DNxHD (SMPTE VC-3) encoder

Originally committed as revision 10682 to svn://svn.ffmpeg.org/ffmpeg/trunk

Changelog

@@ -97,6 +97,7 @@ version <next>
 - Monkey's Audio demuxer and decoder
 - additional SPARC (VIS) optimizations
 - AMV audio and video decoder
+- DNxHD encoder
 
 version 0.4.9-pre1:
 

MAINTAINERS

@@ -118,7 +118,7 @@ Codecs:
   cook.c, cookdata.h                    Benjamin Larsson
   cscd.c                                Reimar Doeffinger
   dca.c                                 Kostya Shishkov
-  dnxhddec.c                            Baptiste Coudurier
+  dnxhd*                                Baptiste Coudurier
   dpcm.c                                Mike Melanson
   dxa.c                                 Kostya Shishkov
   dv.c                                  Roman Shaposhnik

doc/general.texi

@@ -226,7 +226,7 @@ following image formats are supported:
 @item Cin Video              @tab     @tab  X @tab Codec used in Delphine Software games.
 @item Tiertex Seq Video      @tab     @tab  X @tab Codec used in DOS CDROM FlashBack game.
 @item DXA Video              @tab     @tab  X @tab Codec originally used in Feeble Files game.
-@item AVID DNxHD             @tab     @tab  X @tab aka SMPTE VC3
+@item AVID DNxHD             @tab   X @tab  X @tab aka SMPTE VC3
 @item C93 Video              @tab     @tab  X @tab Codec used in Cyberia game.
 @item THP                    @tab     @tab  X @tab Used on the Nintendo GameCube.
 @item Bethsoft VID           @tab     @tab  X @tab Used in some games from Bethesda Softworks.

libavcodec/Makefile

@@ -56,6 +56,7 @@ OBJS-$(CONFIG_CSCD_DECODER)            += cscd.o
 OBJS-$(CONFIG_CYUV_DECODER)            += cyuv.o
 OBJS-$(CONFIG_DCA_DECODER)             += dca.o
 OBJS-$(CONFIG_DNXHD_DECODER)           += dnxhddec.o dnxhddata.o
+OBJS-$(CONFIG_DNXHD_ENCODER)           += dnxhdenc.o dnxhddata.o
 OBJS-$(CONFIG_DSICINVIDEO_DECODER)     += dsicinav.o
 OBJS-$(CONFIG_DSICINAUDIO_DECODER)     += dsicinav.o
 OBJS-$(CONFIG_DVBSUB_DECODER)          += dvbsubdec.o

libavcodec/allcodecs.c

@@ -73,7 +73,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER (CLJR, cljr);
     REGISTER_DECODER (CSCD, cscd);
     REGISTER_DECODER (CYUV, cyuv);
-    REGISTER_DECODER (DNXHD, dnxhd);
+    REGISTER_ENCDEC  (DNXHD, dnxhd);
     REGISTER_DECODER (DSICINVIDEO, dsicinvideo);
     REGISTER_ENCDEC  (DVVIDEO, dvvideo);
     REGISTER_DECODER (DXA, dxa);

libavcodec/avcodec.h

@@ -33,8 +33,8 @@
 #define AV_STRINGIFY(s)         AV_TOSTRING(s)
 #define AV_TOSTRING(s) #s
 
-#define LIBAVCODEC_VERSION_INT  ((51<<16)+(44<<8)+0)
-#define LIBAVCODEC_VERSION      51.44.0
+#define LIBAVCODEC_VERSION_INT  ((51<<16)+(45<<8)+0)
+#define LIBAVCODEC_VERSION      51.45.0
 #define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
 
 #define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

libavformat/movenc.c

@@ -516,6 +516,51 @@ static int mov_write_avcc_tag(ByteIOContext *pb, MOVTrack *track)
     return updateSize(pb, pos);
 }
 
+/* also used by all avid codecs (dv, imx, meridien) and their variants */
+static int mov_write_avid_tag(ByteIOContext *pb, MOVTrack *track)
+{
+    int i;
+    put_be32(pb, 24); /* size */
+    put_tag(pb, "ACLR");
+    put_tag(pb, "ACLR");
+    put_tag(pb, "0001");
+    put_be32(pb, 1); /* yuv 1 / rgb 2 ? */
+    put_be32(pb, 0); /* unknown */
+
+    put_be32(pb, 24); /* size */
+    put_tag(pb, "APRG");
+    put_tag(pb, "APRG");
+    put_tag(pb, "0001");
+    put_be32(pb, 1); /* unknown */
+    put_be32(pb, 0); /* unknown */
+
+    put_be32(pb, 120); /* size */
+    put_tag(pb, "ARES");
+    put_tag(pb, "ARES");
+    put_tag(pb, "0001");
+    put_be32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
+    put_be32(pb, track->enc->width);
+    /* values below are based on samples created with quicktime and avid codecs */
+    if (track->vosData[5] & 2) { // interlaced
+        put_be32(pb, track->enc->height/2);
+        put_be32(pb, 2); /* unknown */
+        put_be32(pb, 0); /* unknown */
+        put_be32(pb, 4); /* unknown */
+    } else {
+        put_be32(pb, track->enc->height);
+        put_be32(pb, 1); /* unknown */
+        put_be32(pb, 0); /* unknown */
+        put_be32(pb, 5); /* unknown */
+    }
+    /* padding */
+    for (i = 0; i < 10; i++)
+        put_be64(pb, 0);
+
+    /* extra padding for stsd needed */
+    put_be32(pb, 0);
+    return 0;
+}
+
 static int mov_find_video_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
@@ -623,6 +668,8 @@ static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
         mov_write_svq3_tag(pb);
     else if(track->enc->codec_id == CODEC_ID_H264)
         mov_write_avcc_tag(pb, track);
+    else if(track->enc->codec_id == CODEC_ID_DNXHD)
+        mov_write_avid_tag(pb, track);
 
     return updateSize (pb, pos);
 }
@@ -1561,6 +1608,13 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
         avc_parse_nal_units(&pkt->data, &pkt->size);
         assert(pkt->size);
         size = pkt->size;
+    } else if (enc->codec_id == CODEC_ID_DNXHD && !trk->vosLen) {
+        /* copy frame header to create needed atoms */
+        if (size < 640)
+            return -1;
+        trk->vosLen = 640;
+        trk->vosData = av_malloc(trk->vosLen);
+        memcpy(trk->vosData, pkt->data, 640);
     }
 
     if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {