avcodec/v210enc: move v210_enc_8/10 function to template file

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 90 insertions, 0 deletions

diff --git a/libavcodec/v210_template.c b/libavcodec/v210_template.c
new file mode 100644
index 0000000000..9e1d9f9cd3
--- /dev/null
+++ b/libavcodec/v210_template.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
+ *
+ * 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 "bytestream.h"
+#include "internal.h"
+
+#define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1))
+#define WRITE_PIXELS(a, b, c, depth)                      \
+    do {                                                  \
+        val  =  CLIP(*a++, depth)  << (10-depth);         \
+        val |=  (CLIP(*b++, depth) << (20-depth)) |       \
+                (CLIP(*c++, depth) << (30-depth));        \
+        AV_WL32(dst, val);                                \
+        dst += 4;                                         \
+    } while (0)
+
+static void RENAME(v210_enc)(AVCodecContext *avctx,
+        uint8_t *dst, const AVFrame *pic)
+{
+    V210EncContext *s = avctx->priv_data;
+    int aligned_width = ((avctx->width + 47) / 48) * 48;
+    int stride = aligned_width * 8 / 3;
+    int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
+    int h, w;
+    const TYPE *y = (const TYPE *)pic->data[0];
+    const TYPE *u = (const TYPE *)pic->data[1];
+    const TYPE *v = (const TYPE *)pic->data[2];
+    const int sample_size = 6 * s->RENAME(sample_factor);
+    const int sample_w    = avctx->width / sample_size;
+
+    for (h = 0; h < avctx->height; h++) {
+        uint32_t val;
+        w = sample_w * sample_size;
+        s->RENAME(pack_line)(y, u, v, dst, w);
+
+        y += w;
+        u += w >> 1;
+        v += w >> 1;
+        dst += sample_w * 16 * s->RENAME(sample_factor);
+
+        for (; w < avctx->width - 5; w += 6) {
+            WRITE_PIXELS(u, y, v, DEPTH);
+            WRITE_PIXELS(y, u, y, DEPTH);
+            WRITE_PIXELS(v, y, u, DEPTH);
+            WRITE_PIXELS(y, v, y, DEPTH);
+        }
+        if (w < avctx->width - 1) {
+            WRITE_PIXELS(u, y, v, DEPTH);
+
+            val = CLIP(*y++, DEPTH) << (10-DEPTH);
+            if (w == avctx->width - 2) {
+                AV_WL32(dst, val);
+                dst += 4;
+            }
+        }
+        if (w < avctx->width - 3) {
+            val |= (CLIP(*u++, DEPTH) << (20-DEPTH)) | (CLIP(*y++, DEPTH) << (30-DEPTH));
+            AV_WL32(dst, val);
+            dst += 4;
+
+            val = CLIP(*v++, DEPTH) << (10-DEPTH) | (CLIP(*y++, DEPTH) << (20-DEPTH));
+            AV_WL32(dst, val);
+            dst += 4;
+        }
+
+        memset(dst, 0, line_padding);
+        dst += line_padding;
+        y += pic->linesize[0] / BYTES_PER_PIXEL - avctx->width;
+        u += pic->linesize[1] / BYTES_PER_PIXEL - avctx->width / 2;
+        v += pic->linesize[2] / BYTES_PER_PIXEL - avctx->width / 2;
+    }
+}