1 files changed, 103 insertions, 0 deletions
diff --git a/libavcodec/avuienc.c b/libavcodec/avuienc.c
new file mode 100644
index 0000000..b219906
--- /dev/null
+++ b/libavcodec/avuienc.c
@@ -0,0 +1,103 @@
+/*
+ * AVID Meridien encoder
+ *
+ * Copyright (c) 2012 Carl Eugen Hoyos
+ *
+ * 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 "avcodec.h"
+#include "internal.h"
+#include "libavutil/intreadwrite.h"
+
+static av_cold int avui_encode_init(AVCodecContext *avctx)
+{
+    if (avctx->width != 720 || avctx->height != 486 && avctx->height != 576) {
+        av_log(avctx, AV_LOG_ERROR, "Only 720x486 and 720x576 are supported.\n");
+        return AVERROR(EINVAL);
+    }
+    if (!(avctx->extradata = av_mallocz(144 + AV_INPUT_BUFFER_PADDING_SIZE)))
+        return AVERROR(ENOMEM);
+    avctx->extradata_size = 144;
+    memcpy(avctx->extradata, "\0\0\0\x18""APRGAPRG0001", 16);
+    if (avctx->field_order > AV_FIELD_PROGRESSIVE) {
+        avctx->extradata[19] = 2;
+    } else {
+        avctx->extradata[19] = 1;
+    }
+    memcpy(avctx->extradata + 24, "\0\0\0\x78""ARESARES0001""\0\0\0\x98", 20);
+    AV_WB32(avctx->extradata + 44, avctx->width);
+    AV_WB32(avctx->extradata + 48, avctx->height);
+    memcpy(avctx->extradata + 52, "\0\0\0\x1\0\0\0\x20\0\0\0\x2", 12);
+
+
+    return 0;
+}
+
+static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                             const AVFrame *pic, int *got_packet)
+{
+    uint8_t *dst;
+    int i, j, skip, ret, size, interlaced;
+
+    interlaced = avctx->field_order > AV_FIELD_PROGRESSIVE;
+
+    if (avctx->height == 486) {
+        skip = 10;
+    } else {
+        skip = 16;
+    }
+    size = 2 * avctx->width * (avctx->height + skip) + 8 * interlaced;
+    if ((ret = ff_alloc_packet2(avctx, pkt, size, size)) < 0)
+        return ret;
+    dst = pkt->data;
+    if (!interlaced) {
+        memset(dst, 0, avctx->width * skip);
+        dst += avctx->width * skip;
+    }
+
+    for (i = 0; i <= interlaced; i++) {
+        uint8_t *src;
+        if (interlaced && avctx->height == 486) {
+            src = pic->data[0] + (1 - i) * pic->linesize[0];
+        } else {
+            src = pic->data[0] + i * pic->linesize[0];
+        }
+        memset(dst, 0, avctx->width * skip + 4 * i);
+        dst += avctx->width * skip + 4 * i;
+        for (j = 0; j < avctx->height; j += interlaced + 1) {
+            memcpy(dst, src, avctx->width * 2);
+            src += (interlaced + 1) * pic->linesize[0];
+            dst += avctx->width * 2;
+        }
+    }
+
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+    return 0;
+}
+
+AVCodec ff_avui_encoder = {
+    .name         = "avui",
+    .long_name    = NULL_IF_CONFIG_SMALL("Avid Meridien Uncompressed"),
+    .type         = AVMEDIA_TYPE_VIDEO,
+    .id           = AV_CODEC_ID_AVUI,
+    .init         = avui_encode_init,
+    .encode2      = avui_encode_frame,
+    .capabilities = AV_CODEC_CAP_EXPERIMENTAL | AV_CODEC_CAP_INTRA_ONLY,
+    .pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_UYVY422, AV_PIX_FMT_NONE },
+};