Add decoder for R210 (uncompressed 10-bit RGB) codec.

Originally committed as revision 20891 to svn://svn.ffmpeg.org/ffmpeg/trunk

Changelog

@@ -45,6 +45,7 @@ version <next>:
 - -formats option split into -formats, -codecs, -bsfs, and -protocols
 - IV8 demuxer
 - CDG demuxer and decoder
+- R210 decoder
 
 
 

doc/general.texi

@@ -430,6 +430,7 @@ following image formats are supported:
     @tab fourcc: 'smc '
 @item QuickTime video (RPZA) @tab     @tab  X
     @tab fourcc: rpza
+@item R210 Quicktime Uncompressed RGB 10-bit     @tab     @tab  X
 @item Raw Video              @tab  X  @tab  X
 @item RealVideo 1.0          @tab  X  @tab  X
 @item RealVideo 2.0          @tab  X  @tab  X

libavcodec/Makefile

@@ -247,6 +247,7 @@ OBJS-$(CONFIG_QDRAW_DECODER)           += qdrw.o
 OBJS-$(CONFIG_QPEG_DECODER)            += qpeg.o
 OBJS-$(CONFIG_QTRLE_DECODER)           += qtrle.o
 OBJS-$(CONFIG_QTRLE_ENCODER)           += qtrleenc.o
+OBJS-$(CONFIG_R210_DECODER)            += r210dec.o
 OBJS-$(CONFIG_RA_144_DECODER)          += ra144.o celp_filters.o
 OBJS-$(CONFIG_RA_288_DECODER)          += ra288.o celp_math.o celp_filters.o
 OBJS-$(CONFIG_RAWVIDEO_DECODER)        += rawdec.o

libavcodec/allcodecs.c

@@ -146,6 +146,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER (QDRAW, qdraw);
     REGISTER_DECODER (QPEG, qpeg);
     REGISTER_ENCDEC  (QTRLE, qtrle);
+    REGISTER_DECODER (R210,  r210);
     REGISTER_ENCDEC  (RAWVIDEO, rawvideo);
     REGISTER_DECODER (RL2, rl2);
     REGISTER_ENCDEC  (ROQ, roq);

libavcodec/avcodec.h

@@ -201,6 +201,7 @@ enum CodecID {
     CODEC_ID_FRWU,
     CODEC_ID_FLASHSV2,
     CODEC_ID_CDGRAPHICS,
+    CODEC_ID_R210,
 
     /* various PCM "codecs" */
     CODEC_ID_PCM_S16LE= 0x10000,

libavcodec/r210dec.c

@@ -0,0 +1,104 @@
+/*
+ * R210 decoder
+ *
+ * Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * 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 "libavutil/bswap.h"
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+    avctx->pix_fmt             = PIX_FMT_RGB48;
+    avctx->bits_per_raw_sample = 10;
+
+    avctx->coded_frame         = avcodec_alloc_frame();
+
+    return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+                        AVPacket *avpkt)
+{
+    int h, w;
+    AVFrame *pic = avctx->coded_frame;
+    const uint32_t *src = (const uint32_t *)avpkt->data;
+    int aligned_width = FFALIGN(avctx->width, 64);
+    uint8_t *dst_line;
+
+    if (pic->data[0])
+        avctx->release_buffer(avctx, pic);
+
+    if (avpkt->size < 4 * aligned_width * avctx->height) {
+        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
+        return -1;
+    }
+
+    pic->reference = 0;
+    if (avctx->get_buffer(avctx, pic) < 0)
+        return -1;
+
+    pic->pict_type = FF_I_TYPE;
+    pic->key_frame = 1;
+    dst_line = pic->data[0];
+
+    for (h = 0; h < avctx->height; h++) {
+        uint16_t *dst = (uint16_t *)dst_line;
+        for (w = 0; w < avctx->width; w++) {
+            uint32_t pixel = be2me_32(*src++);
+            uint16_t r, g, b;
+            r =  pixel <<  6;
+            g = (pixel >>  4) & 0xffc0;
+            b = (pixel >> 14) & 0xffc0;
+            *dst++ = r | (r >> 10);
+            *dst++ = g | (g >> 10);
+            *dst++ = b | (b >> 10);
+        }
+        src += aligned_width - avctx->width;
+        dst_line += pic->linesize[0];
+    }
+
+    *data_size = sizeof(AVFrame);
+    *(AVFrame*)data = *avctx->coded_frame;
+
+    return avpkt->size;
+}
+
+static av_cold int decode_close(AVCodecContext *avctx)
+{
+    AVFrame *pic = avctx->coded_frame;
+    if (pic->data[0])
+        avctx->release_buffer(avctx, pic);
+    av_freep(&avctx->coded_frame);
+
+    return 0;
+}
+
+AVCodec r210_decoder = {
+    "r210",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_R210,
+    0,
+    decode_init,
+    NULL,
+    decode_close,
+    decode_frame,
+    CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
+};

libavformat/isom.c

@@ -67,6 +67,7 @@ const AVCodecTag codec_movvideo_tags[] = {
     { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
     { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
 
+    { CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
     { CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
 
     { CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */

libavformat/riff.c

@@ -163,6 +163,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
     { CODEC_ID_RAWVIDEO,     MKTAG('H', 'D', 'Y', 'C') },
     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
     { CODEC_ID_FRWU,         MKTAG('F', 'R', 'W', 'U') },
+    { CODEC_ID_R210,         MKTAG('r', '2', '1', '0') },
     { CODEC_ID_V210,         MKTAG('v', '2', '1', '0') },
     { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '1') },
     { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '2') },