+ src_chroma += TILE_SIZE / 2; /* account for right columns */ size_t tile_width = row_width;@@ -101,19 +93,21 @@ /* dest chroma memory index for this tile */ /* XXX: remove divisions */- size_t chroma_idx = (luma_idx / pitch) * pitch/2 + (luma_idx % pitch);+ size_t chroma_idx = (luma_idx / pitch) * pitch / 2+ + (luma_idx % pitch) + w*h; tile_height /= 2; // we copy 2 luma lines at once while (tile_height--) {- memcpy(&pic->p[0].p_pixels[luma_idx], src_luma, tile_width);++ memcpy(&dst[luma_idx], src_luma, tile_width); src_luma += TILE_WIDTH; luma_idx += pitch; - memcpy(&pic->p[0].p_pixels[luma_idx], src_luma, tile_width);+ memcpy(&dst[luma_idx], src_luma, tile_width); src_luma += TILE_WIDTH; luma_idx += pitch; - memcpy(&pic->p[1].p_pixels[chroma_idx], src_chroma, tile_width);+ memcpy(&dst[chroma_idx], src_chroma, tile_width); src_chroma += TILE_WIDTH; chroma_idx += pitch; }
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إجابة الخبير: Fadi Ibrahim
Fadi Ibrahim
Career Counselor
الأسئلة المجابة 76124 | نسبة الرضا 97.6%
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إسأل Career Counselor
Fadi Ibrahim
Career Counselor
الأسئلة المجابة 76124 | نسبة الرضا 97.5%
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