1 files changed, 86 insertions, 0 deletions
diff --git a/ffmpeg/libswscale/bfin/swscale_bfin.c b/ffmpeg/libswscale/bfin/swscale_bfin.c
new file mode 100644
index 0000000..2b93858
--- /dev/null
+++ b/ffmpeg/libswscale/bfin/swscale_bfin.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
+ *
+ * Blackfin software video scaler operations
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libswscale/swscale_internal.h"
+
+#if defined (__FDPIC__) && CONFIG_SRAM
+#define L1CODE __attribute__((l1_text))
+#else
+#define L1CODE
+#endif
+
+int ff_bfin_uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                       uint8_t *vdst, int width, int height,
+                       int lumStride, int chromStride, int srcStride) L1CODE;
+
+int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                       uint8_t *vdst, int width, int height,
+                       int lumStride, int chromStride, int srcStride) L1CODE;
+
+static int uyvytoyv12_unscaled(SwsContext *c, const uint8_t *src[],
+                               int srcStride[], int srcSliceY, int srcSliceH,
+                               uint8_t *dst[], int dstStride[])
+{
+    uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
+    uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
+    uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
+    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
+    int w = dstStride[0];
+
+    ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH,
+                       dstStride[0], dstStride[1], srcStride[0]);
+
+    return srcSliceH;
+}
+
+static int yuyvtoyv12_unscaled(SwsContext *c, const uint8_t *src[],
+                               int srcStride[], int srcSliceY, int srcSliceH,
+                               uint8_t *dst[], int dstStride[])
+{
+    uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
+    uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
+    uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
+    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
+    int w = dstStride[0];
+
+    ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH,
+                       dstStride[0], dstStride[1], srcStride[0]);
+
+    return srcSliceH;
+}
+
+void ff_bfin_get_unscaled_swscale(SwsContext *c)
+{
+    if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_UYVY422) {
+        av_log(NULL, AV_LOG_VERBOSE,
+               "selecting Blackfin optimized uyvytoyv12_unscaled\n");
+        c->swScale = uyvytoyv12_unscaled;
+    }
+    if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_YUYV422) {
+        av_log(NULL, AV_LOG_VERBOSE,
+               "selecting Blackfin optimized yuyvtoyv12_unscaled\n");
+        c->swScale = yuyvtoyv12_unscaled;
+    }
+}