Add Avid Meridien Uncompressed (AVUI) encoder.

Changelog

@@ -28,7 +28,7 @@ version next:
 - super2xsai filter ported from libmpcodecs
 - add libavresample audio conversion library for compatibility
 - MicroDVD decoder
-- Avid Meridien (AVUI) decoder
+- Avid Meridien (AVUI) encoder and decoder
 - accept + prefix to -pix_fmt option to disable automatic conversions.
 - audio filters support in libavfilter and avconv
 - add fps filter

libavcodec/Makefile

@@ -105,6 +105,7 @@ OBJS-$(CONFIG_AVRP_DECODER)            += r210dec.o
 OBJS-$(CONFIG_AVRP_ENCODER)            += r210enc.o
 OBJS-$(CONFIG_AVS_DECODER)             += avs.o
 OBJS-$(CONFIG_AVUI_DECODER)            += avuidec.o
+OBJS-$(CONFIG_AVUI_ENCODER)            += avuienc.o
 OBJS-$(CONFIG_AYUV_DECODER)            += v408dec.o
 OBJS-$(CONFIG_AYUV_ENCODER)            += v408enc.o
 OBJS-$(CONFIG_BETHSOFTVID_DECODER)     += bethsoftvideo.o

libavcodec/allcodecs.c

@@ -81,7 +81,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER (AURA2, aura2);
     REGISTER_ENCDEC  (AVRP, avrp);
     REGISTER_DECODER (AVS, avs);
-    REGISTER_DECODER (AVUI, avui);
+    REGISTER_ENCDEC  (AVUI, avui);
     REGISTER_ENCDEC  (AYUV, ayuv);
     REGISTER_DECODER (BETHSOFTVID, bethsoftvid);
     REGISTER_DECODER (BFI, bfi);

libavcodec/avuienc.c

@@ -0,0 +1,107 @@
+/*
+ * 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"
+
+static av_cold int avui_encode_init(AVCodecContext *avctx)
+{
+    avctx->coded_frame = avcodec_alloc_frame();
+
+    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->coded_frame) {
+        av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+        return AVERROR(ENOMEM);
+    }
+
+    return 0;
+}
+
+static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                             const AVFrame *pic, int *got_packet)
+{
+    uint8_t *dst, *src = pic->data[0];
+    int i, j, skip, ret, size, interlaced = pic->interlaced_frame;
+
+    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)) < 0)
+        return ret;
+    dst = pkt->data;
+    if (!(avctx->extradata = av_mallocz(24 + FF_INPUT_BUFFER_PADDING_SIZE)))
+        return AVERROR(ENOMEM);
+    avctx->extradata_size = 24;
+    memcpy(avctx->extradata, "\0\0\0\x18""APRGAPRG0001", 16);
+    if (interlaced) {
+        avctx->extradata[19] = 2;
+    } else {
+        avctx->extradata[19] = 1;
+        dst += avctx->width * skip;
+    }
+
+    avctx->coded_frame->reference = 0;
+    avctx->coded_frame->key_frame = 1;
+    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+
+    for (i = 0; i <= interlaced; i++) {
+        if (interlaced && avctx->height == 486) {
+            src = pic->data[0] + (1 - i) * pic->linesize[0];
+        } else {
+            src = pic->data[0] + i * pic->linesize[0];
+        }
+        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;
+}
+
+static av_cold int avui_encode_close(AVCodecContext *avctx)
+{
+    av_freep(&avctx->coded_frame);
+
+    return 0;
+}
+
+AVCodec ff_avui_encoder = {
+    .name         = "avui",
+    .type         = AVMEDIA_TYPE_VIDEO,
+    .id           = CODEC_ID_AVUI,
+    .init         = avui_encode_init,
+    .encode2      = avui_encode_frame,
+    .close        = avui_encode_close,
+    .pix_fmts     = (const enum PixelFormat[]){ PIX_FMT_UYVY422, PIX_FMT_NONE },
+    .long_name    = NULL_IF_CONFIG_SMALL("Avid Meridien Uncompressed"),
+};

libavcodec/version.h

@@ -27,7 +27,7 @@
  */
 
 #define LIBAVCODEC_VERSION_MAJOR 54
-#define LIBAVCODEC_VERSION_MINOR  22
+#define LIBAVCODEC_VERSION_MINOR  23
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

tests/codec-regression.sh

@@ -350,6 +350,11 @@ do_video_encoding v408.avi "-an -c:v v408 -sws_flags neighbor+bitexact"
 do_video_decoding "" "-sws_flags neighbor+bitexact -pix_fmt yuv420p"
 fi
 
+if [ -n "$do_avui" ] ; then
+do_video_encoding avui.mov "-s pal -an -c:v avui -sws_flags neighbor+bitexact"
+do_video_decoding "" "-s cif -sws_flags neighbor+bitexact -pix_fmt yuv420p"
+fi
+
 if [ -n "$do_yuv" ] ; then
 do_video_encoding yuv.avi "-an -vcodec rawvideo -pix_fmt yuv420p"
 do_video_decoding "" "-pix_fmt yuv420p"

tests/ref/vsynth1/avui

@@ -0,0 +1,4 @@
+6eaf08e0e02bccb135b934c5036eac25 *./tests/data/vsynth1/avui.mov
+42624903 ./tests/data/vsynth1/avui.mov
+c5ccac874dbf808e9088bc3107860042 *./tests/data/avui.vsynth1.out.yuv
+stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  7603200/  7603200

tests/ref/vsynth2/avui

@@ -0,0 +1,4 @@
+3f7c7bb5eba0006feb727badcad2b9bd *./tests/data/vsynth2/avui.mov
+42624903 ./tests/data/vsynth2/avui.mov
+dde5895817ad9d219f79a52d0bdfb001 *./tests/data/avui.vsynth2.out.yuv
+stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  7603200/  7603200