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-rw-r--r--libavcodec/avuienc.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/libavcodec/avuienc.c b/libavcodec/avuienc.c
new file mode 100644
index 0000000000..b219906706
--- /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 },
+};