From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Mon, 26 Aug 2013 15:10:18 +0100
Subject: adding ffmpeg specific version

---
 ffmpeg1/libavcodec/v410dec.c | 98 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 ffmpeg1/libavcodec/v410dec.c

(limited to 'ffmpeg1/libavcodec/v410dec.c')

diff --git a/ffmpeg1/libavcodec/v410dec.c b/ffmpeg1/libavcodec/v410dec.c
new file mode 100644
index 0000000..f8229e2
--- /dev/null
+++ b/ffmpeg1/libavcodec/v410dec.c
@@ -0,0 +1,98 @@
+/*
+ * v410 decoder
+ *
+ * Copyright (c) 2011 Derek Buitenhuis
+ *
+ * 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 "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "avcodec.h"
+#include "internal.h"
+
+static av_cold int v410_decode_init(AVCodecContext *avctx)
+{
+    avctx->pix_fmt             = AV_PIX_FMT_YUV444P10;
+    avctx->bits_per_raw_sample = 10;
+
+    if (avctx->width & 1) {
+        if (avctx->err_recognition & AV_EF_EXPLODE) {
+            av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n");
+            return AVERROR_INVALIDDATA;
+        } else {
+            av_log(avctx, AV_LOG_WARNING, "v410 requires width to be even, continuing anyway.\n");
+        }
+    }
+
+    return 0;
+}
+
+static int v410_decode_frame(AVCodecContext *avctx, void *data,
+                             int *got_frame, AVPacket *avpkt)
+{
+    AVFrame *pic = data;
+    uint8_t *src = avpkt->data;
+    uint16_t *y, *u, *v;
+    uint32_t val;
+    int i, j, ret;
+
+    if (avpkt->size < 4 * avctx->height * avctx->width) {
+        av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+        return AVERROR(EINVAL);
+    }
+
+    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+        return ret;
+
+    pic->key_frame = 1;
+    pic->pict_type = AV_PICTURE_TYPE_I;
+
+    y = (uint16_t *)pic->data[0];
+    u = (uint16_t *)pic->data[1];
+    v = (uint16_t *)pic->data[2];
+
+    for (i = 0; i < avctx->height; i++) {
+        for (j = 0; j < avctx->width; j++) {
+            val = AV_RL32(src);
+
+            u[j] = (val >>  2) & 0x3FF;
+            y[j] = (val >> 12) & 0x3FF;
+            v[j] = (val >> 22);
+
+            src += 4;
+        }
+
+        y += pic->linesize[0] >> 1;
+        u += pic->linesize[1] >> 1;
+        v += pic->linesize[2] >> 1;
+    }
+
+    *got_frame = 1;
+
+    return avpkt->size;
+}
+
+AVCodec ff_v410_decoder = {
+    .name         = "v410",
+    .type         = AVMEDIA_TYPE_VIDEO,
+    .id           = AV_CODEC_ID_V410,
+    .init         = v410_decode_init,
+    .decode       = v410_decode_frame,
+    .capabilities = CODEC_CAP_DR1,
+    .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"),
+};
-- 
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