mov, 3gp, mp4 muxer by (Thomas Raivio <tjraivio at cc dot hut dot fi>)
authorMichael Niedermayer <michaelni@gmx.at>
Tue, 26 Aug 2003 20:23:13 +0000 (20:23 +0000)
committerMichael Niedermayer <michaelni@gmx.at>
Tue, 26 Aug 2003 20:23:13 +0000 (20:23 +0000)
Originally committed as revision 2168 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/Makefile
libavformat/allformats.c
libavformat/avformat.h
libavformat/movenc.c [new file with mode: 0644]

index e898e40..98941da 100644 (file)
@@ -14,7 +14,7 @@ PPOBJS=
 # mux and demuxes
 OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o raw.o rm.o \
       avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dv.o \
-      yuv4mpeg.o 4xm.o flvenc.o flvdec.o
+      yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o
 
 ifeq ($(CONFIG_RISKY),yes)
 OBJS+= asf.o
index 6d7064c..b49d319 100644 (file)
@@ -45,6 +45,7 @@ void av_register_all(void)
     au_init();
     gif_init();
     mov_init();
+    movenc_init();
     jpeg_init();
     dv_init();
     fourxm_init();
index ef70029..1915146 100644 (file)
@@ -334,6 +334,9 @@ int swf_init(void);
 /* mov.c */
 int mov_init(void);
 
+/* movenc.c */
+int movenc_init(void);
+
 /* flvenc.c */
 int flvenc_init(void);
 
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
new file mode 100644 (file)
index 0000000..ca03c4a
--- /dev/null
@@ -0,0 +1,857 @@
+/*
+ * MOV, 3GP, MP4 encoder.
+ * Copyright (c) 2003 Thomas Raivio.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include "avformat.h"
+#include "avio.h"
+#include <time.h>
+
+/*
+ * Limitations
+ * - Currently supports h.263, MPEG4 video codecs, and AMR audio codec.
+ */
+
+#define MOV_INDEX_CLUSTER_SIZE 16384
+#define globalTimescale 1000
+
+typedef struct MOVIentry {
+    unsigned int flags, pos, len;
+    unsigned int entries;
+} MOVIentry;
+
+typedef struct MOVIndex {
+    int         entry;
+    int         samples;
+    int         mdat_size;
+    offset_t    mdat_pos;
+    int         ents_allocated;
+    long        timescale;
+    long        time;
+    long        frameDuration;
+    long        sampleDelta;
+    int         trackID;
+    AVCodecContext *enc;
+
+    int         vosLen;
+    char       *vosData;
+    MOVIentry** cluster;
+} MOVTrack;
+
+typedef struct {
+    long    time;
+    int     nb_streams;
+    offset_t movi_list;
+    long    timescale;
+    MOVTrack tracks[MAX_STREAMS];
+} MOVContext;
+
+void writeSize (ByteIOContext *pb, int pos, int size)
+{
+    long curpos = url_ftell(pb);
+    url_fseek(pb, pos, SEEK_SET);
+    put_be32(pb, size); /* rewrite size */
+    url_fseek(pb, curpos, SEEK_SET);
+}
+
+int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int i;
+    put_be32(pb, 16+track->entry*4); /* size */
+    put_tag(pb, "stco");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, track->entry); /* entry count */
+    for (i=0; i<track->entry; i++) {
+        int cl = i / MOV_INDEX_CLUSTER_SIZE;
+        int id = i % MOV_INDEX_CLUSTER_SIZE;
+        put_be32(pb, track->cluster[cl][id].pos);
+    }
+    return 16+track->entry*4;
+}
+
+int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int i, size;
+
+    if(track->cluster[0][0].entries != 0) 
+        size = 20;
+    else
+        size = 20+track->samples*4;
+    put_be32(pb, size); /* size */
+    put_tag(pb, "stsz");
+    put_be32(pb, 0); /* version & flags */
+
+    /* TODO: Ugly (and false) assumption: if we have a chunk of samples, assume
+     * all sizes are same */
+    if(track->cluster[0][0].entries != 0)   {
+        int sSize = track->cluster[0][0].len/track->cluster[0][0].entries;
+        put_be32(pb, sSize); /* sample size */
+        put_be32(pb, track->samples); /* sample count */
+    }
+    else 
+    {
+        put_be32(pb, 0); /* sample size */
+        put_be32(pb, track->samples); /* sample count */
+        for (i=0; i<track->samples; i++) {
+            int cl = i / MOV_INDEX_CLUSTER_SIZE;
+            int id = i % MOV_INDEX_CLUSTER_SIZE;
+            put_be32(pb, track->cluster[cl][id].len);
+        }
+    }
+    return size;
+}
+
+int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size;
+    if(track->cluster[0][0].entries != 0)
+        size = 16+track->entry*4*3;
+    else
+        size = 0x1c;
+    put_be32(pb, size); // size 
+    put_tag(pb, "stsc");
+    put_be32(pb, 0); // version & flags 
+    if(track->cluster[0][0].entries != 0) {
+        int i;
+        put_be32(pb, track->entry); // entry count 
+        for (i=0; i<track->entry; i++) {
+            int cl = i / MOV_INDEX_CLUSTER_SIZE;
+            int id = i % MOV_INDEX_CLUSTER_SIZE;
+            put_be32(pb, i+1); // first chunk 
+            put_be32(pb, track->cluster[cl][id].entries);
+            put_be32(pb, 0x1); // sample description index 
+        }
+    }
+    else {
+        put_be32(pb, 1); // entry count 
+        put_be32(pb, 0x1); // first chunk 
+        put_be32(pb, 0x1); // samples per chunk 
+        put_be32(pb, 0x1); // sample description index 
+    }
+
+    return size;
+}
+
+int mov_write_stss_tag(ByteIOContext *pb) //TRA OK
+{
+    put_be32(pb, 0x14); /* size */
+    put_tag(pb, "stss");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, 1); /* entry count */
+    put_be32(pb, 0x1); /* sample number */
+    return 0x14;
+}
+
+int mov_write_damr_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 0x11); /* size */
+    put_tag(pb, "damr");
+    put_tag(pb, "FFMP");
+    put_byte(pb, 0);
+    put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
+    put_be16(pb, 1); /* Mode change period (no restriction) */
+    return 0x11;
+}
+
+int mov_write_samr_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 0x24;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    /* "samr" for AMR NB, "sawb" for AMR WB */
+    put_tag(pb, "samr");
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, 0); /* Reserved */
+    put_be16(pb, 1); /* Data-reference index, XXX  == 1 */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+
+    put_be16(pb, 2); /* Reserved */
+    put_be16(pb, 0x10); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, track->timescale); /* Time scale */
+    put_be16(pb, 0); /* Reserved */
+
+    size += mov_write_damr_tag(pb);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_d263_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 0xf); /* size */
+    put_tag(pb, "d263");
+    put_tag(pb, "FFMP");
+    put_be16(pb, 0x0a);
+    put_byte(pb, 0);
+    return 0xf;
+}
+
+int mov_write_s263_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 0x56;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "s263");
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, 0); /* Reserved */
+    put_be16(pb, 1); /* Data-reference index */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, track->enc->width); /* Video width */
+    put_be16(pb, track->enc->height); /* Video height */
+    put_be32(pb, 0x00480000); /* Reserved */
+    put_be32(pb, 0x00480000); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, 1); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be32(pb, 0); /* Reserved */
+    put_be16(pb, 0x18); /* Reserved */
+    put_be16(pb, 0xffff); /* Reserved */
+    size += mov_write_d263_tag(pb);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+static unsigned int esdsLength(unsigned int len)
+{
+    unsigned int result = 0;
+    unsigned char b = len & 0x7f;
+    result += b;
+    b = (len >> 8) & 0x7f;
+    result += (b + 0x80) << 8;
+    b = (len >> 16) & 0x7f;
+    result += (b + 0x80) << 16;
+    b = (len >> 24) & 0x7f;
+    result += (b + 0x80) << 24;
+    return result;
+}
+
+int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
+{
+    put_be32(pb, track->vosLen+18+14+17);
+    put_tag(pb, "esds");
+    put_be32(pb, 0);              // Version
+
+    put_byte(pb, 0x03);            // tag = ES_DescriptorTag
+    put_be32(pb, esdsLength(track->vosLen+18+14));  // Length
+    put_be16(pb, 0x0001);         // ID (= 1)
+    put_byte(pb, 0x00);            // flags (= no flags)
+
+// Decoderconfigdescriptor = 4
+    put_byte(pb, 0x04);            // tag = DecoderConfigDescriptor
+    put_be32(pb, esdsLength(track->vosLen+18));  // Length
+    put_byte(pb, 0x20);            // Object type indication (Visual 14496-2)
+    put_byte(pb, 0x11);            // flags (= Visualstream)
+    put_byte(pb, 0x0);             // Buffersize DB (24 bits)
+    put_be16(pb, 0x0dd2);          // Buffersize DB
+
+    // TODO: find real values for these
+    put_be32(pb, 0x0002e918);     // maxbitrate
+    put_be32(pb, 0x00017e6b);     // avg bitrate
+
+// Decoderspecific info Tag = 5
+    put_byte(pb, 0x05);           // tag = Decoderspecific info
+    put_be32(pb, esdsLength(track->vosLen));   // length
+    put_buffer(pb, track->vosData, track->vosLen);
+
+    put_byte(pb, 0x06);
+    put_be32(pb, esdsLength(1));  // length
+    put_byte(pb, 0x02);
+    return track->vosLen+18+14+17;
+}
+
+int mov_write_mp4v_tag(ByteIOContext *pb, MOVTrack* track) // Basic
+{
+    put_be32(pb, 194);
+    put_tag(pb, "mp4v");
+    put_be32(pb, 0);  // Reserved
+    put_be16(pb, 0);  // Reserved
+    put_be16(pb, 1);  // Data-reference index
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be16(pb, track->enc->width);  // Width
+    put_be16(pb, track->enc->height);  // Height
+    put_be32(pb, 0x00480000);  // Reserved
+    put_be32(pb, 0x00480000);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be16(pb, 1);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be32(pb, 0);  // Reserved
+    put_be16(pb, 24); // Reserved
+    put_be16(pb, 0xFFFF); // Reserved
+    mov_write_esds_tag(pb, track);
+    return 194;
+}
+
+int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 16;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "stsd");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, 1); /* entry count */
+    if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
+        if (track->enc->codec_id == CODEC_ID_H263) 
+            size += mov_write_s263_tag(pb, track);
+        else if (track->enc->codec_id == CODEC_ID_MPEG4) 
+            size += mov_write_mp4v_tag(pb, track);
+    }
+    else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {
+        if (track->enc->codec_id == CODEC_ID_AMR_NB) 
+            size += mov_write_samr_tag(pb, track);
+    }
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    put_be32(pb, 0x18); /* size */
+    put_tag(pb, "stts");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, 1); /* entry count */
+
+    put_be32(pb, track->samples); /* sample count */
+    put_be32(pb, track->sampleDelta); /* sample delta */
+    return 0x18;
+}
+
+int mov_write_dref_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 28); /* size */
+    put_tag(pb, "dref");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, 1); /* entry count */
+
+    put_be32(pb, 0xc); /* size */
+    put_tag(pb, "url ");
+    put_be32(pb, 1); /* version & flags */
+
+    return 28;
+}
+
+int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 8;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "stbl");
+    size += mov_write_stsd_tag(pb, track);
+    size += mov_write_stts_tag(pb, track);
+    if (track->enc->codec_type == CODEC_TYPE_VIDEO)
+        size += mov_write_stss_tag(pb);
+    size += mov_write_stsc_tag(pb, track);
+    size += mov_write_stsz_tag(pb, track);
+    size += mov_write_stco_tag(pb, track);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_dinf_tag(ByteIOContext *pb)
+{
+    int size = 8;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "dinf");
+    size += mov_write_dref_tag(pb);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_smhd_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 16); /* size */
+    put_tag(pb, "smhd");
+    put_be32(pb, 0); /* version & flags */
+    put_be16(pb, 0); /* reserved (balance, normally = 0) */
+    put_be16(pb, 0); /* reserved */
+    return 16;
+}
+
+int mov_write_vmhd_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 0x14); /* size (always 0x14) */
+    put_tag(pb, "vmhd");
+    put_be32(pb, 0x01); /* version & flags */
+    put_be64(pb, 0); /* reserved (graphics mode = copy) */
+    return 0x14;
+}
+
+int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 8;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "minf");
+    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+        size += mov_write_vmhd_tag(pb);
+    else
+        size += mov_write_smhd_tag(pb);
+    size += mov_write_dinf_tag(pb);
+    size += mov_write_stbl_tag(pb, track);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 0;
+    size = 45;
+    put_be32(pb, size); /* size */
+    put_tag(pb, "hdlr");
+    put_be32(pb, 0); /* Version & flags */
+    put_be32(pb, 0); /* reserved */
+    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+        put_tag(pb, "vide"); /* handler type */
+    else
+        put_tag(pb, "soun"); /* handler type */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    put_byte(pb, 0); /* reserved */
+    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
+        put_buffer(pb, "VideoHandler", 13);
+    else
+        put_buffer(pb, "SoundHandler", 13);
+    return size;
+}
+
+int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    put_be32(pb, 32); /* size */
+    put_tag(pb, "mdhd");
+    put_be32(pb, 0); /* Version & flags */
+    put_be32(pb, track->time); /* creation time */
+    put_be32(pb, track->time); /* modification time */
+    put_be32(pb, track->timescale); /* time scale */
+
+    put_be32(pb, track->timescale*track->entry*track->frameDuration/globalTimescale); /* duration */
+    put_be16(pb, 0); /* language, 0 = english */
+    put_be16(pb, 0); /* reserved (quality) */
+    return 32;
+}
+
+int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 8;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "mdia");
+    size += mov_write_mdhd_tag(pb, track);
+    size += mov_write_hdlr_tag(pb, track);
+    size += mov_write_minf_tag(pb, track);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    put_be32(pb, 0x5c); /* size (always 0x5c) */
+    put_tag(pb, "tkhd");
+    put_be32(pb, 1); /* version & flags (track enabled) */
+    put_be32(pb, track->time); /* creation time */
+    put_be32(pb, track->time); /* modification time */
+    put_be32(pb, track->trackID); /* track-id */
+    put_be32(pb, 0); /* reserved */
+    put_be32(pb, track->entry*track->frameDuration); /* duration */
+
+    put_be32(pb, 0); /* reserved */
+    put_be32(pb, 0); /* reserved */
+    put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */
+    /* Volume, only for audio */
+    if(track->enc->codec_type == CODEC_TYPE_AUDIO)
+        put_be16(pb, 0x0100);
+    else
+        put_be16(pb, 0);
+    put_be16(pb, 0); /* reserved */
+
+    /* Matrix structure */
+    put_be32(pb, 0x00010000); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x00010000); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x40000000); /* reserved */
+
+    /* Track width and height, for visual only */
+    if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
+        put_be32(pb, 0x01400000);
+        put_be32(pb, 0x00f00000);
+    }
+    else {
+        put_be32(pb, 0);
+        put_be32(pb, 0);
+    }
+    return 0x5c;
+}
+
+int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    int size = 8;
+    int pos;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size */
+    put_tag(pb, "trak");
+    size += mov_write_tkhd_tag(pb, track);
+    size += mov_write_mdia_tag(pb, track);
+    writeSize (pb, pos, size);
+    return size;
+}
+
+/* TODO: Not sorted out, but not necessary either */
+int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
+{
+    put_be32(pb, 0x15); /* size */
+    put_tag(pb, "iods");
+    put_be32(pb, 0);    /* version & flags */
+    put_be16(pb, 0x1007);
+    put_byte(pb, 0);
+    put_be16(pb, 0x4fff);
+    put_be16(pb, 0xfffe);
+    put_be16(pb, 0x01ff);
+    return 0x15;
+}
+
+int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
+{
+    int maxTrackID = 1, maxTrackLen = 0, i;
+
+    put_be32(pb, 0x6c); /* size (always 0x6c) */
+    put_tag(pb, "mvhd");
+    put_be32(pb, 0); /* version & flags */
+    put_be32(pb, mov->time); /* creation time */
+    put_be32(pb, mov->time); /* modification time */
+    put_be32(pb, mov->timescale); /* timescale */
+    for (i=0; i<MAX_STREAMS; i++) {
+        if(mov->tracks[i].entry > 0) {
+            if(maxTrackLen < mov->tracks[i].entry*mov->tracks[i].frameDuration)
+                maxTrackLen = mov->tracks[i].entry*mov->tracks[i].frameDuration;
+            if(maxTrackID < mov->tracks[i].trackID)
+                maxTrackID = mov->tracks[i].trackID;
+        }
+    }
+    put_be32(pb, maxTrackLen); /* duration of longest track */
+
+    put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
+    put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
+    put_be16(pb, 0); /* reserved */
+    put_be32(pb, 0); /* reserved */
+    put_be32(pb, 0); /* reserved */
+
+    /* Matrix structure */
+    put_be32(pb, 0x00010000); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x00010000); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x0); /* reserved */
+    put_be32(pb, 0x40000000); /* reserved */
+
+    put_be32(pb, 0); /* reserved (preview time) */
+    put_be32(pb, 0); /* reserved (preview duration) */
+    put_be32(pb, 0); /* reserved (poster time) */
+    put_be32(pb, 0); /* reserved (selection time) */
+    put_be32(pb, 0); /* reserved (selection duration) */
+    put_be32(pb, 0); /* reserved (current time) */
+    put_be32(pb, maxTrackID+1); /* Next track id */
+    return 0x6c;
+}
+
+int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
+{
+    int pos, size = 8, i;
+    pos = url_ftell(pb);
+    put_be32(pb, 0); /* size placeholder*/
+    put_tag(pb, "moov");
+    mov->timescale = globalTimescale;
+
+    for (i=0; i<MAX_STREAMS; i++) {
+        if(mov->tracks[i].entry > 0) {
+            if(mov->tracks[i].enc->codec_type == CODEC_TYPE_VIDEO) {
+                mov->tracks[i].timescale = globalTimescale;
+                mov->tracks[i].sampleDelta = mov->tracks[i].frameDuration =
+                    globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
+            }
+            else if(mov->tracks[i].enc->codec_type == CODEC_TYPE_AUDIO) {
+                /* If AMR, track timescale = 8000, AMR_WB = 16000 */
+                if(mov->tracks[i].enc->codec_id == CODEC_ID_AMR_NB) {
+                    mov->tracks[i].frameDuration = 20;
+                    mov->tracks[i].sampleDelta = 160;
+                    mov->tracks[i].timescale = 8000;
+                }
+                else {
+                    mov->tracks[i].timescale = globalTimescale;
+                    mov->tracks[i].frameDuration =
+                    globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
+                }
+            }
+            mov->tracks[i].time = mov->time;
+            mov->tracks[i].trackID = i+1;
+        }
+    }
+
+    size += mov_write_mvhd_tag(pb, mov);
+    //size += mov_write_iods_tag(pb, mov);
+    for (i=0; i<MAX_STREAMS; i++) {
+        if(mov->tracks[i].entry > 0) {
+            size += mov_write_trak_tag(pb, &(mov->tracks[i]));
+        }
+    }
+
+    writeSize (pb, pos, size);
+
+    return size;
+}
+
+int mov_write_mdat_tag(ByteIOContext *pb, MOVTrack* track)
+{
+    track->mdat_pos = url_ftell(pb); 
+    put_be32(pb, 0); /* size placeholder*/
+    put_tag(pb, "mdat");
+    return 0;
+}
+
+/* TODO: This needs to be more general */
+int mov_write_ftyp_tag(ByteIOContext *pb)
+{
+    put_be32(pb, 0x14 ); /* size */
+    put_tag(pb, "ftyp");
+    put_tag(pb, "3gp4");
+    put_be32(pb, 0x200 );
+    put_tag(pb, "3gp4");
+    return 0x14;
+}
+
+static int mov_write_header(AVFormatContext *s)
+{
+    ByteIOContext *pb = &s->pb;
+
+    /* write ftyp */
+    mov_write_ftyp_tag(pb);
+    
+    put_flush_packet(pb);
+
+    return 0;
+}
+
+static int Timestamp() {
+    time_t ltime;
+    time ( &ltime );
+    return ltime+(24107*86400);
+}
+
+static int mov_write_packet(AVFormatContext *s, int stream_index,
+                            uint8_t *buf, int size, int force_pts)
+{
+    MOVContext *mov = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    AVCodecContext *enc;
+
+    enc = &s->streams[stream_index]->codec;
+    if (!url_is_streamed(&s->pb)) {
+        MOVTrack* trk = &mov->tracks[stream_index];
+        int sampleCount = 0;
+
+        /* We must find out how many AMR blocks there are in one packet */
+        if(enc->codec_type == CODEC_TYPE_AUDIO &&
+           enc->codec_id == CODEC_ID_AMR_NB) {
+            static uint16_t packed_size[16] = {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};             
+            int len = 0;
+
+            while(len < size && sampleCount < 100) {
+                len += packed_size[(buf[len] >> 3) & 0x0F];
+                sampleCount++;
+            }
+        }
+        /* TODO: Is there some other way to get VOS block from MPEG4 stream? */
+        if(enc->codec_type == CODEC_TYPE_VIDEO &&
+           enc->codec_id == CODEC_ID_MPEG4 &&
+           trk->vosLen == 0)
+        {
+            int index = 0;
+            int vosStart = 0;
+            while(index < size) {
+                if(buf[index] == 0 && buf[index+1] == 0 && buf[index+2] == 1) {
+                    index+=3;
+                    if(buf[index] == 0xB6) {
+                        if(vosStart != 0) {
+                            trk->vosLen = index-3 - (vosStart-3);
+                            trk->vosData = av_malloc(trk->vosLen+2);
+                            memcpy(trk->vosData, (char *)&buf[vosStart-3], trk->vosLen);
+                            break;
+                        }
+                    }
+                    else if(buf[index] == 0xb0) {
+                        vosStart = index;
+                    }
+                }
+                index++;
+            }
+        }
+
+        int cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
+        int id = trk->entry % MOV_INDEX_CLUSTER_SIZE;
+
+        if (trk->ents_allocated <= trk->entry) {
+            trk->cluster = av_realloc(trk->cluster, (cl+1)*sizeof(void*)); 
+            if (!trk->cluster)
+                return -1;
+            trk->cluster[cl] = av_malloc(MOV_INDEX_CLUSTER_SIZE*sizeof(MOVIentry));
+            if (!trk->cluster[cl])
+                return -1;
+            trk->ents_allocated += MOV_INDEX_CLUSTER_SIZE;
+        }
+        if(stream_index == 0 && trk->entry == 0) {
+            mov_write_mdat_tag(pb, trk);
+            mov->time = Timestamp();
+        }
+        trk->cluster[cl][id].pos = url_ftell(pb) - mov->movi_list;
+        trk->cluster[cl][id].len = size;
+        trk->cluster[cl][id].entries = sampleCount;
+        trk->enc = enc;
+        trk->entry++;
+        if(sampleCount == 0)
+            trk->samples++;
+        else
+            trk->samples += sampleCount;
+        trk->mdat_size += size;
+    }
+    put_buffer(pb, buf, size);
+
+    put_flush_packet(pb);
+    return 0;
+}
+
+static int mov_write_trailer(AVFormatContext *s)
+{
+    MOVContext *mov = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    int res = 0;
+    int i, j;
+    offset_t file_size;
+
+    file_size = url_ftell(pb);
+    j = 0;
+
+    /* Write size of mdat tag */
+    for (i=0; i<MAX_STREAMS; i++) {
+        if(mov->tracks[i].ents_allocated > 0) {
+            j += mov->tracks[i].mdat_size;
+        }
+    }
+    url_fseek(pb, mov->tracks[0].mdat_pos, SEEK_SET);
+    put_be32(pb, j+8);
+    url_fseek(pb, file_size, SEEK_SET);
+
+    mov_write_moov_tag(pb, mov);
+
+    for (i=0; i<MAX_STREAMS; i++) {
+        for (j=0; j<mov->tracks[i].ents_allocated/MOV_INDEX_CLUSTER_SIZE; j++) {
+            av_free(mov->tracks[i].cluster[j]);
+        }
+        av_free(mov->tracks[i].cluster);
+        mov->tracks[i].cluster = NULL;
+        mov->tracks[i].ents_allocated = mov->tracks[i].entry = 0;
+    }
+    put_flush_packet(pb);
+
+    return res;
+}
+
+static AVOutputFormat mov_oformat = {
+    "mov",
+    "mov format",
+    NULL,
+    "mov",
+    sizeof(MOVContext),
+    CODEC_ID_MP2,
+    CODEC_ID_SVQ1,
+    mov_write_header,
+    mov_write_packet,
+    mov_write_trailer,
+};
+
+static AVOutputFormat _3gp_oformat = {
+    "3gp",
+    "3gp format",
+    NULL,
+    "3gp",
+    sizeof(MOVContext),
+    CODEC_ID_AMR_NB,
+    CODEC_ID_H263,
+    mov_write_header,
+    mov_write_packet,
+    mov_write_trailer,
+};
+
+static AVOutputFormat mp4_oformat = {
+    "mp4",
+    "mp4 format",
+    NULL,
+    "mp4",
+    sizeof(MOVContext),
+    CODEC_ID_AAC,
+    CODEC_ID_MPEG4,
+    mov_write_header,
+    mov_write_packet,
+    mov_write_trailer,
+};
+
+int movenc_init(void)
+{
+    av_register_output_format(&mov_oformat);
+    av_register_output_format(&_3gp_oformat);
+    av_register_output_format(&mp4_oformat);
+    return 0;
+}